diff --git a/.circleci/config.yml b/.circleci/config.yml
new file mode 100644
index 0000000..90004a7
--- /dev/null
+++ b/.circleci/config.yml
@@ -0,0 +1,36 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: cimg/python:3.11
+
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+
+      - run:
+          name: Init git submodules
+          command: |
+            git submodule update --init --recursive
+
+      - restore_cache:
+          keys:
+          - v1-3.11-dependencies-{{ checksum "poetry.lock" }}
+
+      - run:
+          name: Install dependencies
+          command: |
+            poetry config --local virtualenvs.in-project true
+            poetry install
+
+      - save_cache:
+          paths:
+            - ./.venv
+            - ~/.cache/pypoetry
+          key: v1-3.11-dependencies-{{ checksum "poetry.lock" }}
+
+      - run:
+          name: Tests
+          command: |
+            make test
diff --git a/.clang-format b/.clang-format
old mode 100755
new mode 100644
diff --git a/.github/actions/setup-mingw/action.yml b/.github/actions/setup-mingw/action.yml
new file mode 100644
index 0000000..7c47a5c
--- /dev/null
+++ b/.github/actions/setup-mingw/action.yml
@@ -0,0 +1,25 @@
+name: "Setup MinGW"
+
+inputs:
+  key-base:
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - uses: actions/cache@v3
+      id: cache-mingw
+      with:
+        path: mingw
+        key: ${{ inputs.key-base }}-mingw${{ hashFiles('mingw') }}
+    - run: New-Item 'mingw' -ItemType Directory -Force | Out-Null
+      shell: pwsh
+      if: steps.cache-mingw.outputs.cache-hit != 'true'
+    - run: (New-Object Net.WebClient).DownloadFile('https://github.com/brechtsanders/winlibs_mingw/releases/download/11.3.0-14.0.3-10.0.0-msvcrt-r3/winlibs-x86_64-posix-seh-gcc-11.3.0-mingw-w64msvcrt-10.0.0-r3.7z', 'mingw.7z')
+      shell: pwsh
+      if: steps.cache-mingw.outputs.cache-hit != 'true'
+    - run: 7z x 'mingw.7z' -o'mingw' -aoa
+      shell: pwsh
+      if: steps.cache-mingw.outputs.cache-hit != 'true'
+    - run: $env:PATH = 'mingw\\mingw64\\bin;' + $env:PATH
+      shell: pwsh
diff --git a/.github/actions/setup-poetry/action.yml b/.github/actions/setup-poetry/action.yml
new file mode 100644
index 0000000..8269628
--- /dev/null
+++ b/.github/actions/setup-poetry/action.yml
@@ -0,0 +1,37 @@
+name: "Setup Poetry"
+
+inputs:
+  key-base:
+    required: true
+  use-pipx:
+    required: true
+  use-specific-python-version:
+    required: true
+  specific-python-version:
+    required: false
+
+runs:
+  using: "composite"
+  steps:
+    - run: pipx install poetry
+      shell: bash
+      if: inputs.use-pipx == 'true'
+    - run: pip install poetry
+      shell: bash
+      if: inputs.use-pipx == 'false'
+    - run: poetry config --local virtualenvs.in-project true
+      shell: bash
+    - run: echo "v=$(poetry --version | cut -d' ' -f3 | cut -d')' -f1)" >> "$GITHUB_OUTPUT"
+      shell: bash
+      id: poetry-version
+    - uses: actions/cache@v3
+      id: cache-poetry
+      with:
+        path: .venv
+        key: ${{ inputs.key-base }}-po${{ steps.poetry-version.outputs.v }}-lock${{ hashFiles('poetry.lock') }}
+    - run: poetry env use python${{ inputs.specific-python-version }}
+      shell: bash
+      if: inputs.use-specific-python-version == 'true' && steps.cache-poetry.outputs.cache-hit != 'true'
+    - run: poetry install
+      shell: bash
+      if: steps.cache-poetry.outputs.cache-hit != 'true'
diff --git a/.github/actions/upload-artifacts/action.yml b/.github/actions/upload-artifacts/action.yml
new file mode 100644
index 0000000..e44b692
--- /dev/null
+++ b/.github/actions/upload-artifacts/action.yml
@@ -0,0 +1,34 @@
+name: "Make and upload artifacts"
+
+inputs:
+  make-binary:
+    required: true
+  repair-manylinux:
+    required: false
+    default: false
+  manylinux-target:
+    required: false
+
+runs:
+  using: "composite"
+  steps:
+    - run: make distribute-binary
+      shell: bash
+      if: inputs.make-binary == 'true'
+    - run: make distribute-source
+      shell: bash
+      if: inputs.make-binary == 'false'
+    - run: find dist/*.whl | xargs auditwheel repair --plat=${{ inputs.manylinux-target }}
+      shell: bash
+      if: inputs.make-binary == 'true' && inputs.repair-manylinux == 'true'
+    - uses: actions/upload-artifact@v2
+      with:
+        path: |
+          wheelhouse/*.whl
+      if: inputs.make-binary == 'true' && inputs.repair-manylinux == 'true'
+    - uses: actions/upload-artifact@v2
+      with:
+        path: |
+          dist/*.tar.gz
+          dist/*.whl
+      if: inputs.make-binary == 'false' || inputs.repair-manylinux == 'false'
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..11325d3
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,182 @@
+name: Build, test, release
+
+on:
+  push:
+    branches:
+      - '*'
+    tags:
+      - '[0-9]+.[0-9]+.[0-9]+'
+      - '[0-9]+.[0-9]+.[0-9]+.dev[0-9]+'
+
+env:
+  PY_VERSIONS_STR: >-
+    ["3.8", "3.9", "3.10", "3.11", "3.12"]
+  VERSIONS_LINUX_STR: >-
+    ["manylinux2014", "manylinux_2_28"]
+  VERSIONS_MACOS_STR: >-
+    ["macos-11", "macos-12"]
+  VERSIONS_WINDOWS_STR: >-
+    ["windows-2022"]
+
+
+jobs:
+  pass-env:
+    runs-on: ubuntu-latest
+    outputs:
+      py-versions-str: ${{ steps.set-env.outputs.py_versions_str }}
+      versions-linux-str: ${{ steps.set-env.outputs.versions_linux_str }}
+      versions-macos-str: ${{ steps.set-env.outputs.versions_macos_str }}
+      versions-windows-str: ${{ steps.set-env.outputs.versions_windows_str }}
+      is-from-tag-str: ${{ steps.set-env.outputs.is_from_tag_str }}
+      is-for-release-str: ${{ steps.set-env.outputs.is_for_release_str }}
+    steps:
+      - id: set-env
+        run: |
+          echo "py_versions_str=${{ toJSON(env.PY_VERSIONS_STR) }}" >> "$GITHUB_OUTPUT"
+          echo "versions_linux_str=${{ toJSON(env.VERSIONS_LINUX_STR) }}" >> "$GITHUB_OUTPUT"
+          echo "versions_macos_str=${{ toJSON(env.VERSIONS_MACOS_STR) }}" >> "$GITHUB_OUTPUT"
+          echo "versions_windows_str=${{ toJSON(env.VERSIONS_WINDOWS_STR) }}" >> "$GITHUB_OUTPUT"
+          echo "is_from_tag_str=${{ toJSON(github.ref_type == 'tag') }}" >> "$GITHUB_OUTPUT"
+          echo "is_for_release_str=${{ toJSON(!contains(github.ref_name, 'dev')) }}" >> "$GITHUB_OUTPUT"
+  build-linux:
+    needs: pass-env
+    strategy:
+      fail-fast: false
+      matrix:
+        image-name: ${{ fromJSON(needs.pass-env.outputs.versions-linux-str) }}
+        image-arch:
+          - x86_64
+        py-version: ${{ fromJSON(needs.pass-env.outputs.py-versions-str) }}
+    runs-on: ubuntu-latest
+    container:
+      image: quay.io/pypa/${{ matrix.image-name }}_${{ matrix.image-arch }}
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - uses: ./.github/actions/setup-poetry
+        with:
+          key-base: ${{ matrix.image-name }}_${{ matrix.image-arch }}-py${{ matrix.py-version }}
+          use-pipx: true
+          use-specific-python-version: true
+          specific-python-version: ${{ matrix.py-version }}
+      - run: make test
+      - uses: ./.github/actions/upload-artifacts
+        with:
+          make-binary: true
+          repair-manylinux: true
+          manylinux-target: ${{ matrix.image-name}}_${{ matrix.image-arch }}
+        if: ${{ fromJSON(needs.pass-env.outputs.is-from-tag-str) }}
+  build-macos:
+    needs: pass-env
+    strategy:
+      fail-fast: false
+      matrix:
+        arch: ${{ fromJSON(needs.pass-env.outputs.versions-macos-str) }}
+        py-version: ${{ fromJSON(needs.pass-env.outputs.py-versions-str) }}
+    runs-on: ${{ matrix.arch }}
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - uses: actions/setup-python@v3
+        with:
+          python-version: ${{ matrix.py-version }}
+      - uses: ./.github/actions/setup-poetry
+        with:
+          key-base: ${{ matrix.arch }}-py${{ matrix.py-version }}
+          use-pipx: false
+          use-specific-python-version: false
+      - run: make test
+      - uses: ./.github/actions/upload-artifacts
+        with:
+          make-binary: true
+        if: ${{ fromJSON(needs.pass-env.outputs.is-from-tag-str) }}
+  build-windows:
+    needs: pass-env
+    strategy:
+      fail-fast: false
+      matrix:
+        arch: ${{ fromJSON(needs.pass-env.outputs.versions-windows-str) }}
+        py-version: ${{ fromJSON(needs.pass-env.outputs.py-versions-str) }}
+    runs-on: ${{ matrix.arch }}
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - uses: ./.github/actions/setup-mingw
+        with:
+          key-base: ${{ matrix.arch }}-py${{ matrix.py-version }}
+      - uses: actions/setup-python@v3
+        with:
+          python-version: ${{ matrix.py-version }}
+      - uses: ./.github/actions/setup-poetry
+        with:
+          key-base: ${{ matrix.arch }}-py${{ matrix.py-version }}
+          use-pipx: false
+          use-specific-python-version: false
+      - run: make test
+      - uses: ./.github/actions/upload-artifacts
+        with:
+          make-binary: true
+        if: ${{ fromJSON(needs.pass-env.outputs.is-from-tag-str) }}
+  package-source:
+    needs:
+      - pass-env
+      - build-linux
+      - build-macos
+      - build-windows
+    runs-on: ubuntu-latest
+    if: ${{ fromJSON(needs.pass-env.outputs.is-from-tag-str) }}
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - uses: actions/setup-python@v3
+        with:
+          python-version: ${{ fromJSON(needs.pass-env.outputs.py-versions-str)[0] }}
+      - uses: ./.github/actions/setup-poetry
+        with:
+          key-base: source_linux-py${{ fromJSON(needs.pass-env.outputs.py-versions-str)[0] }}
+          use-pipx: false
+          use-specific-python-version: false
+      - uses: ./.github/actions/upload-artifacts
+        with:
+          make-binary: false
+  upload-pypi:
+    needs:
+      - pass-env
+      - build-linux
+      - build-macos
+      - build-windows
+      - package-source
+    runs-on: ubuntu-latest
+    if: ${{ fromJSON(needs.pass-env.outputs.is-from-tag-str) }}
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - uses: actions/setup-python@v3
+        with:
+          python-version: ${{ fromJSON(needs.pass-env.outputs.py-versions-str)[0] }}
+      - uses: actions/download-artifact@v2
+        with:
+          path: dist
+      - uses: ./.github/actions/setup-poetry
+        with:
+          key-base: source_linux-py${{ fromJSON(needs.pass-env.outputs.py-versions-str)[0] }}
+          use-pipx: false
+          use-specific-python-version: false
+      - uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          user: __token__
+          password: ${{ secrets.PYPI_API_TOKEN }}
+          packages_dir: dist/artifact/
+        if: ${{ fromJSON(needs.pass-env.outputs.is-for-release-str) }}
+      - uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          user: __token__
+          password: ${{ secrets.TESTPYPI_API_TOKEN }}
+          packages_dir: dist/artifact/
+          repository_url: https://test.pypi.org/legacy/
+        if: ${{ !fromJSON(needs.pass-env.outputs.is-for-release-str) }}
diff --git a/.gitignore b/.gitignore
old mode 100755
new mode 100644
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..4e24788
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "upstream-quickjs"]
+	path = upstream-quickjs
+	url = https://github.com/bellard/quickjs.git
diff --git a/.style.yapf b/.style.yapf
old mode 100755
new mode 100644
diff --git a/LICENSE b/LICENSE
old mode 100755
new mode 100644
diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..a5d1b1b
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1 @@
+exclude pyproject.toml poetry.lock
\ No newline at end of file
diff --git a/Makefile b/Makefile
old mode 100755
new mode 100644
index 316204b..943f203
--- a/Makefile
+++ b/Makefile
@@ -1,33 +1,35 @@
 
 test: install
-	pipenv run python -m unittest
+	poetry run python -X dev -m unittest
 
 install: build
-	pipenv run python setup.py develop
+	poetry run python setup.py develop
 
-build: Makefile module.c third-party/quickjs.c third-party/quickjs.h
-	pipenv run python setup.py build
+build: Makefile module.c upstream-quickjs/quickjs.c upstream-quickjs/quickjs.h
+ifeq ($(shell uname | head -c5), MINGW)
+	poetry run python setup.py build -c mingw32
+else
+	poetry run python setup.py build
+endif
 
 format:
-	pipenv run python -m yapf -i -r --style .style.yapf *.py
+	poetry run python -m yapf -i -r --style .style.yapf *.py
 	clang-format-7 -i module.c
 
-distribute: test
+distribute-source: test
 	rm -rf dist/
-	@echo "Now build the wheel for Windows in the dist/ folder."
-	@echo "       pipenv run python setup.py build -c mingw32"
-	@echo "       pipenv run python setup.py bdist_wheel --skip-build"
-	@echo "Press enter to continue when done..."
-	@read _
-	pipenv run python setup.py sdist
+	poetry run python setup.py sdist
 
-upload-test: distribute
-	pipenv run python -m twine upload --repository-url https://test.pypi.org/legacy/ dist/*
+distribute-binary: test
+	poetry run python setup.py bdist_wheel --skip-build
 
-upload: distribute
-	pipenv run python -m twine upload dist/*
+upload-test:
+	poetry run python -m twine upload -r testpypi dist/*
+
+upload:
+	poetry run python -m twine upload dist/*
 
 clean:
 	rm -rf build/ dist/ 
-	rm *.so
-	rm *.pyd
+	rm -f *.so
+	rm -f *.pyd
diff --git a/Pipfile b/Pipfile
deleted file mode 100644
index 10e2f43..0000000
--- a/Pipfile
+++ /dev/null
@@ -1,12 +0,0 @@
-[[source]]
-name = "pypi"
-url = "https://pypi.org/simple"
-verify_ssl = true
-
-[dev-packages]
-
-[packages]
-yapf = "*"
-setuptools = "*"
-wheel = "*"
-twine = "*"
diff --git a/Pipfile.lock b/Pipfile.lock
deleted file mode 100644
index d91a199..0000000
--- a/Pipfile.lock
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-    "_meta": {
-        "hash": {
-            "sha256": "6cfd33a562e78860304bf85b6212c4ef21e396d7a449bc70d215b5d19ab433f0"
-        },
-        "pipfile-spec": 6,
-        "requires": {
-            "python_version": "3.8"
-        },
-        "sources": [
-            {
-                "name": "pypi",
-                "url": "https://pypi.org/simple",
-                "verify_ssl": true
-            }
-        ]
-    },
-    "default": {
-        "bleach": {
-            "hashes": [
-                "sha256:213336e49e102af26d9cde77dd2d0397afabc5a6bf2fed985dc35b5d1e285a16",
-                "sha256:3fdf7f77adcf649c9911387df51254b813185e32b2c6619f690b593a617e19fa"
-            ],
-            "version": "==3.1.0"
-        },
-        "certifi": {
-            "hashes": [
-                "sha256:046832c04d4e752f37383b628bc601a7ea7211496b4638f6514d0e5b9acc4939",
-                "sha256:945e3ba63a0b9f577b1395204e13c3a231f9bc0223888be653286534e5873695"
-            ],
-            "version": "==2019.6.16"
-        },
-        "chardet": {
-            "hashes": [
-                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
-                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
-            ],
-            "version": "==3.0.4"
-        },
-        "docutils": {
-            "hashes": [
-                "sha256:02aec4bd92ab067f6ff27a38a38a41173bf01bed8f89157768c1573f53e474a6",
-                "sha256:51e64ef2ebfb29cae1faa133b3710143496eca21c530f3f71424d77687764274",
-                "sha256:7a4bd47eaf6596e1295ecb11361139febe29b084a87bf005bf899f9a42edc3c6"
-            ],
-            "version": "==0.14"
-        },
-        "idna": {
-            "hashes": [
-                "sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407",
-                "sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c"
-            ],
-            "version": "==2.8"
-        },
-        "pkginfo": {
-            "hashes": [
-                "sha256:7424f2c8511c186cd5424bbf31045b77435b37a8d604990b79d4e70d741148bb",
-                "sha256:a6d9e40ca61ad3ebd0b72fbadd4fba16e4c0e4df0428c041e01e06eb6ee71f32"
-            ],
-            "version": "==1.5.0.1"
-        },
-        "pygments": {
-            "hashes": [
-                "sha256:71e430bc85c88a430f000ac1d9b331d2407f681d6f6aec95e8bcfbc3df5b0127",
-                "sha256:881c4c157e45f30af185c1ffe8d549d48ac9127433f2c380c24b84572ad66297"
-            ],
-            "version": "==2.4.2"
-        },
-        "readme-renderer": {
-            "hashes": [
-                "sha256:bb16f55b259f27f75f640acf5e00cf897845a8b3e4731b5c1a436e4b8529202f",
-                "sha256:c8532b79afc0375a85f10433eca157d6b50f7d6990f337fa498c96cd4bfc203d"
-            ],
-            "version": "==24.0"
-        },
-        "requests": {
-            "hashes": [
-                "sha256:11e007a8a2aa0323f5a921e9e6a2d7e4e67d9877e85773fba9ba6419025cbeb4",
-                "sha256:9cf5292fcd0f598c671cfc1e0d7d1a7f13bb8085e9a590f48c010551dc6c4b31"
-            ],
-            "version": "==2.22.0"
-        },
-        "requests-toolbelt": {
-            "hashes": [
-                "sha256:380606e1d10dc85c3bd47bf5a6095f815ec007be7a8b69c878507068df059e6f",
-                "sha256:968089d4584ad4ad7c171454f0a5c6dac23971e9472521ea3b6d49d610aa6fc0"
-            ],
-            "version": "==0.9.1"
-        },
-        "six": {
-            "hashes": [
-                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
-                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
-            ],
-            "version": "==1.12.0"
-        },
-        "tqdm": {
-            "hashes": [
-                "sha256:14a285392c32b6f8222ecfbcd217838f88e11630affe9006cd0e94c7eff3cb61",
-                "sha256:25d4c0ea02a305a688e7e9c2cdc8f862f989ef2a4701ab28ee963295f5b109ab"
-            ],
-            "version": "==4.32.2"
-        },
-        "twine": {
-            "hashes": [
-                "sha256:0fb0bfa3df4f62076cab5def36b1a71a2e4acb4d1fa5c97475b048117b1a6446",
-                "sha256:d6c29c933ecfc74e9b1d9fa13aa1f87c5d5770e119f5a4ce032092f0ff5b14dc"
-            ],
-            "index": "pypi",
-            "version": "==1.13.0"
-        },
-        "urllib3": {
-            "hashes": [
-                "sha256:b246607a25ac80bedac05c6f282e3cdaf3afb65420fd024ac94435cabe6e18d1",
-                "sha256:dbe59173209418ae49d485b87d1681aefa36252ee85884c31346debd19463232"
-            ],
-            "version": "==1.25.3"
-        },
-        "webencodings": {
-            "hashes": [
-                "sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78",
-                "sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923"
-            ],
-            "version": "==0.5.1"
-        },
-        "wheel": {
-            "hashes": [
-                "sha256:5e79117472686ac0c4aef5bad5172ea73a1c2d1646b808c35926bd26bdfb0c08",
-                "sha256:62fcfa03d45b5b722539ccbc07b190e4bfff4bb9e3a4d470dd9f6a0981002565"
-            ],
-            "index": "pypi",
-            "version": "==0.33.4"
-        },
-        "yapf": {
-            "hashes": [
-                "sha256:02ace10a00fa2e36c7ebd1df2ead91dbfbd7989686dc4ccbdc549e95d19f5780",
-                "sha256:6f94b6a176a7c114cfa6bad86d40f259bbe0f10cf2fa7f2f4b3596fc5802a41b"
-            ],
-            "index": "pypi",
-            "version": "==0.28.0"
-        }
-    },
-    "develop": {}
-}
diff --git a/README.md b/README.md
old mode 100755
new mode 100644
index e9bdb25..3fcde08
--- a/README.md
+++ b/README.md
@@ -1,8 +1,14 @@
+[![CircleCI](https://circleci.com/gh/PetterS/quickjs.svg?style=svg)](https://circleci.com/gh/PetterS/quickjs) [![PyPI version fury.io](https://badge.fury.io/py/quickjs.svg)](https://pypi.python.org/pypi/quickjs/)
+
 Just install with
 
 	pip install quickjs
 
-Windows binaries are provided for Python 3.7, 64-bit.
+Binaries are provided for:
+ - 1.19.2 and later: Python 3.7-3.10, 64-bit for Windows, macOS and GNU/Linux.
+ - 1.18.0-1.19.1: None.
+ - 1.5.1–1.17.0: Python 3.9, 64-bit for Windows.
+ - 1.5.0 and earlier: Python 3.7, 64-bit for Windows.
 
 # Usage
 
@@ -23,11 +29,24 @@ assert f(1, 2) == 3
 ```
 
 Simple types like int, floats and strings are converted directly. Other types (dicts, lists) are converted via JSON by the `Function` class.
-The library is thread-safe if `Function` is used (it has locks). If the `Context` class is used directly, two threads can not use the same context or its objects directly.
+The library is thread-safe if `Function` is used. If the `Context` class is used directly, it can only ever be accessed by the same thread.
+This is true even if the accesses are not concurrent.
 
 Both `Function` and `Context` expose `set_memory_limit` and `set_time_limit` functions that allow limits for code running in production.
 
-For full functionality, please see `test_quickjs.py`.
+## API
+The `Function` class has, apart from being a callable, additional methods:
+- `set_memory_limit`
+- `set_time_limit`
+- `set_max_stack_size`
+- `memory` – returns a dict with information about memory usage.
+- `add_callable` – adds a Python function and makes it callable from JS.
+- `execute_pending_job` – executes a pending job (such as a async function or Promise).
+
+## Documentation
+For full functionality, please see `test_quickjs.py`
 
 # Developing
-Use a `pipenv shell` and `make test` should work from inside its virtual environment.
+This project uses a git submodule for the upstream code, so clone it with the `--recurse-submodules` option or run `git submodule update --init --recursive` afterwards.
+
+Use a `poetry shell` and `make test` should work from inside its virtual environment.
diff --git a/check_memory.py b/check_memory.py
index a31cfb3..6d3d2d8 100644
--- a/check_memory.py
+++ b/check_memory.py
@@ -15,23 +15,28 @@ def run():
     runner = unittest.TextTestRunner()
     runner.run(suite)
 
+filters = [
+    tracemalloc.Filter(True, quickjs.__file__),
+    tracemalloc.Filter(True, test_quickjs.__file__),
+]
+
 def main():
     print("Warming up (to discount regex cache etc.)")
     run()
 
     tracemalloc.start(25)
     gc.collect()
-    snapshot1 = tracemalloc.take_snapshot()
+    snapshot1 = tracemalloc.take_snapshot().filter_traces(filters)
     run()
     gc.collect()
-    snapshot2 = tracemalloc.take_snapshot()
+    snapshot2 = tracemalloc.take_snapshot().filter_traces(filters)
 
     top_stats = snapshot2.compare_to(snapshot1, 'traceback')
 
     print("Objects not released")
     print("====================")
     for stat in top_stats:
-        if "tracemalloc.py" in str(stat) or stat.size_diff == 0:
+        if stat.size_diff == 0:
             continue
         print(stat)
         for line in stat.traceback.format():
diff --git a/module.c b/module.c
index ecb68aa..fba11c3 100644
--- a/module.c
+++ b/module.c
@@ -1,8 +1,21 @@
+#include <Python.h>
 #include <time.h>
 
-#include <Python.h>
+#include "upstream-quickjs/quickjs.h"
 
-#include "third-party/quickjs.h"
+// Node of Python callable that the context needs to keep available.
+typedef struct PythonCallableNode PythonCallableNode;
+struct PythonCallableNode {
+	PyObject *obj;
+	PythonCallableNode *prev;
+	PythonCallableNode *next;
+};
+
+// Keeps track of the time if we are using a time limit.
+typedef struct {
+	clock_t start;
+	clock_t limit;
+} InterruptData;
 
 // The data of the type _quickjs.Context.
 typedef struct {
@@ -10,28 +23,32 @@ typedef struct {
 	JSContext *context;
 	int has_time_limit;
 	clock_t time_limit;
-} ContextData;
+	// Used when releasing the GIL.
+	PyThreadState *thread_state;
+	InterruptData interrupt_data;
+	// NULL-terminated doubly linked list of callable Python objects that we need to keep track of.
+	// We need to store references to callables in a place where we can access them when running
+	// Python's GC. Having them stored only in QuickJS' function opaques would create a dependency
+	// cycle across Python and QuickJS that neither GC can notice.
+	PythonCallableNode *python_callables;
+} RuntimeData;
 
 // The data of the type _quickjs.Object.
 typedef struct {
 	PyObject_HEAD;
-	ContextData *context;
+	RuntimeData *runtime_data;
 	JSValue object;
 } ObjectData;
 
 // The exception raised by this module.
 static PyObject *JSException = NULL;
 static PyObject *StackOverflow = NULL;
+// Converts the current Javascript exception to a Python exception via a C string.
+static void quickjs_exception_to_python(JSContext *context);
 // Converts a JSValue to a Python object.
 //
 // Takes ownership of the JSValue and will deallocate it (refcount reduced by 1).
-static PyObject *quickjs_to_python(ContextData *context_obj, JSValue value);
-
-// Keeps track of the time if we are using a time limit.
-typedef struct {
-	clock_t start;
-	clock_t limit;
-} InterruptData;
+static PyObject *quickjs_to_python(RuntimeData *runtime_data, JSValue value);
 
 // Returns nonzero if we should stop due to a time limit.
 static int js_interrupt_handler(JSRuntime *rt, void *opaque) {
@@ -44,40 +61,77 @@ static int js_interrupt_handler(JSRuntime *rt, void *opaque) {
 }
 
 // Sets up a context and an InterruptData struct if the context has a time limit.
-static void setup_time_limit(ContextData *context, InterruptData *interrupt_data) {
-	if (context->has_time_limit) {
-		JS_SetInterruptHandler(context->runtime, js_interrupt_handler, interrupt_data);
-		interrupt_data->limit = context->time_limit;
+static void setup_time_limit(RuntimeData *runtime_data, InterruptData *interrupt_data) {
+	if (runtime_data->has_time_limit) {
+		JS_SetInterruptHandler(runtime_data->runtime, js_interrupt_handler, interrupt_data);
+		interrupt_data->limit = runtime_data->time_limit;
 		interrupt_data->start = clock();
 	}
 }
 
 // Restores the context if the context has a time limit.
-static void teardown_time_limit(ContextData *context) {
-	if (context->has_time_limit) {
-		JS_SetInterruptHandler(context->runtime, NULL, NULL);
+static void teardown_time_limit(RuntimeData *runtime_data) {
+	if (runtime_data->has_time_limit) {
+		JS_SetInterruptHandler(runtime_data->runtime, NULL, NULL);
 	}
 }
 
+// This method is always called in a context before running JS code in QuickJS. It sets up time
+// limites, releases the GIL etc.
+static void prepare_call_js(RuntimeData *runtime_data) {
+	// We release the GIL in order to speed things up for certain use cases.
+	assert(!runtime_data->thread_state);
+	runtime_data->thread_state = PyEval_SaveThread();
+	JS_UpdateStackTop(runtime_data->runtime);
+	setup_time_limit(runtime_data, &runtime_data->interrupt_data);
+}
+
+// This method is called right after returning from running JS code. Aquires the GIL etc.
+static void end_call_js(RuntimeData *runtime_data) {
+	teardown_time_limit(runtime_data);
+	assert(runtime_data->thread_state);
+	PyEval_RestoreThread(runtime_data->thread_state);
+	runtime_data->thread_state = NULL;
+}
+
+// Called when Python is called again from inside QuickJS.
+static void prepare_call_python(RuntimeData *runtime_data) {
+	assert(runtime_data->thread_state);
+	PyEval_RestoreThread(runtime_data->thread_state);
+	runtime_data->thread_state = NULL;
+}
+
+// Called when the operation started by prepare_call_python is done.
+static void end_call_python(RuntimeData *runtime_data) {
+	assert(!runtime_data->thread_state);
+	runtime_data->thread_state = PyEval_SaveThread();
+}
+
+// GC traversal.
+static int object_traverse(ObjectData *self, visitproc visit, void *arg) {
+	Py_VISIT(self->runtime_data);
+	return 0;
+}
+
 // Creates an instance of the Object class.
 static PyObject *object_new(PyTypeObject *type, PyObject *args, PyObject *kwds) {
-	ObjectData *self;
-	self = (ObjectData *)type->tp_alloc(type, 0);
+	ObjectData *self = PyObject_GC_New(ObjectData, type);
 	if (self != NULL) {
-		self->context = NULL;
+		self->runtime_data = NULL;
 	}
 	return (PyObject *)self;
 }
 
 // Deallocates an instance of the Object class.
 static void object_dealloc(ObjectData *self) {
-	if (self->context) {
-		JS_FreeValue(self->context->context, self->object);
-		// We incremented the refcount of the context when we created this object, so we should
+	if (self->runtime_data) {
+		PyObject_GC_UnTrack(self);
+		JS_FreeValue(self->runtime_data->context, self->object);
+		// We incremented the refcount of the runtime data when we created this object, so we should
 		// decrease it now so we don't leak memory.
-		Py_DECREF(self->context);
+		Py_CLEAR(self->runtime_data);
 	}
-	Py_TYPE(self)->tp_free((PyObject *)self);
+	PyObject_GC_Del(self);
 }
 
 // _quickjs.Object.__call__
@@ -87,20 +141,9 @@ static PyObject *object_call(ObjectData *self, PyObject *args, PyObject *kwds);
 //
 // Returns the JSON representation of the object as a Python string.
 static PyObject *object_json(ObjectData *self) {
-	// Use the JS JSON.stringify method to convert to JSON. First, we need to retrieve it via
-	// API calls.
-	JSContext *context = self->context->context;
-	JSValue global = JS_GetGlobalObject(context);
-	JSValue JSON = JS_GetPropertyStr(context, global, "JSON");
-	JSValue stringify = JS_GetPropertyStr(context, JSON, "stringify");
-
-	JSValueConst args[1] = {self->object};
-	JSValue json_string = JS_Call(context, stringify, JSON, 1, args);
-
-	JS_FreeValue(context, global);
-	JS_FreeValue(context, JSON);
-	JS_FreeValue(context, stringify);
-	return quickjs_to_python(self->context, json_string);
+	JSContext *context = self->runtime_data->context;
+	JSValue json_string = JS_JSONStringify(context, self->object, JS_UNDEFINED, JS_UNDEFINED);
+	return quickjs_to_python(self->runtime_data, json_string);
 }
 
 // All methods of the _quickjs.Object class.
@@ -114,15 +157,75 @@ static PyTypeObject Object = {PyVarObject_HEAD_INIT(NULL, 0).tp_name = "_quickjs
                               .tp_doc = "Quickjs object",
                               .tp_basicsize = sizeof(ObjectData),
                               .tp_itemsize = 0,
-                              .tp_flags = Py_TPFLAGS_DEFAULT,
+                              .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
+                              .tp_traverse = (traverseproc)object_traverse,
                               .tp_new = object_new,
                               .tp_dealloc = (destructor)object_dealloc,
                               .tp_call = (ternaryfunc)object_call,
                               .tp_methods = object_methods};
 
+// Whether converting item to QuickJS would be possible.
+static int python_to_quickjs_possible(RuntimeData *runtime_data, PyObject *item) {
+	if (PyBool_Check(item)) {
+		return 1;
+	} else if (PyLong_Check(item)) {
+		return 1;
+	} else if (PyFloat_Check(item)) {
+		return 1;
+	} else if (item == Py_None) {
+		return 1;
+	} else if (PyUnicode_Check(item)) {
+		return 1;
+	} else if (PyObject_IsInstance(item, (PyObject *)&Object)) {
+		ObjectData *object = (ObjectData *)item;
+		if (object->runtime_data != runtime_data) {
+			PyErr_Format(PyExc_ValueError, "Can not mix JS objects from different contexts.");
+			return 0;
+		}
+		return 1;
+	} else {
+		PyErr_Format(PyExc_TypeError,
+		             "Unsupported type when converting a Python object to quickjs: %s.",
+		             Py_TYPE(item)->tp_name);
+		return 0;
+	}
+}
+
+// Converts item to QuickJS.
+//
+// If the Python object is not possible to convert to JS, undefined will be returned. This fallback
+// will not be used if python_to_quickjs_possible returns 1.
+static JSValueConst python_to_quickjs(RuntimeData *runtime_data, PyObject *item) {
+	if (PyBool_Check(item)) {
+		return JS_MKVAL(JS_TAG_BOOL, item == Py_True ? 1 : 0);
+	} else if (PyLong_Check(item)) {
+		int overflow;
+		long value = PyLong_AsLongAndOverflow(item, &overflow);
+		if (overflow) {
+			PyObject *float_value = PyNumber_Float(item);
+			double double_value = PyFloat_AsDouble(float_value);
+			Py_DECREF(float_value);
+			return JS_NewFloat64(runtime_data->context, double_value);
+		} else {
+			return JS_MKVAL(JS_TAG_INT, value);
+		}
+	} else if (PyFloat_Check(item)) {
+		return JS_NewFloat64(runtime_data->context, PyFloat_AsDouble(item));
+	} else if (item == Py_None) {
+		return JS_NULL;
+	} else if (PyUnicode_Check(item)) {
+		return JS_NewString(runtime_data->context, PyUnicode_AsUTF8(item));
+	} else if (PyObject_IsInstance(item, (PyObject *)&Object)) {
+		return JS_DupValue(runtime_data->context, ((ObjectData *)item)->object);
+	} else {
+		// Can not happen if python_to_quickjs_possible passes.
+		return JS_UNDEFINED;
+	}
+}
+
 // _quickjs.Object.__call__
 static PyObject *object_call(ObjectData *self, PyObject *args, PyObject *kwds) {
-	if (self->context == NULL) {
+	if (self->runtime_data == NULL) {
 		// This object does not have a context and has not been created by this module.
 		Py_RETURN_NONE;
 	}
@@ -132,74 +235,84 @@ static PyObject *object_call(ObjectData *self, PyObject *args, PyObject *kwds) {
 	const int nargs = PyTuple_Size(args);
 	for (int i = 0; i < nargs; ++i) {
 		PyObject *item = PyTuple_GetItem(args, i);
-		if (PyBool_Check(item)) {
-		} else if (PyLong_Check(item)) {
-		} else if (PyFloat_Check(item)) {
-		} else if (item == Py_None) {
-		} else if (PyUnicode_Check(item)) {
-		} else if (PyObject_IsInstance(item, (PyObject *)&Object)) {
-			ObjectData *object = (ObjectData *)item;
-			if (object->context != self->context) {
-				PyErr_Format(PyExc_ValueError, "Can not mix JS objects from different contexts.");
-				return NULL;
-			}
-		} else {
-			PyErr_Format(PyExc_TypeError,
-			             "Unsupported type of argument %d when calling quickjs object: %s.",
-			             i,
-			             Py_TYPE(item)->tp_name);
+		if (!python_to_quickjs_possible(self->runtime_data, item)) {
 			return NULL;
 		}
 	}
 
 	// Now we know that all arguments are supported and we can convert them.
-	JSValueConst *jsargs = malloc(nargs * sizeof(JSValueConst));
+	JSValueConst *jsargs;
+	if (nargs) {
+		jsargs = js_malloc(self->runtime_data->context, nargs * sizeof(JSValueConst));
+		if (jsargs == NULL) {
+			quickjs_exception_to_python(self->runtime_data->context);
+			return NULL;
+		}
+	}
 	for (int i = 0; i < nargs; ++i) {
 		PyObject *item = PyTuple_GetItem(args, i);
-		if (PyBool_Check(item)) {
-			jsargs[i] = JS_MKVAL(JS_TAG_BOOL, item == Py_True ? 1 : 0);
-		} else if (PyLong_Check(item)) {
-			jsargs[i] = JS_MKVAL(JS_TAG_INT, PyLong_AsLong(item));
-		} else if (PyFloat_Check(item)) {
-			jsargs[i] = JS_NewFloat64(self->context->context, PyFloat_AsDouble(item));
-		} else if (item == Py_None) {
-			jsargs[i] = JS_NULL;
-		} else if (PyUnicode_Check(item)) {
-			jsargs[i] = JS_NewString(self->context->context, PyUnicode_AsUTF8(item));
-		} else if (PyObject_IsInstance(item, (PyObject *)&Object)) {
-			jsargs[i] = JS_DupValue(self->context->context, ((ObjectData *)item)->object);
-		}
+		jsargs[i] = python_to_quickjs(self->runtime_data, item);
 	}
 
-	// Perform the actual function call. We release the GIL in order to speed things up for certain
-	// use cases. If this module becomes more complicated and gains the capability to call Python
-	// function from JS, this needs to be reversed or improved.
+	prepare_call_js(self->runtime_data);
 	JSValue value;
-	Py_BEGIN_ALLOW_THREADS;
-	InterruptData interrupt_data;
-	setup_time_limit(self->context, &interrupt_data);
-	value = JS_Call(self->context->context, self->object, JS_NULL, nargs, jsargs);
-	teardown_time_limit(self->context);
-	Py_END_ALLOW_THREADS;
-
+	value = JS_Call(self->runtime_data->context, self->object, JS_NULL, nargs, jsargs);
 	for (int i = 0; i < nargs; ++i) {
-		JS_FreeValue(self->context->context, jsargs[i]);
+		JS_FreeValue(self->runtime_data->context, jsargs[i]);
+	}
+	if (nargs) {
+		js_free(self->runtime_data->context, jsargs);
+	}
+	end_call_js(self->runtime_data);
+	return quickjs_to_python(self->runtime_data, value);
+}
+
+// Converts the current Javascript exception to a Python exception via a C string.
+static void quickjs_exception_to_python(JSContext *context) {
+	JSValue exception = JS_GetException(context);
+	const char *cstring = JS_ToCString(context, exception);
+	const char *stack_cstring = NULL;
+	if (!JS_IsNull(exception) && !JS_IsUndefined(exception)) {
+		JSValue stack = JS_GetPropertyStr(context, exception, "stack");
+		if (!JS_IsException(stack)) {
+			stack_cstring = JS_ToCString(context, stack);
+			JS_FreeValue(context, stack);
+		}
 	}
-	free(jsargs);
-	return quickjs_to_python(self->context, value);
+	if (cstring != NULL) {
+		const char *safe_stack_cstring = stack_cstring ? stack_cstring : "";
+		if (strstr(cstring, "stack overflow") != NULL) {
+			PyErr_Format(StackOverflow, "%s\n%s", cstring, safe_stack_cstring);
+		} else {
+			PyErr_Format(JSException, "%s\n%s", cstring, safe_stack_cstring);
+		}
+	} else {
+		// This has been observed to happen when different threads have used the same QuickJS
+		// runtime, but not at the same time.
+		// Could potentially be another problem though, since JS_ToCString may return NULL.
+		PyErr_Format(JSException,
+					 "(Failed obtaining QuickJS error string. Concurrency issue?)");
+	}
+	JS_FreeCString(context, cstring);
+	JS_FreeCString(context, stack_cstring);
+	JS_FreeValue(context, exception);
 }
 
 // Converts a JSValue to a Python object.
 //
 // Takes ownership of the JSValue and will deallocate it (refcount reduced by 1).
-static PyObject *quickjs_to_python(ContextData *context_obj, JSValue value) {
-	JSContext *context = context_obj->context;
+static PyObject *quickjs_to_python(RuntimeData *runtime_data, JSValue value) {
+	JSContext *context = runtime_data->context;
 	int tag = JS_VALUE_GET_TAG(value);
 	// A return value of NULL means an exception.
 	PyObject *return_value = NULL;
 
 	if (tag == JS_TAG_INT) {
 		return_value = Py_BuildValue("i", JS_VALUE_GET_INT(value));
+	} else if (tag == JS_TAG_BIG_INT) {
+		const char *cstring = JS_ToCString(context, value);
+		return_value = PyLong_FromString(cstring, NULL, 10);
+		JS_FreeCString(context, cstring);
 	} else if (tag == JS_TAG_BOOL) {
 		return_value = Py_BuildValue("O", JS_VALUE_GET_BOOL(value) ? Py_True : Py_False);
 	} else if (tag == JS_TAG_NULL) {
@@ -207,40 +320,22 @@ static PyObject *quickjs_to_python(ContextData *context_obj, JSValue value) {
 	} else if (tag == JS_TAG_UNDEFINED) {
 		return_value = Py_None;
 	} else if (tag == JS_TAG_EXCEPTION) {
-		// We have a Javascript exception. We convert it to a Python exception via a C string.
-		JSValue exception = JS_GetException(context);
-		JSValue error_string = JS_ToString(context, exception);
-		const char *cstring = JS_ToCString(context, error_string);
-		if (cstring != NULL) {
-			if (strstr(cstring, "stack overflow") != NULL) {
-				PyErr_Format(StackOverflow, "%s", cstring);
-			} else {
-				PyErr_Format(JSException, "%s", cstring);
-			}
-			JS_FreeCString(context, cstring);
-		} else {
-			// This has been observed to happen when different threads have used the same QuickJS
-			// runtime, but not at the same time.
-			// Could potentially be another problem though, since JS_ToCString may return NULL.
-			PyErr_Format(JSException,
-			             "(Failed obtaining QuickJS error string. Concurrency issue?)");
-		}
-		JS_FreeValue(context, error_string);
-		JS_FreeValue(context, exception);
+		quickjs_exception_to_python(context);
 	} else if (tag == JS_TAG_FLOAT64) {
 		return_value = Py_BuildValue("d", JS_VALUE_GET_FLOAT64(value));
 	} else if (tag == JS_TAG_STRING) {
 		const char *cstring = JS_ToCString(context, value);
 		return_value = Py_BuildValue("s", cstring);
 		JS_FreeCString(context, cstring);
-	} else if (tag == JS_TAG_OBJECT || tag == JS_TAG_MODULE) {
+	} else if (tag == JS_TAG_OBJECT || tag == JS_TAG_MODULE || tag == JS_TAG_SYMBOL) {
 		// This is a Javascript object or function. We wrap it in a _quickjs.Object.
 		return_value = PyObject_CallObject((PyObject *)&Object, NULL);
 		ObjectData *object = (ObjectData *)return_value;
 		// This is important. Otherwise, the context may be deallocated before the object, which
 		// will result in a segfault with high probability.
-		Py_INCREF(context_obj);
-		object->context = context_obj;
+		Py_INCREF(runtime_data);
+		object->runtime_data = runtime_data;
+		PyObject_GC_Track(object);
 		object->object = JS_DupValue(context, value);
 	} else {
 		PyErr_Format(PyExc_TypeError, "Unknown quickjs tag: %d", tag);
@@ -261,46 +356,158 @@ static PyObject *test(PyObject *self, PyObject *args) {
 // Global state of the module. Currently none.
 struct module_state {};
 
+// GC traversal.
+static int runtime_traverse(RuntimeData *self, visitproc visit, void *arg) {
+	PythonCallableNode *node = self->python_callables;
+	while (node) {
+		Py_VISIT(node->obj);
+		node = node->next;
+	}
+	return 0;
+}
+
+// GC clearing. Object does not have a clearing method, therefore dependency cycles
+// between Context and Object will always be cleared starting here.
+static int runtime_clear(RuntimeData *self) {
+	PythonCallableNode *node = self->python_callables;
+	while (node) {
+		Py_CLEAR(node->obj);
+		node = node->next;
+	}
+	return 0;
+}
+
+static JSClassID js_python_function_class_id;
+
+static void js_python_function_finalizer(JSRuntime *rt, JSValue val) {
+	PythonCallableNode *node = JS_GetOpaque(val, js_python_function_class_id);
+	RuntimeData *runtime_data = JS_GetRuntimeOpaque(rt);
+	if (node) {
+		// fail safe
+		JS_SetOpaque(val, NULL);
+		// NOTE: This may be called from e.g. runtime_dealloc, but also from
+		// e.g. JS_Eval, so we need to ensure that we are in the correct state.
+		// TODO: integrate better with (prepare|end)_call_(python|js).
+		if (runtime_data->thread_state) {
+			PyEval_RestoreThread(runtime_data->thread_state);
+		}
+		if (node->prev) {
+			node->prev->next = node->next;
+		} else {
+			runtime_data->python_callables = node->next;
+		}
+		if (node->next) {
+			node->next->prev = node->prev;
+		}
+		// May have just been cleared in runtime_clear.
+		Py_XDECREF(node->obj);
+		PyMem_Free(node);
+		if (runtime_data->thread_state) {
+			runtime_data->thread_state = PyEval_SaveThread();
+		}
+	};
+}
+
+static JSValue js_python_function_call(JSContext *ctx, JSValueConst func_obj,
+                                       JSValueConst this_val, int argc, JSValueConst *argv,
+                                       int flags) {
+	RuntimeData *runtime_data = (RuntimeData *)JS_GetRuntimeOpaque(JS_GetRuntime(ctx));
+	PythonCallableNode *node = JS_GetOpaque(func_obj, js_python_function_class_id);
+	if (runtime_data->has_time_limit) {
+		return JS_ThrowInternalError(ctx, "Can not call into Python with a time limit set.");
+	}
+	prepare_call_python(runtime_data);
+
+	PyObject *args = PyTuple_New(argc);
+	if (!args) {
+		end_call_python(runtime_data);
+		return JS_ThrowOutOfMemory(ctx);
+	}
+	int tuple_success = 1;
+	for (int i = 0; i < argc; ++i) {
+		PyObject *arg = quickjs_to_python(runtime_data, JS_DupValue(ctx, argv[i]));
+		if (!arg) {
+			tuple_success = 0;
+			break;
+		}
+		PyTuple_SET_ITEM(args, i, arg);
+	}
+	if (!tuple_success) {
+		Py_DECREF(args);
+		end_call_python(runtime_data);
+		return JS_ThrowInternalError(ctx, "Internal error: could not convert args.");
+	}
+
+	PyObject *result = PyObject_CallObject(node->obj, args);
+	Py_DECREF(args);
+	if (!result) {
+		end_call_python(runtime_data);
+		return JS_ThrowInternalError(ctx, "Python call failed.");
+	}
+	JSValue js_result = JS_NULL;
+	if (python_to_quickjs_possible(runtime_data, result)) {
+		js_result = python_to_quickjs(runtime_data, result);
+	} else {
+		PyErr_Clear();
+		js_result = JS_ThrowInternalError(ctx, "Can not convert Python result to JS.");
+	}
+	Py_DECREF(result);
+
+	end_call_python(runtime_data);
+	return js_result;
+}
+
+static JSClassDef js_python_function_class = {
+	"PythonFunction",
+	.finalizer = js_python_function_finalizer,
+	.call = js_python_function_call,
+};
+
 // Creates an instance of the _quickjs.Context class.
-static PyObject *context_new(PyTypeObject *type, PyObject *args, PyObject *kwds) {
-	ContextData *self;
-	self = (ContextData *)type->tp_alloc(type, 0);
+static PyObject *runtime_new(PyTypeObject *type, PyObject *args, PyObject *kwds) {
+	RuntimeData *self = PyObject_GC_New(RuntimeData, type);
 	if (self != NULL) {
 		// We never have different contexts for the same runtime. This way, different
 		// _quickjs.Context can be used concurrently.
 		self->runtime = JS_NewRuntime();
 		self->context = JS_NewContext(self->runtime);
+		JS_NewClass(self->runtime, js_python_function_class_id,
+		            &js_python_function_class);
+		JSValue global = JS_GetGlobalObject(self->context);
+		JSValue fct_cls = JS_GetPropertyStr(self->context, global, "Function");
+		JSValue fct_proto = JS_GetPropertyStr(self->context, fct_cls, "prototype");
+		JS_FreeValue(self->context, fct_cls);
+		JS_SetClassProto(self->context, js_python_function_class_id, fct_proto);
+		JS_FreeValue(self->context, global);
 		self->has_time_limit = 0;
 		self->time_limit = 0;
+		self->thread_state = NULL;
+		self->python_callables = NULL;
+		JS_SetRuntimeOpaque(self->runtime, self);
+		PyObject_GC_Track(self);
 	}
 	return (PyObject *)self;
 }
 
 // Deallocates an instance of the _quickjs.Context class.
-static void context_dealloc(ContextData *self) {
+static void runtime_dealloc(RuntimeData *self) {
 	JS_FreeContext(self->context);
 	JS_FreeRuntime(self->runtime);
-	Py_TYPE(self)->tp_free((PyObject *)self);
+	PyObject_GC_UnTrack(self);
+	PyObject_GC_Del(self);
 }
 
 // Evaluates a Python string as JS and returns the result as a Python object. Will return
 // _quickjs.Object for complex types (other than e.g. str, int).
-static PyObject *context_eval_internal(ContextData *self, PyObject *args, int eval_type) {
+static PyObject *runtime_eval_internal(RuntimeData *self, PyObject *args, int eval_type) {
 	const char *code;
 	if (!PyArg_ParseTuple(args, "s", &code)) {
 		return NULL;
 	}
-
-	// Perform the actual evaluation. We release the GIL in order to speed things up for certain
-	// use cases. If this module becomes more complicated and gains the capability to call Python
-	// function from JS, this needs to be reversed or improved.
+	prepare_call_js(self);
 	JSValue value;
-	Py_BEGIN_ALLOW_THREADS;
-	InterruptData interrupt_data;
-	setup_time_limit(self, &interrupt_data);
 	value = JS_Eval(self->context, code, strlen(code), "<input>", eval_type);
-	teardown_time_limit(self);
-	Py_END_ALLOW_THREADS;
+	end_call_js(self);
 	return quickjs_to_python(self, value);
 }
 
@@ -308,21 +515,55 @@ static PyObject *context_eval_internal(ContextData *self, PyObject *args, int ev
 //
 // Evaluates a Python string as JS and returns the result as a Python object. Will return
 // _quickjs.Object for complex types (other than e.g. str, int).
-static PyObject *context_eval(ContextData *self, PyObject *args) {
-	return context_eval_internal(self, args, JS_EVAL_TYPE_GLOBAL);
+static PyObject *runtime_eval(RuntimeData *self, PyObject *args) {
+	return runtime_eval_internal(self, args, JS_EVAL_TYPE_GLOBAL);
 }
 
 // _quickjs.Context.module
 //
 // Evaluates a Python string as JS module. Otherwise identical to eval.
-static PyObject *context_module(ContextData *self, PyObject *args) {
-	return context_eval_internal(self, args, JS_EVAL_TYPE_MODULE);
+static PyObject *runtime_module(RuntimeData *self, PyObject *args) {
+	return runtime_eval_internal(self, args, JS_EVAL_TYPE_MODULE);
+}
+
+// _quickjs.Context.execute_pending_job
+//
+// If there are pending jobs, executes one and returns True. Else returns False.
+static PyObject *runtime_execute_pending_job(RuntimeData *self) {
+	prepare_call_js(self);
+	JSContext *ctx;
+	int ret = JS_ExecutePendingJob(self->runtime, &ctx);
+	end_call_js(self);
+	if (ret > 0) {
+		Py_RETURN_TRUE;
+	} else if (ret == 0) {
+		Py_RETURN_FALSE;
+	} else {
+		quickjs_exception_to_python(ctx);
+		return NULL;
+	}
+}
+
+// _quickjs.Context.parse_json
+//
+// Evaluates a Python string as JSON and returns the result as a Python object. Will
+// return _quickjs.Object for complex types (other than e.g. str, int).
+static PyObject *runtime_parse_json(RuntimeData *self, PyObject *args) {
+	const char *data;
+	if (!PyArg_ParseTuple(args, "s", &data)) {
+		return NULL;
+	}
+	JSValue value;
+	Py_BEGIN_ALLOW_THREADS;
+	value = JS_ParseJSON(self->context, data, strlen(data), "runtime_parse_json.json");
+	Py_END_ALLOW_THREADS;
+	return quickjs_to_python(self, value);
 }
 
 // _quickjs.Context.get
 //
 // Retrieves a global variable from the JS context.
-static PyObject *context_get(ContextData *self, PyObject *args) {
+static PyObject *runtime_get(RuntimeData *self, PyObject *args) {
 	const char *name;
 	if (!PyArg_ParseTuple(args, "s", &name)) {
 		return NULL;
@@ -333,10 +574,35 @@ static PyObject *context_get(ContextData *self, PyObject *args) {
 	return quickjs_to_python(self, value);
 }
 
+// _quickjs.Context.set
+//
+// Sets a global variable to the JS context.
+static PyObject *runtime_set(RuntimeData *self, PyObject *args) {
+	const char *name;
+	PyObject *item;
+	if (!PyArg_ParseTuple(args, "sO", &name, &item)) {
+		return NULL;
+	}
+	JSValue global = JS_GetGlobalObject(self->context);
+	int ret = 0;
+	if (python_to_quickjs_possible(self, item)) {
+		ret = JS_SetPropertyStr(self->context, global, name, python_to_quickjs(self, item));
+		if (ret != 1) {
+			PyErr_SetString(PyExc_TypeError, "Failed setting the variable.");
+		}
+	}
+	JS_FreeValue(self->context, global);
+	if (ret == 1) {
+		Py_RETURN_NONE;
+	} else {
+		return NULL;
+	}
+}
+
 // _quickjs.Context.set_memory_limit
 //
 // Sets the memory limit of the context.
-static PyObject *context_set_memory_limit(ContextData *self, PyObject *args) {
+static PyObject *runtime_set_memory_limit(RuntimeData *self, PyObject *args) {
 	Py_ssize_t limit;
 	if (!PyArg_ParseTuple(args, "n", &limit)) {
 		return NULL;
@@ -348,7 +614,7 @@ static PyObject *context_set_memory_limit(ContextData *self, PyObject *args) {
 // _quickjs.Context.set_time_limit
 //
 // Sets the CPU time limit of the context. This will be used in an interrupt handler.
-static PyObject *context_set_time_limit(ContextData *self, PyObject *args) {
+static PyObject *runtime_set_time_limit(RuntimeData *self, PyObject *args) {
 	double limit;
 	if (!PyArg_ParseTuple(args, "d", &limit)) {
 		return NULL;
@@ -365,19 +631,19 @@ static PyObject *context_set_time_limit(ContextData *self, PyObject *args) {
 // _quickjs.Context.set_max_stack_size
 //
 // Sets the max stack size in bytes.
-static PyObject *context_set_max_stack_size(ContextData *self, PyObject *args) {
+static PyObject *runtime_set_max_stack_size(RuntimeData *self, PyObject *args) {
 	Py_ssize_t limit;
 	if (!PyArg_ParseTuple(args, "n", &limit)) {
 		return NULL;
 	}
-	JS_SetMaxStackSize(self->context, limit);
+	JS_SetMaxStackSize(self->runtime, limit);
 	Py_RETURN_NONE;
 }
 
 // _quickjs.Context.memory
 //
 // Sets the CPU time limit of the context. This will be used in an interrupt handler.
-static PyObject *context_memory(ContextData *self) {
+static PyObject *runtime_memory(RuntimeData *self) {
 	PyObject *dict = PyDict_New();
 	if (dict == NULL) {
 		return NULL;
@@ -424,45 +690,118 @@ static PyObject *context_memory(ContextData *self) {
 // _quickjs.Context.gc
 //
 // Runs garbage collection.
-static PyObject *context_gc(ContextData *self) {
+static PyObject *runtime_gc(RuntimeData *self) {
 	JS_RunGC(self->runtime);
 	Py_RETURN_NONE;
 }
 
+
+static PyObject *runtime_add_callable(RuntimeData *self, PyObject *args) {
+	const char *name;
+	PyObject *callable;
+	if (!PyArg_ParseTuple(args, "sO", &name, &callable)) {
+		return NULL;
+	}
+	if (!PyCallable_Check(callable)) {
+		PyErr_SetString(PyExc_TypeError, "Argument must be callable.");
+		return NULL;
+	}
+
+	JSValue function = JS_NewObjectClass(self->context, js_python_function_class_id);
+	if (JS_IsException(function)) {
+		quickjs_exception_to_python(self->context);
+		return NULL;
+	}
+	// TODO: Should we allow setting the .length of the function to something other than 0?
+	JS_DefinePropertyValueStr(self->context, function, "name", JS_NewString(self->context, name), JS_PROP_CONFIGURABLE);
+	PythonCallableNode *node = PyMem_Malloc(sizeof(PythonCallableNode));
+	if (!node) {
+		JS_FreeValue(self->context, function);
+		return NULL;
+	}
+	Py_INCREF(callable);
+	node->obj = callable;
+	node->prev = NULL;
+	node->next = self->python_callables;
+	if (self->python_callables) {
+		self->python_callables->prev = node;
+	}
+	self->python_callables = node;
+	JS_SetOpaque(function, node);
+
+	JSValue global = JS_GetGlobalObject(self->context);
+	if (JS_IsException(global)) {
+		JS_FreeValue(self->context, function);
+		quickjs_exception_to_python(self->context);
+		return NULL;
+	}
+	// If this fails we don't notify the caller of this function.
+	int ret = JS_SetPropertyStr(self->context, global, name, function);
+	JS_FreeValue(self->context, global);
+	if (ret != 1) {
+		PyErr_SetString(PyExc_TypeError, "Failed adding the callable.");
+		return NULL;
+	} else {
+		Py_RETURN_NONE;
+	}
+}
+
+
+// _quickjs.Context.globalThis
+//
+// Global object of the JS context.
+static PyObject *runtime_global_this(RuntimeData *self, void *closure) {
+	return quickjs_to_python(self, JS_GetGlobalObject(self->context));
+}
+
+
 // All methods of the _quickjs.Context class.
-static PyMethodDef context_methods[] = {
-    {"eval", (PyCFunction)context_eval, METH_VARARGS, "Evaluates a Javascript string."},
+static PyMethodDef runtime_methods[] = {
+    {"eval", (PyCFunction)runtime_eval, METH_VARARGS, "Evaluates a Javascript string."},
     {"module",
-     (PyCFunction)context_module,
+     (PyCFunction)runtime_module,
      METH_VARARGS,
      "Evaluates a Javascript string as a module."},
-    {"get", (PyCFunction)context_get, METH_VARARGS, "Gets a Javascript global variable."},
+    {"execute_pending_job", (PyCFunction)runtime_execute_pending_job, METH_NOARGS, "Executes a pending job."},
+    {"parse_json", (PyCFunction)runtime_parse_json, METH_VARARGS, "Parses a JSON string."},
+    {"get", (PyCFunction)runtime_get, METH_VARARGS, "Gets a Javascript global variable."},
+    {"set", (PyCFunction)runtime_set, METH_VARARGS, "Sets a Javascript global variable."},
     {"set_memory_limit",
-     (PyCFunction)context_set_memory_limit,
+     (PyCFunction)runtime_set_memory_limit,
      METH_VARARGS,
      "Sets the memory limit in bytes."},
     {"set_time_limit",
-     (PyCFunction)context_set_time_limit,
+     (PyCFunction)runtime_set_time_limit,
      METH_VARARGS,
      "Sets the CPU time limit in seconds (C function clock() is used)."},
     {"set_max_stack_size",
-     (PyCFunction)context_set_max_stack_size,
+     (PyCFunction)runtime_set_max_stack_size,
      METH_VARARGS,
      "Sets the maximum stack size in bytes. Default is 256kB."},
-    {"memory", (PyCFunction)context_memory, METH_NOARGS, "Returns the memory usage as a dict."},
-    {"gc", (PyCFunction)context_gc, METH_NOARGS, "Runs garbage collection."},
+    {"memory", (PyCFunction)runtime_memory, METH_NOARGS, "Returns the memory usage as a dict."},
+    {"gc", (PyCFunction)runtime_gc, METH_NOARGS, "Runs garbage collection."},
+    {"add_callable", (PyCFunction)runtime_add_callable, METH_VARARGS, "Wraps a Python callable."},
+    {NULL} /* Sentinel */
+};
+
+// All getsetters (properties) of the _quickjs.Context class.
+static PyGetSetDef runtime_getsetters[] = {
+    {"globalThis", (getter)runtime_global_this, NULL, "Global object of the context.", NULL},
     {NULL} /* Sentinel */
 };
 
 // Define the _quickjs.Context type.
 static PyTypeObject Context = {PyVarObject_HEAD_INIT(NULL, 0).tp_name = "_quickjs.Context",
                                .tp_doc = "Quickjs context",
-                               .tp_basicsize = sizeof(ContextData),
+                               .tp_basicsize = sizeof(RuntimeData),
                                .tp_itemsize = 0,
-                               .tp_flags = Py_TPFLAGS_DEFAULT,
-                               .tp_new = context_new,
-                               .tp_dealloc = (destructor)context_dealloc,
-                               .tp_methods = context_methods};
+                               .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
+                               .tp_traverse = (traverseproc)runtime_traverse,
+                               .tp_clear = (inquiry)runtime_clear,
+                               .tp_new = runtime_new,
+                               .tp_dealloc = (destructor)runtime_dealloc,
+                               .tp_methods = runtime_methods,
+                               .tp_getset = runtime_getsetters};
 
 // All global methods in _quickjs.
 static PyMethodDef myextension_methods[] = {{"test", (PyCFunction)test, METH_NOARGS, NULL},
@@ -493,6 +832,8 @@ PyMODINIT_FUNC PyInit__quickjs(void) {
 		return NULL;
 	}
 
+	JS_NewClassID(&js_python_function_class_id);
+
 	JSException = PyErr_NewException("_quickjs.JSException", NULL, NULL);
 	if (JSException == NULL) {
 		return NULL;
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..1cfd9b0
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,701 @@
+# This file is automatically @generated by Poetry 1.7.1 and should not be changed by hand.
+
+[[package]]
+name = "certifi"
+version = "2023.7.22"
+description = "Python package for providing Mozilla's CA Bundle."
+optional = false
+python-versions = ">=3.6"
+files = [
+    {file = "certifi-2023.7.22-py3-none-any.whl", hash = "sha256:92d6037539857d8206b8f6ae472e8b77db8058fec5937a1ef3f54304089edbb9"},
+    {file = "certifi-2023.7.22.tar.gz", hash = "sha256:539cc1d13202e33ca466e88b2807e29f4c13049d6d87031a3c110744495cb082"},
+]
+
+[[package]]
+name = "cffi"
+version = "1.16.0"
+description = "Foreign Function Interface for Python calling C code."
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "cffi-1.16.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:6b3d6606d369fc1da4fd8c357d026317fbb9c9b75d36dc16e90e84c26854b088"},
+    {file = "cffi-1.16.0-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:ac0f5edd2360eea2f1daa9e26a41db02dd4b0451b48f7c318e217ee092a213e9"},
+    {file = "cffi-1.16.0-cp310-cp310-manylinux_2_12_i686.manylinux2010_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:7e61e3e4fa664a8588aa25c883eab612a188c725755afff6289454d6362b9673"},
+    {file = "cffi-1.16.0-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:a72e8961a86d19bdb45851d8f1f08b041ea37d2bd8d4fd19903bc3083d80c896"},
+    {file = "cffi-1.16.0-cp310-cp310-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:5b50bf3f55561dac5438f8e70bfcdfd74543fd60df5fa5f62d94e5867deca684"},
+    {file = "cffi-1.16.0-cp310-cp310-manylinux_2_17_s390x.manylinux2014_s390x.whl", hash = "sha256:7651c50c8c5ef7bdb41108b7b8c5a83013bfaa8a935590c5d74627c047a583c7"},
+    {file = "cffi-1.16.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:e4108df7fe9b707191e55f33efbcb2d81928e10cea45527879a4749cbe472614"},
+    {file = "cffi-1.16.0-cp310-cp310-musllinux_1_1_i686.whl", hash = "sha256:32c68ef735dbe5857c810328cb2481e24722a59a2003018885514d4c09af9743"},
+    {file = "cffi-1.16.0-cp310-cp310-musllinux_1_1_x86_64.whl", hash = "sha256:673739cb539f8cdaa07d92d02efa93c9ccf87e345b9a0b556e3ecc666718468d"},
+    {file = "cffi-1.16.0-cp310-cp310-win32.whl", hash = "sha256:9f90389693731ff1f659e55c7d1640e2ec43ff725cc61b04b2f9c6d8d017df6a"},
+    {file = "cffi-1.16.0-cp310-cp310-win_amd64.whl", hash = "sha256:e6024675e67af929088fda399b2094574609396b1decb609c55fa58b028a32a1"},
+    {file = "cffi-1.16.0-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:b84834d0cf97e7d27dd5b7f3aca7b6e9263c56308ab9dc8aae9784abb774d404"},
+    {file = "cffi-1.16.0-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:1b8ebc27c014c59692bb2664c7d13ce7a6e9a629be20e54e7271fa696ff2b417"},
+    {file = "cffi-1.16.0-cp311-cp311-manylinux_2_12_i686.manylinux2010_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:ee07e47c12890ef248766a6e55bd38ebfb2bb8edd4142d56db91b21ea68b7627"},
+    {file = "cffi-1.16.0-cp311-cp311-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:d8a9d3ebe49f084ad71f9269834ceccbf398253c9fac910c4fd7053ff1386936"},
+    {file = "cffi-1.16.0-cp311-cp311-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:e70f54f1796669ef691ca07d046cd81a29cb4deb1e5f942003f401c0c4a2695d"},
+    {file = "cffi-1.16.0-cp311-cp311-manylinux_2_17_s390x.manylinux2014_s390x.whl", hash = "sha256:5bf44d66cdf9e893637896c7faa22298baebcd18d1ddb6d2626a6e39793a1d56"},
+    {file = "cffi-1.16.0-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:7b78010e7b97fef4bee1e896df8a4bbb6712b7f05b7ef630f9d1da00f6444d2e"},
+    {file = "cffi-1.16.0-cp311-cp311-musllinux_1_1_i686.whl", hash = "sha256:c6a164aa47843fb1b01e941d385aab7215563bb8816d80ff3a363a9f8448a8dc"},
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diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..defcf4b
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,17 @@
+[tool.poetry]
+name = "quickjs"
+version = "0"  # Version in setup.py is used for distributing.
+description = "Python wrapper around https://bellard.org/quickjs/"
+authors = ["Petter Strandmark"]
+
+[tool.poetry.dependencies]
+python = ">=3.8"
+
+[tool.poetry.dev-dependencies]
+yapf = "*"
+setuptools = "*"
+wheel = "*"
+twine = "*"
+
+[build-system]
+requires = ["poetry>=1.0.5"]
diff --git a/quickjs/__init__.py b/quickjs/__init__.py
old mode 100755
new mode 100644
index 663b580..4285999
--- a/quickjs/__init__.py
+++ b/quickjs/__init__.py
@@ -1,7 +1,7 @@
 import concurrent.futures
 import json
 import threading
-from typing import Tuple
+from typing import Tuple, Callable
 
 import _quickjs
 
@@ -61,6 +61,10 @@ def memory(self):
         with self._lock:
             return self._context.memory()
 
+    def add_callable(self, global_name: str, callable: Callable) -> None:
+        with self._lock:
+            self._context.add_callable(global_name, callable)
+
     def gc(self):
         """Manually run the garbage collection.
 
@@ -69,6 +73,15 @@ def gc(self):
         with self._lock:
             self._context.gc()
 
+    def execute_pending_job(self) -> bool:
+        with self._lock:
+            return self._context.execute_pending_job()
+
+    @property
+    def globalThis(self) -> Object:
+        with self._lock:
+            return self._context.globalThis
+
     def _compile(self, name: str, code: str) -> Tuple[Context, Object]:
         context = Context()
         context.eval(code)
@@ -81,7 +94,7 @@ def convert_arg(arg):
                 return arg
             else:
                 # More complex objects are passed through JSON.
-                return self._context.eval("(" + json.dumps(arg) + ")")
+                return self._context.parse_json(json.dumps(arg))
 
         try:
             result = self._f(*[convert_arg(a) for a in args])
diff --git a/setup.py b/setup.py
old mode 100755
new mode 100644
index 45321c4..55152b3
--- a/setup.py
+++ b/setup.py
@@ -1,10 +1,11 @@
 import glob
 import sys
+from typing import List
 
 from setuptools import setup, Extension
 
-CONFIG_VERSION = '2019-08-10'
-extra_link_args = []
+CONFIG_VERSION = open("upstream-quickjs/VERSION").read().strip()
+extra_link_args: List[str] = []
 
 if sys.platform == "win32":
     # To build for Windows:
@@ -15,40 +16,65 @@
     #    system PATH when compiling.
     # 3. The code below will moneky-patch distutils to work.
     import distutils.cygwinccompiler
-    distutils.cygwinccompiler.get_msvcr = lambda: []
-    # Escaping works differently.
-    CONFIG_VERSION = f'\\"{CONFIG_VERSION}\\"'
+    distutils.cygwinccompiler.get_msvcr = lambda: [] 
     # Make sure that pthreads is linked statically, otherwise we run into problems
     # on computers where it is not installed.
-    extra_link_args = ["-Wl,-Bstatic", "-lpthread"]
-else:
-    CONFIG_VERSION = f'"{CONFIG_VERSION}"'
+    extra_link_args = ["-static"]
 
 
 def get_c_sources(include_headers=False):
-    sources = ['module.c'] + glob.glob("third-party/*.c")
+    sources = [
+        "module.c",
+        "upstream-quickjs/cutils.c",
+        "upstream-quickjs/libbf.c",
+        "upstream-quickjs/libregexp.c",
+        "upstream-quickjs/libunicode.c",
+        "upstream-quickjs/quickjs.c",
+    ]
     if include_headers:
-        sources += glob.glob("third-party/*.h")
+        sources += [
+            "upstream-quickjs/cutils.h",
+            "upstream-quickjs/libbf.h",
+            "upstream-quickjs/libregexp-opcode.h",
+            "upstream-quickjs/libregexp.h",
+            "upstream-quickjs/libunicode-table.h",
+            "upstream-quickjs/libunicode.h",
+            "upstream-quickjs/list.h",
+            "upstream-quickjs/quickjs-atom.h",
+            "upstream-quickjs/quickjs-opcode.h",
+            "upstream-quickjs/quickjs.h",
+            "upstream-quickjs/VERSION",
+        ]
     return sources
 
 
 _quickjs = Extension(
     '_quickjs',
-    define_macros=[('CONFIG_VERSION', CONFIG_VERSION)],
+    define_macros=[('CONFIG_VERSION', f'"{CONFIG_VERSION}"'), ('CONFIG_BIGNUM', None)],
     # HACK.
     # See https://github.com/pypa/packaging-problems/issues/84.
     sources=get_c_sources(include_headers=("sdist" in sys.argv)),
+    extra_compile_args=["-Werror=incompatible-pointer-types"],
     extra_link_args=extra_link_args)
 
 long_description = """
-Thin Python wrapper around https://bellard.org/quickjs/ .
+Python wrapper around https://bellard.org/quickjs/ .
+
+Translates types like `str`, `float`, `bool`, `list`, `dict` and combinations
+thereof to and from Javascript.
+
+QuickJS is currently thread-hostile, so this wrapper makes sure that all calls
+to the same JS runtime comes from the same thead.
 """
 
 setup(author="Petter Strandmark",
       author_email="petter.strandmark@gmail.com",
+      maintainer="Quentin Wenger",
+      maintainer_email="matpi@protonmail.ch",
       name='quickjs',
       url='https://github.com/PetterS/quickjs',
-      version='1.6.0',
+      version='1.19.4',
+      license="MIT",
       description='Wrapping the quickjs C library.',
       long_description=long_description,
       packages=["quickjs"],
diff --git a/test_quickjs.py b/test_quickjs.py
index fa8ea75..1f6dec7 100644
--- a/test_quickjs.py
+++ b/test_quickjs.py
@@ -1,4 +1,5 @@
 import concurrent.futures
+import gc
 import json
 import unittest
 
@@ -55,15 +56,22 @@ def test_get(self):
         self.assertEqual(self.context.get("y"), "foo")
         self.assertEqual(self.context.get("z"), None)
 
+    def test_set(self):
+        self.context.eval("x = 'overriden'")
+        self.context.set("x", 42)
+        self.context.set("y", "foo")
+        self.assertTrue(self.context.eval("x == 42"))
+        self.assertTrue(self.context.eval("y == 'foo'"))
+
     def test_module(self):
-        self.context.module("""   
+        self.context.module("""
             export function test() {
                 return 42;
             }
         """)
 
     def test_error(self):
-        with self.assertRaisesRegex(quickjs.JSException, "ReferenceError: missing is not defined"):
+        with self.assertRaisesRegex(quickjs.JSException, "ReferenceError: 'missing' is not defined"):
             self.context.eval("missing + missing")
 
     def test_lifetime(self):
@@ -81,6 +89,25 @@ def get_f():
         # The context has left the scope after f. f needs to keep the context alive for the
         # its lifetime. Otherwise, we will get problems.
 
+    def test_backtrace(self):
+        try:
+            self.context.eval("""
+                function funcA(x) {
+                    x.a.b = 1;
+                }
+                function funcB(x) {
+                    funcA(x);
+                }
+                funcB({});
+            """)
+        except Exception as e:
+            msg = str(e)
+        else:
+            self.fail("Expected exception.")
+
+        self.assertIn("at funcA (<input>:3)\n", msg)
+        self.assertIn("at funcB (<input>:6)\n", msg)
+
     def test_memory_limit(self):
         code = """
             (function() {
@@ -117,6 +144,165 @@ def test_time_limit(self):
     def test_memory_usage(self):
         self.assertIn("memory_used_size", self.context.memory().keys())
 
+    def test_json_simple(self):
+        self.assertEqual(self.context.parse_json("42"), 42)
+
+    def test_json_error(self):
+        with self.assertRaisesRegex(quickjs.JSException, "unexpected token"):
+            self.context.parse_json("a b c")
+
+    def test_execute_pending_job(self):
+        self.context.eval("obj = {}")
+        self.assertEqual(self.context.execute_pending_job(), False)
+        self.context.eval("Promise.resolve().then(() => {obj.x = 1;})")
+        self.assertEqual(self.context.execute_pending_job(), True)
+        self.assertEqual(self.context.eval("obj.x"), 1)
+        self.assertEqual(self.context.execute_pending_job(), False)
+
+    def test_global(self):
+        self.context.set("f", self.context.globalThis)
+        self.assertTrue(isinstance(self.context.globalThis, quickjs.Object))
+        self.assertTrue(self.context.eval("f === globalThis"))
+        with self.assertRaises(AttributeError):
+            self.context.globalThis = 1
+
+
+class CallIntoPython(unittest.TestCase):
+    def setUp(self):
+        self.context = quickjs.Context()
+
+    def test_make_function(self):
+        self.context.add_callable("f", lambda x: x + 2)
+        self.assertEqual(self.context.eval("f(40)"), 42)
+        self.assertEqual(self.context.eval("f.name"), "f")
+
+    def test_make_two_functions(self):
+        for i in range(10):
+            self.context.add_callable("f", lambda x: i + x + 2)
+            self.context.add_callable("g", lambda x: i + x + 40)
+            f = self.context.get("f")
+            g = self.context.get("g")
+            self.assertEqual(f(40) - i, 42)
+            self.assertEqual(g(2) - i, 42)
+            self.assertEqual(self.context.eval("((f, a) => f(a))")(f, 40) - i, 42)
+
+    def test_make_function_call_from_js(self):
+        self.context.add_callable("f", lambda x: x + 2)
+        g = self.context.eval("""(
+            function() {
+                return f(20) + 20;
+            }
+        )""")
+        self.assertEqual(g(), 42)
+
+    def test_python_function_raises(self):
+        def error(a):
+            raise ValueError("A")
+
+        self.context.add_callable("error", error)
+        with self.assertRaisesRegex(quickjs.JSException, "Python call failed"):
+            self.context.eval("error(0)")
+
+    def test_python_function_not_callable(self):
+        with self.assertRaisesRegex(TypeError, "Argument must be callable."):
+            self.context.add_callable("not_callable", 1)
+
+    def test_python_function_no_slots(self):
+        for i in range(2**16):
+            self.context.add_callable(f"a{i}", lambda i=i: i + 1)
+        self.assertEqual(self.context.eval("a0()"), 1)
+        self.assertEqual(self.context.eval(f"a{2**16 - 1}()"), 2**16)
+
+    def test_function_after_context_del(self):
+        def make():
+            ctx = quickjs.Context()
+            ctx.add_callable("f", lambda: 1)
+            f = ctx.get("f")
+            del ctx
+            return f
+        gc.collect()
+        f = make()
+        self.assertEqual(f(), 1)
+
+    def test_python_function_unwritable(self):
+        self.context.eval("""
+            Object.defineProperty(globalThis, "obj", {
+                value: "test",
+                writable: false,
+            });
+        """)
+        with self.assertRaisesRegex(TypeError, "Failed adding the callable."):
+            self.context.add_callable("obj", lambda: None)
+
+    def test_python_function_is_function(self):
+        self.context.add_callable("f", lambda: None)
+        self.assertTrue(self.context.eval("f instanceof Function"))
+        self.assertTrue(self.context.eval("typeof f === 'function'"))
+
+    def test_make_function_two_args(self):
+        def concat(a, b):
+            return a + b
+
+        self.context.add_callable("concat", concat)
+        result = self.context.eval("concat(40, 2)")
+        self.assertEqual(result, 42)
+
+        concat = self.context.get("concat")
+        result = self.context.eval("((f, a, b) => 22 + f(a, b))")(concat, 10, 10)
+        self.assertEqual(result, 42)
+
+    def test_make_function_two_string_args(self):
+        """Without the JS_DupValue in js_c_function, this test crashes."""
+        def concat(a, b):
+            return a + "-" + b
+
+        self.context.add_callable("concat", concat)
+        concat = self.context.get("concat")
+        result = concat("aaa", "bbb")
+        self.assertEqual(result, "aaa-bbb")
+
+    def test_can_eval_in_same_context(self):
+        self.context.add_callable("f", lambda: 40 + self.context.eval("1 + 1"))
+        self.assertEqual(self.context.eval("f()"), 42)
+
+    def test_can_call_in_same_context(self):
+        inner = self.context.eval("(function() { return 42; })")
+        self.context.add_callable("f", lambda: inner())
+        self.assertEqual(self.context.eval("f()"), 42)
+
+    def test_delete_function_from_inside_js(self):
+        self.context.add_callable("f", lambda: None)
+        # Segfaults if js_python_function_finalizer does not handle threading
+        # states carefully.
+        self.context.eval("delete f")
+        self.assertIsNone(self.context.get("f"))
+
+    def test_invalid_argument(self):
+        self.context.add_callable("p", lambda: 42)
+        self.assertEqual(self.context.eval("p()"), 42)
+        with self.assertRaisesRegex(quickjs.JSException, "Python call failed"):
+            self.context.eval("p(1)")
+        with self.assertRaisesRegex(quickjs.JSException, "Python call failed"):
+            self.context.eval("p({})")
+
+    def test_time_limit_disallowed(self):
+        self.context.add_callable("f", lambda x: x + 2)
+        self.context.set_time_limit(1000)
+        with self.assertRaises(quickjs.JSException):
+            self.context.eval("f(40)")
+
+    def test_conversion_failure_does_not_raise_system_error(self):
+        # https://github.com/PetterS/quickjs/issues/38
+
+        def test_list():
+            return [1, 2, 3]
+
+        self.context.add_callable("test_list", test_list)
+        with self.assertRaises(quickjs.JSException):
+            # With incorrect error handling, this (safely) made Python raise a SystemError
+            # instead of a JS exception.
+            self.context.eval("test_list()")
+
 
 class Object(unittest.TestCase):
     def setUp(self):
@@ -328,9 +514,50 @@ def test_deep_recursion(self):
         f.set_max_stack_size(2000 * limit)
         self.assertEqual(f(limit), limit)
 
+    def test_add_callable(self):
+        f = quickjs.Function(
+            "f", """
+            function f() {
+                return pfunc();
+            }
+        """)
+        f.add_callable("pfunc", lambda: 42)
+
+        self.assertEqual(f(), 42)
+
+    def test_execute_pending_job(self):
+        f = quickjs.Function(
+            "f", """
+            obj = {x: 0, y: 0};
+            async function a() {
+                obj.x = await 1;
+            }
+            a();
+            Promise.resolve().then(() => {obj.y = 1});
+            function f() {
+                return obj.x + obj.y;
+            }
+        """)
+        self.assertEqual(f(), 0)
+        self.assertEqual(f.execute_pending_job(), True)
+        self.assertEqual(f(), 1)
+        self.assertEqual(f.execute_pending_job(), True)
+        self.assertEqual(f(), 2)
+        self.assertEqual(f.execute_pending_job(), False)
+
+    def test_global(self):
+        f = quickjs.Function(
+            "f", """
+            function f() {
+            }
+        """)
+        self.assertTrue(isinstance(f.globalThis, quickjs.Object))
+        with self.assertRaises(AttributeError):
+            f.globalThis = 1
+
 
-class Strings(unittest.TestCase):
-    def test_unicode(self):
+class JavascriptFeatures(unittest.TestCase):
+    def test_unicode_strings(self):
         identity = quickjs.Function(
             "identity", """
             function identity(x) {
@@ -342,6 +569,47 @@ def test_unicode(self):
             self.assertEqual(identity(x), x)
             self.assertEqual(context.eval('(function(){ return "' + x + '";})()'), x)
 
+    def test_es2020_optional_chaining(self):
+        f = quickjs.Function(
+            "f", """
+            function f(x) {
+                return x?.one?.two;
+            }
+        """)
+        self.assertIsNone(f({}))
+        self.assertIsNone(f({"one": 12}))
+        self.assertEqual(f({"one": {"two": 42}}), 42)
+
+    def test_es2020_null_coalescing(self):
+        f = quickjs.Function(
+            "f", """
+            function f(x) {
+                return x ?? 42;
+            }
+        """)
+        self.assertEqual(f(""), "")
+        self.assertEqual(f(0), 0)
+        self.assertEqual(f(11), 11)
+        self.assertEqual(f(None), 42)
+
+    def test_symbol_conversion(self):
+        context = quickjs.Context()
+        context.eval("a = Symbol();")
+        context.set("b", context.eval("a"))
+        self.assertTrue(context.eval("a === b"))
+
+    def test_large_python_integers_to_quickjs(self):
+        context = quickjs.Context()
+        # Without a careful implementation, this made Python raise a SystemError/OverflowError.
+        context.set("v", 10**25)
+        # There is precision loss occurring in JS due to
+        # the floating point implementation of numbers.
+        self.assertTrue(context.eval("v == 1e25"))
+
+    def test_bigint(self):
+        context = quickjs.Context()
+        self.assertEqual(context.eval(f"BigInt('{10**100}')"), 10**100)
+        self.assertEqual(context.eval(f"BigInt('{-10**100}')"), -10**100)
 
 class Threads(unittest.TestCase):
     def setUp(self):
@@ -391,3 +659,17 @@ def test_concurrent_own_executor(self):
         expected = sum(data)
         for future in concurrent.futures.as_completed(futures):
             self.assertEqual(future.result(), expected)
+
+
+class QJS(object):
+    def __init__(self):
+        self.interp = quickjs.Context()
+        self.interp.eval('var foo = "bar";')
+
+
+class QuickJSContextInClass(unittest.TestCase):
+    def test_github_issue_7(self):
+        # This used to give stack overflow internal error, due to how QuickJS calculates stack
+        # frames. Passes with the 2021-03-27 release.
+        qjs = QJS()
+        self.assertEqual(qjs.interp.eval('2+2'), 4)
diff --git a/third-party/cutils.c b/third-party/cutils.c
deleted file mode 100644
index 869b79c..0000000
--- a/third-party/cutils.c
+++ /dev/null
@@ -1,621 +0,0 @@
-/*
- * C utilities
- * 
- * Copyright (c) 2017 Fabrice Bellard
- * Copyright (c) 2018 Charlie Gordon
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-
-#include "cutils.h"
-
-void pstrcpy(char *buf, int buf_size, const char *str)
-{
-    int c;
-    char *q = buf;
-
-    if (buf_size <= 0)
-        return;
-
-    for(;;) {
-        c = *str++;
-        if (c == 0 || q >= buf + buf_size - 1)
-            break;
-        *q++ = c;
-    }
-    *q = '\0';
-}
-
-/* strcat and truncate. */
-char *pstrcat(char *buf, int buf_size, const char *s)
-{
-    int len;
-    len = strlen(buf);
-    if (len < buf_size)
-        pstrcpy(buf + len, buf_size - len, s);
-    return buf;
-}
-
-int strstart(const char *str, const char *val, const char **ptr)
-{
-    const char *p, *q;
-    p = str;
-    q = val;
-    while (*q != '\0') {
-        if (*p != *q)
-            return 0;
-        p++;
-        q++;
-    }
-    if (ptr)
-        *ptr = p;
-    return 1;
-}
-
-int has_suffix(const char *str, const char *suffix)
-{
-    size_t len = strlen(str);
-    size_t slen = strlen(suffix);
-    return (len >= slen && !memcmp(str + len - slen, suffix, slen));
-}
-
-/* Dynamic buffer package */
-
-static void *dbuf_default_realloc(void *opaque, void *ptr, size_t size)
-{
-    return realloc(ptr, size);
-}
-
-void dbuf_init2(DynBuf *s, void *opaque, DynBufReallocFunc *realloc_func)
-{
-    memset(s, 0, sizeof(*s));
-    if (!realloc_func)
-        realloc_func = dbuf_default_realloc;
-    s->opaque = opaque;
-    s->realloc_func = realloc_func;
-}
-
-void dbuf_init(DynBuf *s)
-{
-    dbuf_init2(s, NULL, NULL);
-}
-
-/* return < 0 if error */
-int dbuf_realloc(DynBuf *s, size_t new_size)
-{
-    size_t size;
-    uint8_t *new_buf;
-    if (new_size > s->allocated_size) {
-        if (s->error)
-            return -1;
-        size = s->allocated_size * 3 / 2;
-        if (size > new_size)
-            new_size = size;
-        new_buf = s->realloc_func(s->opaque, s->buf, new_size);
-        if (!new_buf) {
-            s->error = TRUE;
-            return -1;
-        }
-        s->buf = new_buf;
-        s->allocated_size = new_size;
-    }
-    return 0;
-}
-
-int dbuf_write(DynBuf *s, size_t offset, const uint8_t *data, size_t len)
-{
-    size_t end;
-    end = offset + len;
-    if (dbuf_realloc(s, end))
-        return -1;
-    memcpy(s->buf + offset, data, len);
-    if (end > s->size)
-        s->size = end;
-    return 0;
-}
-
-int dbuf_put(DynBuf *s, const uint8_t *data, size_t len)
-{
-    if (unlikely((s->size + len) > s->allocated_size)) {
-        if (dbuf_realloc(s, s->size + len))
-            return -1;
-    }
-    memcpy(s->buf + s->size, data, len);
-    s->size += len;
-    return 0;
-}
-
-int dbuf_put_self(DynBuf *s, size_t offset, size_t len)
-{
-    if (unlikely((s->size + len) > s->allocated_size)) {
-        if (dbuf_realloc(s, s->size + len))
-            return -1;
-    }
-    memcpy(s->buf + s->size, s->buf + offset, len);
-    s->size += len;
-    return 0;
-}
-
-int dbuf_putc(DynBuf *s, uint8_t c)
-{
-    return dbuf_put(s, &c, 1);
-}
-
-int dbuf_putstr(DynBuf *s, const char *str)
-{
-    return dbuf_put(s, (const uint8_t *)str, strlen(str));
-}
-
-int __attribute__((format(printf, 2, 3))) dbuf_printf(DynBuf *s,
-                                                      const char *fmt, ...)
-{
-    va_list ap;
-    char buf[128];
-    int len;
-    
-    va_start(ap, fmt);
-    len = vsnprintf(buf, sizeof(buf), fmt, ap);
-    va_end(ap);
-    if (len < sizeof(buf)) {
-        /* fast case */
-        return dbuf_put(s, (uint8_t *)buf, len);
-    } else {
-        if (dbuf_realloc(s, s->size + len + 1))
-            return -1;
-        va_start(ap, fmt);
-        vsnprintf((char *)(s->buf + s->size), s->allocated_size - s->size,
-                  fmt, ap);
-        va_end(ap);
-        s->size += len;
-    }
-    return 0;
-}
-
-void dbuf_free(DynBuf *s)
-{
-    /* we test s->buf as a fail safe to avoid crashing if dbuf_free()
-       is called twice */
-    if (s->buf) {
-        s->realloc_func(s->opaque, s->buf, 0);
-    }
-    memset(s, 0, sizeof(*s));
-}
-
-/* Note: at most 31 bits are encoded. At most UTF8_CHAR_LEN_MAX bytes
-   are output. */
-int unicode_to_utf8(uint8_t *buf, unsigned int c)
-{
-    uint8_t *q = buf;
-
-    if (c < 0x80) {
-        *q++ = c;
-    } else {
-        if (c < 0x800) {
-            *q++ = (c >> 6) | 0xc0;
-        } else {
-            if (c < 0x10000) {
-                *q++ = (c >> 12) | 0xe0;
-            } else {
-                if (c < 0x00200000) {
-                    *q++ = (c >> 18) | 0xf0;
-                } else {
-                    if (c < 0x04000000) {
-                        *q++ = (c >> 24) | 0xf8;
-                    } else if (c < 0x80000000) {
-                        *q++ = (c >> 30) | 0xfc;
-                        *q++ = ((c >> 24) & 0x3f) | 0x80;
-                    } else {
-                        return 0;
-                    }
-                    *q++ = ((c >> 18) & 0x3f) | 0x80;
-                }
-                *q++ = ((c >> 12) & 0x3f) | 0x80;
-            }
-            *q++ = ((c >> 6) & 0x3f) | 0x80;
-        }
-        *q++ = (c & 0x3f) | 0x80;
-    }
-    return q - buf;
-}
-
-static const unsigned int utf8_min_code[5] = {
-    0x80, 0x800, 0x10000, 0x00200000, 0x04000000,
-};
-
-static const unsigned char utf8_first_code_mask[5] = {
-    0x1f, 0xf, 0x7, 0x3, 0x1,
-};
-
-/* return -1 if error. *pp is not updated in this case. max_len must
-   be >= 1. The maximum length for a UTF8 byte sequence is 6 bytes. */
-int unicode_from_utf8(const uint8_t *p, int max_len, const uint8_t **pp)
-{
-    int l, c, b, i;
-
-    c = *p++;
-    if (c < 0x80) {
-        *pp = p;
-        return c;
-    }
-    switch(c) {
-    case 0xc0 ... 0xdf:
-        l = 1;
-        break;
-    case 0xe0 ... 0xef:
-        l = 2;
-        break;
-    case 0xf0 ... 0xf7:
-        l = 3;
-        break;
-    case 0xf8 ... 0xfb:
-        l = 4;
-        break;
-    case 0xfc ... 0xfd:
-        l = 5;
-        break;
-    default:
-        return -1;
-    }
-    /* check that we have enough characters */
-    if (l > (max_len - 1))
-        return -1;
-    c &= utf8_first_code_mask[l - 1];
-    for(i = 0; i < l; i++) {
-        b = *p++;
-        if (b < 0x80 || b >= 0xc0)
-            return -1;
-        c = (c << 6) | (b & 0x3f);
-    }
-    if (c < utf8_min_code[l - 1])
-        return -1;
-    *pp = p;
-    return c;
-}
-
-#if 0
-
-#if defined(EMSCRIPTEN) || defined(__ANDROID__)
-
-static void *rqsort_arg;
-static int (*rqsort_cmp)(const void *, const void *, void *);
-
-static int rqsort_cmp2(const void *p1, const void *p2)
-{
-    return rqsort_cmp(p1, p2, rqsort_arg);
-}
-
-/* not reentrant, but not needed with emscripten */
-void rqsort(void *base, size_t nmemb, size_t size,
-            int (*cmp)(const void *, const void *, void *),
-            void *arg)
-{
-    rqsort_arg = arg;
-    rqsort_cmp = cmp;
-    qsort(base, nmemb, size, rqsort_cmp2);
-}
-
-#endif
-
-#else
-
-typedef void (*exchange_f)(void *a, void *b, size_t size);
-typedef int (*cmp_f)(const void *, const void *, void *opaque);
-
-static void exchange_bytes(void *a, void *b, size_t size) {
-    uint8_t *ap = (uint8_t *)a;
-    uint8_t *bp = (uint8_t *)b;
-
-    while (size-- != 0) {
-        uint8_t t = *ap;
-        *ap++ = *bp;
-        *bp++ = t;
-    }
-}
-
-static void exchange_one_byte(void *a, void *b, size_t size) {
-    uint8_t *ap = (uint8_t *)a;
-    uint8_t *bp = (uint8_t *)b;
-    uint8_t t = *ap;
-    *ap = *bp;
-    *bp = t;
-}
-
-static void exchange_int16s(void *a, void *b, size_t size) {
-    uint16_t *ap = (uint16_t *)a;
-    uint16_t *bp = (uint16_t *)b;
-
-    for (size /= sizeof(uint16_t); size-- != 0;) {
-        uint16_t t = *ap;
-        *ap++ = *bp;
-        *bp++ = t;
-    }
-}
-
-static void exchange_one_int16(void *a, void *b, size_t size) {
-    uint16_t *ap = (uint16_t *)a;
-    uint16_t *bp = (uint16_t *)b;
-    uint16_t t = *ap;
-    *ap = *bp;
-    *bp = t;
-}
-
-static void exchange_int32s(void *a, void *b, size_t size) {
-    uint32_t *ap = (uint32_t *)a;
-    uint32_t *bp = (uint32_t *)b;
-
-    for (size /= sizeof(uint32_t); size-- != 0;) {
-        uint32_t t = *ap;
-        *ap++ = *bp;
-        *bp++ = t;
-    }
-}
-
-static void exchange_one_int32(void *a, void *b, size_t size) {
-    uint32_t *ap = (uint32_t *)a;
-    uint32_t *bp = (uint32_t *)b;
-    uint32_t t = *ap;
-    *ap = *bp;
-    *bp = t;
-}
-
-static void exchange_int64s(void *a, void *b, size_t size) {
-    uint64_t *ap = (uint64_t *)a;
-    uint64_t *bp = (uint64_t *)b;
-
-    for (size /= sizeof(uint64_t); size-- != 0;) {
-        uint64_t t = *ap;
-        *ap++ = *bp;
-        *bp++ = t;
-    }
-}
-
-static void exchange_one_int64(void *a, void *b, size_t size) {
-    uint64_t *ap = (uint64_t *)a;
-    uint64_t *bp = (uint64_t *)b;
-    uint64_t t = *ap;
-    *ap = *bp;
-    *bp = t;
-}
-
-static void exchange_int128s(void *a, void *b, size_t size) {
-    uint64_t *ap = (uint64_t *)a;
-    uint64_t *bp = (uint64_t *)b;
-
-    for (size /= sizeof(uint64_t) * 2; size-- != 0; ap += 2, bp += 2) {
-        uint64_t t = ap[0];
-        uint64_t u = ap[1];
-        ap[0] = bp[0];
-        ap[1] = bp[1];
-        bp[0] = t;
-        bp[1] = u;
-    }
-}
-
-static void exchange_one_int128(void *a, void *b, size_t size) {
-    uint64_t *ap = (uint64_t *)a;
-    uint64_t *bp = (uint64_t *)b;
-    uint64_t t = ap[0];
-    uint64_t u = ap[1];
-    ap[0] = bp[0];
-    ap[1] = bp[1];
-    bp[0] = t;
-    bp[1] = u;
-}
-
-static inline exchange_f exchange_func(const void *base, size_t size) {
-    switch (((uintptr_t)base | (uintptr_t)size) & 15) {
-    case 0:
-        if (size == sizeof(uint64_t) * 2)
-            return exchange_one_int128;
-        else
-            return exchange_int128s;
-    case 8:
-        if (size == sizeof(uint64_t))
-            return exchange_one_int64;
-        else
-            return exchange_int64s;
-    case 4:
-    case 12:
-        if (size == sizeof(uint32_t))
-            return exchange_one_int32;
-        else
-            return exchange_int32s;
-    case 2:
-    case 6:
-    case 10:
-    case 14:
-        if (size == sizeof(uint16_t))
-            return exchange_one_int16;
-        else
-            return exchange_int16s;
-    default:
-        if (size == 1)
-            return exchange_one_byte;
-        else
-            return exchange_bytes;
-    }
-}
-
-static void heapsortx(void *base, size_t nmemb, size_t size, cmp_f cmp, void *opaque)
-{
-    uint8_t *basep = (uint8_t *)base;
-    size_t i, n, c, r;
-    exchange_f swap = exchange_func(base, size);
-
-    if (nmemb > 1) {
-        i = (nmemb / 2) * size;
-        n = nmemb * size;
-
-        while (i > 0) {
-            i -= size;
-            for (r = i; (c = r * 2 + size) < n; r = c) {
-                if (c < n - size && cmp(basep + c, basep + c + size, opaque) <= 0)
-                    c += size;
-                if (cmp(basep + r, basep + c, opaque) > 0)
-                    break;
-                swap(basep + r, basep + c, size);
-            }
-        }
-        for (i = n - size; i > 0; i -= size) {
-            swap(basep, basep + i, size);
-
-            for (r = 0; (c = r * 2 + size) < i; r = c) {
-                if (c < i - size && cmp(basep + c, basep + c + size, opaque) <= 0)
-                    c += size;
-                if (cmp(basep + r, basep + c, opaque) > 0)
-                    break;
-                swap(basep + r, basep + c, size);
-            }
-        }
-    }
-}
-
-static inline void *med3(void *a, void *b, void *c, cmp_f cmp, void *opaque)
-{
-    return cmp(a, b, opaque) < 0 ?
-        (cmp(b, c, opaque) < 0 ? b : (cmp(a, c, opaque) < 0 ? c : a )) :
-        (cmp(b, c, opaque) > 0 ? b : (cmp(a, c, opaque) < 0 ? a : c ));
-}
-
-/* pointer based version with local stack and insertion sort threshhold */
-void rqsort(void *base, size_t nmemb, size_t size, cmp_f cmp, void *opaque)
-{
-    struct { uint8_t *base; size_t count; int depth; } stack[50], *sp = stack;
-    uint8_t *ptr, *pi, *pj, *plt, *pgt, *top, *m;
-    size_t m4, i, lt, gt, span, span2;
-    int c, depth;
-    exchange_f swap = exchange_func(base, size);
-    exchange_f swap_block = exchange_func(base, size | 128);
-
-    if (nmemb < 2 || size <= 0)
-        return;
-
-    sp->base = (uint8_t *)base;
-    sp->count = nmemb;
-    sp->depth = 0;
-    sp++;
-
-    while (sp > stack) {
-        sp--;
-        ptr = sp->base;
-        nmemb = sp->count;
-        depth = sp->depth;
-
-        while (nmemb > 6) {
-            if (++depth > 50) {
-                /* depth check to ensure worst case logarithmic time */
-                heapsortx(ptr, nmemb, size, cmp, opaque);
-                nmemb = 0;
-                break;
-            }
-            /* select median of 3 from 1/4, 1/2, 3/4 positions */
-            /* should use median of 5 or 9? */
-            m4 = (nmemb >> 2) * size;
-            m = med3(ptr + m4, ptr + 2 * m4, ptr + 3 * m4, cmp, opaque);
-            swap(ptr, m, size);  /* move the pivot to the start or the array */
-            i = lt = 1;
-            pi = plt = ptr + size;
-            gt = nmemb;
-            pj = pgt = top = ptr + nmemb * size;
-            for (;;) {
-                while (pi < pj && (c = cmp(ptr, pi, opaque)) >= 0) {
-                    if (c == 0) {
-                        swap(plt, pi, size);
-                        lt++;
-                        plt += size;
-                    }
-                    i++;
-                    pi += size;
-                }
-                while (pi < (pj -= size) && (c = cmp(ptr, pj, opaque)) <= 0) {
-                    if (c == 0) {
-                        gt--;
-                        pgt -= size;
-                        swap(pgt, pj, size);
-                    }
-                }
-                if (pi >= pj)
-                    break;
-                swap(pi, pj, size);
-                i++;
-                pi += size;
-            }
-            /* array has 4 parts:
-             * from 0 to lt excluded: elements identical to pivot
-             * from lt to pi excluded: elements smaller than pivot
-             * from pi to gt excluded: elements greater than pivot
-             * from gt to n excluded: elements identical to pivot
-             */
-            /* move elements identical to pivot in the middle of the array: */
-            /* swap values in ranges [0..lt[ and [i-lt..i[
-               swapping the smallest span between lt and i-lt is sufficient
-             */
-            span = plt - ptr;
-            span2 = pi - plt;
-            plt = pi - span;
-            lt = i - lt;
-            if (span > span2)
-                span = span2;
-            swap_block(ptr, pi - span, span);
-            /* swap values in ranges [gt..top[ and [i..top-(top-gt)[
-               swapping the smallest span between top-gt and gt-i is sufficient
-             */
-            span = top - pgt;
-            span2 = pgt - pi;
-            pgt = top - span2;
-            gt = nmemb - (gt - i);
-            if (span > span2)
-                span = span2;
-            swap_block(pi, top - span, span);
-
-            /* now array has 3 parts:
-             * from 0 to lt excluded: elements smaller than pivot
-             * from lt to gt excluded: elements identical to pivot
-             * from gt to n excluded: elements greater than pivot
-             */
-            /* stack the larger segment and keep processing the smaller one
-               to minimize stack use for pathological distributions */
-            if (lt > nmemb - gt) {
-                sp->base = ptr;
-                sp->count = lt;
-                sp->depth = depth;
-                sp++;
-                ptr = pgt;
-                nmemb -= gt;
-            } else {
-                sp->base = pgt;
-                sp->count = nmemb - gt;
-                sp->depth = depth;
-                sp++;
-                nmemb = lt;
-            }
-        }
-        /* Use insertion sort for small fragments */
-        for (pi = ptr + size, top = ptr + nmemb * size; pi < top; pi += size) {
-            for (pj = pi; pj > ptr && cmp(pj - size, pj, opaque) > 0; pj -= size)
-                swap(pj, pj - size, size);
-        }
-    }
-}
-
-#endif
diff --git a/third-party/cutils.h b/third-party/cutils.h
deleted file mode 100644
index fdbf44a..0000000
--- a/third-party/cutils.h
+++ /dev/null
@@ -1,292 +0,0 @@
-/*
- * C utilities
- * 
- * Copyright (c) 2017 Fabrice Bellard
- * Copyright (c) 2018 Charlie Gordon
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#ifndef CUTILS_H
-#define CUTILS_H
-
-#include <stdlib.h>
-#include <inttypes.h>
-
-/* set if CPU is big endian */
-#undef WORDS_BIGENDIAN
-
-#define likely(x)       __builtin_expect(!!(x), 1)
-#define unlikely(x)     __builtin_expect(!!(x), 0)
-#define force_inline inline __attribute__((always_inline))
-#define no_inline __attribute__((noinline))
-
-#define xglue(x, y) x ## y
-#define glue(x, y) xglue(x, y)
-#define stringify(s)    tostring(s)
-#define tostring(s)     #s
-
-#ifndef offsetof
-#define offsetof(type, field) ((size_t) &((type *)0)->field)
-#endif
-#ifndef countof
-#define countof(x) (sizeof(x) / sizeof((x)[0]))
-#endif
-
-typedef int BOOL;
-
-#ifndef FALSE
-enum {
-    FALSE = 0,
-    TRUE = 1,
-};
-#endif
-
-void pstrcpy(char *buf, int buf_size, const char *str);
-char *pstrcat(char *buf, int buf_size, const char *s);
-int strstart(const char *str, const char *val, const char **ptr);
-int has_suffix(const char *str, const char *suffix);
-
-static inline int max_int(int a, int b)
-{
-    if (a > b)
-        return a;
-    else
-        return b;
-}
-
-static inline int min_int(int a, int b)
-{
-    if (a < b)
-        return a;
-    else
-        return b;
-}
-
-static inline uint32_t max_uint32(uint32_t a, uint32_t b)
-{
-    if (a > b)
-        return a;
-    else
-        return b;
-}
-
-static inline uint32_t min_uint32(uint32_t a, uint32_t b)
-{
-    if (a < b)
-        return a;
-    else
-        return b;
-}
-
-static inline int64_t max_int64(int64_t a, int64_t b)
-{
-    if (a > b)
-        return a;
-    else
-        return b;
-}
-
-static inline int64_t min_int64(int64_t a, int64_t b)
-{
-    if (a < b)
-        return a;
-    else
-        return b;
-}
-
-/* WARNING: undefined if a = 0 */
-static inline int clz32(unsigned int a)
-{
-    return __builtin_clz(a);
-}
-
-/* WARNING: undefined if a = 0 */
-static inline int clz64(uint64_t a)
-{
-    return __builtin_clzll(a);
-}
-
-/* WARNING: undefined if a = 0 */
-static inline int ctz32(unsigned int a)
-{
-    return __builtin_ctz(a);
-}
-
-/* WARNING: undefined if a = 0 */
-static inline int ctz64(uint64_t a)
-{
-    return __builtin_ctzll(a);
-}
-
-struct __attribute__((packed)) packed_u64 {
-    uint64_t v;
-};
-
-struct __attribute__((packed)) packed_u32 {
-    uint32_t v;
-};
-
-struct __attribute__((packed)) packed_u16 {
-    uint16_t v;
-};
-
-static inline uint64_t get_u64(const uint8_t *tab)
-{
-    return ((const struct packed_u64 *)tab)->v;
-}
-
-static inline int64_t get_i64(const uint8_t *tab)
-{
-    return (int64_t)((const struct packed_u64 *)tab)->v;
-}
-
-static inline void put_u64(uint8_t *tab, uint64_t val)
-{
-    ((struct packed_u64 *)tab)->v = val;
-}
-
-static inline uint32_t get_u32(const uint8_t *tab)
-{
-    return ((const struct packed_u32 *)tab)->v;
-}
-
-static inline int32_t get_i32(const uint8_t *tab)
-{
-    return (int32_t)((const struct packed_u32 *)tab)->v;
-}
-
-static inline void put_u32(uint8_t *tab, uint32_t val)
-{
-    ((struct packed_u32 *)tab)->v = val;
-}
-
-static inline uint32_t get_u16(const uint8_t *tab)
-{
-    return ((const struct packed_u16 *)tab)->v;
-}
-
-static inline int32_t get_i16(const uint8_t *tab)
-{
-    return (int16_t)((const struct packed_u16 *)tab)->v;
-}
-
-static inline void put_u16(uint8_t *tab, uint16_t val)
-{
-    ((struct packed_u16 *)tab)->v = val;
-}
-
-static inline uint32_t get_u8(const uint8_t *tab)
-{
-    return *tab;
-}
-
-static inline int32_t get_i8(const uint8_t *tab)
-{
-    return (int8_t)*tab;
-}
-
-static inline void put_u8(uint8_t *tab, uint8_t val)
-{
-    *tab = val;
-}
-
-static inline uint16_t bswap16(uint16_t x)
-{
-    return (x >> 8) | (x << 8);
-}
-
-static inline uint32_t bswap32(uint32_t v)
-{
-    return ((v & 0xff000000) >> 24) | ((v & 0x00ff0000) >>  8) |
-        ((v & 0x0000ff00) <<  8) | ((v & 0x000000ff) << 24);
-}
-
-static inline uint64_t bswap64(uint64_t v)
-{
-    return ((v & ((uint64_t)0xff << (7 * 8))) >> (7 * 8)) | 
-        ((v & ((uint64_t)0xff << (6 * 8))) >> (5 * 8)) | 
-        ((v & ((uint64_t)0xff << (5 * 8))) >> (3 * 8)) | 
-        ((v & ((uint64_t)0xff << (4 * 8))) >> (1 * 8)) | 
-        ((v & ((uint64_t)0xff << (3 * 8))) << (1 * 8)) | 
-        ((v & ((uint64_t)0xff << (2 * 8))) << (3 * 8)) | 
-        ((v & ((uint64_t)0xff << (1 * 8))) << (5 * 8)) | 
-        ((v & ((uint64_t)0xff << (0 * 8))) << (7 * 8));
-}
-
-/* XXX: should take an extra argument to pass slack information to the caller */
-typedef void *DynBufReallocFunc(void *opaque, void *ptr, size_t size);
-
-typedef struct DynBuf {
-    uint8_t *buf;
-    size_t size;
-    size_t allocated_size;
-    BOOL error; /* true if a memory allocation error occurred */
-    DynBufReallocFunc *realloc_func;
-    void *opaque; /* for realloc_func */
-} DynBuf;
-
-void dbuf_init(DynBuf *s);
-void dbuf_init2(DynBuf *s, void *opaque, DynBufReallocFunc *realloc_func);
-int dbuf_realloc(DynBuf *s, size_t new_size);
-int dbuf_write(DynBuf *s, size_t offset, const uint8_t *data, size_t len);
-int dbuf_put(DynBuf *s, const uint8_t *data, size_t len);
-int dbuf_put_self(DynBuf *s, size_t offset, size_t len);
-int dbuf_putc(DynBuf *s, uint8_t c);
-int dbuf_putstr(DynBuf *s, const char *str);
-static inline int dbuf_put_u16(DynBuf *s, uint16_t val)
-{
-    return dbuf_put(s, (uint8_t *)&val, 2);
-}
-static inline int dbuf_put_u32(DynBuf *s, uint32_t val)
-{
-    return dbuf_put(s, (uint8_t *)&val, 4);
-}
-static inline int dbuf_put_u64(DynBuf *s, uint64_t val)
-{
-    return dbuf_put(s, (uint8_t *)&val, 8);
-}
-int __attribute__((format(printf, 2, 3))) dbuf_printf(DynBuf *s,
-                                                      const char *fmt, ...);
-void dbuf_free(DynBuf *s);
-static inline BOOL dbuf_error(DynBuf *s) {
-    return s->error;
-}
-
-#define UTF8_CHAR_LEN_MAX 6
-
-int unicode_to_utf8(uint8_t *buf, unsigned int c);
-int unicode_from_utf8(const uint8_t *p, int max_len, const uint8_t **pp);
-
-static inline int from_hex(int c)
-{
-    if (c >= '0' && c <= '9')
-        return c - '0';
-    else if (c >= 'A' && c <= 'F')
-        return c - 'A' + 10;
-    else if (c >= 'a' && c <= 'f')
-        return c - 'a' + 10;
-    else
-        return -1;
-}
-
-void rqsort(void *base, size_t nmemb, size_t size,
-            int (*cmp)(const void *, const void *, void *),
-            void *arg);
-
-#endif  /* CUTILS_H */
diff --git a/third-party/libregexp-opcode.h b/third-party/libregexp-opcode.h
deleted file mode 100644
index f90c23b..0000000
--- a/third-party/libregexp-opcode.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Regular Expression Engine
- * 
- * Copyright (c) 2017-2018 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifdef DEF
-
-DEF(invalid, 1) /* never used */
-DEF(char, 3)
-DEF(char32, 5)
-DEF(dot, 1)
-DEF(any, 1) /* same as dot but match any character including line terminator */
-DEF(line_start, 1)
-DEF(line_end, 1)
-DEF(goto, 5)
-DEF(split_goto_first, 5)
-DEF(split_next_first, 5)
-DEF(match, 1)
-DEF(save_start, 2) /* save start position */
-DEF(save_end, 2) /* save end position, must come after saved_start */
-DEF(save_reset, 3) /* reset save positions */
-DEF(loop, 5) /* decrement the top the stack and goto if != 0 */
-DEF(push_i32, 5) /* push integer on the stack */
-DEF(drop, 1)
-DEF(word_boundary, 1)
-DEF(not_word_boundary, 1)
-DEF(back_reference, 2)
-DEF(backward_back_reference, 2) /* must come after back_reference */
-DEF(range, 3) /* variable length */
-DEF(range32, 3) /* variable length */
-DEF(lookahead, 5)
-DEF(negative_lookahead, 5)
-DEF(push_char_pos, 1) /* push the character position on the stack */
-DEF(bne_char_pos, 5) /* pop one stack element and jump if equal to the character
- position */
-DEF(prev, 1) /* go to the previous char */
-DEF(simple_greedy_quant, 17)
-
-#endif /* DEF */
diff --git a/third-party/libregexp.c b/third-party/libregexp.c
deleted file mode 100644
index ad1e6bf..0000000
--- a/third-party/libregexp.c
+++ /dev/null
@@ -1,2541 +0,0 @@
-/*
- * Regular Expression Engine
- * 
- * Copyright (c) 2017-2018 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <inttypes.h>
-#include <string.h>
-#include <assert.h>
-
-#include "cutils.h"
-#include "libregexp.h"
-
-/*
-  TODO:
-
-  - Add full unicode canonicalize rules for character ranges (not
-    really useful but needed for exact "ignorecase" compatibility).
-
-  - Add a lock step execution mode (=linear time execution guaranteed)
-    when the regular expression is "simple" i.e. no backreference nor
-    complicated lookahead. The opcodes are designed for this execution
-    model.
-*/
-
-#if defined(TEST)
-#define DUMP_REOP
-#endif
-
-typedef enum {
-#define DEF(id, size) REOP_ ## id,
-#include "libregexp-opcode.h"
-#undef DEF
-    REOP_COUNT,
-} REOPCodeEnum;
-
-#define CAPTURE_COUNT_MAX 255
-#define STACK_SIZE_MAX 255
-
-/* unicode code points */
-#define CP_LS   0x2028
-#define CP_PS   0x2029
-
-#define TMP_BUF_SIZE 128
-
-typedef struct {
-    DynBuf byte_code;
-    const uint8_t *buf_ptr;
-    const uint8_t *buf_end;
-    const uint8_t *buf_start;
-    int re_flags;
-    BOOL is_utf16;
-    BOOL ignore_case;
-    BOOL dotall;
-    int capture_count;
-    int total_capture_count; /* -1 = not computed yet */
-    int has_named_captures; /* -1 = don't know, 0 = no, 1 = yes */
-    void *mem_opaque;
-    DynBuf group_names;
-    union {
-        char error_msg[TMP_BUF_SIZE];
-        char tmp_buf[TMP_BUF_SIZE];
-    } u;
-} REParseState;
-
-typedef struct {
-#ifdef DUMP_REOP
-    const char *name;
-#endif
-    uint8_t size;
-} REOpCode;
-
-static const REOpCode reopcode_info[REOP_COUNT] = {
-#ifdef DUMP_REOP
-#define DEF(id, size) { #id, size },
-#else
-#define DEF(id, size) { size },
-#endif
-#include "libregexp-opcode.h"
-#undef DEF
-};
-
-#define RE_HEADER_FLAGS         0
-#define RE_HEADER_CAPTURE_COUNT 1
-#define RE_HEADER_STACK_SIZE    2
-
-#define RE_HEADER_LEN 7
-
-static inline int is_digit(int c) {
-    return c >= '0' && c <= '9';
-}
-
-/* insert 'len' bytes at position 'pos' */
-static void dbuf_insert(DynBuf *s, int pos, int len)
-{
-    dbuf_realloc(s, s->size + len);
-    memmove(s->buf + pos + len, s->buf + pos, s->size - pos);
-    s->size += len;
-}
-
-/* canonicalize with the specific JS regexp rules */
-static uint32_t lre_canonicalize(uint32_t c, BOOL is_utf16)
-{
-    uint32_t res[LRE_CC_RES_LEN_MAX];
-    int len;
-    if (is_utf16) {
-        if (likely(c < 128)) {
-            if (c >= 'A' && c <= 'Z')
-                c = c - 'A' + 'a';
-        } else {
-            lre_case_conv(res, c, 2);
-            c = res[0];
-        }
-    } else {
-        if (likely(c < 128)) {
-            if (c >= 'a' && c <= 'z')
-                c = c - 'a' + 'A';
-        } else {
-            /* legacy regexp: to upper case if single char >= 128 */
-            len = lre_case_conv(res, c, FALSE);
-            if (len == 1 && res[0] >= 128)
-                c = res[0];
-        }
-    }
-    return c;
-}
-
-static const uint16_t char_range_d[] = {
-    1,
-    0x0030, 0x0039 + 1,
-};
-
-/* code point ranges for Zs,Zl or Zp property */
-static const uint16_t char_range_s[] = {
-    10,
-    0x0009, 0x000D + 1,
-    0x0020, 0x0020 + 1,
-    0x00A0, 0x00A0 + 1,
-    0x1680, 0x1680 + 1,
-    0x2000, 0x200A + 1,
-    /* 2028;LINE SEPARATOR;Zl;0;WS;;;;;N;;;;; */
-    /* 2029;PARAGRAPH SEPARATOR;Zp;0;B;;;;;N;;;;; */
-    0x2028, 0x2029 + 1,
-    0x202F, 0x202F + 1,
-    0x205F, 0x205F + 1,
-    0x3000, 0x3000 + 1,
-    /* FEFF;ZERO WIDTH NO-BREAK SPACE;Cf;0;BN;;;;;N;BYTE ORDER MARK;;;; */
-    0xFEFF, 0xFEFF + 1,
-};
-
-BOOL lre_is_space(int c)
-{
-    int i, n, low, high;
-    n = (countof(char_range_s) - 1) / 2;
-    for(i = 0; i < n; i++) {
-        low = char_range_s[2 * i + 1];
-        if (c < low)
-            return FALSE;
-        high = char_range_s[2 * i + 2];
-        if (c < high)
-            return TRUE;
-    }
-    return FALSE;
-}
-
-uint32_t const lre_id_start_table_ascii[4] = {
-    /* $ A-Z _ a-z */
-    0x00000000, 0x00000010, 0x87FFFFFE, 0x07FFFFFE
-};
-
-uint32_t const lre_id_continue_table_ascii[4] = {
-    /* $ 0-9 A-Z _ a-z */
-    0x00000000, 0x03FF0010, 0x87FFFFFE, 0x07FFFFFE
-};
-
-
-static const uint16_t char_range_w[] = {
-    4,
-    0x0030, 0x0039 + 1,
-    0x0041, 0x005A + 1,
-    0x005F, 0x005F + 1,
-    0x0061, 0x007A + 1,
-};
-
-#define CLASS_RANGE_BASE 0x40000000
-
-typedef enum {
-    CHAR_RANGE_d,
-    CHAR_RANGE_D,
-    CHAR_RANGE_s,
-    CHAR_RANGE_S,
-    CHAR_RANGE_w,
-    CHAR_RANGE_W,
-} CharRangeEnum;
-
-static const uint16_t *char_range_table[] = {
-    char_range_d,
-    char_range_s,
-    char_range_w,
-};
-
-static int cr_init_char_range(REParseState *s, CharRange *cr, uint32_t c)
-{
-    BOOL invert;
-    const uint16_t *c_pt;
-    int len, i;
-    
-    invert = c & 1;
-    c_pt = char_range_table[c >> 1];
-    len = *c_pt++;
-    cr_init(cr, s->mem_opaque, lre_realloc);
-    for(i = 0; i < len * 2; i++) {
-        if (cr_add_point(cr, c_pt[i]))
-            goto fail;
-    }
-    if (invert) {
-        if (cr_invert(cr))
-            goto fail;
-    }
-    return 0;
- fail:
-    cr_free(cr);
-    return -1;
-}
-
-static int cr_canonicalize(CharRange *cr)
-{
-    CharRange a;
-    uint32_t pt[2];
-    int i, ret;
-
-    cr_init(&a, cr->mem_opaque, lre_realloc);
-    pt[0] = 'a';
-    pt[1] = 'z' + 1;
-    ret = cr_op(&a, cr->points, cr->len, pt, 2, CR_OP_INTER);
-    if (ret)
-        goto fail;
-    /* convert to upper case */
-    /* XXX: the generic unicode case would be much more complicated
-       and not really useful */
-    for(i = 0; i < a.len; i++) {
-        a.points[i] += 'A' - 'a';
-    }
-    /* Note: for simplicity we keep the lower case ranges */
-    ret = cr_union1(cr, a.points, a.len);
- fail:
-    cr_free(&a);
-    return ret;
-}
-
-#ifdef DUMP_REOP
-static __attribute__((unused)) void lre_dump_bytecode(const uint8_t *buf,
-                                                     int buf_len)
-{
-    int pos, len, opcode, bc_len, re_flags, i;
-    uint32_t val;
-    
-    assert(buf_len >= RE_HEADER_LEN);
-
-    re_flags=  buf[0];
-    bc_len = get_u32(buf + 3);
-    assert(bc_len + RE_HEADER_LEN <= buf_len);
-    printf("flags: 0x%x capture_count=%d stack_size=%d\n",
-           re_flags, buf[1], buf[2]);
-    if (re_flags & LRE_FLAG_NAMED_GROUPS) {
-        const char *p;
-        p = (char *)buf + RE_HEADER_LEN + bc_len;
-        printf("named groups: ");
-        for(i = 1; i < buf[1]; i++) {
-            if (i != 1)
-                printf(",");
-            printf("<%s>", p);
-            p += strlen(p) + 1;
-        }
-        printf("\n");
-        assert(p == (char *)(buf + buf_len));
-    }
-    printf("bytecode_len=%d\n", bc_len);
-
-    buf += RE_HEADER_LEN;
-    pos = 0;
-    while (pos < bc_len) {
-        printf("%5u: ", pos);
-        opcode = buf[pos];
-        len = reopcode_info[opcode].size;
-        if (opcode >= REOP_COUNT) {
-            printf(" invalid opcode=0x%02x\n", opcode);
-            break;
-        }
-        if ((pos + len) > bc_len) {
-            printf(" buffer overflow (opcode=0x%02x)\n", opcode);
-            break;
-        }
-        printf("%s", reopcode_info[opcode].name);
-        switch(opcode) {
-        case REOP_char:
-            val = get_u16(buf + pos + 1);
-            if (val >= ' ' && val <= 126)
-                printf(" '%c'", val);
-            else
-                printf(" 0x%04x", val);
-            break;
-        case REOP_char32:
-            val = get_u32(buf + pos + 1);
-            if (val >= ' ' && val <= 126)
-                printf(" '%c'", val);
-            else
-                printf(" 0x%08x", val);
-            break;
-        case REOP_goto:
-        case REOP_split_goto_first:
-        case REOP_split_next_first:
-        case REOP_loop:
-        case REOP_lookahead:
-        case REOP_negative_lookahead:
-        case REOP_bne_char_pos:
-            val = get_u32(buf + pos + 1);
-            val += (pos + 5);
-            printf(" %u", val);
-            break;
-        case REOP_simple_greedy_quant:
-            printf(" %u %u %u %u",
-                   get_u32(buf + pos + 1) + (pos + 17),
-                   get_u32(buf + pos + 1 + 4),
-                   get_u32(buf + pos + 1 + 8),
-                   get_u32(buf + pos + 1 + 12));
-            break;
-        case REOP_save_start:
-        case REOP_save_end:
-        case REOP_back_reference:
-        case REOP_backward_back_reference:
-            printf(" %u", buf[pos + 1]);
-            break;
-        case REOP_save_reset:
-            printf(" %u %u", buf[pos + 1], buf[pos + 2]);
-            break;
-        case REOP_push_i32:
-            val = get_u32(buf + pos + 1);
-            printf(" %d", val);
-            break;
-        case REOP_range:
-            {
-                int n, i;
-                n = get_u16(buf + pos + 1);
-                len += n * 4;
-                for(i = 0; i < n * 2; i++) {
-                    val = get_u16(buf + pos + 3 + i * 2);
-                    printf(" 0x%04x", val);
-                }
-            }
-            break;
-        case REOP_range32:
-            {
-                int n, i;
-                n = get_u16(buf + pos + 1);
-                len += n * 8;
-                for(i = 0; i < n * 2; i++) {
-                    val = get_u32(buf + pos + 3 + i * 4);
-                    printf(" 0x%08x", val);
-                }
-            }
-            break;
-        default:
-            break;
-        }
-        printf("\n");
-        pos += len;
-    }
-}
-#endif
-
-static void re_emit_op(REParseState *s, int op)
-{
-    dbuf_putc(&s->byte_code, op);
-}
-
-/* return the offset of the u32 value */
-static int re_emit_op_u32(REParseState *s, int op, uint32_t val)
-{
-    int pos;
-    dbuf_putc(&s->byte_code, op);
-    pos = s->byte_code.size;
-    dbuf_put_u32(&s->byte_code, val);
-    return pos;
-}
-
-static int re_emit_goto(REParseState *s, int op, uint32_t val)
-{
-    int pos;
-    dbuf_putc(&s->byte_code, op);
-    pos = s->byte_code.size;
-    dbuf_put_u32(&s->byte_code, val - (pos + 4));
-    return pos;
-}
-
-static void re_emit_op_u8(REParseState *s, int op, uint32_t val)
-{
-    dbuf_putc(&s->byte_code, op);
-    dbuf_putc(&s->byte_code, val);
-}
-
-static void re_emit_op_u16(REParseState *s, int op, uint32_t val)
-{
-    dbuf_putc(&s->byte_code, op);
-    dbuf_put_u16(&s->byte_code, val);
-}
-
-static int __attribute__((format(printf, 2, 3))) re_parse_error(REParseState *s, const char *fmt, ...)
-{
-    va_list ap;
-    va_start(ap, fmt);
-    vsnprintf(s->u.error_msg, sizeof(s->u.error_msg), fmt, ap);
-    va_end(ap);
-    return -1;
-}
-
-/* Return -1 in case of overflow */
-static int parse_digits(const uint8_t **pp)
-{
-    const uint8_t *p;
-    uint64_t v;
-    int c;
-    
-    p = *pp;
-    v = 0;
-    for(;;) {
-        c = *p;
-        if (c < '0' || c > '9')
-            break;
-        v = v * 10 + c - '0';
-        if (v >= INT32_MAX)
-            return -1;
-        p++;
-    }
-    *pp = p;
-    return v;
-}
-
-static int re_parse_expect(REParseState *s, const uint8_t **pp, int c)
-{
-    const uint8_t *p;
-    p = *pp;
-    if (*p != c)
-        return re_parse_error(s, "expecting '%c'", c);
-    p++;
-    *pp = p;
-    return 0;
-}
-
-/* Parse an escape sequence, *pp points after the '\':
-   allow_utf16 value:
-   0 : no UTF-16 escapes allowed
-   1 : UTF-16 escapes allowed
-   2 : UTF-16 escapes allowed and escapes of surrogate pairs are
-   converted to a unicode character (unicode regexp case).
-
-   Return the unicode char and update *pp if recognized,
-   return -1 if malformed escape,
-   return -2 otherwise. */
-int lre_parse_escape(const uint8_t **pp, int allow_utf16)
-{
-    const uint8_t *p;
-    uint32_t c;
-
-    p = *pp;
-    c = *p++;
-    switch(c) {
-    case 'b':
-        c = '\b';
-        break;
-    case 'f':
-        c = '\f';
-        break;
-    case 'n':
-        c = '\n';
-        break;
-    case 'r':
-        c = '\r';
-        break;
-    case 't':
-        c = '\t';
-        break;
-    case 'v':
-        c = '\v';
-        break;
-    case 'x':
-    case 'u':
-        {
-            int h, n, i;
-            uint32_t c1;
-            
-            if (*p == '{' && allow_utf16) {
-                p++;
-                c = 0;
-                for(;;) {
-                    h = from_hex(*p++);
-                    if (h < 0)
-                        return -1;
-                    c = (c << 4) | h;
-                    if (c > 0x10FFFF)
-                        return -1;
-                    if (*p == '}')
-                        break;
-                }
-                p++;
-            } else {
-                if (c == 'x') {
-                    n = 2;
-                } else {
-                    n = 4;
-                }
-
-                c = 0;
-                for(i = 0; i < n; i++) {
-                    h = from_hex(*p++);
-                    if (h < 0) {
-                        return -1;
-                    }
-                    c = (c << 4) | h;
-                }
-                if (c >= 0xd800 && c < 0xdc00 &&
-                    allow_utf16 == 2 && p[0] == '\\' && p[1] == 'u') {
-                    /* convert an escaped surrogate pair into a
-                       unicode char */
-                    c1 = 0;
-                    for(i = 0; i < 4; i++) {
-                        h = from_hex(p[2 + i]);
-                        if (h < 0)
-                            break;
-                        c1 = (c1 << 4) | h;
-                    }
-                    if (i == 4 && c1 >= 0xdc00 && c1 < 0xe000) {
-                        p += 6;
-                        c = (((c & 0x3ff) << 10) | (c1 & 0x3ff)) + 0x10000;
-                    }
-                }
-            }
-        }
-        break;
-    case '0' ... '7':
-        c -= '0';
-        if (allow_utf16 == 2) {
-            /* only accept \0 not followed by digit */
-            if (c != 0 || is_digit(*p))
-                return -1;
-        } else {
-            /* parse a legacy octal sequence */
-            uint32_t v;
-            v = *p - '0';
-            if (v > 7)
-                break;
-            c = (c << 3) | v;
-            p++;
-            if (c >= 32)
-                break;
-            v = *p - '0';
-            if (v > 7)
-                break;
-            c = (c << 3) | v;
-            p++;
-        }
-        break;
-    default:
-        return -2;
-    }
-    *pp = p;
-    return c;
-}
-
-#ifdef CONFIG_ALL_UNICODE
-/* XXX: we use the same chars for name and value */
-static BOOL is_unicode_char(int c)
-{
-    return ((c >= '0' && c <= '9') ||
-            (c >= 'A' && c <= 'Z') ||
-            (c >= 'a' && c <= 'z') ||
-            (c == '_'));
-}
-
-static int parse_unicode_property(REParseState *s, CharRange *cr,
-                                  const uint8_t **pp, BOOL is_inv)
-{
-    const uint8_t *p;
-    char name[64], value[64];
-    char *q;
-    BOOL script_ext;
-    int ret;
-
-    p = *pp;
-    if (*p != '{')
-        return re_parse_error(s, "expecting '{' after \\p");
-    p++;
-    q = name;
-    while (is_unicode_char(*p)) {
-        if ((q - name) > sizeof(name) - 1)
-            goto unknown_property_name;
-        *q++ = *p++;
-    }
-    *q = '\0';
-    q = value;
-    if (*p == '=') {
-        p++;
-        while (is_unicode_char(*p)) {
-            if ((q - value) > sizeof(value) - 1)
-                return re_parse_error(s, "unknown unicode property value");
-            *q++ = *p++;
-        }
-    }
-    *q = '\0';
-    if (*p != '}')
-        return re_parse_error(s, "expecting '}'");
-    p++;
-    //    printf("name=%s value=%s\n", name, value);
-
-    if (!strcmp(name, "Script") || !strcmp(name, "sc")) {
-        script_ext = FALSE;
-        goto do_script;
-    } else if (!strcmp(name, "Script_Extensions") || !strcmp(name, "scx")) {
-        script_ext = TRUE;
-    do_script:
-        cr_init(cr, s->mem_opaque, lre_realloc);
-        ret = unicode_script(cr, value, script_ext);
-        if (ret) {
-            cr_free(cr);
-            if (ret == -2)
-                return re_parse_error(s, "unknown unicode script");
-            else
-                goto out_of_memory;
-        }
-    } else if (!strcmp(name, "General_Category") || !strcmp(name, "gc")) {
-        cr_init(cr, s->mem_opaque, lre_realloc);
-        ret = unicode_general_category(cr, value);
-        if (ret) {
-            cr_free(cr);
-            if (ret == -2)
-                return re_parse_error(s, "unknown unicode general category");
-            else
-                goto out_of_memory;
-        }
-    } else if (value[0] == '\0') {
-        cr_init(cr, s->mem_opaque, lre_realloc);
-        ret = unicode_general_category(cr, name);
-        if (ret == -1) {
-            cr_free(cr);
-            goto out_of_memory;
-        }
-        if (ret < 0) {
-            ret = unicode_prop(cr, name);
-            if (ret) {
-                cr_free(cr);
-                if (ret == -2)
-                    goto unknown_property_name;
-                else
-                    goto out_of_memory;
-            }
-        }
-    } else {
-    unknown_property_name:
-        return re_parse_error(s, "unknown unicode property name");
-    }
-
-    if (is_inv) {
-        if (cr_invert(cr)) {
-            cr_free(cr);
-            return -1;
-        }
-    }
-    *pp = p;
-    return 0;
- out_of_memory:
-    return re_parse_error(s, "out of memory");
-}
-#endif /* CONFIG_ALL_UNICODE */
-
-/* return -1 if error otherwise the character or a class range
-   (CLASS_RANGE_BASE). In case of class range, 'cr' is
-   initialized. Otherwise, it is ignored. */
-static int get_class_atom(REParseState *s, CharRange *cr,
-                          const uint8_t **pp, BOOL inclass)
-{
-    const uint8_t *p;
-    uint32_t c;
-    int ret;
-    
-    p = *pp;
-
-    c = *p;
-    switch(c) {
-    case '\\':
-        p++;
-        if (p >= s->buf_end)
-            goto unexpected_end;
-        c = *p++;
-        switch(c) {
-        case 'd':
-            c = CHAR_RANGE_d;
-            goto class_range;
-        case 'D':
-            c = CHAR_RANGE_D;
-            goto class_range;
-        case 's':
-            c = CHAR_RANGE_s;
-            goto class_range;
-        case 'S':
-            c = CHAR_RANGE_S;
-            goto class_range;
-        case 'w':
-            c = CHAR_RANGE_w;
-            goto class_range;
-        case 'W':
-            c = CHAR_RANGE_W;
-        class_range:
-            if (cr_init_char_range(s, cr, c))
-                return -1;
-            c = CLASS_RANGE_BASE;
-            break;
-        case 'c':
-            c = *p;
-            if ((c >= 'a' && c <= 'z') ||
-                (c >= 'A' && c <= 'Z') ||
-                (((c >= '0' && c <= '9') || c == '_') &&
-                 inclass && !s->is_utf16)) {   /* Annex B.1.4 */
-                c &= 0x1f;
-                p++;
-            } else if (s->is_utf16) {
-                goto invalid_escape;
-            } else {
-                /* otherwise return '\' and 'c' */
-                p--;
-                c = '\\';
-            }
-            break;
-#ifdef CONFIG_ALL_UNICODE
-        case 'p':
-        case 'P':
-            if (s->is_utf16) {
-                if (parse_unicode_property(s, cr, &p, (c == 'P')))
-                    return -1;
-                c = CLASS_RANGE_BASE;
-                break;
-            }
-            /* fall thru */
-#endif
-        default:
-            p--;
-            ret = lre_parse_escape(&p, s->is_utf16 * 2);
-            if (ret >= 0) {
-                c = ret;
-            } else {
-                if (ret == -2 && *p != '\0' && strchr("^$\\.*+?()[]{}|/", *p)) {
-                    /* always valid to escape these characters */
-                    goto normal_char;
-                } else if (s->is_utf16) {
-                invalid_escape:
-                    return re_parse_error(s, "invalid escape sequence in regular expression");
-                } else {
-                    /* just ignore the '\' */
-                    goto normal_char;
-                }
-            }
-            break;
-        }
-        break;
-    case '\0':
-        if (p >= s->buf_end) {
-        unexpected_end:
-            return re_parse_error(s, "unexpected end");
-        }
-        /* fall thru */
-    default:
-    normal_char:
-        /* normal char */
-        if (c >= 128) {
-            c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
-            if ((unsigned)c > 0xffff && !s->is_utf16) {
-                /* XXX: should handle non BMP-1 code points */
-                return re_parse_error(s, "malformed unicode char");
-            }
-        } else {
-            p++;
-        }
-        break;
-    }
-    *pp = p;
-    return c;
-}
-
-static int re_emit_range(REParseState *s, const CharRange *cr)
-{
-    int len, i;
-    uint32_t high;
-    
-    len = (unsigned)cr->len / 2;
-    if (len >= 65535)
-        return re_parse_error(s, "too many ranges");
-    if (len == 0) {
-        /* not sure it can really happen. Emit a match that is always
-           false */
-        re_emit_op_u32(s, REOP_char32, -1);
-    } else {
-        high = cr->points[cr->len - 1];
-        if (high == UINT32_MAX)
-            high = cr->points[cr->len - 2];
-        if (high <= 0xffff) {
-            /* can use 16 bit ranges with the conversion that 0xffff =
-               infinity */
-            re_emit_op_u16(s, REOP_range, len);
-            for(i = 0; i < cr->len; i += 2) {
-                dbuf_put_u16(&s->byte_code, cr->points[i]);
-                high = cr->points[i + 1] - 1;
-                if (high == UINT32_MAX - 1)
-                    high = 0xffff;
-                dbuf_put_u16(&s->byte_code, high);
-            }
-        } else {
-            re_emit_op_u16(s, REOP_range32, len);
-            for(i = 0; i < cr->len; i += 2) {
-                dbuf_put_u32(&s->byte_code, cr->points[i]);
-                dbuf_put_u32(&s->byte_code, cr->points[i + 1] - 1);
-            }
-        }
-    }
-    return 0;
-}
-
-static int re_parse_char_class(REParseState *s, const uint8_t **pp)
-{
-    const uint8_t *p;
-    uint32_t c1, c2;
-    CharRange cr_s, *cr = &cr_s;
-    CharRange cr1_s, *cr1 = &cr1_s;
-    BOOL invert;
-    
-    cr_init(cr, s->mem_opaque, lre_realloc);
-    p = *pp;
-    p++;    /* skip '[' */
-    invert = FALSE;
-    if (*p == '^') {
-        p++;
-        invert = TRUE;
-    }
-    for(;;) {
-        if (*p == ']')
-            break;
-        c1 = get_class_atom(s, cr1, &p, TRUE);
-        if ((int)c1 < 0)
-            goto fail;
-        if (*p == '-' && p[1] != ']') {
-            const uint8_t *p0 = p + 1;
-            if (c1 >= CLASS_RANGE_BASE) {
-                if (s->is_utf16) {
-                    cr_free(cr1);
-                    goto invalid_class_range;
-                }
-                /* Annex B: match '-' character */
-                goto class_atom;
-            }
-            c2 = get_class_atom(s, cr1, &p0, TRUE);
-            if ((int)c2 < 0)
-                goto fail;
-            if (c2 >= CLASS_RANGE_BASE) {
-                cr_free(cr1);
-                if (s->is_utf16) {
-                    goto invalid_class_range;
-                }
-                /* Annex B: match '-' character */
-                goto class_atom;
-            }
-            p = p0;
-            if (c2 < c1) {
-            invalid_class_range:
-                re_parse_error(s, "invalid class range");
-                goto fail;
-            }
-            if (cr_union_interval(cr, c1, c2))
-                goto memory_error;
-        } else {
-        class_atom:
-            if (c1 >= CLASS_RANGE_BASE) {
-                int ret;
-                ret = cr_union1(cr, cr1->points, cr1->len);
-                cr_free(cr1);
-                if (ret)
-                    goto memory_error;
-            } else {
-                if (cr_union_interval(cr, c1, c1))
-                    goto memory_error;
-            }
-        }
-    }
-    if (s->ignore_case) {
-        if (cr_canonicalize(cr))
-            goto memory_error;
-    }
-    if (invert) {
-        if (cr_invert(cr))
-            goto memory_error;
-    }
-    if (re_emit_range(s, cr))
-        goto fail;
-    cr_free(cr);
-    p++;    /* skip ']' */
-    *pp = p;
-    return 0;
- memory_error:
-    re_parse_error(s, "out of memory");
- fail:
-    cr_free(cr);
-    return -1;
-}
-
-/* Return:
-   1 if the opcodes in bc_buf[] always advance the character pointer.
-   0 if the character pointer may not be advanced.
-   -1 if the code may depend on side effects of its previous execution (backreference)
-*/
-static int re_check_advance(const uint8_t *bc_buf, int bc_buf_len)
-{
-    int pos, opcode, ret, len, i;
-    uint32_t val, last;
-    BOOL has_back_reference;
-    uint8_t capture_bitmap[CAPTURE_COUNT_MAX];
-    
-    ret = -2; /* not known yet */
-    pos = 0;
-    has_back_reference = FALSE;
-    memset(capture_bitmap, 0, sizeof(capture_bitmap));
-    
-    while (pos < bc_buf_len) {
-        opcode = bc_buf[pos];
-        len = reopcode_info[opcode].size;
-        switch(opcode) {
-        case REOP_range:
-            val = get_u16(bc_buf + pos + 1);
-            len += val * 4;
-            goto simple_char;
-        case REOP_range32:
-            val = get_u16(bc_buf + pos + 1);
-            len += val * 8;
-            goto simple_char;
-        case REOP_char:
-        case REOP_char32:
-        case REOP_dot:
-        case REOP_any:
-        simple_char:
-            if (ret == -2)
-                ret = 1;
-            break;
-        case REOP_line_start:
-        case REOP_line_end:
-        case REOP_push_i32:
-        case REOP_push_char_pos:
-        case REOP_drop:
-        case REOP_word_boundary:
-        case REOP_not_word_boundary:
-        case REOP_prev:
-            /* no effect */
-            break;
-        case REOP_save_start:
-        case REOP_save_end:
-            val = bc_buf[pos + 1];
-            capture_bitmap[val] |= 1;
-            break;
-        case REOP_save_reset:
-            {
-                val = bc_buf[pos + 1];
-                last = bc_buf[pos + 2];
-                while (val < last)
-                    capture_bitmap[val++] |= 1;
-            }
-            break;
-        case REOP_back_reference:
-        case REOP_backward_back_reference:
-            val = bc_buf[pos + 1];
-            capture_bitmap[val] |= 2;
-            has_back_reference = TRUE;
-            break;
-        default:
-            /* safe behvior: we cannot predict the outcome */
-            if (ret == -2)
-                ret = 0;
-            break;
-        }
-        pos += len;
-    }
-    if (has_back_reference) {
-        /* check if there is back reference which references a capture
-           made in the some code */
-        for(i = 0; i < CAPTURE_COUNT_MAX; i++) {
-            if (capture_bitmap[i] == 3)
-                return -1;
-        }
-    }
-    if (ret == -2)
-        ret = 0;
-    return ret;
-}
-
-/* return -1 if a simple quantifier cannot be used. Otherwise return
-   the number of characters in the atom. */
-static int re_is_simple_quantifier(const uint8_t *bc_buf, int bc_buf_len)
-{
-    int pos, opcode, len, count;
-    uint32_t val;
-    
-    count = 0;
-    pos = 0;
-    while (pos < bc_buf_len) {
-        opcode = bc_buf[pos];
-        len = reopcode_info[opcode].size;
-        switch(opcode) {
-        case REOP_range:
-            val = get_u16(bc_buf + pos + 1);
-            len += val * 4;
-            goto simple_char;
-        case REOP_range32:
-            val = get_u16(bc_buf + pos + 1);
-            len += val * 8;
-            goto simple_char;
-        case REOP_char:
-        case REOP_char32:
-        case REOP_dot:
-        case REOP_any:
-        simple_char:
-            count++;
-            break;
-        case REOP_line_start:
-        case REOP_line_end:
-        case REOP_word_boundary:
-        case REOP_not_word_boundary:
-            break;
-        default:
-            return -1;
-        }
-        pos += len;
-    }
-    return count;
-}
-
-/* '*pp' is the first char after '<' */
-static int re_parse_group_name(char *buf, int buf_size,
-                               const uint8_t **pp, BOOL is_utf16)
-{
-    const uint8_t *p;
-    uint32_t c;
-    char *q;
-
-    p = *pp;
-    q = buf;
-    for(;;) {
-        c = *p;
-        if (c == '\\') {
-            p++;
-            if (*p != 'u')
-                return -1;
-            c = lre_parse_escape(&p, is_utf16 * 2);
-        } else if (c == '>') {
-            break;
-        } else if (c >= 128) {
-            c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
-        } else {
-            p++;
-        }
-        if (c > 0x10FFFF)
-            return -1;
-        if (q == buf) {
-            if (!lre_js_is_ident_first(c))
-                return -1;
-        } else {
-            if (!lre_js_is_ident_next(c))
-                return -1;
-        }
-        if ((q - buf + UTF8_CHAR_LEN_MAX + 1) > buf_size)
-            return -1;
-        if (c < 128) {
-            *q++ = c;
-        } else {
-            q += unicode_to_utf8((uint8_t*)q, c);
-        }
-    }
-    if (q == buf)
-        return -1;
-    *q = '\0';
-    p++;
-    *pp = p;
-    return 0;
-}
-
-/* if capture_name = NULL: return the number of captures + 1.
-   Otherwise, return the capture index corresponding to capture_name
-   or -1 if none */
-static int re_parse_captures(REParseState *s, int *phas_named_captures,
-                             const char *capture_name)
-{
-    const uint8_t *p;
-    int capture_index;
-    char name[TMP_BUF_SIZE];
-
-    capture_index = 1;
-    *phas_named_captures = 0;
-    for (p = s->buf_start; p < s->buf_end; p++) {
-        switch (*p) {
-        case '(':
-            if (p[1] == '?') {
-                if (p[2] == '<' && p[3] != '=' && p[3] != '!') {
-                    *phas_named_captures = 1;
-                    /* potential named capture */
-                    if (capture_name) {
-                        p += 3;
-                        if (re_parse_group_name(name, sizeof(name), &p,
-                                                s->is_utf16) == 0) {
-                            if (!strcmp(name, capture_name))
-                                return capture_index;
-                        }
-                    }
-                    capture_index++;
-                }
-            } else {
-                capture_index++;
-            }
-            break;
-        case '\\':
-            p++;
-            break;
-        case '[':
-            for (p += 1 + (*p == ']'); p < s->buf_end && *p != ']'; p++) {
-                if (*p == '\\')
-                    p++;
-            }
-            break;
-        }
-    }
-    if (capture_name)
-        return -1;
-    else
-        return capture_index;
-}
-
-static int re_count_captures(REParseState *s)
-{
-    if (s->total_capture_count < 0) {
-        s->total_capture_count = re_parse_captures(s, &s->has_named_captures,
-                                                   NULL);
-    }
-    return s->total_capture_count;
-}
-
-static BOOL re_has_named_captures(REParseState *s)
-{
-    if (s->has_named_captures < 0)
-        re_count_captures(s);
-    return s->has_named_captures;
-}
-
-static int find_group_name(REParseState *s, const char *name)
-{
-    const char *p, *buf_end;
-    size_t len, name_len;
-    int capture_index;
-    
-    name_len = strlen(name);
-    p = (char *)s->group_names.buf;
-    buf_end = (char *)s->group_names.buf + s->group_names.size;
-    capture_index = 1;
-    while (p < buf_end) {
-        len = strlen(p);
-        if (len == name_len && memcmp(name, p, name_len) == 0)
-            return capture_index;
-        p += len + 1;
-        capture_index++;
-    }
-    return -1;
-}
-
-static int re_parse_disjunction(REParseState *s, BOOL is_backward_dir);
-
-static int re_parse_term(REParseState *s, BOOL is_backward_dir)
-{
-    const uint8_t *p;
-    int c, last_atom_start, quant_min, quant_max, last_capture_count;
-    BOOL greedy, add_zero_advance_check, is_neg, is_backward_lookahead;
-    CharRange cr_s, *cr = &cr_s;
-    
-    last_atom_start = -1;
-    last_capture_count = 0;
-    p = s->buf_ptr;
-    c = *p;
-    switch(c) {
-    case '^':
-        p++;
-        re_emit_op(s, REOP_line_start);
-        break;
-    case '$':
-        p++;
-        re_emit_op(s, REOP_line_end);
-        break;
-    case '.':
-        p++;
-        last_atom_start = s->byte_code.size;
-        last_capture_count = s->capture_count;
-        if (is_backward_dir)
-            re_emit_op(s, REOP_prev);
-        re_emit_op(s, s->dotall ? REOP_any : REOP_dot);
-        if (is_backward_dir)
-            re_emit_op(s, REOP_prev);
-        break;
-    case '{':
-        /* As an extension (see ES6 annex B), we accept '{' not
-           followed by digits as a normal atom */
-        if (!is_digit(p[1])) {
-            if (s->is_utf16)
-                goto invalid_quant_count;
-            goto parse_class_atom;
-        }
-        /* fall tru */
-    case '*':
-    case '+':
-    case '?':
-        return re_parse_error(s, "nothing to repeat");
-    case '(':
-        if (p[1] == '?') {
-            if (p[2] == ':') {
-                p += 3;
-                last_atom_start = s->byte_code.size;
-                last_capture_count = s->capture_count;
-                s->buf_ptr = p;
-                if (re_parse_disjunction(s, is_backward_dir))
-                    return -1;
-                p = s->buf_ptr;
-                if (re_parse_expect(s, &p, ')'))
-                    return -1;
-            } else if ((p[2] == '=' || p[2] == '!')) {
-                is_neg = (p[2] == '!');
-                is_backward_lookahead = FALSE;
-                p += 3;
-                goto lookahead;
-            } else if (p[2] == '<' &&
-                       (p[3] == '=' || p[3] == '!')) {
-                int pos;
-                is_neg = (p[3] == '!');
-                is_backward_lookahead = TRUE;
-                p += 4;
-                /* lookahead */
-            lookahead:
-                /* Annex B allows lookahead to be used as an atom for
-                   the quantifiers */
-                if (!s->is_utf16 && !is_backward_lookahead)  {
-                    last_atom_start = s->byte_code.size;
-                    last_capture_count = s->capture_count;
-                }
-                pos = re_emit_op_u32(s, REOP_lookahead + is_neg, 0);
-                s->buf_ptr = p;
-                if (re_parse_disjunction(s, is_backward_lookahead))
-                    return -1;
-                p = s->buf_ptr;
-                if (re_parse_expect(s, &p, ')'))
-                    return -1;
-                re_emit_op(s, REOP_match);
-                /* jump after the 'match' after the lookahead is successful */
-                put_u32(s->byte_code.buf + pos, s->byte_code.size - (pos + 4));
-            } else if (p[2] == '<') {
-                p += 3;
-                if (re_parse_group_name(s->u.tmp_buf, sizeof(s->u.tmp_buf),
-                                        &p, s->is_utf16)) {
-                    return re_parse_error(s, "invalid group name");
-                }
-                if (find_group_name(s, s->u.tmp_buf) > 0) {
-                    return re_parse_error(s, "duplicate group name");
-                }
-                /* group name with a trailing zero */
-                dbuf_put(&s->group_names, (uint8_t *)s->u.tmp_buf,
-                         strlen(s->u.tmp_buf) + 1);
-                s->has_named_captures = 1;
-                goto parse_capture;
-            } else {
-                return re_parse_error(s, "invalid group");
-            }
-        } else {
-            int capture_index;
-            p++;
-            /* capture without group name */
-            dbuf_putc(&s->group_names, 0);
-        parse_capture:
-            if (s->capture_count >= CAPTURE_COUNT_MAX)
-                return re_parse_error(s, "too many captures");
-            last_atom_start = s->byte_code.size;
-            last_capture_count = s->capture_count;
-            capture_index = s->capture_count++;
-            re_emit_op_u8(s, REOP_save_start + is_backward_dir,
-                          capture_index);
-            
-            s->buf_ptr = p;
-            if (re_parse_disjunction(s, is_backward_dir))
-                return -1;
-            p = s->buf_ptr;
-            
-            re_emit_op_u8(s, REOP_save_start + 1 - is_backward_dir,
-                          capture_index);
-            
-            if (re_parse_expect(s, &p, ')'))
-                return -1;
-        }
-        break;
-    case '\\':
-        switch(p[1]) {
-        case 'b':
-        case 'B':
-            re_emit_op(s, REOP_word_boundary + (p[1] != 'b'));
-            p += 2;
-            break;
-        case 'k':
-            {
-                const uint8_t *p1;
-                int dummy_res;
-                
-                p1 = p;
-                if (p1[2] != '<') {
-                    /* annex B: we tolerate invalid group names in non
-                       unicode mode if there is no named capture
-                       definition */
-                    if (s->is_utf16 || re_has_named_captures(s))
-                        return re_parse_error(s, "expecting group name");
-                    else
-                        goto parse_class_atom;
-                }
-                p1 += 3;
-                if (re_parse_group_name(s->u.tmp_buf, sizeof(s->u.tmp_buf),
-                                        &p1, s->is_utf16)) {
-                    if (s->is_utf16 || re_has_named_captures(s))
-                        return re_parse_error(s, "invalid group name");
-                    else
-                        goto parse_class_atom;
-                }
-                c = find_group_name(s, s->u.tmp_buf);
-                if (c < 0) {
-                    /* no capture name parsed before, try to look
-                       after (inefficient, but hopefully not common */
-                    c = re_parse_captures(s, &dummy_res, s->u.tmp_buf);
-                    if (c < 0) {
-                        if (s->is_utf16 || re_has_named_captures(s))
-                            return re_parse_error(s, "group name not defined");
-                        else
-                            goto parse_class_atom;
-                    }
-                }
-                p = p1;
-            }
-            goto emit_back_reference;
-        case '0':
-            p += 2;
-            c = 0;
-            if (s->is_utf16) {
-                if (is_digit(*p)) {
-                    return re_parse_error(s, "invalid decimal escape in regular expression");
-                }
-            } else {
-                /* Annex B.1.4: accept legacy octal */
-                if (*p >= '0' && *p <= '7') {
-                    c = *p++ - '0';
-                    if (*p >= '0' && *p <= '7') {
-                        c = (c << 3) + *p++ - '0';
-                    }
-                }
-            }
-            goto normal_char;
-        case '1' ... '9':
-            {
-                const uint8_t *q = ++p;
-                
-                c = parse_digits(&p);
-                if (c < 0 || (c >= s->capture_count && c >= re_count_captures(s))) {
-                    if (!s->is_utf16) {
-                        /* Annex B.1.4: accept legacy octal */
-                        p = q;
-                        if (*p <= '7') {
-                            c = 0;
-                            if (*p <= '3')
-                                c = *p++ - '0';
-                            if (*p >= '0' && *p <= '7') {
-                                c = (c << 3) + *p++ - '0';
-                                if (*p >= '0' && *p <= '7') {
-                                    c = (c << 3) + *p++ - '0';
-                                }
-                            }
-                        } else {
-                            c = *p++;
-                        }
-                        goto normal_char;
-                    }
-                    return re_parse_error(s, "back reference out of range in reguar expression");
-                }
-            emit_back_reference:
-                last_atom_start = s->byte_code.size;
-                last_capture_count = s->capture_count;
-                re_emit_op_u8(s, REOP_back_reference + is_backward_dir, c);
-            }
-            break;
-        default:
-            goto parse_class_atom;
-        }
-        break;
-    case '[':
-        last_atom_start = s->byte_code.size;
-        last_capture_count = s->capture_count;
-        if (is_backward_dir)
-            re_emit_op(s, REOP_prev);
-        if (re_parse_char_class(s, &p))
-            return -1;
-        if (is_backward_dir)
-            re_emit_op(s, REOP_prev);
-        break;
-    case ']':
-    case '}':
-        if (s->is_utf16)
-            return re_parse_error(s, "syntax error");
-        goto parse_class_atom;
-    default:
-    parse_class_atom:
-        c = get_class_atom(s, cr, &p, FALSE);
-        if ((int)c < 0)
-            return -1;
-    normal_char:
-        last_atom_start = s->byte_code.size;
-        last_capture_count = s->capture_count;
-        if (is_backward_dir)
-            re_emit_op(s, REOP_prev);
-        if (c >= CLASS_RANGE_BASE) {
-            int ret;
-            /* Note: canonicalization is not needed */
-            ret = re_emit_range(s, cr);
-            cr_free(cr);
-            if (ret)
-                return -1;
-        } else {
-            if (s->ignore_case)
-                c = lre_canonicalize(c, s->is_utf16);
-            if (c <= 0xffff)
-                re_emit_op_u16(s, REOP_char, c);
-            else
-                re_emit_op_u32(s, REOP_char32, c);
-        }
-        if (is_backward_dir)
-            re_emit_op(s, REOP_prev);
-        break;
-    }
-
-    /* quantifier */
-    if (last_atom_start >= 0) {
-        c = *p;
-        switch(c) {
-        case '*':
-            p++;
-            quant_min = 0;
-            quant_max = INT32_MAX;
-            goto quantifier;
-        case '+':
-            p++;
-            quant_min = 1;
-            quant_max = INT32_MAX;
-            goto quantifier;
-        case '?':
-            p++;
-            quant_min = 0;
-            quant_max = 1;
-            goto quantifier;
-        case '{':
-            /* As an extension (see ES6 annex B), we accept '{' not
-               followed by digits as a normal atom */
-            if (!is_digit(p[1])) {
-                if (s->is_utf16)
-                    goto invalid_quant_count;
-                break;
-            }
-            p++;
-            quant_min = parse_digits(&p);
-            if (quant_min < 0) {
-            invalid_quant_count:
-                return re_parse_error(s, "invalid repetition count");
-            }
-            quant_max = quant_min;
-            if (*p == ',') {
-                p++;
-                if (is_digit(*p)) {
-                    quant_max = parse_digits(&p);
-                    if (quant_max < 0 || quant_max < quant_min)
-                        goto invalid_quant_count;
-                } else {
-                    quant_max = INT32_MAX; /* infinity */
-                }
-            }
-            if (re_parse_expect(s, &p, '}'))
-                return -1;
-        quantifier:
-            greedy = TRUE;
-            if (*p == '?') {
-                p++;
-                greedy = FALSE;
-            }
-            if (last_atom_start < 0) {
-                return re_parse_error(s, "nothing to repeat");
-            }
-            if (greedy) {
-                int len, pos;
-                
-                if (quant_max > 0) {
-                    /* specific optimization for simple quantifiers */
-                    len = re_is_simple_quantifier(s->byte_code.buf + last_atom_start,
-                                                 s->byte_code.size - last_atom_start);
-                    if (len > 0) {
-                        re_emit_op(s, REOP_match);
-                        
-                        dbuf_insert(&s->byte_code, last_atom_start, 17);
-                        pos = last_atom_start;
-                        s->byte_code.buf[pos++] = REOP_simple_greedy_quant;
-                        put_u32(&s->byte_code.buf[pos],
-                                s->byte_code.size - last_atom_start - 17);
-                        pos += 4;
-                        put_u32(&s->byte_code.buf[pos], quant_min);
-                        pos += 4;
-                        put_u32(&s->byte_code.buf[pos], quant_max);
-                        pos += 4;
-                        put_u32(&s->byte_code.buf[pos], len);
-                        pos += 4;
-                        goto done;
-                    }
-                }
-                
-                add_zero_advance_check = (re_check_advance(s->byte_code.buf + last_atom_start,
-                                                           s->byte_code.size - last_atom_start) == 0);
-            } else {
-                add_zero_advance_check = FALSE;
-            }
-            
-            {
-                int len, pos;
-                len = s->byte_code.size - last_atom_start;
-                if (quant_min == 0) {
-                    /* need to reset the capture in case the atom is
-                       not executed */
-                    if (last_capture_count != s->capture_count) {
-                        dbuf_insert(&s->byte_code, last_atom_start, 3);
-                        s->byte_code.buf[last_atom_start++] = REOP_save_reset;
-                        s->byte_code.buf[last_atom_start++] = last_capture_count;
-                        s->byte_code.buf[last_atom_start++] = s->capture_count - 1;
-                    }
-                    if (quant_max == 0) {
-                        s->byte_code.size = last_atom_start;
-                    } else if (quant_max == 1) {
-                        dbuf_insert(&s->byte_code, last_atom_start, 5);
-                        s->byte_code.buf[last_atom_start] = REOP_split_goto_first +
-                            greedy;
-                        put_u32(s->byte_code.buf + last_atom_start + 1, len);
-                    } else if (quant_max == INT32_MAX) {
-                        dbuf_insert(&s->byte_code, last_atom_start, 5 + add_zero_advance_check);
-                        s->byte_code.buf[last_atom_start] = REOP_split_goto_first +
-                            greedy;
-                        put_u32(s->byte_code.buf + last_atom_start + 1,
-                                len + 5 + add_zero_advance_check);
-                        if (add_zero_advance_check) {
-                            /* avoid infinite loop by stoping the
-                               recursion if no advance was made in the
-                               atom (only works if the atom has no
-                               side effect) */
-                            s->byte_code.buf[last_atom_start + 1 + 4] = REOP_push_char_pos;
-                            re_emit_goto(s, REOP_bne_char_pos, last_atom_start); 
-                        } else {
-                            re_emit_goto(s, REOP_goto, last_atom_start);
-                        }
-                    } else {
-                        dbuf_insert(&s->byte_code, last_atom_start, 10);
-                        pos = last_atom_start;
-                        s->byte_code.buf[pos++] = REOP_push_i32;
-                        put_u32(s->byte_code.buf + pos, quant_max);
-                        pos += 4;
-                        s->byte_code.buf[pos++] = REOP_split_goto_first + greedy;
-                        put_u32(s->byte_code.buf + pos, len + 5);
-                        re_emit_goto(s, REOP_loop, last_atom_start + 5);
-                        re_emit_op(s, REOP_drop);
-                    }
-                } else if (quant_min == 1 && quant_max == INT32_MAX &&
-                           !add_zero_advance_check) {
-                    re_emit_goto(s, REOP_split_next_first - greedy,
-                                 last_atom_start);
-                } else {
-                    if (quant_min == 1) {
-                        /* nothing to add */
-                    } else {
-                        dbuf_insert(&s->byte_code, last_atom_start, 5);
-                        s->byte_code.buf[last_atom_start] = REOP_push_i32;
-                        put_u32(s->byte_code.buf + last_atom_start + 1,
-                                quant_min);
-                        last_atom_start += 5;
-                        re_emit_goto(s, REOP_loop, last_atom_start);
-                        re_emit_op(s, REOP_drop);
-                    }
-                    if (quant_max == INT32_MAX) {
-                        pos = s->byte_code.size;
-                        re_emit_op_u32(s, REOP_split_goto_first + greedy,
-                                       len + 5 + add_zero_advance_check);
-                        if (add_zero_advance_check)
-                            re_emit_op(s, REOP_push_char_pos);
-                        /* copy the atom */
-                        dbuf_put_self(&s->byte_code, last_atom_start, len);
-                        if (add_zero_advance_check)
-                            re_emit_goto(s, REOP_bne_char_pos, pos);
-                        else
-                            re_emit_goto(s, REOP_goto, pos);
-                    } else if (quant_max > quant_min) {
-                        re_emit_op_u32(s, REOP_push_i32, quant_max - quant_min);
-                        pos = s->byte_code.size;
-                        re_emit_op_u32(s, REOP_split_goto_first + greedy, len + 5);
-                        /* copy the atom */
-                        dbuf_put_self(&s->byte_code, last_atom_start, len);
-                        
-                        re_emit_goto(s, REOP_loop, pos);
-                        re_emit_op(s, REOP_drop);
-                    }
-                }
-                last_atom_start = -1;
-            }
-            break;
-        default:
-            break;
-        }
-    }
- done:
-    s->buf_ptr = p;
-    return 0;
-}
-
-static int re_parse_alternative(REParseState *s, BOOL is_backward_dir)
-{
-    const uint8_t *p;
-    int ret;
-    size_t start, term_start, end, term_size;
-
-    start = s->byte_code.size;
-    for(;;) {
-        p = s->buf_ptr;
-        if (p >= s->buf_end)
-            break;
-        if (*p == '|' || *p == ')')
-            break;
-        term_start = s->byte_code.size;
-        ret = re_parse_term(s, is_backward_dir);
-        if (ret)
-            return ret;
-        if (is_backward_dir) {
-            /* reverse the order of the terms (XXX: inefficient, but
-               speed is not really critical here) */
-            end = s->byte_code.size;
-            term_size = end - term_start;
-            if (dbuf_realloc(&s->byte_code, end + term_size))
-                return -1;
-            memmove(s->byte_code.buf + start + term_size,
-                    s->byte_code.buf + start,
-                    end - start);
-            memcpy(s->byte_code.buf + start, s->byte_code.buf + end,
-                   term_size);
-        }
-    }
-    return 0;
-}
-    
-static int re_parse_disjunction(REParseState *s, BOOL is_backward_dir)
-{
-    int start, len, pos;
-
-    start = s->byte_code.size;
-    if (re_parse_alternative(s, is_backward_dir))
-        return -1;
-    while (*s->buf_ptr == '|') {
-        s->buf_ptr++;
-
-        len = s->byte_code.size - start;
-
-        /* insert a split before the first alternative */
-        dbuf_insert(&s->byte_code, start, 5);
-        s->byte_code.buf[start] = REOP_split_next_first;
-        put_u32(s->byte_code.buf + start + 1, len + 5);
-
-        pos = re_emit_op_u32(s, REOP_goto, 0);
-
-        if (re_parse_alternative(s, is_backward_dir))
-            return -1;
-        
-        /* patch the goto */
-        len = s->byte_code.size - (pos + 4);
-        put_u32(s->byte_code.buf + pos, len);
-    }
-    return 0;
-}
-
-/* the control flow is recursive so the analysis can be linear */
-static int compute_stack_size(const uint8_t *bc_buf, int bc_buf_len)
-{
-    int stack_size, stack_size_max, pos, opcode, len;
-    uint32_t val;
-    
-    stack_size = 0;
-    stack_size_max = 0;
-    bc_buf += RE_HEADER_LEN;
-    bc_buf_len -= RE_HEADER_LEN;
-    pos = 0;
-    while (pos < bc_buf_len) {
-        opcode = bc_buf[pos];
-        len = reopcode_info[opcode].size;
-        assert(opcode < REOP_COUNT);
-        assert((pos + len) <= bc_buf_len);
-        switch(opcode) {
-        case REOP_push_i32:
-        case REOP_push_char_pos:
-            stack_size++;
-            if (stack_size > stack_size_max) {
-                if (stack_size > STACK_SIZE_MAX)
-                    return -1;
-                stack_size_max = stack_size;
-            }
-            break;
-        case REOP_drop:
-        case REOP_bne_char_pos:
-            assert(stack_size > 0);
-            stack_size--;
-            break;
-        case REOP_range:
-            val = get_u16(bc_buf + pos + 1);
-            len += val * 4;
-            break;
-        case REOP_range32:
-            val = get_u16(bc_buf + pos + 1);
-            len += val * 8;
-            break;
-        }
-        pos += len;
-    }
-    return stack_size_max;
-}
-
-/* 'buf' must be a zero terminated UTF-8 string of length buf_len.
-   Return NULL if error and allocate an error message in *perror_msg,
-   otherwise the compiled bytecode and its length in plen.
-*/
-uint8_t *lre_compile(int *plen, char *error_msg, int error_msg_size,
-                     const char *buf, size_t buf_len, int re_flags,
-                     void *opaque)
-{
-    REParseState s_s, *s = &s_s;
-    int stack_size;
-    BOOL is_sticky;
-    
-    memset(s, 0, sizeof(*s));
-    s->mem_opaque = opaque;
-    s->buf_ptr = (const uint8_t *)buf;
-    s->buf_end = s->buf_ptr + buf_len;
-    s->buf_start = s->buf_ptr;
-    s->re_flags = re_flags;
-    s->is_utf16 = ((re_flags & LRE_FLAG_UTF16) != 0);
-    is_sticky = ((re_flags & LRE_FLAG_STICKY) != 0);
-    s->ignore_case = ((re_flags & LRE_FLAG_IGNORECASE) != 0);
-    s->dotall = ((re_flags & LRE_FLAG_DOTALL) != 0);
-    s->capture_count = 1;
-    s->total_capture_count = -1;
-    s->has_named_captures = -1;
-    
-    dbuf_init2(&s->byte_code, opaque, lre_realloc);
-    dbuf_init2(&s->group_names, opaque, lre_realloc);
-
-    dbuf_putc(&s->byte_code, re_flags); /* first element is the flags */
-    dbuf_putc(&s->byte_code, 0); /* second element is the number of captures */
-    dbuf_putc(&s->byte_code, 0); /* stack size */
-    dbuf_put_u32(&s->byte_code, 0); /* bytecode length */
-    
-    if (!is_sticky) {
-        /* iterate thru all positions (about the same as .*?( ... ) )
-           .  We do it without an explicit loop so that lock step
-           thread execution will be possible in an optimized
-           implementation */
-        re_emit_op_u32(s, REOP_split_goto_first, 1 + 5);
-        re_emit_op(s, REOP_any);
-        re_emit_op_u32(s, REOP_goto, -(5 + 1 + 5));
-    }
-    re_emit_op_u8(s, REOP_save_start, 0);
-
-    if (re_parse_disjunction(s, FALSE)) {
-    error:
-        dbuf_free(&s->byte_code);
-        dbuf_free(&s->group_names);
-        pstrcpy(error_msg, error_msg_size, s->u.error_msg);
-        *plen = 0;
-        return NULL;
-    }
-
-    re_emit_op_u8(s, REOP_save_end, 0);
-    
-    re_emit_op(s, REOP_match);
-
-    if (*s->buf_ptr != '\0') {
-        re_parse_error(s, "extraneous characters at the end");
-        goto error;
-    }
-
-    if (dbuf_error(&s->byte_code)) {
-        re_parse_error(s, "out of memory");
-        goto error;
-    }
-    
-    stack_size = compute_stack_size(s->byte_code.buf, s->byte_code.size);
-    if (stack_size < 0) {
-        re_parse_error(s, "too many imbricated quantifiers");
-        goto error;
-    }
-    
-    s->byte_code.buf[RE_HEADER_CAPTURE_COUNT] = s->capture_count;
-    s->byte_code.buf[RE_HEADER_STACK_SIZE] = stack_size;
-    put_u32(s->byte_code.buf + 3, s->byte_code.size - RE_HEADER_LEN);
-
-    /* add the named groups if needed */
-    if (s->group_names.size > (s->capture_count - 1)) {
-        dbuf_put(&s->byte_code, s->group_names.buf, s->group_names.size);
-        s->byte_code.buf[RE_HEADER_FLAGS] |= LRE_FLAG_NAMED_GROUPS;
-    }
-    dbuf_free(&s->group_names);
-    
-#ifdef DUMP_REOP
-    lre_dump_bytecode(s->byte_code.buf, s->byte_code.size);
-#endif
-    
-    error_msg[0] = '\0';
-    *plen = s->byte_code.size;
-    return s->byte_code.buf;
-}
-
-static BOOL is_line_terminator(uint32_t c)
-{
-    return (c == '\n' || c == '\r' || c == CP_LS || c == CP_PS);
-}
-
-static BOOL is_word_char(uint32_t c)
-{
-    return ((c >= '0' && c <= '9') ||
-            (c >= 'a' && c <= 'z') ||
-            (c >= 'A' && c <= 'Z') ||
-            (c == '_'));
-}
-
-#define GET_CHAR(c, cptr, cbuf_end)                                     \
-    do {                                                                \
-        if (cbuf_type == 0) {                                           \
-            c = *cptr++;                                                \
-        } else {                                                        \
-            uint32_t __c1;                                              \
-            c = *(uint16_t *)cptr;                                      \
-            cptr += 2;                                                  \
-            if (c >= 0xd800 && c < 0xdc00 &&                            \
-                cbuf_type == 2 && cptr < cbuf_end) {                    \
-                __c1 = *(uint16_t *)cptr;                               \
-                if (__c1 >= 0xdc00 && __c1 < 0xe000) {                  \
-                    c = (((c & 0x3ff) << 10) | (__c1 & 0x3ff)) + 0x10000; \
-                    cptr += 2;                                          \
-                }                                                       \
-            }                                                           \
-        }                                                               \
-    } while (0)
-
-#define PEEK_CHAR(c, cptr, cbuf_end)             \
-    do {                                         \
-        if (cbuf_type == 0) {                    \
-            c = cptr[0];                         \
-        } else {                                 \
-            uint32_t __c1;                                              \
-            c = ((uint16_t *)cptr)[0];                                  \
-            if (c >= 0xd800 && c < 0xdc00 &&                            \
-                cbuf_type == 2 && (cptr + 2) < cbuf_end) {              \
-                __c1 = ((uint16_t *)cptr)[1];                           \
-                if (__c1 >= 0xdc00 && __c1 < 0xe000) {                  \
-                    c = (((c & 0x3ff) << 10) | (__c1 & 0x3ff)) + 0x10000; \
-                }                                                       \
-            }                                                           \
-        }                                        \
-    } while (0)
-
-#define PEEK_PREV_CHAR(c, cptr, cbuf_start)                 \
-    do {                                         \
-        if (cbuf_type == 0) {                    \
-            c = cptr[-1];                        \
-        } else {                                 \
-            uint32_t __c1;                                              \
-            c = ((uint16_t *)cptr)[-1];                                 \
-            if (c >= 0xdc00 && c < 0xe000 &&                            \
-                cbuf_type == 2 && (cptr - 4) >= cbuf_start) {              \
-                __c1 = ((uint16_t *)cptr)[-2];                          \
-                if (__c1 >= 0xd800 && __c1 < 0xdc00 ) {                 \
-                    c = (((__c1 & 0x3ff) << 10) | (c & 0x3ff)) + 0x10000; \
-                }                                                       \
-            }                                                           \
-        }                                                               \
-    } while (0)
-
-#define GET_PREV_CHAR(c, cptr, cbuf_start)       \
-    do {                                         \
-        if (cbuf_type == 0) {                    \
-            cptr--;                              \
-            c = cptr[0];                         \
-        } else {                                 \
-            uint32_t __c1;                                              \
-            cptr -= 2;                                                  \
-            c = ((uint16_t *)cptr)[0];                                 \
-            if (c >= 0xdc00 && c < 0xe000 &&                            \
-                cbuf_type == 2 && cptr > cbuf_start) {                  \
-                __c1 = ((uint16_t *)cptr)[-1];                          \
-                if (__c1 >= 0xd800 && __c1 < 0xdc00 ) {                 \
-                    cptr -= 2;                                          \
-                    c = (((__c1 & 0x3ff) << 10) | (c & 0x3ff)) + 0x10000; \
-                }                                                       \
-            }                                                           \
-        }                                                               \
-    } while (0)
-
-#define PREV_CHAR(cptr, cbuf_start)       \
-    do {                                  \
-        if (cbuf_type == 0) {             \
-            cptr--;                       \
-        } else {                          \
-            cptr -= 2;                          \
-            if (cbuf_type == 2) {                                       \
-                c = ((uint16_t *)cptr)[0];                              \
-                if (c >= 0xdc00 && c < 0xe000 && cptr > cbuf_start) {   \
-                    c = ((uint16_t *)cptr)[-1];                         \
-                    if (c >= 0xd800 && c < 0xdc00)                      \
-                        cptr -= 2;                                      \
-                }                                                       \
-            }                                                           \
-        }                                                               \
-    } while (0)
-
-typedef uintptr_t StackInt;
-
-typedef enum {
-    RE_EXEC_STATE_SPLIT,
-    RE_EXEC_STATE_LOOKAHEAD,
-    RE_EXEC_STATE_NEGATIVE_LOOKAHEAD,
-    RE_EXEC_STATE_GREEDY_QUANT,
-} REExecStateEnum;
-
-typedef struct REExecState {
-    REExecStateEnum type : 8;
-    uint8_t stack_len;
-    size_t count; /* only used for RE_EXEC_STATE_GREEDY_QUANT */
-    const uint8_t *cptr;
-    const uint8_t *pc;
-    void *buf[0];
-} REExecState;
-
-typedef struct {
-    const uint8_t *cbuf;
-    const uint8_t *cbuf_end;
-    /* 0 = 8 bit chars, 1 = 16 bit chars, 2 = 16 bit chars, UTF-16 */
-    int cbuf_type; 
-    int capture_count;
-    int stack_size_max;
-    BOOL multi_line;
-    BOOL ignore_case;
-    BOOL is_utf16;
-    void *opaque; /* used for stack overflow check */
-
-    size_t state_size;
-    uint8_t *state_stack;
-    size_t state_stack_size;
-    size_t state_stack_len;
-} REExecContext;
-
-static int push_state(REExecContext *s,
-                      uint8_t **capture,
-                      StackInt *stack, size_t stack_len,
-                      const uint8_t *pc, const uint8_t *cptr,
-                      REExecStateEnum type, size_t count)
-{
-    REExecState *rs;
-    uint8_t *new_stack;
-    size_t new_size, i, n;
-    StackInt *stack_buf;
-
-    if (unlikely((s->state_stack_len + 1) > s->state_stack_size)) {
-        /* reallocate the stack */
-        new_size = s->state_stack_size * 3 / 2;
-        if (new_size < 8)
-            new_size = 8;
-        new_stack = lre_realloc(s->opaque, s->state_stack, new_size * s->state_size);
-        if (!new_stack)
-            return -1;
-        s->state_stack_size = new_size;
-        s->state_stack = new_stack;
-    }
-    rs = (REExecState *)(s->state_stack + s->state_stack_len * s->state_size);
-    s->state_stack_len++;
-    rs->type = type;
-    rs->count = count;
-    rs->stack_len = stack_len;
-    rs->cptr = cptr;
-    rs->pc = pc;
-    n = 2 * s->capture_count;
-    for(i = 0; i < n; i++)
-        rs->buf[i] = capture[i];
-    stack_buf = (StackInt *)(rs->buf + n);
-    for(i = 0; i < stack_len; i++)
-        stack_buf[i] = stack[i];
-    return 0;
-}
-
-/* return 1 if match, 0 if not match or -1 if error. */
-static intptr_t lre_exec_backtrack(REExecContext *s, uint8_t **capture,
-                                   StackInt *stack, int stack_len,
-                                   const uint8_t *pc, const uint8_t *cptr,
-                                   BOOL no_recurse)
-{
-    int opcode, ret;
-    int cbuf_type;
-    uint32_t val, c;
-    const uint8_t *cbuf_end;
-    
-    cbuf_type = s->cbuf_type;
-    cbuf_end = s->cbuf_end;
-
-    for(;;) {
-        //        printf("top=%p: pc=%d\n", th_list.top, (int)(pc - (bc_buf + RE_HEADER_LEN)));
-        opcode = *pc++;
-        switch(opcode) {
-        case REOP_match:
-            {
-                REExecState *rs;
-                if (no_recurse)
-                    return (intptr_t)cptr;
-                ret = 1;
-                goto recurse;
-            no_match:
-                if (no_recurse)
-                    return 0;
-                ret = 0;
-            recurse:
-                for(;;) {
-                    if (s->state_stack_len == 0)
-                        return ret;
-                    rs = (REExecState *)(s->state_stack +
-                                         (s->state_stack_len - 1) * s->state_size);
-                    if (rs->type == RE_EXEC_STATE_SPLIT) {
-                        if (!ret) {
-                        pop_state:
-                            memcpy(capture, rs->buf,
-                                   sizeof(capture[0]) * 2 * s->capture_count);
-                        pop_state1:
-                            pc = rs->pc;
-                            cptr = rs->cptr;
-                            stack_len = rs->stack_len;
-                            memcpy(stack, rs->buf + 2 * s->capture_count,
-                                   stack_len * sizeof(stack[0]));
-                            s->state_stack_len--;
-                            break;
-                        }
-                    } else if (rs->type == RE_EXEC_STATE_GREEDY_QUANT) {
-                        if (!ret) {
-                            uint32_t char_count, i;
-                            memcpy(capture, rs->buf,
-                                   sizeof(capture[0]) * 2 * s->capture_count);
-                            stack_len = rs->stack_len;
-                            memcpy(stack, rs->buf + 2 * s->capture_count,
-                                   stack_len * sizeof(stack[0]));
-                            pc = rs->pc;
-                            cptr = rs->cptr;
-                            /* go backward */
-                            char_count = get_u32(pc + 12);
-                            for(i = 0; i < char_count; i++) {
-                                PREV_CHAR(cptr, s->cbuf);
-                            }
-                            pc = (pc + 16) + (int)get_u32(pc);
-                            rs->cptr = cptr;
-                            rs->count--;
-                            if (rs->count == 0) {
-                                s->state_stack_len--;
-                            }
-                            break;
-                        }
-                    } else {
-                        ret = ((rs->type == RE_EXEC_STATE_LOOKAHEAD && ret) ||
-                               (rs->type == RE_EXEC_STATE_NEGATIVE_LOOKAHEAD && !ret));
-                        if (ret) {
-                            /* keep the capture in case of positive lookahead */
-                            if (rs->type == RE_EXEC_STATE_LOOKAHEAD)
-                                goto pop_state1;
-                            else
-                                goto pop_state;
-                        }
-                    }
-                    s->state_stack_len--;
-                }
-            }
-            break;
-        case REOP_char32:
-            val = get_u32(pc);
-            pc += 4;
-            goto test_char;
-        case REOP_char:
-            val = get_u16(pc);
-            pc += 2;
-        test_char:
-            if (cptr >= cbuf_end)
-                goto no_match;
-            GET_CHAR(c, cptr, cbuf_end);
-            if (s->ignore_case) {
-                c = lre_canonicalize(c, s->is_utf16);
-            }
-            if (val != c)
-                goto no_match;
-            break;
-        case REOP_split_goto_first:
-        case REOP_split_next_first:
-            {
-                const uint8_t *pc1;
-                
-                val = get_u32(pc);
-                pc += 4;
-                if (opcode == REOP_split_next_first) {
-                    pc1 = pc + (int)val;
-                } else {
-                    pc1 = pc;
-                    pc = pc + (int)val;
-                }
-                ret = push_state(s, capture, stack, stack_len,
-                                 pc1, cptr, RE_EXEC_STATE_SPLIT, 0);
-                if (ret < 0)
-                    return -1;
-                break;
-            }
-        case REOP_lookahead:
-        case REOP_negative_lookahead:
-            val = get_u32(pc);
-            pc += 4;
-            ret = push_state(s, capture, stack, stack_len,
-                             pc + (int)val, cptr,
-                             RE_EXEC_STATE_LOOKAHEAD + opcode - REOP_lookahead,
-                             0);
-            if (ret < 0)
-                return -1;
-            break;
-            
-        case REOP_goto:
-            val = get_u32(pc);
-            pc += 4 + (int)val;
-            break;
-        case REOP_line_start:
-            if (cptr == s->cbuf)
-                break;
-            if (!s->multi_line)
-                goto no_match;
-            PEEK_PREV_CHAR(c, cptr, s->cbuf);
-            if (!is_line_terminator(c))
-                goto no_match;
-            break;
-        case REOP_line_end:
-            if (cptr == cbuf_end)
-                break;
-            if (!s->multi_line)
-                goto no_match;
-            PEEK_CHAR(c, cptr, cbuf_end);
-            if (!is_line_terminator(c))
-                goto no_match;
-            break;
-        case REOP_dot:
-            if (cptr == cbuf_end)
-                goto no_match;
-            GET_CHAR(c, cptr, cbuf_end);
-            if (is_line_terminator(c))
-                goto no_match;
-            break;
-        case REOP_any:
-            if (cptr == cbuf_end)
-                goto no_match;
-            GET_CHAR(c, cptr, cbuf_end);
-            break;
-        case REOP_save_start:
-        case REOP_save_end:
-            val = *pc++;
-            assert(val < s->capture_count);
-            capture[2 * val + opcode - REOP_save_start] = (uint8_t *)cptr;
-            break;
-        case REOP_save_reset:
-            {
-                uint32_t val2;
-                val = pc[0];
-                val2 = pc[1];
-                pc += 2;
-                assert(val2 < s->capture_count);
-                while (val <= val2) {
-                    capture[2 * val] = NULL;
-                    capture[2 * val + 1] = NULL;
-                    val++;
-                }
-            }
-            break;
-        case REOP_push_i32:
-            val = get_u32(pc);
-            pc += 4;
-            stack[stack_len++] = val;
-            break;
-        case REOP_drop:
-            stack_len--;
-            break;
-        case REOP_loop:
-            val = get_u32(pc);
-            pc += 4;
-            if (--stack[stack_len - 1] != 0) {
-                pc += (int)val;
-            }
-            break;
-        case REOP_push_char_pos:
-            stack[stack_len++] = (uintptr_t)cptr;
-            break;
-        case REOP_bne_char_pos:
-            val = get_u32(pc);
-            pc += 4;
-            if (stack[--stack_len] != (uintptr_t)cptr)
-                pc += (int)val;
-            break;
-        case REOP_word_boundary:
-        case REOP_not_word_boundary:
-            {
-                BOOL v1, v2;
-                /* char before */
-                if (cptr == s->cbuf) {
-                    v1 = FALSE;
-                } else {
-                    PEEK_PREV_CHAR(c, cptr, s->cbuf);
-                    v1 = is_word_char(c);
-                }
-                /* current char */
-                if (cptr >= cbuf_end) {
-                    v2 = FALSE;
-                } else {
-                    PEEK_CHAR(c, cptr, cbuf_end);
-                    v2 = is_word_char(c);
-                }
-                if (v1 ^ v2 ^ (REOP_not_word_boundary - opcode))
-                    goto no_match;
-            }
-            break;
-        case REOP_back_reference:
-        case REOP_backward_back_reference:
-            {
-                const uint8_t *cptr1, *cptr1_end, *cptr1_start;
-                uint32_t c1, c2;
-                
-                val = *pc++;
-                if (val >= s->capture_count)
-                    goto no_match;
-                cptr1_start = capture[2 * val];
-                cptr1_end = capture[2 * val + 1];
-                if (!cptr1_start || !cptr1_end)
-                    break;
-                if (opcode == REOP_back_reference) {
-                    cptr1 = cptr1_start;
-                    while (cptr1 < cptr1_end) {
-                        if (cptr >= cbuf_end)
-                            goto no_match;
-                        GET_CHAR(c1, cptr1, cptr1_end);
-                        GET_CHAR(c2, cptr, cbuf_end);
-                        if (s->ignore_case) {
-                            c1 = lre_canonicalize(c1, s->is_utf16);
-                            c2 = lre_canonicalize(c2, s->is_utf16);
-                        }
-                        if (c1 != c2)
-                            goto no_match;
-                    }
-                } else {
-                    cptr1 = cptr1_end;
-                    while (cptr1 > cptr1_start) {
-                        if (cptr == s->cbuf)
-                            goto no_match;
-                        GET_PREV_CHAR(c1, cptr1, cptr1_start);
-                        GET_PREV_CHAR(c2, cptr, s->cbuf);
-                        if (s->ignore_case) {
-                            c1 = lre_canonicalize(c1, s->is_utf16);
-                            c2 = lre_canonicalize(c2, s->is_utf16);
-                        }
-                        if (c1 != c2)
-                            goto no_match;
-                    }
-                }
-            }
-            break;
-        case REOP_range:
-            {
-                int n;
-                uint32_t low, high, idx_min, idx_max, idx;
-                
-                n = get_u16(pc); /* n must be >= 1 */
-                pc += 2;
-                if (cptr >= cbuf_end)
-                    goto no_match;
-                GET_CHAR(c, cptr, cbuf_end);
-                if (s->ignore_case) {
-                    c = lre_canonicalize(c, s->is_utf16);
-                }
-                idx_min = 0;
-                low = get_u16(pc + 0 * 4);
-                if (c < low)
-                    goto no_match;
-                idx_max = n - 1;
-                high = get_u16(pc + idx_max * 4 + 2);
-                /* 0xffff in for last value means +infinity */
-                if (unlikely(c >= 0xffff) && high == 0xffff)
-                    goto range_match;
-                if (c > high)
-                    goto no_match;
-                while (idx_min <= idx_max) {
-                    idx = (idx_min + idx_max) / 2;
-                    low = get_u16(pc + idx * 4);
-                    high = get_u16(pc + idx * 4 + 2);
-                    if (c < low)
-                        idx_max = idx - 1;
-                    else if (c > high)
-                        idx_min = idx + 1;
-                    else
-                        goto range_match;
-                }
-                goto no_match;
-            range_match:
-                pc += 4 * n;
-            }
-            break;
-        case REOP_range32:
-            {
-                int n;
-                uint32_t low, high, idx_min, idx_max, idx;
-                
-                n = get_u16(pc); /* n must be >= 1 */
-                pc += 2;
-                if (cptr >= cbuf_end)
-                    goto no_match;
-                GET_CHAR(c, cptr, cbuf_end);
-                if (s->ignore_case) {
-                    c = lre_canonicalize(c, s->is_utf16);
-                }
-                idx_min = 0;
-                low = get_u32(pc + 0 * 8);
-                if (c < low)
-                    goto no_match;
-                idx_max = n - 1;
-                high = get_u32(pc + idx_max * 8 + 4);
-                if (c > high)
-                    goto no_match;
-                while (idx_min <= idx_max) {
-                    idx = (idx_min + idx_max) / 2;
-                    low = get_u32(pc + idx * 8);
-                    high = get_u32(pc + idx * 8 + 4);
-                    if (c < low)
-                        idx_max = idx - 1;
-                    else if (c > high)
-                        idx_min = idx + 1;
-                    else
-                        goto range32_match;
-                }
-                goto no_match;
-            range32_match:
-                pc += 8 * n;
-            }
-            break;
-        case REOP_prev:
-            /* go to the previous char */
-            if (cptr == s->cbuf)
-                goto no_match;
-            PREV_CHAR(cptr, s->cbuf);
-            break;
-        case REOP_simple_greedy_quant:
-            {
-                uint32_t next_pos, quant_min, quant_max;
-                size_t q;
-                intptr_t res;
-                const uint8_t *pc1;
-                
-                next_pos = get_u32(pc);
-                quant_min = get_u32(pc + 4);
-                quant_max = get_u32(pc + 8);
-                pc += 16;
-                pc1 = pc;
-                pc += (int)next_pos;
-                
-                q = 0;
-                for(;;) {
-                    res = lre_exec_backtrack(s, capture, stack, stack_len,
-                                             pc1, cptr, TRUE);
-                    if (res == -1)
-                        return res;
-                    if (!res)
-                        break;
-                    cptr = (uint8_t *)res;
-                    q++;
-                    if (q >= quant_max && quant_max != INT32_MAX)
-                        break;
-                }
-                if (q < quant_min)
-                    goto no_match;
-                if (q > quant_min) {
-                    /* will examine all matches down to quant_min */
-                    ret = push_state(s, capture, stack, stack_len,
-                                     pc1 - 16, cptr,
-                                     RE_EXEC_STATE_GREEDY_QUANT,
-                                     q - quant_min);
-                    if (ret < 0)
-                        return -1;
-                }
-            }
-            break;
-        default:
-            abort();
-        }
-    }
-}
-
-/* Return 1 if match, 0 if not match or -1 if error. cindex is the
-   starting position of the match and must be such as 0 <= cindex <=
-   clen. */
-int lre_exec(uint8_t **capture,
-             const uint8_t *bc_buf, const uint8_t *cbuf, int cindex, int clen,
-             int cbuf_type, void *opaque)
-{
-    REExecContext s_s, *s = &s_s;
-    int re_flags, i, alloca_size, ret;
-    StackInt *stack_buf;
-    
-    re_flags = bc_buf[RE_HEADER_FLAGS];
-    s->multi_line = (re_flags & LRE_FLAG_MULTILINE) != 0;
-    s->ignore_case = (re_flags & LRE_FLAG_IGNORECASE) != 0;
-    s->is_utf16 = (re_flags & LRE_FLAG_UTF16) != 0;
-    s->capture_count = bc_buf[RE_HEADER_CAPTURE_COUNT];
-    s->stack_size_max = bc_buf[RE_HEADER_STACK_SIZE];
-    s->cbuf = cbuf;
-    s->cbuf_end = cbuf + (clen << cbuf_type);
-    s->cbuf_type = cbuf_type;
-    if (s->cbuf_type == 1 && s->is_utf16)
-        s->cbuf_type = 2;
-    s->opaque = opaque;
-
-    s->state_size = sizeof(REExecState) +
-        s->capture_count * sizeof(capture[0]) * 2 +
-        s->stack_size_max * sizeof(stack_buf[0]);
-    s->state_stack = NULL;
-    s->state_stack_len = 0;
-    s->state_stack_size = 0;
-    
-    for(i = 0; i < s->capture_count * 2; i++)
-        capture[i] = NULL;
-    alloca_size = s->stack_size_max * sizeof(stack_buf[0]);
-    stack_buf = alloca(alloca_size);
-    ret = lre_exec_backtrack(s, capture, stack_buf, 0, bc_buf + RE_HEADER_LEN,
-                             cbuf + (cindex << cbuf_type), FALSE);
-    lre_realloc(s->opaque, s->state_stack, 0);
-    return ret;
-}
-
-int lre_get_capture_count(const uint8_t *bc_buf)
-{
-    return bc_buf[RE_HEADER_CAPTURE_COUNT];
-}
-
-int lre_get_flags(const uint8_t *bc_buf)
-{
-    return bc_buf[RE_HEADER_FLAGS];
-}
-
-#ifdef TEST
-
-BOOL lre_check_stack_overflow(void *opaque, size_t alloca_size)
-{
-    return FALSE;
-}
-
-void *lre_realloc(void *opaque, void *ptr, size_t size)
-{
-    return realloc(ptr, size);
-}
-
-int main(int argc, char **argv)
-{
-    int len, ret, i;
-    uint8_t *bc;
-    char error_msg[64];
-    uint8_t *capture[CAPTURE_COUNT_MAX * 2];
-    const char *input;
-    int input_len, capture_count;
-    
-    if (argc < 3) {
-        printf("usage: %s regexp input\n", argv[0]);
-        exit(1);
-    }
-    bc = lre_compile(&len, error_msg, sizeof(error_msg), argv[1],
-                     strlen(argv[1]), 0, NULL);
-    if (!bc) {
-        fprintf(stderr, "error: %s\n", error_msg);
-        exit(1);
-    }
-
-    input = argv[2];
-    input_len = strlen(input);
-    
-    ret = lre_exec(capture, bc, (uint8_t *)input, 0, input_len, 0, NULL);
-    printf("ret=%d\n", ret);
-    if (ret == 1) {
-        capture_count = lre_get_capture_count(bc);
-        for(i = 0; i < 2 * capture_count; i++) {
-            uint8_t *ptr;
-            ptr = capture[i];
-            printf("%d: ", i);
-            if (!ptr)
-                printf("<nil>");
-            else
-                printf("%u", (int)(ptr - (uint8_t *)input));
-            printf("\n");
-        }
-    }
-    return 0;
-}
-#endif
diff --git a/third-party/libregexp.h b/third-party/libregexp.h
deleted file mode 100644
index cd0b24f..0000000
--- a/third-party/libregexp.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Regular Expression Engine
- * 
- * Copyright (c) 2017-2018 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#ifndef LIBREGEXP_H
-#define LIBREGEXP_H
-
-#include <stddef.h>
-
-#include "libunicode.h"
-
-#define LRE_BOOL  int       /* for documentation purposes */
-
-#define LRE_FLAG_GLOBAL     (1 << 0)
-#define LRE_FLAG_IGNORECASE (1 << 1)
-#define LRE_FLAG_MULTILINE  (1 << 2)
-#define LRE_FLAG_DOTALL     (1 << 3)
-#define LRE_FLAG_UTF16      (1 << 4)
-#define LRE_FLAG_STICKY     (1 << 5)
-
-#define LRE_FLAG_NAMED_GROUPS (1 << 7) /* named groups are present in the regexp */
-
-uint8_t *lre_compile(int *plen, char *error_msg, int error_msg_size,
-                     const char *buf, size_t buf_len, int re_flags,
-                     void *opaque);
-int lre_get_capture_count(const uint8_t *bc_buf);
-int lre_get_flags(const uint8_t *bc_buf);
-int lre_exec(uint8_t **capture,
-             const uint8_t *bc_buf, const uint8_t *cbuf, int cindex, int clen,
-             int cbuf_type, void *opaque);
-
-int lre_parse_escape(const uint8_t **pp, int allow_utf16);
-LRE_BOOL lre_is_space(int c);
-
-/* must be provided by the user */
-LRE_BOOL lre_check_stack_overflow(void *opaque, size_t alloca_size); 
-void *lre_realloc(void *opaque, void *ptr, size_t size);
-
-/* JS identifier test */
-extern uint32_t const lre_id_start_table_ascii[4];
-extern uint32_t const lre_id_continue_table_ascii[4];
-
-static inline int lre_js_is_ident_first(int c)
-{
-    if ((uint32_t)c < 128) {
-        return (lre_id_start_table_ascii[c >> 5] >> (c & 31)) & 1;
-    } else {
-#ifdef CONFIG_ALL_UNICODE
-        return lre_is_id_start(c);
-#else
-        return !lre_is_space(c);
-#endif
-    }
-}
-
-static inline int lre_js_is_ident_next(int c)
-{
-    if ((uint32_t)c < 128) {
-        return (lre_id_continue_table_ascii[c >> 5] >> (c & 31)) & 1;
-    } else {
-        /* ZWNJ and ZWJ are accepted in identifiers */
-#ifdef CONFIG_ALL_UNICODE
-        return lre_is_id_continue(c) || c == 0x200C || c == 0x200D;
-#else
-        return !lre_is_space(c) || c == 0x200C || c == 0x200D;
-#endif
-    }
-}
-
-#undef LRE_BOOL
-
-#endif /* LIBREGEXP_H */
diff --git a/third-party/libunicode-table.h b/third-party/libunicode-table.h
deleted file mode 100644
index 521f2f3..0000000
--- a/third-party/libunicode-table.h
+++ /dev/null
@@ -1,4313 +0,0 @@
-/* Compressed unicode tables */
-/* Automatically generated file - do not edit */
-
-#include <stdint.h>
-
-static const uint32_t case_conv_table1[359] = {
-    0x00209a30, 0x00309a00, 0x005a8173, 0x00601730,
-    0x006c0730, 0x006f81b3, 0x00701700, 0x007c0700,
-    0x007f8100, 0x00803040, 0x009801c3, 0x00988190,
-    0x00990640, 0x009c9040, 0x00a481b4, 0x00a52e40,
-    0x00bc0130, 0x00bc8640, 0x00bf8170, 0x00c00100,
-    0x00c08130, 0x00c10440, 0x00c30130, 0x00c38240,
-    0x00c48230, 0x00c58240, 0x00c70130, 0x00c78130,
-    0x00c80130, 0x00c88240, 0x00c98130, 0x00ca0130,
-    0x00ca8100, 0x00cb0130, 0x00cb8130, 0x00cc0240,
-    0x00cd0100, 0x00ce0130, 0x00ce8130, 0x00cf0100,
-    0x00cf8130, 0x00d00640, 0x00d30130, 0x00d38240,
-    0x00d48130, 0x00d60240, 0x00d70130, 0x00d78240,
-    0x00d88230, 0x00d98440, 0x00db8130, 0x00dc0240,
-    0x00de0240, 0x00df8100, 0x00e20350, 0x00e38350,
-    0x00e50350, 0x00e69040, 0x00ee8100, 0x00ef1240,
-    0x00f801b4, 0x00f88350, 0x00fa0240, 0x00fb0130,
-    0x00fb8130, 0x00fc2840, 0x01100130, 0x01111240,
-    0x011d0131, 0x011d8240, 0x011e8130, 0x011f0131,
-    0x011f8201, 0x01208240, 0x01218130, 0x01220130,
-    0x01228130, 0x01230a40, 0x01280101, 0x01288101,
-    0x01290101, 0x01298100, 0x012a0100, 0x012b0200,
-    0x012c8100, 0x012d8100, 0x012e0101, 0x01300100,
-    0x01308101, 0x01318100, 0x01328101, 0x01330101,
-    0x01340100, 0x01348100, 0x01350101, 0x01358101,
-    0x01360101, 0x01378100, 0x01388101, 0x01390100,
-    0x013a8100, 0x013e8101, 0x01400100, 0x01410101,
-    0x01418100, 0x01438101, 0x01440100, 0x01448100,
-    0x01450200, 0x01460100, 0x01490100, 0x014e8101,
-    0x014f0101, 0x01a28173, 0x01b80440, 0x01bb0240,
-    0x01bd8300, 0x01bf8130, 0x01c30130, 0x01c40330,
-    0x01c60130, 0x01c70230, 0x01c801d0, 0x01c89130,
-    0x01d18930, 0x01d60100, 0x01d68300, 0x01d801d3,
-    0x01d89100, 0x01e10173, 0x01e18900, 0x01e60100,
-    0x01e68200, 0x01e78130, 0x01e80173, 0x01e88173,
-    0x01ea8173, 0x01eb0173, 0x01eb8100, 0x01ec1840,
-    0x01f80173, 0x01f88173, 0x01f90100, 0x01f98100,
-    0x01fa01a0, 0x01fa8173, 0x01fb8240, 0x01fc8130,
-    0x01fd0240, 0x01fe8330, 0x02001030, 0x02082030,
-    0x02182000, 0x02281000, 0x02302240, 0x02453640,
-    0x02600130, 0x02608e40, 0x02678100, 0x02686040,
-    0x0298a630, 0x02b0a600, 0x02c381b5, 0x08502631,
-    0x08638131, 0x08668131, 0x08682b00, 0x087e8300,
-    0x09d05011, 0x09f80610, 0x09fc0620, 0x0e400174,
-    0x0e408174, 0x0e410174, 0x0e418174, 0x0e420174,
-    0x0e428174, 0x0e430174, 0x0e438180, 0x0e440180,
-    0x0e482b30, 0x0e5e8330, 0x0ebc8101, 0x0ebe8101,
-    0x0ec70101, 0x0f007e40, 0x0f3f1840, 0x0f4b01b5,
-    0x0f4b81b6, 0x0f4c01b6, 0x0f4c81b6, 0x0f4d01b7,
-    0x0f4d8180, 0x0f4f0130, 0x0f506040, 0x0f800800,
-    0x0f840830, 0x0f880600, 0x0f8c0630, 0x0f900800,
-    0x0f940830, 0x0f980800, 0x0f9c0830, 0x0fa00600,
-    0x0fa40630, 0x0fa801b0, 0x0fa88100, 0x0fa901d3,
-    0x0fa98100, 0x0faa01d3, 0x0faa8100, 0x0fab01d3,
-    0x0fab8100, 0x0fac8130, 0x0fad8130, 0x0fae8130,
-    0x0faf8130, 0x0fb00800, 0x0fb40830, 0x0fb80200,
-    0x0fb90400, 0x0fbb0200, 0x0fbc0201, 0x0fbd0201,
-    0x0fbe0201, 0x0fc008b7, 0x0fc40867, 0x0fc808b8,
-    0x0fcc0868, 0x0fd008b8, 0x0fd40868, 0x0fd80200,
-    0x0fd901b9, 0x0fd981b1, 0x0fda01b9, 0x0fdb01b1,
-    0x0fdb81d7, 0x0fdc0230, 0x0fdd0230, 0x0fde0161,
-    0x0fdf0173, 0x0fe101b9, 0x0fe181b2, 0x0fe201ba,
-    0x0fe301b2, 0x0fe381d8, 0x0fe40430, 0x0fe60162,
-    0x0fe80200, 0x0fe901d0, 0x0fe981d0, 0x0feb01b0,
-    0x0feb81d0, 0x0fec0230, 0x0fed0230, 0x0ff00201,
-    0x0ff101d3, 0x0ff181d3, 0x0ff201ba, 0x0ff28101,
-    0x0ff301b0, 0x0ff381d3, 0x0ff40230, 0x0ff50230,
-    0x0ff60131, 0x0ff901ba, 0x0ff981b2, 0x0ffa01bb,
-    0x0ffb01b2, 0x0ffb81d9, 0x0ffc0230, 0x0ffd0230,
-    0x0ffe0162, 0x109301a0, 0x109501a0, 0x109581a0,
-    0x10990131, 0x10a70101, 0x10b01031, 0x10b81001,
-    0x10c18240, 0x125b1a31, 0x12681a01, 0x16002f31,
-    0x16182f01, 0x16300240, 0x16310130, 0x16318130,
-    0x16320130, 0x16328100, 0x16330100, 0x16338640,
-    0x16368130, 0x16370130, 0x16378130, 0x16380130,
-    0x16390240, 0x163a8240, 0x163f0230, 0x16406440,
-    0x16758440, 0x16790240, 0x16802600, 0x16938100,
-    0x16968100, 0x53202e40, 0x53401c40, 0x53910e40,
-    0x53993e40, 0x53bc8440, 0x53be8130, 0x53bf0a40,
-    0x53c58240, 0x53c68130, 0x53c80440, 0x53ca0101,
-    0x53cb1440, 0x53d50130, 0x53d58130, 0x53d60130,
-    0x53d68130, 0x53d70130, 0x53d80130, 0x53d88130,
-    0x53d90130, 0x53d98131, 0x53da0c40, 0x53e10240,
-    0x53e20131, 0x53e28130, 0x53e30130, 0x55a98101,
-    0x55b85020, 0x7d8001b2, 0x7d8081b2, 0x7d8101b2,
-    0x7d8181da, 0x7d8201da, 0x7d8281b3, 0x7d8301b3,
-    0x7d8981bb, 0x7d8a01bb, 0x7d8a81bb, 0x7d8b01bc,
-    0x7d8b81bb, 0x7f909a31, 0x7fa09a01, 0x82002831,
-    0x82142801, 0x82582431, 0x826c2401, 0x86403331,
-    0x86603301, 0x8c502031, 0x8c602001, 0xb7202031,
-    0xb7302001, 0xf4802231, 0xf4912201,
-};
-
-static const uint8_t case_conv_table2[359] = {
-    0x01, 0x00, 0x9c, 0x06, 0x07, 0x4d, 0x03, 0x04,
-    0x10, 0x00, 0x8f, 0x0b, 0x00, 0x00, 0x11, 0x00,
-    0x08, 0x00, 0x53, 0x4a, 0x51, 0x00, 0x52, 0x00,
-    0x53, 0x00, 0x3a, 0x54, 0x55, 0x00, 0x57, 0x59,
-    0x3f, 0x5d, 0x5c, 0x00, 0x46, 0x61, 0x63, 0x42,
-    0x64, 0x00, 0x66, 0x00, 0x68, 0x00, 0x6a, 0x00,
-    0x6c, 0x00, 0x6e, 0x00, 0x00, 0x40, 0x00, 0x00,
-    0x00, 0x00, 0x1a, 0x00, 0x93, 0x00, 0x00, 0x20,
-    0x35, 0x00, 0x27, 0x00, 0x21, 0x00, 0x24, 0x22,
-    0x2a, 0x00, 0x13, 0x6b, 0x6d, 0x00, 0x26, 0x24,
-    0x27, 0x14, 0x16, 0x18, 0x1b, 0x1c, 0x3e, 0x1e,
-    0x3f, 0x1f, 0x39, 0x3d, 0x22, 0x21, 0x41, 0x1e,
-    0x40, 0x25, 0x25, 0x26, 0x28, 0x20, 0x2a, 0x49,
-    0x2c, 0x43, 0x2e, 0x4b, 0x30, 0x4c, 0x32, 0x44,
-    0x42, 0x99, 0x00, 0x00, 0x95, 0x8f, 0x7d, 0x7e,
-    0x83, 0x84, 0x12, 0x80, 0x82, 0x76, 0x77, 0x12,
-    0x7b, 0xa3, 0x7c, 0x78, 0x79, 0x8a, 0x92, 0x98,
-    0xa6, 0xa0, 0x85, 0x00, 0x9a, 0xa1, 0x93, 0x75,
-    0x33, 0x95, 0x00, 0x8e, 0x00, 0x74, 0x99, 0x98,
-    0x97, 0x96, 0x00, 0x00, 0x9e, 0x00, 0x9c, 0x00,
-    0xa1, 0xa0, 0x15, 0x2e, 0x2f, 0x30, 0xb4, 0xb5,
-    0x4c, 0xaa, 0xa9, 0x12, 0x14, 0x1e, 0x21, 0x22,
-    0x22, 0x2a, 0x34, 0x35, 0xa6, 0xa7, 0x36, 0x1f,
-    0x4a, 0x00, 0x00, 0x97, 0x01, 0x5a, 0xda, 0x1d,
-    0x36, 0x05, 0x00, 0xc4, 0xc3, 0xc6, 0xc5, 0xc8,
-    0xc7, 0xca, 0xc9, 0xcc, 0xcb, 0xc4, 0xd5, 0x45,
-    0xd6, 0x42, 0xd7, 0x46, 0xd8, 0xce, 0xd0, 0xd2,
-    0xd4, 0xda, 0xd9, 0xee, 0xf6, 0xfe, 0x0e, 0x07,
-    0x0f, 0x80, 0x9f, 0x00, 0x21, 0x80, 0xa3, 0xed,
-    0x00, 0xc0, 0x40, 0xc6, 0x60, 0xe7, 0xdb, 0xe6,
-    0x99, 0xc0, 0x00, 0x00, 0x06, 0x60, 0xdc, 0x29,
-    0xfd, 0x15, 0x12, 0x06, 0x16, 0xf8, 0xdd, 0x06,
-    0x15, 0x12, 0x84, 0x08, 0xc6, 0x16, 0xff, 0xdf,
-    0x03, 0xc0, 0x40, 0x00, 0x46, 0x60, 0xde, 0xe0,
-    0x6d, 0x37, 0x38, 0x39, 0x15, 0x14, 0x17, 0x16,
-    0x00, 0x1a, 0x19, 0x1c, 0x1b, 0x00, 0x5f, 0xb7,
-    0x65, 0x44, 0x47, 0x00, 0x4f, 0x62, 0x4e, 0x50,
-    0x00, 0x00, 0x48, 0x00, 0x00, 0x00, 0xa3, 0xa4,
-    0xa5, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb6, 0x00,
-    0x00, 0x5a, 0x00, 0x48, 0x00, 0x5b, 0x56, 0x58,
-    0x60, 0x5e, 0x70, 0x69, 0x6f, 0x4b, 0x00, 0x00,
-    0x3b, 0x67, 0xb8, 0x45, 0xa8, 0x8a, 0x8b, 0x8c,
-    0xab, 0xac, 0x58, 0x58, 0xaf, 0x94, 0xb0, 0x6f,
-    0xb2, 0x5a, 0x59, 0x5c, 0x5b, 0x5e, 0x5d, 0x60,
-    0x5f, 0x62, 0x61, 0x64, 0x63, 0x66, 0x65,
-};
-
-static const uint16_t case_conv_ext[58] = {
-    0x0399, 0x0308, 0x0301, 0x03a5, 0x0313, 0x0300, 0x0342, 0x0391,
-    0x0397, 0x03a9, 0x0046, 0x0049, 0x004c, 0x0053, 0x0069, 0x0307,
-    0x02bc, 0x004e, 0x004a, 0x030c, 0x0535, 0x0552, 0x0048, 0x0331,
-    0x0054, 0x0057, 0x030a, 0x0059, 0x0041, 0x02be, 0x1f08, 0x1f80,
-    0x1f28, 0x1f90, 0x1f68, 0x1fa0, 0x1fba, 0x0386, 0x1fb3, 0x1fca,
-    0x0389, 0x1fc3, 0x03a1, 0x1ffa, 0x038f, 0x1ff3, 0x0544, 0x0546,
-    0x053b, 0x054e, 0x053d, 0x03b8, 0x0462, 0xa64a, 0x1e60, 0x03c9,
-    0x006b, 0x00e5,
-};
-
-static const uint8_t unicode_prop_Cased1_table[172] = {
-    0x40, 0xa9, 0x80, 0x8e, 0x80, 0xfc, 0x80, 0xd3,
-    0x80, 0x8c, 0x80, 0x8d, 0x81, 0x8d, 0x02, 0x80,
-    0xe1, 0x80, 0x91, 0x85, 0x9a, 0x01, 0x00, 0x01,
-    0x11, 0x00, 0x01, 0x04, 0x08, 0x01, 0x08, 0x30,
-    0x08, 0x01, 0x15, 0x20, 0x00, 0x39, 0x99, 0x31,
-    0x9d, 0x84, 0x40, 0x94, 0x80, 0xd6, 0x82, 0xa6,
-    0x80, 0x41, 0x62, 0x80, 0xa6, 0x80, 0x57, 0x76,
-    0xf8, 0x02, 0x80, 0x8f, 0x80, 0xb0, 0x40, 0xdb,
-    0x08, 0x80, 0x41, 0xd0, 0x80, 0x8c, 0x80, 0x8f,
-    0x8c, 0xe4, 0x03, 0x01, 0x89, 0x00, 0x14, 0x28,
-    0x10, 0x11, 0x02, 0x01, 0x18, 0x0b, 0x24, 0x4b,
-    0x26, 0x01, 0x01, 0x86, 0xe5, 0x80, 0x60, 0x79,
-    0xb6, 0x81, 0x40, 0x91, 0x81, 0xbd, 0x88, 0x94,
-    0x05, 0x80, 0x98, 0x80, 0xc7, 0x82, 0x43, 0x34,
-    0xa2, 0x06, 0x80, 0x8b, 0x61, 0x28, 0x97, 0xd4,
-    0x80, 0xc6, 0x01, 0x08, 0x09, 0x0b, 0x80, 0x8b,
-    0x00, 0x06, 0x80, 0xc0, 0x03, 0x0f, 0x06, 0x80,
-    0x9b, 0x03, 0x04, 0x00, 0x16, 0x80, 0x41, 0x53,
-    0x81, 0x98, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98,
-    0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98,
-    0x80, 0x9e, 0x80, 0x98, 0x07, 0x59, 0x63, 0x99,
-    0x85, 0x99, 0x85, 0x99,
-};
-
-static const uint8_t unicode_prop_Cased1_index[18] = {
-    0xb9, 0x02, 0xe0, 0xa0, 0x1e, 0x40, 0x9e, 0xa6,
-    0x40, 0xba, 0xd4, 0x01, 0x89, 0xd7, 0x01, 0x8a,
-    0xf1, 0x01,
-};
-
-static const uint8_t unicode_prop_Case_Ignorable_table[678] = {
-    0xa6, 0x05, 0x80, 0x8a, 0x80, 0xa2, 0x00, 0x80,
-    0xc6, 0x03, 0x00, 0x03, 0x01, 0x81, 0x41, 0xf6,
-    0x40, 0xbf, 0x19, 0x18, 0x88, 0x08, 0x80, 0x40,
-    0xfa, 0x86, 0x40, 0xce, 0x80, 0xb6, 0xac, 0x00,
-    0x01, 0x01, 0x00, 0xab, 0x80, 0x8a, 0x85, 0x89,
-    0x8a, 0x00, 0xa2, 0x80, 0x89, 0x94, 0x8f, 0x80,
-    0xe4, 0x38, 0x89, 0x03, 0xa0, 0x00, 0x80, 0x9d,
-    0x9a, 0xda, 0x8a, 0xb9, 0x8a, 0x18, 0x08, 0x97,
-    0x97, 0xaa, 0x82, 0xf6, 0xaf, 0xb6, 0x00, 0x03,
-    0x3b, 0x02, 0x86, 0x89, 0x81, 0x8c, 0x80, 0x8e,
-    0x80, 0xb9, 0x03, 0x1f, 0x80, 0x93, 0x81, 0x99,
-    0x01, 0x81, 0xb8, 0x03, 0x0b, 0x09, 0x12, 0x80,
-    0x9d, 0x0a, 0x80, 0x8a, 0x81, 0xb8, 0x03, 0x20,
-    0x0b, 0x80, 0x93, 0x81, 0x95, 0x28, 0x80, 0xb9,
-    0x01, 0x00, 0x1f, 0x07, 0x80, 0x8a, 0x81, 0x9d,
-    0x80, 0xbc, 0x80, 0x8b, 0x80, 0xb1, 0x02, 0x80,
-    0xb8, 0x14, 0x10, 0x1e, 0x81, 0x8a, 0x81, 0x9c,
-    0x80, 0xb9, 0x01, 0x05, 0x04, 0x81, 0x93, 0x81,
-    0x9b, 0x81, 0xb8, 0x0b, 0x1f, 0x80, 0x93, 0x81,
-    0xe5, 0x06, 0x10, 0x80, 0xd9, 0x01, 0x86, 0x8a,
-    0x88, 0xe1, 0x01, 0x88, 0x88, 0x00, 0x85, 0xc9,
-    0x81, 0x9a, 0x00, 0x00, 0x80, 0xb6, 0x8d, 0x04,
-    0x01, 0x84, 0x8a, 0x80, 0xa3, 0x88, 0x80, 0xe5,
-    0x18, 0x28, 0x09, 0x81, 0x98, 0x0b, 0x82, 0x8f,
-    0x83, 0x8c, 0x01, 0x0d, 0x80, 0x8e, 0x80, 0xdd,
-    0x80, 0x42, 0x5f, 0x82, 0x43, 0xb1, 0x82, 0x9c,
-    0x82, 0x9c, 0x81, 0x9d, 0x81, 0xbf, 0x08, 0x37,
-    0x01, 0x8a, 0x10, 0x20, 0xac, 0x83, 0xb3, 0x80,
-    0xc0, 0x81, 0xa1, 0x80, 0xf5, 0x13, 0x81, 0x88,
-    0x05, 0x82, 0x40, 0xda, 0x09, 0x80, 0xb9, 0x00,
-    0x30, 0x00, 0x01, 0x3d, 0x89, 0x08, 0xa6, 0x07,
-    0x8e, 0xc0, 0x83, 0xaf, 0x00, 0x20, 0x04, 0x80,
-    0xa7, 0x88, 0x8b, 0x81, 0x9f, 0x19, 0x08, 0x82,
-    0xb7, 0x00, 0x0a, 0x00, 0x82, 0xb9, 0x39, 0x81,
-    0xbf, 0x85, 0xd1, 0x10, 0x8c, 0x06, 0x18, 0x28,
-    0x11, 0xb1, 0xbe, 0x8c, 0x80, 0xa1, 0xde, 0x04,
-    0x41, 0xbc, 0x00, 0x82, 0x8a, 0x82, 0x8c, 0x82,
-    0x8c, 0x82, 0x8c, 0x81, 0x8b, 0x27, 0x81, 0x89,
-    0x01, 0x01, 0x84, 0xb0, 0x20, 0x89, 0x00, 0x8c,
-    0x80, 0x8f, 0x8c, 0xb2, 0xa0, 0x4b, 0x8a, 0x81,
-    0xf0, 0x82, 0xfc, 0x80, 0x8e, 0x80, 0xdf, 0x9f,
-    0xae, 0x80, 0x41, 0xd4, 0x80, 0xa3, 0x1a, 0x24,
-    0x80, 0xdc, 0x85, 0xdc, 0x82, 0x60, 0x6f, 0x15,
-    0x80, 0x44, 0xe1, 0x85, 0x41, 0x0d, 0x80, 0xe1,
-    0x18, 0x89, 0x00, 0x9b, 0x83, 0xcf, 0x81, 0x8d,
-    0xa1, 0xcd, 0x80, 0x96, 0x82, 0xec, 0x0f, 0x02,
-    0x03, 0x80, 0x98, 0x81, 0x40, 0x9c, 0x81, 0x99,
-    0x91, 0x8c, 0x80, 0xa5, 0x87, 0x98, 0x8a, 0xad,
-    0x82, 0xaf, 0x01, 0x19, 0x81, 0x90, 0x80, 0x94,
-    0x81, 0xc1, 0x29, 0x09, 0x81, 0x8b, 0x07, 0x80,
-    0xa2, 0x80, 0x8a, 0x80, 0xb2, 0x00, 0x11, 0x0c,
-    0x08, 0x80, 0x9a, 0x80, 0x8d, 0x0c, 0x08, 0x80,
-    0xe3, 0x84, 0x40, 0x84, 0x01, 0x03, 0x80, 0x60,
-    0x4f, 0x2f, 0x80, 0x40, 0x92, 0x8f, 0x42, 0x3d,
-    0x8f, 0x10, 0x8b, 0x8f, 0xa1, 0x01, 0x80, 0x40,
-    0xa8, 0x06, 0x05, 0x80, 0x8a, 0x80, 0xa2, 0x00,
-    0x80, 0xae, 0x80, 0xac, 0x81, 0xc2, 0x80, 0x94,
-    0x82, 0x42, 0x00, 0x80, 0x40, 0xe1, 0x80, 0x40,
-    0x94, 0x84, 0x46, 0x85, 0x10, 0x0c, 0x83, 0xa7,
-    0x13, 0x80, 0x40, 0xa4, 0x81, 0x42, 0x3c, 0x83,
-    0x42, 0x1d, 0x8a, 0x40, 0xaf, 0x80, 0xb5, 0x8e,
-    0xb7, 0x82, 0xb0, 0x19, 0x09, 0x80, 0x8e, 0x80,
-    0xb1, 0x82, 0xa3, 0x20, 0x87, 0xbd, 0x80, 0x8b,
-    0x81, 0xb3, 0x88, 0x89, 0x83, 0xe1, 0x11, 0x00,
-    0x0d, 0x80, 0x40, 0x9f, 0x02, 0x87, 0x94, 0x81,
-    0xb8, 0x0a, 0x80, 0xa4, 0x32, 0x84, 0x40, 0xc2,
-    0x39, 0x10, 0x80, 0x96, 0x80, 0xd3, 0x28, 0x03,
-    0x08, 0x81, 0x40, 0xed, 0x1d, 0x08, 0x81, 0x9a,
-    0x81, 0xd4, 0x39, 0x00, 0x81, 0xe9, 0x00, 0x01,
-    0x28, 0x80, 0xe4, 0x11, 0x18, 0x84, 0x41, 0x02,
-    0x88, 0x01, 0x41, 0x98, 0x19, 0x0b, 0x80, 0x9f,
-    0x89, 0xa7, 0x29, 0x1f, 0x80, 0x88, 0x29, 0x82,
-    0xad, 0x8c, 0x01, 0x41, 0x95, 0x30, 0x28, 0x80,
-    0xd1, 0x95, 0x0e, 0x01, 0x01, 0xf9, 0x2a, 0x00,
-    0x08, 0x30, 0x80, 0xc7, 0x0a, 0x00, 0x80, 0x41,
-    0x5a, 0x81, 0x55, 0x3a, 0x88, 0x60, 0x36, 0xb6,
-    0x84, 0xba, 0x86, 0x88, 0x83, 0x44, 0x0a, 0x80,
-    0xbe, 0x90, 0xbf, 0x08, 0x80, 0x60, 0x4c, 0xb8,
-    0x08, 0x83, 0x54, 0xc2, 0x82, 0x88, 0x8f, 0x0e,
-    0x9d, 0x83, 0x40, 0x93, 0x82, 0x47, 0xba, 0xb6,
-    0x83, 0xb1, 0x38, 0x8d, 0x80, 0x95, 0x20, 0x8e,
-    0x45, 0x4f, 0x30, 0x90, 0x0e, 0x01, 0x04, 0x41,
-    0x04, 0x8d, 0x41, 0xad, 0x83, 0x45, 0xdf, 0x86,
-    0xec, 0x87, 0x4a, 0xae, 0x84, 0x6c, 0x0c, 0x00,
-    0x80, 0x9d, 0xdf, 0xff, 0x40, 0xef,
-};
-
-static const uint8_t unicode_prop_Case_Ignorable_index[66] = {
-    0xc0, 0x05, 0x00, 0x2e, 0x08, 0x20, 0x52, 0x0a,
-    0x00, 0x05, 0x0c, 0x00, 0x4f, 0x0e, 0x20, 0x75,
-    0x10, 0x20, 0x44, 0x18, 0x00, 0x43, 0x1b, 0x00,
-    0x00, 0x1e, 0x00, 0x7e, 0x2c, 0x00, 0x7e, 0xa6,
-    0x40, 0x83, 0xa9, 0x20, 0xf7, 0xaa, 0x00, 0x41,
-    0xff, 0x20, 0x28, 0x0d, 0x01, 0x3f, 0x12, 0x41,
-    0xde, 0x15, 0x21, 0x5c, 0x1a, 0x01, 0xf5, 0x6a,
-    0x21, 0x37, 0xda, 0x01, 0x02, 0x00, 0x2e, 0xf0,
-    0x01, 0x0e,
-};
-
-static const uint8_t unicode_prop_ID_Start_table[1024] = {
-    0xc0, 0x99, 0x85, 0x99, 0xae, 0x80, 0x89, 0x03,
-    0x04, 0x96, 0x80, 0x9e, 0x80, 0x41, 0xc9, 0x83,
-    0x8b, 0x8d, 0x26, 0x00, 0x80, 0x40, 0x80, 0x20,
-    0x09, 0x18, 0x05, 0x00, 0x10, 0x00, 0x93, 0x80,
-    0xd2, 0x80, 0x40, 0x8a, 0x87, 0x40, 0xa5, 0x80,
-    0xa5, 0x08, 0x85, 0xa8, 0xc6, 0x9a, 0x1b, 0xac,
-    0xaa, 0xa2, 0x08, 0xe2, 0x00, 0x8e, 0x0e, 0x81,
-    0x89, 0x11, 0x80, 0x8f, 0x00, 0x9d, 0x9c, 0xd8,
-    0x8a, 0x80, 0x97, 0xa0, 0x88, 0x0b, 0x04, 0x95,
-    0x18, 0x88, 0x02, 0x80, 0x96, 0x98, 0x86, 0x8a,
-    0xb4, 0x94, 0x07, 0xc5, 0xb5, 0x10, 0x91, 0x06,
-    0x89, 0x8e, 0x8f, 0x1f, 0x09, 0x81, 0x95, 0x06,
-    0x00, 0x13, 0x10, 0x8f, 0x80, 0x8c, 0x08, 0x82,
-    0x8d, 0x81, 0x89, 0x07, 0x2b, 0x09, 0x95, 0x06,
-    0x01, 0x01, 0x01, 0x9e, 0x18, 0x80, 0x92, 0x82,
-    0x8f, 0x88, 0x02, 0x80, 0x95, 0x06, 0x01, 0x04,
-    0x10, 0x91, 0x80, 0x8e, 0x81, 0x96, 0x80, 0x8a,
-    0x39, 0x09, 0x95, 0x06, 0x01, 0x04, 0x10, 0x9d,
-    0x08, 0x82, 0x8e, 0x80, 0x90, 0x00, 0x2a, 0x10,
-    0x1a, 0x08, 0x00, 0x0a, 0x0a, 0x12, 0x8b, 0x95,
-    0x80, 0xb3, 0x38, 0x10, 0x96, 0x80, 0x8f, 0x10,
-    0x99, 0x14, 0x81, 0x9d, 0x03, 0x38, 0x10, 0x96,
-    0x80, 0x89, 0x04, 0x10, 0x9f, 0x00, 0x81, 0x8e,
-    0x81, 0x91, 0x38, 0x10, 0xa8, 0x08, 0x8f, 0x04,
-    0x17, 0x82, 0x97, 0x2c, 0x91, 0x82, 0x97, 0x80,
-    0x88, 0x00, 0x0e, 0xb9, 0xaf, 0x01, 0x8b, 0x86,
-    0xb9, 0x08, 0x00, 0x20, 0x97, 0x00, 0x80, 0x89,
-    0x01, 0x88, 0x01, 0x20, 0x80, 0x94, 0x83, 0x9f,
-    0x80, 0xbe, 0x38, 0xa3, 0x9a, 0x84, 0xf2, 0xaa,
-    0x93, 0x80, 0x8f, 0x2b, 0x1a, 0x02, 0x0e, 0x13,
-    0x8c, 0x8b, 0x80, 0x90, 0xa5, 0x00, 0x20, 0x81,
-    0xaa, 0x80, 0x41, 0x4c, 0x03, 0x0e, 0x00, 0x03,
-    0x81, 0xa8, 0x03, 0x81, 0xa0, 0x03, 0x0e, 0x00,
-    0x03, 0x81, 0x8e, 0x80, 0xb8, 0x03, 0x81, 0xc2,
-    0xa4, 0x8f, 0x8f, 0xd5, 0x0d, 0x82, 0x42, 0x6b,
-    0x81, 0x90, 0x80, 0x99, 0x84, 0xca, 0x82, 0x8a,
-    0x86, 0x8c, 0x03, 0x8d, 0x91, 0x8d, 0x91, 0x8d,
-    0x8c, 0x02, 0x8e, 0xb3, 0xa2, 0x03, 0x80, 0xc2,
-    0xd8, 0x86, 0xa8, 0x00, 0x84, 0xc5, 0x89, 0x9e,
-    0xb0, 0x9d, 0x0c, 0x8a, 0xab, 0x83, 0x99, 0xb5,
-    0x96, 0x88, 0xb4, 0xd1, 0x80, 0xdc, 0xae, 0x90,
-    0x86, 0xb6, 0x9d, 0x8c, 0x81, 0x89, 0xab, 0x99,
-    0xa3, 0xa8, 0x82, 0x89, 0xa3, 0x81, 0x88, 0x86,
-    0xaa, 0x0a, 0xa8, 0x18, 0x28, 0x0a, 0x04, 0x40,
-    0xbf, 0xbf, 0x41, 0x15, 0x0d, 0x81, 0xa5, 0x0d,
-    0x0f, 0x00, 0x00, 0x00, 0x80, 0x9e, 0x81, 0xb4,
-    0x06, 0x00, 0x12, 0x06, 0x13, 0x0d, 0x83, 0x8c,
-    0x22, 0x06, 0xf3, 0x80, 0x8c, 0x80, 0x8f, 0x8c,
-    0xe4, 0x03, 0x01, 0x89, 0x00, 0x0d, 0x28, 0x00,
-    0x00, 0x80, 0x8f, 0x0b, 0x24, 0x18, 0x90, 0xa8,
-    0x4a, 0x76, 0xae, 0x80, 0xae, 0x80, 0x40, 0x84,
-    0x2b, 0x11, 0x8b, 0xa5, 0x00, 0x20, 0x81, 0xb7,
-    0x30, 0x8f, 0x96, 0x88, 0x30, 0x30, 0x30, 0x30,
-    0x30, 0x30, 0x30, 0x86, 0x42, 0x25, 0x82, 0x98,
-    0x88, 0x34, 0x0c, 0x83, 0xd5, 0x1c, 0x80, 0xd9,
-    0x03, 0x84, 0xaa, 0x80, 0xdd, 0x90, 0x9a, 0xb4,
-    0x8f, 0x41, 0xff, 0x59, 0xb5, 0xc9, 0x60, 0x51,
-    0xef, 0x8f, 0x44, 0x8c, 0xc2, 0xad, 0x81, 0x41,
-    0x0c, 0x82, 0x8f, 0x89, 0x81, 0x93, 0xae, 0x8f,
-    0x9e, 0x81, 0xcf, 0xa6, 0x88, 0x81, 0xe6, 0x81,
-    0xb4, 0x0c, 0xaf, 0x8a, 0x02, 0x03, 0x80, 0x96,
-    0x9c, 0xb3, 0x8d, 0xb1, 0xbd, 0x2a, 0x00, 0x81,
-    0x8a, 0x9b, 0x89, 0x96, 0x98, 0x9c, 0x86, 0xae,
-    0x9b, 0x80, 0x8f, 0x20, 0x89, 0x89, 0x20, 0xa8,
-    0x96, 0x10, 0x87, 0x93, 0x96, 0x10, 0x82, 0xb1,
-    0x00, 0x11, 0x0c, 0x08, 0x00, 0x97, 0x11, 0x8a,
-    0x32, 0x8b, 0x29, 0x29, 0x85, 0x88, 0x30, 0x30,
-    0xaa, 0x80, 0x8b, 0x87, 0xf2, 0x9c, 0x60, 0x2b,
-    0xa3, 0x8b, 0x96, 0x83, 0xb0, 0x60, 0x21, 0x03,
-    0x41, 0x6d, 0x81, 0xe9, 0xa5, 0x86, 0x8b, 0x24,
-    0x00, 0x89, 0x80, 0x8c, 0x04, 0x00, 0x01, 0x01,
-    0x80, 0xeb, 0xa0, 0x41, 0x6a, 0x91, 0xbf, 0x81,
-    0xb5, 0xa7, 0x8b, 0xf3, 0x20, 0x40, 0x86, 0xa3,
-    0x99, 0x85, 0x99, 0x8a, 0xd8, 0x15, 0x0d, 0x0d,
-    0x0a, 0xa2, 0x8b, 0x80, 0x99, 0x80, 0x92, 0x01,
-    0x80, 0x8e, 0x81, 0x8d, 0xa1, 0xfa, 0xc4, 0xb4,
-    0x41, 0x0a, 0x9c, 0x82, 0xb0, 0xae, 0x9f, 0x8c,
-    0x9d, 0x84, 0xa5, 0x89, 0x9d, 0x81, 0xa3, 0x1f,
-    0x04, 0xa9, 0x40, 0x9d, 0x91, 0xa3, 0x83, 0xa3,
-    0x83, 0xa7, 0x87, 0xb3, 0x40, 0x9b, 0x41, 0x36,
-    0x88, 0x95, 0x89, 0x87, 0x40, 0x97, 0x29, 0x00,
-    0xab, 0x01, 0x10, 0x81, 0x96, 0x89, 0x96, 0x88,
-    0x9e, 0xc0, 0x92, 0x01, 0x89, 0x95, 0x89, 0x99,
-    0xc5, 0xb7, 0x29, 0xbf, 0x80, 0x8e, 0x18, 0x10,
-    0x9c, 0xa9, 0x9c, 0x82, 0x9c, 0xa2, 0x38, 0x9b,
-    0x9a, 0xb5, 0x89, 0x95, 0x89, 0x92, 0x8c, 0x91,
-    0xed, 0xc8, 0xb6, 0xb2, 0x8c, 0xb2, 0x8c, 0xa3,
-    0x41, 0xdb, 0x9c, 0x89, 0x07, 0x95, 0x40, 0x99,
-    0x96, 0x8b, 0xb4, 0xca, 0xac, 0x9f, 0x98, 0x99,
-    0xa3, 0x9c, 0x80, 0x8a, 0xa2, 0x10, 0x8b, 0xaf,
-    0x8d, 0x83, 0x94, 0x00, 0x80, 0xa2, 0x91, 0x80,
-    0x98, 0xd3, 0x30, 0x00, 0x18, 0x8e, 0x80, 0x89,
-    0x86, 0xae, 0xa5, 0x39, 0x09, 0x95, 0x06, 0x01,
-    0x04, 0x10, 0x91, 0x80, 0x8b, 0x84, 0x40, 0x9d,
-    0xb4, 0x91, 0x83, 0x93, 0x80, 0x9f, 0xaf, 0x93,
-    0x08, 0x80, 0x40, 0xb7, 0xae, 0xa8, 0x83, 0xa3,
-    0xaf, 0x93, 0x80, 0xba, 0xaa, 0x8c, 0x80, 0xc6,
-    0x9a, 0x40, 0xe4, 0xab, 0xf3, 0xbf, 0x9e, 0x80,
-    0x40, 0x9f, 0x39, 0xa6, 0x8f, 0x00, 0x80, 0x9b,
-    0x80, 0x89, 0xa7, 0x30, 0x94, 0x80, 0x8a, 0xad,
-    0x92, 0x80, 0xa1, 0xb8, 0x41, 0x06, 0x88, 0x80,
-    0xa4, 0x90, 0x80, 0xb0, 0x9d, 0xef, 0x30, 0x08,
-    0xa5, 0x94, 0x80, 0x98, 0x28, 0x08, 0x9f, 0x8d,
-    0x80, 0x41, 0x46, 0x92, 0x41, 0x0c, 0x43, 0x99,
-    0xe5, 0xee, 0x90, 0x40, 0xc3, 0x4a, 0xbb, 0x44,
-    0x2e, 0x4f, 0xd0, 0x42, 0x46, 0x60, 0x21, 0xb8,
-    0x42, 0x38, 0x86, 0x9e, 0xf0, 0x9d, 0x91, 0xaf,
-    0x8f, 0x83, 0x9e, 0x94, 0x84, 0x92, 0x42, 0xaf,
-    0xbf, 0xff, 0xca, 0x20, 0xc1, 0x8c, 0xbf, 0x08,
-    0x80, 0x9b, 0x57, 0xf7, 0x87, 0x42, 0xf2, 0x60,
-    0x25, 0x0c, 0x41, 0x1e, 0xb0, 0x82, 0x90, 0x1f,
-    0x41, 0x8b, 0x49, 0x03, 0xea, 0x84, 0x8c, 0x82,
-    0x88, 0x86, 0x89, 0x57, 0x65, 0xd4, 0x80, 0xc6,
-    0x01, 0x08, 0x09, 0x0b, 0x80, 0x8b, 0x00, 0x06,
-    0x80, 0xc0, 0x03, 0x0f, 0x06, 0x80, 0x9b, 0x03,
-    0x04, 0x00, 0x16, 0x80, 0x41, 0x53, 0x81, 0x98,
-    0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e,
-    0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e,
-    0x80, 0x98, 0x07, 0x49, 0x33, 0xac, 0x89, 0x86,
-    0x8f, 0x80, 0x41, 0x70, 0xab, 0x45, 0x13, 0x40,
-    0xc4, 0xba, 0xc3, 0x30, 0x44, 0xb3, 0x18, 0x9a,
-    0x01, 0x00, 0x08, 0x80, 0x89, 0x03, 0x00, 0x00,
-    0x28, 0x18, 0x00, 0x00, 0x02, 0x01, 0x00, 0x08,
-    0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x0b, 0x06,
-    0x03, 0x03, 0x00, 0x80, 0x89, 0x80, 0x90, 0x22,
-    0x04, 0x80, 0x90, 0x51, 0x43, 0x60, 0xa6, 0xd6,
-    0xa8, 0x50, 0x34, 0x8a, 0x40, 0xdd, 0x81, 0x56,
-    0x81, 0x8d, 0x5d, 0x30, 0x4c, 0x1e, 0x42, 0x1d,
-};
-
-static const uint8_t unicode_prop_ID_Start_index[96] = {
-    0xf6, 0x03, 0x20, 0xa6, 0x07, 0x00, 0xb1, 0x09,
-    0x00, 0xba, 0x0a, 0x00, 0xd1, 0x0b, 0x20, 0x62,
-    0x0d, 0x40, 0x01, 0x0f, 0x20, 0x5e, 0x12, 0x00,
-    0xf9, 0x16, 0x00, 0x17, 0x1a, 0x20, 0xc0, 0x1d,
-    0x20, 0x9d, 0x20, 0x00, 0x68, 0x2d, 0x00, 0x00,
-    0x32, 0x20, 0xc0, 0xa7, 0x20, 0x29, 0xaa, 0x00,
-    0xa4, 0xd7, 0x20, 0xc8, 0xfd, 0x20, 0x75, 0x01,
-    0x01, 0x37, 0x07, 0x01, 0x36, 0x0a, 0x21, 0xf7,
-    0x0f, 0x21, 0xa9, 0x12, 0x01, 0x30, 0x16, 0x21,
-    0x8a, 0x1a, 0x01, 0x9a, 0x23, 0x01, 0x80, 0x6e,
-    0x21, 0x89, 0xbc, 0x21, 0xc1, 0xd6, 0x01, 0xc5,
-    0xe8, 0x21, 0x73, 0xee, 0x01, 0x1e, 0xfa, 0x02,
-};
-
-static const uint8_t unicode_prop_ID_Continue1_table[607] = {
-    0xaf, 0x89, 0xa4, 0x80, 0xd6, 0x80, 0x42, 0x47,
-    0xef, 0x96, 0x80, 0x40, 0xfa, 0x84, 0x41, 0x08,
-    0xac, 0x00, 0x01, 0x01, 0x00, 0xc7, 0x8a, 0xaf,
-    0x9e, 0x28, 0xe4, 0x31, 0x29, 0x08, 0x19, 0x89,
-    0x96, 0x80, 0x9d, 0x9a, 0xda, 0x8a, 0x8e, 0x89,
-    0xa0, 0x88, 0x88, 0x80, 0x97, 0x18, 0x88, 0x02,
-    0x04, 0xaa, 0x82, 0xf6, 0x8e, 0x80, 0xa0, 0xb5,
-    0x10, 0x91, 0x06, 0x89, 0x09, 0x89, 0x90, 0x82,
-    0xb7, 0x00, 0x31, 0x09, 0x82, 0x88, 0x80, 0x89,
-    0x09, 0x89, 0x8d, 0x01, 0x82, 0xb7, 0x00, 0x23,
-    0x09, 0x12, 0x80, 0x93, 0x8b, 0x10, 0x8a, 0x82,
-    0xb7, 0x00, 0x38, 0x10, 0x82, 0x93, 0x09, 0x89,
-    0x89, 0x28, 0x82, 0xb7, 0x00, 0x31, 0x09, 0x17,
-    0x81, 0x89, 0x09, 0x89, 0x91, 0x80, 0xba, 0x22,
-    0x10, 0x83, 0x88, 0x80, 0x8d, 0x89, 0x8f, 0x84,
-    0xb8, 0x30, 0x10, 0x1e, 0x81, 0x8a, 0x09, 0x89,
-    0x90, 0x82, 0xb7, 0x00, 0x30, 0x10, 0x1e, 0x81,
-    0x8a, 0x09, 0x89, 0x8f, 0x83, 0xb6, 0x08, 0x30,
-    0x10, 0x83, 0x88, 0x80, 0x89, 0x09, 0x89, 0x91,
-    0x81, 0xc5, 0x03, 0x28, 0x00, 0x3d, 0x89, 0x09,
-    0xbc, 0x01, 0x86, 0x8b, 0x38, 0x89, 0xd6, 0x01,
-    0x88, 0x8a, 0x29, 0x89, 0xbd, 0x0d, 0x89, 0x8a,
-    0x00, 0x00, 0x03, 0x81, 0xb0, 0x93, 0x01, 0x84,
-    0x8a, 0x80, 0xa3, 0x88, 0x80, 0xe3, 0x93, 0x80,
-    0x89, 0x8b, 0x1b, 0x10, 0x11, 0x32, 0x83, 0x8c,
-    0x8b, 0x80, 0x8e, 0x42, 0xbe, 0x82, 0x88, 0x88,
-    0x43, 0x9f, 0x82, 0x9c, 0x82, 0x9c, 0x81, 0x9d,
-    0x81, 0xbf, 0x9f, 0x88, 0x01, 0x89, 0xa0, 0x11,
-    0x89, 0x40, 0x8e, 0x80, 0xf5, 0x8b, 0x83, 0x8b,
-    0x89, 0x89, 0xff, 0x8a, 0xbb, 0x84, 0xb8, 0x89,
-    0x80, 0x9c, 0x81, 0x8a, 0x85, 0x89, 0x95, 0x8d,
-    0xc1, 0x84, 0xae, 0x90, 0x8a, 0x89, 0x90, 0x88,
-    0x8b, 0x82, 0x9d, 0x8c, 0x81, 0x89, 0xab, 0x8d,
-    0xaf, 0x93, 0x87, 0x89, 0x85, 0x89, 0xf5, 0x10,
-    0x94, 0x18, 0x28, 0x0a, 0x40, 0xc5, 0xb9, 0x04,
-    0x42, 0x3e, 0x81, 0x92, 0x80, 0xfa, 0x8c, 0x18,
-    0x82, 0x8b, 0x4b, 0xfd, 0x82, 0x40, 0x8c, 0x80,
-    0xdf, 0x9f, 0x42, 0x29, 0x85, 0xe8, 0x81, 0x60,
-    0x75, 0x84, 0x89, 0xc4, 0x03, 0x89, 0x9f, 0x81,
-    0xcf, 0x81, 0x41, 0x0f, 0x02, 0x03, 0x80, 0x96,
-    0x84, 0xd7, 0x81, 0xb1, 0x91, 0x89, 0x89, 0x85,
-    0x91, 0x8c, 0x8a, 0x9b, 0x87, 0x98, 0x8c, 0xab,
-    0x83, 0xae, 0x8d, 0x8e, 0x89, 0x8a, 0x80, 0x89,
-    0x89, 0xae, 0x8d, 0x8b, 0x07, 0x09, 0x89, 0xa0,
-    0x82, 0xb1, 0x00, 0x11, 0x0c, 0x08, 0x80, 0xa8,
-    0x24, 0x81, 0x40, 0xeb, 0x38, 0x09, 0x89, 0x60,
-    0x4f, 0x23, 0x80, 0x42, 0xe0, 0x8f, 0x8f, 0x8f,
-    0x11, 0x97, 0x82, 0x40, 0xbf, 0x89, 0xa4, 0x80,
-    0x42, 0xbc, 0x80, 0x40, 0xe1, 0x80, 0x40, 0x94,
-    0x84, 0x41, 0x24, 0x89, 0x45, 0x56, 0x10, 0x0c,
-    0x83, 0xa7, 0x13, 0x80, 0x40, 0xa4, 0x81, 0x42,
-    0x3c, 0x1f, 0x89, 0x42, 0x0b, 0x8a, 0x40, 0xae,
-    0x82, 0xb4, 0x8e, 0x9e, 0x89, 0x8e, 0x83, 0xac,
-    0x8a, 0xb4, 0x89, 0x2a, 0xa3, 0x8d, 0x80, 0x89,
-    0x21, 0xab, 0x80, 0x8b, 0x82, 0xaf, 0x8d, 0x3b,
-    0x82, 0x89, 0xd1, 0x8b, 0x28, 0x40, 0x9f, 0x8b,
-    0x84, 0x89, 0x2b, 0xb6, 0x08, 0x31, 0x09, 0x82,
-    0x88, 0x80, 0x89, 0x09, 0x32, 0x84, 0x40, 0xbf,
-    0x91, 0x88, 0x89, 0x18, 0xd0, 0x93, 0x8b, 0x89,
-    0x40, 0xd4, 0x31, 0x88, 0x9a, 0x81, 0xd1, 0x90,
-    0x8e, 0x89, 0xd0, 0x8c, 0x87, 0x89, 0xd2, 0x8e,
-    0x83, 0x89, 0x40, 0xf1, 0x8e, 0x40, 0xa4, 0x89,
-    0x40, 0xe6, 0x31, 0x32, 0x80, 0x9b, 0x89, 0xa7,
-    0x30, 0x1f, 0x80, 0x88, 0x8a, 0xad, 0x8f, 0x41,
-    0x94, 0x38, 0x87, 0x8f, 0x89, 0xb7, 0x95, 0x80,
-    0x8d, 0xf9, 0x2a, 0x00, 0x08, 0x30, 0x07, 0x89,
-    0xaf, 0x20, 0x08, 0x27, 0x89, 0x41, 0x48, 0x83,
-    0x60, 0x4b, 0x68, 0x89, 0x40, 0x85, 0x84, 0xba,
-    0x86, 0x98, 0x89, 0x43, 0xf4, 0x00, 0xb6, 0x33,
-    0x60, 0x4d, 0x09, 0x81, 0x54, 0xc5, 0x22, 0x2f,
-    0x39, 0x86, 0x9d, 0x83, 0x40, 0x93, 0x82, 0x45,
-    0x88, 0xb1, 0x41, 0xff, 0xb6, 0x83, 0xb1, 0x38,
-    0x8d, 0x80, 0x95, 0x20, 0x8e, 0x45, 0x4f, 0x30,
-    0x90, 0x0e, 0x01, 0x04, 0x41, 0x04, 0x86, 0x88,
-    0x89, 0x41, 0xa1, 0x8d, 0x45, 0xd5, 0x86, 0xec,
-    0x34, 0x89, 0x6c, 0x17, 0xa5, 0x40, 0xef,
-};
-
-static const uint8_t unicode_prop_ID_Continue1_index[57] = {
-    0xfa, 0x06, 0x00, 0x84, 0x09, 0x00, 0xf0, 0x0a,
-    0x00, 0x70, 0x0c, 0x00, 0xf4, 0x0d, 0x00, 0x4a,
-    0x10, 0x20, 0x1a, 0x18, 0x20, 0x74, 0x1b, 0x00,
-    0xe2, 0x20, 0x00, 0x28, 0xa8, 0x20, 0x7e, 0xaa,
-    0x20, 0x40, 0xff, 0x00, 0x03, 0x10, 0x21, 0xeb,
-    0x12, 0x01, 0x41, 0x16, 0x01, 0x40, 0x1c, 0x61,
-    0x37, 0x6b, 0x21, 0x76, 0xda, 0x01, 0xf0, 0x01,
-    0x0e,
-};
-
-#ifdef CONFIG_ALL_UNICODE
-
-static const uint8_t unicode_cc_table[831] = {
-    0xb2, 0xcf, 0xd4, 0x00, 0xe8, 0x03, 0xdc, 0x00,
-    0xe8, 0x00, 0xd8, 0x04, 0xdc, 0x01, 0xca, 0x03,
-    0xdc, 0x01, 0xca, 0x0a, 0xdc, 0x04, 0x01, 0x03,
-    0xdc, 0xc7, 0x00, 0xf0, 0xc0, 0x02, 0xdc, 0xc2,
-    0x01, 0xdc, 0x80, 0xc2, 0x03, 0xdc, 0xc0, 0x00,
-    0xe8, 0x01, 0xdc, 0xc0, 0x41, 0xe9, 0x00, 0xea,
-    0x41, 0xe9, 0x00, 0xea, 0x00, 0xe9, 0xcc, 0xb0,
-    0xe2, 0xc4, 0xb0, 0xd8, 0x00, 0xdc, 0xc3, 0x00,
-    0xdc, 0xc2, 0x00, 0xde, 0x00, 0xdc, 0xc5, 0x05,
-    0xdc, 0xc1, 0x00, 0xdc, 0xc1, 0x00, 0xde, 0x00,
-    0xe4, 0xc0, 0x49, 0x0a, 0x43, 0x13, 0x80, 0x00,
-    0x17, 0x80, 0x41, 0x18, 0x80, 0xc0, 0x00, 0xdc,
-    0x80, 0x00, 0x12, 0xb0, 0x17, 0xc7, 0x42, 0x1e,
-    0xaf, 0x47, 0x1b, 0xc1, 0x01, 0xdc, 0xc4, 0x00,
-    0xdc, 0xc1, 0x00, 0xdc, 0x8f, 0x00, 0x23, 0xb0,
-    0x34, 0xc6, 0x81, 0xc3, 0x00, 0xdc, 0xc0, 0x81,
-    0xc1, 0x80, 0x00, 0xdc, 0xc1, 0x00, 0xdc, 0xa2,
-    0x00, 0x24, 0x9d, 0xc0, 0x00, 0xdc, 0xc1, 0x00,
-    0xdc, 0xc1, 0x02, 0xdc, 0xc0, 0x01, 0xdc, 0xc0,
-    0x00, 0xdc, 0xc2, 0x00, 0xdc, 0xc0, 0x00, 0xdc,
-    0xc0, 0x00, 0xdc, 0xc0, 0x00, 0xdc, 0xc1, 0xb0,
-    0x6f, 0xc6, 0x00, 0xdc, 0xc0, 0x88, 0x00, 0xdc,
-    0x97, 0xc3, 0x80, 0xc8, 0x80, 0xc2, 0x80, 0xc4,
-    0xaa, 0x02, 0xdc, 0xb0, 0x46, 0x00, 0xdc, 0xcd,
-    0x80, 0x00, 0xdc, 0xc1, 0x00, 0xdc, 0xc1, 0x00,
-    0xdc, 0xc2, 0x02, 0xdc, 0x42, 0x1b, 0xc2, 0x00,
-    0xdc, 0xc1, 0x01, 0xdc, 0xc4, 0xb0, 0x0b, 0x00,
-    0x07, 0x8f, 0x00, 0x09, 0x82, 0xc0, 0x00, 0xdc,
-    0xc1, 0xb0, 0x36, 0x00, 0x07, 0x8f, 0x00, 0x09,
-    0xaf, 0xc0, 0xb0, 0x0c, 0x00, 0x07, 0x8f, 0x00,
-    0x09, 0xb0, 0x3d, 0x00, 0x07, 0x8f, 0x00, 0x09,
-    0xb0, 0x3d, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xb0,
-    0x4e, 0x00, 0x09, 0xb0, 0x4e, 0x00, 0x09, 0x86,
-    0x00, 0x54, 0x00, 0x5b, 0xb0, 0x34, 0x00, 0x07,
-    0x8f, 0x00, 0x09, 0xb0, 0x3c, 0x01, 0x09, 0x8f,
-    0x00, 0x09, 0xb0, 0x4b, 0x00, 0x09, 0xb0, 0x3c,
-    0x01, 0x67, 0x00, 0x09, 0x8c, 0x03, 0x6b, 0xb0,
-    0x3b, 0x01, 0x76, 0x00, 0x09, 0x8c, 0x03, 0x7a,
-    0xb0, 0x1b, 0x01, 0xdc, 0x9a, 0x00, 0xdc, 0x80,
-    0x00, 0xdc, 0x80, 0x00, 0xd8, 0xb0, 0x06, 0x41,
-    0x81, 0x80, 0x00, 0x84, 0x84, 0x03, 0x82, 0x81,
-    0x00, 0x82, 0x80, 0xc1, 0x00, 0x09, 0x80, 0xc1,
-    0xb0, 0x0d, 0x00, 0xdc, 0xb0, 0x3f, 0x00, 0x07,
-    0x80, 0x01, 0x09, 0xb0, 0x21, 0x00, 0xdc, 0xb2,
-    0x9e, 0xc2, 0xb3, 0x83, 0x00, 0x09, 0x9e, 0x00,
-    0x09, 0xb0, 0x6c, 0x00, 0x09, 0x89, 0xc0, 0xb0,
-    0x9a, 0x00, 0xe4, 0xb0, 0x5e, 0x00, 0xde, 0xc0,
-    0x00, 0xdc, 0xb0, 0xaa, 0xc0, 0x00, 0xdc, 0xb0,
-    0x16, 0x00, 0x09, 0x93, 0xc7, 0x81, 0x00, 0xdc,
-    0xaf, 0xc4, 0x05, 0xdc, 0xc1, 0x00, 0xdc, 0xb0,
-    0x45, 0x00, 0x07, 0x8e, 0x00, 0x09, 0xa5, 0xc0,
-    0x00, 0xdc, 0xc6, 0xb0, 0x05, 0x01, 0x09, 0xb0,
-    0x09, 0x00, 0x07, 0x8a, 0x01, 0x09, 0xb0, 0x12,
-    0x00, 0x07, 0xb0, 0x67, 0xc2, 0x41, 0x00, 0x04,
-    0xdc, 0xc1, 0x03, 0xdc, 0xc0, 0x41, 0x00, 0x05,
-    0x01, 0x83, 0x00, 0xdc, 0x85, 0xc0, 0x82, 0xc1,
-    0xb0, 0x95, 0xc1, 0x00, 0xdc, 0xc6, 0x00, 0xdc,
-    0xc1, 0x00, 0xea, 0x00, 0xd6, 0x00, 0xdc, 0x00,
-    0xca, 0xe4, 0x00, 0xe8, 0x01, 0xe4, 0x00, 0xdc,
-    0x80, 0xc0, 0x00, 0xe9, 0x00, 0xdc, 0xc0, 0x00,
-    0xdc, 0xb2, 0x9f, 0xc1, 0x01, 0x01, 0xc3, 0x02,
-    0x01, 0xc1, 0x83, 0xc0, 0x82, 0x01, 0x01, 0xc0,
-    0x00, 0xdc, 0xc0, 0x01, 0x01, 0x03, 0xdc, 0xc0,
-    0xb8, 0x03, 0xcd, 0xc2, 0xb0, 0x5c, 0x00, 0x09,
-    0xb0, 0x2f, 0xdf, 0xb1, 0xf9, 0x00, 0xda, 0x00,
-    0xe4, 0x00, 0xe8, 0x00, 0xde, 0x01, 0xe0, 0xb0,
-    0x38, 0x01, 0x08, 0xb8, 0x6d, 0xa3, 0xc0, 0x83,
-    0xc9, 0x9f, 0xc1, 0xb0, 0x1f, 0xc1, 0xb0, 0xe3,
-    0x00, 0x09, 0xb0, 0x8c, 0x00, 0x09, 0x9a, 0xd1,
-    0xb0, 0x08, 0x02, 0xdc, 0xa4, 0x00, 0x09, 0xb0,
-    0x2e, 0x00, 0x07, 0x8b, 0x00, 0x09, 0xb0, 0xbe,
-    0xc0, 0x80, 0xc1, 0x00, 0xdc, 0x81, 0xc1, 0x84,
-    0xc1, 0x80, 0xc0, 0xb0, 0x03, 0x00, 0x09, 0xb0,
-    0xc5, 0x00, 0x09, 0xb8, 0x46, 0xff, 0x00, 0x1a,
-    0xb2, 0xd0, 0xc6, 0x06, 0xdc, 0xc1, 0xb3, 0x9c,
-    0x00, 0xdc, 0xb0, 0xb1, 0x00, 0xdc, 0xb0, 0x64,
-    0xc4, 0xb6, 0x61, 0x00, 0xdc, 0x80, 0xc0, 0xa7,
-    0xc0, 0x00, 0x01, 0x00, 0xdc, 0x83, 0x00, 0x09,
-    0xb0, 0x74, 0xc0, 0x00, 0xdc, 0xb2, 0x0c, 0xc3,
-    0xb1, 0xed, 0x01, 0xdc, 0xc2, 0x00, 0xdc, 0xc0,
-    0x03, 0xdc, 0xb0, 0xc4, 0x00, 0x09, 0xb0, 0x07,
-    0x00, 0x09, 0xb0, 0x08, 0x00, 0x09, 0x00, 0x07,
-    0xb0, 0x14, 0xc2, 0xaf, 0x01, 0x09, 0xb0, 0x0d,
-    0x00, 0x07, 0xb0, 0x1b, 0x00, 0x09, 0x88, 0x00,
-    0x07, 0xb0, 0x39, 0x00, 0x09, 0x00, 0x07, 0xb0,
-    0x81, 0x00, 0x07, 0x00, 0x09, 0xb0, 0x1f, 0x01,
-    0x07, 0x8f, 0x00, 0x09, 0x97, 0xc6, 0x82, 0xc4,
-    0xb0, 0x9c, 0x00, 0x09, 0x82, 0x00, 0x07, 0x96,
-    0xc0, 0xb0, 0x32, 0x00, 0x09, 0x00, 0x07, 0xb0,
-    0xca, 0x00, 0x09, 0x00, 0x07, 0xb0, 0x4d, 0x00,
-    0x09, 0xb0, 0x45, 0x00, 0x09, 0x00, 0x07, 0xb0,
-    0x42, 0x00, 0x09, 0xb0, 0xdc, 0x00, 0x09, 0x00,
-    0x07, 0xb1, 0x74, 0x00, 0x09, 0xb0, 0x22, 0x00,
-    0x09, 0x91, 0x00, 0x09, 0xb0, 0x20, 0x00, 0x09,
-    0xb1, 0x74, 0x00, 0x09, 0xb0, 0xd1, 0x00, 0x07,
-    0x80, 0x01, 0x09, 0xb0, 0x20, 0x00, 0x09, 0xb8,
-    0x45, 0x27, 0x04, 0x01, 0xb0, 0x0a, 0xc6, 0xb8,
-    0x49, 0x36, 0x00, 0x01, 0xb8, 0x0c, 0x95, 0x01,
-    0xd8, 0x02, 0x01, 0x82, 0x00, 0xe2, 0x04, 0xd8,
-    0x87, 0x07, 0xdc, 0x81, 0xc4, 0x01, 0xdc, 0x9d,
-    0xc3, 0xb0, 0x63, 0xc2, 0xb8, 0x05, 0x8a, 0xc6,
-    0x80, 0xd0, 0x81, 0xc6, 0x80, 0xc1, 0x80, 0xc4,
-    0xb0, 0xd4, 0xc6, 0xb1, 0x84, 0xc3, 0xb5, 0xaf,
-    0x06, 0xdc, 0xb0, 0x3c, 0xc5, 0x00, 0x07,
-};
-
-static const uint8_t unicode_cc_index[78] = {
-    0x4d, 0x03, 0x00, 0x97, 0x05, 0x20, 0xc6, 0x05,
-    0x00, 0xe7, 0x06, 0x00, 0x45, 0x07, 0x00, 0xe2,
-    0x08, 0x00, 0x53, 0x09, 0x00, 0xcd, 0x0b, 0x20,
-    0x38, 0x0e, 0x00, 0x73, 0x0f, 0x20, 0x5d, 0x13,
-    0x20, 0x60, 0x1a, 0x20, 0xe6, 0x1b, 0x20, 0xfa,
-    0x1c, 0x00, 0x00, 0x1e, 0x20, 0x80, 0x2d, 0x00,
-    0x06, 0xa8, 0x00, 0xbe, 0xaa, 0x00, 0x76, 0x03,
-    0x01, 0x4d, 0x0f, 0x01, 0xcb, 0x11, 0x21, 0x5e,
-    0x14, 0x01, 0x3b, 0x18, 0x21, 0xf0, 0x6a, 0x41,
-    0xaa, 0xd1, 0x01, 0x4b, 0xe9, 0x01,
-};
-
-static const uint32_t unicode_decomp_table1[687] = {
-    0x00280081, 0x002a0097, 0x002a8081, 0x002bc097,
-    0x002c8115, 0x002d0097, 0x002d4081, 0x002e0097,
-    0x002e4115, 0x002f0199, 0x00302016, 0x00400842,
-    0x00448a42, 0x004a0442, 0x004c0096, 0x004c8117,
-    0x004d0242, 0x004e4342, 0x004fc12f, 0x0050c342,
-    0x005240bf, 0x00530342, 0x00550942, 0x005a0842,
-    0x005e0096, 0x005e4342, 0x005fc081, 0x00680142,
-    0x006bc142, 0x00710185, 0x0071c317, 0x00734844,
-    0x00778344, 0x00798342, 0x007b02be, 0x007c4197,
-    0x007d0142, 0x007e0444, 0x00800e42, 0x00878142,
-    0x00898744, 0x00ac0483, 0x00b60317, 0x00b80283,
-    0x00d00214, 0x00d10096, 0x00dd0080, 0x00de8097,
-    0x00df8080, 0x00e10097, 0x00e1413e, 0x00e1c080,
-    0x00e204be, 0x00ea83ae, 0x00f282ae, 0x00f401ad,
-    0x00f4c12e, 0x00f54103, 0x00fc0303, 0x00fe4081,
-    0x0100023e, 0x0101c0be, 0x010301be, 0x010640be,
-    0x010e40be, 0x0114023e, 0x0115c0be, 0x011701be,
-    0x011d8144, 0x01304144, 0x01340244, 0x01358144,
-    0x01368344, 0x01388344, 0x013a8644, 0x013e0144,
-    0x0161c085, 0x018882ae, 0x019d422f, 0x01b00184,
-    0x01b4c084, 0x024a4084, 0x024c4084, 0x024d0084,
-    0x0256042e, 0x0272c12e, 0x02770120, 0x0277c084,
-    0x028cc084, 0x028d8084, 0x029641ae, 0x02978084,
-    0x02d20084, 0x02d2c12e, 0x02d70120, 0x02e50084,
-    0x02f281ae, 0x03120084, 0x03300084, 0x0331c122,
-    0x0332812e, 0x035281ae, 0x03768084, 0x037701ae,
-    0x038cc085, 0x03acc085, 0x03b7012f, 0x03c30081,
-    0x03d0c084, 0x03d34084, 0x03d48084, 0x03d5c084,
-    0x03d70084, 0x03da4084, 0x03dcc084, 0x03dd412e,
-    0x03ddc085, 0x03de0084, 0x03de4085, 0x03e04084,
-    0x03e4c084, 0x03e74084, 0x03e88084, 0x03e9c084,
-    0x03eb0084, 0x03ee4084, 0x04098084, 0x043f0081,
-    0x06c18484, 0x06c48084, 0x06cec184, 0x06d00120,
-    0x06d0c084, 0x074b0383, 0x074cc41f, 0x074f1783,
-    0x075e0081, 0x0766d283, 0x07801d44, 0x078e8942,
-    0x07931844, 0x079f0d42, 0x07a58216, 0x07a68085,
-    0x07a6c0be, 0x07a80d44, 0x07aea044, 0x07c00122,
-    0x07c08344, 0x07c20122, 0x07c28344, 0x07c40122,
-    0x07c48244, 0x07c60122, 0x07c68244, 0x07c8113e,
-    0x07d08244, 0x07d20122, 0x07d28244, 0x07d40122,
-    0x07d48344, 0x07d64c3e, 0x07dc4080, 0x07dc80be,
-    0x07dcc080, 0x07dd00be, 0x07dd4080, 0x07dd80be,
-    0x07ddc080, 0x07de00be, 0x07de4080, 0x07de80be,
-    0x07dec080, 0x07df00be, 0x07df4080, 0x07e00820,
-    0x07e40820, 0x07e80820, 0x07ec05be, 0x07eec080,
-    0x07ef00be, 0x07ef4097, 0x07ef8080, 0x07efc117,
-    0x07f0443e, 0x07f24080, 0x07f280be, 0x07f2c080,
-    0x07f303be, 0x07f4c080, 0x07f582ae, 0x07f6c080,
-    0x07f7433e, 0x07f8c080, 0x07f903ae, 0x07fac080,
-    0x07fb013e, 0x07fb8102, 0x07fc83be, 0x07fe4080,
-    0x07fe80be, 0x07fec080, 0x07ff00be, 0x07ff4080,
-    0x07ff8097, 0x0800011e, 0x08008495, 0x08044081,
-    0x0805c097, 0x08090081, 0x08094097, 0x08098099,
-    0x080bc081, 0x080cc085, 0x080d00b1, 0x080d8085,
-    0x080dc0b1, 0x080f0197, 0x0811c197, 0x0815c0b3,
-    0x0817c081, 0x081c0595, 0x081ec081, 0x081f0215,
-    0x0820051f, 0x08228583, 0x08254415, 0x082a0097,
-    0x08400119, 0x08408081, 0x0840c0bf, 0x08414119,
-    0x0841c081, 0x084240bf, 0x0842852d, 0x08454081,
-    0x08458097, 0x08464295, 0x08480097, 0x08484099,
-    0x08488097, 0x08490081, 0x08498080, 0x084a0081,
-    0x084a8102, 0x084b0495, 0x084d421f, 0x084e4081,
-    0x084ec099, 0x084f0283, 0x08514295, 0x08540119,
-    0x0854809b, 0x0854c619, 0x0857c097, 0x08580081,
-    0x08584097, 0x08588099, 0x0858c097, 0x08590081,
-    0x08594097, 0x08598099, 0x0859c09b, 0x085a0097,
-    0x085a4081, 0x085a8097, 0x085ac099, 0x085b0295,
-    0x085c4097, 0x085c8099, 0x085cc097, 0x085d0081,
-    0x085d4097, 0x085d8099, 0x085dc09b, 0x085e0097,
-    0x085e4081, 0x085e8097, 0x085ec099, 0x085f0215,
-    0x08624099, 0x0866813e, 0x086b80be, 0x087341be,
-    0x088100be, 0x088240be, 0x088300be, 0x088901be,
-    0x088b0085, 0x088b40b1, 0x088bc085, 0x088c00b1,
-    0x089040be, 0x089100be, 0x0891c1be, 0x089801be,
-    0x089b42be, 0x089d0144, 0x089e0144, 0x08a00144,
-    0x08a10144, 0x08a20144, 0x08ab023e, 0x08b80244,
-    0x08ba8220, 0x08ca411e, 0x0918049f, 0x091a4523,
-    0x091cc097, 0x091d04a5, 0x091f452b, 0x0921c09b,
-    0x092204a1, 0x09244525, 0x0926c099, 0x09270d25,
-    0x092d8d1f, 0x09340d1f, 0x093a8081, 0x0a8300b3,
-    0x0a9d0099, 0x0a9d4097, 0x0a9d8099, 0x0ab700be,
-    0x0b1f0115, 0x0b5bc081, 0x0ba7c081, 0x0bbcc081,
-    0x0bc004ad, 0x0bc244ad, 0x0bc484ad, 0x0bc6f383,
-    0x0be0852d, 0x0be31d03, 0x0bf1882d, 0x0c000081,
-    0x0c0d8283, 0x0c130b84, 0x0c194284, 0x0c1c0122,
-    0x0c1cc122, 0x0c1d8122, 0x0c1e4122, 0x0c1f0122,
-    0x0c250084, 0x0c26c123, 0x0c278084, 0x0c27c085,
-    0x0c2b0b84, 0x0c314284, 0x0c340122, 0x0c34c122,
-    0x0c358122, 0x0c364122, 0x0c370122, 0x0c3d0084,
-    0x0c3dc220, 0x0c3f8084, 0x0c3fc085, 0x0c4c4a2d,
-    0x0c51451f, 0x0c53ca9f, 0x0c5915ad, 0x0c648703,
-    0x0c800741, 0x0c838089, 0x0c83c129, 0x0c8441a9,
-    0x0c850089, 0x0c854129, 0x0c85c2a9, 0x0c870089,
-    0x0c87408f, 0x0c87808d, 0x0c881241, 0x0c910203,
-    0x0c940099, 0x0c9444a3, 0x0c968323, 0x0c98072d,
-    0x0c9b84af, 0x0c9dc2a1, 0x0c9f00b5, 0x0c9f40b3,
-    0x0c9f8085, 0x0ca01883, 0x0cac4223, 0x0cad4523,
-    0x0cafc097, 0x0cb004a1, 0x0cb241a5, 0x0cb30097,
-    0x0cb34099, 0x0cb38097, 0x0cb3c099, 0x0cb417ad,
-    0x0cbfc085, 0x0cc001b3, 0x0cc0c0b1, 0x0cc100b3,
-    0x0cc14131, 0x0cc1c0b5, 0x0cc200b3, 0x0cc241b1,
-    0x0cc30133, 0x0cc38131, 0x0cc40085, 0x0cc440b1,
-    0x0cc48133, 0x0cc50085, 0x0cc540b5, 0x0cc580b7,
-    0x0cc5c0b5, 0x0cc600b1, 0x0cc64135, 0x0cc6c0b3,
-    0x0cc701b1, 0x0cc7c0b3, 0x0cc800b5, 0x0cc840b3,
-    0x0cc881b1, 0x0cc9422f, 0x0cca4131, 0x0ccac0b5,
-    0x0ccb00b1, 0x0ccb40b3, 0x0ccb80b5, 0x0ccbc0b1,
-    0x0ccc012f, 0x0ccc80b5, 0x0cccc0b3, 0x0ccd00b5,
-    0x0ccd40b1, 0x0ccd80b5, 0x0ccdc085, 0x0cce02b1,
-    0x0ccf40b3, 0x0ccf80b1, 0x0ccfc085, 0x0cd001b1,
-    0x0cd0c0b3, 0x0cd101b1, 0x0cd1c0b5, 0x0cd200b3,
-    0x0cd24085, 0x0cd280b5, 0x0cd2c085, 0x0cd30133,
-    0x0cd381b1, 0x0cd440b3, 0x0cd48085, 0x0cd4c0b1,
-    0x0cd500b3, 0x0cd54085, 0x0cd580b5, 0x0cd5c0b1,
-    0x0cd60521, 0x0cd88525, 0x0cdb02a5, 0x0cdc4099,
-    0x0cdc8117, 0x0cdd0099, 0x0cdd4197, 0x0cde0127,
-    0x0cde8285, 0x0cdfc089, 0x0ce0043f, 0x0ce20099,
-    0x0ce2409b, 0x0ce283bf, 0x0ce44219, 0x0ce54205,
-    0x0ce6433f, 0x0ce7c131, 0x0ce84085, 0x0ce881b1,
-    0x0ce94085, 0x0ce98107, 0x0cea0089, 0x0cea4097,
-    0x0cea8219, 0x0ceb809d, 0x0cebc08d, 0x0cec083f,
-    0x0cf00105, 0x0cf0809b, 0x0cf0c197, 0x0cf1809b,
-    0x0cf1c099, 0x0cf20517, 0x0cf48099, 0x0cf4c117,
-    0x0cf54119, 0x0cf5c097, 0x0cf6009b, 0x0cf64099,
-    0x0cf68217, 0x0cf78119, 0x0cf804a1, 0x0cfa4525,
-    0x0cfcc525, 0x0cff4125, 0x0cffc099, 0x29a70103,
-    0x29dc0081, 0x29fe0103, 0x2ad70203, 0x3e401482,
-    0x3e4a7f82, 0x3e6a3f82, 0x3e8aa102, 0x3e9b0110,
-    0x3e9c2f82, 0x3eb3c590, 0x3ec00197, 0x3ec0c119,
-    0x3ec1413f, 0x3ec4c2af, 0x3ec74184, 0x3ec804ad,
-    0x3eca4081, 0x3eca8304, 0x3ecc03a0, 0x3ece02a0,
-    0x3ecf8084, 0x3ed00120, 0x3ed0c120, 0x3ed184ae,
-    0x3ed3c085, 0x3ed4312d, 0x3ef4cbad, 0x3efa892f,
-    0x3eff022d, 0x3f002f2f, 0x3f1782a5, 0x3f18c0b1,
-    0x3f1907af, 0x3f1cffaf, 0x3f3c81a5, 0x3f3d64af,
-    0x3f542031, 0x3f649b31, 0x3f7c0131, 0x3f7c83b3,
-    0x3f7e40b1, 0x3f7e80bd, 0x3f7ec0bb, 0x3f7f00b3,
-    0x3f840503, 0x3f8c01ad, 0x3f8cc315, 0x3f8e462d,
-    0x3f91cc03, 0x3f97c695, 0x3f9c01af, 0x3f9d0085,
-    0x3f9d852f, 0x3fa03aad, 0x3fbd442f, 0x3fc06f1f,
-    0x3fd7c11f, 0x3fd85fad, 0x3fe80081, 0x3fe84f1f,
-    0x3ff0831f, 0x3ff2831f, 0x3ff4831f, 0x3ff6819f,
-    0x3ff80783, 0x44268192, 0x442ac092, 0x444b8112,
-    0x44d2c112, 0x452ec212, 0x456e8112, 0x74578392,
-    0x746ec312, 0x75000d1f, 0x75068d1f, 0x750d0d1f,
-    0x7513839f, 0x7515891f, 0x751a0d1f, 0x75208d1f,
-    0x75271015, 0x752f439f, 0x7531459f, 0x75340d1f,
-    0x753a8d1f, 0x75410395, 0x7543441f, 0x7545839f,
-    0x75478d1f, 0x754e0795, 0x7552839f, 0x75548d1f,
-    0x755b0d1f, 0x75618d1f, 0x75680d1f, 0x756e8d1f,
-    0x75750d1f, 0x757b8d1f, 0x75820d1f, 0x75888d1f,
-    0x758f0d1f, 0x75958d1f, 0x759c0d1f, 0x75a28d1f,
-    0x75a90103, 0x75aa089f, 0x75ae4081, 0x75ae839f,
-    0x75b04081, 0x75b08c9f, 0x75b6c081, 0x75b7032d,
-    0x75b8889f, 0x75bcc081, 0x75bd039f, 0x75bec081,
-    0x75bf0c9f, 0x75c54081, 0x75c5832d, 0x75c7089f,
-    0x75cb4081, 0x75cb839f, 0x75cd4081, 0x75cd8c9f,
-    0x75d3c081, 0x75d4032d, 0x75d5889f, 0x75d9c081,
-    0x75da039f, 0x75dbc081, 0x75dc0c9f, 0x75e24081,
-    0x75e2832d, 0x75e4089f, 0x75e84081, 0x75e8839f,
-    0x75ea4081, 0x75ea8c9f, 0x75f0c081, 0x75f1042d,
-    0x75f3851f, 0x75f6051f, 0x75f8851f, 0x75fb051f,
-    0x75fd851f, 0x7b80022d, 0x7b814dad, 0x7b884203,
-    0x7b89c081, 0x7b8a452d, 0x7b8d0403, 0x7b908081,
-    0x7b91dc03, 0x7ba0052d, 0x7ba2c8ad, 0x7ba84483,
-    0x7baac8ad, 0x7c400097, 0x7c404521, 0x7c440d25,
-    0x7c4a8087, 0x7c4ac115, 0x7c4b4117, 0x7c4c0d1f,
-    0x7c528217, 0x7c538099, 0x7c53c097, 0x7c5a8197,
-    0x7c640097, 0x7c80012f, 0x7c808081, 0x7c841603,
-    0x7c9004c1, 0x7c940103, 0xbe0001ac, 0xbe00d110,
-    0xbe0947ac, 0xbe0d3910, 0xbe29872c, 0xbe2d022c,
-    0xbe2e3790, 0xbe49ff90, 0xbe69bc10,
-};
-
-static const uint16_t unicode_decomp_table2[687] = {
-    0x0020, 0x0000, 0x0061, 0x0002, 0x0004, 0x0006, 0x03bc, 0x0008,
-    0x000a, 0x000c, 0x0015, 0x0095, 0x00a5, 0x00b9, 0x00c1, 0x00c3,
-    0x00c7, 0x00cb, 0x00d1, 0x00d7, 0x00dd, 0x00e0, 0x00e6, 0x00f8,
-    0x0108, 0x010a, 0x0073, 0x0110, 0x0112, 0x0114, 0x0120, 0x012c,
-    0x0144, 0x014d, 0x0153, 0x0162, 0x0168, 0x016a, 0x0176, 0x0192,
-    0x0194, 0x01a9, 0x01bb, 0x01c7, 0x01d1, 0x01d5, 0x02b9, 0x01d7,
-    0x003b, 0x01d9, 0x01db, 0x00b7, 0x01e1, 0x01fc, 0x020c, 0x0218,
-    0x021d, 0x0223, 0x0227, 0x03a3, 0x0233, 0x023f, 0x0242, 0x024b,
-    0x024e, 0x0251, 0x025d, 0x0260, 0x0269, 0x026c, 0x026f, 0x0275,
-    0x0278, 0x0281, 0x028a, 0x029c, 0x029f, 0x02a3, 0x02af, 0x02b9,
-    0x02c5, 0x02c9, 0x02cd, 0x02d1, 0x02d5, 0x02e7, 0x02ed, 0x02f1,
-    0x02f5, 0x02f9, 0x02fd, 0x0305, 0x0309, 0x030d, 0x0313, 0x0317,
-    0x031b, 0x0323, 0x0327, 0x032b, 0x032f, 0x0335, 0x033d, 0x0341,
-    0x0349, 0x034d, 0x0351, 0x0f0b, 0x0357, 0x035b, 0x035f, 0x0363,
-    0x0367, 0x036b, 0x036f, 0x0373, 0x0379, 0x037d, 0x0381, 0x0385,
-    0x0389, 0x038d, 0x0391, 0x0395, 0x0399, 0x039d, 0x03a1, 0x10dc,
-    0x03a5, 0x03c9, 0x03cd, 0x03d9, 0x03dd, 0x03e1, 0x03ef, 0x03f1,
-    0x043d, 0x044f, 0x0499, 0x04f0, 0x0502, 0x054a, 0x0564, 0x056c,
-    0x0570, 0x0573, 0x059a, 0x05fa, 0x05fe, 0x0607, 0x060b, 0x0614,
-    0x0618, 0x061e, 0x0622, 0x0628, 0x068e, 0x0694, 0x0698, 0x069e,
-    0x06a2, 0x06ab, 0x03ac, 0x06f3, 0x03ad, 0x06f6, 0x03ae, 0x06f9,
-    0x03af, 0x06fc, 0x03cc, 0x06ff, 0x03cd, 0x0702, 0x03ce, 0x0705,
-    0x0709, 0x070d, 0x0711, 0x0386, 0x0732, 0x0735, 0x03b9, 0x0737,
-    0x073b, 0x0388, 0x0753, 0x0389, 0x0756, 0x0390, 0x076b, 0x038a,
-    0x0777, 0x03b0, 0x0789, 0x038e, 0x0799, 0x079f, 0x07a3, 0x038c,
-    0x07b8, 0x038f, 0x07bb, 0x00b4, 0x07be, 0x07c0, 0x07c2, 0x2010,
-    0x07cb, 0x002e, 0x07cd, 0x07cf, 0x0020, 0x07d2, 0x07d6, 0x07db,
-    0x07df, 0x07e4, 0x07ea, 0x07f0, 0x0020, 0x07f6, 0x2212, 0x0801,
-    0x0805, 0x0807, 0x081d, 0x0825, 0x0827, 0x0043, 0x082d, 0x0830,
-    0x0190, 0x0836, 0x0839, 0x004e, 0x0845, 0x0847, 0x084c, 0x084e,
-    0x0851, 0x005a, 0x03a9, 0x005a, 0x0853, 0x0857, 0x0860, 0x0069,
-    0x0862, 0x0865, 0x086f, 0x0874, 0x087a, 0x087e, 0x08a2, 0x0049,
-    0x08a4, 0x08a6, 0x08a9, 0x0056, 0x08ab, 0x08ad, 0x08b0, 0x08b4,
-    0x0058, 0x08b6, 0x08b8, 0x08bb, 0x08c0, 0x08c2, 0x08c5, 0x0076,
-    0x08c7, 0x08c9, 0x08cc, 0x08d0, 0x0078, 0x08d2, 0x08d4, 0x08d7,
-    0x08db, 0x08de, 0x08e4, 0x08e7, 0x08f0, 0x08f3, 0x08f6, 0x08f9,
-    0x0902, 0x0906, 0x090b, 0x090f, 0x0914, 0x0917, 0x091a, 0x0923,
-    0x092c, 0x093b, 0x093e, 0x0941, 0x0944, 0x0947, 0x094a, 0x0956,
-    0x095c, 0x0960, 0x0962, 0x0964, 0x0968, 0x096a, 0x0970, 0x0978,
-    0x097c, 0x0980, 0x0986, 0x0989, 0x098f, 0x0991, 0x0030, 0x0993,
-    0x0999, 0x099c, 0x099e, 0x09a1, 0x09a4, 0x2d61, 0x6bcd, 0x9f9f,
-    0x09a6, 0x09b1, 0x09bc, 0x09c7, 0x0a95, 0x0aa1, 0x0b15, 0x0020,
-    0x0b27, 0x0b31, 0x0b8d, 0x0ba1, 0x0ba5, 0x0ba9, 0x0bad, 0x0bb1,
-    0x0bb5, 0x0bb9, 0x0bbd, 0x0bc1, 0x0bc5, 0x0c21, 0x0c35, 0x0c39,
-    0x0c3d, 0x0c41, 0x0c45, 0x0c49, 0x0c4d, 0x0c51, 0x0c55, 0x0c59,
-    0x0c6f, 0x0c71, 0x0c73, 0x0ca0, 0x0cbc, 0x0cdc, 0x0ce4, 0x0cec,
-    0x0cf4, 0x0cfc, 0x0d04, 0x0d0c, 0x0d14, 0x0d22, 0x0d2e, 0x0d7a,
-    0x0d82, 0x0d85, 0x0d89, 0x0d8d, 0x0d9d, 0x0db1, 0x0db5, 0x0dbc,
-    0x0dc2, 0x0dc6, 0x0e28, 0x0e2c, 0x0e30, 0x0e32, 0x0e36, 0x0e3c,
-    0x0e3e, 0x0e41, 0x0e43, 0x0e46, 0x0e77, 0x0e7b, 0x0e89, 0x0e8e,
-    0x0e94, 0x0e9c, 0x0ea3, 0x0ea9, 0x0eb4, 0x0ebe, 0x0ec6, 0x0eca,
-    0x0ecf, 0x0ed9, 0x0edd, 0x0ee4, 0x0eec, 0x0ef3, 0x0ef8, 0x0f04,
-    0x0f0a, 0x0f15, 0x0f1b, 0x0f22, 0x0f28, 0x0f33, 0x0f3d, 0x0f45,
-    0x0f4c, 0x0f51, 0x0f57, 0x0f5e, 0x0f63, 0x0f69, 0x0f70, 0x0f76,
-    0x0f7d, 0x0f82, 0x0f89, 0x0f8d, 0x0f9e, 0x0fa4, 0x0fa9, 0x0fad,
-    0x0fb8, 0x0fbe, 0x0fc9, 0x0fd0, 0x0fd6, 0x0fda, 0x0fe1, 0x0fe5,
-    0x0fef, 0x0ffa, 0x1000, 0x1004, 0x1009, 0x100f, 0x1013, 0x101a,
-    0x101f, 0x1023, 0x1029, 0x102f, 0x1032, 0x1036, 0x1039, 0x103f,
-    0x1045, 0x1059, 0x1061, 0x1079, 0x107c, 0x1080, 0x1095, 0x10a1,
-    0x10b1, 0x10c3, 0x10cb, 0x10cf, 0x10da, 0x10de, 0x10ea, 0x10f2,
-    0x10f4, 0x1100, 0x1105, 0x1111, 0x1141, 0x1149, 0x114d, 0x1153,
-    0x1157, 0x115a, 0x116e, 0x1171, 0x1175, 0x117b, 0x117d, 0x1181,
-    0x1184, 0x118c, 0x1192, 0x1196, 0x119c, 0x11a2, 0x11a8, 0x11ab,
-    0xa76f, 0x11af, 0x11b3, 0x11bb, 0x120d, 0x130b, 0x1409, 0x148d,
-    0x1492, 0x1550, 0x1569, 0x156f, 0x1575, 0x157b, 0x1587, 0x1593,
-    0x002b, 0x159e, 0x15b6, 0x15ba, 0x15be, 0x15c2, 0x15c6, 0x15ca,
-    0x15de, 0x15e2, 0x1646, 0x165f, 0x1685, 0x168b, 0x1749, 0x174f,
-    0x1754, 0x1774, 0x1874, 0x187a, 0x190e, 0x19d0, 0x1a74, 0x1a7c,
-    0x1a9a, 0x1a9f, 0x1ab3, 0x1abd, 0x1ac3, 0x1ad7, 0x1adc, 0x1ae2,
-    0x1af0, 0x1b20, 0x1b2d, 0x1b35, 0x1b39, 0x1b4f, 0x1bc6, 0x1bd8,
-    0x1bda, 0x1bdc, 0x3164, 0x1c1d, 0x1c1f, 0x1c21, 0x1c23, 0x1c25,
-    0x1c27, 0x1c45, 0x1c53, 0x1c58, 0x1c61, 0x1c6a, 0x1c7c, 0x1c85,
-    0x1ca5, 0x1cc0, 0x1cc2, 0x1cc4, 0x1cc6, 0x1cc8, 0x1cca, 0x1ccc,
-    0x1cce, 0x1cee, 0x1cf0, 0x1cf2, 0x1cf4, 0x1cf6, 0x1cfd, 0x1cff,
-    0x1d01, 0x1d03, 0x1d12, 0x1d14, 0x1d16, 0x1d18, 0x1d1a, 0x1d1c,
-    0x1d1e, 0x1d20, 0x1d22, 0x1d24, 0x1d26, 0x1d28, 0x1d2a, 0x1d2c,
-    0x1d2e, 0x1d32, 0x03f4, 0x1d34, 0x2207, 0x1d36, 0x2202, 0x1d38,
-    0x1d40, 0x03f4, 0x1d42, 0x2207, 0x1d44, 0x2202, 0x1d46, 0x1d4e,
-    0x03f4, 0x1d50, 0x2207, 0x1d52, 0x2202, 0x1d54, 0x1d5c, 0x03f4,
-    0x1d5e, 0x2207, 0x1d60, 0x2202, 0x1d62, 0x1d6a, 0x03f4, 0x1d6c,
-    0x2207, 0x1d6e, 0x2202, 0x1d70, 0x1d7a, 0x1d7c, 0x1d7e, 0x1d80,
-    0x1d82, 0x1d84, 0x1d8a, 0x1da7, 0x062d, 0x1daf, 0x1dbb, 0x062c,
-    0x1dcb, 0x1e3b, 0x1e47, 0x1e5a, 0x1e6c, 0x1e7f, 0x1e81, 0x1e85,
-    0x1e8b, 0x1e91, 0x1e93, 0x1e97, 0x1e99, 0x1ea1, 0x1ea4, 0x1ea6,
-    0x1eac, 0x1eae, 0x30b5, 0x1eb4, 0x1f0c, 0x1f22, 0x1f26, 0x1f2b,
-    0x1f78, 0x1f89, 0x208a, 0x209a, 0x20a0, 0x219a, 0x22b8,
-};
-
-static const uint8_t unicode_decomp_data[9158] = {
-    0x20, 0x88, 0x20, 0x84, 0x32, 0x33, 0x20, 0x81,
-    0x20, 0xa7, 0x31, 0x6f, 0x31, 0xd0, 0x34, 0x31,
-    0xd0, 0x32, 0x33, 0xd0, 0x34, 0x41, 0x80, 0x41,
-    0x81, 0x41, 0x82, 0x41, 0x83, 0x41, 0x88, 0x41,
-    0x8a, 0x00, 0x00, 0x43, 0xa7, 0x45, 0x80, 0x45,
-    0x81, 0x45, 0x82, 0x45, 0x88, 0x49, 0x80, 0x49,
-    0x81, 0x49, 0x82, 0x49, 0x88, 0x00, 0x00, 0x4e,
-    0x83, 0x4f, 0x80, 0x4f, 0x81, 0x4f, 0x82, 0x4f,
-    0x83, 0x4f, 0x88, 0x00, 0x00, 0x00, 0x00, 0x55,
-    0x80, 0x55, 0x81, 0x55, 0x82, 0x55, 0x88, 0x59,
-    0x81, 0x00, 0x00, 0x00, 0x00, 0x61, 0x80, 0x61,
-    0x81, 0x61, 0x82, 0x61, 0x83, 0x61, 0x88, 0x61,
-    0x8a, 0x00, 0x00, 0x63, 0xa7, 0x65, 0x80, 0x65,
-    0x81, 0x65, 0x82, 0x65, 0x88, 0x69, 0x80, 0x69,
-    0x81, 0x69, 0x82, 0x69, 0x88, 0x00, 0x00, 0x6e,
-    0x83, 0x6f, 0x80, 0x6f, 0x81, 0x6f, 0x82, 0x6f,
-    0x83, 0x6f, 0x88, 0x00, 0x00, 0x00, 0x00, 0x75,
-    0x80, 0x75, 0x81, 0x75, 0x82, 0x75, 0x88, 0x79,
-    0x81, 0x00, 0x00, 0x79, 0x88, 0x41, 0x84, 0x41,
-    0x86, 0x41, 0xa8, 0x43, 0x81, 0x43, 0x82, 0x43,
-    0x87, 0x43, 0x8c, 0x44, 0x8c, 0x45, 0x84, 0x45,
-    0x86, 0x45, 0x87, 0x45, 0xa8, 0x45, 0x8c, 0x47,
-    0x82, 0x47, 0x86, 0x47, 0x87, 0x47, 0xa7, 0x48,
-    0x82, 0x49, 0x83, 0x49, 0x84, 0x49, 0x86, 0x49,
-    0xa8, 0x49, 0x87, 0x49, 0x4a, 0x69, 0x6a, 0x4a,
-    0x82, 0x4b, 0xa7, 0x4c, 0x81, 0x4c, 0xa7, 0x4c,
-    0x8c, 0x4c, 0x00, 0x00, 0x6b, 0x20, 0x6b, 0x4e,
-    0x81, 0x4e, 0xa7, 0x4e, 0x8c, 0xbc, 0x02, 0x6e,
-    0x4f, 0x84, 0x4f, 0x86, 0x4f, 0x8b, 0x52, 0x81,
-    0x52, 0xa7, 0x52, 0x8c, 0x53, 0x81, 0x53, 0x82,
-    0x53, 0xa7, 0x53, 0x8c, 0x54, 0xa7, 0x54, 0x8c,
-    0x55, 0x83, 0x55, 0x84, 0x55, 0x86, 0x55, 0x8a,
-    0x55, 0x8b, 0x55, 0xa8, 0x57, 0x82, 0x59, 0x82,
-    0x59, 0x88, 0x5a, 0x81, 0x5a, 0x87, 0x5a, 0x8c,
-    0x4f, 0x9b, 0x55, 0x9b, 0x44, 0x00, 0x7d, 0x01,
-    0x44, 0x00, 0x7e, 0x01, 0x64, 0x00, 0x7e, 0x01,
-    0x4c, 0x4a, 0x4c, 0x6a, 0x6c, 0x6a, 0x4e, 0x4a,
-    0x4e, 0x6a, 0x6e, 0x6a, 0x41, 0x00, 0x8c, 0x49,
-    0x00, 0x8c, 0x4f, 0x00, 0x8c, 0x55, 0x00, 0x8c,
-    0xdc, 0x00, 0x84, 0xdc, 0x00, 0x81, 0xdc, 0x00,
-    0x8c, 0xdc, 0x00, 0x80, 0xc4, 0x00, 0x84, 0x26,
-    0x02, 0x84, 0xc6, 0x00, 0x84, 0x47, 0x8c, 0x4b,
-    0x8c, 0x4f, 0xa8, 0xea, 0x01, 0x84, 0xeb, 0x01,
-    0x84, 0xb7, 0x01, 0x8c, 0x92, 0x02, 0x8c, 0x6a,
-    0x00, 0x8c, 0x44, 0x5a, 0x44, 0x7a, 0x64, 0x7a,
-    0x47, 0x81, 0x4e, 0x00, 0x80, 0xc5, 0x00, 0x81,
-    0xc6, 0x00, 0x81, 0xd8, 0x00, 0x81, 0x41, 0x8f,
-    0x41, 0x91, 0x45, 0x8f, 0x45, 0x91, 0x49, 0x8f,
-    0x49, 0x91, 0x4f, 0x8f, 0x4f, 0x91, 0x52, 0x8f,
-    0x52, 0x91, 0x55, 0x8f, 0x55, 0x91, 0x53, 0xa6,
-    0x54, 0xa6, 0x48, 0x8c, 0x41, 0x00, 0x87, 0x45,
-    0x00, 0xa7, 0xd6, 0x00, 0x84, 0xd5, 0x00, 0x84,
-    0x4f, 0x00, 0x87, 0x2e, 0x02, 0x84, 0x59, 0x00,
-    0x84, 0x68, 0x00, 0x66, 0x02, 0x6a, 0x00, 0x72,
-    0x00, 0x79, 0x02, 0x7b, 0x02, 0x81, 0x02, 0x77,
-    0x00, 0x79, 0x00, 0x20, 0x86, 0x20, 0x87, 0x20,
-    0x8a, 0x20, 0xa8, 0x20, 0x83, 0x20, 0x8b, 0x63,
-    0x02, 0x6c, 0x00, 0x73, 0x00, 0x78, 0x00, 0x95,
-    0x02, 0x80, 0x81, 0x00, 0x93, 0x88, 0x81, 0x20,
-    0xc5, 0x20, 0x81, 0xa8, 0x00, 0x81, 0x91, 0x03,
-    0x81, 0x95, 0x03, 0x81, 0x97, 0x03, 0x81, 0x99,
-    0x03, 0x81, 0x00, 0x00, 0x00, 0x9f, 0x03, 0x81,
-    0x00, 0x00, 0x00, 0xa5, 0x03, 0x81, 0xa9, 0x03,
-    0x81, 0xca, 0x03, 0x81, 0x01, 0x03, 0x98, 0x07,
-    0xa4, 0x07, 0xb0, 0x00, 0xb4, 0x00, 0xb6, 0x00,
-    0xb8, 0x00, 0xca, 0x00, 0x01, 0x03, 0xb8, 0x07,
-    0xc4, 0x07, 0xbe, 0x00, 0xc4, 0x00, 0xc8, 0x00,
-    0xa5, 0x03, 0x0d, 0x13, 0x00, 0x01, 0x03, 0xd1,
-    0x00, 0xd1, 0x07, 0xc6, 0x03, 0xc0, 0x03, 0xba,
-    0x03, 0xc1, 0x03, 0xc2, 0x03, 0x00, 0x00, 0x98,
-    0x03, 0xb5, 0x03, 0x15, 0x04, 0x80, 0x15, 0x04,
-    0x88, 0x00, 0x00, 0x00, 0x13, 0x04, 0x81, 0x06,
-    0x04, 0x88, 0x1a, 0x04, 0x81, 0x18, 0x04, 0x80,
-    0x23, 0x04, 0x86, 0x18, 0x04, 0x86, 0x38, 0x04,
-    0x86, 0x35, 0x04, 0x80, 0x35, 0x04, 0x88, 0x00,
-    0x00, 0x00, 0x33, 0x04, 0x81, 0x56, 0x04, 0x88,
-    0x3a, 0x04, 0x81, 0x38, 0x04, 0x80, 0x43, 0x04,
-    0x86, 0x74, 0x04, 0x8f, 0x16, 0x04, 0x86, 0x10,
-    0x04, 0x86, 0x10, 0x04, 0x88, 0x15, 0x04, 0x86,
-    0xd8, 0x04, 0x88, 0x16, 0x04, 0x88, 0x17, 0x04,
-    0x88, 0x18, 0x04, 0x84, 0x18, 0x04, 0x88, 0x1e,
-    0x04, 0x88, 0xe8, 0x04, 0x88, 0x2d, 0x04, 0x88,
-    0x23, 0x04, 0x84, 0x23, 0x04, 0x88, 0x23, 0x04,
-    0x8b, 0x27, 0x04, 0x88, 0x2b, 0x04, 0x88, 0x65,
-    0x05, 0x82, 0x05, 0x27, 0x06, 0x00, 0x2c, 0x00,
-    0x2d, 0x21, 0x2d, 0x00, 0x2e, 0x23, 0x2d, 0x27,
-    0x06, 0x00, 0x4d, 0x21, 0x4d, 0xa0, 0x4d, 0x23,
-    0x4d, 0xd5, 0x06, 0x54, 0x06, 0x00, 0x00, 0x00,
-    0x00, 0xc1, 0x06, 0x54, 0x06, 0xd2, 0x06, 0x54,
-    0x06, 0x28, 0x09, 0x3c, 0x09, 0x30, 0x09, 0x3c,
-    0x09, 0x33, 0x09, 0x3c, 0x09, 0x15, 0x09, 0x00,
-    0x27, 0x01, 0x27, 0x02, 0x27, 0x07, 0x27, 0x0c,
-    0x27, 0x0d, 0x27, 0x16, 0x27, 0x1a, 0x27, 0xbe,
-    0x09, 0x09, 0x00, 0x09, 0x19, 0xa1, 0x09, 0xbc,
-    0x09, 0xaf, 0x09, 0xbc, 0x09, 0x32, 0x0a, 0x3c,
-    0x0a, 0x38, 0x0a, 0x3c, 0x0a, 0x16, 0x0a, 0x00,
-    0x26, 0x01, 0x26, 0x06, 0x26, 0x2b, 0x0a, 0x3c,
-    0x0a, 0x47, 0x0b, 0x56, 0x0b, 0x3e, 0x0b, 0x09,
-    0x00, 0x09, 0x19, 0x21, 0x0b, 0x3c, 0x0b, 0x92,
-    0x0b, 0xd7, 0x0b, 0xbe, 0x0b, 0x08, 0x00, 0x09,
-    0x00, 0x08, 0x19, 0x46, 0x0c, 0x56, 0x0c, 0xbf,
-    0x0c, 0xd5, 0x0c, 0xc6, 0x0c, 0xd5, 0x0c, 0xc2,
-    0x0c, 0x04, 0x00, 0x08, 0x13, 0x3e, 0x0d, 0x08,
-    0x00, 0x09, 0x00, 0x08, 0x19, 0xd9, 0x0d, 0xca,
-    0x0d, 0xca, 0x0d, 0x0f, 0x05, 0x12, 0x00, 0x0f,
-    0x15, 0x4d, 0x0e, 0x32, 0x0e, 0xcd, 0x0e, 0xb2,
-    0x0e, 0x99, 0x0e, 0x12, 0x00, 0x12, 0x08, 0x42,
-    0x0f, 0xb7, 0x0f, 0x4c, 0x0f, 0xb7, 0x0f, 0x51,
-    0x0f, 0xb7, 0x0f, 0x56, 0x0f, 0xb7, 0x0f, 0x5b,
-    0x0f, 0xb7, 0x0f, 0x40, 0x0f, 0xb5, 0x0f, 0x71,
-    0x0f, 0x72, 0x0f, 0x71, 0x0f, 0x00, 0x03, 0x41,
-    0x0f, 0xb2, 0x0f, 0x81, 0x0f, 0xb3, 0x0f, 0x80,
-    0x0f, 0xb3, 0x0f, 0x81, 0x0f, 0x71, 0x0f, 0x80,
-    0x0f, 0x92, 0x0f, 0xb7, 0x0f, 0x9c, 0x0f, 0xb7,
-    0x0f, 0xa1, 0x0f, 0xb7, 0x0f, 0xa6, 0x0f, 0xb7,
-    0x0f, 0xab, 0x0f, 0xb7, 0x0f, 0x90, 0x0f, 0xb5,
-    0x0f, 0x25, 0x10, 0x2e, 0x10, 0x05, 0x1b, 0x35,
-    0x1b, 0x00, 0x00, 0x00, 0x00, 0x07, 0x1b, 0x35,
-    0x1b, 0x00, 0x00, 0x00, 0x00, 0x09, 0x1b, 0x35,
-    0x1b, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x1b, 0x35,
-    0x1b, 0x00, 0x00, 0x00, 0x00, 0x0d, 0x1b, 0x35,
-    0x1b, 0x11, 0x1b, 0x35, 0x1b, 0x3a, 0x1b, 0x35,
-    0x1b, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x1b, 0x35,
-    0x1b, 0x3e, 0x1b, 0x35, 0x1b, 0x42, 0x1b, 0x35,
-    0x1b, 0x41, 0x00, 0xc6, 0x00, 0x42, 0x00, 0x00,
-    0x00, 0x44, 0x00, 0x45, 0x00, 0x8e, 0x01, 0x47,
-    0x00, 0x4f, 0x00, 0x22, 0x02, 0x50, 0x00, 0x52,
-    0x00, 0x54, 0x00, 0x55, 0x00, 0x57, 0x00, 0x61,
-    0x00, 0x50, 0x02, 0x51, 0x02, 0x02, 0x1d, 0x62,
-    0x00, 0x64, 0x00, 0x65, 0x00, 0x59, 0x02, 0x5b,
-    0x02, 0x5c, 0x02, 0x67, 0x00, 0x00, 0x00, 0x6b,
-    0x00, 0x6d, 0x00, 0x4b, 0x01, 0x6f, 0x00, 0x54,
-    0x02, 0x16, 0x1d, 0x17, 0x1d, 0x70, 0x00, 0x74,
-    0x00, 0x75, 0x00, 0x1d, 0x1d, 0x6f, 0x02, 0x76,
-    0x00, 0x25, 0x1d, 0xb2, 0x03, 0xb3, 0x03, 0xb4,
-    0x03, 0xc6, 0x03, 0xc7, 0x03, 0x69, 0x00, 0x72,
-    0x00, 0x75, 0x00, 0x76, 0x00, 0xb2, 0x03, 0xb3,
-    0x03, 0xc1, 0x03, 0xc6, 0x03, 0xc7, 0x03, 0x52,
-    0x02, 0x63, 0x00, 0x55, 0x02, 0xf0, 0x00, 0x5c,
-    0x02, 0x66, 0x00, 0x5f, 0x02, 0x61, 0x02, 0x65,
-    0x02, 0x68, 0x02, 0x69, 0x02, 0x6a, 0x02, 0x7b,
-    0x1d, 0x9d, 0x02, 0x6d, 0x02, 0x85, 0x1d, 0x9f,
-    0x02, 0x71, 0x02, 0x70, 0x02, 0x72, 0x02, 0x73,
-    0x02, 0x74, 0x02, 0x75, 0x02, 0x78, 0x02, 0x82,
-    0x02, 0x83, 0x02, 0xab, 0x01, 0x89, 0x02, 0x8a,
-    0x02, 0x1c, 0x1d, 0x8b, 0x02, 0x8c, 0x02, 0x7a,
-    0x00, 0x90, 0x02, 0x91, 0x02, 0x92, 0x02, 0xb8,
-    0x03, 0x41, 0x00, 0xa5, 0x42, 0x00, 0x87, 0x42,
-    0x00, 0xa3, 0x42, 0x00, 0xb1, 0xc7, 0x00, 0x81,
-    0x44, 0x00, 0x87, 0x44, 0x00, 0xa3, 0x44, 0x00,
-    0xb1, 0x44, 0x00, 0xa7, 0x44, 0x00, 0xad, 0x12,
-    0x01, 0x80, 0x12, 0x01, 0x81, 0x45, 0x00, 0xad,
-    0x45, 0x00, 0xb0, 0x28, 0x02, 0x86, 0x46, 0x00,
-    0x87, 0x47, 0x00, 0x84, 0x48, 0x00, 0x87, 0x48,
-    0x00, 0xa3, 0x48, 0x00, 0x88, 0x48, 0x00, 0xa7,
-    0x48, 0x00, 0xae, 0x49, 0x00, 0xb0, 0xcf, 0x00,
-    0x81, 0x4b, 0x00, 0x81, 0x4b, 0x00, 0xa3, 0x4b,
-    0x00, 0xb1, 0x4c, 0x00, 0xa3, 0x36, 0x1e, 0x84,
-    0x4c, 0xb1, 0x4c, 0xad, 0x4d, 0x81, 0x4d, 0x87,
-    0x4d, 0xa3, 0x4e, 0x87, 0x4e, 0xa3, 0x4e, 0xb1,
-    0x4e, 0xad, 0xd5, 0x00, 0x81, 0xd5, 0x00, 0x88,
-    0x4c, 0x01, 0x80, 0x4c, 0x01, 0x81, 0x50, 0x00,
-    0x81, 0x50, 0x00, 0x87, 0x52, 0x00, 0x87, 0x52,
-    0x00, 0xa3, 0x5a, 0x1e, 0x84, 0x52, 0x00, 0xb1,
-    0x53, 0x00, 0x87, 0x53, 0x00, 0xa3, 0x5a, 0x01,
-    0x87, 0x60, 0x01, 0x87, 0x62, 0x1e, 0x87, 0x54,
-    0x00, 0x87, 0x54, 0x00, 0xa3, 0x54, 0x00, 0xb1,
-    0x54, 0x00, 0xad, 0x55, 0x00, 0xa4, 0x55, 0x00,
-    0xb0, 0x55, 0x00, 0xad, 0x68, 0x01, 0x81, 0x6a,
-    0x01, 0x88, 0x56, 0x83, 0x56, 0xa3, 0x57, 0x80,
-    0x57, 0x81, 0x57, 0x88, 0x57, 0x87, 0x57, 0xa3,
-    0x58, 0x87, 0x58, 0x88, 0x59, 0x87, 0x5a, 0x82,
-    0x5a, 0xa3, 0x5a, 0xb1, 0x68, 0xb1, 0x74, 0x88,
-    0x77, 0x8a, 0x79, 0x8a, 0x61, 0x00, 0xbe, 0x02,
-    0x7f, 0x01, 0x87, 0x41, 0x00, 0xa3, 0x41, 0x00,
-    0x89, 0xc2, 0x00, 0x81, 0xc2, 0x00, 0x80, 0xc2,
-    0x00, 0x89, 0xc2, 0x00, 0x83, 0xa0, 0x1e, 0x82,
-    0x02, 0x01, 0x81, 0x02, 0x01, 0x80, 0x02, 0x01,
-    0x89, 0x02, 0x01, 0x83, 0xa0, 0x1e, 0x86, 0x45,
-    0x00, 0xa3, 0x45, 0x00, 0x89, 0x45, 0x00, 0x83,
-    0xca, 0x00, 0x81, 0xca, 0x00, 0x80, 0xca, 0x00,
-    0x89, 0xca, 0x00, 0x83, 0xb8, 0x1e, 0x82, 0x49,
-    0x00, 0x89, 0x49, 0x00, 0xa3, 0x4f, 0x00, 0xa3,
-    0x4f, 0x00, 0x89, 0xd4, 0x00, 0x81, 0xd4, 0x00,
-    0x80, 0xd4, 0x00, 0x89, 0xd4, 0x00, 0x83, 0xcc,
-    0x1e, 0x82, 0xa0, 0x01, 0x81, 0xa0, 0x01, 0x80,
-    0xa0, 0x01, 0x89, 0xa0, 0x01, 0x83, 0xa0, 0x01,
-    0xa3, 0x55, 0x00, 0xa3, 0x55, 0x00, 0x89, 0xaf,
-    0x01, 0x81, 0xaf, 0x01, 0x80, 0xaf, 0x01, 0x89,
-    0xaf, 0x01, 0x83, 0xaf, 0x01, 0xa3, 0x59, 0x00,
-    0x80, 0x59, 0x00, 0xa3, 0x59, 0x00, 0x89, 0x59,
-    0x00, 0x83, 0xb1, 0x03, 0x13, 0x03, 0x00, 0x1f,
-    0x80, 0x00, 0x1f, 0x81, 0x00, 0x1f, 0xc2, 0x91,
-    0x03, 0x13, 0x03, 0x08, 0x1f, 0x80, 0x08, 0x1f,
-    0x81, 0x08, 0x1f, 0xc2, 0xb5, 0x03, 0x13, 0x03,
-    0x10, 0x1f, 0x80, 0x10, 0x1f, 0x81, 0x95, 0x03,
-    0x13, 0x03, 0x18, 0x1f, 0x80, 0x18, 0x1f, 0x81,
-    0xb7, 0x03, 0x93, 0xb7, 0x03, 0x94, 0x20, 0x1f,
-    0x80, 0x21, 0x1f, 0x80, 0x20, 0x1f, 0x81, 0x21,
-    0x1f, 0x81, 0x20, 0x1f, 0xc2, 0x21, 0x1f, 0xc2,
-    0x97, 0x03, 0x93, 0x97, 0x03, 0x94, 0x28, 0x1f,
-    0x80, 0x29, 0x1f, 0x80, 0x28, 0x1f, 0x81, 0x29,
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-    0x8e, 0x68, 0x1f, 0x68, 0x14, 0x69, 0x9d, 0x3b,
-    0x42, 0x69, 0xa3, 0x69, 0xea, 0x69, 0xa8, 0x6a,
-    0xa3, 0x36, 0xdb, 0x6a, 0x18, 0x3c, 0x21, 0x6b,
-    0xa7, 0x38, 0x54, 0x6b, 0x4e, 0x3c, 0x72, 0x6b,
-    0x9f, 0x6b, 0xba, 0x6b, 0xbb, 0x6b, 0x8d, 0x3a,
-    0x0b, 0x1d, 0xfa, 0x3a, 0x4e, 0x6c, 0xbc, 0x3c,
-    0xbf, 0x6c, 0xcd, 0x6c, 0x67, 0x6c, 0x16, 0x6d,
-    0x3e, 0x6d, 0x77, 0x6d, 0x41, 0x6d, 0x69, 0x6d,
-    0x78, 0x6d, 0x85, 0x6d, 0x1e, 0x3d, 0x34, 0x6d,
-    0x2f, 0x6e, 0x6e, 0x6e, 0x33, 0x3d, 0xcb, 0x6e,
-    0xc7, 0x6e, 0xd1, 0x3e, 0xf9, 0x6d, 0x6e, 0x6f,
-    0x5e, 0x3f, 0x8e, 0x3f, 0xc6, 0x6f, 0x39, 0x70,
-    0x1e, 0x70, 0x1b, 0x70, 0x96, 0x3d, 0x4a, 0x70,
-    0x7d, 0x70, 0x77, 0x70, 0xad, 0x70, 0x25, 0x05,
-    0x45, 0x71, 0x63, 0x42, 0x9c, 0x71, 0xab, 0x43,
-    0x28, 0x72, 0x35, 0x72, 0x50, 0x72, 0x08, 0x46,
-    0x80, 0x72, 0x95, 0x72, 0x35, 0x47, 0x02, 0x20,
-    0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x08,
-    0x80, 0x00, 0x00, 0x02, 0x02, 0x80, 0x8a, 0x00,
-    0x00, 0x20, 0x00, 0x08, 0x0a, 0x00, 0x80, 0x88,
-    0x80, 0x20, 0x14, 0x48, 0x7a, 0x73, 0x8b, 0x73,
-    0xac, 0x3e, 0xa5, 0x73, 0xb8, 0x3e, 0xb8, 0x3e,
-    0x47, 0x74, 0x5c, 0x74, 0x71, 0x74, 0x85, 0x74,
-    0xca, 0x74, 0x1b, 0x3f, 0x24, 0x75, 0x36, 0x4c,
-    0x3e, 0x75, 0x92, 0x4c, 0x70, 0x75, 0x9f, 0x21,
-    0x10, 0x76, 0xa1, 0x4f, 0xb8, 0x4f, 0x44, 0x50,
-    0xfc, 0x3f, 0x08, 0x40, 0xf4, 0x76, 0xf3, 0x50,
-    0xf2, 0x50, 0x19, 0x51, 0x33, 0x51, 0x1e, 0x77,
-    0x1f, 0x77, 0x1f, 0x77, 0x4a, 0x77, 0x39, 0x40,
-    0x8b, 0x77, 0x46, 0x40, 0x96, 0x40, 0x1d, 0x54,
-    0x4e, 0x78, 0x8c, 0x78, 0xcc, 0x78, 0xe3, 0x40,
-    0x26, 0x56, 0x56, 0x79, 0x9a, 0x56, 0xc5, 0x56,
-    0x8f, 0x79, 0xeb, 0x79, 0x2f, 0x41, 0x40, 0x7a,
-    0x4a, 0x7a, 0x4f, 0x7a, 0x7c, 0x59, 0xa7, 0x5a,
-    0xa7, 0x5a, 0xee, 0x7a, 0x02, 0x42, 0xab, 0x5b,
-    0xc6, 0x7b, 0xc9, 0x7b, 0x27, 0x42, 0x80, 0x5c,
-    0xd2, 0x7c, 0xa0, 0x42, 0xe8, 0x7c, 0xe3, 0x7c,
-    0x00, 0x7d, 0x86, 0x5f, 0x63, 0x7d, 0x01, 0x43,
-    0xc7, 0x7d, 0x02, 0x7e, 0x45, 0x7e, 0x34, 0x43,
-    0x28, 0x62, 0x47, 0x62, 0x59, 0x43, 0xd9, 0x62,
-    0x7a, 0x7f, 0x3e, 0x63, 0x95, 0x7f, 0xfa, 0x7f,
-    0x05, 0x80, 0xda, 0x64, 0x23, 0x65, 0x60, 0x80,
-    0xa8, 0x65, 0x70, 0x80, 0x5f, 0x33, 0xd5, 0x43,
-    0xb2, 0x80, 0x03, 0x81, 0x0b, 0x44, 0x3e, 0x81,
-    0xb5, 0x5a, 0xa7, 0x67, 0xb5, 0x67, 0x93, 0x33,
-    0x9c, 0x33, 0x01, 0x82, 0x04, 0x82, 0x9e, 0x8f,
-    0x6b, 0x44, 0x91, 0x82, 0x8b, 0x82, 0x9d, 0x82,
-    0xb3, 0x52, 0xb1, 0x82, 0xb3, 0x82, 0xbd, 0x82,
-    0xe6, 0x82, 0x3c, 0x6b, 0xe5, 0x82, 0x1d, 0x83,
-    0x63, 0x83, 0xad, 0x83, 0x23, 0x83, 0xbd, 0x83,
-    0xe7, 0x83, 0x57, 0x84, 0x53, 0x83, 0xca, 0x83,
-    0xcc, 0x83, 0xdc, 0x83, 0x36, 0x6c, 0x6b, 0x6d,
-    0x02, 0x00, 0x00, 0x20, 0x22, 0x2a, 0xa0, 0x0a,
-    0x00, 0x20, 0x80, 0x28, 0x00, 0xa8, 0x20, 0x20,
-    0x00, 0x02, 0x80, 0x22, 0x02, 0x8a, 0x08, 0x00,
-    0xaa, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x28,
-    0xd5, 0x6c, 0x2b, 0x45, 0xf1, 0x84, 0xf3, 0x84,
-    0x16, 0x85, 0xca, 0x73, 0x64, 0x85, 0x2c, 0x6f,
-    0x5d, 0x45, 0x61, 0x45, 0xb1, 0x6f, 0xd2, 0x70,
-    0x6b, 0x45, 0x50, 0x86, 0x5c, 0x86, 0x67, 0x86,
-    0x69, 0x86, 0xa9, 0x86, 0x88, 0x86, 0x0e, 0x87,
-    0xe2, 0x86, 0x79, 0x87, 0x28, 0x87, 0x6b, 0x87,
-    0x86, 0x87, 0xd7, 0x45, 0xe1, 0x87, 0x01, 0x88,
-    0xf9, 0x45, 0x60, 0x88, 0x63, 0x88, 0x67, 0x76,
-    0xd7, 0x88, 0xde, 0x88, 0x35, 0x46, 0xfa, 0x88,
-    0xbb, 0x34, 0xae, 0x78, 0x66, 0x79, 0xbe, 0x46,
-    0xc7, 0x46, 0xa0, 0x8a, 0xed, 0x8a, 0x8a, 0x8b,
-    0x55, 0x8c, 0xa8, 0x7c, 0xab, 0x8c, 0xc1, 0x8c,
-    0x1b, 0x8d, 0x77, 0x8d, 0x2f, 0x7f, 0x04, 0x08,
-    0xcb, 0x8d, 0xbc, 0x8d, 0xf0, 0x8d, 0xde, 0x08,
-    0xd4, 0x8e, 0x38, 0x8f, 0xd2, 0x85, 0xed, 0x85,
-    0x94, 0x90, 0xf1, 0x90, 0x11, 0x91, 0x2e, 0x87,
-    0x1b, 0x91, 0x38, 0x92, 0xd7, 0x92, 0xd8, 0x92,
-    0x7c, 0x92, 0xf9, 0x93, 0x15, 0x94, 0xfa, 0x8b,
-    0x8b, 0x95, 0x95, 0x49, 0xb7, 0x95, 0x77, 0x8d,
-    0xe6, 0x49, 0xc3, 0x96, 0xb2, 0x5d, 0x23, 0x97,
-    0x45, 0x91, 0x1a, 0x92, 0x6e, 0x4a, 0x76, 0x4a,
-    0xe0, 0x97, 0x0a, 0x94, 0xb2, 0x4a, 0x96, 0x94,
-    0x0b, 0x98, 0x0b, 0x98, 0x29, 0x98, 0xb6, 0x95,
-    0xe2, 0x98, 0x33, 0x4b, 0x29, 0x99, 0xa7, 0x99,
-    0xc2, 0x99, 0xfe, 0x99, 0xce, 0x4b, 0x30, 0x9b,
-    0x12, 0x9b, 0x40, 0x9c, 0xfd, 0x9c, 0xce, 0x4c,
-    0xed, 0x4c, 0x67, 0x9d, 0xce, 0xa0, 0xf8, 0x4c,
-    0x05, 0xa1, 0x0e, 0xa2, 0x91, 0xa2, 0xbb, 0x9e,
-    0x56, 0x4d, 0xf9, 0x9e, 0xfe, 0x9e, 0x05, 0x9f,
-    0x0f, 0x9f, 0x16, 0x9f, 0x3b, 0x9f, 0x00, 0xa6,
-    0x02, 0x88, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x80,
-    0x00, 0x28, 0x00, 0x08, 0xa0, 0x80, 0xa0, 0x80,
-    0x00, 0x80, 0x80, 0x00, 0x0a, 0x88, 0x80, 0x00,
-    0x80, 0x00, 0x20, 0x2a, 0x00, 0x80,
-};
-
-static const uint16_t unicode_comp_table[944] = {
-    0x4a01, 0x49c0, 0x4a02, 0x0280, 0x0281, 0x0282, 0x0283, 0x02c0,
-    0x02c2, 0x0a00, 0x0284, 0x2442, 0x0285, 0x07c0, 0x0980, 0x0982,
-    0x2440, 0x2280, 0x02c4, 0x2282, 0x2284, 0x2286, 0x02c6, 0x02c8,
-    0x02ca, 0x02cc, 0x0287, 0x228a, 0x02ce, 0x228c, 0x2290, 0x2292,
-    0x228e, 0x0288, 0x0289, 0x028a, 0x2482, 0x0300, 0x0302, 0x0304,
-    0x028b, 0x2480, 0x0308, 0x0984, 0x0986, 0x2458, 0x0a02, 0x0306,
-    0x2298, 0x229a, 0x229e, 0x0900, 0x030a, 0x22a0, 0x030c, 0x030e,
-    0x0840, 0x0310, 0x0312, 0x22a2, 0x22a6, 0x09c0, 0x22a4, 0x22a8,
-    0x22aa, 0x028c, 0x028d, 0x028e, 0x0340, 0x0342, 0x0344, 0x0380,
-    0x028f, 0x248e, 0x07c2, 0x0988, 0x098a, 0x2490, 0x0346, 0x22ac,
-    0x0400, 0x22b0, 0x0842, 0x22b2, 0x0402, 0x22b4, 0x0440, 0x0444,
-    0x22b6, 0x0442, 0x22c2, 0x22c0, 0x22c4, 0x22c6, 0x22c8, 0x0940,
-    0x04c0, 0x0291, 0x22ca, 0x04c4, 0x22cc, 0x04c2, 0x22d0, 0x22ce,
-    0x0292, 0x0293, 0x0294, 0x0295, 0x0540, 0x0542, 0x0a08, 0x0296,
-    0x2494, 0x0544, 0x07c4, 0x098c, 0x098e, 0x06c0, 0x2492, 0x0844,
-    0x2308, 0x230a, 0x0580, 0x230c, 0x0584, 0x0990, 0x0992, 0x230e,
-    0x0582, 0x2312, 0x0586, 0x0588, 0x2314, 0x058c, 0x2316, 0x0998,
-    0x058a, 0x231e, 0x0590, 0x2320, 0x099a, 0x058e, 0x2324, 0x2322,
-    0x0299, 0x029a, 0x029b, 0x05c0, 0x05c2, 0x05c4, 0x029c, 0x24ac,
-    0x05c6, 0x05c8, 0x07c6, 0x0994, 0x0996, 0x0700, 0x24aa, 0x2326,
-    0x05ca, 0x232a, 0x2328, 0x2340, 0x2342, 0x2344, 0x2346, 0x05cc,
-    0x234a, 0x2348, 0x234c, 0x234e, 0x2350, 0x24b8, 0x029d, 0x05ce,
-    0x24be, 0x0a0c, 0x2352, 0x0600, 0x24bc, 0x24ba, 0x0640, 0x2354,
-    0x0642, 0x0644, 0x2356, 0x2358, 0x02a0, 0x02a1, 0x02a2, 0x02a3,
-    0x02c1, 0x02c3, 0x0a01, 0x02a4, 0x2443, 0x02a5, 0x07c1, 0x0981,
-    0x0983, 0x2441, 0x2281, 0x02c5, 0x2283, 0x2285, 0x2287, 0x02c7,
-    0x02c9, 0x02cb, 0x02cd, 0x02a7, 0x228b, 0x02cf, 0x228d, 0x2291,
-    0x2293, 0x228f, 0x02a8, 0x02a9, 0x02aa, 0x2483, 0x0301, 0x0303,
-    0x0305, 0x02ab, 0x2481, 0x0309, 0x0985, 0x0987, 0x2459, 0x0a03,
-    0x0307, 0x2299, 0x229b, 0x229f, 0x0901, 0x030b, 0x22a1, 0x030d,
-    0x030f, 0x0841, 0x0311, 0x0313, 0x22a3, 0x22a7, 0x09c1, 0x22a5,
-    0x22a9, 0x22ab, 0x2380, 0x02ac, 0x02ad, 0x02ae, 0x0341, 0x0343,
-    0x0345, 0x02af, 0x248f, 0x07c3, 0x0989, 0x098b, 0x2491, 0x0347,
-    0x22ad, 0x0401, 0x0884, 0x22b1, 0x0843, 0x22b3, 0x0403, 0x22b5,
-    0x0441, 0x0445, 0x22b7, 0x0443, 0x22c3, 0x22c1, 0x22c5, 0x22c7,
-    0x22c9, 0x0941, 0x04c1, 0x02b1, 0x22cb, 0x04c5, 0x22cd, 0x04c3,
-    0x22d1, 0x22cf, 0x02b2, 0x02b3, 0x02b4, 0x02b5, 0x0541, 0x0543,
-    0x0a09, 0x02b6, 0x2495, 0x0545, 0x07c5, 0x098d, 0x098f, 0x06c1,
-    0x2493, 0x0845, 0x2309, 0x230b, 0x0581, 0x230d, 0x0585, 0x0991,
-    0x0993, 0x230f, 0x0583, 0x2313, 0x0587, 0x0589, 0x2315, 0x058d,
-    0x2317, 0x0999, 0x058b, 0x231f, 0x2381, 0x0591, 0x2321, 0x099b,
-    0x058f, 0x2325, 0x2323, 0x02b9, 0x02ba, 0x02bb, 0x05c1, 0x05c3,
-    0x05c5, 0x02bc, 0x24ad, 0x05c7, 0x05c9, 0x07c7, 0x0995, 0x0997,
-    0x0701, 0x24ab, 0x2327, 0x05cb, 0x232b, 0x2329, 0x2341, 0x2343,
-    0x2345, 0x2347, 0x05cd, 0x234b, 0x2349, 0x2382, 0x234d, 0x234f,
-    0x2351, 0x24b9, 0x02bd, 0x05cf, 0x24bf, 0x0a0d, 0x2353, 0x02bf,
-    0x24bd, 0x2383, 0x24bb, 0x0641, 0x2355, 0x0643, 0x0645, 0x2357,
-    0x2359, 0x3101, 0x0c80, 0x2e00, 0x2446, 0x2444, 0x244a, 0x2448,
-    0x0800, 0x0942, 0x0944, 0x0804, 0x2288, 0x2486, 0x2484, 0x248a,
-    0x2488, 0x22ae, 0x2498, 0x2496, 0x249c, 0x249a, 0x2300, 0x0a06,
-    0x2302, 0x0a04, 0x0946, 0x07ce, 0x07ca, 0x07c8, 0x07cc, 0x2447,
-    0x2445, 0x244b, 0x2449, 0x0801, 0x0943, 0x0945, 0x0805, 0x2289,
-    0x2487, 0x2485, 0x248b, 0x2489, 0x22af, 0x2499, 0x2497, 0x249d,
-    0x249b, 0x2301, 0x0a07, 0x2303, 0x0a05, 0x0947, 0x07cf, 0x07cb,
-    0x07c9, 0x07cd, 0x2450, 0x244e, 0x2454, 0x2452, 0x2451, 0x244f,
-    0x2455, 0x2453, 0x2294, 0x2296, 0x2295, 0x2297, 0x2304, 0x2306,
-    0x2305, 0x2307, 0x2318, 0x2319, 0x231a, 0x231b, 0x232c, 0x232d,
-    0x232e, 0x232f, 0x2400, 0x24a2, 0x24a0, 0x24a6, 0x24a4, 0x24a8,
-    0x24a3, 0x24a1, 0x24a7, 0x24a5, 0x24a9, 0x24b0, 0x24ae, 0x24b4,
-    0x24b2, 0x24b6, 0x24b1, 0x24af, 0x24b5, 0x24b3, 0x24b7, 0x0882,
-    0x0880, 0x0881, 0x0802, 0x0803, 0x229c, 0x229d, 0x0a0a, 0x0a0b,
-    0x0883, 0x0b40, 0x2c8a, 0x0c81, 0x2c89, 0x2c88, 0x2540, 0x2541,
-    0x2d00, 0x2e07, 0x0d00, 0x2640, 0x2641, 0x2e80, 0x0d01, 0x26c8,
-    0x26c9, 0x2f00, 0x2f84, 0x0d02, 0x2f83, 0x2f82, 0x0d40, 0x26d8,
-    0x26d9, 0x3186, 0x0d04, 0x2740, 0x2741, 0x3100, 0x3086, 0x0d06,
-    0x3085, 0x3084, 0x0d41, 0x2840, 0x3200, 0x0d07, 0x284f, 0x2850,
-    0x3280, 0x2c84, 0x2e03, 0x2857, 0x0d42, 0x2c81, 0x2c80, 0x24c0,
-    0x24c1, 0x2c86, 0x2c83, 0x28c0, 0x0d43, 0x25c0, 0x25c1, 0x2940,
-    0x0d44, 0x26c0, 0x26c1, 0x2e05, 0x2e02, 0x29c0, 0x0d45, 0x2f05,
-    0x2f04, 0x0d80, 0x26d0, 0x26d1, 0x2f80, 0x2a40, 0x0d82, 0x26e0,
-    0x26e1, 0x3080, 0x3081, 0x2ac0, 0x0d83, 0x3004, 0x3003, 0x0d81,
-    0x27c0, 0x27c1, 0x3082, 0x2b40, 0x0d84, 0x2847, 0x2848, 0x3184,
-    0x3181, 0x2f06, 0x0d08, 0x2f81, 0x3005, 0x0d46, 0x3083, 0x3182,
-    0x0e00, 0x0e01, 0x0f40, 0x1180, 0x1182, 0x0f03, 0x0f00, 0x11c0,
-    0x0f01, 0x1140, 0x1202, 0x1204, 0x0f81, 0x1240, 0x0fc0, 0x1242,
-    0x0f80, 0x1244, 0x1284, 0x0f82, 0x1286, 0x1288, 0x128a, 0x12c0,
-    0x1282, 0x1181, 0x1183, 0x1043, 0x1040, 0x11c1, 0x1041, 0x1141,
-    0x1203, 0x1205, 0x10c1, 0x1241, 0x1000, 0x1243, 0x10c0, 0x1245,
-    0x1285, 0x10c2, 0x1287, 0x1289, 0x128b, 0x12c1, 0x1283, 0x1080,
-    0x1100, 0x1101, 0x1200, 0x1201, 0x1280, 0x1281, 0x1340, 0x1341,
-    0x1343, 0x1342, 0x1344, 0x13c2, 0x1400, 0x13c0, 0x1440, 0x1480,
-    0x14c0, 0x1540, 0x1541, 0x1740, 0x1700, 0x1741, 0x17c0, 0x1800,
-    0x1802, 0x1801, 0x1840, 0x1880, 0x1900, 0x18c0, 0x18c1, 0x1901,
-    0x1940, 0x1942, 0x1941, 0x1980, 0x19c0, 0x19c2, 0x19c1, 0x1c80,
-    0x1cc0, 0x1dc0, 0x1f80, 0x2000, 0x2002, 0x2004, 0x2006, 0x2008,
-    0x2040, 0x2080, 0x2082, 0x20c0, 0x20c1, 0x2100, 0x22b8, 0x22b9,
-    0x2310, 0x2311, 0x231c, 0x231d, 0x244c, 0x2456, 0x244d, 0x2457,
-    0x248c, 0x248d, 0x249e, 0x249f, 0x2500, 0x2502, 0x2504, 0x2bc0,
-    0x2501, 0x2503, 0x2505, 0x2bc1, 0x2bc2, 0x2bc3, 0x2bc4, 0x2bc5,
-    0x2bc6, 0x2bc7, 0x2580, 0x2582, 0x2584, 0x2bc8, 0x2581, 0x2583,
-    0x2585, 0x2bc9, 0x2bca, 0x2bcb, 0x2bcc, 0x2bcd, 0x2bce, 0x2bcf,
-    0x2600, 0x2602, 0x2601, 0x2603, 0x2680, 0x2682, 0x2681, 0x2683,
-    0x26c2, 0x26c4, 0x26c6, 0x2c00, 0x26c3, 0x26c5, 0x26c7, 0x2c01,
-    0x2c02, 0x2c03, 0x2c04, 0x2c05, 0x2c06, 0x2c07, 0x26ca, 0x26cc,
-    0x26ce, 0x2c08, 0x26cb, 0x26cd, 0x26cf, 0x2c09, 0x2c0a, 0x2c0b,
-    0x2c0c, 0x2c0d, 0x2c0e, 0x2c0f, 0x26d2, 0x26d4, 0x26d6, 0x26d3,
-    0x26d5, 0x26d7, 0x26da, 0x26dc, 0x26de, 0x26db, 0x26dd, 0x26df,
-    0x2700, 0x2702, 0x2701, 0x2703, 0x2780, 0x2782, 0x2781, 0x2783,
-    0x2800, 0x2802, 0x2804, 0x2801, 0x2803, 0x2805, 0x2842, 0x2844,
-    0x2846, 0x2849, 0x284b, 0x284d, 0x2c40, 0x284a, 0x284c, 0x284e,
-    0x2c41, 0x2c42, 0x2c43, 0x2c44, 0x2c45, 0x2c46, 0x2c47, 0x2851,
-    0x2853, 0x2855, 0x2c48, 0x2852, 0x2854, 0x2856, 0x2c49, 0x2c4a,
-    0x2c4b, 0x2c4c, 0x2c4d, 0x2c4e, 0x2c4f, 0x2c82, 0x2e01, 0x3180,
-    0x2c87, 0x2f01, 0x2f02, 0x2f03, 0x2e06, 0x3185, 0x3000, 0x3001,
-    0x3002, 0x4640, 0x4641, 0x4680, 0x46c0, 0x46c2, 0x46c1, 0x4700,
-    0x4740, 0x4780, 0x47c0, 0x47c2, 0x4900, 0x4940, 0x4980, 0x4982,
-    0x4a00, 0x49c2, 0x4a03, 0x4a04, 0x4a40, 0x4a41, 0x4a80, 0x4a81,
-    0x4ac0, 0x4ac1, 0x4bc0, 0x4bc1, 0x4b00, 0x4b01, 0x4b40, 0x4b41,
-    0x4bc2, 0x4bc3, 0x4b80, 0x4b81, 0x4b82, 0x4b83, 0x4c00, 0x4c01,
-    0x4c02, 0x4c03, 0x5600, 0x5440, 0x5442, 0x5444, 0x5446, 0x5448,
-    0x544a, 0x544c, 0x544e, 0x5450, 0x5452, 0x5454, 0x5456, 0x5480,
-    0x5482, 0x5484, 0x54c0, 0x54c1, 0x5500, 0x5501, 0x5540, 0x5541,
-    0x5580, 0x5581, 0x55c0, 0x55c1, 0x5680, 0x58c0, 0x5700, 0x5702,
-    0x5704, 0x5706, 0x5708, 0x570a, 0x570c, 0x570e, 0x5710, 0x5712,
-    0x5714, 0x5716, 0x5740, 0x5742, 0x5744, 0x5780, 0x5781, 0x57c0,
-    0x57c1, 0x5800, 0x5801, 0x5840, 0x5841, 0x5880, 0x5881, 0x5900,
-    0x5901, 0x5902, 0x5903, 0x5940, 0x8e40, 0x8e42, 0x8e80, 0x8ec0,
-    0x8ec1, 0x8f00, 0x8f01, 0x8f41, 0x8f40, 0x8f43, 0x8f80, 0x8f81,
-};
-
-typedef enum {
-    UNICODE_GC_Cn,
-    UNICODE_GC_Lu,
-    UNICODE_GC_Ll,
-    UNICODE_GC_Lt,
-    UNICODE_GC_Lm,
-    UNICODE_GC_Lo,
-    UNICODE_GC_Mn,
-    UNICODE_GC_Mc,
-    UNICODE_GC_Me,
-    UNICODE_GC_Nd,
-    UNICODE_GC_Nl,
-    UNICODE_GC_No,
-    UNICODE_GC_Sm,
-    UNICODE_GC_Sc,
-    UNICODE_GC_Sk,
-    UNICODE_GC_So,
-    UNICODE_GC_Pc,
-    UNICODE_GC_Pd,
-    UNICODE_GC_Ps,
-    UNICODE_GC_Pe,
-    UNICODE_GC_Pi,
-    UNICODE_GC_Pf,
-    UNICODE_GC_Po,
-    UNICODE_GC_Zs,
-    UNICODE_GC_Zl,
-    UNICODE_GC_Zp,
-    UNICODE_GC_Cc,
-    UNICODE_GC_Cf,
-    UNICODE_GC_Cs,
-    UNICODE_GC_Co,
-    UNICODE_GC_LC,
-    UNICODE_GC_L,
-    UNICODE_GC_M,
-    UNICODE_GC_N,
-    UNICODE_GC_S,
-    UNICODE_GC_P,
-    UNICODE_GC_Z,
-    UNICODE_GC_C,
-    UNICODE_GC_COUNT,
-} UnicodeGCEnum;
-
-static const char unicode_gc_name_table[] =
-    "Cn,Unassigned"            "\0"
-    "Lu,Uppercase_Letter"      "\0"
-    "Ll,Lowercase_Letter"      "\0"
-    "Lt,Titlecase_Letter"      "\0"
-    "Lm,Modifier_Letter"       "\0"
-    "Lo,Other_Letter"          "\0"
-    "Mn,Nonspacing_Mark"       "\0"
-    "Mc,Spacing_Mark"          "\0"
-    "Me,Enclosing_Mark"        "\0"
-    "Nd,Decimal_Number,digit"  "\0"
-    "Nl,Letter_Number"         "\0"
-    "No,Other_Number"          "\0"
-    "Sm,Math_Symbol"           "\0"
-    "Sc,Currency_Symbol"       "\0"
-    "Sk,Modifier_Symbol"       "\0"
-    "So,Other_Symbol"          "\0"
-    "Pc,Connector_Punctuation" "\0"
-    "Pd,Dash_Punctuation"      "\0"
-    "Ps,Open_Punctuation"      "\0"
-    "Pe,Close_Punctuation"     "\0"
-    "Pi,Initial_Punctuation"   "\0"
-    "Pf,Final_Punctuation"     "\0"
-    "Po,Other_Punctuation"     "\0"
-    "Zs,Space_Separator"       "\0"
-    "Zl,Line_Separator"        "\0"
-    "Zp,Paragraph_Separator"   "\0"
-    "Cc,Control,cntrl"         "\0"
-    "Cf,Format"                "\0"
-    "Cs,Surrogate"             "\0"
-    "Co,Private_Use"           "\0"
-    "LC,Cased_Letter"          "\0"
-    "L,Letter"                 "\0"
-    "M,Mark,Combining_Mark"    "\0"
-    "N,Number"                 "\0"
-    "S,Symbol"                 "\0"
-    "P,Punctuation,punct"      "\0"
-    "Z,Separator"              "\0"
-    "C,Other"                  "\0"
-;
-
-static const uint8_t unicode_gc_table[3719] = {
-    0xfa, 0x18, 0x17, 0x56, 0x0d, 0x56, 0x12, 0x13,
-    0x16, 0x0c, 0x16, 0x11, 0x36, 0xe9, 0x02, 0x36,
-    0x4c, 0x36, 0xe1, 0x12, 0x12, 0x16, 0x13, 0x0e,
-    0x10, 0x0e, 0xe2, 0x12, 0x12, 0x0c, 0x13, 0x0c,
-    0xfa, 0x19, 0x17, 0x16, 0x6d, 0x0f, 0x16, 0x0e,
-    0x0f, 0x05, 0x14, 0x0c, 0x1b, 0x0f, 0x0e, 0x0f,
-    0x0c, 0x2b, 0x0e, 0x02, 0x36, 0x0e, 0x0b, 0x05,
-    0x15, 0x4b, 0x16, 0xe1, 0x0f, 0x0c, 0xc1, 0xe2,
-    0x10, 0x0c, 0xe2, 0x00, 0xff, 0x30, 0x02, 0xff,
-    0x08, 0x02, 0xff, 0x27, 0xbf, 0x22, 0x21, 0x02,
-    0x5f, 0x5f, 0x21, 0x22, 0x61, 0x02, 0x21, 0x02,
-    0x41, 0x42, 0x21, 0x02, 0x21, 0x02, 0x9f, 0x7f,
-    0x02, 0x5f, 0x5f, 0x21, 0x02, 0x5f, 0x3f, 0x02,
-    0x05, 0x3f, 0x22, 0x65, 0x01, 0x03, 0x02, 0x01,
-    0x03, 0x02, 0x01, 0x03, 0x02, 0xff, 0x08, 0x02,
-    0xff, 0x0a, 0x02, 0x01, 0x03, 0x02, 0x5f, 0x21,
-    0x02, 0xff, 0x32, 0xa2, 0x21, 0x02, 0x21, 0x22,
-    0x5f, 0x41, 0x02, 0xff, 0x00, 0xe2, 0x3c, 0x05,
-    0xe2, 0x13, 0xe4, 0x0a, 0x6e, 0xe4, 0x04, 0xee,
-    0x06, 0x84, 0xce, 0x04, 0x0e, 0x04, 0xee, 0x09,
-    0xe6, 0x68, 0x7f, 0x04, 0x0e, 0x3f, 0x20, 0x04,
-    0x42, 0x16, 0x01, 0x60, 0x2e, 0x01, 0x16, 0x41,
-    0x00, 0x01, 0x00, 0x21, 0x02, 0xe1, 0x09, 0x00,
-    0xe1, 0x01, 0xe2, 0x1b, 0x3f, 0x02, 0x41, 0x42,
-    0xff, 0x10, 0x62, 0x3f, 0x0c, 0x5f, 0x3f, 0x02,
-    0xe1, 0x2b, 0xe2, 0x28, 0xff, 0x1a, 0x0f, 0x86,
-    0x28, 0xff, 0x2f, 0xff, 0x06, 0x02, 0xff, 0x58,
-    0x00, 0xe1, 0x1e, 0x20, 0x04, 0xb6, 0xe2, 0x21,
-    0x16, 0x11, 0x20, 0x2f, 0x0d, 0x00, 0xe6, 0x25,
-    0x11, 0x06, 0x16, 0x26, 0x16, 0x26, 0x16, 0x06,
-    0xe0, 0x00, 0xe5, 0x13, 0x60, 0x65, 0x36, 0xe0,
-    0x03, 0xbb, 0x4c, 0x36, 0x0d, 0x36, 0x2f, 0xe6,
-    0x03, 0x16, 0x1b, 0x00, 0x36, 0xe5, 0x18, 0x04,
-    0xe5, 0x02, 0xe6, 0x0d, 0xe9, 0x02, 0x76, 0x25,
-    0x06, 0xe5, 0x5b, 0x16, 0x05, 0xc6, 0x1b, 0x0f,
-    0xa6, 0x24, 0x26, 0x0f, 0x66, 0x25, 0xe9, 0x02,
-    0x45, 0x2f, 0x05, 0xf6, 0x06, 0x00, 0x1b, 0x05,
-    0x06, 0xe5, 0x16, 0xe6, 0x13, 0x20, 0xe5, 0x51,
-    0xe6, 0x03, 0x05, 0xe0, 0x06, 0xe9, 0x02, 0xe5,
-    0x19, 0xe6, 0x01, 0x24, 0x0f, 0x56, 0x04, 0x20,
-    0x06, 0x2d, 0xe5, 0x0e, 0x66, 0x04, 0xe6, 0x01,
-    0x04, 0x46, 0x04, 0x86, 0x20, 0xf6, 0x07, 0x00,
-    0xe5, 0x11, 0x46, 0x20, 0x16, 0x00, 0xe5, 0x03,
-    0xe0, 0x2d, 0xe5, 0x0d, 0x00, 0xe5, 0x00, 0xe0,
-    0x0d, 0xe6, 0x07, 0x1b, 0xe6, 0x18, 0x07, 0xe5,
-    0x2e, 0x06, 0x07, 0x06, 0x05, 0x47, 0xe6, 0x00,
-    0x67, 0x06, 0x27, 0x05, 0xc6, 0xe5, 0x02, 0x26,
-    0x36, 0xe9, 0x02, 0x16, 0x04, 0xe5, 0x07, 0x06,
-    0x27, 0x00, 0xe5, 0x00, 0x20, 0x25, 0x20, 0xe5,
-    0x0e, 0x00, 0xc5, 0x00, 0x05, 0x40, 0x65, 0x20,
-    0x06, 0x05, 0x47, 0x66, 0x20, 0x27, 0x20, 0x27,
-    0x06, 0x05, 0xe0, 0x00, 0x07, 0x60, 0x25, 0x00,
-    0x45, 0x26, 0x20, 0xe9, 0x02, 0x25, 0x2d, 0xab,
-    0x0f, 0x0d, 0x05, 0x16, 0x06, 0x20, 0x26, 0x07,
-    0x00, 0xa5, 0x60, 0x25, 0x20, 0xe5, 0x0e, 0x00,
-    0xc5, 0x00, 0x25, 0x00, 0x25, 0x00, 0x25, 0x20,
-    0x06, 0x00, 0x47, 0x26, 0x60, 0x26, 0x20, 0x46,
-    0x40, 0x06, 0xc0, 0x65, 0x00, 0x05, 0xc0, 0xe9,
-    0x02, 0x26, 0x45, 0x06, 0x16, 0xe0, 0x02, 0x26,
-    0x07, 0x00, 0xe5, 0x01, 0x00, 0x45, 0x00, 0xe5,
-    0x0e, 0x00, 0xc5, 0x00, 0x25, 0x00, 0x85, 0x20,
-    0x06, 0x05, 0x47, 0x86, 0x00, 0x26, 0x07, 0x00,
-    0x27, 0x06, 0x20, 0x05, 0xe0, 0x07, 0x25, 0x26,
-    0x20, 0xe9, 0x02, 0x16, 0x0d, 0xc0, 0x05, 0xa6,
-    0x00, 0x06, 0x27, 0x00, 0xe5, 0x00, 0x20, 0x25,
-    0x20, 0xe5, 0x0e, 0x00, 0xc5, 0x00, 0x25, 0x00,
-    0x85, 0x20, 0x06, 0x05, 0x07, 0x06, 0x07, 0x66,
-    0x20, 0x27, 0x20, 0x27, 0x06, 0xe0, 0x00, 0x06,
-    0x07, 0x60, 0x25, 0x00, 0x45, 0x26, 0x20, 0xe9,
-    0x02, 0x0f, 0x05, 0xab, 0xe0, 0x02, 0x06, 0x05,
-    0x00, 0xa5, 0x40, 0x45, 0x00, 0x65, 0x40, 0x25,
-    0x00, 0x05, 0x00, 0x25, 0x40, 0x25, 0x40, 0x45,
-    0x40, 0xe5, 0x04, 0x60, 0x27, 0x06, 0x27, 0x40,
-    0x47, 0x00, 0x47, 0x06, 0x20, 0x05, 0xa0, 0x07,
-    0xe0, 0x06, 0xe9, 0x02, 0x4b, 0xaf, 0x0d, 0x0f,
-    0x80, 0x06, 0x47, 0x06, 0xe5, 0x00, 0x00, 0x45,
-    0x00, 0xe5, 0x0f, 0x00, 0xe5, 0x08, 0x40, 0x05,
-    0x46, 0x67, 0x00, 0x46, 0x00, 0x66, 0xc0, 0x26,
-    0x00, 0x45, 0x80, 0x25, 0x26, 0x20, 0xe9, 0x02,
-    0xc0, 0x16, 0xcb, 0x0f, 0x05, 0x06, 0x27, 0x16,
-    0xe5, 0x00, 0x00, 0x45, 0x00, 0xe5, 0x0f, 0x00,
-    0xe5, 0x02, 0x00, 0x85, 0x20, 0x06, 0x05, 0x07,
-    0x06, 0x87, 0x00, 0x06, 0x27, 0x00, 0x27, 0x26,
-    0xc0, 0x27, 0xc0, 0x05, 0x00, 0x25, 0x26, 0x20,
-    0xe9, 0x02, 0x00, 0x25, 0xe0, 0x05, 0x26, 0x27,
-    0x00, 0xe5, 0x00, 0x00, 0x45, 0x00, 0xe5, 0x21,
-    0x26, 0x05, 0x47, 0x66, 0x00, 0x47, 0x00, 0x47,
-    0x06, 0x05, 0x0f, 0x60, 0x45, 0x07, 0xcb, 0x45,
-    0x26, 0x20, 0xe9, 0x02, 0xeb, 0x01, 0x0f, 0xa5,
-    0x20, 0x27, 0x00, 0xe5, 0x0a, 0x40, 0xe5, 0x10,
-    0x00, 0xe5, 0x01, 0x00, 0x05, 0x20, 0xc5, 0x40,
-    0x06, 0x60, 0x47, 0x46, 0x00, 0x06, 0x00, 0xe7,
-    0x00, 0xa0, 0xe9, 0x02, 0x20, 0x27, 0x16, 0xe0,
-    0x04, 0xe5, 0x28, 0x06, 0x25, 0xc6, 0x60, 0x0d,
-    0xa5, 0x04, 0xe6, 0x00, 0x16, 0xe9, 0x02, 0x36,
-    0xe0, 0x1d, 0x25, 0x00, 0x05, 0x00, 0x85, 0x00,
-    0xe5, 0x10, 0x00, 0x05, 0x00, 0xe5, 0x02, 0x06,
-    0x25, 0xe6, 0x01, 0x05, 0x20, 0x85, 0x00, 0x04,
-    0x00, 0xa6, 0x20, 0xe9, 0x02, 0x20, 0x65, 0xe0,
-    0x18, 0x05, 0x4f, 0xf6, 0x07, 0x0f, 0x16, 0x4f,
-    0x26, 0xaf, 0xe9, 0x02, 0xeb, 0x02, 0x0f, 0x06,
-    0x0f, 0x06, 0x0f, 0x06, 0x12, 0x13, 0x12, 0x13,
-    0x27, 0xe5, 0x00, 0x00, 0xe5, 0x1c, 0x60, 0xe6,
-    0x06, 0x07, 0x86, 0x16, 0x26, 0x85, 0xe6, 0x03,
-    0x00, 0xe6, 0x1c, 0x00, 0xef, 0x00, 0x06, 0xaf,
-    0x00, 0x2f, 0x96, 0x6f, 0x36, 0xe0, 0x1d, 0xe5,
-    0x23, 0x27, 0x66, 0x07, 0xa6, 0x07, 0x26, 0x27,
-    0x26, 0x05, 0xe9, 0x02, 0xb6, 0xa5, 0x27, 0x26,
-    0x65, 0x46, 0x05, 0x47, 0x25, 0xc7, 0x45, 0x66,
-    0xe5, 0x05, 0x06, 0x27, 0x26, 0xa7, 0x06, 0x05,
-    0x07, 0xe9, 0x02, 0x47, 0x06, 0x2f, 0xe1, 0x1e,
-    0x00, 0x01, 0x80, 0x01, 0x20, 0xe2, 0x23, 0x16,
-    0x04, 0x42, 0xe5, 0x80, 0xc1, 0x00, 0x65, 0x20,
-    0xc5, 0x00, 0x05, 0x00, 0x65, 0x20, 0xe5, 0x21,
-    0x00, 0x65, 0x20, 0xe5, 0x19, 0x00, 0x65, 0x20,
-    0xc5, 0x00, 0x05, 0x00, 0x65, 0x20, 0xe5, 0x07,
-    0x00, 0xe5, 0x31, 0x00, 0x65, 0x20, 0xe5, 0x3b,
-    0x20, 0x46, 0xf6, 0x01, 0xeb, 0x0c, 0x40, 0xe5,
-    0x08, 0xef, 0x02, 0xa0, 0xe1, 0x4e, 0x20, 0xa2,
-    0x20, 0x11, 0xe5, 0x81, 0xe4, 0x0f, 0x16, 0xe5,
-    0x09, 0x17, 0xe5, 0x12, 0x12, 0x13, 0x40, 0xe5,
-    0x43, 0x56, 0x4a, 0xe5, 0x00, 0xc0, 0xe5, 0x05,
-    0x00, 0x65, 0x46, 0xe0, 0x03, 0xe5, 0x0a, 0x46,
-    0x36, 0xe0, 0x01, 0xe5, 0x0a, 0x26, 0xe0, 0x04,
-    0xe5, 0x05, 0x00, 0x45, 0x00, 0x26, 0xe0, 0x04,
-    0xe5, 0x2c, 0x26, 0x07, 0xc6, 0xe7, 0x00, 0x06,
-    0x27, 0xe6, 0x03, 0x56, 0x04, 0x56, 0x0d, 0x05,
-    0x06, 0x20, 0xe9, 0x02, 0xa0, 0xeb, 0x02, 0xa0,
-    0xb6, 0x11, 0x76, 0x46, 0x1b, 0x00, 0xe9, 0x02,
-    0xa0, 0xe5, 0x1b, 0x04, 0xe5, 0x2d, 0xc0, 0x85,
-    0x26, 0xe5, 0x1a, 0x06, 0x05, 0x80, 0xe5, 0x3e,
-    0xe0, 0x02, 0xe5, 0x17, 0x00, 0x46, 0x67, 0x26,
-    0x47, 0x60, 0x27, 0x06, 0xa7, 0x46, 0x60, 0x0f,
-    0x40, 0x36, 0xe9, 0x02, 0xe5, 0x16, 0x20, 0x85,
-    0xe0, 0x03, 0xe5, 0x24, 0x60, 0xe5, 0x12, 0xa0,
-    0xe9, 0x02, 0x0b, 0x40, 0xef, 0x1a, 0xe5, 0x0f,
-    0x26, 0x27, 0x06, 0x20, 0x36, 0xe5, 0x2d, 0x07,
-    0x06, 0x07, 0xc6, 0x00, 0x06, 0x07, 0x06, 0x27,
-    0xe6, 0x00, 0xa7, 0xe6, 0x02, 0x20, 0x06, 0xe9,
-    0x02, 0xa0, 0xe9, 0x02, 0xa0, 0xd6, 0x04, 0xb6,
-    0x20, 0xe6, 0x06, 0x08, 0xe0, 0x39, 0x66, 0x07,
-    0xe5, 0x27, 0x06, 0x07, 0x86, 0x07, 0x06, 0x87,
-    0x06, 0x27, 0xc5, 0x60, 0xe9, 0x02, 0xd6, 0xef,
-    0x02, 0xe6, 0x01, 0xef, 0x01, 0x40, 0x26, 0x07,
-    0xe5, 0x16, 0x07, 0x66, 0x27, 0x26, 0x07, 0x46,
-    0x25, 0xe9, 0x02, 0xe5, 0x24, 0x06, 0x07, 0x26,
-    0x47, 0x06, 0x07, 0x46, 0x27, 0xe0, 0x00, 0x76,
-    0xe5, 0x1c, 0xe7, 0x00, 0xe6, 0x00, 0x27, 0x26,
-    0x40, 0x96, 0xe9, 0x02, 0x40, 0x45, 0xe9, 0x02,
-    0xe5, 0x16, 0xa4, 0x36, 0xe2, 0x01, 0xc0, 0xe1,
-    0x23, 0x20, 0x41, 0xf6, 0x00, 0xe0, 0x00, 0x46,
-    0x16, 0xe6, 0x05, 0x07, 0xc6, 0x65, 0x06, 0xa5,
-    0x06, 0x25, 0x07, 0x26, 0x05, 0x80, 0xe2, 0x24,
-    0xe4, 0x37, 0xe2, 0x05, 0x04, 0xe2, 0x1a, 0xe4,
-    0x1d, 0xe6, 0x32, 0x00, 0x86, 0xff, 0x80, 0x0e,
-    0xe2, 0x00, 0xff, 0x5a, 0xe2, 0x00, 0xe1, 0x00,
-    0xa2, 0x20, 0xa1, 0x20, 0xe2, 0x00, 0xe1, 0x00,
-    0xe2, 0x00, 0xe1, 0x00, 0xa2, 0x20, 0xa1, 0x20,
-    0xe2, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01,
-    0x00, 0x3f, 0xc2, 0xe1, 0x00, 0xe2, 0x06, 0x20,
-    0xe2, 0x00, 0xe3, 0x00, 0xe2, 0x00, 0xe3, 0x00,
-    0xe2, 0x00, 0xe3, 0x00, 0x82, 0x00, 0x22, 0x61,
-    0x03, 0x0e, 0x02, 0x4e, 0x42, 0x00, 0x22, 0x61,
-    0x03, 0x4e, 0x62, 0x20, 0x22, 0x61, 0x00, 0x4e,
-    0xe2, 0x00, 0x81, 0x4e, 0x20, 0x42, 0x00, 0x22,
-    0x61, 0x03, 0x2e, 0x00, 0xf7, 0x03, 0x9b, 0xb1,
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-    0x8f, 0x3f, 0xe5, 0x81, 0xbf, 0xe0, 0xa1, 0x31,
-    0xe5, 0x81, 0xb1, 0xc0, 0xe5, 0x17, 0x00, 0xe9,
-    0x02, 0x60, 0x36, 0xe0, 0x58, 0xe5, 0x16, 0x20,
-    0x86, 0x16, 0xe0, 0x02, 0xe5, 0x28, 0xc6, 0x96,
-    0x6f, 0x64, 0x16, 0x0f, 0xe0, 0x02, 0xe9, 0x02,
-    0x00, 0xcb, 0x00, 0xe5, 0x0d, 0x80, 0xe5, 0x0b,
-    0xe0, 0x82, 0x28, 0xe1, 0x18, 0xe2, 0x18, 0xeb,
-    0x0f, 0x76, 0xe0, 0x5d, 0xe5, 0x43, 0x60, 0x06,
-    0x05, 0xe7, 0x2f, 0xc0, 0x66, 0xe4, 0x05, 0xe0,
-    0x38, 0x24, 0x16, 0x04, 0xe0, 0x14, 0xe5, 0x97,
-    0x70, 0xe0, 0x00, 0xe5, 0x82, 0x6b, 0xe0, 0xa4,
-    0x85, 0xe5, 0x80, 0x97, 0xe0, 0x29, 0x45, 0xe0,
-    0x09, 0x65, 0xe0, 0x00, 0xe5, 0x81, 0x04, 0xe0,
-    0x88, 0x7c, 0xe5, 0x63, 0x80, 0xe5, 0x05, 0x40,
-    0xe5, 0x01, 0xc0, 0xe5, 0x02, 0x20, 0x0f, 0x26,
-    0x16, 0x7b, 0xe0, 0x92, 0xd4, 0xef, 0x80, 0x6e,
-    0xe0, 0x02, 0xef, 0x1f, 0x20, 0xef, 0x34, 0x27,
-    0x46, 0x4f, 0xa7, 0xfb, 0x00, 0xe6, 0x00, 0x2f,
-    0xc6, 0xef, 0x16, 0x66, 0xef, 0x33, 0xe0, 0x0f,
-    0xef, 0x3a, 0x46, 0x0f, 0xe0, 0x80, 0x12, 0xeb,
-    0x0c, 0xe0, 0x04, 0xef, 0x4f, 0xe0, 0x01, 0xeb,
-    0x11, 0xe0, 0x7f, 0xe1, 0x12, 0xe2, 0x12, 0xe1,
-    0x12, 0xc2, 0x00, 0xe2, 0x0a, 0xe1, 0x12, 0xe2,
-    0x12, 0x01, 0x00, 0x21, 0x20, 0x01, 0x20, 0x21,
-    0x20, 0x61, 0x00, 0xe1, 0x00, 0x62, 0x00, 0x02,
-    0x00, 0xc2, 0x00, 0xe2, 0x03, 0xe1, 0x12, 0xe2,
-    0x12, 0x21, 0x00, 0x61, 0x20, 0xe1, 0x00, 0x00,
-    0xc1, 0x00, 0xe2, 0x12, 0x21, 0x00, 0x61, 0x00,
-    0x81, 0x00, 0x01, 0x40, 0xc1, 0x00, 0xe2, 0x12,
-    0xe1, 0x12, 0xe2, 0x12, 0xe1, 0x12, 0xe2, 0x12,
-    0xe1, 0x12, 0xe2, 0x12, 0xe1, 0x12, 0xe2, 0x12,
-    0xe1, 0x12, 0xe2, 0x12, 0xe1, 0x12, 0xe2, 0x14,
-    0x20, 0xe1, 0x11, 0x0c, 0xe2, 0x11, 0x0c, 0xa2,
-    0xe1, 0x11, 0x0c, 0xe2, 0x11, 0x0c, 0xa2, 0xe1,
-    0x11, 0x0c, 0xe2, 0x11, 0x0c, 0xa2, 0xe1, 0x11,
-    0x0c, 0xe2, 0x11, 0x0c, 0xa2, 0xe1, 0x11, 0x0c,
-    0xe2, 0x11, 0x0c, 0xa2, 0x3f, 0x20, 0xe9, 0x2a,
-    0xef, 0x81, 0x78, 0xe6, 0x2f, 0x6f, 0xe6, 0x2a,
-    0xef, 0x00, 0x06, 0xef, 0x06, 0x06, 0x2f, 0x96,
-    0xe0, 0x07, 0x86, 0x00, 0xe6, 0x07, 0xe0, 0x84,
-    0xc8, 0xc6, 0x00, 0xe6, 0x09, 0x20, 0xc6, 0x00,
-    0x26, 0x00, 0x86, 0xe0, 0x80, 0x4d, 0xe5, 0x25,
-    0x40, 0xc6, 0xc4, 0x20, 0xe9, 0x02, 0x60, 0x05,
-    0x0f, 0xe0, 0x80, 0xe8, 0xe5, 0x24, 0x66, 0xe9,
-    0x02, 0x80, 0x0d, 0xe0, 0x84, 0x78, 0xe5, 0x80,
-    0x3d, 0x20, 0xeb, 0x01, 0xc6, 0xe0, 0x21, 0xe1,
-    0x1a, 0xe2, 0x1a, 0xc6, 0x04, 0x60, 0xe9, 0x02,
-    0x60, 0x36, 0xe0, 0x82, 0x89, 0xeb, 0x33, 0x0f,
-    0x4b, 0x0d, 0x6b, 0xe0, 0x44, 0xeb, 0x25, 0x0f,
-    0xeb, 0x07, 0xe0, 0x80, 0x3a, 0x65, 0x00, 0xe5,
-    0x13, 0x00, 0x25, 0x00, 0x05, 0x20, 0x05, 0x00,
-    0xe5, 0x02, 0x00, 0x65, 0x00, 0x05, 0x00, 0x05,
-    0xa0, 0x05, 0x60, 0x05, 0x00, 0x05, 0x00, 0x05,
-    0x00, 0x45, 0x00, 0x25, 0x00, 0x05, 0x20, 0x05,
-    0x00, 0x05, 0x00, 0x05, 0x00, 0x05, 0x00, 0x05,
-    0x00, 0x25, 0x00, 0x05, 0x20, 0x65, 0x00, 0xc5,
-    0x00, 0x65, 0x00, 0x65, 0x00, 0x05, 0x00, 0xe5,
-    0x02, 0x00, 0xe5, 0x09, 0x80, 0x45, 0x00, 0x85,
-    0x00, 0xe5, 0x09, 0xe0, 0x2c, 0x2c, 0xe0, 0x80,
-    0x86, 0xef, 0x24, 0x60, 0xef, 0x5c, 0xe0, 0x04,
-    0xef, 0x07, 0x20, 0xef, 0x07, 0x00, 0xef, 0x07,
-    0x00, 0xef, 0x1d, 0xe0, 0x02, 0xeb, 0x05, 0x40,
-    0xef, 0x55, 0x40, 0xef, 0x35, 0xe0, 0x31, 0xef,
-    0x15, 0xe0, 0x05, 0xef, 0x24, 0x60, 0xef, 0x01,
-    0xc0, 0x2f, 0xe0, 0x06, 0xaf, 0xe0, 0x80, 0x12,
-    0xef, 0x80, 0x73, 0x8e, 0xef, 0x82, 0x4e, 0xe0,
-    0x02, 0xef, 0x05, 0x40, 0xef, 0x03, 0x80, 0xef,
-    0x6c, 0xe0, 0x04, 0xef, 0x51, 0xc0, 0xef, 0x04,
-    0xe0, 0x0c, 0xef, 0x04, 0x60, 0xef, 0x30, 0xe0,
-    0x00, 0xef, 0x02, 0xa0, 0xef, 0x20, 0xe0, 0x00,
-    0xef, 0x16, 0xe0, 0x4a, 0xef, 0x04, 0x00, 0xef,
-    0x5d, 0x00, 0x6f, 0x40, 0xef, 0x21, 0x20, 0xaf,
-    0x40, 0xef, 0x15, 0x20, 0xef, 0x7f, 0xe0, 0x04,
-    0xef, 0x06, 0x20, 0x6f, 0x60, 0x4f, 0x80, 0x4f,
-    0xe0, 0x05, 0xaf, 0xe0, 0x84, 0xe2, 0xe5, 0xc0,
-    0x66, 0x4f, 0xe0, 0x21, 0xe5, 0x8f, 0xad, 0xe0,
-    0x03, 0xe5, 0x80, 0x56, 0x20, 0xe5, 0x95, 0xfa,
-    0xe0, 0x06, 0xe5, 0x9c, 0xa9, 0xe0, 0x8b, 0x97,
-    0xe5, 0x81, 0x96, 0xe0, 0xca, 0xc5, 0x5b, 0x1b,
-    0xe0, 0x16, 0xfb, 0x58, 0xe0, 0x78, 0xe6, 0x80,
-    0x68, 0xe0, 0xc0, 0xbd, 0x88, 0xfd, 0xc0, 0xbf,
-    0x76, 0x20, 0xfd, 0xc0, 0xbf, 0x76, 0x20,
-};
-
-typedef enum {
-    UNICODE_SCRIPT_Unknown,
-    UNICODE_SCRIPT_Adlam,
-    UNICODE_SCRIPT_Ahom,
-    UNICODE_SCRIPT_Anatolian_Hieroglyphs,
-    UNICODE_SCRIPT_Arabic,
-    UNICODE_SCRIPT_Armenian,
-    UNICODE_SCRIPT_Avestan,
-    UNICODE_SCRIPT_Balinese,
-    UNICODE_SCRIPT_Bamum,
-    UNICODE_SCRIPT_Bassa_Vah,
-    UNICODE_SCRIPT_Batak,
-    UNICODE_SCRIPT_Bengali,
-    UNICODE_SCRIPT_Bhaiksuki,
-    UNICODE_SCRIPT_Bopomofo,
-    UNICODE_SCRIPT_Brahmi,
-    UNICODE_SCRIPT_Braille,
-    UNICODE_SCRIPT_Buginese,
-    UNICODE_SCRIPT_Buhid,
-    UNICODE_SCRIPT_Canadian_Aboriginal,
-    UNICODE_SCRIPT_Carian,
-    UNICODE_SCRIPT_Caucasian_Albanian,
-    UNICODE_SCRIPT_Chakma,
-    UNICODE_SCRIPT_Cham,
-    UNICODE_SCRIPT_Cherokee,
-    UNICODE_SCRIPT_Common,
-    UNICODE_SCRIPT_Coptic,
-    UNICODE_SCRIPT_Cuneiform,
-    UNICODE_SCRIPT_Cypriot,
-    UNICODE_SCRIPT_Cyrillic,
-    UNICODE_SCRIPT_Deseret,
-    UNICODE_SCRIPT_Devanagari,
-    UNICODE_SCRIPT_Dogra,
-    UNICODE_SCRIPT_Duployan,
-    UNICODE_SCRIPT_Egyptian_Hieroglyphs,
-    UNICODE_SCRIPT_Elbasan,
-    UNICODE_SCRIPT_Elymaic,
-    UNICODE_SCRIPT_Ethiopic,
-    UNICODE_SCRIPT_Georgian,
-    UNICODE_SCRIPT_Glagolitic,
-    UNICODE_SCRIPT_Gothic,
-    UNICODE_SCRIPT_Grantha,
-    UNICODE_SCRIPT_Greek,
-    UNICODE_SCRIPT_Gujarati,
-    UNICODE_SCRIPT_Gunjala_Gondi,
-    UNICODE_SCRIPT_Gurmukhi,
-    UNICODE_SCRIPT_Han,
-    UNICODE_SCRIPT_Hangul,
-    UNICODE_SCRIPT_Hanifi_Rohingya,
-    UNICODE_SCRIPT_Hanunoo,
-    UNICODE_SCRIPT_Hatran,
-    UNICODE_SCRIPT_Hebrew,
-    UNICODE_SCRIPT_Hiragana,
-    UNICODE_SCRIPT_Imperial_Aramaic,
-    UNICODE_SCRIPT_Inherited,
-    UNICODE_SCRIPT_Inscriptional_Pahlavi,
-    UNICODE_SCRIPT_Inscriptional_Parthian,
-    UNICODE_SCRIPT_Javanese,
-    UNICODE_SCRIPT_Kaithi,
-    UNICODE_SCRIPT_Kannada,
-    UNICODE_SCRIPT_Katakana,
-    UNICODE_SCRIPT_Kayah_Li,
-    UNICODE_SCRIPT_Kharoshthi,
-    UNICODE_SCRIPT_Khmer,
-    UNICODE_SCRIPT_Khojki,
-    UNICODE_SCRIPT_Khudawadi,
-    UNICODE_SCRIPT_Lao,
-    UNICODE_SCRIPT_Latin,
-    UNICODE_SCRIPT_Lepcha,
-    UNICODE_SCRIPT_Limbu,
-    UNICODE_SCRIPT_Linear_A,
-    UNICODE_SCRIPT_Linear_B,
-    UNICODE_SCRIPT_Lisu,
-    UNICODE_SCRIPT_Lycian,
-    UNICODE_SCRIPT_Lydian,
-    UNICODE_SCRIPT_Makasar,
-    UNICODE_SCRIPT_Mahajani,
-    UNICODE_SCRIPT_Malayalam,
-    UNICODE_SCRIPT_Mandaic,
-    UNICODE_SCRIPT_Manichaean,
-    UNICODE_SCRIPT_Marchen,
-    UNICODE_SCRIPT_Masaram_Gondi,
-    UNICODE_SCRIPT_Medefaidrin,
-    UNICODE_SCRIPT_Meetei_Mayek,
-    UNICODE_SCRIPT_Mende_Kikakui,
-    UNICODE_SCRIPT_Meroitic_Cursive,
-    UNICODE_SCRIPT_Meroitic_Hieroglyphs,
-    UNICODE_SCRIPT_Miao,
-    UNICODE_SCRIPT_Modi,
-    UNICODE_SCRIPT_Mongolian,
-    UNICODE_SCRIPT_Mro,
-    UNICODE_SCRIPT_Multani,
-    UNICODE_SCRIPT_Myanmar,
-    UNICODE_SCRIPT_Nabataean,
-    UNICODE_SCRIPT_Nandinagari,
-    UNICODE_SCRIPT_New_Tai_Lue,
-    UNICODE_SCRIPT_Newa,
-    UNICODE_SCRIPT_Nko,
-    UNICODE_SCRIPT_Nushu,
-    UNICODE_SCRIPT_Nyiakeng_Puachue_Hmong,
-    UNICODE_SCRIPT_Ogham,
-    UNICODE_SCRIPT_Ol_Chiki,
-    UNICODE_SCRIPT_Old_Hungarian,
-    UNICODE_SCRIPT_Old_Italic,
-    UNICODE_SCRIPT_Old_North_Arabian,
-    UNICODE_SCRIPT_Old_Permic,
-    UNICODE_SCRIPT_Old_Persian,
-    UNICODE_SCRIPT_Old_Sogdian,
-    UNICODE_SCRIPT_Old_South_Arabian,
-    UNICODE_SCRIPT_Old_Turkic,
-    UNICODE_SCRIPT_Oriya,
-    UNICODE_SCRIPT_Osage,
-    UNICODE_SCRIPT_Osmanya,
-    UNICODE_SCRIPT_Pahawh_Hmong,
-    UNICODE_SCRIPT_Palmyrene,
-    UNICODE_SCRIPT_Pau_Cin_Hau,
-    UNICODE_SCRIPT_Phags_Pa,
-    UNICODE_SCRIPT_Phoenician,
-    UNICODE_SCRIPT_Psalter_Pahlavi,
-    UNICODE_SCRIPT_Rejang,
-    UNICODE_SCRIPT_Runic,
-    UNICODE_SCRIPT_Samaritan,
-    UNICODE_SCRIPT_Saurashtra,
-    UNICODE_SCRIPT_Sharada,
-    UNICODE_SCRIPT_Shavian,
-    UNICODE_SCRIPT_Siddham,
-    UNICODE_SCRIPT_SignWriting,
-    UNICODE_SCRIPT_Sinhala,
-    UNICODE_SCRIPT_Sogdian,
-    UNICODE_SCRIPT_Sora_Sompeng,
-    UNICODE_SCRIPT_Soyombo,
-    UNICODE_SCRIPT_Sundanese,
-    UNICODE_SCRIPT_Syloti_Nagri,
-    UNICODE_SCRIPT_Syriac,
-    UNICODE_SCRIPT_Tagalog,
-    UNICODE_SCRIPT_Tagbanwa,
-    UNICODE_SCRIPT_Tai_Le,
-    UNICODE_SCRIPT_Tai_Tham,
-    UNICODE_SCRIPT_Tai_Viet,
-    UNICODE_SCRIPT_Takri,
-    UNICODE_SCRIPT_Tamil,
-    UNICODE_SCRIPT_Tangut,
-    UNICODE_SCRIPT_Telugu,
-    UNICODE_SCRIPT_Thaana,
-    UNICODE_SCRIPT_Thai,
-    UNICODE_SCRIPT_Tibetan,
-    UNICODE_SCRIPT_Tifinagh,
-    UNICODE_SCRIPT_Tirhuta,
-    UNICODE_SCRIPT_Ugaritic,
-    UNICODE_SCRIPT_Vai,
-    UNICODE_SCRIPT_Wancho,
-    UNICODE_SCRIPT_Warang_Citi,
-    UNICODE_SCRIPT_Yi,
-    UNICODE_SCRIPT_Zanabazar_Square,
-    UNICODE_SCRIPT_COUNT,
-} UnicodeScriptEnum;
-
-static const char unicode_script_name_table[] =
-    "Adlam,Adlm"                  "\0"
-    "Ahom,Ahom"                   "\0"
-    "Anatolian_Hieroglyphs,Hluw"  "\0"
-    "Arabic,Arab"                 "\0"
-    "Armenian,Armn"               "\0"
-    "Avestan,Avst"                "\0"
-    "Balinese,Bali"               "\0"
-    "Bamum,Bamu"                  "\0"
-    "Bassa_Vah,Bass"              "\0"
-    "Batak,Batk"                  "\0"
-    "Bengali,Beng"                "\0"
-    "Bhaiksuki,Bhks"              "\0"
-    "Bopomofo,Bopo"               "\0"
-    "Brahmi,Brah"                 "\0"
-    "Braille,Brai"                "\0"
-    "Buginese,Bugi"               "\0"
-    "Buhid,Buhd"                  "\0"
-    "Canadian_Aboriginal,Cans"    "\0"
-    "Carian,Cari"                 "\0"
-    "Caucasian_Albanian,Aghb"     "\0"
-    "Chakma,Cakm"                 "\0"
-    "Cham,Cham"                   "\0"
-    "Cherokee,Cher"               "\0"
-    "Common,Zyyy"                 "\0"
-    "Coptic,Copt,Qaac"            "\0"
-    "Cuneiform,Xsux"              "\0"
-    "Cypriot,Cprt"                "\0"
-    "Cyrillic,Cyrl"               "\0"
-    "Deseret,Dsrt"                "\0"
-    "Devanagari,Deva"             "\0"
-    "Dogra,Dogr"                  "\0"
-    "Duployan,Dupl"               "\0"
-    "Egyptian_Hieroglyphs,Egyp"   "\0"
-    "Elbasan,Elba"                "\0"
-    "Elymaic,Elym"                "\0"
-    "Ethiopic,Ethi"               "\0"
-    "Georgian,Geor"               "\0"
-    "Glagolitic,Glag"             "\0"
-    "Gothic,Goth"                 "\0"
-    "Grantha,Gran"                "\0"
-    "Greek,Grek"                  "\0"
-    "Gujarati,Gujr"               "\0"
-    "Gunjala_Gondi,Gong"          "\0"
-    "Gurmukhi,Guru"               "\0"
-    "Han,Hani"                    "\0"
-    "Hangul,Hang"                 "\0"
-    "Hanifi_Rohingya,Rohg"        "\0"
-    "Hanunoo,Hano"                "\0"
-    "Hatran,Hatr"                 "\0"
-    "Hebrew,Hebr"                 "\0"
-    "Hiragana,Hira"               "\0"
-    "Imperial_Aramaic,Armi"       "\0"
-    "Inherited,Zinh,Qaai"         "\0"
-    "Inscriptional_Pahlavi,Phli"  "\0"
-    "Inscriptional_Parthian,Prti" "\0"
-    "Javanese,Java"               "\0"
-    "Kaithi,Kthi"                 "\0"
-    "Kannada,Knda"                "\0"
-    "Katakana,Kana"               "\0"
-    "Kayah_Li,Kali"               "\0"
-    "Kharoshthi,Khar"             "\0"
-    "Khmer,Khmr"                  "\0"
-    "Khojki,Khoj"                 "\0"
-    "Khudawadi,Sind"              "\0"
-    "Lao,Laoo"                    "\0"
-    "Latin,Latn"                  "\0"
-    "Lepcha,Lepc"                 "\0"
-    "Limbu,Limb"                  "\0"
-    "Linear_A,Lina"               "\0"
-    "Linear_B,Linb"               "\0"
-    "Lisu,Lisu"                   "\0"
-    "Lycian,Lyci"                 "\0"
-    "Lydian,Lydi"                 "\0"
-    "Makasar,Maka"                "\0"
-    "Mahajani,Mahj"               "\0"
-    "Malayalam,Mlym"              "\0"
-    "Mandaic,Mand"                "\0"
-    "Manichaean,Mani"             "\0"
-    "Marchen,Marc"                "\0"
-    "Masaram_Gondi,Gonm"          "\0"
-    "Medefaidrin,Medf"            "\0"
-    "Meetei_Mayek,Mtei"           "\0"
-    "Mende_Kikakui,Mend"          "\0"
-    "Meroitic_Cursive,Merc"       "\0"
-    "Meroitic_Hieroglyphs,Mero"   "\0"
-    "Miao,Plrd"                   "\0"
-    "Modi,Modi"                   "\0"
-    "Mongolian,Mong"              "\0"
-    "Mro,Mroo"                    "\0"
-    "Multani,Mult"                "\0"
-    "Myanmar,Mymr"                "\0"
-    "Nabataean,Nbat"              "\0"
-    "Nandinagari,Nand"            "\0"
-    "New_Tai_Lue,Talu"            "\0"
-    "Newa,Newa"                   "\0"
-    "Nko,Nkoo"                    "\0"
-    "Nushu,Nshu"                  "\0"
-    "Nyiakeng_Puachue_Hmong,Hmnp" "\0"
-    "Ogham,Ogam"                  "\0"
-    "Ol_Chiki,Olck"               "\0"
-    "Old_Hungarian,Hung"          "\0"
-    "Old_Italic,Ital"             "\0"
-    "Old_North_Arabian,Narb"      "\0"
-    "Old_Permic,Perm"             "\0"
-    "Old_Persian,Xpeo"            "\0"
-    "Old_Sogdian,Sogo"            "\0"
-    "Old_South_Arabian,Sarb"      "\0"
-    "Old_Turkic,Orkh"             "\0"
-    "Oriya,Orya"                  "\0"
-    "Osage,Osge"                  "\0"
-    "Osmanya,Osma"                "\0"
-    "Pahawh_Hmong,Hmng"           "\0"
-    "Palmyrene,Palm"              "\0"
-    "Pau_Cin_Hau,Pauc"            "\0"
-    "Phags_Pa,Phag"               "\0"
-    "Phoenician,Phnx"             "\0"
-    "Psalter_Pahlavi,Phlp"        "\0"
-    "Rejang,Rjng"                 "\0"
-    "Runic,Runr"                  "\0"
-    "Samaritan,Samr"              "\0"
-    "Saurashtra,Saur"             "\0"
-    "Sharada,Shrd"                "\0"
-    "Shavian,Shaw"                "\0"
-    "Siddham,Sidd"                "\0"
-    "SignWriting,Sgnw"            "\0"
-    "Sinhala,Sinh"                "\0"
-    "Sogdian,Sogd"                "\0"
-    "Sora_Sompeng,Sora"           "\0"
-    "Soyombo,Soyo"                "\0"
-    "Sundanese,Sund"              "\0"
-    "Syloti_Nagri,Sylo"           "\0"
-    "Syriac,Syrc"                 "\0"
-    "Tagalog,Tglg"                "\0"
-    "Tagbanwa,Tagb"               "\0"
-    "Tai_Le,Tale"                 "\0"
-    "Tai_Tham,Lana"               "\0"
-    "Tai_Viet,Tavt"               "\0"
-    "Takri,Takr"                  "\0"
-    "Tamil,Taml"                  "\0"
-    "Tangut,Tang"                 "\0"
-    "Telugu,Telu"                 "\0"
-    "Thaana,Thaa"                 "\0"
-    "Thai,Thai"                   "\0"
-    "Tibetan,Tibt"                "\0"
-    "Tifinagh,Tfng"               "\0"
-    "Tirhuta,Tirh"                "\0"
-    "Ugaritic,Ugar"               "\0"
-    "Vai,Vaii"                    "\0"
-    "Wancho,Wcho"                 "\0"
-    "Warang_Citi,Wara"            "\0"
-    "Yi,Yiii"                     "\0"
-    "Zanabazar_Square,Zanb"       "\0"
-;
-
-static const uint8_t unicode_script_table[2565] = {
-    0xc0, 0x18, 0x99, 0x42, 0x85, 0x18, 0x99, 0x42,
-    0xae, 0x18, 0x80, 0x42, 0x8e, 0x18, 0x80, 0x42,
-    0x84, 0x18, 0x96, 0x42, 0x80, 0x18, 0x9e, 0x42,
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-    0x96, 0x23, 0x08, 0xcd, 0x0e, 0x03, 0x9d, 0x0e,
-    0x0e, 0x80, 0x0e, 0xc1, 0x39, 0x0a, 0x80, 0x39,
-    0x01, 0x98, 0x80, 0x06, 0x89, 0x80, 0x05, 0xb4,
-    0x15, 0x00, 0x90, 0x15, 0x08, 0xa6, 0x4b, 0x08,
-    0xcd, 0x7a, 0x01, 0x8f, 0x7a, 0x00, 0x93, 0x7e,
-    0x0a, 0x91, 0x3f, 0x00, 0xab, 0x3f, 0x40, 0x86,
-    0x5a, 0x00, 0x80, 0x5a, 0x00, 0x83, 0x5a, 0x00,
-    0x8e, 0x5a, 0x00, 0x8a, 0x5a, 0x05, 0xba, 0x40,
-    0x04, 0x89, 0x40, 0x05, 0x83, 0x28, 0x00, 0x87,
-    0x28, 0x01, 0x81, 0x28, 0x01, 0x95, 0x28, 0x00,
-    0x86, 0x28, 0x00, 0x81, 0x28, 0x00, 0x84, 0x28,
-    0x00, 0x80, 0x35, 0x88, 0x28, 0x01, 0x81, 0x28,
-    0x01, 0x82, 0x28, 0x01, 0x80, 0x28, 0x05, 0x80,
-    0x28, 0x04, 0x86, 0x28, 0x01, 0x86, 0x28, 0x02,
-    0x84, 0x28, 0x60, 0x2a, 0xd9, 0x5f, 0x00, 0x80,
-    0x5f, 0x00, 0x82, 0x5f, 0x1f, 0xc7, 0x92, 0x07,
-    0x89, 0x92, 0x60, 0x45, 0xb5, 0x7c, 0x01, 0xa5,
-    0x7c, 0x21, 0xc4, 0x57, 0x0a, 0x89, 0x57, 0x05,
-    0x8c, 0x58, 0x12, 0xb8, 0x8a, 0x06, 0x89, 0x8a,
-    0x35, 0x9a, 0x02, 0x01, 0x8e, 0x02, 0x03, 0x8f,
-    0x02, 0x60, 0x5f, 0xbb, 0x1f, 0x60, 0x03, 0xd2,
-    0x96, 0x0b, 0x80, 0x96, 0x60, 0x3f, 0x87, 0x5d,
-    0x01, 0xad, 0x5d, 0x01, 0x8a, 0x5d, 0x1a, 0xc7,
-    0x98, 0x07, 0xd2, 0x81, 0x1c, 0xb8, 0x72, 0x60,
-    0xa6, 0x88, 0x0c, 0x00, 0xac, 0x0c, 0x00, 0x8d,
-    0x0c, 0x09, 0x9c, 0x0c, 0x02, 0x9f, 0x4f, 0x01,
-    0x95, 0x4f, 0x00, 0x8d, 0x4f, 0x48, 0x86, 0x50,
-    0x00, 0x81, 0x50, 0x00, 0xab, 0x50, 0x02, 0x80,
-    0x50, 0x00, 0x81, 0x50, 0x00, 0x88, 0x50, 0x07,
-    0x89, 0x50, 0x05, 0x85, 0x2b, 0x00, 0x81, 0x2b,
-    0x00, 0xa4, 0x2b, 0x00, 0x81, 0x2b, 0x00, 0x85,
-    0x2b, 0x06, 0x89, 0x2b, 0x60, 0xd5, 0x98, 0x4a,
-    0x60, 0x66, 0xb1, 0x8b, 0x0c, 0x80, 0x8b, 0xe3,
-    0x39, 0x1a, 0x60, 0x05, 0xe0, 0x0e, 0x1a, 0x00,
-    0x84, 0x1a, 0x0a, 0xe0, 0x63, 0x1a, 0x6a, 0x5b,
-    0xe3, 0xce, 0x21, 0x00, 0x88, 0x21, 0x6f, 0x66,
-    0xe1, 0xe6, 0x03, 0x70, 0x11, 0x58, 0xe1, 0xd8,
-    0x08, 0x06, 0x9e, 0x59, 0x00, 0x89, 0x59, 0x03,
-    0x81, 0x59, 0x5f, 0x9d, 0x09, 0x01, 0x85, 0x09,
-    0x09, 0xc5, 0x70, 0x09, 0x89, 0x70, 0x00, 0x86,
-    0x70, 0x00, 0x94, 0x70, 0x04, 0x92, 0x70, 0x62,
-    0x4f, 0xda, 0x51, 0x60, 0x04, 0xca, 0x56, 0x03,
-    0xb8, 0x56, 0x06, 0x90, 0x56, 0x3f, 0x80, 0x8c,
-    0x80, 0x61, 0x81, 0x18, 0x1b, 0xf0, 0x07, 0x97,
-    0x8c, 0x07, 0xe2, 0x92, 0x8c, 0x70, 0x14, 0xac,
-    0x80, 0x3b, 0xe0, 0xbd, 0x33, 0x30, 0x82, 0x33,
-    0x10, 0x83, 0x3b, 0x07, 0xe1, 0x2b, 0x61, 0x68,
-    0xa3, 0xe0, 0x0a, 0x20, 0x04, 0x8c, 0x20, 0x02,
-    0x88, 0x20, 0x06, 0x89, 0x20, 0x01, 0x83, 0x20,
-    0x83, 0x18, 0x70, 0x02, 0xfb, 0xe0, 0x95, 0x18,
-    0x09, 0xa6, 0x18, 0x01, 0xbd, 0x18, 0x82, 0x35,
-    0x90, 0x18, 0x87, 0x35, 0x81, 0x18, 0x86, 0x35,
-    0x9d, 0x18, 0x83, 0x35, 0xba, 0x18, 0x16, 0xc5,
-    0x29, 0x60, 0x39, 0x93, 0x18, 0x0b, 0xd6, 0x18,
-    0x08, 0x98, 0x18, 0x60, 0x26, 0xd4, 0x18, 0x00,
-    0xc6, 0x18, 0x00, 0x81, 0x18, 0x01, 0x80, 0x18,
-    0x01, 0x81, 0x18, 0x01, 0x83, 0x18, 0x00, 0x8b,
-    0x18, 0x00, 0x80, 0x18, 0x00, 0x86, 0x18, 0x00,
-    0xc0, 0x18, 0x00, 0x83, 0x18, 0x01, 0x87, 0x18,
-    0x00, 0x86, 0x18, 0x00, 0x9b, 0x18, 0x00, 0x83,
-    0x18, 0x00, 0x84, 0x18, 0x00, 0x80, 0x18, 0x02,
-    0x86, 0x18, 0x00, 0xe0, 0xf3, 0x18, 0x01, 0xe0,
-    0xc3, 0x18, 0x01, 0xb1, 0x18, 0xe2, 0x2b, 0x7d,
-    0x0e, 0x84, 0x7d, 0x00, 0x8e, 0x7d, 0x64, 0xef,
-    0x86, 0x26, 0x00, 0x90, 0x26, 0x01, 0x86, 0x26,
-    0x00, 0x81, 0x26, 0x00, 0x84, 0x26, 0x60, 0x74,
-    0xac, 0x62, 0x02, 0x8d, 0x62, 0x01, 0x89, 0x62,
-    0x03, 0x81, 0x62, 0x61, 0x0f, 0xb9, 0x95, 0x04,
-    0x80, 0x95, 0x64, 0x9f, 0xe0, 0x64, 0x53, 0x01,
-    0x8f, 0x53, 0x28, 0xcb, 0x01, 0x03, 0x89, 0x01,
-    0x03, 0x81, 0x01, 0x62, 0xb0, 0xc3, 0x18, 0x4b,
-    0xbc, 0x18, 0x60, 0x61, 0x83, 0x04, 0x00, 0x9a,
-    0x04, 0x00, 0x81, 0x04, 0x00, 0x80, 0x04, 0x01,
-    0x80, 0x04, 0x00, 0x89, 0x04, 0x00, 0x83, 0x04,
-    0x00, 0x80, 0x04, 0x00, 0x80, 0x04, 0x05, 0x80,
-    0x04, 0x03, 0x80, 0x04, 0x00, 0x80, 0x04, 0x00,
-    0x80, 0x04, 0x00, 0x82, 0x04, 0x00, 0x81, 0x04,
-    0x00, 0x80, 0x04, 0x01, 0x80, 0x04, 0x00, 0x80,
-    0x04, 0x00, 0x80, 0x04, 0x00, 0x80, 0x04, 0x00,
-    0x80, 0x04, 0x00, 0x81, 0x04, 0x00, 0x80, 0x04,
-    0x01, 0x83, 0x04, 0x00, 0x86, 0x04, 0x00, 0x83,
-    0x04, 0x00, 0x83, 0x04, 0x00, 0x80, 0x04, 0x00,
-    0x89, 0x04, 0x00, 0x90, 0x04, 0x04, 0x82, 0x04,
-    0x00, 0x84, 0x04, 0x00, 0x90, 0x04, 0x33, 0x81,
-    0x04, 0x60, 0xad, 0xab, 0x18, 0x03, 0xe0, 0x03,
-    0x18, 0x0b, 0x8e, 0x18, 0x01, 0x8e, 0x18, 0x00,
-    0x8e, 0x18, 0x00, 0xa4, 0x18, 0x09, 0x8c, 0x18,
-    0x02, 0xdc, 0x18, 0x02, 0xbc, 0x18, 0x38, 0x99,
-    0x18, 0x80, 0x33, 0x81, 0x18, 0x0c, 0xab, 0x18,
-    0x03, 0x88, 0x18, 0x06, 0x81, 0x18, 0x0d, 0x85,
-    0x18, 0x60, 0x39, 0xe3, 0x75, 0x18, 0x09, 0x8c,
-    0x18, 0x02, 0x8a, 0x18, 0x04, 0xe0, 0x13, 0x18,
-    0x0b, 0xd8, 0x18, 0x06, 0x8b, 0x18, 0x13, 0x8b,
-    0x18, 0x03, 0xb7, 0x18, 0x07, 0x89, 0x18, 0x05,
-    0xa7, 0x18, 0x07, 0x9d, 0x18, 0x51, 0x8b, 0x18,
-    0x00, 0xe0, 0x04, 0x18, 0x00, 0x83, 0x18, 0x02,
-    0xa8, 0x18, 0x01, 0x85, 0x18, 0x02, 0x9c, 0x18,
-    0x01, 0xe0, 0x26, 0x18, 0x0b, 0x8d, 0x18, 0x01,
-    0x83, 0x18, 0x03, 0x82, 0x18, 0x04, 0x82, 0x18,
-    0x0c, 0x85, 0x18, 0x65, 0x09, 0xf0, 0x96, 0x76,
-    0x2d, 0x28, 0xef, 0xd4, 0x2d, 0x0a, 0xe0, 0x7d,
-    0x2d, 0x01, 0xf0, 0x06, 0x21, 0x2d, 0x0d, 0xf0,
-    0x0c, 0xd0, 0x2d, 0x6b, 0xbe, 0xe1, 0xbd, 0x2d,
-    0x7a, 0xf5, 0x82, 0x80, 0x18, 0x1d, 0xdf, 0x18,
-    0x60, 0x1f, 0xe0, 0x8f, 0x35,
-};
-
-static const uint8_t unicode_script_ext_table[789] = {
-    0x82, 0xc1, 0x00, 0x00, 0x01, 0x29, 0x01, 0x00,
-    0x00, 0x01, 0x29, 0x1c, 0x00, 0x0c, 0x01, 0x42,
-    0x80, 0x92, 0x00, 0x00, 0x02, 0x1c, 0x68, 0x00,
-    0x02, 0x1c, 0x26, 0x01, 0x02, 0x1c, 0x42, 0x00,
-    0x02, 0x1c, 0x26, 0x80, 0x80, 0x00, 0x00, 0x02,
-    0x05, 0x25, 0x80, 0x01, 0x00, 0x00, 0x04, 0x04,
-    0x2f, 0x84, 0x8e, 0x0d, 0x00, 0x00, 0x04, 0x04,
-    0x2f, 0x84, 0x8e, 0x00, 0x03, 0x04, 0x84, 0x8e,
-    0x01, 0x00, 0x00, 0x04, 0x04, 0x2f, 0x84, 0x8e,
-    0x1f, 0x00, 0x00, 0x08, 0x01, 0x04, 0x4d, 0x4e,
-    0x75, 0x2f, 0x7f, 0x84, 0x09, 0x00, 0x0a, 0x02,
-    0x04, 0x84, 0x09, 0x00, 0x09, 0x02, 0x04, 0x8e,
-    0x05, 0x00, 0x00, 0x02, 0x04, 0x84, 0x62, 0x00,
-    0x00, 0x02, 0x04, 0x2f, 0x81, 0xfb, 0x00, 0x00,
-    0x0d, 0x0b, 0x1e, 0x28, 0x2a, 0x2c, 0x3a, 0x42,
-    0x4c, 0x6d, 0x7a, 0x8b, 0x8d, 0x92, 0x00, 0x0c,
-    0x0b, 0x1e, 0x28, 0x2a, 0x2c, 0x3a, 0x42, 0x4c,
-    0x6d, 0x8b, 0x8d, 0x92, 0x10, 0x00, 0x00, 0x14,
-    0x0b, 0x1e, 0x1f, 0x2b, 0x50, 0x28, 0x2a, 0x2c,
-    0x3a, 0x4b, 0x4c, 0x5d, 0x6d, 0x40, 0x7e, 0x83,
-    0x8a, 0x8b, 0x8d, 0x92, 0x00, 0x15, 0x0b, 0x1e,
-    0x1f, 0x2b, 0x50, 0x28, 0x2a, 0x2c, 0x3a, 0x44,
-    0x4b, 0x4c, 0x5d, 0x6d, 0x40, 0x7e, 0x83, 0x8a,
-    0x8b, 0x8d, 0x92, 0x09, 0x04, 0x1e, 0x1f, 0x39,
-    0x4b, 0x75, 0x00, 0x09, 0x03, 0x0b, 0x15, 0x83,
-    0x75, 0x00, 0x09, 0x02, 0x2c, 0x5a, 0x75, 0x00,
-    0x09, 0x02, 0x2a, 0x3f, 0x80, 0x75, 0x00, 0x0d,
-    0x02, 0x28, 0x8b, 0x80, 0x71, 0x00, 0x09, 0x02,
-    0x3a, 0x5d, 0x82, 0xcf, 0x00, 0x09, 0x03, 0x15,
-    0x5b, 0x87, 0x80, 0x30, 0x00, 0x00, 0x02, 0x25,
-    0x42, 0x85, 0xb8, 0x00, 0x01, 0x04, 0x11, 0x30,
-    0x86, 0x85, 0x80, 0x4a, 0x00, 0x01, 0x02, 0x58,
-    0x73, 0x00, 0x00, 0x00, 0x02, 0x58, 0x73, 0x84,
-    0x49, 0x00, 0x00, 0x04, 0x0b, 0x1e, 0x28, 0x3a,
-    0x00, 0x01, 0x1e, 0x00, 0x04, 0x0b, 0x1e, 0x28,
-    0x3a, 0x00, 0x02, 0x1e, 0x28, 0x00, 0x01, 0x1e,
-    0x01, 0x02, 0x0b, 0x1e, 0x00, 0x02, 0x1e, 0x7a,
-    0x00, 0x02, 0x0b, 0x1e, 0x00, 0x02, 0x1e, 0x7a,
-    0x00, 0x06, 0x1e, 0x3a, 0x4c, 0x6d, 0x8b, 0x8d,
-    0x00, 0x01, 0x1e, 0x01, 0x02, 0x1e, 0x7a, 0x01,
-    0x01, 0x1e, 0x00, 0x02, 0x1e, 0x7a, 0x00, 0x02,
-    0x0b, 0x1e, 0x06, 0x01, 0x1e, 0x00, 0x02, 0x1e,
-    0x5d, 0x00, 0x02, 0x0b, 0x1e, 0x01, 0x01, 0x1e,
-    0x00, 0x02, 0x0b, 0x1e, 0x03, 0x01, 0x1e, 0x00,
-    0x08, 0x0b, 0x1e, 0x28, 0x3a, 0x5d, 0x6d, 0x8d,
-    0x92, 0x00, 0x02, 0x1e, 0x28, 0x00, 0x03, 0x1e,
-    0x28, 0x3a, 0x01, 0x02, 0x0b, 0x1e, 0x00, 0x01,
-    0x0b, 0x01, 0x02, 0x1e, 0x28, 0x00, 0x01, 0x5d,
-    0x80, 0x44, 0x00, 0x01, 0x01, 0x29, 0x81, 0xec,
-    0x00, 0x00, 0x02, 0x42, 0x58, 0x80, 0x3f, 0x00,
-    0x00, 0x03, 0x1e, 0x28, 0x42, 0x8c, 0xd1, 0x00,
-    0x00, 0x02, 0x1c, 0x26, 0x81, 0x3c, 0x00, 0x01,
-    0x06, 0x0d, 0x2e, 0x2d, 0x33, 0x3b, 0x97, 0x00,
-    0x05, 0x0d, 0x2e, 0x2d, 0x33, 0x3b, 0x01, 0x00,
-    0x00, 0x01, 0x2d, 0x00, 0x00, 0x09, 0x06, 0x0d,
-    0x2e, 0x2d, 0x33, 0x3b, 0x97, 0x00, 0x00, 0x00,
-    0x05, 0x0d, 0x2e, 0x2d, 0x33, 0x3b, 0x07, 0x06,
-    0x0d, 0x2e, 0x2d, 0x33, 0x3b, 0x97, 0x03, 0x05,
-    0x0d, 0x2e, 0x2d, 0x33, 0x3b, 0x09, 0x00, 0x03,
-    0x02, 0x0d, 0x2d, 0x01, 0x00, 0x00, 0x05, 0x0d,
-    0x2e, 0x2d, 0x33, 0x3b, 0x04, 0x02, 0x33, 0x3b,
-    0x00, 0x00, 0x00, 0x05, 0x0d, 0x2e, 0x2d, 0x33,
-    0x3b, 0x03, 0x00, 0x01, 0x03, 0x2d, 0x33, 0x3b,
-    0x01, 0x01, 0x2d, 0x58, 0x00, 0x03, 0x02, 0x33,
-    0x3b, 0x02, 0x00, 0x00, 0x02, 0x33, 0x3b, 0x59,
-    0x00, 0x00, 0x06, 0x0d, 0x2e, 0x2d, 0x33, 0x3b,
-    0x97, 0x00, 0x02, 0x33, 0x3b, 0x80, 0x12, 0x00,
-    0x0f, 0x01, 0x2d, 0x1f, 0x00, 0x23, 0x01, 0x2d,
-    0x3b, 0x00, 0x27, 0x01, 0x2d, 0x37, 0x00, 0x30,
-    0x01, 0x2d, 0x0e, 0x00, 0x0b, 0x01, 0x2d, 0x32,
-    0x00, 0x00, 0x01, 0x2d, 0x57, 0x00, 0x18, 0x01,
-    0x2d, 0x09, 0x00, 0x04, 0x01, 0x2d, 0x5f, 0x00,
-    0x1e, 0x01, 0x2d, 0xc0, 0x31, 0xef, 0x00, 0x00,
-    0x02, 0x1c, 0x26, 0x81, 0x3f, 0x00, 0x02, 0x0e,
-    0x1e, 0x1f, 0x2a, 0x2c, 0x3f, 0x3a, 0x39, 0x4b,
-    0x4c, 0x57, 0x5d, 0x40, 0x8a, 0x92, 0x02, 0x0d,
-    0x1e, 0x1f, 0x2a, 0x2c, 0x3f, 0x3a, 0x39, 0x4b,
-    0x57, 0x5d, 0x40, 0x8a, 0x92, 0x03, 0x0b, 0x1e,
-    0x1f, 0x2a, 0x2c, 0x3f, 0x39, 0x4b, 0x57, 0x40,
-    0x8a, 0x92, 0x80, 0x36, 0x00, 0x00, 0x02, 0x0b,
-    0x1e, 0x00, 0x00, 0x00, 0x02, 0x1e, 0x8b, 0x39,
-    0x00, 0x00, 0x03, 0x3c, 0x42, 0x5b, 0x80, 0x1f,
-    0x00, 0x00, 0x02, 0x10, 0x38, 0xc0, 0x13, 0xa1,
-    0x00, 0x00, 0x02, 0x04, 0x8e, 0x09, 0x00, 0x00,
-    0x02, 0x04, 0x8e, 0x46, 0x00, 0x01, 0x05, 0x0d,
-    0x2e, 0x2d, 0x33, 0x3b, 0x80, 0x99, 0x00, 0x04,
-    0x06, 0x0d, 0x2e, 0x2d, 0x33, 0x3b, 0x97, 0x09,
-    0x00, 0x00, 0x02, 0x33, 0x3b, 0x2c, 0x00, 0x01,
-    0x02, 0x33, 0x3b, 0x80, 0xdf, 0x00, 0x02, 0x02,
-    0x1b, 0x46, 0x03, 0x00, 0x2c, 0x03, 0x1b, 0x45,
-    0x46, 0x02, 0x00, 0x08, 0x02, 0x1b, 0x46, 0x81,
-    0x1f, 0x00, 0x1b, 0x02, 0x04, 0x19, 0x8f, 0x84,
-    0x00, 0x00, 0x02, 0x28, 0x8b, 0x00, 0x00, 0x00,
-    0x02, 0x28, 0x8b, 0x36, 0x00, 0x01, 0x02, 0x28,
-    0x8b, 0x8c, 0x12, 0x00, 0x01, 0x02, 0x28, 0x8b,
-    0x00, 0x00, 0x00, 0x02, 0x28, 0x8b, 0xc0, 0x5c,
-    0x4b, 0x00, 0x03, 0x01, 0x20, 0x96, 0x3b, 0x00,
-    0x11, 0x01, 0x2d, 0x9e, 0x5d, 0x00, 0x01, 0x01,
-    0x2d, 0xce, 0xcd, 0x2d, 0x00,
-};
-
-static const uint8_t unicode_prop_Hyphen_table[28] = {
-    0xac, 0x80, 0xfe, 0x80, 0x44, 0xdb, 0x80, 0x52,
-    0x7a, 0x80, 0x48, 0x08, 0x81, 0x4e, 0x04, 0x80,
-    0x42, 0xe2, 0x80, 0x60, 0xcd, 0x66, 0x80, 0x40,
-    0xa8, 0x80, 0xd6, 0x80,
-};
-
-static const uint8_t unicode_prop_Other_Math_table[200] = {
-    0xdd, 0x80, 0x43, 0x70, 0x11, 0x80, 0x99, 0x09,
-    0x81, 0x5c, 0x1f, 0x80, 0x9a, 0x82, 0x8a, 0x80,
-    0x9f, 0x83, 0x97, 0x81, 0x8d, 0x81, 0xc0, 0x8c,
-    0x18, 0x11, 0x1c, 0x91, 0x03, 0x01, 0x89, 0x00,
-    0x14, 0x28, 0x11, 0x09, 0x02, 0x05, 0x13, 0x24,
-    0xca, 0x21, 0x18, 0x08, 0x08, 0x00, 0x21, 0x0b,
-    0x0b, 0x91, 0x09, 0x00, 0x06, 0x00, 0x29, 0x41,
-    0x21, 0x83, 0x40, 0xa7, 0x08, 0x80, 0x97, 0x80,
-    0x90, 0x80, 0x41, 0xbc, 0x81, 0x8b, 0x88, 0x24,
-    0x21, 0x09, 0x14, 0x8d, 0x00, 0x01, 0x85, 0x97,
-    0x81, 0xb8, 0x00, 0x80, 0x9c, 0x83, 0x88, 0x81,
-    0x41, 0x55, 0x81, 0x9e, 0x89, 0x41, 0x92, 0x95,
-    0xbe, 0x83, 0x9f, 0x81, 0x60, 0xd4, 0x62, 0x00,
-    0x03, 0x80, 0x40, 0xd2, 0x00, 0x80, 0x60, 0xd4,
-    0xc0, 0xd4, 0x80, 0xc6, 0x01, 0x08, 0x09, 0x0b,
-    0x80, 0x8b, 0x00, 0x06, 0x80, 0xc0, 0x03, 0x0f,
-    0x06, 0x80, 0x9b, 0x03, 0x04, 0x00, 0x16, 0x80,
-    0x41, 0x53, 0x81, 0x98, 0x80, 0x98, 0x80, 0x9e,
-    0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e,
-    0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x07, 0x81,
-    0xb1, 0x55, 0xff, 0x18, 0x9a, 0x01, 0x00, 0x08,
-    0x80, 0x89, 0x03, 0x00, 0x00, 0x28, 0x18, 0x00,
-    0x00, 0x02, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00,
-    0x00, 0x01, 0x00, 0x0b, 0x06, 0x03, 0x03, 0x00,
-    0x80, 0x89, 0x80, 0x90, 0x22, 0x04, 0x80, 0x90,
-};
-
-static const uint8_t unicode_prop_Other_Alphabetic_table[396] = {
-    0x43, 0x44, 0x80, 0x42, 0x69, 0x8d, 0x00, 0x01,
-    0x01, 0x00, 0xc7, 0x8a, 0xaf, 0x8c, 0x06, 0x8f,
-    0x80, 0xe4, 0x33, 0x19, 0x0b, 0x80, 0xa2, 0x80,
-    0x9d, 0x8f, 0xe5, 0x8a, 0xe4, 0x0a, 0x88, 0x02,
-    0x03, 0x40, 0xa6, 0x8b, 0x16, 0x85, 0x93, 0xb5,
-    0x09, 0x8e, 0x01, 0x22, 0x89, 0x81, 0x9c, 0x82,
-    0xb9, 0x31, 0x09, 0x81, 0x89, 0x80, 0x89, 0x81,
-    0x9c, 0x82, 0xb9, 0x23, 0x09, 0x0b, 0x80, 0x9d,
-    0x0a, 0x80, 0x8a, 0x82, 0xb9, 0x38, 0x10, 0x81,
-    0x94, 0x81, 0x95, 0x13, 0x82, 0xb9, 0x31, 0x09,
-    0x81, 0x88, 0x81, 0x89, 0x81, 0x9d, 0x80, 0xba,
-    0x22, 0x10, 0x82, 0x89, 0x80, 0xa7, 0x83, 0xb9,
-    0x30, 0x10, 0x17, 0x81, 0x8a, 0x81, 0x9c, 0x82,
-    0xb9, 0x30, 0x10, 0x17, 0x81, 0x8a, 0x81, 0x9b,
-    0x83, 0xb9, 0x30, 0x10, 0x82, 0x89, 0x80, 0x89,
-    0x81, 0x9d, 0x81, 0xca, 0x28, 0x00, 0x87, 0x91,
-    0x81, 0xbc, 0x01, 0x86, 0x91, 0x80, 0xe2, 0x01,
-    0x28, 0x81, 0x8f, 0x80, 0x40, 0xa2, 0x90, 0x8a,
-    0x8a, 0x80, 0xa3, 0xed, 0x8b, 0x00, 0x0b, 0x96,
-    0x1b, 0x10, 0x11, 0x32, 0x83, 0x8c, 0x8b, 0x00,
-    0x89, 0x83, 0x46, 0x73, 0x81, 0x9d, 0x81, 0x9d,
-    0x81, 0x9d, 0x81, 0xc1, 0x92, 0x40, 0xbb, 0x81,
-    0xa1, 0x80, 0xf5, 0x8b, 0x83, 0x88, 0x40, 0xdd,
-    0x84, 0xb8, 0x89, 0x81, 0x93, 0x40, 0x8a, 0x84,
-    0xaf, 0x8e, 0xbb, 0x82, 0x9d, 0x88, 0x09, 0xb8,
-    0x8a, 0xb1, 0x92, 0x41, 0xaf, 0x8d, 0x46, 0xc0,
-    0xb3, 0x48, 0xf5, 0x9f, 0x60, 0x78, 0x73, 0x87,
-    0xa1, 0x81, 0x41, 0x61, 0x07, 0x80, 0x96, 0x84,
-    0xd7, 0x81, 0xb1, 0x8f, 0x00, 0xb8, 0x80, 0xa5,
-    0x84, 0x9b, 0x8b, 0xac, 0x83, 0xaf, 0x8b, 0xa4,
-    0x80, 0xc2, 0x8d, 0x8b, 0x07, 0x81, 0xac, 0x82,
-    0xb1, 0x00, 0x11, 0x0c, 0x80, 0xab, 0x24, 0x80,
-    0x40, 0xec, 0x87, 0x60, 0x4f, 0x32, 0x80, 0x48,
-    0x56, 0x84, 0x46, 0x85, 0x10, 0x0c, 0x83, 0x43,
-    0x13, 0x83, 0x42, 0xd7, 0x82, 0xb4, 0x8d, 0xbb,
-    0x80, 0xac, 0x88, 0xc6, 0x82, 0xa3, 0x8b, 0x91,
-    0x81, 0xb8, 0x82, 0xaf, 0x8c, 0xeb, 0x88, 0x08,
-    0x28, 0x40, 0x9f, 0x89, 0x96, 0x83, 0xb9, 0x31,
-    0x09, 0x81, 0x89, 0x80, 0x89, 0x81, 0x40, 0xd0,
-    0x8c, 0x02, 0xe9, 0x91, 0x40, 0xec, 0x31, 0x86,
-    0x9c, 0x81, 0xd1, 0x8e, 0x00, 0xe9, 0x8a, 0xe6,
-    0x8d, 0x41, 0x00, 0x8c, 0x41, 0x97, 0x31, 0x2b,
-    0x80, 0x9b, 0x89, 0xa9, 0x20, 0x83, 0x91, 0x8a,
-    0xad, 0x8d, 0x41, 0x96, 0x38, 0x86, 0xd2, 0x95,
-    0x80, 0x8d, 0xf9, 0x2a, 0x00, 0x08, 0x10, 0x02,
-    0x80, 0xc1, 0x20, 0x08, 0x83, 0x41, 0x5b, 0x83,
-    0x60, 0x50, 0x57, 0x00, 0xb6, 0x33, 0x60, 0x4d,
-    0x0a, 0x80, 0x60, 0x23, 0x60, 0x30, 0x90, 0x0e,
-    0x01, 0x04, 0x49, 0x1b, 0x80, 0x47, 0xe7, 0x99,
-    0x85, 0x99, 0x85, 0x99,
-};
-
-static const uint8_t unicode_prop_Other_Lowercase_table[51] = {
-    0x40, 0xa9, 0x80, 0x8e, 0x80, 0x41, 0xf4, 0x88,
-    0x31, 0x9d, 0x84, 0xdf, 0x80, 0xb3, 0x80, 0x59,
-    0xb0, 0xbe, 0x8c, 0x80, 0xa1, 0xa4, 0x42, 0xb0,
-    0x80, 0x8c, 0x80, 0x8f, 0x8c, 0x40, 0xd2, 0x8f,
-    0x43, 0x4f, 0x99, 0x47, 0x91, 0x81, 0x60, 0x7a,
-    0x1d, 0x81, 0x40, 0xd1, 0x80, 0x40, 0x86, 0x81,
-    0x43, 0x61, 0x83,
-};
-
-static const uint8_t unicode_prop_Other_Uppercase_table[15] = {
-    0x60, 0x21, 0x5f, 0x8f, 0x43, 0x45, 0x99, 0x61,
-    0xcc, 0x5f, 0x99, 0x85, 0x99, 0x85, 0x99,
-};
-
-static const uint8_t unicode_prop_Other_Grapheme_Extend_table[62] = {
-    0x49, 0xbd, 0x80, 0x97, 0x80, 0x41, 0x65, 0x80,
-    0x97, 0x80, 0xe5, 0x80, 0x97, 0x80, 0x40, 0xe9,
-    0x80, 0x91, 0x81, 0xe6, 0x80, 0x97, 0x80, 0xf6,
-    0x80, 0x8e, 0x80, 0x4d, 0x54, 0x80, 0x44, 0xd5,
-    0x80, 0x50, 0x20, 0x81, 0x60, 0xcf, 0x6d, 0x81,
-    0x53, 0x9d, 0x80, 0x97, 0x80, 0x41, 0x57, 0x80,
-    0x8b, 0x80, 0x40, 0xf0, 0x80, 0x60, 0xbb, 0xb4,
-    0x07, 0x84, 0x6c, 0x2e, 0xac, 0xdf,
-};
-
-static const uint8_t unicode_prop_Other_Default_Ignorable_Code_Point_table[32] = {
-    0x43, 0x4e, 0x80, 0x4e, 0x0e, 0x81, 0x46, 0x52,
-    0x81, 0x48, 0xae, 0x80, 0x50, 0xfd, 0x80, 0x60,
-    0xce, 0x3a, 0x80, 0xce, 0x88, 0x6d, 0x00, 0x06,
-    0x00, 0x9d, 0xdf, 0xff, 0x40, 0xef, 0x4e, 0x0f,
-};
-
-static const uint8_t unicode_prop_Other_ID_Start_table[11] = {
-    0x58, 0x84, 0x81, 0x48, 0x90, 0x80, 0x94, 0x80,
-    0x4f, 0x6b, 0x81,
-};
-
-static const uint8_t unicode_prop_Other_ID_Continue_table[12] = {
-    0x40, 0xb6, 0x80, 0x42, 0xce, 0x80, 0x4f, 0xe0,
-    0x88, 0x46, 0x67, 0x80,
-};
-
-static const uint8_t unicode_prop_Prepended_Concatenation_Mark_table[17] = {
-    0x45, 0xff, 0x85, 0x40, 0xd6, 0x80, 0xb0, 0x80,
-    0x41, 0xd1, 0x80, 0x61, 0x07, 0xd9, 0x80, 0x8e,
-    0x80,
-};
-
-static const uint8_t unicode_prop_XID_Start1_table[31] = {
-    0x43, 0x79, 0x80, 0x4a, 0xb7, 0x80, 0xfe, 0x80,
-    0x60, 0x21, 0xe6, 0x81, 0x60, 0xcb, 0xc0, 0x85,
-    0x41, 0x95, 0x81, 0xf3, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x80, 0x41, 0x1e, 0x81,
-};
-
-static const uint8_t unicode_prop_XID_Continue1_table[23] = {
-    0x43, 0x79, 0x80, 0x60, 0x2d, 0x1f, 0x81, 0x60,
-    0xcb, 0xc0, 0x85, 0x41, 0x95, 0x81, 0xf3, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
-};
-
-static const uint8_t unicode_prop_Changes_When_Titlecased1_table[22] = {
-    0x41, 0xc3, 0x08, 0x08, 0x81, 0xa4, 0x81, 0x4e,
-    0xdc, 0xaa, 0x0a, 0x4e, 0x87, 0x3f, 0x3f, 0x87,
-    0x8b, 0x80, 0x8e, 0x80, 0xae, 0x80,
-};
-
-static const uint8_t unicode_prop_Changes_When_Casefolded1_table[33] = {
-    0x40, 0xde, 0x80, 0xcf, 0x80, 0x97, 0x80, 0x44,
-    0x3c, 0x80, 0x59, 0x11, 0x80, 0x40, 0xe4, 0x3f,
-    0x3f, 0x87, 0x89, 0x11, 0x05, 0x02, 0x11, 0x80,
-    0xa9, 0x11, 0x80, 0x60, 0xdb, 0x07, 0x86, 0x8b,
-    0x84,
-};
-
-static const uint8_t unicode_prop_Changes_When_NFKC_Casefolded1_table[436] = {
-    0x40, 0x9f, 0x06, 0x00, 0x01, 0x00, 0x01, 0x12,
-    0x10, 0x82, 0x9f, 0x80, 0xcf, 0x01, 0x80, 0x8b,
-    0x07, 0x80, 0xfb, 0x01, 0x01, 0x80, 0xa5, 0x80,
-    0x40, 0xbb, 0x88, 0x9e, 0x29, 0x84, 0xda, 0x08,
-    0x81, 0x89, 0x80, 0xa3, 0x04, 0x02, 0x04, 0x08,
-    0x80, 0xc9, 0x82, 0x9c, 0x80, 0x41, 0x93, 0x80,
-    0x40, 0x93, 0x80, 0xd7, 0x83, 0x42, 0xde, 0x87,
-    0xfb, 0x08, 0x80, 0xd2, 0x01, 0x80, 0xa1, 0x11,
-    0x80, 0x40, 0xfc, 0x81, 0x42, 0xd4, 0x80, 0xfe,
-    0x80, 0xa7, 0x81, 0xad, 0x80, 0xb5, 0x80, 0x88,
-    0x03, 0x03, 0x03, 0x80, 0x8b, 0x80, 0x88, 0x00,
-    0x26, 0x80, 0x90, 0x80, 0x88, 0x03, 0x03, 0x03,
-    0x80, 0x8b, 0x80, 0x41, 0x41, 0x80, 0xe1, 0x81,
-    0x46, 0x52, 0x81, 0xd4, 0x83, 0x45, 0x1c, 0x10,
-    0x8a, 0x80, 0x91, 0x80, 0x9b, 0x8c, 0x80, 0xa1,
-    0xa4, 0x40, 0xd9, 0x80, 0x40, 0xd5, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x01, 0x3f, 0x3f, 0x87,
-    0x89, 0x11, 0x04, 0x00, 0x29, 0x04, 0x12, 0x80,
-    0x88, 0x12, 0x80, 0x88, 0x11, 0x11, 0x04, 0x08,
-    0x8f, 0x00, 0x20, 0x8b, 0x12, 0x2a, 0x08, 0x0b,
-    0x00, 0x07, 0x82, 0x8c, 0x06, 0x92, 0x81, 0x9a,
-    0x80, 0x8c, 0x8a, 0x80, 0xd6, 0x18, 0x10, 0x8a,
-    0x01, 0x0c, 0x0a, 0x00, 0x10, 0x11, 0x02, 0x06,
-    0x05, 0x1c, 0x85, 0x8f, 0x8f, 0x8f, 0x88, 0x80,
-    0x40, 0xa1, 0x08, 0x81, 0x40, 0xf7, 0x81, 0x41,
-    0x34, 0xd5, 0x99, 0x9a, 0x45, 0x20, 0x80, 0xe6,
-    0x82, 0xe4, 0x80, 0x41, 0x9e, 0x81, 0x40, 0xf0,
-    0x80, 0x41, 0x2e, 0x80, 0xd2, 0x80, 0x8b, 0x40,
-    0xd5, 0xa9, 0x80, 0xb4, 0x00, 0x82, 0xdf, 0x09,
-    0x80, 0xde, 0x80, 0xb0, 0xdd, 0x82, 0x8d, 0xdf,
-    0x9e, 0x80, 0xa7, 0x87, 0xae, 0x80, 0x41, 0x7f,
-    0x60, 0x72, 0x9b, 0x81, 0x40, 0xd1, 0x80, 0x40,
-    0x86, 0x81, 0x43, 0x61, 0x83, 0x60, 0x4d, 0x9f,
-    0x41, 0x0d, 0x08, 0x00, 0x81, 0x89, 0x00, 0x00,
-    0x09, 0x82, 0xc3, 0x81, 0xe9, 0xa5, 0x86, 0x8b,
-    0x24, 0x00, 0x97, 0x04, 0x00, 0x01, 0x01, 0x80,
-    0xeb, 0xa0, 0x41, 0x6a, 0x91, 0xbf, 0x81, 0xb5,
-    0xa7, 0x8c, 0x82, 0x99, 0x95, 0x94, 0x81, 0x8b,
-    0x80, 0x92, 0x03, 0x1a, 0x00, 0x80, 0x40, 0x86,
-    0x08, 0x80, 0x9f, 0x99, 0x40, 0x83, 0x15, 0x0d,
-    0x0d, 0x0a, 0x16, 0x06, 0x80, 0x88, 0x60, 0xbc,
-    0xa6, 0x83, 0x54, 0xb9, 0x86, 0x8d, 0x87, 0xbf,
-    0x85, 0x42, 0x3e, 0xd4, 0x80, 0xc6, 0x01, 0x08,
-    0x09, 0x0b, 0x80, 0x8b, 0x00, 0x06, 0x80, 0xc0,
-    0x03, 0x0f, 0x06, 0x80, 0x9b, 0x03, 0x04, 0x00,
-    0x16, 0x80, 0x41, 0x53, 0x81, 0x41, 0x23, 0x81,
-    0xb1, 0x55, 0xff, 0x18, 0x9a, 0x01, 0x00, 0x08,
-    0x80, 0x89, 0x03, 0x00, 0x00, 0x28, 0x18, 0x00,
-    0x00, 0x02, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00,
-    0x00, 0x01, 0x00, 0x0b, 0x06, 0x03, 0x03, 0x00,
-    0x80, 0x89, 0x80, 0x90, 0x22, 0x04, 0x80, 0x90,
-    0x42, 0x43, 0x8a, 0x84, 0x9e, 0x80, 0x9f, 0x99,
-    0x82, 0xa2, 0x80, 0xee, 0x82, 0x8c, 0xab, 0x83,
-    0x88, 0x31, 0x61, 0x05, 0xad, 0x42, 0x1d, 0x6b,
-    0x05, 0xe1, 0x4f, 0xff,
-};
-
-static const uint8_t unicode_prop_ASCII_Hex_Digit_table[5] = {
-    0xaf, 0x89, 0x35, 0x99, 0x85,
-};
-
-static const uint8_t unicode_prop_Bidi_Control_table[10] = {
-    0x46, 0x1b, 0x80, 0x59, 0xf0, 0x81, 0x99, 0x84,
-    0xb6, 0x83,
-};
-
-static const uint8_t unicode_prop_Dash_table[50] = {
-    0xac, 0x80, 0x45, 0x5b, 0x80, 0xb2, 0x80, 0x4e,
-    0x40, 0x80, 0x44, 0x04, 0x80, 0x48, 0x08, 0x85,
-    0xbc, 0x80, 0xa6, 0x80, 0x8e, 0x80, 0x41, 0x85,
-    0x80, 0x4c, 0x03, 0x01, 0x80, 0x9e, 0x0b, 0x80,
-    0x41, 0xda, 0x80, 0x92, 0x80, 0xee, 0x80, 0x60,
-    0xcd, 0x8f, 0x81, 0xa4, 0x80, 0x89, 0x80, 0x40,
-    0xa8, 0x80,
-};
-
-static const uint8_t unicode_prop_Deprecated_table[23] = {
-    0x41, 0x48, 0x80, 0x45, 0x28, 0x80, 0x49, 0x02,
-    0x00, 0x80, 0x48, 0x28, 0x81, 0x48, 0xc4, 0x85,
-    0x42, 0xb8, 0x81, 0x6d, 0xdc, 0xd5, 0x80,
-};
-
-static const uint8_t unicode_prop_Diacritic_table[350] = {
-    0xdd, 0x00, 0x80, 0xc6, 0x05, 0x03, 0x01, 0x81,
-    0x41, 0xf6, 0x40, 0x9e, 0x07, 0x25, 0x90, 0x0b,
-    0x80, 0x88, 0x81, 0x40, 0xfc, 0x84, 0x40, 0xd0,
-    0x80, 0xb6, 0x90, 0x80, 0x9a, 0x00, 0x01, 0x00,
-    0x40, 0x85, 0x3b, 0x81, 0x40, 0x85, 0x0b, 0x0a,
-    0x82, 0xc2, 0x9a, 0xda, 0x8a, 0xb9, 0x8a, 0xa1,
-    0x81, 0x40, 0xc8, 0x9b, 0xbc, 0x80, 0x8f, 0x02,
-    0x83, 0x9b, 0x80, 0xc9, 0x80, 0x8f, 0x80, 0xed,
-    0x80, 0x8f, 0x80, 0xed, 0x80, 0x8f, 0x80, 0xae,
-    0x82, 0xbb, 0x80, 0x8f, 0x80, 0xfe, 0x80, 0xfe,
-    0x80, 0xed, 0x80, 0x8f, 0x80, 0xec, 0x81, 0x8f,
-    0x80, 0xfb, 0x80, 0xfb, 0x28, 0x80, 0xea, 0x80,
-    0x8c, 0x84, 0xca, 0x81, 0x9a, 0x00, 0x00, 0x03,
-    0x81, 0xc1, 0x10, 0x81, 0xbd, 0x80, 0xef, 0x00,
-    0x81, 0xa7, 0x0b, 0x84, 0x98, 0x30, 0x80, 0x89,
-    0x81, 0x42, 0xc0, 0x82, 0x44, 0x68, 0x8a, 0x88,
-    0x80, 0x41, 0x5a, 0x82, 0x41, 0x38, 0x39, 0x80,
-    0xaf, 0x8d, 0xf5, 0x80, 0x8e, 0x80, 0xa5, 0x88,
-    0xb5, 0x81, 0x40, 0x89, 0x81, 0xbf, 0x85, 0xd1,
-    0x98, 0x18, 0x28, 0x0a, 0xb1, 0xbe, 0xd8, 0x8b,
-    0xa4, 0x22, 0x82, 0x41, 0xbc, 0x00, 0x82, 0x8a,
-    0x82, 0x8c, 0x82, 0x8c, 0x82, 0x8c, 0x81, 0x4c,
-    0xef, 0x82, 0x41, 0x3c, 0x80, 0x41, 0xf9, 0x85,
-    0xe8, 0x83, 0xde, 0x80, 0x60, 0x75, 0x71, 0x80,
-    0x8b, 0x08, 0x80, 0x9b, 0x81, 0xd1, 0x81, 0x8d,
-    0xa1, 0xe5, 0x82, 0xec, 0x81, 0x40, 0xc9, 0x80,
-    0x9a, 0x91, 0xb8, 0x83, 0xa3, 0x80, 0xde, 0x80,
-    0x8b, 0x80, 0xa3, 0x80, 0x40, 0x94, 0x82, 0xc0,
-    0x83, 0xb2, 0x80, 0xe3, 0x84, 0x40, 0x8b, 0x81,
-    0x60, 0x4f, 0x2f, 0x80, 0x43, 0x00, 0x8f, 0x41,
-    0x0d, 0x00, 0x80, 0xae, 0x80, 0xac, 0x81, 0xc2,
-    0x80, 0x42, 0xfb, 0x80, 0x48, 0x03, 0x81, 0x42,
-    0x3a, 0x85, 0x42, 0x1d, 0x8a, 0x41, 0x67, 0x81,
-    0xf7, 0x81, 0xbd, 0x80, 0xcb, 0x80, 0x88, 0x82,
-    0xe7, 0x81, 0x40, 0xb1, 0x81, 0xd0, 0x80, 0x8f,
-    0x80, 0x97, 0x32, 0x84, 0x40, 0xcc, 0x02, 0x80,
-    0xfa, 0x81, 0x40, 0xfa, 0x81, 0xfd, 0x80, 0xf5,
-    0x81, 0xf2, 0x80, 0x41, 0x0c, 0x81, 0x41, 0xa4,
-    0x80, 0xd2, 0x80, 0x91, 0x80, 0xd0, 0x80, 0x41,
-    0xa4, 0x80, 0x41, 0x01, 0x00, 0x81, 0xd0, 0x80,
-    0x60, 0x4d, 0x57, 0x84, 0xba, 0x86, 0x44, 0x57,
-    0x90, 0x60, 0x61, 0xc6, 0x12, 0x2f, 0x39, 0x86,
-    0x9d, 0x83, 0x4f, 0x81, 0x86, 0x41, 0xb4, 0x83,
-    0x45, 0xdf, 0x86, 0xec, 0x10, 0x82,
-};
-
-static const uint8_t unicode_prop_Extender_table[86] = {
-    0x40, 0xb6, 0x80, 0x42, 0x17, 0x81, 0x43, 0x6d,
-    0x80, 0x41, 0xb8, 0x80, 0x46, 0x4a, 0x80, 0xfe,
-    0x80, 0x49, 0x42, 0x80, 0xb7, 0x80, 0x42, 0x62,
-    0x80, 0x41, 0x8d, 0x80, 0xc3, 0x80, 0x53, 0x88,
-    0x80, 0xaa, 0x84, 0xe6, 0x81, 0xdc, 0x82, 0x60,
-    0x6f, 0x15, 0x80, 0x45, 0xf5, 0x80, 0x43, 0xc1,
-    0x80, 0x95, 0x80, 0x40, 0x88, 0x80, 0xeb, 0x80,
-    0x94, 0x81, 0x60, 0x54, 0x7a, 0x80, 0x53, 0xeb,
-    0x80, 0x42, 0x67, 0x82, 0x44, 0xce, 0x80, 0x60,
-    0x50, 0xa8, 0x81, 0x44, 0x9b, 0x08, 0x80, 0x60,
-    0x71, 0x57, 0x81, 0x48, 0x05, 0x82,
-};
-
-static const uint8_t unicode_prop_Hex_Digit_table[12] = {
-    0xaf, 0x89, 0x35, 0x99, 0x85, 0x60, 0xfe, 0xa8,
-    0x89, 0x35, 0x99, 0x85,
-};
-
-static const uint8_t unicode_prop_IDS_Binary_Operator_table[5] = {
-    0x60, 0x2f, 0xef, 0x09, 0x87,
-};
-
-static const uint8_t unicode_prop_IDS_Trinary_Operator_table[4] = {
-    0x60, 0x2f, 0xf1, 0x81,
-};
-
-static const uint8_t unicode_prop_Ideographic_table[58] = {
-    0x60, 0x30, 0x05, 0x81, 0x98, 0x88, 0x8d, 0x82,
-    0x43, 0xc4, 0x59, 0xb5, 0xc9, 0x60, 0x51, 0xef,
-    0x60, 0x59, 0x0f, 0x41, 0x6d, 0x81, 0xe9, 0x60,
-    0x75, 0x25, 0x57, 0xf7, 0x87, 0x42, 0xf2, 0x60,
-    0x26, 0x7c, 0x41, 0x8b, 0x60, 0x4d, 0x03, 0x60,
-    0xa6, 0xd6, 0xa8, 0x50, 0x34, 0x8a, 0x40, 0xdd,
-    0x81, 0x56, 0x81, 0x8d, 0x5d, 0x30, 0x4c, 0x1e,
-    0x42, 0x1d,
-};
-
-static const uint8_t unicode_prop_Join_Control_table[4] = {
-    0x60, 0x20, 0x0b, 0x81,
-};
-
-static const uint8_t unicode_prop_Logical_Order_Exception_table[15] = {
-    0x4e, 0x3f, 0x84, 0xfa, 0x84, 0x4a, 0xef, 0x11,
-    0x80, 0x60, 0x90, 0xf9, 0x09, 0x00, 0x81,
-};
-
-static const uint8_t unicode_prop_Noncharacter_Code_Point_table[71] = {
-    0x60, 0xfd, 0xcf, 0x9f, 0x42, 0x0d, 0x81, 0x60,
-    0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
-    0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
-    0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
-    0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
-    0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
-    0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
-    0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
-    0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81,
-};
-
-static const uint8_t unicode_prop_Pattern_Syntax_table[58] = {
-    0xa0, 0x8e, 0x89, 0x86, 0x99, 0x18, 0x80, 0x99,
-    0x83, 0xa1, 0x30, 0x00, 0x08, 0x00, 0x0b, 0x03,
-    0x02, 0x80, 0x96, 0x80, 0x9e, 0x80, 0x5f, 0x17,
-    0x97, 0x87, 0x8e, 0x81, 0x92, 0x80, 0x89, 0x41,
-    0x30, 0x42, 0xcf, 0x40, 0x9f, 0x42, 0x75, 0x9d,
-    0x44, 0x6b, 0x41, 0xff, 0xff, 0x41, 0x80, 0x13,
-    0x98, 0x8e, 0x80, 0x60, 0xcd, 0x0c, 0x81, 0x41,
-    0x04, 0x81,
-};
-
-static const uint8_t unicode_prop_Pattern_White_Space_table[11] = {
-    0x88, 0x84, 0x91, 0x80, 0xe3, 0x80, 0x5f, 0x87,
-    0x81, 0x97, 0x81,
-};
-
-static const uint8_t unicode_prop_Quotation_Mark_table[31] = {
-    0xa1, 0x03, 0x80, 0x40, 0x82, 0x80, 0x8e, 0x80,
-    0x5f, 0x5b, 0x87, 0x98, 0x81, 0x4e, 0x06, 0x80,
-    0x41, 0xc8, 0x83, 0x8c, 0x82, 0x60, 0xce, 0x20,
-    0x83, 0x40, 0xbc, 0x03, 0x80, 0xd9, 0x81,
-};
-
-static const uint8_t unicode_prop_Radical_table[9] = {
-    0x60, 0x2e, 0x7f, 0x99, 0x80, 0xd8, 0x8b, 0x40,
-    0xd5,
-};
-
-static const uint8_t unicode_prop_Regional_Indicator_table[4] = {
-    0x61, 0xf1, 0xe5, 0x99,
-};
-
-static const uint8_t unicode_prop_Sentence_Terminal_table[184] = {
-    0xa0, 0x80, 0x8b, 0x80, 0x8f, 0x80, 0x45, 0x48,
-    0x80, 0x40, 0x93, 0x81, 0x40, 0xb3, 0x80, 0xaa,
-    0x82, 0x40, 0xf5, 0x80, 0xbc, 0x00, 0x02, 0x81,
-    0x41, 0x24, 0x81, 0x46, 0xe3, 0x81, 0x43, 0x15,
-    0x03, 0x81, 0x43, 0x04, 0x80, 0x40, 0xc5, 0x81,
-    0x40, 0xcb, 0x04, 0x80, 0x41, 0x39, 0x81, 0x41,
-    0x61, 0x83, 0x40, 0xad, 0x09, 0x81, 0x40, 0xda,
-    0x81, 0xc0, 0x81, 0x43, 0xbb, 0x81, 0x88, 0x82,
-    0x4d, 0xe3, 0x80, 0x8c, 0x80, 0x41, 0xc4, 0x80,
-    0x60, 0x74, 0xfb, 0x80, 0x41, 0x0d, 0x81, 0x40,
-    0xe2, 0x02, 0x80, 0x41, 0x7d, 0x81, 0xd5, 0x81,
-    0xde, 0x80, 0x40, 0x97, 0x81, 0x40, 0x92, 0x82,
-    0x40, 0x8f, 0x81, 0x40, 0xf8, 0x80, 0x60, 0x52,
-    0x65, 0x02, 0x81, 0x40, 0xa8, 0x80, 0x8b, 0x80,
-    0x8f, 0x80, 0xc0, 0x80, 0x4a, 0xf3, 0x81, 0x44,
-    0xfc, 0x84, 0x40, 0xec, 0x81, 0xf4, 0x83, 0xfe,
-    0x82, 0x40, 0x80, 0x0d, 0x80, 0x8f, 0x81, 0xd7,
-    0x08, 0x81, 0xeb, 0x80, 0x41, 0xa0, 0x81, 0x41,
-    0x74, 0x0c, 0x8e, 0xe8, 0x81, 0x40, 0xf8, 0x82,
-    0x43, 0x02, 0x81, 0xd6, 0x81, 0x41, 0xa3, 0x81,
-    0x42, 0xb3, 0x81, 0x60, 0x4b, 0x74, 0x81, 0x40,
-    0x84, 0x80, 0xc0, 0x81, 0x8a, 0x80, 0x43, 0x52,
-    0x80, 0x60, 0x4e, 0x05, 0x80, 0x5d, 0xe7, 0x80,
-};
-
-static const uint8_t unicode_prop_Soft_Dotted_table[71] = {
-    0xe8, 0x81, 0x40, 0xc3, 0x80, 0x41, 0x18, 0x80,
-    0x9d, 0x80, 0xb3, 0x80, 0x93, 0x80, 0x41, 0x3f,
-    0x80, 0xe1, 0x00, 0x80, 0x59, 0x08, 0x80, 0xb2,
-    0x80, 0x8c, 0x02, 0x80, 0x40, 0x83, 0x80, 0x40,
-    0x9c, 0x80, 0x41, 0xa4, 0x80, 0x40, 0xd5, 0x81,
-    0x4b, 0x31, 0x80, 0x61, 0xa7, 0xa4, 0x81, 0xb1,
-    0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1,
-    0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1,
-    0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81,
-};
-
-static const uint8_t unicode_prop_Terminal_Punctuation_table[237] = {
-    0xa0, 0x80, 0x89, 0x00, 0x80, 0x8a, 0x0a, 0x80,
-    0x43, 0x3d, 0x07, 0x80, 0x42, 0x00, 0x80, 0xb8,
-    0x80, 0xc7, 0x80, 0x8d, 0x01, 0x81, 0x40, 0xb3,
-    0x80, 0xaa, 0x8a, 0x00, 0x40, 0xea, 0x81, 0xb5,
-    0x8e, 0x9e, 0x80, 0x41, 0x04, 0x81, 0x44, 0xf3,
-    0x81, 0x40, 0xab, 0x03, 0x85, 0x41, 0x36, 0x81,
-    0x43, 0x14, 0x87, 0x43, 0x04, 0x80, 0xfb, 0x82,
-    0xc6, 0x81, 0x40, 0x9c, 0x12, 0x80, 0xa6, 0x19,
-    0x81, 0x41, 0x39, 0x81, 0x41, 0x61, 0x83, 0x40,
-    0xad, 0x08, 0x82, 0x40, 0xda, 0x84, 0xbd, 0x81,
-    0x43, 0xbb, 0x81, 0x88, 0x82, 0x4d, 0xe3, 0x80,
-    0x8c, 0x03, 0x80, 0x89, 0x00, 0x81, 0x41, 0xb0,
-    0x81, 0x60, 0x74, 0xfa, 0x81, 0x41, 0x0c, 0x82,
-    0x40, 0xe2, 0x84, 0x41, 0x7d, 0x81, 0xd5, 0x81,
-    0xde, 0x80, 0x40, 0x96, 0x82, 0x40, 0x92, 0x82,
-    0xfe, 0x80, 0x8f, 0x81, 0x40, 0xf8, 0x80, 0x60,
-    0x52, 0x63, 0x10, 0x83, 0x40, 0xa8, 0x80, 0x89,
-    0x00, 0x80, 0x8a, 0x0a, 0x80, 0xc0, 0x01, 0x80,
-    0x44, 0x39, 0x80, 0xaf, 0x80, 0x44, 0x85, 0x80,
-    0x40, 0xc6, 0x80, 0x41, 0x35, 0x81, 0x40, 0x97,
-    0x85, 0xc3, 0x85, 0xd8, 0x83, 0x43, 0xb7, 0x84,
-    0x40, 0xec, 0x86, 0xef, 0x83, 0xfe, 0x82, 0x40,
-    0x80, 0x0d, 0x80, 0x8f, 0x81, 0xd7, 0x84, 0xeb,
-    0x80, 0x41, 0xa0, 0x82, 0x8c, 0x80, 0x41, 0x65,
-    0x1a, 0x8e, 0xe8, 0x81, 0x40, 0xf8, 0x82, 0x43,
-    0x02, 0x81, 0xd6, 0x0b, 0x81, 0x41, 0x9d, 0x82,
-    0xac, 0x80, 0x42, 0x84, 0x81, 0x45, 0x76, 0x84,
-    0x60, 0x45, 0xf8, 0x81, 0x40, 0x84, 0x80, 0xc0,
-    0x82, 0x89, 0x80, 0x43, 0x51, 0x81, 0x60, 0x4e,
-    0x05, 0x80, 0x5d, 0xe6, 0x83,
-};
-
-static const uint8_t unicode_prop_Unified_Ideograph_table[38] = {
-    0x60, 0x33, 0xff, 0x59, 0xb5, 0xc9, 0x60, 0x51,
-    0xef, 0x60, 0x5a, 0x1d, 0x08, 0x00, 0x81, 0x89,
-    0x00, 0x00, 0x09, 0x82, 0x61, 0x05, 0xd5, 0x60,
-    0xa6, 0xd6, 0xa8, 0x50, 0x34, 0x8a, 0x40, 0xdd,
-    0x81, 0x56, 0x81, 0x8d, 0x5d, 0x30,
-};
-
-static const uint8_t unicode_prop_Variation_Selector_table[12] = {
-    0x58, 0x0a, 0x82, 0x60, 0xe5, 0xf1, 0x8f, 0x6d,
-    0x02, 0xef, 0x40, 0xef,
-};
-
-static const uint8_t unicode_prop_White_Space_table[22] = {
-    0x88, 0x84, 0x91, 0x80, 0xe3, 0x80, 0x99, 0x80,
-    0x55, 0xde, 0x80, 0x49, 0x7e, 0x8a, 0x9c, 0x0c,
-    0x80, 0xae, 0x80, 0x4f, 0x9f, 0x80,
-};
-
-static const uint8_t unicode_prop_Bidi_Mirrored_table[171] = {
-    0xa7, 0x81, 0x91, 0x00, 0x80, 0x9b, 0x00, 0x80,
-    0x9c, 0x00, 0x80, 0xac, 0x80, 0x8e, 0x80, 0x4e,
-    0x7d, 0x83, 0x47, 0x5c, 0x81, 0x49, 0x9b, 0x81,
-    0x89, 0x81, 0xb5, 0x81, 0x8d, 0x81, 0x40, 0xb0,
-    0x80, 0x40, 0xbf, 0x1a, 0x2a, 0x02, 0x0a, 0x18,
-    0x18, 0x00, 0x03, 0x88, 0x20, 0x80, 0x91, 0x23,
-    0x88, 0x08, 0x00, 0x39, 0x9e, 0x0b, 0x20, 0x88,
-    0x09, 0x92, 0x21, 0x88, 0x21, 0x0b, 0x97, 0x81,
-    0x8f, 0x3b, 0x93, 0x0e, 0x81, 0x44, 0x3c, 0x8d,
-    0xc9, 0x01, 0x18, 0x08, 0x14, 0x1c, 0x12, 0x8d,
-    0x41, 0x92, 0x95, 0x0d, 0x80, 0x8d, 0x38, 0x35,
-    0x10, 0x1c, 0x01, 0x0c, 0x18, 0x02, 0x09, 0x89,
-    0x29, 0x81, 0x8b, 0x92, 0x03, 0x08, 0x00, 0x08,
-    0x03, 0x21, 0x2a, 0x97, 0x81, 0x8a, 0x0b, 0x18,
-    0x09, 0x0b, 0xaa, 0x0f, 0x80, 0xa7, 0x20, 0x00,
-    0x14, 0x22, 0x18, 0x14, 0x00, 0x40, 0xff, 0x80,
-    0x42, 0x02, 0x1a, 0x08, 0x81, 0x8d, 0x09, 0x89,
-    0x41, 0xdd, 0x89, 0x0f, 0x60, 0xce, 0x3c, 0x2c,
-    0x81, 0x40, 0xa1, 0x81, 0x91, 0x00, 0x80, 0x9b,
-    0x00, 0x80, 0x9c, 0x00, 0x00, 0x08, 0x81, 0x60,
-    0xd7, 0x76, 0x80, 0xb8, 0x80, 0xb8, 0x80, 0xb8,
-    0x80, 0xb8, 0x80,
-};
-
-static const uint8_t unicode_prop_Emoji_table[236] = {
-    0xa2, 0x05, 0x04, 0x89, 0xee, 0x03, 0x80, 0x5f,
-    0x8c, 0x80, 0x8b, 0x80, 0x40, 0xd7, 0x80, 0x95,
-    0x80, 0xd9, 0x85, 0x8e, 0x81, 0x41, 0x6e, 0x81,
-    0x8b, 0x80, 0x40, 0xa5, 0x80, 0x98, 0x8a, 0x1a,
-    0x40, 0xc6, 0x80, 0x40, 0xe6, 0x81, 0x89, 0x80,
-    0x88, 0x80, 0xb9, 0x18, 0x84, 0x88, 0x01, 0x01,
-    0x09, 0x03, 0x01, 0x00, 0x09, 0x02, 0x02, 0x0f,
-    0x14, 0x00, 0x04, 0x8b, 0x8a, 0x09, 0x00, 0x08,
-    0x80, 0x91, 0x01, 0x81, 0x91, 0x28, 0x00, 0x0a,
-    0x0f, 0x0b, 0x81, 0x8a, 0x0c, 0x09, 0x04, 0x08,
-    0x00, 0x81, 0x93, 0x0c, 0x28, 0x19, 0x03, 0x01,
-    0x01, 0x28, 0x01, 0x00, 0x00, 0x05, 0x02, 0x05,
-    0x80, 0x89, 0x81, 0x8e, 0x01, 0x03, 0x00, 0x03,
-    0x10, 0x80, 0x8a, 0x81, 0xaf, 0x82, 0x88, 0x80,
-    0x8d, 0x80, 0x8d, 0x80, 0x41, 0x73, 0x81, 0x41,
-    0xce, 0x82, 0x92, 0x81, 0xb2, 0x03, 0x80, 0x44,
-    0xd9, 0x80, 0x8b, 0x80, 0x42, 0x58, 0x00, 0x80,
-    0x61, 0xbd, 0x69, 0x80, 0x40, 0xc9, 0x80, 0x40,
-    0x9f, 0x81, 0x8b, 0x81, 0x8d, 0x01, 0x89, 0xca,
-    0x99, 0x01, 0x96, 0x80, 0x93, 0x01, 0x88, 0x94,
-    0x81, 0x40, 0xad, 0xa1, 0x81, 0xef, 0x09, 0x02,
-    0x81, 0xd2, 0x0a, 0x80, 0x41, 0x06, 0x80, 0xbe,
-    0x8a, 0x28, 0x97, 0x31, 0x0f, 0x8b, 0x01, 0x19,
-    0x03, 0x81, 0x8c, 0x09, 0x07, 0x81, 0x88, 0x04,
-    0x82, 0x8b, 0x17, 0x11, 0x00, 0x03, 0x05, 0x02,
-    0x05, 0xd5, 0xaf, 0xc5, 0x27, 0x08, 0x89, 0x2a,
-    0x00, 0x0a, 0x01, 0x87, 0x40, 0xe4, 0x8b, 0x41,
-    0x20, 0xad, 0x80, 0x89, 0x80, 0xaa, 0x03, 0x82,
-    0xa8, 0x0d, 0x82, 0x9c, 0x81, 0xb2, 0xef, 0x1b,
-    0x14, 0x82, 0x8c, 0x85,
-};
-
-static const uint8_t unicode_prop_Emoji_Component_table[28] = {
-    0xa2, 0x05, 0x04, 0x89, 0x5f, 0xd2, 0x80, 0x40,
-    0xd4, 0x80, 0x60, 0xdd, 0x2a, 0x80, 0x60, 0xf3,
-    0xd5, 0x99, 0x41, 0xfa, 0x84, 0x45, 0xaf, 0x83,
-    0x6c, 0x06, 0x6b, 0xdf,
-};
-
-static const uint8_t unicode_prop_Emoji_Modifier_table[4] = {
-    0x61, 0xf3, 0xfa, 0x84,
-};
-
-static const uint8_t unicode_prop_Emoji_Modifier_Base_table[63] = {
-    0x60, 0x26, 0x1c, 0x80, 0x40, 0xda, 0x80, 0x8f,
-    0x83, 0x61, 0xcc, 0x76, 0x80, 0xbb, 0x11, 0x01,
-    0x82, 0xf4, 0x09, 0x8a, 0x94, 0x92, 0x10, 0x1a,
-    0x02, 0x30, 0x00, 0x97, 0x80, 0x40, 0xc8, 0x0b,
-    0x80, 0x94, 0x03, 0x81, 0x40, 0xad, 0x12, 0x84,
-    0xd2, 0x80, 0x8f, 0x82, 0x88, 0x80, 0x8a, 0x80,
-    0x42, 0x41, 0x07, 0x3d, 0x80, 0x88, 0x89, 0x0a,
-    0xf5, 0x08, 0x08, 0x80, 0x90, 0x10, 0x8c,
-};
-
-static const uint8_t unicode_prop_Emoji_Presentation_table[143] = {
-    0x60, 0x23, 0x19, 0x81, 0x40, 0xcc, 0x1a, 0x01,
-    0x80, 0x42, 0x08, 0x81, 0x94, 0x81, 0xb1, 0x8b,
-    0xaa, 0x80, 0x92, 0x80, 0x8c, 0x07, 0x81, 0x90,
-    0x0c, 0x0f, 0x04, 0x80, 0x94, 0x06, 0x08, 0x03,
-    0x01, 0x06, 0x03, 0x81, 0x9b, 0x80, 0xa2, 0x00,
-    0x03, 0x10, 0x80, 0xbc, 0x82, 0x97, 0x80, 0x8d,
-    0x80, 0x43, 0x5a, 0x81, 0xb2, 0x03, 0x80, 0x61,
-    0xc4, 0xad, 0x80, 0x40, 0xc9, 0x80, 0x40, 0xbd,
-    0x01, 0x89, 0xca, 0x99, 0x00, 0x97, 0x80, 0x93,
-    0x01, 0x20, 0x82, 0x94, 0x81, 0x40, 0xad, 0xa0,
-    0x8b, 0x88, 0x80, 0xc5, 0x80, 0x95, 0x8b, 0xaa,
-    0x1c, 0x8b, 0x90, 0x10, 0x82, 0xc6, 0x00, 0x80,
-    0x40, 0xba, 0x81, 0xbe, 0x8c, 0x18, 0x97, 0x91,
-    0x80, 0x99, 0x81, 0x8c, 0x80, 0xd5, 0xd4, 0xaf,
-    0xc5, 0x28, 0x12, 0x08, 0x94, 0x0e, 0x86, 0x40,
-    0xe4, 0x8b, 0x41, 0x20, 0xad, 0x80, 0x89, 0x80,
-    0xaa, 0x03, 0x82, 0xa8, 0x0d, 0x82, 0x9c, 0x81,
-    0xb2, 0xef, 0x1b, 0x14, 0x82, 0x8c, 0x85,
-};
-
-static const uint8_t unicode_prop_Extended_Pictographic_table[152] = {
-    0x40, 0xa8, 0x03, 0x80, 0x5f, 0x8c, 0x80, 0x8b,
-    0x80, 0x40, 0xd7, 0x80, 0x95, 0x80, 0xd9, 0x85,
-    0x8e, 0x81, 0x41, 0x6e, 0x81, 0x8b, 0x80, 0xde,
-    0x80, 0xc5, 0x80, 0x98, 0x8a, 0x1a, 0x40, 0xc6,
-    0x80, 0x40, 0xe6, 0x81, 0x89, 0x80, 0x88, 0x80,
-    0xb9, 0x18, 0x28, 0x8b, 0x80, 0xf1, 0x89, 0xf5,
-    0x81, 0x8a, 0x00, 0x00, 0x28, 0x10, 0x28, 0x89,
-    0x81, 0x8e, 0x01, 0x03, 0x00, 0x03, 0x10, 0x80,
-    0x8a, 0x84, 0xac, 0x82, 0x88, 0x80, 0x8d, 0x80,
-    0x8d, 0x80, 0x41, 0x73, 0x81, 0x41, 0xce, 0x82,
-    0x92, 0x81, 0xb2, 0x03, 0x80, 0x44, 0xd9, 0x80,
-    0x8b, 0x80, 0x42, 0x58, 0x00, 0x80, 0x61, 0xbd,
-    0x65, 0x40, 0xff, 0x8c, 0x82, 0x9e, 0x80, 0xbb,
-    0x85, 0x8b, 0x81, 0x8d, 0x01, 0x89, 0x91, 0xb8,
-    0x9a, 0x8e, 0x89, 0x80, 0x93, 0x01, 0x88, 0x03,
-    0x88, 0x41, 0xb1, 0x84, 0x41, 0x3d, 0x87, 0x41,
-    0x09, 0xaf, 0xff, 0xf3, 0x8b, 0xd4, 0xaa, 0x8b,
-    0x83, 0xb7, 0x87, 0x89, 0x85, 0xa7, 0x87, 0x9d,
-    0xd1, 0x8b, 0xae, 0x80, 0x89, 0x80, 0x46, 0xb6,
-};
-
-static const uint8_t unicode_prop_Default_Ignorable_Code_Point_table[51] = {
-    0x40, 0xac, 0x80, 0x42, 0xa0, 0x80, 0x42, 0xcb,
-    0x80, 0x4b, 0x41, 0x81, 0x46, 0x52, 0x81, 0xd4,
-    0x83, 0x47, 0xfb, 0x84, 0x99, 0x84, 0xb0, 0x8f,
-    0x50, 0xf3, 0x80, 0x60, 0xcc, 0x9a, 0x8f, 0x40,
-    0xee, 0x80, 0x40, 0x9f, 0x80, 0xce, 0x88, 0x60,
-    0xbc, 0xa6, 0x83, 0x54, 0xce, 0x87, 0x6c, 0x2e,
-    0x84, 0x4f, 0xff,
-};
-
-typedef enum {
-    UNICODE_PROP_Hyphen,
-    UNICODE_PROP_Other_Math,
-    UNICODE_PROP_Other_Alphabetic,
-    UNICODE_PROP_Other_Lowercase,
-    UNICODE_PROP_Other_Uppercase,
-    UNICODE_PROP_Other_Grapheme_Extend,
-    UNICODE_PROP_Other_Default_Ignorable_Code_Point,
-    UNICODE_PROP_Other_ID_Start,
-    UNICODE_PROP_Other_ID_Continue,
-    UNICODE_PROP_Prepended_Concatenation_Mark,
-    UNICODE_PROP_ID_Continue1,
-    UNICODE_PROP_XID_Start1,
-    UNICODE_PROP_XID_Continue1,
-    UNICODE_PROP_Changes_When_Titlecased1,
-    UNICODE_PROP_Changes_When_Casefolded1,
-    UNICODE_PROP_Changes_When_NFKC_Casefolded1,
-    UNICODE_PROP_ASCII_Hex_Digit,
-    UNICODE_PROP_Bidi_Control,
-    UNICODE_PROP_Dash,
-    UNICODE_PROP_Deprecated,
-    UNICODE_PROP_Diacritic,
-    UNICODE_PROP_Extender,
-    UNICODE_PROP_Hex_Digit,
-    UNICODE_PROP_IDS_Binary_Operator,
-    UNICODE_PROP_IDS_Trinary_Operator,
-    UNICODE_PROP_Ideographic,
-    UNICODE_PROP_Join_Control,
-    UNICODE_PROP_Logical_Order_Exception,
-    UNICODE_PROP_Noncharacter_Code_Point,
-    UNICODE_PROP_Pattern_Syntax,
-    UNICODE_PROP_Pattern_White_Space,
-    UNICODE_PROP_Quotation_Mark,
-    UNICODE_PROP_Radical,
-    UNICODE_PROP_Regional_Indicator,
-    UNICODE_PROP_Sentence_Terminal,
-    UNICODE_PROP_Soft_Dotted,
-    UNICODE_PROP_Terminal_Punctuation,
-    UNICODE_PROP_Unified_Ideograph,
-    UNICODE_PROP_Variation_Selector,
-    UNICODE_PROP_White_Space,
-    UNICODE_PROP_Bidi_Mirrored,
-    UNICODE_PROP_Emoji,
-    UNICODE_PROP_Emoji_Component,
-    UNICODE_PROP_Emoji_Modifier,
-    UNICODE_PROP_Emoji_Modifier_Base,
-    UNICODE_PROP_Emoji_Presentation,
-    UNICODE_PROP_Extended_Pictographic,
-    UNICODE_PROP_Default_Ignorable_Code_Point,
-    UNICODE_PROP_ID_Start,
-    UNICODE_PROP_Case_Ignorable,
-    UNICODE_PROP_ASCII,
-    UNICODE_PROP_Alphabetic,
-    UNICODE_PROP_Any,
-    UNICODE_PROP_Assigned,
-    UNICODE_PROP_Cased,
-    UNICODE_PROP_Changes_When_Casefolded,
-    UNICODE_PROP_Changes_When_Casemapped,
-    UNICODE_PROP_Changes_When_Lowercased,
-    UNICODE_PROP_Changes_When_NFKC_Casefolded,
-    UNICODE_PROP_Changes_When_Titlecased,
-    UNICODE_PROP_Changes_When_Uppercased,
-    UNICODE_PROP_Grapheme_Base,
-    UNICODE_PROP_Grapheme_Extend,
-    UNICODE_PROP_ID_Continue,
-    UNICODE_PROP_Lowercase,
-    UNICODE_PROP_Math,
-    UNICODE_PROP_Uppercase,
-    UNICODE_PROP_XID_Continue,
-    UNICODE_PROP_XID_Start,
-    UNICODE_PROP_Cased1,
-    UNICODE_PROP_COUNT,
-} UnicodePropertyEnum;
-
-static const char unicode_prop_name_table[] =
-    "ASCII_Hex_Digit,AHex"               "\0"
-    "Bidi_Control,Bidi_C"                "\0"
-    "Dash"                               "\0"
-    "Deprecated,Dep"                     "\0"
-    "Diacritic,Dia"                      "\0"
-    "Extender,Ext"                       "\0"
-    "Hex_Digit,Hex"                      "\0"
-    "IDS_Binary_Operator,IDSB"           "\0"
-    "IDS_Trinary_Operator,IDST"          "\0"
-    "Ideographic,Ideo"                   "\0"
-    "Join_Control,Join_C"                "\0"
-    "Logical_Order_Exception,LOE"        "\0"
-    "Noncharacter_Code_Point,NChar"      "\0"
-    "Pattern_Syntax,Pat_Syn"             "\0"
-    "Pattern_White_Space,Pat_WS"         "\0"
-    "Quotation_Mark,QMark"               "\0"
-    "Radical"                            "\0"
-    "Regional_Indicator,RI"              "\0"
-    "Sentence_Terminal,STerm"            "\0"
-    "Soft_Dotted,SD"                     "\0"
-    "Terminal_Punctuation,Term"          "\0"
-    "Unified_Ideograph,UIdeo"            "\0"
-    "Variation_Selector,VS"              "\0"
-    "White_Space,space"                  "\0"
-    "Bidi_Mirrored,Bidi_M"               "\0"
-    "Emoji"                              "\0"
-    "Emoji_Component"                    "\0"
-    "Emoji_Modifier"                     "\0"
-    "Emoji_Modifier_Base"                "\0"
-    "Emoji_Presentation"                 "\0"
-    "Extended_Pictographic"              "\0"
-    "Default_Ignorable_Code_Point,DI"    "\0"
-    "ID_Start,IDS"                       "\0"
-    "Case_Ignorable,CI"                  "\0"
-    "ASCII"                              "\0"
-    "Alphabetic,Alpha"                   "\0"
-    "Any"                                "\0"
-    "Assigned"                           "\0"
-    "Cased"                              "\0"
-    "Changes_When_Casefolded,CWCF"       "\0"
-    "Changes_When_Casemapped,CWCM"       "\0"
-    "Changes_When_Lowercased,CWL"        "\0"
-    "Changes_When_NFKC_Casefolded,CWKCF" "\0"
-    "Changes_When_Titlecased,CWT"        "\0"
-    "Changes_When_Uppercased,CWU"        "\0"
-    "Grapheme_Base,Gr_Base"              "\0"
-    "Grapheme_Extend,Gr_Ext"             "\0"
-    "ID_Continue,IDC"                    "\0"
-    "Lowercase,Lower"                    "\0"
-    "Math"                               "\0"
-    "Uppercase,Upper"                    "\0"
-    "XID_Continue,XIDC"                  "\0"
-    "XID_Start,XIDS"                     "\0"
-;
-
-static const uint8_t * const unicode_prop_table[] = {
-    unicode_prop_Hyphen_table,
-    unicode_prop_Other_Math_table,
-    unicode_prop_Other_Alphabetic_table,
-    unicode_prop_Other_Lowercase_table,
-    unicode_prop_Other_Uppercase_table,
-    unicode_prop_Other_Grapheme_Extend_table,
-    unicode_prop_Other_Default_Ignorable_Code_Point_table,
-    unicode_prop_Other_ID_Start_table,
-    unicode_prop_Other_ID_Continue_table,
-    unicode_prop_Prepended_Concatenation_Mark_table,
-    unicode_prop_ID_Continue1_table,
-    unicode_prop_XID_Start1_table,
-    unicode_prop_XID_Continue1_table,
-    unicode_prop_Changes_When_Titlecased1_table,
-    unicode_prop_Changes_When_Casefolded1_table,
-    unicode_prop_Changes_When_NFKC_Casefolded1_table,
-    unicode_prop_ASCII_Hex_Digit_table,
-    unicode_prop_Bidi_Control_table,
-    unicode_prop_Dash_table,
-    unicode_prop_Deprecated_table,
-    unicode_prop_Diacritic_table,
-    unicode_prop_Extender_table,
-    unicode_prop_Hex_Digit_table,
-    unicode_prop_IDS_Binary_Operator_table,
-    unicode_prop_IDS_Trinary_Operator_table,
-    unicode_prop_Ideographic_table,
-    unicode_prop_Join_Control_table,
-    unicode_prop_Logical_Order_Exception_table,
-    unicode_prop_Noncharacter_Code_Point_table,
-    unicode_prop_Pattern_Syntax_table,
-    unicode_prop_Pattern_White_Space_table,
-    unicode_prop_Quotation_Mark_table,
-    unicode_prop_Radical_table,
-    unicode_prop_Regional_Indicator_table,
-    unicode_prop_Sentence_Terminal_table,
-    unicode_prop_Soft_Dotted_table,
-    unicode_prop_Terminal_Punctuation_table,
-    unicode_prop_Unified_Ideograph_table,
-    unicode_prop_Variation_Selector_table,
-    unicode_prop_White_Space_table,
-    unicode_prop_Bidi_Mirrored_table,
-    unicode_prop_Emoji_table,
-    unicode_prop_Emoji_Component_table,
-    unicode_prop_Emoji_Modifier_table,
-    unicode_prop_Emoji_Modifier_Base_table,
-    unicode_prop_Emoji_Presentation_table,
-    unicode_prop_Extended_Pictographic_table,
-    unicode_prop_Default_Ignorable_Code_Point_table,
-    unicode_prop_ID_Start_table,
-    unicode_prop_Case_Ignorable_table,
-};
-
-static const uint16_t unicode_prop_len_table[] = {
-    countof(unicode_prop_Hyphen_table),
-    countof(unicode_prop_Other_Math_table),
-    countof(unicode_prop_Other_Alphabetic_table),
-    countof(unicode_prop_Other_Lowercase_table),
-    countof(unicode_prop_Other_Uppercase_table),
-    countof(unicode_prop_Other_Grapheme_Extend_table),
-    countof(unicode_prop_Other_Default_Ignorable_Code_Point_table),
-    countof(unicode_prop_Other_ID_Start_table),
-    countof(unicode_prop_Other_ID_Continue_table),
-    countof(unicode_prop_Prepended_Concatenation_Mark_table),
-    countof(unicode_prop_ID_Continue1_table),
-    countof(unicode_prop_XID_Start1_table),
-    countof(unicode_prop_XID_Continue1_table),
-    countof(unicode_prop_Changes_When_Titlecased1_table),
-    countof(unicode_prop_Changes_When_Casefolded1_table),
-    countof(unicode_prop_Changes_When_NFKC_Casefolded1_table),
-    countof(unicode_prop_ASCII_Hex_Digit_table),
-    countof(unicode_prop_Bidi_Control_table),
-    countof(unicode_prop_Dash_table),
-    countof(unicode_prop_Deprecated_table),
-    countof(unicode_prop_Diacritic_table),
-    countof(unicode_prop_Extender_table),
-    countof(unicode_prop_Hex_Digit_table),
-    countof(unicode_prop_IDS_Binary_Operator_table),
-    countof(unicode_prop_IDS_Trinary_Operator_table),
-    countof(unicode_prop_Ideographic_table),
-    countof(unicode_prop_Join_Control_table),
-    countof(unicode_prop_Logical_Order_Exception_table),
-    countof(unicode_prop_Noncharacter_Code_Point_table),
-    countof(unicode_prop_Pattern_Syntax_table),
-    countof(unicode_prop_Pattern_White_Space_table),
-    countof(unicode_prop_Quotation_Mark_table),
-    countof(unicode_prop_Radical_table),
-    countof(unicode_prop_Regional_Indicator_table),
-    countof(unicode_prop_Sentence_Terminal_table),
-    countof(unicode_prop_Soft_Dotted_table),
-    countof(unicode_prop_Terminal_Punctuation_table),
-    countof(unicode_prop_Unified_Ideograph_table),
-    countof(unicode_prop_Variation_Selector_table),
-    countof(unicode_prop_White_Space_table),
-    countof(unicode_prop_Bidi_Mirrored_table),
-    countof(unicode_prop_Emoji_table),
-    countof(unicode_prop_Emoji_Component_table),
-    countof(unicode_prop_Emoji_Modifier_table),
-    countof(unicode_prop_Emoji_Modifier_Base_table),
-    countof(unicode_prop_Emoji_Presentation_table),
-    countof(unicode_prop_Extended_Pictographic_table),
-    countof(unicode_prop_Default_Ignorable_Code_Point_table),
-    countof(unicode_prop_ID_Start_table),
-    countof(unicode_prop_Case_Ignorable_table),
-};
-
-#endif /* CONFIG_ALL_UNICODE */
diff --git a/third-party/libunicode.c b/third-party/libunicode.c
deleted file mode 100644
index 6fe6945..0000000
--- a/third-party/libunicode.c
+++ /dev/null
@@ -1,1538 +0,0 @@
-/*
- * Unicode utilities
- * 
- * Copyright (c) 2017-2018 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-#include <assert.h>
-
-#include "cutils.h"
-#include "libunicode.h"
-#include "libunicode-table.h"
-
-enum {
-    RUN_TYPE_U,
-    RUN_TYPE_L,
-    RUN_TYPE_UF,
-    RUN_TYPE_LF,
-    RUN_TYPE_UL,
-    RUN_TYPE_LSU,
-    RUN_TYPE_U2L_399_EXT2,
-    RUN_TYPE_UF_D20,
-    RUN_TYPE_UF_D1_EXT,
-    RUN_TYPE_U_EXT,
-    RUN_TYPE_LF_EXT,
-    RUN_TYPE_U_EXT2,
-    RUN_TYPE_L_EXT2,
-    RUN_TYPE_U_EXT3,
-};
-
-/* conv_type:
-   0 = to upper 
-   1 = to lower
-   2 = case folding (= to lower with modifications) 
-*/
-int lre_case_conv(uint32_t *res, uint32_t c, int conv_type)
-{
-    if (c < 128) {
-        if (conv_type) {
-            if (c >= 'A' && c <= 'Z') {
-                c = c - 'A' + 'a';
-            }
-        } else {
-            if (c >= 'a' && c <= 'z') {
-                c = c - 'a' + 'A';
-            }
-        }
-    } else {
-        uint32_t v, code, data, type, len, a, is_lower;
-        int idx, idx_min, idx_max;
-        
-        is_lower = (conv_type != 0);
-        idx_min = 0;
-        idx_max = countof(case_conv_table1) - 1;
-        while (idx_min <= idx_max) {
-            idx = (unsigned)(idx_max + idx_min) / 2;
-            v = case_conv_table1[idx];
-            code = v >> (32 - 17);
-            len = (v >> (32 - 17 - 7)) & 0x7f;
-            if (c < code) {
-                idx_max = idx - 1;
-            } else if (c >= code + len) {
-                idx_min = idx + 1;
-            } else {
-                type = (v >> (32 - 17 - 7 - 4)) & 0xf;
-                data = ((v & 0xf) << 8) | case_conv_table2[idx];
-                switch(type) {
-                case RUN_TYPE_U:
-                case RUN_TYPE_L:
-                case RUN_TYPE_UF:
-                case RUN_TYPE_LF:
-                    if (conv_type == (type & 1) ||
-                        (type >= RUN_TYPE_UF && conv_type == 2)) {
-                        c = c - code + (case_conv_table1[data] >> (32 - 17));
-                    }
-                    break;
-                case RUN_TYPE_UL:
-                    a = c - code;
-                    if ((a & 1) != (1 - is_lower))
-                        break;
-                    c = (a ^ 1) + code;
-                    break;
-                case RUN_TYPE_LSU:
-                    a = c - code;
-                    if (a == 1) {
-                        c += 2 * is_lower - 1;
-                    } else if (a == (1 - is_lower) * 2) {
-                        c += (2 * is_lower - 1) * 2;
-                    }
-                    break;
-                case RUN_TYPE_U2L_399_EXT2:
-                    if (!is_lower) {
-                        res[0] = c - code + case_conv_ext[data >> 6];
-                        res[1] = 0x399;
-                        return 2;
-                    } else {
-                        c = c - code + case_conv_ext[data & 0x3f];
-                    }
-                    break;
-                case RUN_TYPE_UF_D20:
-                    if (conv_type == 1)
-                        break;
-                    c = data + (conv_type == 2) * 0x20;
-                    break;
-                case RUN_TYPE_UF_D1_EXT:
-                    if (conv_type == 1)
-                        break;
-                    c = case_conv_ext[data] + (conv_type == 2);
-                    break;
-                case RUN_TYPE_U_EXT:
-                case RUN_TYPE_LF_EXT:
-                    if (is_lower != (type - RUN_TYPE_U_EXT))
-                        break;
-                    c = case_conv_ext[data];
-                    break;
-                case RUN_TYPE_U_EXT2:
-                case RUN_TYPE_L_EXT2:
-                    if (conv_type != (type - RUN_TYPE_U_EXT2))
-                        break;
-                    res[0] = c - code + case_conv_ext[data >> 6];
-                    res[1] = case_conv_ext[data & 0x3f];
-                    return 2;
-                default:
-                case RUN_TYPE_U_EXT3:
-                    if (conv_type != 0)
-                        break;
-                    res[0] = case_conv_ext[data >> 8];
-                    res[1] = case_conv_ext[(data >> 4) & 0xf];
-                    res[2] = case_conv_ext[data & 0xf];
-                    return 3;
-                }
-                break;
-            }
-        }
-    }
-    res[0] = c;
-    return 1;
-}
-
-static uint32_t get_le24(const uint8_t *ptr)
-{
-#if defined(__x86__) || defined(__x86_64__)
-    return *(uint16_t *)ptr | (ptr[2] << 16);
-#else
-    return ptr[0] | (ptr[1] << 8) | (ptr[2] << 16);
-#endif
-}
-
-#define UNICODE_INDEX_BLOCK_LEN 32
-
-/* return -1 if not in table, otherwise the offset in the block */
-static int get_index_pos(uint32_t *pcode, uint32_t c,
-                         const uint8_t *index_table, int index_table_len)
-{
-    uint32_t code, v;
-    int idx_min, idx_max, idx;
-
-    idx_min = 0;
-    v = get_le24(index_table);
-    code = v & ((1 << 21) - 1);
-    if (c < code) {
-        *pcode = 0;
-        return 0;
-    }
-    idx_max = index_table_len - 1;
-    code = get_le24(index_table + idx_max * 3);
-    if (c >= code)
-        return -1;
-    /* invariant: tab[idx_min] <= c < tab2[idx_max] */
-    while ((idx_max - idx_min) > 1) {
-        idx = (idx_max + idx_min) / 2;
-        v = get_le24(index_table + idx * 3);
-        code = v & ((1 << 21) - 1);
-        if (c < code) {
-            idx_max = idx;
-        } else {
-            idx_min = idx;
-        }
-    }
-    v = get_le24(index_table + idx_min * 3);
-    *pcode = v & ((1 << 21) - 1);
-    return (idx_min + 1) * UNICODE_INDEX_BLOCK_LEN + (v >> 21);
-}
-
-static BOOL lre_is_in_table(uint32_t c, const uint8_t *table,
-                            const uint8_t *index_table, int index_table_len)
-{
-    uint32_t code, b, bit;
-    int pos;
-    const uint8_t *p;
-    
-    pos = get_index_pos(&code, c, index_table, index_table_len);
-    if (pos < 0)
-        return FALSE; /* outside the table */
-    p = table + pos;
-    bit = 0;
-    for(;;) {
-        b = *p++;
-        if (b < 64) {
-            code += (b >> 3) + 1;
-            if (c < code)
-                return bit;
-            bit ^= 1;
-            code += (b & 7) + 1;
-        } else if (b >= 0x80) {
-            code += b - 0x80 + 1;
-        } else if (b < 0x60) {
-            code += (((b - 0x40) << 8) | p[0]) + 1;
-            p++;
-        } else {
-            code += (((b - 0x60) << 16) | (p[0] << 8) | p[1]) + 1;
-            p += 2;
-        }
-        if (c < code)
-            return bit;
-        bit ^= 1;
-    }
-}
-
-BOOL lre_is_cased(uint32_t c)
-{
-    uint32_t v, code, len;
-    int idx, idx_min, idx_max;
-        
-    idx_min = 0;
-    idx_max = countof(case_conv_table1) - 1;
-    while (idx_min <= idx_max) {
-        idx = (unsigned)(idx_max + idx_min) / 2;
-        v = case_conv_table1[idx];
-        code = v >> (32 - 17);
-        len = (v >> (32 - 17 - 7)) & 0x7f;
-        if (c < code) {
-            idx_max = idx - 1;
-        } else if (c >= code + len) {
-            idx_min = idx + 1;
-        } else {
-            return TRUE;
-        }
-    }
-    return lre_is_in_table(c, unicode_prop_Cased1_table,
-                           unicode_prop_Cased1_index,
-                           sizeof(unicode_prop_Cased1_index) / 3);
-}
-
-BOOL lre_is_case_ignorable(uint32_t c)
-{
-    return lre_is_in_table(c, unicode_prop_Case_Ignorable_table,
-                           unicode_prop_Case_Ignorable_index,
-                           sizeof(unicode_prop_Case_Ignorable_index) / 3);
-}
-
-/* character range */
-
-static __attribute__((unused)) void cr_dump(CharRange *cr)
-{
-    int i;
-    for(i = 0; i < cr->len; i++)
-        printf("%d: 0x%04x\n", i, cr->points[i]);
-}
-
-static void *cr_default_realloc(void *opaque, void *ptr, size_t size)
-{
-    return realloc(ptr, size);
-}
-
-void cr_init(CharRange *cr, void *mem_opaque, DynBufReallocFunc *realloc_func)
-{
-    cr->len = cr->size = 0;
-    cr->points = NULL;
-    cr->mem_opaque = mem_opaque;
-    cr->realloc_func = realloc_func ? realloc_func : cr_default_realloc;
-}
-
-void cr_free(CharRange *cr)
-{
-    cr->realloc_func(cr->mem_opaque, cr->points, 0);
-}
-
-int cr_realloc(CharRange *cr, int size)
-{
-    int new_size;
-    uint32_t *new_buf;
-    
-    if (size > cr->size) {
-        new_size = max_int(size, cr->size * 3 / 2);
-        new_buf = cr->realloc_func(cr->mem_opaque, cr->points,
-                                   new_size * sizeof(cr->points[0]));
-        if (!new_buf)
-            return -1;
-        cr->points = new_buf;
-        cr->size = new_size;
-    }
-    return 0;
-}
-
-int cr_copy(CharRange *cr, const CharRange *cr1)
-{
-    if (cr_realloc(cr, cr1->len))
-        return -1;
-    memcpy(cr->points, cr1->points, sizeof(cr->points[0]) * cr1->len);
-    cr->len = cr1->len;
-    return 0;
-}
-
-/* merge consecutive intervals and remove empty intervals */
-static void cr_compress(CharRange *cr)
-{
-    int i, j, k, len;
-    uint32_t *pt;
-    
-    pt = cr->points;
-    len = cr->len;
-    i = 0;
-    j = 0;
-    k = 0;
-    while ((i + 1) < len) {
-        if (pt[i] == pt[i + 1]) {
-            /* empty interval */
-            i += 2;
-        } else {
-            j = i;
-            while ((j + 3) < len && pt[j + 1] == pt[j + 2])
-                j += 2;
-            /* just copy */
-            pt[k] = pt[i];
-            pt[k + 1] = pt[j + 1];
-            k += 2;
-            i = j + 2;
-        }
-    }
-    cr->len = k;
-}
-
-/* union or intersection */
-int cr_op(CharRange *cr, const uint32_t *a_pt, int a_len,
-          const uint32_t *b_pt, int b_len, int op)
-{
-    int a_idx, b_idx, is_in;
-    uint32_t v;
-    
-    a_idx = 0;
-    b_idx = 0;
-    for(;;) {
-        /* get one more point from a or b in increasing order */
-        if (a_idx < a_len && b_idx < b_len) {
-            if (a_pt[a_idx] < b_pt[b_idx]) {
-                goto a_add;
-            } else if (a_pt[a_idx] == b_pt[b_idx]) {
-                v = a_pt[a_idx];
-                a_idx++;
-                b_idx++;
-            } else {
-                goto b_add;
-            }
-        } else if (a_idx < a_len) {
-        a_add:
-            v = a_pt[a_idx++];
-        } else if (b_idx < b_len) {
-        b_add:
-            v = b_pt[b_idx++];
-        } else {
-            break;
-        }
-        /* add the point if the in/out status changes */
-        switch(op) {
-        case CR_OP_UNION:
-            is_in = (a_idx & 1) | (b_idx & 1);
-            break;
-        case CR_OP_INTER:
-            is_in = (a_idx & 1) & (b_idx & 1);
-            break;
-        case CR_OP_XOR:
-            is_in = (a_idx & 1) ^ (b_idx & 1);
-            break;
-        default:
-            abort();
-        }
-        if (is_in != (cr->len & 1)) {
-            if (cr_add_point(cr, v))
-                return -1;
-        }
-    }
-    cr_compress(cr);
-    return 0;
-}
-
-int cr_union1(CharRange *cr, const uint32_t *b_pt, int b_len)
-{
-    CharRange a = *cr;
-    int ret;
-    cr->len = 0;
-    cr->size = 0;
-    cr->points = NULL;
-    ret = cr_op(cr, a.points, a.len, b_pt, b_len, CR_OP_UNION);
-    cr_free(&a);
-    return ret;
-}
-
-int cr_invert(CharRange *cr)
-{
-    int len;
-    len = cr->len;
-    if (cr_realloc(cr, len + 2))
-        return -1;
-    memmove(cr->points + 1, cr->points, len * sizeof(cr->points[0]));
-    cr->points[0] = 0;
-    cr->points[len + 1] = UINT32_MAX;
-    cr->len = len + 2;
-    cr_compress(cr);
-    return 0;
-}
-
-#ifdef CONFIG_ALL_UNICODE
-
-BOOL lre_is_id_start(uint32_t c)
-{
-    return lre_is_in_table(c, unicode_prop_ID_Start_table,
-                           unicode_prop_ID_Start_index,
-                           sizeof(unicode_prop_ID_Start_index) / 3);
-}
-
-BOOL lre_is_id_continue(uint32_t c)
-{
-    return lre_is_id_start(c) ||
-        lre_is_in_table(c, unicode_prop_ID_Continue1_table,
-                        unicode_prop_ID_Continue1_index,
-                        sizeof(unicode_prop_ID_Continue1_index) / 3);
-}
-
-#define UNICODE_DECOMP_LEN_MAX 18
-
-typedef enum {
-    DECOMP_TYPE_C1, /* 16 bit char */
-    DECOMP_TYPE_L1, /* 16 bit char table */
-    DECOMP_TYPE_L2,
-    DECOMP_TYPE_L3,
-    DECOMP_TYPE_L4,
-    DECOMP_TYPE_L5, /* XXX: not used */
-    DECOMP_TYPE_L6, /* XXX: could remove */
-    DECOMP_TYPE_L7, /* XXX: could remove */
-    DECOMP_TYPE_LL1, /* 18 bit char table */
-    DECOMP_TYPE_LL2,
-    DECOMP_TYPE_S1, /* 8 bit char table */
-    DECOMP_TYPE_S2,
-    DECOMP_TYPE_S3,
-    DECOMP_TYPE_S4,
-    DECOMP_TYPE_S5,
-    DECOMP_TYPE_I1, /* increment 16 bit char value */
-    DECOMP_TYPE_I2_0,
-    DECOMP_TYPE_I2_1,
-    DECOMP_TYPE_I3_1,
-    DECOMP_TYPE_I3_2,
-    DECOMP_TYPE_I4_1,
-    DECOMP_TYPE_I4_2,
-    DECOMP_TYPE_B1, /* 16 bit base + 8 bit offset */
-    DECOMP_TYPE_B2,
-    DECOMP_TYPE_B3,
-    DECOMP_TYPE_B4,
-    DECOMP_TYPE_B5,
-    DECOMP_TYPE_B6,
-    DECOMP_TYPE_B7,
-    DECOMP_TYPE_B8,
-    DECOMP_TYPE_B18,
-    DECOMP_TYPE_LS2,
-    DECOMP_TYPE_PAT3,
-    DECOMP_TYPE_S2_UL,
-    DECOMP_TYPE_LS2_UL,
-} DecompTypeEnum;
-
-static uint32_t unicode_get_short_code(uint32_t c)
-{
-    static const uint16_t unicode_short_table[2] = { 0x2044, 0x2215 };
-
-    if (c < 0x80)
-        return c;
-    else if (c < 0x80 + 0x50)
-        return c - 0x80 + 0x300;
-    else
-        return unicode_short_table[c - 0x80 - 0x50];
-}
-
-static uint32_t unicode_get_lower_simple(uint32_t c)
-{
-    if (c < 0x100 || (c >= 0x410 && c <= 0x42f))
-        c += 0x20;
-    else
-        c++;
-    return c;
-}
-
-static uint16_t unicode_get16(const uint8_t *p)
-{
-    return p[0] | (p[1] << 8);
-}
-
-static int unicode_decomp_entry(uint32_t *res, uint32_t c,
-                                int idx, uint32_t code, uint32_t len,
-                                uint32_t type)
-{
-    uint32_t c1;
-    int l, i, p;
-    const uint8_t *d;
-
-    if (type == DECOMP_TYPE_C1) {
-        res[0] = unicode_decomp_table2[idx];
-        return 1;
-    } else {
-        d = unicode_decomp_data + unicode_decomp_table2[idx];
-        switch(type) {
-        case DECOMP_TYPE_L1 ... DECOMP_TYPE_L7:
-            l = type - DECOMP_TYPE_L1 + 1;
-            d += (c - code) * l * 2;
-            for(i = 0; i < l; i++) {
-                if ((res[i] = unicode_get16(d + 2 * i)) == 0)
-                    return 0;
-            }
-            return l;
-        case DECOMP_TYPE_LL1 ... DECOMP_TYPE_LL2:
-            {
-                uint32_t k, p;
-                l = type - DECOMP_TYPE_LL1 + 1;
-                k = (c - code) * l;
-                p = len * l * 2;
-                for(i = 0; i < l; i++) {
-                    c1 = unicode_get16(d + 2 * k) |
-                        (((d[p + (k / 4)] >> ((k % 4) * 2)) & 3) << 16);
-                    if (!c1)
-                        return 0;
-                    res[i] = c1;
-                    k++;
-                }
-            }
-            return l;
-        case DECOMP_TYPE_S1 ... DECOMP_TYPE_S5:
-            l = type - DECOMP_TYPE_S1 + 1;
-            d += (c - code) * l;
-            for(i = 0; i < l; i++) {
-                if ((res[i] = unicode_get_short_code(d[i])) == 0)
-                    return 0;
-            }
-            return l;
-        case DECOMP_TYPE_I1:
-            l = 1;
-            p = 0;
-            goto decomp_type_i;
-        case DECOMP_TYPE_I2_0:
-        case DECOMP_TYPE_I2_1:
-        case DECOMP_TYPE_I3_1:
-        case DECOMP_TYPE_I3_2:
-        case DECOMP_TYPE_I4_1:
-        case DECOMP_TYPE_I4_2:
-            l = 2 + ((type - DECOMP_TYPE_I2_0) >> 1);
-            p = ((type - DECOMP_TYPE_I2_0) & 1) + (l > 2);
-        decomp_type_i:
-            for(i = 0; i < l; i++) {
-                c1 = unicode_get16(d + 2 * i);
-                if (i == p)
-                    c1 += c - code;
-                res[i] = c1;
-            }
-            return l;
-        case DECOMP_TYPE_B18:
-            l = 18;
-            goto decomp_type_b;
-        case DECOMP_TYPE_B1 ... DECOMP_TYPE_B8:
-            l = type - DECOMP_TYPE_B1 + 1;
-        decomp_type_b:
-            {
-                uint32_t c_min;
-                c_min = unicode_get16(d);
-                d += 2 + (c - code) * l;
-                for(i = 0; i < l; i++) {
-                    c1 = d[i];
-                    if (c1 == 0xff)
-                        c1 = 0x20;
-                    else
-                        c1 += c_min;
-                    res[i] = c1;
-                }
-            }
-            return l;
-        case DECOMP_TYPE_LS2:
-            d += (c - code) * 3;
-            if (!(res[0] = unicode_get16(d)))
-                return 0;
-            res[1] = unicode_get_short_code(d[2]);
-            return 2;
-        case DECOMP_TYPE_PAT3:
-            res[0] = unicode_get16(d);
-            res[2] = unicode_get16(d + 2);
-            d += 4 + (c - code) * 2;
-            res[1] = unicode_get16(d);
-            return 3;
-        case DECOMP_TYPE_S2_UL:
-        case DECOMP_TYPE_LS2_UL:
-            c1 = c - code;
-            if (type == DECOMP_TYPE_S2_UL) {
-                d += c1 & ~1;
-                c = unicode_get_short_code(*d);
-                d++;
-            } else {
-                d += (c1 >> 1) * 3;
-                c = unicode_get16(d);
-                d += 2;
-            }
-            if (c1 & 1)
-                c = unicode_get_lower_simple(c);
-            res[0] = c;
-            res[1] = unicode_get_short_code(*d);
-            return 2;
-        }
-    }
-    return 0;
-}
-
-
-/* return the length of the decomposition (length <=
-   UNICODE_DECOMP_LEN_MAX) or 0 if no decomposition */
-static int unicode_decomp_char(uint32_t *res, uint32_t c, BOOL is_compat1)
-{
-    uint32_t v, type, is_compat, code, len;
-    int idx_min, idx_max, idx;
-    
-    idx_min = 0;
-    idx_max = countof(unicode_decomp_table1) - 1;
-    while (idx_min <= idx_max) {
-        idx = (idx_max + idx_min) / 2;
-        v = unicode_decomp_table1[idx];
-        code = v >> (32 - 18);
-        len = (v >> (32 - 18 - 7)) & 0x7f;
-        //        printf("idx=%d code=%05x len=%d\n", idx, code, len);
-        if (c < code) {
-            idx_max = idx - 1;
-        } else if (c >= code + len) {
-            idx_min = idx + 1;
-        } else {
-            is_compat = v & 1;
-            if (is_compat1 < is_compat)
-                break;
-            type = (v >> (32 - 18 - 7 - 6)) & 0x3f;
-            return unicode_decomp_entry(res, c, idx, code, len, type);
-        }
-    }
-    return 0;
-}
-
-/* return 0 if no pair found */
-static int unicode_compose_pair(uint32_t c0, uint32_t c1)
-{
-    uint32_t code, len, type, v, idx1, d_idx, d_offset, ch;
-    int idx_min, idx_max, idx, d;
-    uint32_t pair[2];
-    
-    idx_min = 0;
-    idx_max = countof(unicode_comp_table) - 1;
-    while (idx_min <= idx_max) {
-        idx = (idx_max + idx_min) / 2;
-        idx1 = unicode_comp_table[idx];
-
-        /* idx1 represent an entry of the decomposition table */
-        d_idx = idx1 >> 6;
-        d_offset = idx1 & 0x3f;
-        v = unicode_decomp_table1[d_idx];
-        code = v >> (32 - 18);
-        len = (v >> (32 - 18 - 7)) & 0x7f;
-        type = (v >> (32 - 18 - 7 - 6)) & 0x3f;
-        ch = code + d_offset;
-        unicode_decomp_entry(pair, ch, d_idx, code, len, type);
-        d = c0 - pair[0];
-        if (d == 0)
-            d = c1 - pair[1];
-        if (d < 0) {
-            idx_max = idx - 1;
-        } else if (d > 0) {
-            idx_min = idx + 1;
-        } else {
-            return ch;
-        }
-    }
-    return 0;
-}
-
-/* return the combining class of character c (between 0 and 255) */
-static int unicode_get_cc(uint32_t c)
-{
-    uint32_t code, n, type, cc, c1, b;
-    int pos;
-    const uint8_t *p;
-    
-    pos = get_index_pos(&code, c,
-                        unicode_cc_index, sizeof(unicode_cc_index) / 3);
-    if (pos < 0)
-        return 0;
-    p = unicode_cc_table + pos;
-    for(;;) {
-        b = *p++;
-        type = b >> 6;
-        n = b & 0x3f;
-        if (n < 48) {
-        } else if (n < 56) {
-            n = (n - 48) << 8;
-            n |= *p++;
-            n += 48;
-        } else {
-            n = (n - 56) << 8;
-            n |= *p++ << 8;
-            n |= *p++;
-            n += 48 + (1 << 11);
-        }
-        if (type <= 1)
-            p++;
-        c1 = code + n + 1;
-        if (c < c1) {
-            switch(type) {
-            case 0:
-                cc = p[-1];
-                break;
-            case 1:
-                cc = p[-1] + c - code;
-                break;
-            case 2:
-                cc = 0;
-                break;
-            default:
-            case 3:
-                cc = 230;
-                break;
-            }
-            return cc;
-        }
-        code = c1;
-    }
-}
-
-static void sort_cc(int *buf, int len)
-{
-    int i, j, k, cc, cc1, start, ch1;
-    
-    for(i = 0; i < len; i++) {
-        cc = unicode_get_cc(buf[i]);
-        if (cc != 0) {
-            start = i;
-            j = i + 1;
-            while (j < len) {
-                ch1 = buf[j];
-                cc1 = unicode_get_cc(ch1);
-                if (cc1 == 0)
-                    break;
-                k = j - 1;
-                while (k >= start) {
-                    if (unicode_get_cc(buf[k]) <= cc1)
-                        break;
-                    buf[k + 1] = buf[k];
-                    k--;
-                }
-                buf[k + 1] = ch1;
-                j++;
-            }
-#if 0
-            printf("cc:");
-            for(k = start; k < j; k++) {
-                printf(" %3d", unicode_get_cc(buf[k]));
-            }
-            printf("\n");
-#endif
-            i = j;
-        }
-    }
-}
-
-static void to_nfd_rec(DynBuf *dbuf,
-                       const int *src, int src_len, int is_compat)
-{
-    uint32_t c, v;
-    int i, l;
-    uint32_t res[UNICODE_DECOMP_LEN_MAX];
-    
-    for(i = 0; i < src_len; i++) {
-        c = src[i];
-        if (c >= 0xac00 && c < 0xd7a4) {
-            /* Hangul decomposition */
-            c -= 0xac00;
-            dbuf_put_u32(dbuf, 0x1100 + c / 588);
-            dbuf_put_u32(dbuf, 0x1161 + (c % 588) / 28);
-            v = c % 28;
-            if (v != 0)
-                dbuf_put_u32(dbuf, 0x11a7 + v);
-        } else {
-            l = unicode_decomp_char(res, c, is_compat);
-            if (l) {
-                to_nfd_rec(dbuf, (int *)res, l, is_compat);
-            } else {
-                dbuf_put_u32(dbuf, c);
-            }
-        }
-    }
-}
-
-/* return 0 if not found */
-static int compose_pair(uint32_t c0, uint32_t c1)
-{
-    /* Hangul composition */
-    if (c0 >= 0x1100 && c0 < 0x1100 + 19 &&
-        c1 >= 0x1161 && c1 < 0x1161 + 21) {
-        return 0xac00 + (c0 - 0x1100) * 588 + (c1 - 0x1161) * 28;
-    } else if (c0 >= 0xac00 && c0 < 0xac00 + 11172 &&
-               (c0 - 0xac00) % 28 == 0 &&
-               c1 >= 0x11a7 && c1 < 0x11a7 + 28) {
-        return c0 + c1 - 0x11a7;
-    } else {
-        return unicode_compose_pair(c0, c1);
-    }
-}
-
-int unicode_normalize(uint32_t **pdst, const uint32_t *src, int src_len,
-                      UnicodeNormalizationEnum n_type,
-                      void *opaque, DynBufReallocFunc *realloc_func)
-{
-    int *buf, buf_len, i, p, starter_pos, cc, last_cc, out_len;
-    BOOL is_compat;
-    DynBuf dbuf_s, *dbuf = &dbuf_s;
-    
-    is_compat = n_type >> 1;
-
-    dbuf_init2(dbuf, opaque, realloc_func);
-    if (dbuf_realloc(dbuf, sizeof(int) * src_len))
-        goto fail;
-
-    /* common case: latin1 is unaffected by NFC */
-    if (n_type == UNICODE_NFC) {
-        for(i = 0; i < src_len; i++) {
-            if (src[i] >= 0x100)
-                goto not_latin1;
-        }
-        buf = (int *)dbuf->buf;
-        memcpy(buf, src, src_len * sizeof(int));
-        *pdst = (uint32_t *)buf;
-        return src_len;
-    not_latin1: ;
-    }
-
-    to_nfd_rec(dbuf, (const int *)src, src_len, is_compat);
-    if (dbuf_error(dbuf)) {
-    fail:
-        *pdst = NULL;
-        return -1;
-    }
-    buf = (int *)dbuf->buf;
-    buf_len = dbuf->size / sizeof(int);
-        
-    sort_cc(buf, buf_len);
-    
-    if (buf_len <= 1 || (n_type & 1) != 0) {
-        /* NFD / NFKD */
-        *pdst = (uint32_t *)buf;
-        return buf_len;
-    }
-    
-    i = 1;
-    out_len = 1;
-    while (i < buf_len) {
-        /* find the starter character and test if it is blocked from
-           the character at 'i' */
-        last_cc = unicode_get_cc(buf[i]);
-        starter_pos = out_len - 1;
-        while (starter_pos >= 0) {
-            cc = unicode_get_cc(buf[starter_pos]);
-            if (cc == 0)
-                break;
-            if (cc >= last_cc)
-                goto next;
-            last_cc = 256;
-            starter_pos--;
-        }
-        if (starter_pos >= 0 &&
-            (p = compose_pair(buf[starter_pos], buf[i])) != 0) {
-            buf[starter_pos] = p;
-            i++;
-        } else {
-        next:
-            buf[out_len++] = buf[i++];
-        }
-    }
-    *pdst = (uint32_t *)buf;
-    return out_len;
-}
-
-/* char ranges for various unicode properties */
-
-static int unicode_find_name(const char *name_table, const char *name)
-{
-    const char *p, *r;
-    int pos;
-    size_t name_len, len;
-    
-    p = name_table;
-    pos = 0;
-    name_len = strlen(name);
-    while (*p) {
-        for(;;) {
-            r = strchr(p, ',');
-            if (!r)
-                len = strlen(p);
-            else
-                len = r - p;
-            if (len == name_len && !memcmp(p, name, name_len))
-                return pos;
-            p += len + 1;
-            if (!r)
-                break;
-        }
-        pos++;
-    }
-    return -1;
-}
-
-/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2
-   if not found */
-int unicode_script(CharRange *cr,
-                   const char *script_name, BOOL is_ext)
-{
-    int script_idx;
-    const uint8_t *p, *p_end;
-    uint32_t c, c1, b, n, v, v_len, i, type;
-    CharRange cr1_s, *cr1;
-    CharRange cr2_s, *cr2 = &cr2_s;
-    BOOL is_common;
-    
-    script_idx = unicode_find_name(unicode_script_name_table, script_name);
-    if (script_idx < 0)
-        return -2;
-    /* Note: we remove the "Unknown" Script */
-    script_idx += UNICODE_SCRIPT_Unknown + 1;
-        
-    is_common = (script_idx == UNICODE_SCRIPT_Common ||
-                 script_idx == UNICODE_SCRIPT_Inherited);
-    if (is_ext) {
-        cr1 = &cr1_s;
-        cr_init(cr1, cr->mem_opaque, cr->realloc_func);
-        cr_init(cr2, cr->mem_opaque, cr->realloc_func);
-    } else {
-        cr1 = cr;
-    }
-
-    p = unicode_script_table;
-    p_end = unicode_script_table + countof(unicode_script_table);
-    c = 0;
-    while (p < p_end) {
-        b = *p++;
-        type = b >> 7;
-        n = b & 0x7f;
-        if (n < 96) {
-        } else if (n < 112) {
-            n = (n - 96) << 8;
-            n |= *p++;
-            n += 96;
-        } else {
-            n = (n - 112) << 16;
-            n |= *p++ << 8;
-            n |= *p++;
-            n += 96 + (1 << 12);
-        }
-        if (type == 0)
-            v = 0;
-        else
-            v = *p++;
-        c1 = c + n + 1;
-        if (v == script_idx) {
-            if (cr_add_interval(cr1, c, c1))
-                goto fail;
-        }
-        c = c1;
-    }
-
-    if (is_ext) {
-        /* add the script extensions */
-        p = unicode_script_ext_table;
-        p_end = unicode_script_ext_table + countof(unicode_script_ext_table);
-        c = 0;
-        while (p < p_end) {
-            b = *p++;
-            if (b < 128) {
-                n = b;
-            } else if (b < 128 + 64) {
-                n = (b - 128) << 8;
-                n |= *p++;
-                n += 128;
-            } else {
-                n = (b - 128 - 64) << 16;
-                n |= *p++ << 8;
-                n |= *p++;
-                n += 128 + (1 << 14);
-            }
-            c1 = c + n + 1;
-            v_len = *p++;
-            if (is_common) {
-                if (v_len != 0) {
-                    if (cr_add_interval(cr2, c, c1))
-                        goto fail;
-                }
-            } else {
-                for(i = 0; i < v_len; i++) {
-                    if (p[i] == script_idx) {
-                        if (cr_add_interval(cr2, c, c1))
-                            goto fail;
-                        break;
-                    }
-                }
-            }
-            p += v_len;
-            c = c1;
-        }
-        if (is_common) {
-            /* remove all the characters with script extensions */
-            if (cr_invert(cr2))
-                goto fail;
-            if (cr_op(cr, cr1->points, cr1->len, cr2->points, cr2->len,
-                      CR_OP_INTER))
-                goto fail;
-        } else {
-            if (cr_op(cr, cr1->points, cr1->len, cr2->points, cr2->len,
-                      CR_OP_UNION))
-                goto fail;
-        }
-        cr_free(cr1);
-        cr_free(cr2);
-    }
-    return 0;
- fail:
-    if (is_ext) {
-        cr_free(cr1);
-        cr_free(cr2);
-    }
-    goto fail;
-}
-
-#define M(id) (1U << UNICODE_GC_ ## id)
-
-static int unicode_general_category1(CharRange *cr, uint32_t gc_mask)
-{
-    const uint8_t *p, *p_end;
-    uint32_t c, c0, b, n, v;
-
-    p = unicode_gc_table;
-    p_end = unicode_gc_table + countof(unicode_gc_table);
-    c = 0;
-    while (p < p_end) {
-        b = *p++;
-        n = b >> 5;
-        v = b & 0x1f;
-        if (n == 7) {
-            n = *p++;
-            if (n < 128) {
-                n += 7;
-            } else if (n < 128 + 64) {
-                n = (n - 128) << 8;
-                n |= *p++;
-                n += 7 + 128;
-            } else {
-                n = (n - 128 - 64) << 16;
-                n |= *p++ << 8;
-                n |= *p++;
-                n += 7 + 128 + (1 << 14);
-            }
-        }
-        c0 = c;
-        c += n + 1;
-        if (v == 31) {
-            /* run of Lu / Ll */
-            b = gc_mask & (M(Lu) | M(Ll));
-            if (b != 0) {
-                if (b == (M(Lu) | M(Ll))) {
-                    goto add_range;
-                } else {
-                    c0 += ((gc_mask & M(Ll)) != 0);
-                    for(; c0 < c; c0 += 2) {
-                        if (cr_add_interval(cr, c0, c0 + 1))
-                            return -1;
-                    }
-                }
-            }
-        } else if ((gc_mask >> v) & 1) {
-        add_range:
-            if (cr_add_interval(cr, c0, c))
-                return -1;
-        }
-    }
-    return 0;
-}
-
-static int unicode_prop1(CharRange *cr, int prop_idx)
-{
-    const uint8_t *p, *p_end;
-    uint32_t c, c0, b, bit;
-
-    p = unicode_prop_table[prop_idx];
-    p_end = p + unicode_prop_len_table[prop_idx];
-    c = 0;
-    bit = 0;
-    while (p < p_end) {
-        c0 = c;
-        b = *p++;
-        if (b < 64) {
-            c += (b >> 3) + 1;
-            if (bit)  {
-                if (cr_add_interval(cr, c0, c))
-                    return -1;
-            }
-            bit ^= 1;
-            c0 = c;
-            c += (b & 7) + 1;
-        } else if (b >= 0x80) {
-            c += b - 0x80 + 1;
-        } else if (b < 0x60) {
-            c += (((b - 0x40) << 8) | p[0]) + 1;
-            p++;
-        } else {
-            c += (((b - 0x60) << 16) | (p[0] << 8) | p[1]) + 1;
-            p += 2;
-        }
-        if (bit)  {
-            if (cr_add_interval(cr, c0, c))
-                return -1;
-        }
-        bit ^= 1;
-    }
-    return 0;
-}
-
-#define CASE_U (1 << 0)
-#define CASE_L (1 << 1)
-#define CASE_F (1 << 2)
-
-/* use the case conversion table to generate range of characters.
-   CASE_U: set char if modified by uppercasing,
-   CASE_L: set char if modified by lowercasing,
-   CASE_F: set char if modified by case folding,
- */
-static int unicode_case1(CharRange *cr, int case_mask)
-{
-#define MR(x) (1 << RUN_TYPE_ ## x)
-    const uint32_t tab_run_mask[3] = {
-        MR(U) | MR(UF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(UF_D20) |
-        MR(UF_D1_EXT) | MR(U_EXT) | MR(U_EXT2) | MR(U_EXT3),
-
-        MR(L) | MR(LF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(LF_EXT) | MR(L_EXT2),
-
-        MR(UF) | MR(LF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(LF_EXT) | MR(UF_D20) | MR(UF_D1_EXT) | MR(LF_EXT),
-    };
-#undef MR
-    uint32_t mask, v, code, type, len, i, idx;
-
-    if (case_mask == 0)
-        return 0;
-    mask = 0;
-    for(i = 0; i < 3; i++) {
-        if ((case_mask >> i) & 1)
-            mask |= tab_run_mask[i];
-    }
-    for(idx = 0; idx < countof(case_conv_table1); idx++) {
-        v = case_conv_table1[idx];
-        type = (v >> (32 - 17 - 7 - 4)) & 0xf;
-        code = v >> (32 - 17);
-        len = (v >> (32 - 17 - 7)) & 0x7f;
-        if ((mask >> type) & 1) {
-            //            printf("%d: type=%d %04x %04x\n", idx, type, code, code + len - 1);
-            switch(type) {
-            case RUN_TYPE_UL:
-                if ((case_mask & CASE_U) && (case_mask & (CASE_L | CASE_F)))
-                    goto def_case;
-                code += ((case_mask & CASE_U) != 0);
-                for(i = 0; i < len; i += 2) {
-                    if (cr_add_interval(cr, code + i, code + i + 1))
-                        return -1;
-                }
-                break;
-            case RUN_TYPE_LSU:
-                if ((case_mask & CASE_U) && (case_mask & (CASE_L | CASE_F)))
-                    goto def_case;
-                if (!(case_mask & CASE_U)) {
-                    if (cr_add_interval(cr, code, code + 1))
-                        return -1;
-                }
-                if (cr_add_interval(cr, code + 1, code + 2))
-                    return -1;
-                if (case_mask & CASE_U) {
-                    if (cr_add_interval(cr, code + 2, code + 3))
-                        return -1;
-                }
-                break;
-            default:
-            def_case:
-                if (cr_add_interval(cr, code, code + len))
-                    return -1;
-                break;
-            }
-        }
-    }
-    return 0;
-}
-        
-typedef enum {
-    POP_GC,
-    POP_PROP,
-    POP_CASE,
-    POP_UNION,
-    POP_INTER,
-    POP_XOR,
-    POP_INVERT,
-    POP_END,
-} PropOPEnum;
-
-#define POP_STACK_LEN_MAX 4
-
-static int unicode_prop_ops(CharRange *cr, ...)
-{
-    va_list ap;
-    CharRange stack[POP_STACK_LEN_MAX];
-    int stack_len, op, ret, i;
-    uint32_t a;
-    
-    va_start(ap, cr);
-    stack_len = 0;
-    for(;;) {
-        op = va_arg(ap, int);
-        switch(op) {
-        case POP_GC:
-            assert(stack_len < POP_STACK_LEN_MAX);
-            a = va_arg(ap, int);
-            cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func);
-            if (unicode_general_category1(&stack[stack_len - 1], a))
-                goto fail;
-            break;
-        case POP_PROP:
-            assert(stack_len < POP_STACK_LEN_MAX);
-            a = va_arg(ap, int);
-            cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func);
-            if (unicode_prop1(&stack[stack_len - 1], a))
-                goto fail;
-            break;
-        case POP_CASE:
-            assert(stack_len < POP_STACK_LEN_MAX);
-            a = va_arg(ap, int);
-            cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func);
-            if (unicode_case1(&stack[stack_len - 1], a))
-                goto fail;
-            break;
-        case POP_UNION:
-        case POP_INTER:
-        case POP_XOR:
-            {
-                CharRange *cr1, *cr2, *cr3;
-                assert(stack_len >= 2);
-                assert(stack_len < POP_STACK_LEN_MAX);
-                cr1 = &stack[stack_len - 2];
-                cr2 = &stack[stack_len - 1];
-                cr3 = &stack[stack_len++];
-                cr_init(cr3, cr->mem_opaque, cr->realloc_func);
-                if (cr_op(cr3, cr1->points, cr1->len,
-                          cr2->points, cr2->len, op - POP_UNION + CR_OP_UNION))
-                    goto fail;
-                cr_free(cr1);
-                cr_free(cr2);
-                *cr1 = *cr3;
-                stack_len -= 2;
-            }
-            break;
-        case POP_INVERT:
-            assert(stack_len >= 1);
-            if (cr_invert(&stack[stack_len - 1]))
-                goto fail;
-            break;
-        case POP_END:
-            goto done;
-        default:
-            abort();
-        }
-    }
- done:
-    assert(stack_len == 1);
-    ret = cr_copy(cr, &stack[0]);
-    cr_free(&stack[0]);
-    return ret;
- fail:
-    for(i = 0; i < stack_len; i++)
-        cr_free(&stack[i]);
-    return -1;
-}
-
-static const uint32_t unicode_gc_mask_table[] = {
-    M(Lu) | M(Ll) | M(Lt), /* LC */
-    M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo), /* L */
-    M(Mn) | M(Mc) | M(Me), /* M */
-    M(Nd) | M(Nl) | M(No), /* N */
-    M(Sm) | M(Sc) | M(Sk) | M(So), /* S */
-    M(Pc) | M(Pd) | M(Ps) | M(Pe) | M(Pi) | M(Pf) | M(Po), /* P */
-    M(Zs) | M(Zl) | M(Zp), /* Z */
-    M(Cc) | M(Cf) | M(Cs) | M(Co) | M(Cn), /* C */
-};
-
-/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2
-   if not found */
-int unicode_general_category(CharRange *cr, const char *gc_name)
-{
-    int gc_idx;
-    uint32_t gc_mask;
-    
-    gc_idx = unicode_find_name(unicode_gc_name_table, gc_name);
-    if (gc_idx < 0)
-        return -2;
-    if (gc_idx <= UNICODE_GC_Co) {
-        gc_mask = (uint64_t)1 << gc_idx;
-    } else {
-        gc_mask = unicode_gc_mask_table[gc_idx - UNICODE_GC_LC];
-    }
-    return unicode_general_category1(cr, gc_mask);
-}
-
-
-/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2
-   if not found */
-int unicode_prop(CharRange *cr, const char *prop_name)
-{
-    int prop_idx, ret;
-    
-    prop_idx = unicode_find_name(unicode_prop_name_table, prop_name);
-    if (prop_idx < 0)
-        return -2;
-    prop_idx += UNICODE_PROP_ASCII_Hex_Digit;
-
-    ret = 0;
-    switch(prop_idx) {
-    case UNICODE_PROP_ASCII:
-        if (cr_add_interval(cr, 0x00, 0x7f + 1))
-            return -1;
-        break;
-    case UNICODE_PROP_Any:
-        if (cr_add_interval(cr, 0x00000, 0x10ffff + 1))
-            return -1;
-        break;
-    case UNICODE_PROP_Assigned:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Cn),
-                               POP_INVERT,
-                               POP_END);
-        break;
-    case UNICODE_PROP_Math:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Sm),
-                               POP_PROP, UNICODE_PROP_Other_Math,
-                               POP_UNION,
-                               POP_END);
-        break;
-    case UNICODE_PROP_Lowercase:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Ll),
-                               POP_PROP, UNICODE_PROP_Other_Lowercase,
-                               POP_UNION,
-                               POP_END);
-        break;
-    case UNICODE_PROP_Uppercase:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Lu),
-                               POP_PROP, UNICODE_PROP_Other_Uppercase,
-                               POP_UNION,
-                               POP_END);
-        break;
-    case UNICODE_PROP_Cased:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Lu) | M(Ll) | M(Lt),
-                               POP_PROP, UNICODE_PROP_Other_Uppercase,
-                               POP_UNION,
-                               POP_PROP, UNICODE_PROP_Other_Lowercase,
-                               POP_UNION,
-                               POP_END);
-        break;
-    case UNICODE_PROP_Alphabetic:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl),
-                               POP_PROP, UNICODE_PROP_Other_Uppercase,
-                               POP_UNION,
-                               POP_PROP, UNICODE_PROP_Other_Lowercase,
-                               POP_UNION,
-                               POP_PROP, UNICODE_PROP_Other_Alphabetic,
-                               POP_UNION,
-                               POP_END);
-        break;
-    case UNICODE_PROP_Grapheme_Base:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Cc) | M(Cf) | M(Cs) | M(Co) | M(Cn) | M(Zl) | M(Zp) | M(Me) | M(Mn),
-                               POP_PROP, UNICODE_PROP_Other_Grapheme_Extend,
-                               POP_UNION,
-                               POP_INVERT,
-                               POP_END);
-        break;
-    case UNICODE_PROP_Grapheme_Extend:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Me) | M(Mn),
-                               POP_PROP, UNICODE_PROP_Other_Grapheme_Extend,
-                               POP_UNION,
-                               POP_END);
-        break;
-    case UNICODE_PROP_XID_Start:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl),
-                               POP_PROP, UNICODE_PROP_Other_ID_Start,
-                               POP_UNION,
-                               POP_PROP, UNICODE_PROP_Pattern_Syntax,
-                               POP_PROP, UNICODE_PROP_Pattern_White_Space,
-                               POP_UNION,
-                               POP_PROP, UNICODE_PROP_XID_Start1,
-                               POP_UNION,
-                               POP_INVERT,
-                               POP_INTER,
-                               POP_END);
-        break;
-    case UNICODE_PROP_XID_Continue:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl) |
-                               M(Mn) | M(Mc) | M(Nd) | M(Pc),
-                               POP_PROP, UNICODE_PROP_Other_ID_Start,
-                               POP_UNION,
-                               POP_PROP, UNICODE_PROP_Other_ID_Continue,
-                               POP_UNION,
-                               POP_PROP, UNICODE_PROP_Pattern_Syntax,
-                               POP_PROP, UNICODE_PROP_Pattern_White_Space,
-                               POP_UNION,
-                               POP_PROP, UNICODE_PROP_XID_Continue1,
-                               POP_UNION,
-                               POP_INVERT,
-                               POP_INTER,
-                               POP_END);
-        break;
-    case UNICODE_PROP_Changes_When_Uppercased:
-        ret = unicode_case1(cr, CASE_U);
-        break;
-    case UNICODE_PROP_Changes_When_Lowercased:
-        ret = unicode_case1(cr, CASE_L);
-        break;
-    case UNICODE_PROP_Changes_When_Casemapped:
-        ret = unicode_case1(cr, CASE_U | CASE_L | CASE_F);
-        break;
-    case UNICODE_PROP_Changes_When_Titlecased:
-        ret = unicode_prop_ops(cr,
-                               POP_CASE, CASE_U,
-                               POP_PROP, UNICODE_PROP_Changes_When_Titlecased1,
-                               POP_XOR,
-                               POP_END);
-        break;
-    case UNICODE_PROP_Changes_When_Casefolded:
-        ret = unicode_prop_ops(cr,
-                               POP_CASE, CASE_F,
-                               POP_PROP, UNICODE_PROP_Changes_When_Casefolded1,
-                               POP_XOR,
-                               POP_END);
-        break;
-    case UNICODE_PROP_Changes_When_NFKC_Casefolded:
-        ret = unicode_prop_ops(cr,
-                               POP_CASE, CASE_F,
-                               POP_PROP, UNICODE_PROP_Changes_When_NFKC_Casefolded1,
-                               POP_XOR,
-                               POP_END);
-        break;
-#if 0
-    case UNICODE_PROP_ID_Start:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl),
-                               POP_PROP, UNICODE_PROP_Other_ID_Start,
-                               POP_UNION,
-                               POP_PROP, UNICODE_PROP_Pattern_Syntax,
-                               POP_PROP, UNICODE_PROP_Pattern_White_Space,
-                               POP_UNION,
-                               POP_INVERT,
-                               POP_INTER,
-                               POP_END);
-        break;
-    case UNICODE_PROP_ID_Continue:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl) |
-                               M(Mn) | M(Mc) | M(Nd) | M(Pc),
-                               POP_PROP, UNICODE_PROP_Other_ID_Start,
-                               POP_UNION,
-                               POP_PROP, UNICODE_PROP_Other_ID_Continue,
-                               POP_UNION,
-                               POP_PROP, UNICODE_PROP_Pattern_Syntax,
-                               POP_PROP, UNICODE_PROP_Pattern_White_Space,
-                               POP_UNION,
-                               POP_INVERT,
-                               POP_INTER,
-                               POP_END);
-        break;
-    case UNICODE_PROP_Case_Ignorable:
-        ret = unicode_prop_ops(cr,
-                               POP_GC, M(Mn) | M(Cf) | M(Lm) | M(Sk),
-                               POP_PROP, UNICODE_PROP_Case_Ignorable1,
-                               POP_XOR,
-                               POP_END);
-        break;
-#else
-        /* we use the existing tables */
-    case UNICODE_PROP_ID_Continue:
-        ret = unicode_prop_ops(cr,
-                               POP_PROP, UNICODE_PROP_ID_Start,
-                               POP_PROP, UNICODE_PROP_ID_Continue1,
-                               POP_XOR,
-                               POP_END);
-        break;
-#endif
-    default:
-        if (prop_idx >= countof(unicode_prop_table))
-            return -2;
-        ret = unicode_prop1(cr, prop_idx);
-        break;
-    }
-    return ret;
-}
-
-#endif /* CONFIG_ALL_UNICODE */
diff --git a/third-party/libunicode.h b/third-party/libunicode.h
deleted file mode 100644
index cfa600a..0000000
--- a/third-party/libunicode.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Unicode utilities
- * 
- * Copyright (c) 2017-2018 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#ifndef LIBUNICODE_H
-#define LIBUNICODE_H
-
-#include <inttypes.h>
-
-#define LRE_BOOL  int       /* for documentation purposes */
-
-/* define it to include all the unicode tables (40KB larger) */
-#define CONFIG_ALL_UNICODE
-
-#define LRE_CC_RES_LEN_MAX 3
-
-typedef enum {
-    UNICODE_NFC,
-    UNICODE_NFD,
-    UNICODE_NFKC,
-    UNICODE_NFKD,
-} UnicodeNormalizationEnum;
-
-int lre_case_conv(uint32_t *res, uint32_t c, int conv_type);
-LRE_BOOL lre_is_cased(uint32_t c);
-LRE_BOOL lre_is_case_ignorable(uint32_t c);
-
-/* char ranges */
-
-typedef struct {
-    int len; /* in points, always even */
-    int size;
-    uint32_t *points; /* points sorted by increasing value */
-    void *mem_opaque;
-    void *(*realloc_func)(void *opaque, void *ptr, size_t size);
-} CharRange;
-
-typedef enum {
-    CR_OP_UNION,
-    CR_OP_INTER,
-    CR_OP_XOR,
-} CharRangeOpEnum;
-
-void cr_init(CharRange *cr, void *mem_opaque, void *(*realloc_func)(void *opaque, void *ptr, size_t size));
-void cr_free(CharRange *cr);
-int cr_realloc(CharRange *cr, int size);
-int cr_copy(CharRange *cr, const CharRange *cr1);
-
-static inline int cr_add_point(CharRange *cr, uint32_t v)
-{
-    if (cr->len >= cr->size) {
-        if (cr_realloc(cr, cr->len + 1))
-            return -1;
-    }
-    cr->points[cr->len++] = v;
-    return 0;
-}
-
-static inline int cr_add_interval(CharRange *cr, uint32_t c1, uint32_t c2)
-{
-    if ((cr->len + 2) > cr->size) {
-        if (cr_realloc(cr, cr->len + 2))
-            return -1;
-    }
-    cr->points[cr->len++] = c1;
-    cr->points[cr->len++] = c2;
-    return 0;
-}
-
-int cr_union1(CharRange *cr, const uint32_t *b_pt, int b_len);
-
-static inline int cr_union_interval(CharRange *cr, uint32_t c1, uint32_t c2)
-{
-    uint32_t b_pt[2];
-    b_pt[0] = c1;
-    b_pt[1] = c2 + 1;
-    return cr_union1(cr, b_pt, 2);
-}
-
-int cr_op(CharRange *cr, const uint32_t *a_pt, int a_len,
-          const uint32_t *b_pt, int b_len, int op);
-
-int cr_invert(CharRange *cr);
-
-#ifdef CONFIG_ALL_UNICODE
-
-LRE_BOOL lre_is_id_start(uint32_t c);
-LRE_BOOL lre_is_id_continue(uint32_t c);
-
-int unicode_normalize(uint32_t **pdst, const uint32_t *src, int src_len,
-                      UnicodeNormalizationEnum n_type,
-                      void *opaque, void *(*realloc_func)(void *opaque, void *ptr, size_t size));
-
-/* Unicode character range functions */
-
-int unicode_script(CharRange *cr,
-                   const char *script_name, LRE_BOOL is_ext);
-int unicode_general_category(CharRange *cr, const char *gc_name);
-int unicode_prop(CharRange *cr, const char *prop_name);
-
-#endif /* CONFIG_ALL_UNICODE */
-
-#undef LRE_BOOL
-
-#endif /* LIBUNICODE_H */
diff --git a/third-party/list.h b/third-party/list.h
deleted file mode 100644
index 0a1bc5a..0000000
--- a/third-party/list.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Linux klist like system
- * 
- * Copyright (c) 2016-2017 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#ifndef LIST_H
-#define LIST_H
-
-#ifndef NULL
-#include <stddef.h>
-#endif
-
-struct list_head {
-    struct list_head *prev;
-    struct list_head *next;
-};
-
-#define LIST_HEAD_INIT(el) { &(el), &(el) }
-
-/* return the pointer of type 'type *' containing 'el' as field 'member' */
-#define list_entry(el, type, member) \
-    ((type *)((uint8_t *)(el) - offsetof(type, member)))
-
-static inline void init_list_head(struct list_head *head)
-{
-    head->prev = head;
-    head->next = head;
-}
-
-/* insert 'el' between 'prev' and 'next' */
-static inline void __list_add(struct list_head *el, 
-                              struct list_head *prev, struct list_head *next)
-{
-    prev->next = el;
-    el->prev = prev;
-    el->next = next;
-    next->prev = el;
-}
-
-/* add 'el' at the head of the list 'head' (= after element head) */
-static inline void list_add(struct list_head *el, struct list_head *head)
-{
-    __list_add(el, head, head->next);
-}
-
-/* add 'el' at the end of the list 'head' (= before element head) */
-static inline void list_add_tail(struct list_head *el, struct list_head *head)
-{
-    __list_add(el, head->prev, head);
-}
-
-static inline void list_del(struct list_head *el)
-{
-    struct list_head *prev, *next;
-    prev = el->prev;
-    next = el->next;
-    prev->next = next;
-    next->prev = prev;
-    el->prev = NULL; /* fail safe */
-    el->next = NULL; /* fail safe */
-}
-
-static inline int list_empty(struct list_head *el)
-{
-    return el->next == el;
-}
-
-#define list_for_each(el, head) \
-  for(el = (head)->next; el != (head); el = el->next)
-
-#define list_for_each_safe(el, el1, head)                \
-    for(el = (head)->next, el1 = el->next; el != (head); \
-        el = el1, el1 = el->next)
-
-#define list_for_each_prev(el, head) \
-  for(el = (head)->prev; el != (head); el = el->prev)
-
-#define list_for_each_prev_safe(el, el1, head)           \
-    for(el = (head)->prev, el1 = el->prev; el != (head); \
-        el = el1, el1 = el->prev)
-
-#endif /* LIST_H */
diff --git a/third-party/quickjs-atom.h b/third-party/quickjs-atom.h
deleted file mode 100644
index 6bbc3b2..0000000
--- a/third-party/quickjs-atom.h
+++ /dev/null
@@ -1,282 +0,0 @@
-/*
- * QuickJS atom definitions
- * 
- * Copyright (c) 2017-2018 Fabrice Bellard
- * Copyright (c) 2017-2018 Charlie Gordon
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifdef DEF
-
-/* Note: first atoms are considered as keywords in the parser */
-DEF(null, "null") /* must be first */
-DEF(false, "false")
-DEF(true, "true")
-DEF(if, "if")
-DEF(else, "else")
-DEF(return, "return")
-DEF(var, "var")
-DEF(this, "this")
-DEF(delete, "delete")
-DEF(void, "void")
-DEF(typeof, "typeof")
-DEF(new, "new")
-DEF(in, "in")
-DEF(instanceof, "instanceof")
-DEF(do, "do")
-DEF(while, "while")
-DEF(for, "for")
-DEF(break, "break")
-DEF(continue, "continue")
-DEF(switch, "switch")
-DEF(case, "case")
-DEF(default, "default")
-DEF(throw, "throw")
-DEF(try, "try")
-DEF(catch, "catch")
-DEF(finally, "finally")
-DEF(function, "function")
-DEF(debugger, "debugger")
-DEF(with, "with")
-/* FutureReservedWord */
-DEF(class, "class")
-DEF(const, "const")
-DEF(enum, "enum")
-DEF(export, "export")
-DEF(extends, "extends")
-DEF(import, "import")
-DEF(super, "super")
-/* FutureReservedWords when parsing strict mode code */
-DEF(implements, "implements")
-DEF(interface, "interface")
-DEF(let, "let")
-DEF(package, "package")
-DEF(private, "private")
-DEF(protected, "protected")
-DEF(public, "public")
-DEF(static, "static")
-DEF(yield, "yield")
-DEF(await, "await")
-
-/* empty string */
-DEF(empty_string, "")
-/* identifiers */
-DEF(length, "length")
-DEF(fileName, "fileName")
-DEF(lineNumber, "lineNumber")
-DEF(message, "message")
-DEF(stack, "stack")
-DEF(name, "name")
-DEF(toString, "toString")
-DEF(toLocaleString, "toLocaleString")
-DEF(valueOf, "valueOf")
-DEF(eval, "eval")
-DEF(prototype, "prototype")
-DEF(constructor, "constructor")
-DEF(configurable, "configurable")
-DEF(writable, "writable")
-DEF(enumerable, "enumerable")
-DEF(value, "value")
-DEF(get, "get")
-DEF(set, "set")
-DEF(of, "of")
-DEF(__proto__, "__proto__")
-DEF(undefined, "undefined")
-DEF(number, "number")
-DEF(boolean, "boolean")
-DEF(string, "string")
-DEF(object, "object")
-DEF(symbol, "symbol")
-DEF(integer, "integer")
-DEF(unknown, "unknown")
-DEF(arguments, "arguments")
-DEF(callee, "callee")
-DEF(caller, "caller")
-DEF(_eval_, "<eval>")
-DEF(_ret_, "<ret>")
-DEF(_var_, "<var>")
-DEF(_with_, "<with>")
-DEF(lastIndex, "lastIndex")
-DEF(target, "target")
-DEF(index, "index")
-DEF(input, "input")
-DEF(defineProperties, "defineProperties")
-DEF(apply, "apply")
-DEF(join, "join")
-DEF(concat, "concat")
-DEF(split, "split")
-DEF(construct, "construct")
-DEF(getPrototypeOf, "getPrototypeOf")
-DEF(setPrototypeOf, "setPrototypeOf")
-DEF(isExtensible, "isExtensible")
-DEF(preventExtensions, "preventExtensions")
-DEF(has, "has")
-DEF(deleteProperty, "deleteProperty")
-DEF(defineProperty, "defineProperty")
-DEF(getOwnPropertyDescriptor, "getOwnPropertyDescriptor")
-DEF(ownKeys, "ownKeys")
-DEF(add, "add")
-DEF(done, "done")
-DEF(next, "next")
-DEF(values, "values")
-DEF(source, "source")
-DEF(flags, "flags")
-DEF(global, "global")
-DEF(unicode, "unicode")
-DEF(raw, "raw")
-DEF(new_target, "new.target")
-DEF(this_active_func, "this.active_func")
-DEF(home_object, "<home_object>")
-DEF(computed_field, "<computed_field>")
-DEF(static_computed_field, "<static_computed_field>") /* must come after computed_fields */
-DEF(class_fields_init, "<class_fields_init>")
-DEF(brand, "<brand>")
-DEF(hash_constructor, "#constructor")
-DEF(as, "as")
-DEF(from, "from")
-DEF(_default_, "*default*")
-DEF(_star_, "*")
-DEF(Module, "Module")
-DEF(then, "then")
-DEF(resolve, "resolve")
-DEF(reject, "reject")
-DEF(promise, "promise")
-DEF(proxy, "proxy")
-DEF(revoke, "revoke")
-DEF(async, "async")
-DEF(exec, "exec")
-DEF(groups, "groups")
-DEF(status, "status")
-DEF(reason, "reason")
-#ifdef CONFIG_BIGNUM
-DEF(bigint, "bigint")
-DEF(bigfloat, "bigfloat")
-#endif
-#ifdef CONFIG_ATOMICS
-DEF(not_equal, "not-equal")
-DEF(timed_out, "timed-out")
-DEF(ok, "ok")
-#endif
-DEF(toJSON, "toJSON")
-/* class names */
-DEF(Object, "Object")
-DEF(Array, "Array")
-DEF(Error, "Error")
-DEF(Number, "Number")
-DEF(String, "String")
-DEF(Boolean, "Boolean")
-DEF(Symbol, "Symbol")
-DEF(Arguments, "Arguments")
-DEF(Math, "Math")
-DEF(JSON, "JSON")
-DEF(Date, "Date")
-DEF(Function, "Function")
-DEF(GeneratorFunction, "GeneratorFunction")
-DEF(ForInIterator, "ForInIterator")
-DEF(RegExp, "RegExp")
-DEF(ArrayBuffer, "ArrayBuffer")
-DEF(SharedArrayBuffer, "SharedArrayBuffer")
-/* must keep same order as class IDs for typed arrays */
-DEF(Uint8ClampedArray, "Uint8ClampedArray") 
-DEF(Int8Array, "Int8Array")
-DEF(Uint8Array, "Uint8Array")
-DEF(Int16Array, "Int16Array")
-DEF(Uint16Array, "Uint16Array")
-DEF(Int32Array, "Int32Array")
-DEF(Uint32Array, "Uint32Array")
-#ifdef CONFIG_BIGNUM
-DEF(BigInt64Array, "BigInt64Array")
-DEF(BigUint64Array, "BigUint64Array")
-#endif
-DEF(Float32Array, "Float32Array")
-DEF(Float64Array, "Float64Array")
-DEF(DataView, "DataView")
-#ifdef CONFIG_BIGNUM
-DEF(BigInt, "BigInt")
-DEF(BigFloat, "BigFloat")
-DEF(BigFloatEnv, "BigFloatEnv")
-#endif
-DEF(Map, "Map")
-DEF(Set, "Set") /* Map + 1 */
-DEF(WeakMap, "WeakMap") /* Map + 2 */
-DEF(WeakSet, "WeakSet") /* Map + 3 */
-DEF(Map_Iterator, "Map Iterator")
-DEF(Set_Iterator, "Set Iterator")
-DEF(Array_Iterator, "Array Iterator")
-DEF(String_Iterator, "String Iterator")
-DEF(RegExp_String_Iterator, "RegExp String Iterator")
-DEF(Generator, "Generator")
-DEF(Proxy, "Proxy")
-DEF(Promise, "Promise")
-DEF(PromiseResolveFunction, "PromiseResolveFunction")
-DEF(PromiseRejectFunction, "PromiseRejectFunction")
-DEF(AsyncFunction, "AsyncFunction")
-DEF(AsyncFunctionResolve, "AsyncFunctionResolve")
-DEF(AsyncFunctionReject, "AsyncFunctionReject")
-DEF(AsyncGeneratorFunction, "AsyncGeneratorFunction")
-DEF(AsyncGenerator, "AsyncGenerator")
-DEF(EvalError, "EvalError")
-DEF(RangeError, "RangeError")
-DEF(ReferenceError, "ReferenceError")
-DEF(SyntaxError, "SyntaxError")
-DEF(TypeError, "TypeError")
-DEF(URIError, "URIError")
-DEF(InternalError, "InternalError")
-/* private symbols */
-DEF(Private_brand, "<brand>")
-/* symbols */
-DEF(Symbol_toPrimitive, "Symbol.toPrimitive")
-DEF(Symbol_iterator, "Symbol.iterator")
-DEF(Symbol_match, "Symbol.match")
-DEF(Symbol_matchAll, "Symbol.matchAll")
-DEF(Symbol_replace, "Symbol.replace")
-DEF(Symbol_search, "Symbol.search")
-DEF(Symbol_split, "Symbol.split")
-DEF(Symbol_toStringTag, "Symbol.toStringTag")
-DEF(Symbol_isConcatSpreadable, "Symbol.isConcatSpreadable")
-DEF(Symbol_hasInstance, "Symbol.hasInstance")
-DEF(Symbol_species, "Symbol.species")
-DEF(Symbol_unscopables, "Symbol.unscopables")
-DEF(Symbol_asyncIterator, "Symbol.asyncIterator")
-#ifdef CONFIG_BIGNUM
-DEF(Symbol_operatorOrder, "Symbol.operatorOrder")
-DEF(Symbol_operatorAdd, "Symbol.operatorAdd")
-DEF(Symbol_operatorSub, "Symbol.operatorSub")
-DEF(Symbol_operatorMul, "Symbol.operatorMul")
-DEF(Symbol_operatorDiv, "Symbol.operatorDiv")
-DEF(Symbol_operatorMod, "Symbol.operatorMod")
-DEF(Symbol_operatorPow, "Symbol.operatorPow")
-DEF(Symbol_operatorShl, "Symbol.operatorShl")
-DEF(Symbol_operatorShr, "Symbol.operatorShr")
-DEF(Symbol_operatorAnd, "Symbol.operatorAnd")
-DEF(Symbol_operatorOr, "Symbol.operatorOr")
-DEF(Symbol_operatorXor, "Symbol.operatorXor")
-DEF(Symbol_operatorCmpLT, "Symbol.operatorCmpLT")
-DEF(Symbol_operatorCmpLE, "Symbol.operatorCmpLE")
-DEF(Symbol_operatorCmpEQ, "Symbol.operatorCmpEQ")
-DEF(Symbol_operatorPlus, "Symbol.operatorPlus")
-DEF(Symbol_operatorNeg, "Symbol.operatorNeg")
-DEF(Symbol_operatorNot, "Symbol.operatorNot")
-DEF(Symbol_operatorInc, "Symbol.operatorInc")
-DEF(Symbol_operatorDec, "Symbol.operatorDec")
-DEF(Symbol_operatorMathMod, "Symbol.operatorMathMod")
-#endif
-
-#endif /* DEF */
diff --git a/third-party/quickjs-opcode.h b/third-party/quickjs-opcode.h
deleted file mode 100644
index 0ea029e..0000000
--- a/third-party/quickjs-opcode.h
+++ /dev/null
@@ -1,365 +0,0 @@
-/*
- * QuickJS opcode definitions
- * 
- * Copyright (c) 2017-2018 Fabrice Bellard
- * Copyright (c) 2017-2018 Charlie Gordon
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifdef FMT
-FMT(none)
-FMT(none_int)
-FMT(none_loc)
-FMT(none_arg)
-FMT(none_var_ref)
-FMT(u8)
-FMT(i8)
-FMT(loc8)
-FMT(const8)
-FMT(label8)
-FMT(u16)
-FMT(i16)
-FMT(label16)
-FMT(npop)
-FMT(npopx)
-FMT(loc)
-FMT(arg)
-FMT(var_ref)
-FMT(u32)
-FMT(i32)
-FMT(const)
-FMT(label)
-FMT(atom)
-FMT(atom_u8)
-FMT(atom_u16)
-FMT(atom_label_u8)
-FMT(atom_label_u16)
-FMT(label_u16)
-#undef FMT
-#endif /* FMT */
-
-#ifdef DEF
-
-#ifndef def
-#define def(id, size, n_pop, n_push, f) DEF(id, size, n_pop, n_push, f)
-#endif
-
-DEF(invalid, 1, 0, 0, none) /* never emitted */
-
-/* push values */
-DEF(       push_i32, 5, 0, 1, i32)
-DEF(     push_const, 5, 0, 1, const)
-DEF(       fclosure, 5, 0, 1, const) /* must follow push_const */
-DEF(push_atom_value, 5, 0, 1, atom)
-DEF( private_symbol, 5, 0, 1, atom)
-DEF(      undefined, 1, 0, 1, none)
-DEF(           null, 1, 0, 1, none)
-DEF(      push_this, 1, 0, 1, none) /* only used at the start of a function */
-DEF(     push_false, 1, 0, 1, none)
-DEF(      push_true, 1, 0, 1, none)
-DEF(         object, 1, 0, 1, none)
-DEF( special_object, 2, 0, 1, u8) /* only used at the start of a function */
-DEF(           rest, 3, 0, 1, u16) /* only used at the start of a function */
-
-DEF(           drop, 1, 1, 0, none) /* a -> */
-DEF(            nip, 1, 2, 1, none) /* a b -> b */
-DEF(           nip1, 1, 3, 2, none) /* a b c -> b c */
-DEF(            dup, 1, 1, 2, none) /* a -> a a */
-DEF(           dup1, 1, 2, 3, none) /* a b -> a a b */
-DEF(           dup2, 1, 2, 4, none) /* a b -> a b a b */
-DEF(           dup3, 1, 3, 6, none) /* a b c -> a b c a b c */
-DEF(        insert2, 1, 2, 3, none) /* obj a -> a obj a (dup_x1) */
-DEF(        insert3, 1, 3, 4, none) /* obj prop a -> a obj prop a (dup_x2) */
-DEF(        insert4, 1, 4, 5, none) /* this obj prop a -> a this obj prop a */
-DEF(          perm3, 1, 3, 3, none) /* obj a b -> a obj b */
-DEF(          perm4, 1, 4, 4, none) /* obj prop a b -> a obj prop b */
-DEF(          perm5, 1, 5, 5, none) /* this obj prop a b -> a this obj prop b */
-DEF(           swap, 1, 2, 2, none) /* a b -> b a */
-DEF(          swap2, 1, 4, 4, none) /* a b c d -> c d a b */
-DEF(          rot3l, 1, 3, 3, none) /* x a b -> a b x */
-DEF(          rot3r, 1, 3, 3, none) /* a b x -> x a b */
-DEF(          rot4l, 1, 4, 4, none) /* x a b c -> a b c x */
-DEF(          rot5l, 1, 5, 5, none) /* x a b c d -> a b c d x */
-
-DEF(call_constructor, 3, 2, 1, npop) /* func new.target args -> ret. arguments are not counted in n_pop */
-DEF(           call, 3, 1, 1, npop) /* arguments are not counted in n_pop */
-DEF(      tail_call, 3, 1, 0, npop) /* arguments are not counted in n_pop */
-DEF(    call_method, 3, 2, 1, npop) /* arguments are not counted in n_pop */
-DEF(tail_call_method, 3, 2, 0, npop) /* arguments are not counted in n_pop */
-DEF(     array_from, 3, 0, 1, npop) /* arguments are not counted in n_pop */
-DEF(          apply, 3, 3, 1, u16)
-DEF(         return, 1, 1, 0, none)
-DEF(   return_undef, 1, 0, 0, none)
-DEF(check_ctor_return, 1, 1, 2, none)
-DEF(     check_ctor, 1, 0, 0, none)
-DEF(    check_brand, 1, 2, 2, none) /* this_obj func -> this_obj func */
-DEF(      add_brand, 1, 2, 0, none) /* this_obj home_obj -> */
-DEF(   return_async, 1, 1, 0, none)
-DEF(          throw, 1, 1, 0, none)
-DEF(      throw_var, 6, 0, 0, atom_u8)
-DEF(           eval, 3, 1, 1, u16)
-DEF(         regexp, 1, 2, 1, none) /* create a RegExp object from the pattern and a
-                                       bytecode string */
-DEF( get_super_ctor, 1, 1, 1, none)
-DEF(      get_super, 1, 1, 1, none)
-DEF(         import, 1, 1, 1, none) /* dynamic module import */
-
-DEF(      check_var, 5, 0, 1, atom) /* check if a variable exists */
-DEF(  get_var_undef, 5, 0, 1, atom) /* push undefined if the variable does not exist */
-DEF(        get_var, 5, 0, 1, atom) /* throw an exception if the variable does not exist */
-DEF(        put_var, 5, 1, 0, atom) /* must come after get_var */
-DEF(   put_var_init, 5, 1, 0, atom) /* must come after put_var. Used to initialize a global lexical variable */
-DEF( put_var_strict, 5, 2, 0, atom) /* for strict mode variable write */
-
-DEF(  get_ref_value, 1, 2, 3, none)
-DEF(  put_ref_value, 1, 3, 0, none)
-
-DEF(     define_var, 6, 0, 0, atom_u8)
-DEF(check_define_var, 6, 0, 0, atom_u8)
-DEF(    define_func, 6, 1, 0, atom_u8)
-DEF(      get_field, 5, 1, 1, atom)
-DEF(     get_field2, 5, 1, 2, atom)
-DEF(      put_field, 5, 2, 0, atom)
-DEF( get_private_field, 1, 2, 1, none) /* obj prop -> value */
-DEF( put_private_field, 1, 3, 0, none) /* obj value prop -> */
-DEF(define_private_field, 1, 3, 1, none) /* obj prop value -> obj */
-DEF(   get_array_el, 1, 2, 1, none)
-DEF(  get_array_el2, 1, 2, 2, none) /* obj prop -> obj value */
-DEF(   put_array_el, 1, 3, 0, none)
-DEF(get_super_value, 1, 3, 1, none) /* this obj prop -> value */
-DEF(put_super_value, 1, 4, 0, none) /* this obj prop value -> */
-DEF(   define_field, 5, 2, 1, atom)
-DEF(       set_name, 5, 1, 1, atom)
-DEF(set_name_computed, 1, 2, 2, none)
-DEF(      set_proto, 1, 2, 1, none)
-DEF(set_home_object, 1, 2, 2, none)
-DEF(define_array_el, 1, 3, 2, none)
-DEF(         append, 1, 3, 2, none) /* append enumerated object, update length */
-DEF(copy_data_properties, 2, 3, 3, u8)
-DEF(  define_method, 6, 2, 1, atom_u8)
-DEF(define_method_computed, 2, 3, 1, u8) /* must come after define_method */
-DEF(   define_class, 6, 2, 2, atom_u8)
-
-DEF(        get_loc, 3, 0, 1, loc)
-DEF(        put_loc, 3, 1, 0, loc) /* must come after get_loc */
-DEF(        set_loc, 3, 1, 1, loc) /* must come after put_loc */
-DEF(        get_arg, 3, 0, 1, arg)
-DEF(        put_arg, 3, 1, 0, arg) /* must come after get_arg */
-DEF(        set_arg, 3, 1, 1, arg) /* must come after put_arg */
-DEF(    get_var_ref, 3, 0, 1, var_ref) 
-DEF(    put_var_ref, 3, 1, 0, var_ref) /* must come after get_var_ref */
-DEF(    set_var_ref, 3, 1, 1, var_ref) /* must come after put_var_ref */
-DEF(set_loc_uninitialized, 3, 0, 0, loc)
-DEF(  get_loc_check, 3, 0, 1, loc)
-DEF(  put_loc_check, 3, 1, 0, loc) /* must come after get_loc_check */
-DEF(  put_loc_check_init, 3, 1, 0, loc)
-DEF(get_var_ref_check, 3, 0, 1, var_ref) 
-DEF(put_var_ref_check, 3, 1, 0, var_ref) /* must come after get_var_ref_check */
-DEF(put_var_ref_check_init, 3, 1, 0, var_ref)
-DEF(      close_loc, 3, 0, 0, loc)
-DEF(       if_false, 5, 1, 0, label)
-DEF(        if_true, 5, 1, 0, label) /* must come after if_false */
-DEF(           goto, 5, 0, 0, label) /* must come after if_true */
-DEF(          catch, 5, 0, 1, label)
-DEF(          gosub, 5, 0, 0, label) /* used to execute the finally block */
-DEF(            ret, 1, 1, 0, none) /* used to return from the finally block */
-
-DEF(      to_object, 1, 1, 1, none)
-//DEF(      to_string, 1, 1, 1, none)
-DEF(     to_propkey, 1, 1, 1, none)
-DEF(    to_propkey2, 1, 2, 2, none)
-
-DEF(   with_get_var, 10, 1, 0, atom_label_u8)     /* must be in the same order as scope_xxx */
-DEF(   with_put_var, 10, 2, 1, atom_label_u8)     /* must be in the same order as scope_xxx */
-DEF(with_delete_var, 10, 1, 0, atom_label_u8)     /* must be in the same order as scope_xxx */
-DEF(  with_make_ref, 10, 1, 0, atom_label_u8)     /* must be in the same order as scope_xxx */
-DEF(   with_get_ref, 10, 1, 0, atom_label_u8)     /* must be in the same order as scope_xxx */
-DEF(with_get_ref_undef, 10, 1, 0, atom_label_u8)
-
-DEF(   make_loc_ref, 7, 0, 2, atom_u16)
-DEF(   make_arg_ref, 7, 0, 2, atom_u16)
-DEF(make_var_ref_ref, 7, 0, 2, atom_u16)
-DEF(   make_var_ref, 5, 0, 2, atom)
-
-DEF(   for_in_start, 1, 1, 1, none)
-DEF(   for_of_start, 1, 1, 3, none)
-DEF(for_await_of_start, 1, 1, 3, none)
-DEF(    for_in_next, 1, 1, 3, none)
-DEF(    for_of_next, 2, 3, 5, u8)
-DEF(for_await_of_next, 1, 3, 4, none)
-DEF(iterator_get_value_done, 1, 1, 2, none)
-DEF( iterator_close, 1, 3, 0, none)
-DEF(iterator_close_return, 1, 4, 4, none)
-DEF(async_iterator_close, 1, 3, 2, none)
-DEF(async_iterator_next, 1, 4, 4, none)
-DEF(async_iterator_get, 2, 4, 5, u8)
-DEF(  initial_yield, 1, 0, 0, none)
-DEF(          yield, 1, 1, 2, none)
-DEF(     yield_star, 1, 2, 2, none)
-DEF(async_yield_star, 1, 1, 2, none)
-DEF(          await, 1, 1, 1, none)
-
-/* arithmetic/logic operations */
-DEF(            neg, 1, 1, 1, none)
-DEF(           plus, 1, 1, 1, none)
-DEF(            dec, 1, 1, 1, none)
-DEF(            inc, 1, 1, 1, none)
-DEF(       post_dec, 1, 1, 2, none)
-DEF(       post_inc, 1, 1, 2, none)
-DEF(        dec_loc, 2, 0, 0, loc8)
-DEF(        inc_loc, 2, 0, 0, loc8)
-DEF(        add_loc, 2, 1, 0, loc8)
-DEF(            not, 1, 1, 1, none)
-DEF(           lnot, 1, 1, 1, none)
-DEF(         typeof, 1, 1, 1, none)
-DEF(         delete, 1, 2, 1, none)
-DEF(     delete_var, 5, 0, 1, atom)
-
-DEF(            mul, 1, 2, 1, none)
-DEF(            div, 1, 2, 1, none)
-DEF(            mod, 1, 2, 1, none)
-DEF(            add, 1, 2, 1, none)
-DEF(            sub, 1, 2, 1, none)
-DEF(            pow, 1, 2, 1, none)
-DEF(            shl, 1, 2, 1, none)
-DEF(            sar, 1, 2, 1, none)
-DEF(            shr, 1, 2, 1, none)
-DEF(             lt, 1, 2, 1, none)
-DEF(            lte, 1, 2, 1, none)
-DEF(             gt, 1, 2, 1, none)
-DEF(            gte, 1, 2, 1, none)
-DEF(     instanceof, 1, 2, 1, none)
-DEF(             in, 1, 2, 1, none)
-DEF(             eq, 1, 2, 1, none)
-DEF(            neq, 1, 2, 1, none)
-DEF(      strict_eq, 1, 2, 1, none)
-DEF(     strict_neq, 1, 2, 1, none)
-DEF(            and, 1, 2, 1, none)
-DEF(            xor, 1, 2, 1, none)
-DEF(             or, 1, 2, 1, none)
-#ifdef CONFIG_BIGNUM
-DEF(      mul_pow10, 1, 2, 1, none)
-DEF(       math_div, 1, 2, 1, none)
-DEF(       math_mod, 1, 2, 1, none)
-DEF(       math_pow, 1, 2, 1, none)
-#endif
-/* must be the last non short and non temporary opcode */
-DEF(            nop, 1, 0, 0, none) 
-
-/* temporary opcodes: never emitted in the final bytecode */
-
-def(set_arg_valid_upto, 3, 0, 0, arg) /* emitted in phase 1, removed in phase 2 */
-
-def(close_var_object, 1, 0, 0, none) /* emitted in phase 1, removed in phase 2 */
-def(    enter_scope, 3, 0, 0, u16)  /* emitted in phase 1, removed in phase 2 */
-def(    leave_scope, 3, 0, 0, u16)  /* emitted in phase 1, removed in phase 2 */
-
-def(          label, 5, 0, 0, label) /* emitted in phase 1, removed in phase 3 */
-
-def(scope_get_var_undef, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */
-def(  scope_get_var, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */
-def(  scope_put_var, 7, 1, 0, atom_u16) /* emitted in phase 1, removed in phase 2 */
-def(scope_delete_var, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */
-def( scope_make_ref, 11, 0, 2, atom_label_u16) /* emitted in phase 1, removed in phase 2 */
-def(  scope_get_ref, 7, 0, 2, atom_u16) /* emitted in phase 1, removed in phase 2 */
-def(scope_put_var_init, 7, 0, 2, atom_u16) /* emitted in phase 1, removed in phase 2 */
-def(scope_get_private_field, 7, 1, 1, atom_u16) /* obj -> value, emitted in phase 1, removed in phase 2 */
-def(scope_get_private_field2, 7, 1, 2, atom_u16) /* obj -> obj value, emitted in phase 1, removed in phase 2 */
-def(scope_put_private_field, 7, 1, 1, atom_u16) /* obj value ->, emitted in phase 1, removed in phase 2 */
-
-def(       line_num, 5, 0, 0, u32) /* emitted in phase 1, removed in phase 3 */
-
-#if SHORT_OPCODES
-DEF(    push_minus1, 1, 0, 1, none_int)
-DEF(         push_0, 1, 0, 1, none_int)
-DEF(         push_1, 1, 0, 1, none_int)
-DEF(         push_2, 1, 0, 1, none_int)
-DEF(         push_3, 1, 0, 1, none_int)
-DEF(         push_4, 1, 0, 1, none_int)
-DEF(         push_5, 1, 0, 1, none_int)
-DEF(         push_6, 1, 0, 1, none_int)
-DEF(         push_7, 1, 0, 1, none_int)
-DEF(        push_i8, 2, 0, 1, i8)
-DEF(       push_i16, 3, 0, 1, i16)
-DEF(    push_const8, 2, 0, 1, const8)
-DEF(      fclosure8, 2, 0, 1, const8) /* must follow push_const8 */
-DEF(push_empty_string, 1, 0, 1, none)
-
-DEF(       get_loc8, 2, 0, 1, loc8)
-DEF(       put_loc8, 2, 1, 0, loc8)
-DEF(       set_loc8, 2, 1, 1, loc8)
-
-DEF(       get_loc0, 1, 0, 1, none_loc)
-DEF(       get_loc1, 1, 0, 1, none_loc)
-DEF(       get_loc2, 1, 0, 1, none_loc)
-DEF(       get_loc3, 1, 0, 1, none_loc)
-DEF(       put_loc0, 1, 1, 0, none_loc)
-DEF(       put_loc1, 1, 1, 0, none_loc)
-DEF(       put_loc2, 1, 1, 0, none_loc)
-DEF(       put_loc3, 1, 1, 0, none_loc)
-DEF(       set_loc0, 1, 1, 1, none_loc)
-DEF(       set_loc1, 1, 1, 1, none_loc)
-DEF(       set_loc2, 1, 1, 1, none_loc)
-DEF(       set_loc3, 1, 1, 1, none_loc)
-DEF(       get_arg0, 1, 0, 1, none_arg)
-DEF(       get_arg1, 1, 0, 1, none_arg)
-DEF(       get_arg2, 1, 0, 1, none_arg)
-DEF(       get_arg3, 1, 0, 1, none_arg)
-DEF(       put_arg0, 1, 1, 0, none_arg)
-DEF(       put_arg1, 1, 1, 0, none_arg)
-DEF(       put_arg2, 1, 1, 0, none_arg)
-DEF(       put_arg3, 1, 1, 0, none_arg)
-DEF(       set_arg0, 1, 1, 1, none_arg)
-DEF(       set_arg1, 1, 1, 1, none_arg)
-DEF(       set_arg2, 1, 1, 1, none_arg)
-DEF(       set_arg3, 1, 1, 1, none_arg)
-DEF(   get_var_ref0, 1, 0, 1, none_var_ref)
-DEF(   get_var_ref1, 1, 0, 1, none_var_ref)
-DEF(   get_var_ref2, 1, 0, 1, none_var_ref)
-DEF(   get_var_ref3, 1, 0, 1, none_var_ref)
-DEF(   put_var_ref0, 1, 1, 0, none_var_ref)
-DEF(   put_var_ref1, 1, 1, 0, none_var_ref)
-DEF(   put_var_ref2, 1, 1, 0, none_var_ref)
-DEF(   put_var_ref3, 1, 1, 0, none_var_ref)
-DEF(   set_var_ref0, 1, 1, 1, none_var_ref)
-DEF(   set_var_ref1, 1, 1, 1, none_var_ref)
-DEF(   set_var_ref2, 1, 1, 1, none_var_ref)
-DEF(   set_var_ref3, 1, 1, 1, none_var_ref)
-
-DEF(     get_length, 1, 1, 1, none)
-
-DEF(      if_false8, 2, 1, 0, label8)
-DEF(       if_true8, 2, 1, 0, label8) /* must come after if_false8 */
-DEF(          goto8, 2, 0, 0, label8) /* must come after if_true8 */
-DEF(         goto16, 3, 0, 0, label16)
-
-DEF(          call0, 1, 1, 1, npopx)
-DEF(          call1, 1, 1, 1, npopx)
-DEF(          call2, 1, 1, 1, npopx)
-DEF(          call3, 1, 1, 1, npopx)
-
-DEF(   is_undefined, 1, 1, 1, none)
-DEF(        is_null, 1, 1, 1, none)
-DEF(    is_function, 1, 1, 1, none)
-#endif
-
-#undef DEF
-#undef def
-#endif  /* DEF */
diff --git a/third-party/quickjs.c b/third-party/quickjs.c
deleted file mode 100644
index 7bb20cb..0000000
--- a/third-party/quickjs.c
+++ /dev/null
@@ -1,49733 +0,0 @@
-/*
- * QuickJS Javascript Engine
- * 
- * Copyright (c) 2017-2019 Fabrice Bellard
- * Copyright (c) 2017-2019 Charlie Gordon
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <inttypes.h>
-#include <string.h>
-#include <assert.h>
-#include <sys/time.h>
-#include <time.h>
-#include <fenv.h>
-#include <math.h>
-#if defined(__APPLE__)
-#include <malloc/malloc.h>
-#elif defined(__linux__)
-#include <malloc.h>
-#endif
-
-#include "cutils.h"
-#include "list.h"
-#include "quickjs.h"
-#include "libregexp.h"
-#ifdef CONFIG_BIGNUM
-#include "libbf.h"
-#endif
-
-#define OPTIMIZE         1
-#define SHORT_OPCODES    1
-#if defined(EMSCRIPTEN)
-#define DIRECT_DISPATCH  0
-#else
-#define DIRECT_DISPATCH  1
-#endif
-
-#if defined(__APPLE__)
-#define MALLOC_OVERHEAD  0
-#else
-#define MALLOC_OVERHEAD  8
-#endif
-
-#if !defined(_WIN32)
-/* define it if printf uses the RNDN rounding mode instead of RNDNA */
-#define CONFIG_PRINTF_RNDN
-#endif
-
-/* define to include Atomics.* operations which depend on the OS
-   threads */
-#if !defined(EMSCRIPTEN)
-#define CONFIG_ATOMICS
-#endif
-
-/* dump object free */
-//#define DUMP_FREE
-//#define DUMP_CLOSURE
-/* dump the bytecode of the compiled functions: combination of bits
-   1: dump pass 3 final byte code
-   2: dump pass 2 code
-   4: dump pass 1 code
-   8: dump stdlib functions
-  16: dump bytecode in hex
-  32: dump line number table
- */
-//#define DUMP_BYTECODE  (1)
-/* dump the occurence of the automatic GC */
-//#define DUMP_GC
-/* dump objects freed by the garbage collector */
-//#define DUMP_GC_FREE
-/* dump objects leaking when freeing the runtime */
-//#define DUMP_LEAKS  1
-/* dump memory usage before running the garbage collector */
-//#define DUMP_MEM
-//#define DUMP_OBJECTS    /* dump objects in JS_FreeContext */
-//#define DUMP_ATOMS      /* dump atoms in JS_FreeContext */
-//#define DUMP_SHAPES     /* dump shapes in JS_FreeContext */
-//#define DUMP_MODULE_RESOLVE
-//#define DUMP_PROMISE
-//#define DUMP_READ_OBJECT
-
-/* test the GC by forcing it before each object allocation */
-//#define FORCE_GC_AT_MALLOC
-
-#ifdef CONFIG_ATOMICS
-#include <pthread.h>
-#include <stdatomic.h>
-#include <errno.h>
-#endif
-
-enum {
-    /* classid tag        */    /* union usage   | properties */
-    JS_CLASS_OBJECT = 1,        /* must be first */
-    JS_CLASS_ARRAY,             /* u.array       | length */
-    JS_CLASS_ERROR,
-    JS_CLASS_NUMBER,            /* u.object_data */
-    JS_CLASS_STRING,            /* u.object_data */
-    JS_CLASS_BOOLEAN,           /* u.object_data */
-    JS_CLASS_SYMBOL,            /* u.object_data */
-    JS_CLASS_ARGUMENTS,         /* u.array       | length */
-    JS_CLASS_MAPPED_ARGUMENTS,  /*               | length */
-    JS_CLASS_DATE,              /* u.object_data */
-    JS_CLASS_MODULE_NS,
-    JS_CLASS_C_FUNCTION,        /* u.cfunc */
-    JS_CLASS_BYTECODE_FUNCTION, /* u.func */
-    JS_CLASS_BOUND_FUNCTION,    /* u.bound_function */
-    JS_CLASS_C_FUNCTION_DATA,   /* u.c_function_data_record */
-    JS_CLASS_GENERATOR_FUNCTION, /* u.func */
-    JS_CLASS_FOR_IN_ITERATOR,   /* u.for_in_iterator */
-    JS_CLASS_REGEXP,            /* u.regexp */
-    JS_CLASS_ARRAY_BUFFER,      /* u.array_buffer */
-    JS_CLASS_SHARED_ARRAY_BUFFER, /* u.array_buffer */
-    JS_CLASS_UINT8C_ARRAY,      /* u.array (typed_array) */
-    JS_CLASS_INT8_ARRAY,        /* u.array (typed_array) */
-    JS_CLASS_UINT8_ARRAY,       /* u.array (typed_array) */
-    JS_CLASS_INT16_ARRAY,       /* u.array (typed_array) */
-    JS_CLASS_UINT16_ARRAY,      /* u.array (typed_array) */
-    JS_CLASS_INT32_ARRAY,       /* u.array (typed_array) */
-    JS_CLASS_UINT32_ARRAY,      /* u.array (typed_array) */
-#ifdef CONFIG_BIGNUM
-    JS_CLASS_BIG_INT64_ARRAY,   /* u.array (typed_array) */
-    JS_CLASS_BIG_UINT64_ARRAY,  /* u.array (typed_array) */
-#endif
-    JS_CLASS_FLOAT32_ARRAY,     /* u.array (typed_array) */
-    JS_CLASS_FLOAT64_ARRAY,     /* u.array (typed_array) */
-    JS_CLASS_DATAVIEW,          /* u.typed_array */
-#ifdef CONFIG_BIGNUM
-    JS_CLASS_BIG_INT,           /* u.object_data */
-    JS_CLASS_BIG_FLOAT,         /* u.object_data */
-    JS_CLASS_FLOAT_ENV,         /* u.float_env */
-#endif
-    JS_CLASS_MAP,               /* u.map_state */
-    JS_CLASS_SET,               /* u.map_state */
-    JS_CLASS_WEAKMAP,           /* u.map_state */
-    JS_CLASS_WEAKSET,           /* u.map_state */
-    JS_CLASS_MAP_ITERATOR,      /* u.map_iterator_data */
-    JS_CLASS_SET_ITERATOR,      /* u.map_iterator_data */
-    JS_CLASS_ARRAY_ITERATOR,    /* u.array_iterator_data */
-    JS_CLASS_STRING_ITERATOR,   /* u.array_iterator_data */
-    JS_CLASS_REGEXP_STRING_ITERATOR,   /* u.regexp_string_iterator_data */
-    JS_CLASS_GENERATOR,         /* u.generator_data */
-    JS_CLASS_PROXY,             /* u.proxy_data */
-    JS_CLASS_PROMISE,           /* u.promise_data */
-    JS_CLASS_PROMISE_RESOLVE_FUNCTION,  /* u.promise_function_data */
-    JS_CLASS_PROMISE_REJECT_FUNCTION,   /* u.promise_function_data */
-    JS_CLASS_ASYNC_FUNCTION,            /* u.func */
-    JS_CLASS_ASYNC_FUNCTION_RESOLVE,    /* u.async_function_data */
-    JS_CLASS_ASYNC_FUNCTION_REJECT,     /* u.async_function_data */
-    JS_CLASS_ASYNC_FROM_SYNC_ITERATOR,  /* u.async_from_sync_iterator_data */
-    JS_CLASS_ASYNC_GENERATOR_FUNCTION,  /* u.func */
-    JS_CLASS_ASYNC_GENERATOR,   /* u.async_generator_data */
-
-    JS_CLASS_INIT_COUNT, /* last entry for predefined classes */
-};
-
-/* number of typed array types */
-#define JS_TYPED_ARRAY_COUNT  (JS_CLASS_FLOAT64_ARRAY - JS_CLASS_UINT8C_ARRAY + 1)
-static uint8_t const typed_array_size_log2[JS_TYPED_ARRAY_COUNT];
-#define typed_array_size_log2(classid)  (typed_array_size_log2[(classid)- JS_CLASS_UINT8C_ARRAY])
-
-typedef enum JSErrorEnum {
-    JS_EVAL_ERROR,
-    JS_RANGE_ERROR,
-    JS_REFERENCE_ERROR,
-    JS_SYNTAX_ERROR,
-    JS_TYPE_ERROR,
-    JS_URI_ERROR,
-    JS_INTERNAL_ERROR,
-
-    JS_NATIVE_ERROR_COUNT, /* number of different NativeError objects */
-} JSErrorEnum;
-
-#define JS_MAX_LOCAL_VARS 65536
-#define JS_STACK_SIZE_MAX 65536
-#define JS_STRING_LEN_MAX ((1 << 30) - 1)
-
-#define __exception __attribute__((warn_unused_result))
-
-typedef struct JSShape JSShape;
-typedef struct JSString JSString;
-typedef struct JSString JSAtomStruct;
-
-struct JSRuntime {
-    JSMallocFunctions mf;
-    JSMallocState malloc_state;
-    const char *rt_info;
-
-    int atom_hash_size; /* power of two */
-    int atom_count;
-    int atom_size;
-    int atom_count_resize; /* resize hash table at this count */
-    uint32_t *atom_hash;
-    JSAtomStruct **atom_array;
-    int atom_free_index; /* 0 = none */
-
-    int class_count;    /* size of class_array */
-    JSClass *class_array;
-
-    struct list_head context_list; /* list of JSContext.link */
-    /* list of allocated objects (used by the garbage collector) */
-    struct list_head obj_list; /* list of JSObject.link */
-    size_t malloc_gc_threshold;
-#ifdef DUMP_LEAKS
-    struct list_head string_list; /* list of JSString.link */
-#endif
-    struct list_head tmp_obj_list; /* used during gc */
-    struct list_head free_obj_list; /* used during gc */
-    struct list_head *el_next; /* used during gc */
-
-    JSInterruptHandler *interrupt_handler;
-    void *interrupt_opaque;
-
-    struct list_head job_list; /* list of JSJobEntry.link */
-
-    JSModuleNormalizeFunc *module_normalize_func;
-    JSModuleLoaderFunc *module_loader_func;
-    void *module_loader_opaque;
-
-    BOOL in_gc_sweep : 8;
-    BOOL can_block : 8; /* TRUE if Atomics.wait can block */
-
-    /* Shape hash table */
-    int shape_hash_bits;
-    int shape_hash_size;
-    int shape_hash_count; /* number of hashed shapes */
-    JSShape **shape_hash;
-#ifdef CONFIG_BIGNUM
-    bf_context_t bf_ctx;
-#endif
-};
-
-struct JSClass {
-    uint32_t class_id; /* 0 means free entry */
-    JSAtom class_name;
-    JSClassFinalizer *finalizer;
-    JSClassGCMark *gc_mark;
-    JSClassCall *call;
-    /* pointers for exotic behavior, can be NULL if none are present */
-    const JSClassExoticMethods *exotic;
-};
-
-#define JS_MODE_STRICT (1 << 0)
-#define JS_MODE_STRIP  (1 << 1)
-#define JS_MODE_BIGINT (1 << 2)
-#define JS_MODE_MATH   (1 << 3)
-
-typedef struct JSStackFrame {
-    struct JSStackFrame *prev_frame; /* NULL if first stack frame */
-    JSValue cur_func; /* current function, JS_UNDEFINED if the frame is detached */
-    JSValue *arg_buf; /* arguments */
-    JSValue *var_buf; /* variables */
-    struct list_head var_ref_list; /* list of JSVarRef.link */
-    const uint8_t *cur_pc; /* only used in bytecode functions : PC of the
-                        instruction after the call */
-    int arg_count;
-    int js_mode; /* for C functions: 0 */
-    /* only used in generators. Current stack pointer value. NULL if
-       the function is running. */ 
-    JSValue *cur_sp;
-} JSStackFrame;
-
-typedef struct JSGCHeader {
-    uint8_t mark;
-} JSGCHeader;
-
-typedef struct JSVarRef {
-    JSRefCountHeader header; /* must come first, 32-bit */
-    JSGCHeader gc_header; /* must come after JSRefCountHeader, 8-bit */
-    uint8_t is_arg : 1;
-    int var_idx; /* index of the corresponding function variable on
-                    the stack */
-    struct list_head link; /* prev = NULL if no longer on the stack */
-    JSValue *pvalue; /* pointer to the value, either on the stack or
-                        to 'value' */
-    JSValue value; /* used when the variable is no longer on the stack */
-} JSVarRef;
-
-#ifdef CONFIG_BIGNUM
-typedef struct JSFloatEnv {
-    limb_t prec;
-    bf_flags_t flags;
-    unsigned int status;
-} JSFloatEnv;
-
-/* the same structure is used for big integers and big floats. Big
-   integers are never infinite or NaNs */
-typedef struct JSBigFloat {
-    JSRefCountHeader header; /* must come first, 32-bit */
-    bf_t num;
-} JSBigFloat;
-#endif
-
-/* must be large enough to have a negligible runtime cost and small
-   enough to call the interrupt callback often. */
-#define JS_INTERRUPT_COUNTER_INIT 10000
-
-struct JSContext {
-    JSRuntime *rt;
-    struct list_head link;
-    const uint8_t *stack_top;
-    size_t stack_size; /* in bytes */
-
-    JSValue current_exception;
-    /* true if a backtrace needs to be added to the current exception
-       (the backtrace generation cannot be done immediately in a bytecode
-       function) */
-    BOOL exception_needs_backtrace : 8;
-    /* true if inside an out of memory error, to avoid recursing */
-    BOOL in_out_of_memory : 8;
-    uint16_t binary_object_count;
-    int binary_object_size;
-
-    JSShape *array_shape;   /* initial shape for Array objects */
-
-    JSStackFrame *current_stack_frame;
-
-    JSValue *class_proto;
-    JSValue function_proto;
-    JSValue function_ctor;
-    JSValue regexp_ctor;
-    JSValue promise_ctor;
-    JSValue native_error_proto[JS_NATIVE_ERROR_COUNT];
-    JSValue iterator_proto;
-    JSValue async_iterator_proto;
-    JSValue array_proto_values;
-    JSValue throw_type_error;
-
-    JSValue global_obj; /* global object */
-    JSValue global_var_obj; /* contains the global let/const definitions */
-
-    uint64_t random_state;
-#ifdef CONFIG_BIGNUM
-    bf_context_t *bf_ctx;   /* points to rt->bf_ctx, shared by all contexts */
-    JSFloatEnv fp_env; /* global FP environment */
-#endif
-    /* when the counter reaches zero, JSRutime.interrupt_handler is called */
-    int interrupt_counter;
-    BOOL is_error_property_enabled;
-
-    struct list_head loaded_modules; /* list of JSModuleDef.link */
-
-    /* if NULL, RegExp compilation is not supported */
-    JSValue (*compile_regexp)(JSContext *ctx, JSValueConst pattern,
-                              JSValueConst flags);
-    /* if NULL, eval is not supported */
-    JSValue (*eval_internal)(JSContext *ctx, JSValueConst this_obj,
-                             const char *input, size_t input_len,
-                             const char *filename, int flags, int scope_idx);
-    void *user_opaque;
-};
-
-typedef union JSFloat64Union {
-    double d;
-    uint64_t u64;
-    uint32_t u32[2];
-} JSFloat64Union;
-
-enum {
-    JS_ATOM_TYPE_STRING = 1,
-    JS_ATOM_TYPE_GLOBAL_SYMBOL,
-    JS_ATOM_TYPE_SYMBOL,
-    JS_ATOM_TYPE_PRIVATE,
-};
-
-enum {
-    JS_ATOM_HASH_SYMBOL,
-    JS_ATOM_HASH_PRIVATE,
-};
-
-typedef enum {
-    JS_ATOM_KIND_STRING,
-    JS_ATOM_KIND_SYMBOL,
-    JS_ATOM_KIND_PRIVATE,
-} JSAtomKindEnum;
-
-#define JS_ATOM_HASH_MASK  ((1 << 30) - 1)
-
-struct JSString {
-    JSRefCountHeader header; /* must come first, 32-bit */
-    uint32_t len : 31;
-    uint8_t is_wide_char : 1; /* 0 = 8 bits, 1 = 16 bits characters */
-    /* for JS_ATOM_TYPE_SYMBOL: hash = 0, atom_type = 3,
-       for JS_ATOM_TYPE_PRIVATE: hash = 1, atom_type = 3
-       XXX: could change encoding to have one more bit in hash */
-    uint32_t hash : 30;
-    uint8_t atom_type : 2; /* != 0 if atom, JS_ATOM_TYPE_x */
-    uint32_t hash_next; /* atom_index for JS_ATOM_TYPE_SYMBOL */
-#ifdef DUMP_LEAKS
-    struct list_head link; /* string list */
-#endif
-    union {
-        uint8_t str8[0]; /* 8 bit strings will get an extra null terminator */
-        uint16_t str16[0];
-    } u;
-};
-
-typedef struct JSClosureVar {
-    uint8_t is_local : 1;
-    uint8_t is_arg : 1;
-    uint8_t is_const : 1;
-    uint8_t is_lexical : 1;
-    uint8_t var_kind : 3; /* see JSVarKindEnum */
-    /* 9 bits available */
-    uint16_t var_idx; /* is_local = TRUE: index to a normal variable of the
-                    parent function. otherwise: index to a closure
-                    variable of the parent function */
-    JSAtom var_name;
-} JSClosureVar;
-
-typedef struct JSVarScope {
-    int parent;  /* index into fd->scopes of the enclosing scope */
-    int first;   /* index into fd->vars of the last variable in this scope */
-} JSVarScope;
-
-typedef enum {
-    /* XXX: add more variable kinds here instead of using bit fields */
-    JS_VAR_NORMAL,
-    JS_VAR_CATCH,
-    JS_VAR_PRIVATE_FIELD,
-    JS_VAR_PRIVATE_METHOD,
-    JS_VAR_PRIVATE_GETTER,
-    JS_VAR_PRIVATE_SETTER, /* must come after JS_VAR_PRIVATE_GETTER */
-    JS_VAR_PRIVATE_GETTER_SETTER, /* must come after JS_VAR_PRIVATE_SETTER */
-} JSVarKindEnum;
-
-typedef struct JSVarDef {
-    JSAtom var_name;
-    int scope_level;   /* index into fd->scopes of this variable lexical scope */
-    int scope_next;    /* index into fd->vars of the next variable in the
-                        * same or enclosing lexical scope */
-    uint8_t is_function : 1; /* only used for debug */
-    uint8_t is_func_var : 1; /* used for the function self reference */
-    uint8_t is_const : 1;
-    uint8_t is_lexical : 1;
-    uint8_t is_captured : 1;
-    uint8_t var_kind : 3; /* see JSVarKindEnum */
-    int func_pool_idx : 24; /* only used during compilation */
-} JSVarDef;
-
-/* for the encoding of the pc2line table */
-#define PC2LINE_BASE     (-1)
-#define PC2LINE_RANGE    5
-#define PC2LINE_OP_FIRST 1
-#define PC2LINE_DIFF_PC_MAX ((255 - PC2LINE_OP_FIRST) / PC2LINE_RANGE)
-
-typedef enum JSFunctionKindEnum {
-    JS_FUNC_NORMAL = 0,
-    JS_FUNC_GENERATOR = (1 << 0),
-    JS_FUNC_ASYNC = (1 << 1),
-    JS_FUNC_ASYNC_GENERATOR = (JS_FUNC_GENERATOR | JS_FUNC_ASYNC),
-} JSFunctionKindEnum;
-
-typedef struct JSFunctionBytecode {
-    JSRefCountHeader header; /* must come first, 32-bit */
-    JSGCHeader gc_header; /* must come after header, 8-bit */
-    uint8_t js_mode;
-    uint8_t has_prototype : 1; /* true if a prototype field is necessary */
-    uint8_t has_simple_parameter_list : 1;
-    uint8_t is_derived_class_constructor : 1;
-    /* true if home_object needs to be initialized */
-    uint8_t need_home_object : 1;
-    uint8_t func_kind : 2;
-    uint8_t new_target_allowed : 1;
-    uint8_t super_call_allowed : 1;
-    uint8_t super_allowed : 1;
-    uint8_t arguments_allowed : 1;
-    uint8_t has_debug : 1;
-    uint8_t read_only_bytecode : 1;
-    /* XXX: 4 bits available */
-    uint8_t *byte_code_buf; /* (self pointer) */
-    int byte_code_len;
-    JSAtom func_name;
-    JSVarDef *vardefs; /* arguments + local variables (arg_count + var_count) (self pointer) */
-    JSClosureVar *closure_var; /* list of variables in the closure (self pointer) */
-    uint16_t arg_count;
-    uint16_t var_count;
-    uint16_t defined_arg_count; /* for length function property */
-    uint16_t stack_size; /* maximum stack size */
-    JSValue *cpool; /* constant pool (self pointer) */
-    int cpool_count;
-    int closure_var_count;
-    struct {
-        /* debug info, move to separate structure to save memory? */
-        JSAtom filename;
-        int line_num;
-        int source_len;
-        int pc2line_len;
-        uint8_t *pc2line_buf;
-        char *source;
-    } debug;
-} JSFunctionBytecode;
-
-typedef struct JSBoundFunction {
-    JSValue func_obj;
-    JSValue this_val;
-    int argc;
-    JSValue argv[0];
-} JSBoundFunction;
-
-typedef enum JSIteratorKindEnum {
-    JS_ITERATOR_KIND_KEY,
-    JS_ITERATOR_KIND_VALUE,
-    JS_ITERATOR_KIND_KEY_AND_VALUE,
-} JSIteratorKindEnum;
-
-typedef struct JSForInIterator {
-    JSValue obj;
-    BOOL is_array;
-    uint32_t array_length;
-    uint32_t idx;
-} JSForInIterator;
-
-typedef struct JSRegExp {
-    JSString *pattern;
-    JSString *bytecode; /* also contains the flags */
-} JSRegExp;
-
-typedef struct JSProxyData {
-    JSValue target;
-    JSValue handler;
-    JSValue proto;
-    uint8_t is_func;
-    uint8_t is_revoked;
-} JSProxyData;
-
-typedef struct JSArrayBuffer {
-    int byte_length; /* 0 if detached */
-    uint8_t detached;
-    uint8_t shared; /* if shared, the array buffer cannot be detached */
-    uint8_t *data; /* NULL if detached */
-    struct list_head array_list;
-    void *opaque;
-    JSFreeArrayBufferDataFunc *free_func;
-} JSArrayBuffer;
-
-typedef struct JSTypedArray {
-    struct list_head link; /* link to arraybuffer */
-    JSObject *obj; /* back pointer to the TypedArray/DataView object */
-    JSObject *buffer; /* based array buffer */
-    uint32_t offset; /* offset in the array buffer */
-    uint32_t length; /* length in the array buffer */
-} JSTypedArray;
-
-typedef struct JSAsyncFunctionState {
-    JSValue this_val; /* 'this' generator argument */
-    int argc; /* number of function arguments */
-    BOOL throw_flag; /* used to throw an exception in JS_CallInternal() */
-    JSStackFrame frame;
-} JSAsyncFunctionState;
-
-/* XXX: could use an object instead to avoid the
-   JS_TAG_ASYNC_FUNCTION tag for the GC */
-typedef struct JSAsyncFunctionData {
-    JSRefCountHeader header; /* must come first, 32-bit */
-    JSGCHeader gc_header; /* must come after JSRefCountHeader, 8-bit */
-    JSValue resolving_funcs[2];
-    BOOL is_active; /* true if the async function state is valid */
-    JSAsyncFunctionState func_state;
-} JSAsyncFunctionData;
-
-typedef struct JSReqModuleEntry {
-    JSAtom module_name;
-    JSModuleDef *module; /* used using resolution */
-} JSReqModuleEntry;
-
-typedef enum JSExportTypeEnum {
-    JS_EXPORT_TYPE_LOCAL,
-    JS_EXPORT_TYPE_INDIRECT,
-} JSExportTypeEnum;
-
-typedef struct JSExportEntry {
-    union {
-        struct {
-            int var_idx; /* closure variable index */
-            JSVarRef *var_ref; /* if != NULL, reference to the variable */
-        } local; /* for local export */
-        int req_module_idx; /* module for indirect export */
-    } u;
-    JSExportTypeEnum export_type;
-    JSAtom local_name; /* '*' if export ns from. not used for local
-                          export after compilation */
-    JSAtom export_name; /* exported variable name */
-} JSExportEntry;
-
-typedef struct JSStarExportEntry {
-    int req_module_idx; /* in req_module_entries */
-} JSStarExportEntry;
-
-typedef struct JSImportEntry {
-    int var_idx; /* closure variable index */
-    JSAtom import_name;
-    int req_module_idx; /* in req_module_entries */
-} JSImportEntry;
-
-struct JSModuleDef {
-    JSRefCountHeader header; /* must come first, 32-bit */
-    JSAtom module_name;
-    struct list_head link;
-
-    JSReqModuleEntry *req_module_entries;
-    int req_module_entries_count;
-    int req_module_entries_size;
-
-    JSExportEntry *export_entries;
-    int export_entries_count;
-    int export_entries_size;
-
-    JSStarExportEntry *star_export_entries;
-    int star_export_entries_count;
-    int star_export_entries_size;
-
-    JSImportEntry *import_entries;
-    int import_entries_count;
-    int import_entries_size;
-
-    JSValue module_ns;
-    JSValue func_obj; /* only used for JS modules */
-    JSModuleInitFunc *init_func; /* only used for C modules */
-    BOOL resolved : 8;
-    BOOL instantiated : 8;
-    BOOL evaluated : 8;
-    BOOL eval_mark : 8; /* temporary use during js_evaluate_module() */
-    /* true if evaluation yielded an exception. It is saved in
-       eval_exception */
-    BOOL eval_has_exception : 8; 
-    JSValue eval_exception;
-};
-
-typedef struct JSJobEntry {
-    struct list_head link;
-    JSContext *ctx;
-    JSJobFunc *job_func;
-    int argc;
-    JSValue argv[0];
-} JSJobEntry;
-
-typedef struct JSProperty {
-    union {
-        JSValue value;      /* JS_PROP_NORMAL */
-        struct {            /* JS_PROP_GETSET */
-            JSObject *getter; /* NULL if undefined */
-            JSObject *setter; /* NULL if undefined */
-        } getset;
-        JSVarRef *var_ref;  /* JS_PROP_VARREF */
-        struct {            /* JS_PROP_AUTOINIT */
-            int (*init_func)(JSContext *ctx, JSObject *obj,
-                             JSAtom prop, void *opaque);
-            void *opaque;
-        } init;
-    } u;
-} JSProperty;
-
-#define JS_PROP_INITIAL_SIZE 2
-#define JS_PROP_INITIAL_HASH_SIZE 4 /* must be a power of two */
-#define JS_ARRAY_INITIAL_SIZE 2
-
-typedef struct JSShapeProperty {
-    uint32_t hash_next : 26; /* 0 if last in list */
-    uint32_t flags : 6;   /* JS_PROP_XXX */
-    JSAtom atom; /* JS_ATOM_NULL = free property entry */
-} JSShapeProperty;
-
-struct JSShape {
-    uint32_t prop_hash_end[0]; /* hash table of size hash_mask + 1
-                                  before the start of the structure. */
-    JSRefCountHeader header; /* must come first, 32-bit */
-    JSGCHeader gc_header; /* must come after JSRefCountHeader, 8-bit */
-    /* true if the shape is inserted in the shape hash table. If not,
-       JSShape.hash is not valid */
-    uint8_t is_hashed;
-    /* If true, the shape may have small array index properties 'n' with 0
-       <= n <= 2^31-1. If false, the shape is guaranteed not to have
-       small array index properties */
-    uint8_t has_small_array_index;
-    uint32_t hash; /* current hash value */
-    uint32_t prop_hash_mask;
-    int prop_size; /* allocated properties */
-    int prop_count;
-    JSShape *shape_hash_next; /* in JSRuntime.shape_hash[h] list */
-    JSObject *proto;
-    JSShapeProperty prop[0]; /* prop_size elements */
-};
-struct JSObject {
-    JSRefCountHeader header; /* must come first, 32-bit */
-    JSGCHeader gc_header; /* must come after JSRefCountHeader, 8-bit */
-    uint8_t extensible : 1;
-    uint8_t free_mark : 1; /* only used when freeing objects with cycles */
-    uint8_t is_exotic : 1; /* TRUE if object has exotic property handlers */
-    uint8_t fast_array : 1; /* TRUE if u.array is used for get/put */
-    uint8_t is_constructor : 1; /* TRUE if object is a constructor function */
-    uint8_t is_uncatchable_error : 1; /* if TRUE, error is not catchable */
-    uint8_t is_class : 1; /* TRUE if object is a class constructor */
-    uint8_t tmp_mark : 1; /* used in JS_WriteObjectRec() */
-    uint16_t class_id; /* see JS_CLASS_x */
-    /* byte offsets: 8/8 */
-    struct list_head link; /* object list */
-    /* byte offsets: 16/24 */
-    JSShape *shape; /* prototype and property names + flag */
-    JSProperty *prop; /* array of properties */
-    /* byte offsets: 24/40 */
-    struct JSMapRecord *first_weak_ref; /* XXX: use a bit and an external hash table? */
-    /* byte offsets: 28/48 */
-    union {
-        void *opaque;
-        struct JSBoundFunction *bound_function; /* JS_CLASS_BOUND_FUNCTION */
-        struct JSCFunctionDataRecord *c_function_data_record; /* JS_CLASS_C_FUNCTION_DATA */
-        struct JSForInIterator *for_in_iterator; /* JS_CLASS_FOR_IN_ITERATOR */
-        struct JSArrayBuffer *array_buffer; /* JS_CLASS_ARRAY_BUFFER, JS_CLASS_SHARED_ARRAY_BUFFER */
-        struct JSTypedArray *typed_array; /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_DATAVIEW */
-#ifdef CONFIG_BIGNUM
-        struct JSFloatEnv *float_env; /* JS_CLASS_FLOAT_ENV */
-#endif
-        struct JSMapState *map_state;   /* JS_CLASS_MAP..JS_CLASS_WEAKSET */
-        struct JSMapIteratorData *map_iterator_data; /* JS_CLASS_MAP_ITERATOR, JS_CLASS_SET_ITERATOR */
-        struct JSArrayIteratorData *array_iterator_data; /* JS_CLASS_ARRAY_ITERATOR, JS_CLASS_STRING_ITERATOR */
-        struct JSRegExpStringIteratorData *regexp_string_iterator_data; /* JS_CLASS_REGEXP_STRING_ITERATOR */
-        struct JSGeneratorData *generator_data; /* JS_CLASS_GENERATOR */
-        struct JSProxyData *proxy_data; /* JS_CLASS_PROXY */
-        struct JSPromiseData *promise_data; /* JS_CLASS_PROMISE */
-        struct JSPromiseFunctionData *promise_function_data; /* JS_CLASS_PROMISE_RESOLVE_FUNCTION, JS_CLASS_PROMISE_REJECT_FUNCTION */
-        struct JSAsyncFunctionData *async_function_data; /* JS_CLASS_ASYNC_FUNCTION_RESOLVE, JS_CLASS_ASYNC_FUNCTION_REJECT */
-        struct JSAsyncFromSyncIteratorData *async_from_sync_iterator_data; /* JS_CLASS_ASYNC_FROM_SYNC_ITERATOR */
-        struct JSAsyncGeneratorData *async_generator_data; /* JS_CLASS_ASYNC_GENERATOR */
-        struct { /* JS_CLASS_BYTECODE_FUNCTION: 12/24 bytes */
-            /* also used by JS_CLASS_GENERATOR_FUNCTION, JS_CLASS_ASYNC_FUNCTION and JS_CLASS_ASYNC_GENERATOR_FUNCTION */
-            struct JSFunctionBytecode *function_bytecode;
-            JSVarRef **var_refs;
-            JSObject *home_object; /* for 'super' access */
-        } func;
-        struct { /* JS_CLASS_C_FUNCTION: 8/12 bytes */
-            JSCFunctionType c_function;
-            uint8_t length;
-            uint8_t cproto;
-            int16_t magic;
-        } cfunc;
-        /* array part for fast arrays and typed arrays */
-        struct { /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS, JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */
-            union {
-                uint32_t size;          /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS */
-                struct JSTypedArray *typed_array; /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */
-            } u1;
-            union {
-                JSValue *values;        /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS */ 
-                void *ptr;              /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */
-                int8_t *int8_ptr;       /* JS_CLASS_INT8_ARRAY */
-                uint8_t *uint8_ptr;     /* JS_CLASS_UINT8_ARRAY, JS_CLASS_UINT8C_ARRAY */
-                int16_t *int16_ptr;     /* JS_CLASS_INT16_ARRAY */
-                uint16_t *uint16_ptr;   /* JS_CLASS_UINT16_ARRAY */
-                int32_t *int32_ptr;     /* JS_CLASS_INT32_ARRAY */
-                uint32_t *uint32_ptr;   /* JS_CLASS_UINT32_ARRAY */
-                int64_t *int64_ptr;     /* JS_CLASS_INT64_ARRAY */
-                uint64_t *uint64_ptr;   /* JS_CLASS_UINT64_ARRAY */
-                float *float_ptr;       /* JS_CLASS_FLOAT32_ARRAY */
-                double *double_ptr;     /* JS_CLASS_FLOAT64_ARRAY */
-            } u;
-            uint32_t count; /* <= 2^31-1. 0 for a detached typed array */
-        } array;    /* 12/20 bytes */
-        JSRegExp regexp;    /* JS_CLASS_REGEXP: 8/16 bytes */
-        JSValue object_data;    /* for JS_SetObjectData(): 8/16/16 bytes */
-    } u;
-    /* byte sizes: 40/48/72 */
-};
-enum {
-    JS_ATOM_NULL,
-#define DEF(name, str) JS_ATOM_ ## name,
-#include "quickjs-atom.h"
-#undef DEF
-    JS_ATOM_END,
-};
-#define JS_ATOM_LAST_KEYWORD JS_ATOM_super
-#define JS_ATOM_LAST_STRICT_KEYWORD JS_ATOM_yield
-
-static const char js_atom_init[] =
-#define DEF(name, str) str "\0"
-#include "quickjs-atom.h"
-#undef DEF
-;
-
-typedef enum OPCodeFormat {
-#define FMT(f) OP_FMT_ ## f,
-#define DEF(id, size, n_pop, n_push, f)
-#include "quickjs-opcode.h"
-#undef DEF
-#undef FMT
-} OPCodeFormat;
-
-typedef enum OPCodeEnum {
-#define FMT(f)
-#define DEF(id, size, n_pop, n_push, f) OP_ ## id,
-#define def(id, size, n_pop, n_push, f)
-#include "quickjs-opcode.h"
-#undef def
-#undef DEF
-#undef FMT
-    OP_COUNT, /* excluding temporary opcodes */
-    /* temporary opcodes : overlap with the short opcodes */
-    OP_TEMP_START = OP_nop + 1,
-    OP___dummy = OP_TEMP_START - 1,
-#define FMT(f)
-#define DEF(id, size, n_pop, n_push, f)
-#define def(id, size, n_pop, n_push, f) OP_ ## id,
-#include "quickjs-opcode.h"
-#undef def
-#undef DEF
-#undef FMT
-    OP_TEMP_END,
-} OPCodeEnum;
-
-static int JS_InitAtoms(JSRuntime *rt);
-static JSAtom __JS_NewAtomInit(JSRuntime *rt, const char *str, int len,
-                               int atom_type);
-static void JS_FreeAtomStruct(JSRuntime *rt, JSAtomStruct *p);
-static void free_function_bytecode(JSRuntime *rt, JSFunctionBytecode *b);
-static JSValue JS_CallInternal(JSContext *ctx, JSValueConst func_obj,
-                               JSValueConst this_obj, JSValueConst new_target,
-                               int argc, JSValue *argv, int flags);
-static JSValue JS_CallConstructorInternal(JSContext *ctx,
-                                          JSValueConst func_obj,
-                                          JSValueConst new_target,
-                                          int argc, JSValue *argv, int flags);
-static JSValue JS_CallFree(JSContext *ctx, JSValue func_obj, JSValueConst this_obj,
-                           int argc, JSValueConst *argv);
-static JSValue JS_InvokeFree(JSContext *ctx, JSValue this_val, JSAtom atom,
-                             int argc, JSValueConst *argv);
-static __exception int JS_ToArrayLengthFree(JSContext *ctx, uint32_t *plen,
-                                            JSValue val);
-static JSValue JS_EvalObject(JSContext *ctx, JSValueConst this_obj,
-                             JSValueConst val, int flags, int scope_idx);
-JSValue __attribute__((format(printf, 2, 3))) JS_ThrowInternalError(JSContext *ctx, const char *fmt, ...);
-static __attribute__((unused)) void JS_DumpAtoms(JSRuntime *rt);
-static __attribute__((unused)) void JS_DumpString(JSRuntime *rt,
-                                                  const JSString *p);
-static __attribute__((unused)) void JS_DumpObjectHeader(JSRuntime *rt);
-static __attribute__((unused)) void JS_DumpObject(JSRuntime *rt, JSObject *p);
-static __attribute__((unused)) void JS_DumpValueShort(JSRuntime *rt,
-                                                      JSValueConst val);
-static __attribute__((unused)) void JS_DumpValue(JSContext *ctx, JSValueConst val);
-static __attribute__((unused)) void JS_PrintValue(JSContext *ctx,
-                                                  const char *str,
-                                                  JSValueConst val);
-static __attribute__((unused)) void JS_DumpShapes(JSRuntime *rt);
-static JSValue js_function_apply(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv, int magic);
-static void js_array_finalizer(JSRuntime *rt, JSValue val);
-static void js_array_mark(JSRuntime *rt, JSValueConst val,
-                          JS_MarkFunc *mark_func);
-static void js_object_data_finalizer(JSRuntime *rt, JSValue val);
-static void js_object_data_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_bytecode_function_finalizer(JSRuntime *rt, JSValue val);
-static void js_bytecode_function_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_bound_function_finalizer(JSRuntime *rt, JSValue val);
-static void js_bound_function_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_for_in_iterator_finalizer(JSRuntime *rt, JSValue val);
-static void js_for_in_iterator_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_regexp_finalizer(JSRuntime *rt, JSValue val);
-static void js_array_buffer_finalizer(JSRuntime *rt, JSValue val);
-static void js_typed_array_finalizer(JSRuntime *rt, JSValue val);
-static void js_typed_array_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_proxy_finalizer(JSRuntime *rt, JSValue val);
-static void js_proxy_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_map_finalizer(JSRuntime *rt, JSValue val);
-static void js_map_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_map_iterator_finalizer(JSRuntime *rt, JSValue val);
-static void js_map_iterator_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_array_iterator_finalizer(JSRuntime *rt, JSValue val);
-static void js_array_iterator_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_regexp_string_iterator_finalizer(JSRuntime *rt, JSValue val);
-static void js_regexp_string_iterator_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_generator_finalizer(JSRuntime *rt, JSValue obj);
-static void js_generator_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_promise_finalizer(JSRuntime *rt, JSValue val);
-static void js_promise_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static void js_promise_resolve_function_finalizer(JSRuntime *rt, JSValue val);
-static void js_promise_resolve_function_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func);
-static JSValue js_promise_resolve_function_call(JSContext *ctx,
-                                                JSValueConst func_obj,
-                                                JSValueConst this_val,
-                                                int argc, JSValueConst *argv);
-static JSValue JS_ToStringFree(JSContext *ctx, JSValue val);
-static int JS_ToBoolFree(JSContext *ctx, JSValue val);
-static int JS_ToInt32Free(JSContext *ctx, int32_t *pres, JSValue val);
-static int JS_ToFloat64Free(JSContext *ctx, double *pres, JSValue val);
-static int JS_ToUint8ClampFree(JSContext *ctx, int32_t *pres, JSValue val);
-static JSValue js_compile_regexp(JSContext *ctx, JSValueConst pattern,
-                                 JSValueConst flags);
-static JSValue js_regexp_constructor_internal(JSContext *ctx, JSValueConst ctor,
-                                              JSValue pattern, JSValue bc);
-static void gc_decref(JSRuntime *rt);
-static int JS_NewClass1(JSRuntime *rt, JSClassID class_id,
-                        const JSClassDef *class_def, JSAtom name);
-
-typedef enum JSStrictEqModeEnum {
-    JS_EQ_STRICT,
-    JS_EQ_SAME_VALUE,
-    JS_EQ_SAME_VALUE_ZERO,
-} JSStrictEqModeEnum;
-
-static BOOL js_strict_eq2(JSContext *ctx, JSValue op1, JSValue op2,
-                          JSStrictEqModeEnum eq_mode);
-static BOOL js_strict_eq(JSContext *ctx, JSValue op1, JSValue op2);
-static BOOL js_same_value(JSContext *ctx, JSValueConst op1, JSValueConst op2);
-static BOOL js_same_value_zero(JSContext *ctx, JSValueConst op1, JSValueConst op2);
-static JSValue JS_ToObject(JSContext *ctx, JSValueConst val);
-static JSValue JS_ToObjectFree(JSContext *ctx, JSValue val);
-static JSProperty *add_property(JSContext *ctx,
-                                JSObject *p, JSAtom prop, int prop_flags);
-#ifdef CONFIG_BIGNUM
-static void js_float_env_finalizer(JSRuntime *rt, JSValue val);
-static JSValue JS_NewBigFloat(JSContext *ctx, bf_t *a);
-static JSValue JS_NewBigInt2(JSContext *ctx, bf_t *a, BOOL force_bigint);
-static JSValue JS_NewBigInt(JSContext *ctx, bf_t *a);
-static int JS_ToBigInt64Free(JSContext *ctx, int64_t *pres, JSValue val);
-static bf_t *JS_ToBigFloat(JSContext *ctx, BOOL *pis_float, bf_t *buf,
-                           JSValueConst val);
-#endif
-JSValue JS_ThrowOutOfMemory(JSContext *ctx);
-static JSValue JS_ThrowTypeErrorRevokedProxy(JSContext *ctx);
-static JSValue js_proxy_call(JSContext *ctx, JSValueConst func_obj,
-                             JSValueConst this_obj,
-                             int argc, JSValueConst *argv);
-static JSValue js_proxy_call_constructor(JSContext *ctx, JSValueConst func_obj,
-                                         JSValueConst new_target,
-                                         int argc, JSValueConst *argv);
-static JSValueConst js_proxy_getPrototypeOf(JSContext *ctx, JSValueConst obj);
-static int js_proxy_setPrototypeOf(JSContext *ctx, JSValueConst obj,
-                                   JSValueConst proto_val, BOOL throw_flag);
-static int js_proxy_isExtensible(JSContext *ctx, JSValueConst obj);
-static int js_proxy_preventExtensions(JSContext *ctx, JSValueConst obj);
-static int js_proxy_isArray(JSContext *ctx, JSValueConst obj);
-static int JS_CreateProperty(JSContext *ctx, JSObject *p,
-                             JSAtom prop, JSValueConst val,
-                             JSValueConst getter, JSValueConst setter,
-                             int flags);
-static int js_string_memcmp(const JSString *p1, const JSString *p2, int len);
-static void reset_weak_ref(JSRuntime *rt, JSObject *p);
-static BOOL typed_array_is_detached(JSContext *ctx, JSObject *p);
-static uint32_t typed_array_get_length(JSContext *ctx, JSObject *p);
-static JSValue JS_ThrowTypeErrorDetachedArrayBuffer(JSContext *ctx);
-static JSVarRef *get_var_ref(JSContext *ctx, JSStackFrame *sf, int var_idx,
-                             BOOL is_arg);
-static JSValue js_generator_function_call(JSContext *ctx, JSValueConst func_obj,
-                                          JSValueConst this_obj,
-                                          int argc, JSValueConst *argv);
-static void js_async_function_resolve_finalizer(JSRuntime *rt, JSValue val);
-static void js_async_function_resolve_mark(JSRuntime *rt, JSValueConst val,
-                                           JS_MarkFunc *mark_func);
-static JSValue JS_EvalInternal(JSContext *ctx, JSValueConst this_obj,
-                               const char *input, size_t input_len,
-                               const char *filename, int flags, int scope_idx);
-static void js_free_module_def(JSContext *ctx, JSModuleDef *m);
-static JSValue js_dynamic_import(JSContext *ctx, JSValueConst specifier);
-static void free_var_ref(JSRuntime *rt, JSVarRef *var_ref);
-static JSValue js_new_promise_capability(JSContext *ctx,
-                                         JSValue *resolving_funcs,
-                                         JSValueConst ctor);
-static __exception int perform_promise_then(JSContext *ctx,
-                                            JSValueConst promise,
-                                            JSValueConst *resolve_reject,
-                                            JSValueConst *cap_resolving_funcs);
-static JSValue js_promise_resolve(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv, int magic);
-static int js_string_compare(JSContext *ctx,
-                             const JSString *p1, const JSString *p2);
-static JSValue JS_ToNumber(JSContext *ctx, JSValueConst val);
-static int JS_SetPropertyValue(JSContext *ctx, JSValueConst this_obj,
-                               JSValue prop, JSValue val, int flags);
-static int JS_NumberIsInteger(JSContext *ctx, JSValueConst val);
-static BOOL JS_NumberIsNegativeOrMinusZero(JSContext *ctx, JSValueConst val);
-static JSValue JS_ToNumberFree(JSContext *ctx, JSValue val);
-static int JS_GetOwnPropertyInternal(JSContext *ctx, JSPropertyDescriptor *desc,
-                                     JSObject *p, JSAtom prop);
-static void js_free_desc(JSContext *ctx, JSPropertyDescriptor *desc);
-static void async_func_mark(JSRuntime *rt, JSAsyncFunctionState *s,
-                            JS_MarkFunc *mark_func);
-static void JS_AddIntrinsicBasicObjects(JSContext *ctx);
-static void js_free_shape(JSRuntime *rt, JSShape *sh);
-static void js_free_shape_null(JSRuntime *rt, JSShape *sh);
-static int js_shape_prepare_update(JSContext *ctx, JSObject *p,
-                                   JSShapeProperty **pprs);
-static int init_shape_hash(JSRuntime *rt);
-static __exception int js_get_length32(JSContext *ctx, uint32_t *pres,
-                                       JSValueConst obj);
-static __exception int js_get_length64(JSContext *ctx, int64_t *pres,
-                                       JSValueConst obj);
-static BOOL js_get_fast_array(JSContext *ctx, JSValueConst obj,
-                              JSValue **arrpp, uint32_t *countp);
-static JSValue JS_CreateAsyncFromSyncIterator(JSContext *ctx,
-                                              JSValueConst sync_iter);
-static void js_c_function_data_finalizer(JSRuntime *rt, JSValue val);
-static void js_c_function_data_mark(JSRuntime *rt, JSValueConst val,
-                                    JS_MarkFunc *mark_func);
-static JSValue js_c_function_data_call(JSContext *ctx, JSValueConst func_obj,
-                                       JSValueConst this_val,
-                                       int argc, JSValueConst *argv);
-static JSAtom js_value_to_atom(JSContext *ctx, JSValueConst val);
-static JSAtom js_symbol_to_atom(JSContext *ctx, JSValue val);
-
-static const JSClassExoticMethods js_arguments_exotic_methods;
-static const JSClassExoticMethods js_string_exotic_methods;
-static const JSClassExoticMethods js_proxy_exotic_methods;
-static const JSClassExoticMethods js_module_ns_exotic_methods;
-static JSClassID js_class_id_alloc = JS_CLASS_INIT_COUNT;
-
-JS_BOOL JS_IsNumber(JSValueConst v)
-{
-#ifdef CONFIG_BIGNUM
-    int tag = JS_VALUE_GET_TAG(v);
-    return tag == JS_TAG_INT || tag == JS_TAG_BIG_INT ||
-        tag == JS_TAG_BIG_FLOAT || JS_TAG_IS_FLOAT64(tag);
-#else
-    int tag = JS_VALUE_GET_TAG(v);
-    return tag == JS_TAG_INT || JS_TAG_IS_FLOAT64(tag);
-#endif
-}
-
-static void js_trigger_gc(JSRuntime *rt, size_t size)
-{
-    BOOL force_gc;
-#ifdef FORCE_GC_AT_MALLOC
-    force_gc = TRUE;
-#else
-    force_gc = ((rt->malloc_state.malloc_size + size) >
-                rt->malloc_gc_threshold);
-#endif
-    if (force_gc) {
-#ifdef DUMP_GC
-        printf("GC: size=%" PRIu64 "\n",
-               (uint64_t)rt->malloc_state.malloc_size);
-#endif
-        JS_RunGC(rt);
-        rt->malloc_gc_threshold = rt->malloc_state.malloc_size +
-            (rt->malloc_state.malloc_size >> 1);
-    }
-}
-
-static size_t js_malloc_usable_size_unknown(const void *ptr)
-{
-    return 0;
-}
-
-void *js_malloc_rt(JSRuntime *rt, size_t size)
-{
-    return rt->mf.js_malloc(&rt->malloc_state, size);
-}
-
-void js_free_rt(JSRuntime *rt, void *ptr)
-{
-    rt->mf.js_free(&rt->malloc_state, ptr);
-}
-
-void *js_realloc_rt(JSRuntime *rt, void *ptr, size_t size)
-{
-    return rt->mf.js_realloc(&rt->malloc_state, ptr, size);
-}
-
-size_t js_malloc_usable_size_rt(JSRuntime *rt, const void *ptr)
-{
-    return rt->mf.js_malloc_usable_size(ptr);
-}
-
-void *js_mallocz_rt(JSRuntime *rt, size_t size)
-{
-    void *ptr;
-    ptr = js_malloc_rt(rt, size);
-    if (!ptr)
-        return NULL;
-    return memset(ptr, 0, size);
-}
-
-#ifdef CONFIG_BIGNUM
-/* called by libbf */
-static void *js_bf_realloc(void *opaque, void *ptr, size_t size)
-{
-    JSRuntime *rt = opaque;
-    return js_realloc_rt(rt, ptr, size);
-}
-#endif /* CONFIG_BIGNUM */
-
-/* Throw out of memory in case of error */
-void *js_malloc(JSContext *ctx, size_t size)
-{
-    void *ptr;
-    ptr = js_malloc_rt(ctx->rt, size);
-    if (unlikely(!ptr)) {
-        JS_ThrowOutOfMemory(ctx);
-        return NULL;
-    }
-    return ptr;
-}
-
-/* Throw out of memory in case of error */
-void *js_mallocz(JSContext *ctx, size_t size)
-{
-    void *ptr;
-    ptr = js_mallocz_rt(ctx->rt, size);
-    if (unlikely(!ptr)) {
-        JS_ThrowOutOfMemory(ctx);
-        return NULL;
-    }
-    return ptr;
-}
-
-void js_free(JSContext *ctx, void *ptr)
-{
-    js_free_rt(ctx->rt, ptr);
-}
-
-/* Throw out of memory in case of error */
-void *js_realloc(JSContext *ctx, void *ptr, size_t size)
-{
-    void *ret;
-    ret = js_realloc_rt(ctx->rt, ptr, size);
-    if (unlikely(!ret && size != 0)) {
-        JS_ThrowOutOfMemory(ctx);
-        return NULL;
-    }
-    return ret;
-}
-
-/* store extra allocated size in *pslack if successful */
-void *js_realloc2(JSContext *ctx, void *ptr, size_t size, size_t *pslack)
-{
-    void *ret;
-    ret = js_realloc_rt(ctx->rt, ptr, size);
-    if (unlikely(!ret && size != 0)) {
-        JS_ThrowOutOfMemory(ctx);
-        return NULL;
-    }
-    if (pslack) {
-        size_t new_size = js_malloc_usable_size_rt(ctx->rt, ret);
-        *pslack = (new_size > size) ? new_size - size : 0;
-    }
-    return ret;
-}
-
-size_t js_malloc_usable_size(JSContext *ctx, const void *ptr)
-{
-    return js_malloc_usable_size_rt(ctx->rt, ptr);
-}
-
-/* Throw out of memory exception in case of error */
-char *js_strndup(JSContext *ctx, const char *s, size_t n)
-{
-    char *ptr;
-    ptr = js_malloc(ctx, n + 1);
-    if (ptr) {
-        memcpy(ptr, s, n);
-        ptr[n] = '\0';
-    }
-    return ptr;
-}
-
-char *js_strdup(JSContext *ctx, const char *str)
-{
-    return js_strndup(ctx, str, strlen(str));
-}
-
-static inline void js_dbuf_init(JSContext *ctx, DynBuf *s)
-{
-    dbuf_init2(s, ctx->rt, (DynBufReallocFunc *)js_realloc_rt);
-}
-
-static inline int is_digit(int c) {
-    return c >= '0' && c <= '9';
-}
-
-typedef struct JSClassShortDef {
-    JSAtom class_name;
-    JSClassFinalizer *finalizer;
-    JSClassGCMark *gc_mark;
-} JSClassShortDef;
-
-static JSClassShortDef const js_std_class_def[] = {
-    { JS_ATOM_Object, NULL, NULL },                             /* JS_CLASS_OBJECT */
-    { JS_ATOM_Array, js_array_finalizer, js_array_mark },       /* JS_CLASS_ARRAY */
-    { JS_ATOM_Error, NULL, NULL },                              /* JS_CLASS_ERROR */
-    { JS_ATOM_Number, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_NUMBER */
-    { JS_ATOM_String, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_STRING */
-    { JS_ATOM_Boolean, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BOOLEAN */
-    { JS_ATOM_Symbol, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_SYMBOL */
-    { JS_ATOM_Arguments, js_array_finalizer, js_array_mark },   /* JS_CLASS_ARGUMENTS */
-    { JS_ATOM_Arguments, NULL, NULL },                          /* JS_CLASS_MAPPED_ARGUMENTS */
-    { JS_ATOM_Date, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_DATE */
-    { JS_ATOM_Object, NULL, NULL },                             /* JS_CLASS_MODULE_NS */
-    { JS_ATOM_Function, NULL, NULL },                           /* JS_CLASS_C_FUNCTION */
-    { JS_ATOM_Function, js_bytecode_function_finalizer, js_bytecode_function_mark }, /* JS_CLASS_BYTECODE_FUNCTION */
-    { JS_ATOM_Function, js_bound_function_finalizer, js_bound_function_mark }, /* JS_CLASS_BOUND_FUNCTION */
-    { JS_ATOM_Function, js_c_function_data_finalizer, js_c_function_data_mark }, /* JS_CLASS_C_FUNCTION_DATA */
-    { JS_ATOM_GeneratorFunction, js_bytecode_function_finalizer, js_bytecode_function_mark },  /* JS_CLASS_GENERATOR_FUNCTION */
-    { JS_ATOM_ForInIterator, js_for_in_iterator_finalizer, js_for_in_iterator_mark },      /* JS_CLASS_FOR_IN_ITERATOR */
-    { JS_ATOM_RegExp, js_regexp_finalizer, NULL },                              /* JS_CLASS_REGEXP */
-    { JS_ATOM_ArrayBuffer, js_array_buffer_finalizer, NULL },                   /* JS_CLASS_ARRAY_BUFFER */
-    { JS_ATOM_SharedArrayBuffer, js_array_buffer_finalizer, NULL },             /* JS_CLASS_SHARED_ARRAY_BUFFER */
-    { JS_ATOM_Uint8ClampedArray, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT8C_ARRAY */
-    { JS_ATOM_Int8Array, js_typed_array_finalizer, js_typed_array_mark },       /* JS_CLASS_INT8_ARRAY */
-    { JS_ATOM_Uint8Array, js_typed_array_finalizer, js_typed_array_mark },      /* JS_CLASS_UINT8_ARRAY */
-    { JS_ATOM_Int16Array, js_typed_array_finalizer, js_typed_array_mark },      /* JS_CLASS_INT16_ARRAY */
-    { JS_ATOM_Uint16Array, js_typed_array_finalizer, js_typed_array_mark },     /* JS_CLASS_UINT16_ARRAY */
-    { JS_ATOM_Int32Array, js_typed_array_finalizer, js_typed_array_mark },      /* JS_CLASS_INT32_ARRAY */
-    { JS_ATOM_Uint32Array, js_typed_array_finalizer, js_typed_array_mark },     /* JS_CLASS_UINT32_ARRAY */
-#ifdef CONFIG_BIGNUM
-    { JS_ATOM_BigInt64Array, js_typed_array_finalizer, js_typed_array_mark },   /* JS_CLASS_BIG_INT64_ARRAY */
-    { JS_ATOM_BigUint64Array, js_typed_array_finalizer, js_typed_array_mark },  /* JS_CLASS_BIG_UINT64_ARRAY */
-#endif
-    { JS_ATOM_Float32Array, js_typed_array_finalizer, js_typed_array_mark },    /* JS_CLASS_FLOAT32_ARRAY */
-    { JS_ATOM_Float64Array, js_typed_array_finalizer, js_typed_array_mark },    /* JS_CLASS_FLOAT64_ARRAY */
-    { JS_ATOM_DataView, js_typed_array_finalizer, js_typed_array_mark },        /* JS_CLASS_DATAVIEW */
-#ifdef CONFIG_BIGNUM
-    { JS_ATOM_BigInt, js_object_data_finalizer, js_object_data_mark },      /* JS_CLASS_BIG_INT */
-    { JS_ATOM_BigFloat, js_object_data_finalizer, js_object_data_mark },    /* JS_CLASS_BIG_FLOAT */
-    { JS_ATOM_BigFloatEnv, js_float_env_finalizer, NULL },      /* JS_CLASS_FLOAT_ENV */
-#endif
-    { JS_ATOM_Map, js_map_finalizer, js_map_mark },             /* JS_CLASS_MAP */
-    { JS_ATOM_Set, js_map_finalizer, js_map_mark },             /* JS_CLASS_SET */
-    { JS_ATOM_WeakMap, js_map_finalizer, js_map_mark },         /* JS_CLASS_WEAKMAP */
-    { JS_ATOM_WeakSet, js_map_finalizer, js_map_mark },         /* JS_CLASS_WEAKSET */
-    { JS_ATOM_Map_Iterator, js_map_iterator_finalizer, js_map_iterator_mark }, /* JS_CLASS_MAP_ITERATOR */
-    { JS_ATOM_Set_Iterator, js_map_iterator_finalizer, js_map_iterator_mark }, /* JS_CLASS_SET_ITERATOR */
-    { JS_ATOM_Array_Iterator, js_array_iterator_finalizer, js_array_iterator_mark }, /* JS_CLASS_ARRAY_ITERATOR */
-    { JS_ATOM_String_Iterator, js_array_iterator_finalizer, js_array_iterator_mark }, /* JS_CLASS_STRING_ITERATOR */
-    { JS_ATOM_RegExp_String_Iterator, js_regexp_string_iterator_finalizer, js_regexp_string_iterator_mark }, /* JS_CLASS_STRING_ITERATOR */
-    { JS_ATOM_Generator, js_generator_finalizer, js_generator_mark }, /* JS_CLASS_GENERATOR */
-};
-
-static int init_class_range(JSRuntime *rt, JSClassShortDef const *tab,
-                            int start, int count)
-{
-    JSClassDef cm_s, *cm = &cm_s;
-    int i, class_id;
-
-    for(i = 0; i < count; i++) {
-        class_id = i + start;
-        memset(cm, 0, sizeof(*cm));
-        cm->finalizer = tab[i].finalizer;
-        cm->gc_mark = tab[i].gc_mark;
-        if (JS_NewClass1(rt, class_id, cm, tab[i].class_name) < 0)
-            return -1;
-    }
-    return 0;
-}
-
-JSRuntime *JS_NewRuntime2(const JSMallocFunctions *mf, void *opaque)
-{
-    JSRuntime *rt;
-    JSMallocState ms;
-
-    memset(&ms, 0, sizeof(ms));
-    ms.opaque = opaque;
-    ms.malloc_limit = -1;
-
-    rt = mf->js_malloc(&ms, sizeof(JSRuntime));
-    if (!rt)
-        return NULL;
-    memset(rt, 0, sizeof(*rt));
-    rt->mf = *mf;
-    if (!rt->mf.js_malloc_usable_size) {
-        /* use dummy function if none provided */
-        rt->mf.js_malloc_usable_size = js_malloc_usable_size_unknown;
-    }
-    rt->malloc_state = ms;
-    rt->malloc_gc_threshold = 256 * 1024;
-
-#ifdef CONFIG_BIGNUM
-    bf_context_init(&rt->bf_ctx, js_bf_realloc, rt);
-#endif
-
-    init_list_head(&rt->context_list);
-    init_list_head(&rt->obj_list);
-#ifdef DUMP_LEAKS
-    init_list_head(&rt->string_list);
-#endif
-    init_list_head(&rt->job_list);
-
-    if (JS_InitAtoms(rt))
-        goto fail;
-
-    /* create the object, array and function classes */
-    if (init_class_range(rt, js_std_class_def, JS_CLASS_OBJECT,
-                         countof(js_std_class_def)) < 0)
-        goto fail;
-    rt->class_array[JS_CLASS_ARGUMENTS].exotic = &js_arguments_exotic_methods;
-    rt->class_array[JS_CLASS_STRING].exotic = &js_string_exotic_methods;
-    rt->class_array[JS_CLASS_MODULE_NS].exotic = &js_module_ns_exotic_methods;
-
-    rt->class_array[JS_CLASS_C_FUNCTION_DATA].call = js_c_function_data_call;
-    rt->class_array[JS_CLASS_GENERATOR_FUNCTION].call = js_generator_function_call;
-    if (init_shape_hash(rt))
-        goto fail;
-    return rt;
- fail:
-    JS_FreeRuntime(rt);
-    return NULL;
-}
-
-/* default memory allocation functions with memory limitation */
-static inline size_t js_def_malloc_usable_size(void *ptr)
-{
-#if defined(__APPLE__)
-    return malloc_size(ptr);
-#elif defined(_WIN32)
-    return _msize(ptr);
-#elif defined(EMSCRIPTEN)
-    return 0;
-#elif defined(__linux__)
-    return malloc_usable_size(ptr);
-#else
-    /* change this to `return 0;` if compilation fails */
-    return malloc_usable_size(ptr);
-#endif
-}
-
-static void *js_def_malloc(JSMallocState *s, size_t size)
-{
-    void *ptr;
-
-    /* Do not allocate zero bytes: behavior is platform dependent */
-    assert(size != 0);
-
-    if (unlikely(s->malloc_size + size > s->malloc_limit))
-        return NULL;
-
-    ptr = malloc(size);
-    if (!ptr)
-        return NULL;
-
-    s->malloc_count++;
-    s->malloc_size += js_def_malloc_usable_size(ptr) + MALLOC_OVERHEAD;
-    return ptr;
-}
-
-static void js_def_free(JSMallocState *s, void *ptr)
-{
-    if (!ptr)
-        return;
-
-    s->malloc_count--;
-    s->malloc_size -= js_def_malloc_usable_size(ptr) + MALLOC_OVERHEAD;
-    free(ptr);
-}
-
-static void *js_def_realloc(JSMallocState *s, void *ptr, size_t size)
-{
-    size_t old_size;
-
-    if (!ptr) {
-        if (size == 0)
-            return NULL;
-        return js_def_malloc(s, size);
-    }
-    old_size = js_def_malloc_usable_size(ptr);
-    if (size == 0) {
-        s->malloc_count--;
-        s->malloc_size -= old_size + MALLOC_OVERHEAD;
-        free(ptr);
-        return NULL;
-    }
-    if (s->malloc_size + size - old_size > s->malloc_limit)
-        return NULL;
-
-    ptr = realloc(ptr, size);
-    if (!ptr)
-        return NULL;
-
-    s->malloc_size += js_def_malloc_usable_size(ptr) - old_size;
-    return ptr;
-}
-
-static const JSMallocFunctions def_malloc_funcs = {
-    js_def_malloc,
-    js_def_free,
-    js_def_realloc,
-#if defined(__APPLE__)
-    malloc_size,
-#elif defined(_WIN32)
-    (size_t (*)(const void *))_msize,
-#elif defined(EMSCRIPTEN)
-    NULL,
-#elif defined(__linux__)
-    (size_t (*)(const void *))malloc_usable_size,
-#else
-    /* change this to `NULL,` if compilation fails */
-    malloc_usable_size,
-#endif
-};
-
-JSRuntime *JS_NewRuntime(void)
-{
-    return JS_NewRuntime2(&def_malloc_funcs, NULL);
-}
-
-void JS_SetMemoryLimit(JSRuntime *rt, size_t limit)
-{
-    rt->malloc_state.malloc_limit = limit;
-}
-
-/* use -1 to disable automatic GC */
-void JS_SetGCThreshold(JSRuntime *rt, size_t gc_threshold)
-{
-    rt->malloc_gc_threshold = gc_threshold;
-}
-
-#define malloc(s) malloc_is_forbidden(s)
-#define free(p) free_is_forbidden(p)
-#define realloc(p,s) realloc_is_forbidden(p,s)
-
-void JS_SetInterruptHandler(JSRuntime *rt, JSInterruptHandler *cb, void *opaque)
-{
-    rt->interrupt_handler = cb;
-    rt->interrupt_opaque = opaque;
-}
-
-void JS_SetCanBlock(JSRuntime *rt, BOOL can_block)
-{
-    rt->can_block = can_block;
-}
-
-/* return 0 if OK, < 0 if exception */
-int JS_EnqueueJob(JSContext *ctx, JSJobFunc *job_func,
-                  int argc, JSValueConst *argv)
-{
-    JSRuntime *rt = ctx->rt;
-    JSJobEntry *e;
-    int i;
-
-    e = js_malloc(ctx, sizeof(*e) + argc * sizeof(JSValue));
-    if (!e)
-        return -1;
-    e->ctx = ctx;
-    e->job_func = job_func;
-    e->argc = argc;
-    for(i = 0; i < argc; i++) {
-        e->argv[i] = JS_DupValue(ctx, argv[i]);
-    }
-    list_add_tail(&e->link, &rt->job_list);
-    return 0;
-}
-
-BOOL JS_IsJobPending(JSRuntime *rt)
-{
-    return !list_empty(&rt->job_list);
-}
-
-/* return < 0 if exception, 0 if no job pending, 1 if a job was
-   executed successfully. the context of the job is stored in '*pctx' */
-int JS_ExecutePendingJob(JSRuntime *rt, JSContext **pctx)
-{
-    JSContext *ctx;
-    JSJobEntry *e;
-    JSValue res;
-    int i, ret;
-
-    if (list_empty(&rt->job_list)) {
-        *pctx = NULL;
-        return 0;
-    }
-
-    /* get the first pending job and execute it */
-    e = list_entry(rt->job_list.next, JSJobEntry, link);
-    list_del(&e->link);
-    ctx = e->ctx;
-    res = e->job_func(e->ctx, e->argc, (JSValueConst *)e->argv);
-    for(i = 0; i < e->argc; i++)
-        JS_FreeValue(ctx, e->argv[i]);
-    if (JS_IsException(res))
-        ret = -1;
-    else
-        ret = 1;
-    JS_FreeValue(ctx, res);
-    js_free(ctx, e);
-    *pctx = ctx;
-    return ret;
-}
-
-static inline uint32_t atom_get_free(const JSAtomStruct *p)
-{
-    return (uintptr_t)p >> 1;
-}
-
-static inline BOOL atom_is_free(const JSAtomStruct *p)
-{
-    return (uintptr_t)p & 1;
-}
-
-static inline JSAtomStruct *atom_set_free(uint32_t v)
-{
-    return (JSAtomStruct *)(((uintptr_t)v << 1) | 1);
-}
-
-/* Note: the string contents are uninitialized */
-static JSString *js_alloc_string_rt(JSRuntime *rt, int max_len, int is_wide_char)
-{
-    JSString *str;
-    str = js_malloc_rt(rt, sizeof(JSString) + (max_len << is_wide_char) + 1 - is_wide_char);
-    if (unlikely(!str))
-        return NULL;
-    str->header.ref_count = 1;
-    str->is_wide_char = is_wide_char;
-    str->len = max_len;
-    str->atom_type = 0;
-    str->hash = 0;          /* optional but costless */
-    str->hash_next = 0;     /* optional */
-#ifdef DUMP_LEAKS
-    list_add_tail(&str->link, &rt->string_list);
-#endif
-    return str;
-}
-
-static JSString *js_alloc_string(JSContext *ctx, int max_len, int is_wide_char)
-{
-    JSString *p;
-    p = js_alloc_string_rt(ctx->rt, max_len, is_wide_char);
-    if (unlikely(!p)) {
-        JS_ThrowOutOfMemory(ctx);
-        return NULL;
-    }
-    return p;
-}
-
-/* same as JS_FreeValueRT() but faster */
-static inline void js_free_string(JSRuntime *rt, JSString *str)
-{
-    if (--str->header.ref_count <= 0) {
-        if (str->atom_type) {
-            JS_FreeAtomStruct(rt, str);
-        } else {
-#ifdef DUMP_LEAKS
-            list_del(&str->link);
-#endif
-            js_free_rt(rt, str);
-        }
-    }
-}
-
-void JS_SetRuntimeInfo(JSRuntime *rt, const char *s)
-{
-    if (rt)
-        rt->rt_info = s;
-}
-
-void JS_FreeRuntime(JSRuntime *rt)
-{
-    struct list_head *el, *el1;
-    int i;
-
-    list_for_each_safe(el, el1, &rt->context_list) {
-        JSContext *ctx = list_entry(el, JSContext, link);
-        JS_FreeContext(ctx);
-    }
-
-    list_for_each_safe(el, el1, &rt->job_list) {
-        JSJobEntry *e = list_entry(el, JSJobEntry, link);
-        for(i = 0; i < e->argc; i++)
-            JS_FreeValueRT(rt, e->argv[i]);
-        js_free_rt(rt, e);
-    }
-    init_list_head(&rt->job_list);
-
-    JS_RunGC(rt);
-
-#ifdef DUMP_LEAKS
-    /* leaking objects */
-    {
-        BOOL header_done;
-        JSObject *p;
-        int count;
-
-        /* remove the internal refcounts to display only the object
-           referenced externally */
-        list_for_each(el, &rt->obj_list) {
-            p = list_entry(el, JSObject, link);
-            p->gc_header.mark = 0;
-        }
-        gc_decref(rt);
-
-        header_done = FALSE;
-        list_for_each(el, &rt->obj_list) {
-            p = list_entry(el, JSObject, link);
-            if (p->header.ref_count != 0) {
-                if (!header_done) {
-                    printf("Object leaks:\n");
-                    JS_DumpObjectHeader(rt);
-                    header_done = TRUE;
-                }
-                JS_DumpObject(rt, p);
-            }
-        }
-
-        count = 0;
-        list_for_each(el, &rt->obj_list) {
-            p = list_entry(el, JSObject, link);
-            if (p->header.ref_count == 0) {
-                count++;
-            }
-        }
-        if (count != 0)
-            printf("Secondary object leaks: %d\n", count);
-    }
-#endif
-    assert(list_empty(&rt->obj_list));
-
-    /* free the classes */
-    for(i = 0; i < rt->class_count; i++) {
-        JSClass *cl = &rt->class_array[i];
-        if (cl->class_id != 0) {
-            JS_FreeAtomRT(rt, cl->class_name);
-        }
-    }
-    js_free_rt(rt, rt->class_array);
-
-#ifdef CONFIG_BIGNUM
-    bf_context_end(&rt->bf_ctx);
-#endif
-
-#ifdef DUMP_LEAKS
-    /* only the atoms defined in JS_InitAtoms() should be left */
-    {
-        BOOL header_done = FALSE;
-
-        for(i = 0; i < rt->atom_size; i++) {
-            JSAtomStruct *p = rt->atom_array[i];
-            if (!atom_is_free(p) /* && p->str*/) {
-                if (i >= JS_ATOM_END || p->header.ref_count != 1) {
-                    if (!header_done) {
-                        header_done = TRUE;
-                        if (rt->rt_info) {
-                            printf("%s:1: atom leakage:", rt->rt_info);
-                        } else {
-                            printf("Atom leaks:\n"
-                                   "    %6s %6s %s\n",
-                                   "ID", "REFCNT", "NAME");
-                        }
-                    }
-                    if (rt->rt_info) {
-                        printf(" ");
-                    } else {
-                        printf("    %6u %6u ", i, p->header.ref_count);
-                    }
-                    switch (p->atom_type) {
-                    case JS_ATOM_TYPE_STRING:
-                        JS_DumpString(rt, p);
-                        break;
-                    case JS_ATOM_TYPE_GLOBAL_SYMBOL:
-                        printf("Symbol.for(");
-                        JS_DumpString(rt, p);
-                        printf(")");
-                        break;
-                    case JS_ATOM_TYPE_SYMBOL:
-                        if (p->hash == JS_ATOM_HASH_SYMBOL) {
-                            printf("Symbol(");
-                            JS_DumpString(rt, p);
-                            printf(")");
-                        } else {
-                            printf("Private(");
-                            JS_DumpString(rt, p);
-                            printf(")");
-                        }
-                        break;
-                    }
-                    if (rt->rt_info) {
-                        printf(":%u", p->header.ref_count);
-                    } else {
-                        printf("\n");
-                    }
-                }
-            }
-        }
-        if (rt->rt_info && header_done)
-            printf("\n");
-    }
-#endif
-
-    /* free the atoms */
-    for(i = 0; i < rt->atom_size; i++) {
-        JSAtomStruct *p = rt->atom_array[i];
-        if (!atom_is_free(p)) {
-#ifdef DUMP_LEAKS
-            list_del(&p->link);
-#endif
-            js_free_rt(rt, p);
-        }
-    }
-    js_free_rt(rt, rt->atom_array);
-    js_free_rt(rt, rt->atom_hash);
-    js_free_rt(rt, rt->shape_hash);
-#ifdef DUMP_LEAKS
-    if (!list_empty(&rt->string_list)) {
-        if (rt->rt_info) {
-            printf("%s:1: string leakage:", rt->rt_info);
-        } else {
-            printf("String leaks:\n"
-                   "    %6s %s\n",
-                   "REFCNT", "VALUE");
-        }
-        list_for_each_safe(el, el1, &rt->string_list) {
-            JSString *str = list_entry(el, JSString, link);
-            if (rt->rt_info) {
-                printf(" ");
-            } else {
-                printf("    %6u ", str->header.ref_count);
-            }
-            JS_DumpString(rt, str);
-            if (rt->rt_info) {
-                printf(":%u", str->header.ref_count);
-            } else {
-                printf("\n");
-            }
-            list_del(&str->link);
-            js_free_rt(rt, str);
-        }
-        if (rt->rt_info)
-            printf("\n");
-    }
-    {
-        JSMallocState *s = &rt->malloc_state;
-        if (s->malloc_count > 1) {
-            if (rt->rt_info)
-                printf("%s:1: ", rt->rt_info);
-            printf("Memory leak: %"PRIu64" bytes lost in %"PRIu64" block%s\n",
-                   (uint64_t)(s->malloc_size - sizeof(JSRuntime)),
-                   (uint64_t)(s->malloc_count - 1), &"s"[s->malloc_count == 2]);
-        }
-    }
-#endif
-
-    {
-        JSMallocState ms = rt->malloc_state;
-        rt->mf.js_free(&ms, rt);
-    }
-}
-
-#if defined(EMSCRIPTEN)
-/* currently no stack limitation */
-static inline uint8_t *js_get_stack_pointer(void)
-{
-    return NULL;
-}
-
-static inline BOOL js_check_stack_overflow(JSContext *ctx, size_t alloca_size)
-{
-    return FALSE;
-}
-#else
-/* Note: OS and CPU dependent */
-static inline uint8_t *js_get_stack_pointer(void)
-{
-    return __builtin_frame_address(0);
-}
-
-static inline BOOL js_check_stack_overflow(JSContext *ctx, size_t alloca_size)
-{
-    size_t size;
-    size = ctx->stack_top - js_get_stack_pointer();
-    return unlikely((size + alloca_size) > ctx->stack_size);
-}
-#endif
-
-JSContext *JS_NewContextRaw(JSRuntime *rt)
-{
-    JSContext *ctx;
-    int i;
-
-    ctx = js_mallocz_rt(rt, sizeof(JSContext));
-    if (!ctx)
-        return NULL;
-    ctx->class_proto = js_malloc_rt(rt, sizeof(ctx->class_proto[0]) *
-                                    rt->class_count);
-    if (!ctx->class_proto) {
-        js_free_rt(rt, ctx);
-        return NULL;
-    }
-    ctx->rt = rt;
-    list_add_tail(&ctx->link, &rt->context_list);
-    ctx->stack_top = js_get_stack_pointer();
-    ctx->stack_size = JS_DEFAULT_STACK_SIZE;
-    ctx->current_exception = JS_NULL;
-#ifdef CONFIG_BIGNUM
-    ctx->bf_ctx = &rt->bf_ctx;
-    ctx->fp_env.prec = 53;
-    ctx->fp_env.flags = bf_set_exp_bits(11) | BF_RNDN | BF_FLAG_SUBNORMAL;
-#endif
-    for(i = 0; i < rt->class_count; i++)
-        ctx->class_proto[i] = JS_NULL;
-    ctx->regexp_ctor = JS_NULL;
-    ctx->promise_ctor = JS_NULL;
-    init_list_head(&ctx->loaded_modules);
-
-    JS_AddIntrinsicBasicObjects(ctx);
-    return ctx;
-}
-
-JSContext *JS_NewContext(JSRuntime *rt)
-{
-    JSContext *ctx;
-
-    ctx = JS_NewContextRaw(rt);
-    if (!ctx)
-        return NULL;
-
-    JS_AddIntrinsicBaseObjects(ctx);
-    JS_AddIntrinsicDate(ctx);
-    JS_AddIntrinsicEval(ctx);
-    JS_AddIntrinsicStringNormalize(ctx);
-    JS_AddIntrinsicRegExp(ctx);
-    JS_AddIntrinsicJSON(ctx);
-    JS_AddIntrinsicProxy(ctx);
-    JS_AddIntrinsicMapSet(ctx);
-    JS_AddIntrinsicTypedArrays(ctx);
-    JS_AddIntrinsicPromise(ctx);
-
-    return ctx;
-}
-
-void *JS_GetContextOpaque(JSContext *ctx)
-{
-    return ctx->user_opaque;
-}
-
-void JS_SetContextOpaque(JSContext *ctx, void *opaque)
-{
-    ctx->user_opaque = opaque;
-}
-
-/* set the new value and free the old value after (freeing the value
-   can reallocate the object data) */
-static inline void set_value(JSContext *ctx, JSValue *pval, JSValue new_val)
-{
-    JSValue old_val;
-    old_val = *pval;
-    *pval = new_val;
-    JS_FreeValue(ctx, old_val);
-}
-
-void JS_SetClassProto(JSContext *ctx, JSClassID class_id, JSValue obj)
-{
-    JSRuntime *rt = ctx->rt;
-    assert(class_id < rt->class_count);
-    set_value(ctx, &ctx->class_proto[class_id], obj);
-}
-
-JSValue JS_GetClassProto(JSContext *ctx, JSClassID class_id)
-{
-    JSRuntime *rt = ctx->rt;
-    assert(class_id < rt->class_count);
-    return JS_DupValue(ctx, ctx->class_proto[class_id]);
-}
-
-typedef enum JSFreeModuleEnum {
-    JS_FREE_MODULE_ALL,
-    JS_FREE_MODULE_NOT_RESOLVED,
-    JS_FREE_MODULE_NOT_EVALUATED,
-} JSFreeModuleEnum;
-
-/* XXX: would be more efficient with separate module lists */
-static void js_free_modules(JSContext *ctx, JSFreeModuleEnum flag)
-{
-    struct list_head *el, *el1;
-    list_for_each_safe(el, el1, &ctx->loaded_modules) {
-        JSModuleDef *m = list_entry(el, JSModuleDef, link);
-        if (flag == JS_FREE_MODULE_ALL ||
-            (flag == JS_FREE_MODULE_NOT_RESOLVED && !m->resolved) ||
-            (flag == JS_FREE_MODULE_NOT_EVALUATED && !m->evaluated)) {
-            js_free_module_def(ctx, m);
-        }
-    }
-}
-
-void JS_FreeContext(JSContext *ctx)
-{
-    JSRuntime *rt = ctx->rt;
-    int i;
-
-#ifdef DUMP_ATOMS
-    JS_DumpAtoms(ctx->rt);
-#endif
-#ifdef DUMP_SHAPES
-    JS_DumpShapes(ctx->rt);
-#endif
-#ifdef DUMP_OBJECTS
-    {
-        struct list_head *el;
-        JSObject *p;
-        printf("JSObjects: {\n");
-        JS_DumpObjectHeader(ctx->rt);
-        list_for_each(el, &rt->obj_list) {
-            p = list_entry(el, JSObject, link);
-            JS_DumpObject(rt, p);
-        }
-        printf("}\n");
-    }
-#endif
-#ifdef DUMP_MEM
-    {
-        JSMemoryUsage stats;
-        JS_ComputeMemoryUsage(rt, &stats);
-        JS_DumpMemoryUsage(stdout, &stats, rt);
-    }
-#endif
-
-    js_free_modules(ctx, JS_FREE_MODULE_ALL);
-
-    JS_FreeValue(ctx, ctx->current_exception);
-
-    JS_FreeValue(ctx, ctx->global_obj);
-    JS_FreeValue(ctx, ctx->global_var_obj);
-
-    JS_FreeValue(ctx, ctx->throw_type_error);
-
-    JS_FreeValue(ctx, ctx->array_proto_values);
-    for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++) {
-        JS_FreeValue(ctx, ctx->native_error_proto[i]);
-    }
-    for(i = 0; i < rt->class_count; i++) {
-        JS_FreeValue(ctx, ctx->class_proto[i]);
-    }
-    js_free_rt(rt, ctx->class_proto);
-    JS_FreeValue(ctx, ctx->iterator_proto);
-    JS_FreeValue(ctx, ctx->async_iterator_proto);
-    JS_FreeValue(ctx, ctx->promise_ctor);
-    JS_FreeValue(ctx, ctx->regexp_ctor);
-    JS_FreeValue(ctx, ctx->function_ctor);
-    JS_FreeValue(ctx, ctx->function_proto);
-
-    js_free_shape_null(ctx->rt, ctx->array_shape);
-
-    list_del(&ctx->link);
-    js_free_rt(ctx->rt, ctx);
-}
-
-JSRuntime *JS_GetRuntime(JSContext *ctx)
-{
-    return ctx->rt;
-}
-
-void JS_SetMaxStackSize(JSContext *ctx, size_t stack_size)
-{
-    ctx->stack_size = stack_size;
-}
-
-static inline BOOL is_strict_mode(JSContext *ctx)
-{
-    JSStackFrame *sf = ctx->current_stack_frame;
-    return (sf && (sf->js_mode & JS_MODE_STRICT));
-}
-
-#ifdef CONFIG_BIGNUM
-static inline BOOL is_bignum_mode(JSContext *ctx)
-{
-    JSStackFrame *sf = ctx->current_stack_frame;
-    return (sf && (sf->js_mode & JS_MODE_BIGINT));
-}
-#endif
-
-JSValue JS_NewInt64(JSContext *ctx, int64_t v)
-{
-    if (v == (int32_t)v) {
-        return JS_NewInt32(ctx, v);
-    } else {
-#ifdef CONFIG_BIGNUM
-        if (is_bignum_mode(ctx)) {
-            bf_t a_s, *a = &a_s;
-            bf_init(ctx->bf_ctx, a);
-            bf_set_si(a, v);
-            return JS_NewBigInt(ctx, a);
-        } else
-#endif
-        {
-            return __JS_NewFloat64(ctx, (double)v);
-        }
-    }
-}
-
-static force_inline JSValue JS_NewUint32(JSContext *ctx, uint32_t val)
-{
-#ifdef CONFIG_BIGNUM
-    return JS_NewInt64(ctx, val);
-#else
-    JSValue v;
-    if (val <= 0x7fffffff) {
-        v = JS_MKVAL(JS_TAG_INT, val);
-    } else {
-        v = __JS_NewFloat64(ctx, val);
-    }
-    return v;
-#endif
-}
-
-/* JSAtom support */
-
-#define JS_ATOM_TAG_INT (1U << 31)
-#define JS_ATOM_MAX_INT (JS_ATOM_TAG_INT - 1)
-#define JS_ATOM_MAX     ((1U << 30) - 1)
-
-/* return the max count from the hash size */
-#define JS_ATOM_COUNT_RESIZE(n) ((n) * 2)
-
-static inline BOOL __JS_AtomIsConst(JSAtom v)
-{
-#if defined(DUMP_LEAKS) && DUMP_LEAKS > 1
-        return (int32_t)v <= 0;
-#else
-        return (int32_t)v < JS_ATOM_END;
-#endif
-}
-
-static inline BOOL __JS_AtomIsTaggedInt(JSAtom v)
-{
-    return (v & JS_ATOM_TAG_INT) != 0;
-}
-
-static inline JSAtom __JS_AtomFromUInt32(uint32_t v)
-{
-    return v | JS_ATOM_TAG_INT;
-}
-
-static inline uint32_t __JS_AtomToUInt32(JSAtom atom)
-{
-    return atom & ~JS_ATOM_TAG_INT;
-}
-
-static inline int is_num(int c)
-{
-    return c >= '0' && c <= '9';
-}
-
-/* return TRUE if the string is a number n with 0 <= n <= 2^32-1 */
-static inline BOOL is_num_string(uint32_t *pval, const JSString *p)
-{
-    uint32_t n;
-    uint64_t n64;
-    int c, i, len;
-
-    len = p->len;
-    if (len == 0 || len > 10)
-        return FALSE;
-    if (p->is_wide_char)
-        c = p->u.str16[0];
-    else
-        c = p->u.str8[0];
-    if (is_num(c)) {
-        if (c == '0') {
-            if (len != 1)
-                return FALSE;
-            n = 0;
-        } else {
-            n = c - '0';
-            for(i = 1; i < len; i++) {
-                if (p->is_wide_char)
-                    c = p->u.str16[i];
-                else
-                    c = p->u.str8[i];
-                if (!is_num(c))
-                    return FALSE;
-                n64 = (uint64_t)n * 10 + (c - '0');
-                if ((n64 >> 32) != 0)
-                    return FALSE;
-                n = n64;
-            }
-        }
-        *pval = n;
-        return TRUE;
-    } else {
-        return FALSE;
-    }
-}
-
-/* XXX: could use faster version ? */
-static inline uint32_t hash_string8(const uint8_t *str, size_t len, uint32_t h)
-{
-    size_t i;
-
-    for(i = 0; i < len; i++)
-        h = h * 263 + str[i];
-    return h;
-}
-
-static inline uint32_t hash_string16(const uint16_t *str,
-                                     size_t len, uint32_t h)
-{
-    size_t i;
-
-    for(i = 0; i < len; i++)
-        h = h * 263 + str[i];
-    return h;
-}
-
-static uint32_t hash_string(const JSString *str, uint32_t h)
-{
-    if (str->is_wide_char)
-        h = hash_string16(str->u.str16, str->len, h);
-    else
-        h = hash_string8(str->u.str8, str->len, h);
-    return h;
-}
-
-static __attribute__((unused)) void JS_DumpString(JSRuntime *rt,
-                                                  const JSString *p)
-{
-    int i, c, sep;
-
-    if (p == NULL) {
-        printf("<null>");
-        return;
-    }
-    printf("%d", p->header.ref_count);
-    sep = (p->header.ref_count == 1) ? '\"' : '\'';
-    putchar(sep);
-    for(i = 0; i < p->len; i++) {
-        if (p->is_wide_char)
-            c = p->u.str16[i];
-        else
-            c = p->u.str8[i];
-        if (c == sep || c == '\\') {
-            putchar('\\');
-            putchar(c);
-        } else if (c >= ' ' && c <= 126) {
-            putchar(c);
-        } else if (c == '\n') {
-            putchar('\\');
-            putchar('n');
-        } else {
-            printf("\\u%04x", c);
-        }
-    }
-    putchar(sep);
-}
-
-static __attribute__((unused)) void JS_DumpAtoms(JSRuntime *rt)
-{
-    JSAtomStruct *p;
-    int h, i;
-    /* This only dumps hashed atoms, not JS_ATOM_TYPE_SYMBOL atoms */
-    printf("JSAtom count=%d size=%d hash_size=%d:\n",
-           rt->atom_count, rt->atom_size, rt->atom_hash_size);
-    printf("JSAtom hash table: {\n");
-    for(i = 0; i < rt->atom_hash_size; i++) {
-        h = rt->atom_hash[i];
-        if (h) {
-            printf("  %d:", i);
-            while (h) {
-                p = rt->atom_array[h];
-                printf(" ");
-                JS_DumpString(rt, p);
-                h = p->hash_next;
-            }
-            printf("\n");
-        }
-    }
-    printf("}\n");
-    printf("JSAtom table: {\n");
-    for(i = 0; i < rt->atom_size; i++) {
-        p = rt->atom_array[i];
-        if (!atom_is_free(p)) {
-            printf("  %d: { %d %08x ", i, p->atom_type, p->hash);
-            if (!(p->len == 0 && p->is_wide_char != 0))
-                JS_DumpString(rt, p);
-            printf(" %d }\n", p->hash_next);
-        }
-    }
-    printf("}\n");
-}
-
-static int JS_ResizeAtomHash(JSRuntime *rt, int new_hash_size)
-{
-    JSAtomStruct *p;
-    uint32_t new_hash_mask, h, i, hash_next1, j, *new_hash;
-
-    assert((new_hash_size & (new_hash_size - 1)) == 0); /* power of two */
-    new_hash_mask = new_hash_size - 1;
-    new_hash = js_mallocz_rt(rt, sizeof(rt->atom_hash[0]) * new_hash_size);
-    if (!new_hash)
-        return -1;
-    for(i = 0; i < rt->atom_hash_size; i++) {
-        h = rt->atom_hash[i];
-        while (h != 0) {
-            p = rt->atom_array[h];
-            hash_next1 = p->hash_next;
-            /* add in new hash table */
-            j = p->hash & new_hash_mask;
-            p->hash_next = new_hash[j];
-            new_hash[j] = h;
-            h = hash_next1;
-        }
-    }
-    js_free_rt(rt, rt->atom_hash);
-    rt->atom_hash = new_hash;
-    rt->atom_hash_size = new_hash_size;
-    rt->atom_count_resize = JS_ATOM_COUNT_RESIZE(new_hash_size);
-    //    JS_DumpAtoms(rt);
-    return 0;
-}
-
-static int JS_InitAtoms(JSRuntime *rt)
-{
-    int i, len, atom_type;
-    const char *p;
-
-    rt->atom_hash_size = 0;
-    rt->atom_hash = NULL;
-    rt->atom_count = 0;
-    rt->atom_size = 0;
-    rt->atom_free_index = 0;
-    if (JS_ResizeAtomHash(rt, 256))     /* there are at least 195 predefined atoms */
-        return -1;
-
-    p = js_atom_init;
-    for(i = 1; i < JS_ATOM_END; i++) {
-        if (i == JS_ATOM_Private_brand)
-            atom_type = JS_ATOM_TYPE_PRIVATE;
-        else if (i >= JS_ATOM_Symbol_toPrimitive)
-            atom_type = JS_ATOM_TYPE_SYMBOL;
-        else
-            atom_type = JS_ATOM_TYPE_STRING;
-        len = strlen(p);
-        if (__JS_NewAtomInit(rt, p, len, atom_type) == JS_ATOM_NULL)
-            return -1;
-        p = p + len + 1;
-    }
-    return 0;
-}
-
-static JSAtom JS_DupAtomRT(JSRuntime *rt, JSAtom v)
-{
-    JSAtomStruct *p;
-
-    if (!__JS_AtomIsConst(v)) {
-        p = rt->atom_array[v];
-        p->header.ref_count++;
-    }
-    return v;
-}
-
-JSAtom JS_DupAtom(JSContext *ctx, JSAtom v)
-{
-    JSRuntime *rt;
-    JSAtomStruct *p;
-
-    if (!__JS_AtomIsConst(v)) {
-        rt = ctx->rt;
-        p = rt->atom_array[v];
-        p->header.ref_count++;
-    }
-    return v;
-}
-
-static JSAtomKindEnum JS_AtomGetKind(JSContext *ctx, JSAtom v)
-{
-    JSRuntime *rt;
-    JSAtomStruct *p;
-
-    rt = ctx->rt;
-    if (__JS_AtomIsTaggedInt(v))
-        return JS_ATOM_KIND_STRING;
-    p = rt->atom_array[v];
-    switch(p->atom_type) {
-    case JS_ATOM_TYPE_STRING:
-        return JS_ATOM_KIND_STRING;
-    case JS_ATOM_TYPE_GLOBAL_SYMBOL:
-        return JS_ATOM_KIND_SYMBOL;
-    case JS_ATOM_TYPE_SYMBOL:
-        switch(p->hash) {
-        case JS_ATOM_HASH_SYMBOL:
-            return JS_ATOM_KIND_SYMBOL;
-        case JS_ATOM_HASH_PRIVATE:
-            return JS_ATOM_KIND_PRIVATE;
-        default:
-            abort();
-        }
-    default:
-        abort();
-    }
-}
-
-static BOOL JS_AtomIsString(JSContext *ctx, JSAtom v)
-{
-    return JS_AtomGetKind(ctx, v) == JS_ATOM_KIND_STRING;
-}
-
-static JSAtom js_get_atom_index(JSRuntime *rt, JSAtomStruct *p)
-{
-    uint32_t i = p->hash_next;  /* atom_index */
-    if (p->atom_type != JS_ATOM_TYPE_SYMBOL) {
-        JSAtomStruct *p1;
-
-        i = rt->atom_hash[p->hash & (rt->atom_hash_size - 1)];
-        p1 = rt->atom_array[i];
-        while (p1 != p) {
-            assert(i != 0);
-            i = p1->hash_next;
-            p1 = rt->atom_array[i];
-        }
-    }
-    return i;
-}
-
-/* string case (internal). Return JS_ATOM_NULL if error. 'str' is
-   freed. */
-static JSAtom __JS_NewAtom(JSRuntime *rt, JSString *str, int atom_type)
-{
-    uint32_t h, h1, i;
-    JSAtomStruct *p;
-    int len;
-
-#if 0
-    printf("__JS_NewAtom: ");  JS_DumpString(rt, str); printf("\n");
-#endif
-    if (atom_type < JS_ATOM_TYPE_SYMBOL) {
-        /* str is not NULL */
-        if (str->atom_type == atom_type) {
-            /* str is the atom, return its index */
-            i = js_get_atom_index(rt, str);
-            /* reduce string refcount and increase atom's unless constant */
-            if (__JS_AtomIsConst(i))
-                str->header.ref_count--;
-            return i;
-        }
-        /* try and locate an already registered atom */
-        len = str->len;
-        h = hash_string(str, atom_type);
-        h &= JS_ATOM_HASH_MASK;
-        h1 = h & (rt->atom_hash_size - 1);
-        i = rt->atom_hash[h1];
-        while (i != 0) {
-            p = rt->atom_array[i];
-            if (p->hash == h &&
-                p->atom_type == atom_type &&
-                p->len == len &&
-                js_string_memcmp(p, str, len) == 0) {
-                if (!__JS_AtomIsConst(i))
-                    p->header.ref_count++;
-                goto done;
-            }
-            i = p->hash_next;
-        }
-    } else {
-        h1 = 0; /* avoid warning */
-        if (atom_type == JS_ATOM_TYPE_SYMBOL) {
-            h = JS_ATOM_HASH_SYMBOL;
-        } else {
-            h = JS_ATOM_HASH_PRIVATE;
-            atom_type = JS_ATOM_TYPE_SYMBOL;
-        }
-    }
-
-    if (rt->atom_free_index == 0) {
-        /* allow new atom entries */
-        uint32_t new_size, start;
-        JSAtomStruct **new_array;
-
-        /* alloc new with size progression 3/2:
-           4 6 9 13 19 28 42 63 94 141 211 316 474 711 1066 1599 2398 3597 5395 8092
-           preallocating space for predefined atoms (at least 195).
-         */
-        new_size = max_int(211, rt->atom_size * 3 / 2);
-        if (new_size > JS_ATOM_MAX)
-            goto fail;
-        /* XXX: should use realloc2 to use slack space */
-        new_array = js_realloc_rt(rt, rt->atom_array, sizeof(*new_array) * new_size);
-        if (!new_array)
-            goto fail;
-        /* Note: the atom 0 is not used */
-        start = rt->atom_size;
-        if (start == 0) {
-            /* JS_ATOM_NULL entry */
-            p = js_mallocz_rt(rt, sizeof(JSAtomStruct));
-            if (!p) {
-                js_free_rt(rt, new_array);
-                goto fail;
-            }
-            p->header.ref_count = 1;  /* not refcounted */
-            p->atom_type = JS_ATOM_TYPE_SYMBOL;
-#ifdef DUMP_LEAKS
-            list_add_tail(&p->link, &rt->string_list);
-#endif
-            new_array[0] = p;
-            rt->atom_count++;
-            start = 1;
-        }
-        rt->atom_size = new_size;
-        rt->atom_array = new_array;
-        rt->atom_free_index = start;
-        for(i = start; i < new_size; i++) {
-            uint32_t next;
-            if (i == (new_size - 1))
-                next = 0;
-            else
-                next = i + 1;
-            rt->atom_array[i] = atom_set_free(next);
-        }
-    }
-
-    if (str) {
-        if (str->atom_type == 0) {
-            p = str;
-            p->atom_type = atom_type;
-        } else {
-            p = js_malloc_rt(rt, sizeof(JSString) +
-                             (str->len << str->is_wide_char) +
-                             1 - str->is_wide_char);
-            if (unlikely(!p))
-                goto fail;
-            p->header.ref_count = 1;
-            p->is_wide_char = str->is_wide_char;
-            p->len = str->len;
-#ifdef DUMP_LEAKS
-            list_add_tail(&p->link, &rt->string_list);
-#endif
-            memcpy(p->u.str8, str->u.str8, (str->len << str->is_wide_char) +
-                   1 - str->is_wide_char);
-            js_free_string(rt, str);
-        }
-    } else {
-        p = js_malloc_rt(rt, sizeof(JSAtomStruct)); /* empty wide string */
-        if (!p)
-            return JS_ATOM_NULL;
-        p->header.ref_count = 1;
-        p->is_wide_char = 1;    /* Hack to represent NULL as a JSString */
-        p->len = 0;
-#ifdef DUMP_LEAKS
-        list_add_tail(&p->link, &rt->string_list);
-#endif
-    }
-
-    /* use an already free entry */
-    i = rt->atom_free_index;
-    rt->atom_free_index = atom_get_free(rt->atom_array[i]);
-    rt->atom_array[i] = p;
-
-    p->hash = h;
-    p->hash_next = i;   /* atom_index */
-    p->atom_type = atom_type;
-
-    rt->atom_count++;
-
-    if (atom_type != JS_ATOM_TYPE_SYMBOL) {
-        p->hash_next = rt->atom_hash[h1];
-        rt->atom_hash[h1] = i;
-        if (unlikely(rt->atom_count >= rt->atom_count_resize))
-            JS_ResizeAtomHash(rt, rt->atom_hash_size * 2);
-    }
-
-    //    JS_DumpAtoms(rt);
-    return i;
-
- fail:
-    i = JS_ATOM_NULL;
- done:
-    if (str)
-        js_free_string(rt, str);
-    return i;
-}
-
-/* only works with zero terminated 8 bit strings */
-static JSAtom __JS_NewAtomInit(JSRuntime *rt, const char *str, int len,
-                               int atom_type)
-{
-    JSString *p;
-    p = js_alloc_string_rt(rt, len, 0);
-    if (!p)
-        return JS_ATOM_NULL;
-    memcpy(p->u.str8, str, len);
-    p->u.str8[len] = '\0';
-    return __JS_NewAtom(rt, p, atom_type);
-}
-
-static JSAtom __JS_FindAtom(JSRuntime *rt, const char *str, size_t len,
-                            int atom_type)
-{
-    uint32_t h, h1, i;
-    JSAtomStruct *p;
-
-    h = hash_string8((const uint8_t *)str, len, JS_ATOM_TYPE_STRING);
-    h &= JS_ATOM_HASH_MASK;
-    h1 = h & (rt->atom_hash_size - 1);
-    i = rt->atom_hash[h1];
-    while (i != 0) {
-        p = rt->atom_array[i];
-        if (p->hash == h &&
-            p->atom_type == JS_ATOM_TYPE_STRING &&
-            p->len == len &&
-            p->is_wide_char == 0 &&
-            memcmp(p->u.str8, str, len) == 0) {
-            if (!__JS_AtomIsConst(i))
-                p->header.ref_count++;
-            return i;
-        }
-        i = p->hash_next;
-    }
-    return JS_ATOM_NULL;
-}
-
-static void JS_FreeAtomStruct(JSRuntime *rt, JSAtomStruct *p)
-{
-#if 0   /* JS_ATOM_NULL is not refcounted: __JS_AtomIsConst() includes 0 */
-    if (unlikely(i == JS_ATOM_NULL)) {
-        p->header.ref_count = INT32_MAX / 2;
-        return;
-    }
-#endif
-    uint32_t i = p->hash_next;  /* atom_index */
-    if (p->atom_type != JS_ATOM_TYPE_SYMBOL) {
-        JSAtomStruct *p0, *p1;
-        uint32_t h0;
-
-        h0 = p->hash & (rt->atom_hash_size - 1);
-        i = rt->atom_hash[h0];
-        p1 = rt->atom_array[i];
-        if (p1 == p) {
-            rt->atom_hash[h0] = p1->hash_next;
-        } else {
-            for(;;) {
-                assert(i != 0);
-                p0 = p1;
-                i = p1->hash_next;
-                p1 = rt->atom_array[i];
-                if (p1 == p) {
-                    p0->hash_next = p1->hash_next;
-                    break;
-                }
-            }
-        }
-    }
-    /* insert in free atom list */
-    rt->atom_array[i] = atom_set_free(rt->atom_free_index);
-    rt->atom_free_index = i;
-    /* free the string structure */
-#ifdef DUMP_LEAKS
-    list_del(&p->link);
-#endif
-    js_free_rt(rt, p);
-    rt->atom_count--;
-    assert(rt->atom_count >= 0);
-}
-
-static void __JS_FreeAtom(JSRuntime *rt, uint32_t i)
-{
-    JSAtomStruct *p;
-
-    p = rt->atom_array[i];
-    if (--p->header.ref_count > 0)
-        return;
-    JS_FreeAtomStruct(rt, p);
-}
-
-/* Warning: 'p' is freed */
-static JSAtom JS_NewAtomStr(JSContext *ctx, JSString *p)
-{
-    JSRuntime *rt = ctx->rt;
-    uint32_t n;
-    if (is_num_string(&n, p)) {
-        if (n <= JS_ATOM_MAX_INT) {
-            js_free_string(rt, p);
-            return __JS_AtomFromUInt32(n);
-        }
-    }
-    /* XXX: should generate an exception */
-    return __JS_NewAtom(rt, p, JS_ATOM_TYPE_STRING);
-}
-
-JSAtom JS_NewAtomLen(JSContext *ctx, const char *str, size_t len)
-{
-    JSValue val;
-
-    if (len == 0 || !is_digit(*str)) {
-        JSAtom atom = __JS_FindAtom(ctx->rt, str, len, JS_ATOM_TYPE_STRING);
-        if (atom)
-            return atom;
-    }
-    val = JS_NewStringLen(ctx, str, len);
-    if (JS_IsException(val))
-        return JS_ATOM_NULL;
-    return JS_NewAtomStr(ctx, JS_VALUE_GET_STRING(val));
-}
-
-JSAtom JS_NewAtom(JSContext *ctx, const char *str)
-{
-    return JS_NewAtomLen(ctx, str, strlen(str));
-}
-
-JSAtom JS_NewAtomUInt32(JSContext *ctx, uint32_t n)
-{
-    if (n <= JS_ATOM_MAX_INT) {
-        return __JS_AtomFromUInt32(n);
-    } else {
-        char buf[11];
-        JSValue val;
-        snprintf(buf, sizeof(buf), "%u", n);
-        val = JS_NewString(ctx, buf);
-        if (JS_IsException(val))
-            return JS_ATOM_NULL;
-        return __JS_NewAtom(ctx->rt, JS_VALUE_GET_STRING(val),
-                            JS_ATOM_TYPE_STRING);
-    }
-}
-
-static JSAtom JS_NewAtomInt64(JSContext *ctx, int64_t n)
-{
-    if ((uint64_t)n <= JS_ATOM_MAX_INT) {
-        return __JS_AtomFromUInt32((uint32_t)n);
-    } else {
-        char buf[24];
-        JSValue val;
-        snprintf(buf, sizeof(buf), "%" PRId64 , n);
-        val = JS_NewString(ctx, buf);
-        if (JS_IsException(val))
-            return JS_ATOM_NULL;
-        return __JS_NewAtom(ctx->rt, JS_VALUE_GET_STRING(val),
-                            JS_ATOM_TYPE_STRING);
-    }
-}
-
-/* 'p' is freed */
-static JSValue JS_NewSymbol(JSContext *ctx, JSString *p, int atom_type)
-{
-    JSRuntime *rt = ctx->rt;
-    JSAtom atom;
-    atom = __JS_NewAtom(rt, p, atom_type);
-    if (atom == JS_ATOM_NULL)
-        return JS_ThrowOutOfMemory(ctx);
-    return JS_MKPTR(JS_TAG_SYMBOL, rt->atom_array[atom]);
-}
-
-/* descr must be a non-numeric string atom */
-static JSValue JS_NewSymbolFromAtom(JSContext *ctx, JSAtom descr,
-                                    int atom_type)
-{
-    JSRuntime *rt = ctx->rt;
-    JSString *p;
-
-    assert(!__JS_AtomIsTaggedInt(descr));
-    assert(descr < rt->atom_size);
-    p = rt->atom_array[descr];
-    JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p));
-    return JS_NewSymbol(ctx, p, atom_type);
-}
-
-#define ATOM_GET_STR_BUF_SIZE 64
-
-/* Should only be used for debug. */
-static const char *JS_AtomGetStrRT(JSRuntime *rt, char *buf, int buf_size,
-                                   JSAtom atom)
-{
-    if (__JS_AtomIsTaggedInt(atom)) {
-        snprintf(buf, buf_size, "%u", __JS_AtomToUInt32(atom));
-    } else {
-        JSAtomStruct *p;
-        assert(atom < rt->atom_size);
-        if (atom == JS_ATOM_NULL) {
-            snprintf(buf, buf_size, "<null>");
-        } else {
-            int i, c;
-            char *q;
-            JSString *str;
-
-            q = buf;
-            p = rt->atom_array[atom];
-            assert(!atom_is_free(p));
-            str = p;
-            if (str) {
-                if (!str->is_wide_char) {
-                    /* special case ASCII strings */
-                    c = 0;
-                    for(i = 0; i < str->len; i++) {
-                        c |= str->u.str8[i];
-                    }
-                    if (c < 0x80)
-                        return (const char *)str->u.str8;
-                }
-                for(i = 0; i < str->len; i++) {
-                    if (str->is_wide_char)
-                        c = str->u.str16[i];
-                    else
-                        c = str->u.str8[i];
-                    if ((q - buf) >= buf_size - UTF8_CHAR_LEN_MAX)
-                        break;
-                    if (c < 128) {
-                        *q++ = c;
-                    } else {
-                        q += unicode_to_utf8((uint8_t *)q, c);
-                    }
-                }
-            }
-            *q = '\0';
-        }
-    }
-    return buf;
-}
-
-static const char *JS_AtomGetStr(JSContext *ctx, char *buf, int buf_size, JSAtom atom)
-{
-    return JS_AtomGetStrRT(ctx->rt, buf, buf_size, atom);
-}
-
-static JSValue __JS_AtomToValue(JSContext *ctx, JSAtom atom, BOOL force_string)
-{
-    char buf[ATOM_GET_STR_BUF_SIZE];
-
-    if (__JS_AtomIsTaggedInt(atom)) {
-        snprintf(buf, sizeof(buf), "%u", __JS_AtomToUInt32(atom));
-        return JS_NewString(ctx, buf);
-    } else {
-        JSRuntime *rt = ctx->rt;
-        JSAtomStruct *p;
-        assert(atom < rt->atom_size);
-        p = rt->atom_array[atom];
-        if (p->atom_type == JS_ATOM_TYPE_STRING) {
-            goto ret_string;
-        } else if (force_string) {
-            if (p->len == 0 && p->is_wide_char != 0) {
-                /* no description string */
-                p = rt->atom_array[JS_ATOM_empty_string];
-            }
-        ret_string:
-            return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p));
-        } else {
-            return JS_DupValue(ctx, JS_MKPTR(JS_TAG_SYMBOL, p));
-        }
-    }
-}
-
-JSValue JS_AtomToValue(JSContext *ctx, JSAtom atom)
-{
-    return __JS_AtomToValue(ctx, atom, FALSE);
-}
-
-JSValue JS_AtomToString(JSContext *ctx, JSAtom atom)
-{
-    return __JS_AtomToValue(ctx, atom, TRUE);
-}
-
-/* return TRUE if the atom is an array index (i.e. 0 <= index <=
-   2^32-2 and return its value */
-static BOOL JS_AtomIsArrayIndex(JSContext *ctx, uint32_t *pval, JSAtom atom)
-{
-    if (__JS_AtomIsTaggedInt(atom)) {
-        *pval = __JS_AtomToUInt32(atom);
-        return TRUE;
-    } else {
-        JSRuntime *rt = ctx->rt;
-        JSAtomStruct *p;
-        uint32_t val;
-
-        assert(atom < rt->atom_size);
-        p = rt->atom_array[atom];
-        if (p->atom_type == JS_ATOM_TYPE_STRING &&
-            is_num_string(&val, p) && val != -1) {
-            *pval = val;
-            return TRUE;
-        } else {
-            *pval = 0;
-            return FALSE;
-        }
-    }
-}
-
-/* This test must be fast if atom is not a numeric index (e.g. a
-   method name). Return JS_UNDEFINED if not a numeric
-   index. JS_EXCEPTION can also be returned. */
-static JSValue JS_AtomIsNumericIndex1(JSContext *ctx, JSAtom atom)
-{
-    JSRuntime *rt = ctx->rt;
-    JSAtomStruct *p1;
-    JSString *p;
-    int c, len, ret;
-    JSValue num, str;
-
-    if (__JS_AtomIsTaggedInt(atom))
-        return JS_NewInt32(ctx, __JS_AtomToUInt32(atom));
-    assert(atom < rt->atom_size);
-    p1 = rt->atom_array[atom];
-    if (p1->atom_type != JS_ATOM_TYPE_STRING)
-        return JS_UNDEFINED;
-    p = p1;
-    len = p->len;
-    if (p->is_wide_char) {
-        const uint16_t *r = p->u.str16, *r_end = p->u.str16 + len;
-        if (r >= r_end)
-            return JS_UNDEFINED;
-        c = *r;
-        if (c == '-') {
-            if (r >= r_end)
-                return JS_UNDEFINED;
-            r++;
-            c = *r;
-            /* -0 case is specific */
-            if (c == '0' && len == 2)
-                goto minus_zero;
-        }
-        /* XXX: should test NaN, but the tests do not check it */
-        if (!is_num(c)) {
-            /* XXX: String should be normalized, therefore 8-bit only */
-            const uint16_t nfinity16[7] = { 'n', 'f', 'i', 'n', 'i', 't', 'y' };
-            if (!(c =='I' && (r_end - r) == 8 &&
-                  !memcmp(r + 1, nfinity16, sizeof(nfinity16))))
-                return JS_UNDEFINED;
-        }
-    } else {
-        const uint8_t *r = p->u.str8, *r_end = p->u.str8 + len;
-        if (r >= r_end)
-            return JS_UNDEFINED;
-        c = *r;
-        if (c == '-') {
-            if (r >= r_end)
-                return JS_UNDEFINED;
-            r++;
-            c = *r;
-            /* -0 case is specific */
-            if (c == '0' && len == 2) {
-            minus_zero:
-                return __JS_NewFloat64(ctx, -0.0);
-            }
-        }
-        if (!is_num(c)) {
-            if (!(c =='I' && (r_end - r) == 8 &&
-                  !memcmp(r + 1, "nfinity", 7)))
-                return JS_UNDEFINED;
-        }
-    }
-    /* XXX: bignum: would be better to only accept integer to avoid
-       relying on current floating point precision */
-    /* this is ECMA CanonicalNumericIndexString primitive */
-    num = JS_ToNumber(ctx, JS_MKPTR(JS_TAG_STRING, p));
-    if (JS_IsException(num))
-        return num;
-    str = JS_ToString(ctx, num);
-    if (JS_IsException(str)) {
-        JS_FreeValue(ctx, num);
-        return str;
-    }
-    ret = js_string_compare(ctx, p, JS_VALUE_GET_STRING(str));
-    JS_FreeValue(ctx, str);
-    if (ret == 0) {
-        return num;
-    } else {
-        JS_FreeValue(ctx, num);
-        return JS_UNDEFINED;
-    }
-}
-
-/* return -1 if exception or TRUE/FALSE */
-static int JS_AtomIsNumericIndex(JSContext *ctx, JSAtom atom)
-{
-    JSValue num;
-    num = JS_AtomIsNumericIndex1(ctx, atom);
-    if (likely(JS_IsUndefined(num)))
-        return FALSE;
-    if (JS_IsException(num))
-        return -1;
-    JS_FreeValue(ctx, num);
-    return TRUE;
-}
-
-void JS_FreeAtom(JSContext *ctx, JSAtom v)
-{
-    if (!__JS_AtomIsConst(v))
-        __JS_FreeAtom(ctx->rt, v);
-}
-
-void JS_FreeAtomRT(JSRuntime *rt, JSAtom v)
-{
-    if (!__JS_AtomIsConst(v))
-        __JS_FreeAtom(rt, v);
-}
-
-/* return TRUE if 'v' is a symbol with a string description */
-static BOOL JS_AtomSymbolHasDescription(JSContext *ctx, JSAtom v)
-{
-    JSRuntime *rt;
-    JSAtomStruct *p;
-
-    rt = ctx->rt;
-    if (__JS_AtomIsTaggedInt(v))
-        return FALSE;
-    p = rt->atom_array[v];
-    return (((p->atom_type == JS_ATOM_TYPE_SYMBOL &&
-              p->hash == JS_ATOM_HASH_SYMBOL) ||
-             p->atom_type == JS_ATOM_TYPE_GLOBAL_SYMBOL) &&
-            !(p->len == 0 && p->is_wide_char != 0));
-}
-
-static __attribute__((unused)) void print_atom(JSContext *ctx, JSAtom atom)
-{
-    char buf[ATOM_GET_STR_BUF_SIZE];
-    const char *p;
-    int i;
-
-    /* XXX: should handle embedded null characters */
-    /* XXX: should move encoding code to JS_AtomGetStr */
-    p = JS_AtomGetStr(ctx, buf, sizeof(buf), atom);
-    for (i = 0; p[i]; i++) {
-        int c = (unsigned char)p[i];
-        if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
-              (c == '_' || c == '$') || (c >= '0' && c <= '9' && i > 0)))
-            break;
-    }
-    if (i > 0 && p[i] == '\0') {
-        printf("%s", p);
-    } else {
-        putchar('"');
-        printf("%.*s", i, p);
-        for (; p[i]; i++) {
-            int c = (unsigned char)p[i];
-            if (c == '\"' || c == '\\') {
-                putchar('\\');
-                putchar(c);
-            } else if (c >= ' ' && c <= 126) {
-                putchar(c);
-            } else if (c == '\n') {
-                putchar('\\');
-                putchar('n');
-            } else {
-                printf("\\u%04x", c);
-            }
-        }
-        putchar('\"');
-    }
-}
-
-/* free with JS_FreeCString() */
-const char *JS_AtomToCString(JSContext *ctx, JSAtom atom)
-{
-    JSValue str;
-    const char *cstr;
-
-    str = JS_AtomToString(ctx, atom);
-    if (JS_IsException(str))
-        return NULL;
-    cstr = JS_ToCString(ctx, str);
-    JS_FreeValue(ctx, str);
-    return cstr;
-}
-
-/* return a string atom containing name concatenated with str1 */
-static JSAtom js_atom_concat_str(JSContext *ctx, JSAtom name, const char *str1)
-{
-    JSValue str;
-    JSAtom atom;
-    const char *cstr;
-    char *cstr2;
-    size_t len, len1;
-    
-    str = JS_AtomToString(ctx, name);
-    if (JS_IsException(str))
-        return JS_ATOM_NULL;
-    cstr = JS_ToCStringLen(ctx, &len, str);
-    if (!cstr)
-        goto fail;
-    len1 = strlen(str1);
-    cstr2 = js_malloc(ctx, len + len1 + 1);
-    if (!cstr2)
-        goto fail;
-    memcpy(cstr2, cstr, len);
-    memcpy(cstr2 + len, str1, len1);
-    cstr2[len + len1] = '\0';
-    atom = JS_NewAtomLen(ctx, cstr2, len + len1);
-    js_free(ctx, cstr2);
-    JS_FreeCString(ctx, cstr);
-    JS_FreeValue(ctx, str);
-    return atom;
- fail:
-    JS_FreeCString(ctx, cstr);
-    JS_FreeValue(ctx, str);
-    return JS_ATOM_NULL;
-}
-
-static JSAtom js_atom_concat_num(JSContext *ctx, JSAtom name, uint32_t n)
-{
-    char buf[16];
-    snprintf(buf, sizeof(buf), "%u", n);
-    return js_atom_concat_str(ctx, name, buf);
-}
-
-static inline BOOL JS_IsEmptyString(JSValueConst v)
-{
-    return JS_VALUE_GET_TAG(v) == JS_TAG_STRING && JS_VALUE_GET_STRING(v)->len == 0;
-}
-
-/* JSClass support */
-
-/* a new class ID is allocated if *pclass_id != 0 */
-JSClassID JS_NewClassID(JSClassID *pclass_id)
-{
-    JSClassID class_id;
-    /* XXX: make it thread safe */
-    class_id = *pclass_id;
-    if (class_id == 0) {
-        class_id = js_class_id_alloc++;
-        *pclass_id = class_id;
-    }
-    return class_id;
-}
-
-BOOL JS_IsRegisteredClass(JSRuntime *rt, JSClassID class_id)
-{
-    return (class_id < rt->class_count &&
-            rt->class_array[class_id].class_id != 0);
-}
-
-/* create a new object internal class. Return -1 if error, 0 if
-   OK. The finalizer can be NULL if none is needed. */
-static int JS_NewClass1(JSRuntime *rt, JSClassID class_id,
-                        const JSClassDef *class_def, JSAtom name)
-{
-    int new_size, i;
-    JSClass *cl, *new_class_array;
-    struct list_head *el;
-
-    if (class_id < rt->class_count &&
-        rt->class_array[class_id].class_id != 0)
-        return -1;
-
-    if (class_id >= rt->class_count) {
-        new_size = max_int(JS_CLASS_INIT_COUNT,
-                           max_int(class_id + 1, rt->class_count * 3 / 2));
-
-        /* reallocate the context class prototype array, if any */
-        list_for_each(el, &rt->context_list) {
-            JSContext *ctx = list_entry(el, JSContext, link);
-            JSValue *new_tab;
-            new_tab = js_realloc_rt(rt, ctx->class_proto,
-                                    sizeof(ctx->class_proto[0]) * new_size);
-            if (!new_tab)
-                return -1;
-            for(i = rt->class_count; i < new_size; i++)
-                new_tab[i] = JS_NULL;
-            ctx->class_proto = new_tab;
-        }
-        /* reallocate the class array */
-        new_class_array = js_realloc_rt(rt, rt->class_array,
-                                        sizeof(JSClass) * new_size);
-        if (!new_class_array)
-            return -1;
-        memset(new_class_array + rt->class_count, 0,
-               (new_size - rt->class_count) * sizeof(JSClass));
-        rt->class_array = new_class_array;
-        rt->class_count = new_size;
-    }
-    cl = &rt->class_array[class_id];
-    cl->class_id = class_id;
-    cl->class_name = JS_DupAtomRT(rt, name);
-    cl->finalizer = class_def->finalizer;
-    cl->gc_mark = class_def->gc_mark;
-    cl->call = class_def->call;
-    cl->exotic = class_def->exotic;
-    return 0;
-}
-
-int JS_NewClass(JSRuntime *rt, JSClassID class_id, const JSClassDef *class_def)
-{
-    int ret, len;
-    JSAtom name;
-
-    len = strlen(class_def->class_name);
-    name = __JS_FindAtom(rt, class_def->class_name, len, JS_ATOM_TYPE_STRING);
-    if (name == JS_ATOM_NULL) {
-        name = __JS_NewAtomInit(rt, class_def->class_name, len, JS_ATOM_TYPE_STRING);
-        if (name == JS_ATOM_NULL)
-            return -1;
-    }
-    ret = JS_NewClass1(rt, class_id, class_def, name);
-    JS_FreeAtomRT(rt, name);
-    return ret;
-}
-
-static JSValue js_new_string8(JSContext *ctx, const uint8_t *buf, int len)
-{
-    JSString *str;
-
-    if (len <= 0) {
-        return JS_AtomToString(ctx, JS_ATOM_empty_string);
-    }
-    str = js_alloc_string(ctx, len, 0);
-    if (!str)
-        return JS_EXCEPTION;
-    memcpy(str->u.str8, buf, len);
-    str->u.str8[len] = '\0';
-    return JS_MKPTR(JS_TAG_STRING, str);
-}
-
-static JSValue js_new_string16(JSContext *ctx, const uint16_t *buf, int len)
-{
-    JSString *str;
-    str = js_alloc_string(ctx, len, 1);
-    if (!str)
-        return JS_EXCEPTION;
-    memcpy(str->u.str16, buf, len * 2);
-    return JS_MKPTR(JS_TAG_STRING, str);
-}
-
-static JSValue js_new_string_char(JSContext *ctx, uint16_t c)
-{
-    if (c < 0x100) {
-        uint8_t ch8 = c;
-        return js_new_string8(ctx, &ch8, 1);
-    } else {
-        uint16_t ch16 = c;
-        return js_new_string16(ctx, &ch16, 1);
-    }
-}
-
-static JSValue js_sub_string(JSContext *ctx, JSString *p, int start, int end)
-{
-    int len = end - start;
-    if (start == 0 && end == p->len) {
-        return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p));
-    }
-    if (p->is_wide_char && len > 0) {
-        JSString *str;
-        int i;
-        uint16_t c = 0;
-        for (i = start; i < end; i++) {
-            c |= p->u.str16[i];
-        }
-        if (c > 0xFF)
-            return js_new_string16(ctx, p->u.str16 + start, len);
-
-        str = js_alloc_string(ctx, len, 0);
-        if (!str)
-            return JS_EXCEPTION;
-        for (i = 0; i < len; i++) {
-            str->u.str8[i] = p->u.str16[start + i];
-        }
-        str->u.str8[len] = '\0';
-        return JS_MKPTR(JS_TAG_STRING, str);
-    } else {
-        return js_new_string8(ctx, p->u.str8 + start, len);
-    }
-}
-
-typedef struct StringBuffer {
-    JSContext *ctx;
-    JSString *str;
-    int len;
-    int size;
-    int is_wide_char;
-    int error_status;
-} StringBuffer;
-
-/* It is valid to call string_buffer_end() and all string_buffer functions even
-   if string_buffer_init() or another string_buffer function returns an error.
-   If the error_status is set, string_buffer_end() returns JS_EXCEPTION.
- */
-static int string_buffer_init2(JSContext *ctx, StringBuffer *s, int size,
-                               int is_wide)
-{
-    s->ctx = ctx;
-    s->size = size;
-    s->len = 0;
-    s->is_wide_char = is_wide;
-    s->error_status = 0;
-    s->str = js_alloc_string(ctx, size, is_wide);
-    if (unlikely(!s->str)) {
-        s->size = 0;
-        return s->error_status = -1;
-    }
-#ifdef DUMP_LEAKS
-    /* the StringBuffer may reallocate the JSString, only link it at the end */
-    list_del(&s->str->link);
-#endif
-    return 0;
-}
-
-static inline int string_buffer_init(JSContext *ctx, StringBuffer *s, int size)
-{
-    return string_buffer_init2(ctx, s, size, 0);
-}
-
-static void string_buffer_free(StringBuffer *s)
-{
-    js_free(s->ctx, s->str);
-    s->str = NULL;
-}
-
-static int string_buffer_set_error(StringBuffer *s)
-{
-    js_free(s->ctx, s->str);
-    s->str = NULL;
-    s->size = 0;
-    s->len = 0;
-    return s->error_status = -1;
-}
-
-static no_inline int string_buffer_widen(StringBuffer *s, int size)
-{
-    JSString *str;
-    size_t slack;
-    int i;
-
-    if (s->error_status)
-        return -1;
-
-    str = js_realloc2(s->ctx, s->str, sizeof(JSString) + (size << 1), &slack);
-    if (!str)
-        return string_buffer_set_error(s);
-    size += slack >> 1;
-    for(i = s->len; i-- > 0;) {
-        str->u.str16[i] = str->u.str8[i];
-    }
-    s->is_wide_char = 1;
-    s->size = size;
-    s->str = str;
-    return 0;
-}
-
-static no_inline int string_buffer_realloc(StringBuffer *s, int new_len, int c)
-{
-    JSString *new_str;
-    int new_size;
-    size_t new_size_bytes, slack;
-
-    if (s->error_status)
-        return -1;
-
-    if (new_len > JS_STRING_LEN_MAX) {
-        JS_ThrowInternalError(s->ctx, "string too long");
-        return string_buffer_set_error(s);
-    }
-    new_size = min_int(max_int(new_len, s->size * 3 / 2), JS_STRING_LEN_MAX);
-    if (!s->is_wide_char && c >= 0x100) {
-        return string_buffer_widen(s, new_size);
-    }
-    new_size_bytes = sizeof(JSString) + (new_size << s->is_wide_char) + 1 - s->is_wide_char;
-    new_str = js_realloc2(s->ctx, s->str, new_size_bytes, &slack);
-    if (!new_str)
-        return string_buffer_set_error(s);
-    new_size = min_int(new_size + (slack >> s->is_wide_char), JS_STRING_LEN_MAX);
-    s->size = new_size;
-    s->str = new_str;
-    return 0;
-}
-
-static no_inline int string_buffer_putc_slow(StringBuffer *s, uint32_t c)
-{
-    if (unlikely(s->len >= s->size)) {
-        if (string_buffer_realloc(s, s->len + 1, c))
-            return -1;
-    }
-    if (s->is_wide_char) {
-        s->str->u.str16[s->len++] = c;
-    } else if (c < 0x100) {
-        s->str->u.str8[s->len++] = c;
-    } else {
-        if (string_buffer_widen(s, s->size))
-            return -1;
-        s->str->u.str16[s->len++] = c;
-    }
-    return 0;
-}
-
-/* 0 <= c <= 0xff */
-static int string_buffer_putc8(StringBuffer *s, uint32_t c)
-{
-    if (unlikely(s->len >= s->size)) {
-        if (string_buffer_realloc(s, s->len + 1, c))
-            return -1;
-    }
-    if (s->is_wide_char) {
-        s->str->u.str16[s->len++] = c;
-    } else {
-        s->str->u.str8[s->len++] = c;
-    }
-    return 0;
-}
-
-/* 0 <= c <= 0xffff */
-static int string_buffer_putc16(StringBuffer *s, uint32_t c)
-{
-    if (likely(s->len < s->size)) {
-        if (s->is_wide_char) {
-            s->str->u.str16[s->len++] = c;
-            return 0;
-        } else if (c < 0x100) {
-            s->str->u.str8[s->len++] = c;
-            return 0;
-        }
-    }
-    return string_buffer_putc_slow(s, c);
-}
-
-/* 0 <= c <= 0x10ffff */
-static int string_buffer_putc(StringBuffer *s, uint32_t c)
-{
-    if (unlikely(c >= 0x10000)) {
-        /* surrogate pair */
-        c -= 0x10000;
-        if (string_buffer_putc16(s, (c >> 10) + 0xd800))
-            return -1;
-        c = (c & 0x3ff) + 0xdc00;
-    }
-    return string_buffer_putc16(s, c);
-}
-
-static int string_get(const JSString *p, int idx) {
-    return p->is_wide_char ? p->u.str16[idx] : p->u.str8[idx];
-}
-
-static int string_getc(const JSString *p, int *pidx)
-{
-    int idx, c, c1;
-    idx = *pidx;
-    if (p->is_wide_char) {
-        c = p->u.str16[idx++];
-        if (c >= 0xd800 && c < 0xdc00 && idx < p->len) {
-            c1 = p->u.str16[idx];
-            if (c1 >= 0xdc00 && c1 < 0xe000) {
-                c = (((c & 0x3ff) << 10) | (c1 & 0x3ff)) + 0x10000;
-                idx++;
-            }
-        }
-    } else {
-        c = p->u.str8[idx++];
-    }
-    *pidx = idx;
-    return c;
-}
-
-static int string_buffer_write8(StringBuffer *s, const uint8_t *p, int len)
-{
-    int i;
-
-    if (s->len + len > s->size) {
-        if (string_buffer_realloc(s, s->len + len, 0))
-            return -1;
-    }
-    if (s->is_wide_char) {
-        for (i = 0; i < len; i++) {
-            s->str->u.str16[s->len + i] = p[i];
-        }
-        s->len += len;
-    } else {
-        memcpy(&s->str->u.str8[s->len], p, len);
-        s->len += len;
-    }
-    return 0;
-}
-
-static int string_buffer_write16(StringBuffer *s, const uint16_t *p, int len)
-{
-    int c = 0, i;
-
-    for (i = 0; i < len; i++) {
-        c |= p[i];
-    }
-    if (s->len + len > s->size) {
-        if (string_buffer_realloc(s, s->len + len, c))
-            return -1;
-    } else if (!s->is_wide_char && c >= 0x100) {
-        if (string_buffer_widen(s, s->size))
-            return -1;
-    }
-    if (s->is_wide_char) {
-        memcpy(&s->str->u.str16[s->len], p, len << 1);
-        s->len += len;
-    } else {
-        for (i = 0; i < len; i++) {
-            s->str->u.str8[s->len + i] = p[i];
-        }
-        s->len += len;
-    }
-    return 0;
-}
-
-/* appending an ASCII string */
-static int string_buffer_puts8(StringBuffer *s, const char *str)
-{
-    return string_buffer_write8(s, (const uint8_t *)str, strlen(str));
-}
-
-static int string_buffer_concat(StringBuffer *s, const JSString *p,
-                                uint32_t from, uint32_t to)
-{
-    if (to <= from)
-        return 0;
-    if (p->is_wide_char)
-        return string_buffer_write16(s, p->u.str16 + from, to - from);
-    else
-        return string_buffer_write8(s, p->u.str8 + from, to - from);
-}
-
-static int string_buffer_concat_value(StringBuffer *s, JSValueConst v)
-{
-    JSString *p;
-    JSValue v1;
-    int res;
-
-    if (s->error_status) {
-        /* prevent exception overload */
-        return -1;
-    }
-    if (unlikely(JS_VALUE_GET_TAG(v) != JS_TAG_STRING)) {
-        v1 = JS_ToString(s->ctx, v);
-        if (JS_IsException(v1))
-            return string_buffer_set_error(s);
-        p = JS_VALUE_GET_STRING(v1);
-        res = string_buffer_concat(s, p, 0, p->len);
-        JS_FreeValue(s->ctx, v1);
-        return res;
-    }
-    p = JS_VALUE_GET_STRING(v);
-    return string_buffer_concat(s, p, 0, p->len);
-}
-
-static int string_buffer_concat_value_free(StringBuffer *s, JSValue v)
-{
-    JSString *p;
-    int res;
-
-    if (s->error_status) {
-        /* prevent exception overload */
-        JS_FreeValue(s->ctx, v);
-        return -1;
-    }
-    if (unlikely(JS_VALUE_GET_TAG(v) != JS_TAG_STRING)) {
-        v = JS_ToStringFree(s->ctx, v);
-        if (JS_IsException(v))
-            return string_buffer_set_error(s);
-    }
-    p = JS_VALUE_GET_STRING(v);
-    res = string_buffer_concat(s, p, 0, p->len);
-    JS_FreeValue(s->ctx, v);
-    return res;
-}
-
-static int string_buffer_fill(StringBuffer *s, int c, int count)
-{
-    /* XXX: optimize */
-    if (s->len + count > s->size) {
-        if (string_buffer_realloc(s, s->len + count, c))
-            return -1;
-    }
-    while (count-- > 0) {
-        if (string_buffer_putc16(s, c))
-            return -1;
-    }
-    return 0;
-}
-
-static JSValue string_buffer_end(StringBuffer *s)
-{
-    JSString *str;
-    str = s->str;
-    if (s->error_status)
-        return JS_EXCEPTION;
-    if (s->len == 0) {
-        js_free(s->ctx, str);
-        s->str = NULL;
-        return JS_AtomToString(s->ctx, JS_ATOM_empty_string);
-    }
-    if (s->len < s->size) {
-        /* smaller size so js_realloc should not fail, but OK if it does */
-        /* XXX: should add some slack to avoid unnecessary calls */
-        /* XXX: might need to use malloc+free to ensure smaller size */
-        str = js_realloc_rt(s->ctx->rt, str, sizeof(JSString) +
-                            (s->len << s->is_wide_char) + 1 - s->is_wide_char);
-        if (str == NULL)
-            str = s->str;
-        s->str = str;
-    }
-    if (!s->is_wide_char)
-        str->u.str8[s->len] = 0;
-#ifdef DUMP_LEAKS
-    list_add_tail(&str->link, &s->ctx->rt->string_list);
-#endif
-    str->is_wide_char = s->is_wide_char;
-    str->len = s->len;
-    s->str = NULL;
-    return JS_MKPTR(JS_TAG_STRING, str);
-}
-
-/* create a string from a UTF-8 buffer */
-JSValue JS_NewStringLen(JSContext *ctx, const char *buf, size_t buf_len)
-{
-    const uint8_t *p, *p_end, *p_start, *p_next;
-    uint32_t c;
-    StringBuffer b_s, *b = &b_s;
-    size_t len1;
-    
-    p_start = (const uint8_t *)buf;
-    p_end = p_start + buf_len;
-    p = p_start;
-    while (p < p_end && *p < 128)
-        p++;
-    len1 = p - p_start;
-    if (len1 > JS_STRING_LEN_MAX)
-        return JS_ThrowInternalError(ctx, "string too long");
-    if (p == p_end) {
-        /* ASCII string */
-        return js_new_string8(ctx, (const uint8_t *)buf, buf_len);
-    } else {
-        if (string_buffer_init(ctx, b, buf_len))
-            goto fail;
-        string_buffer_write8(b, p_start, len1);
-        while (p < p_end) {
-            if (*p < 128) {
-                string_buffer_putc8(b, *p++);
-            } else {
-                /* parse utf-8 sequence, return 0xFFFFFFFF for error */
-                c = unicode_from_utf8(p, p_end - p, &p_next);
-                if (c < 0x10000) {
-                    p = p_next;
-                } else if (c <= 0x10FFFF) {
-                    p = p_next;
-                    /* surrogate pair */
-                    c -= 0x10000;
-                    string_buffer_putc16(b, (c >> 10) + 0xd800);
-                    c = (c & 0x3ff) + 0xdc00;
-                } else {
-                    /* invalid char */
-                    c = 0xfffd;
-                    /* skip the invalid chars */
-                    /* XXX: seems incorrect. Why not just use c = *p++; ? */
-                    while (p < p_end && (*p >= 0x80 && *p < 0xc0))
-                        p++;
-                    if (p < p_end) {
-                        p++;
-                        while (p < p_end && (*p >= 0x80 && *p < 0xc0))
-                            p++;
-                    }
-                }
-                string_buffer_putc16(b, c);
-            }
-        }
-    }
-    return string_buffer_end(b);
-
- fail:
-    string_buffer_free(b);
-    return JS_EXCEPTION;
-}
-
-static JSValue JS_ConcatString3(JSContext *ctx, const char *str1,
-                                JSValue str2, const char *str3)
-{
-    StringBuffer b_s, *b = &b_s;
-    int len1, len3;
-    JSString *p;
-
-    if (unlikely(JS_VALUE_GET_TAG(str2) != JS_TAG_STRING)) {
-        str2 = JS_ToStringFree(ctx, str2);
-        if (JS_IsException(str2))
-            goto fail;
-    }
-    p = JS_VALUE_GET_STRING(str2);
-    len1 = strlen(str1);
-    len3 = strlen(str3);
-
-    if (string_buffer_init2(ctx, b, len1 + p->len + len3, p->is_wide_char))
-        goto fail;
-
-    string_buffer_write8(b, (const uint8_t *)str1, len1);
-    string_buffer_concat(b, p, 0, p->len);
-    string_buffer_write8(b, (const uint8_t *)str3, len3);
-
-    JS_FreeValue(ctx, str2);
-    return string_buffer_end(b);
-
- fail:
-    JS_FreeValue(ctx, str2);
-    return JS_EXCEPTION;
-}
-
-JSValue JS_NewString(JSContext *ctx, const char *str)
-{
-    return JS_NewStringLen(ctx, str, strlen(str));
-}
-
-JSValue JS_NewAtomString(JSContext *ctx, const char *str)
-{
-    JSAtom atom = JS_NewAtom(ctx, str);
-    if (atom == JS_ATOM_NULL)
-        return JS_EXCEPTION;
-    JSValue val = JS_AtomToString(ctx, atom);
-    JS_FreeAtom(ctx, atom);
-    return val;
-}
-
-/* return (NULL, 0) if exception. */
-/* return pointer into a JSString with a live ref_count */
-/* cesu8 determines if non-BMP1 codepoints are encoded as 1 or 2 utf-8 sequences */
-const char *JS_ToCStringLen2(JSContext *ctx, size_t *plen, JSValueConst val1, BOOL cesu8)
-{
-    JSValue val;
-    JSString *str, *str_new;
-    int pos, len, c, c1;
-    uint8_t *q;
-
-    if (JS_VALUE_GET_TAG(val1) != JS_TAG_STRING) {
-        val = JS_ToString(ctx, val1);
-        if (JS_IsException(val))
-            goto fail;
-    } else {
-        val = JS_DupValue(ctx, val1);
-    }
-
-    str = JS_VALUE_GET_STRING(val);
-    len = str->len;
-    if (!str->is_wide_char) {
-        const uint8_t *src = str->u.str8;
-        int count;
-
-        /* count the number of non-ASCII characters */
-        /* Scanning the whole string is required for ASCII strings,
-           and computing the number of non-ASCII bytes is less expensive
-           than testing each byte, hence this method is faster for ASCII
-           strings, which is the most common case.
-         */
-        count = 0;
-        for (pos = 0; pos < len; pos++) {
-            count += src[pos] >> 7;
-        }
-        if (count == 0) {
-            if (plen)
-                *plen = len;
-            return (const char *)src;
-        }
-        str_new = js_alloc_string(ctx, len + count, 0);
-        if (!str_new)
-            goto fail;
-        q = str_new->u.str8;
-        for (pos = 0; pos < len; pos++) {
-            c = src[pos];
-            if (c < 0x80) {
-                *q++ = c;
-            } else {
-                *q++ = (c >> 6) | 0xc0;
-                *q++ = (c & 0x3f) | 0x80;
-            }
-        }
-    } else {
-        const uint16_t *src = str->u.str16;
-        /* Allocate 3 bytes per 16 bit code point. Surrogate pairs may
-           produce 4 bytes but use 2 code points.
-         */
-        str_new = js_alloc_string(ctx, len * 3, 0);
-        if (!str_new)
-            goto fail;
-        q = str_new->u.str8;
-        pos = 0;
-        while (pos < len) {
-            c = src[pos++];
-            if (c < 0x80) {
-                *q++ = c;
-            } else {
-                if (c >= 0xd800 && c < 0xdc00) {
-                    if (pos < len && !cesu8) {
-                        c1 = src[pos];
-                        if (c1 >= 0xdc00 && c1 < 0xe000) {
-                            pos++;
-                            /* surrogate pair */
-                            c = (((c & 0x3ff) << 10) | (c1 & 0x3ff)) + 0x10000;
-                        } else {
-                            /* Keep unmatched surrogate code points */
-                            /* c = 0xfffd; */ /* error */
-                        }
-                    } else {
-                        /* Keep unmatched surrogate code points */
-                        /* c = 0xfffd; */ /* error */
-                    }
-                }
-                q += unicode_to_utf8(q, c);
-            }
-        }
-    }
-
-    *q = '\0';
-    str_new->len = q - str_new->u.str8;
-    JS_FreeValue(ctx, val);
-    if (plen)
-        *plen = str_new->len;
-    return (const char *)str_new->u.str8;
- fail:
-    if (plen)
-        *plen = 0;
-    return NULL;
-}
-
-void JS_FreeCString(JSContext *ctx, const char *ptr)
-{
-    JSString *p;
-    if (!ptr)
-        return;
-    /* purposely removing constness */
-    p = (JSString *)(void *)(ptr - offsetof(JSString, u));
-    JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, p));
-}
-
-static int memcmp16_8(const uint16_t *src1, const uint8_t *src2, int len)
-{
-    int c, i;
-    for(i = 0; i < len; i++) {
-        c = src1[i] - src2[i];
-        if (c != 0)
-            return c;
-    }
-    return 0;
-}
-
-static int memcmp16(const uint16_t *src1, const uint16_t *src2, int len)
-{
-    int c, i;
-    for(i = 0; i < len; i++) {
-        c = src1[i] - src2[i];
-        if (c != 0)
-            return c;
-    }
-    return 0;
-}
-
-static int js_string_memcmp(const JSString *p1, const JSString *p2, int len)
-{
-    int res;
-
-    if (likely(!p1->is_wide_char)) {
-        if (likely(!p2->is_wide_char))
-            res = memcmp(p1->u.str8, p2->u.str8, len);
-        else
-            res = -memcmp16_8(p2->u.str16, p1->u.str8, len);
-    } else {
-        if (!p2->is_wide_char)
-            res = memcmp16_8(p1->u.str16, p2->u.str8, len);
-        else
-            res = memcmp16(p1->u.str16, p2->u.str16, len);
-    }
-    return res;
-}
-
-/* return < 0, 0 or > 0 */
-static int js_string_compare(JSContext *ctx,
-                             const JSString *p1, const JSString *p2)
-{
-    int res, len;
-    len = min_int(p1->len, p2->len);
-    res = js_string_memcmp(p1, p2, len);
-    if (res == 0) {
-        if (p1->len == p2->len)
-            res = 0;
-        else if (p1->len < p2->len)
-            res = -1;
-        else
-            res = 1;
-    }
-    return res;
-}
-
-static void copy_str16(uint16_t *dst, const JSString *p, int offset, int len)
-{
-    if (p->is_wide_char) {
-        memcpy(dst, p->u.str16 + offset, len * 2);
-    } else {
-        const uint8_t *src1 = p->u.str8 + offset;
-        int i;
-
-        for(i = 0; i < len; i++)
-            dst[i] = src1[i];
-    }
-}
-
-static JSValue JS_ConcatString1(JSContext *ctx,
-                                const JSString *p1, const JSString *p2)
-{
-    JSString *p;
-    uint32_t len;
-    int is_wide_char;
-
-    len = p1->len + p2->len;
-    if (len > JS_STRING_LEN_MAX)
-        return JS_ThrowInternalError(ctx, "string too long");
-    is_wide_char = p1->is_wide_char | p2->is_wide_char;
-    p = js_alloc_string(ctx, len, is_wide_char);
-    if (!p)
-        return JS_EXCEPTION;
-    if (!is_wide_char) {
-        memcpy(p->u.str8, p1->u.str8, p1->len);
-        memcpy(p->u.str8 + p1->len, p2->u.str8, p2->len);
-        p->u.str8[len] = '\0';
-    } else {
-        copy_str16(p->u.str16, p1, 0, p1->len);
-        copy_str16(p->u.str16 + p1->len, p2, 0, p2->len);
-    }
-    return JS_MKPTR(JS_TAG_STRING, p);
-}
-
-/* op1 and op2 are converted to strings. For convience, op1 or op2 =
-   JS_EXCEPTION are accepted and return JS_EXCEPTION.  */
-static JSValue JS_ConcatString(JSContext *ctx, JSValue op1, JSValue op2)
-{
-    JSValue ret;
-    JSString *p1, *p2;
-
-    if (unlikely(JS_VALUE_GET_TAG(op1) != JS_TAG_STRING)) {
-        op1 = JS_ToStringFree(ctx, op1);
-        if (JS_IsException(op1)) {
-            JS_FreeValue(ctx, op2);
-            return JS_EXCEPTION;
-        }
-    }
-    if (unlikely(JS_VALUE_GET_TAG(op2) != JS_TAG_STRING)) {
-        op2 = JS_ToStringFree(ctx, op2);
-        if (JS_IsException(op2)) {
-            JS_FreeValue(ctx, op1);
-            return JS_EXCEPTION;
-        }
-    }
-    p1 = JS_VALUE_GET_STRING(op1);
-    p2 = JS_VALUE_GET_STRING(op2);
-
-    /* XXX: could also check if p1 is empty */
-    if (p2->len == 0) {
-        goto ret_op1;
-    }
-    if (p1->header.ref_count == 1 && p1->is_wide_char == p2->is_wide_char
-    &&  js_malloc_usable_size(ctx, p1) >= sizeof(*p1) + ((p1->len + p2->len) << p2->is_wide_char) + 1 - p1->is_wide_char) {
-        /* Concatenate in place in available space at the end of p1 */
-        if (p1->is_wide_char) {
-            memcpy(p1->u.str16 + p1->len, p2->u.str16, p2->len << 1);
-            p1->len += p2->len;
-        } else {
-            memcpy(p1->u.str8 + p1->len, p2->u.str8, p2->len);
-            p1->len += p2->len;
-            p1->u.str8[p1->len] = '\0';
-        }
-    ret_op1:
-        JS_FreeValue(ctx, op2);
-        return op1;
-    }
-    ret = JS_ConcatString1(ctx, p1, p2);
-    JS_FreeValue(ctx, op1);
-    JS_FreeValue(ctx, op2);
-    return ret;
-}
-
-/* Shape support */
-
-static inline size_t get_shape_size(size_t hash_size, size_t prop_size)
-{
-    return hash_size * sizeof(uint32_t) + sizeof(JSShape) +
-        prop_size * sizeof(JSShapeProperty);
-}
-
-static inline JSShape *get_shape_from_alloc(void *sh_alloc, size_t hash_size)
-{
-    return (JSShape *)(void *)((uint32_t *)sh_alloc + hash_size);
-}
-
-static inline void *get_alloc_from_shape(JSShape *sh)
-{
-    return sh->prop_hash_end - ((intptr_t)sh->prop_hash_mask + 1);
-}
-
-static inline JSShapeProperty *get_shape_prop(JSShape *sh)
-{
-    return sh->prop;
-}
-
-static int init_shape_hash(JSRuntime *rt)
-{
-    rt->shape_hash_bits = 4;   /* 16 shapes */
-    rt->shape_hash_size = 1 << rt->shape_hash_bits;
-    rt->shape_hash_count = 0;
-    rt->shape_hash = js_mallocz_rt(rt, sizeof(rt->shape_hash[0]) *
-                                   rt->shape_hash_size);
-    if (!rt->shape_hash)
-        return -1;
-    return 0;
-}
-
-/* same magic hash multiplier as the Linux kernel */
-static uint32_t shape_hash(uint32_t h, uint32_t val)
-{
-    return (h + val) * 0x9e370001;
-}
-
-/* truncate the shape hash to 'hash_bits' bits */
-static uint32_t get_shape_hash(uint32_t h, int hash_bits)
-{
-    return h >> (32 - hash_bits);
-}
-
-static uint32_t shape_initial_hash(JSObject *proto)
-{
-    uint32_t h;
-    h = shape_hash(1, (uintptr_t)proto);
-    if (sizeof(proto) > 4)
-        h = shape_hash(h, (uint64_t)(uintptr_t)proto >> 32);
-    return h;
-}
-
-static int resize_shape_hash(JSRuntime *rt, int new_shape_hash_bits)
-{
-    int new_shape_hash_size, i;
-    uint32_t h;
-    JSShape **new_shape_hash, *sh, *sh_next;
-
-    new_shape_hash_size = 1 << new_shape_hash_bits;
-    new_shape_hash = js_mallocz_rt(rt, sizeof(rt->shape_hash[0]) *
-                                   new_shape_hash_size);
-    if (!new_shape_hash)
-        return -1;
-    for(i = 0; i < rt->shape_hash_size; i++) {
-        for(sh = rt->shape_hash[i]; sh != NULL; sh = sh_next) {
-            sh_next = sh->shape_hash_next;
-            h = get_shape_hash(sh->hash, new_shape_hash_bits);
-            sh->shape_hash_next = new_shape_hash[h];
-            new_shape_hash[h] = sh;
-        }
-    }
-    js_free_rt(rt, rt->shape_hash);
-    rt->shape_hash_bits = new_shape_hash_bits;
-    rt->shape_hash_size = new_shape_hash_size;
-    rt->shape_hash = new_shape_hash;
-    return 0;
-}
-
-static void js_shape_hash_link(JSRuntime *rt, JSShape *sh)
-{
-    uint32_t h;
-    h = get_shape_hash(sh->hash, rt->shape_hash_bits);
-    sh->shape_hash_next = rt->shape_hash[h];
-    rt->shape_hash[h] = sh;
-    rt->shape_hash_count++;
-}
-
-static void js_shape_hash_unlink(JSRuntime *rt, JSShape *sh)
-{
-    uint32_t h;
-    JSShape **psh;
-
-    h = get_shape_hash(sh->hash, rt->shape_hash_bits);
-    psh = &rt->shape_hash[h];
-    while (*psh != sh)
-        psh = &(*psh)->shape_hash_next;
-    *psh = sh->shape_hash_next;
-    rt->shape_hash_count--;
-}
-
-/* create a new empty shape with prototype 'proto' */
-static no_inline JSShape *js_new_shape2(JSContext *ctx, JSObject *proto,
-                                        int hash_size, int prop_size)
-{
-    JSRuntime *rt = ctx->rt;
-    void *sh_alloc;
-    JSShape *sh;
-
-    /* resize the shape hash table if necessary */
-    if (2 * (rt->shape_hash_count + 1) > rt->shape_hash_size) {
-        resize_shape_hash(rt, rt->shape_hash_bits + 1);
-    }
-
-    sh_alloc = js_malloc(ctx, get_shape_size(hash_size, prop_size));
-    if (!sh_alloc)
-        return NULL;
-    sh = get_shape_from_alloc(sh_alloc, hash_size);
-    sh->header.ref_count = 1;
-    sh->gc_header.mark = 0;
-    if (proto)
-        JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, proto));
-    sh->proto = proto;
-    memset(sh->prop_hash_end - hash_size, 0, sizeof(sh->prop_hash_end[0]) *
-           hash_size);
-    sh->prop_hash_mask = hash_size - 1;
-    sh->prop_count = 0;
-    sh->prop_size = prop_size;
-
-    /* insert in the hash table */
-    sh->hash = shape_initial_hash(proto);
-    sh->is_hashed = TRUE;
-    sh->has_small_array_index = FALSE;
-    js_shape_hash_link(ctx->rt, sh);
-    return sh;
-}
-
-static JSShape *js_new_shape(JSContext *ctx, JSObject *proto)
-{
-    return js_new_shape2(ctx, proto, JS_PROP_INITIAL_HASH_SIZE,
-                         JS_PROP_INITIAL_SIZE);
-}
-
-/* The shape is cloned. The new shape is not inserted in the shape
-   hash table */
-static JSShape *js_clone_shape(JSContext *ctx, JSShape *sh1)
-{
-    JSShape *sh;
-    void *sh_alloc, *sh_alloc1;
-    size_t size;
-    JSShapeProperty *pr;
-    uint32_t i, hash_size;
-
-    hash_size = sh1->prop_hash_mask + 1;
-    size = get_shape_size(hash_size, sh1->prop_size);
-    sh_alloc = js_malloc(ctx, size);
-    if (!sh_alloc)
-        return NULL;
-    sh_alloc1 = get_alloc_from_shape(sh1);
-    memcpy(sh_alloc, sh_alloc1, size);
-    sh = get_shape_from_alloc(sh_alloc, hash_size);
-    sh->header.ref_count = 1;
-    sh->gc_header.mark = 0;
-    sh->is_hashed = FALSE;
-    if (sh->proto) {
-        JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, sh->proto));
-    }
-    for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count; i++, pr++) {
-        JS_DupAtom(ctx, pr->atom);
-    }
-    return sh;
-}
-
-static JSShape *js_dup_shape(JSShape *sh)
-{
-    sh->header.ref_count++;
-    return sh;
-}
-
-static void js_free_shape(JSRuntime *rt, JSShape *sh)
-{
-    uint32_t i;
-    JSShapeProperty *pr;
-
-    if (unlikely(--sh->header.ref_count <= 0)) {
-        assert(sh->header.ref_count == 0);
-        if (sh->is_hashed)
-            js_shape_hash_unlink(rt, sh);
-        if (sh->proto != NULL) {
-            JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, sh->proto));
-        }
-        pr = get_shape_prop(sh);
-        for(i = 0; i < sh->prop_count; i++) {
-            JS_FreeAtomRT(rt, pr->atom);
-            pr++;
-        }
-        js_free_rt(rt, get_alloc_from_shape(sh));
-    }
-}
-
-static void js_free_shape_null(JSRuntime *rt, JSShape *sh)
-{
-    if (sh)
-        js_free_shape(rt, sh);
-}
-
-/* make space to hold at least 'count' properties */
-static no_inline int resize_properties(JSContext *ctx, JSShape **psh,
-                                       JSObject *p, uint32_t count)
-{
-    JSShape *sh;
-    uint32_t new_size, new_hash_size, new_hash_mask, i;
-    JSShapeProperty *pr;
-    void *sh_alloc;
-    intptr_t h;
-
-    sh = *psh;
-    new_size = max_int(count, sh->prop_size * 3 / 2);
-    /* Reallocate prop array first to avoid crash or size inconsistency
-       in case of memory allocation failure */
-    if (p) {
-        JSProperty *new_prop;
-        new_prop = js_realloc(ctx, p->prop, sizeof(new_prop[0]) * new_size);
-        if (unlikely(!new_prop))
-            return -1;
-        p->prop = new_prop;
-    }
-    new_hash_size = sh->prop_hash_mask + 1;
-    while (new_hash_size < new_size)
-        new_hash_size = 2 * new_hash_size;
-    if (new_hash_size != (sh->prop_hash_mask + 1)) {
-        JSShape *old_sh;
-        /* resize the hash table and the properties */
-        old_sh = sh;
-        sh_alloc = js_malloc(ctx, get_shape_size(new_hash_size, new_size));
-        if (!sh_alloc)
-            return -1;
-        sh = get_shape_from_alloc(sh_alloc, new_hash_size);
-        /* copy all the fields and the properties */
-        memcpy(sh, old_sh,
-               sizeof(JSShape) + sizeof(sh->prop[0]) * old_sh->prop_count);
-        new_hash_mask = new_hash_size - 1;
-        sh->prop_hash_mask = new_hash_mask;
-        memset(sh->prop_hash_end - new_hash_size, 0,
-               sizeof(sh->prop_hash_end[0]) * new_hash_size);
-        for(i = 0, pr = sh->prop; i < sh->prop_count; i++, pr++) {
-            if (pr->atom != JS_ATOM_NULL) {
-                h = ((uintptr_t)pr->atom & new_hash_mask);
-                pr->hash_next = sh->prop_hash_end[-h - 1];
-                sh->prop_hash_end[-h - 1] = i + 1;
-            }
-        }
-        js_free(ctx, get_alloc_from_shape(old_sh));
-    } else {
-        /* only resize the properties */
-        sh_alloc = js_realloc(ctx, get_alloc_from_shape(sh),
-                              get_shape_size(new_hash_size, new_size));
-        if (unlikely(!sh_alloc))
-            return -1;
-        sh = get_shape_from_alloc(sh_alloc, new_hash_size);
-    }
-    *psh = sh;
-    sh->prop_size = new_size;
-    return 0;
-}
-
-static int add_shape_property(JSContext *ctx, JSShape **psh,
-                              JSObject *p, JSAtom atom, int prop_flags)
-{
-    JSRuntime *rt = ctx->rt;
-    JSShape *sh = *psh;
-    JSShapeProperty *pr, *prop;
-    uint32_t hash_mask, new_shape_hash = 0;
-    intptr_t h;
-
-    /* update the shape hash */
-    if (sh->is_hashed) {
-        js_shape_hash_unlink(rt, sh);
-        new_shape_hash = shape_hash(shape_hash(sh->hash, atom), prop_flags);
-    }
-
-    if (unlikely(sh->prop_count >= sh->prop_size)) {
-        if (resize_properties(ctx, psh, p, sh->prop_count + 1)) {
-            /* in case of error, reinsert in the hash table.
-               sh is still valid if resize_properties() failed */
-            if (sh->is_hashed)
-                js_shape_hash_link(rt, sh);
-            return -1;
-        }
-        sh = *psh;
-    }
-    if (sh->is_hashed) {
-        sh->hash = new_shape_hash;
-        js_shape_hash_link(rt, sh);
-    }
-    /* Initialize the new shape property.
-       The object property at p->prop[sh->prop_count] is uninitialized */
-    prop = get_shape_prop(sh);
-    pr = &prop[sh->prop_count++];
-    pr->atom = JS_DupAtom(ctx, atom);
-    pr->flags = prop_flags;
-    sh->has_small_array_index |= __JS_AtomIsTaggedInt(atom);
-    /* add in hash table */
-    hash_mask = sh->prop_hash_mask;
-    h = atom & hash_mask;
-    pr->hash_next = sh->prop_hash_end[-h - 1];
-    sh->prop_hash_end[-h - 1] = sh->prop_count;
-    return 0;
-}
-
-/* find a hashed empty shape matching the prototype. Return NULL if
-   not found */
-static JSShape *find_hashed_shape_proto(JSRuntime *rt, JSObject *proto)
-{
-    JSShape *sh1;
-    uint32_t h, h1;
-
-    h = shape_initial_hash(proto);
-    h1 = get_shape_hash(h, rt->shape_hash_bits);
-    for(sh1 = rt->shape_hash[h1]; sh1 != NULL; sh1 = sh1->shape_hash_next) {
-        if (sh1->hash == h &&
-            sh1->proto == proto &&
-            sh1->prop_count == 0) {
-            return sh1;
-        }
-    }
-    return NULL;
-}
-
-/* find a hashed shape matching sh + (prop, prop_flags). Return NULL if
-   not found */
-static JSShape *find_hashed_shape_prop(JSRuntime *rt, JSShape *sh,
-                                       JSAtom atom, int prop_flags)
-{
-    JSShape *sh1;
-    uint32_t h, h1, i, n;
-
-    h = sh->hash;
-    h = shape_hash(h, atom);
-    h = shape_hash(h, prop_flags);
-    h1 = get_shape_hash(h, rt->shape_hash_bits);
-    for(sh1 = rt->shape_hash[h1]; sh1 != NULL; sh1 = sh1->shape_hash_next) {
-        /* we test the hash first so that the rest is done only if the
-           shapes really match */
-        if (sh1->hash == h &&
-            sh1->proto == sh->proto &&
-            sh1->prop_count == ((n = sh->prop_count) + 1)) {
-            for(i = 0; i < n; i++) {
-                if (unlikely(sh1->prop[i].atom != sh->prop[i].atom) ||
-                    unlikely(sh1->prop[i].flags != sh->prop[i].flags))
-                    goto next;
-            }
-            if (unlikely(sh1->prop[n].atom != atom) ||
-                unlikely(sh1->prop[n].flags != prop_flags))
-                goto next;
-            return sh1;
-        }
-    next: ;
-    }
-    return NULL;
-}
-
-static __attribute__((unused)) void JS_DumpShape(JSRuntime *rt, int i, JSShape *sh)
-{
-    char atom_buf[ATOM_GET_STR_BUF_SIZE];
-    int j;
-
-    /* XXX: should output readable class prototype */
-    printf("%5d %3d%c %14p %5d %5d", i,
-           sh->header.ref_count, " *"[sh->is_hashed],
-           (void *)sh->proto, sh->prop_size, sh->prop_count);
-    for(j = 0; j < sh->prop_count; j++) {
-        printf(" %s", JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf),
-                                      sh->prop[j].atom));
-    }
-    printf("\n");
-}
-
-static __attribute__((unused)) void JS_DumpShapes(JSRuntime *rt)
-{
-    int i;
-    JSShape *sh;
-    struct list_head *el;
-    JSObject *p;
-
-    printf("JSShapes: {\n");
-    printf("%5s %4s %14s %5s %5s %s\n", "SLOT", "REFS", "PROTO", "SIZE", "COUNT", "PROPS");
-    for(i = 0; i < rt->shape_hash_size; i++) {
-        for(sh = rt->shape_hash[i]; sh != NULL; sh = sh->shape_hash_next) {
-            JS_DumpShape(rt, i, sh);
-            assert(sh->is_hashed);
-        }
-    }
-    /* dump non-hashed shapes */
-    list_for_each(el, &rt->obj_list) {
-        p = list_entry(el, JSObject, link);
-        if (!p->shape->is_hashed) {
-            JS_DumpShape(rt, -1, p->shape);
-        }
-    }
-    printf("}\n");
-}
-
-static JSValue JS_NewObjectFromShape(JSContext *ctx, JSShape *sh, JSClassID class_id)
-{
-    JSObject *p;
-
-    js_trigger_gc(ctx->rt, sizeof(JSObject));
-    p = js_malloc(ctx, sizeof(JSObject));
-    if (unlikely(!p))
-        goto fail;
-    p->header.ref_count = 1;
-    p->gc_header.mark = 0;
-    p->class_id = class_id;
-    p->extensible = TRUE;
-    p->free_mark = 0;
-    p->is_exotic = 0;
-    p->fast_array = 0;
-    p->is_constructor = 0;
-    p->is_uncatchable_error = 0;
-    p->is_class = 0;
-    p->tmp_mark = 0;
-    p->first_weak_ref = NULL;
-    p->u.opaque = NULL;
-    p->shape = sh;
-    p->prop = js_malloc(ctx, sizeof(JSProperty) * sh->prop_size);
-    if (unlikely(!p->prop)) {
-        js_free(ctx, p);
-    fail:
-        js_free_shape(ctx->rt, sh);
-        return JS_EXCEPTION;
-    }
-
-    switch(class_id) {
-    case JS_CLASS_OBJECT:
-        break;
-    case JS_CLASS_ARRAY:
-        {
-            JSProperty *pr;
-            p->is_exotic = 1;
-            p->fast_array = 1;
-            p->u.array.u.values = NULL;
-            p->u.array.count = 0;
-            p->u.array.u1.size = 0;
-            /* the length property is always the first one */
-            if (likely(sh == ctx->array_shape)) {
-                pr = &p->prop[0];
-            } else {
-                /* only used for the first array */
-                /* cannot fail */
-                pr = add_property(ctx, p, JS_ATOM_length,
-                                  JS_PROP_WRITABLE | JS_PROP_LENGTH);
-            }
-            pr->u.value = JS_NewInt32(ctx, 0);
-        }
-        break;
-    case JS_CLASS_C_FUNCTION:
-        p->prop[0].u.value = JS_UNDEFINED;
-        break;
-    case JS_CLASS_ARGUMENTS:
-    case JS_CLASS_UINT8C_ARRAY ... JS_CLASS_FLOAT64_ARRAY:
-        p->is_exotic = 1;
-        p->fast_array = 1;
-        p->u.array.u.ptr = NULL;
-        p->u.array.count = 0;
-        break;
-    case JS_CLASS_DATAVIEW:
-        p->u.array.u.ptr = NULL;
-        p->u.array.count = 0;
-        break;
-    case JS_CLASS_NUMBER:
-    case JS_CLASS_STRING:
-    case JS_CLASS_BOOLEAN:
-    case JS_CLASS_SYMBOL:
-    case JS_CLASS_DATE:
-#ifdef CONFIG_BIGNUM
-    case JS_CLASS_BIG_INT:
-    case JS_CLASS_BIG_FLOAT:
-#endif
-        p->u.object_data = JS_UNDEFINED;
-        goto set_exotic;
-    case JS_CLASS_REGEXP:
-        p->u.regexp.pattern = NULL;
-        p->u.regexp.bytecode = NULL;
-        goto set_exotic;
-    default:
-    set_exotic:
-        if (ctx->rt->class_array[class_id].exotic) {
-            p->is_exotic = 1;
-        }
-        break;
-    }
-    list_add_tail(&p->link, &ctx->rt->obj_list);
-    return JS_MKPTR(JS_TAG_OBJECT, p);
-}
-
-static JSObject *get_proto_obj(JSValueConst proto_val)
-{
-    if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_OBJECT)
-        return NULL;
-    else
-        return JS_VALUE_GET_OBJ(proto_val);
-}
-
-/* WARNING: proto must be an object or JS_NULL */
-JSValue JS_NewObjectProtoClass(JSContext *ctx, JSValueConst proto_val,
-                               JSClassID class_id)
-{
-    JSShape *sh;
-    JSObject *proto;
-
-    proto = get_proto_obj(proto_val);
-    sh = find_hashed_shape_proto(ctx->rt, proto);
-    if (likely(sh)) {
-        sh = js_dup_shape(sh);
-    } else {
-        sh = js_new_shape(ctx, proto);
-        if (!sh)
-            return JS_EXCEPTION;
-    }
-    return JS_NewObjectFromShape(ctx, sh, class_id);
-}
-
-#if 0
-static JSValue JS_GetObjectData(JSContext *ctx, JSValueConst obj)
-{
-    JSObject *p;
-
-    if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
-        p = JS_VALUE_GET_OBJ(obj);
-        switch(p->class_id) {
-        case JS_CLASS_NUMBER:
-        case JS_CLASS_STRING:
-        case JS_CLASS_BOOLEAN:
-        case JS_CLASS_SYMBOL:
-        case JS_CLASS_DATE:
-#ifdef CONFIG_BIGNUM
-        case JS_CLASS_BIG_INT:
-        case JS_CLASS_BIG_FLOAT:
-#endif
-            return JS_DupValue(ctx, p->u.object_data);
-        }
-    }
-    return JS_UNDEFINED;
-}
-#endif
-
-static int JS_SetObjectData(JSContext *ctx, JSValueConst obj, JSValue val)
-{
-    JSObject *p;
-
-    if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
-        p = JS_VALUE_GET_OBJ(obj);
-        switch(p->class_id) {
-        case JS_CLASS_NUMBER:
-        case JS_CLASS_STRING:
-        case JS_CLASS_BOOLEAN:
-        case JS_CLASS_SYMBOL:
-        case JS_CLASS_DATE:
-#ifdef CONFIG_BIGNUM
-        case JS_CLASS_BIG_INT:
-        case JS_CLASS_BIG_FLOAT:
-#endif
-            JS_FreeValue(ctx, p->u.object_data);
-            p->u.object_data = val;
-            return 0;
-        }
-    }
-    JS_FreeValue(ctx, val);
-    if (!JS_IsException(obj))
-        JS_ThrowTypeError(ctx, "invalid object type");
-    return -1;
-}
-
-JSValue JS_NewObjectClass(JSContext *ctx, int class_id)
-{
-    return JS_NewObjectProtoClass(ctx, ctx->class_proto[class_id], class_id);
-}
-
-JSValue JS_NewObjectProto(JSContext *ctx, JSValueConst proto)
-{
-    return JS_NewObjectProtoClass(ctx, proto, JS_CLASS_OBJECT);
-}
-
-JSValue JS_NewArray(JSContext *ctx)
-{
-    return JS_NewObjectFromShape(ctx, js_dup_shape(ctx->array_shape),
-                                 JS_CLASS_ARRAY);
-}
-
-JSValue JS_NewObject(JSContext *ctx)
-{
-    /* inline JS_NewObjectClass(ctx, JS_CLASS_OBJECT); */
-    return JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT], JS_CLASS_OBJECT);
-}
-
-static void js_function_set_properties(JSContext *ctx, JSValueConst func_obj,
-                                       JSValue name, int len)
-{
-    /* ES6 feature non compatible with ES5.1: length is configurable */
-    JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_length, JS_NewInt32(ctx, len),
-                           JS_PROP_CONFIGURABLE);
-    if (!JS_IsUndefined(name)) {
-        JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_name, name,
-                               JS_PROP_CONFIGURABLE);
-    }
-}
-
-static BOOL js_class_has_bytecode(JSClassID class_id)
-{
-    return (class_id == JS_CLASS_BYTECODE_FUNCTION ||
-            class_id == JS_CLASS_GENERATOR_FUNCTION ||
-            class_id == JS_CLASS_ASYNC_FUNCTION ||
-            class_id == JS_CLASS_ASYNC_GENERATOR_FUNCTION);
-}
-
-/* return NULL without exception if not a function or no bytecode */
-static JSFunctionBytecode *JS_GetFunctionBytecode(JSValueConst val)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
-        return NULL;
-    p = JS_VALUE_GET_OBJ(val);
-    if (!js_class_has_bytecode(p->class_id))
-        return NULL;
-    return p->u.func.function_bytecode;
-}
-
-static void js_method_set_home_object(JSContext *ctx, JSValueConst func_obj,
-                                      JSValueConst home_obj)
-{
-    JSObject *p, *p1;
-    JSFunctionBytecode *b;
-
-    if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)
-        return;
-    p = JS_VALUE_GET_OBJ(func_obj);
-    if (!js_class_has_bytecode(p->class_id))
-        return;
-    b = p->u.func.function_bytecode;
-    if (b->need_home_object) {
-        p1 = p->u.func.home_object;
-        if (p1) {
-            JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1));
-        }
-        if (JS_VALUE_GET_TAG(home_obj) == JS_TAG_OBJECT)
-            p1 = JS_VALUE_GET_OBJ(JS_DupValue(ctx, home_obj));
-        else
-            p1 = NULL;
-        p->u.func.home_object = p1;
-    }
-}
-
-static JSValue js_get_function_name(JSContext *ctx, JSAtom name)
-{
-    JSValue name_str;
-
-    name_str = JS_AtomToString(ctx, name);
-    if (JS_AtomSymbolHasDescription(ctx, name)) {
-        name_str = JS_ConcatString3(ctx, "[", name_str, "]");
-    }
-    return name_str;
-}
-
-/* Modify the name of a method according to the atom and
-   'flags'. 'flags' is a bitmask of JS_PROP_HAS_GET and
-   JS_PROP_HAS_SET. Also set the home object of the method.
-   Return < 0 if exception. */
-static int js_method_set_properties(JSContext *ctx, JSValueConst func_obj,
-                                    JSAtom name, int flags, JSValueConst home_obj)
-{
-    JSValue name_str;
-
-    name_str = js_get_function_name(ctx, name);
-    if (flags & JS_PROP_HAS_GET) {
-        name_str = JS_ConcatString3(ctx, "get ", name_str, "");
-    } else if (flags & JS_PROP_HAS_SET) {
-        name_str = JS_ConcatString3(ctx, "set ", name_str, "");
-    }
-    if (JS_IsException(name_str))
-        return -1;
-    if (JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_name, name_str,
-                               JS_PROP_CONFIGURABLE) < 0)
-        return -1;
-    js_method_set_home_object(ctx, func_obj, home_obj);
-    return 0;
-}
-
-/* Note: at least 'length' arguments will be readable in 'argv' */
-static JSValue JS_NewCFunction3(JSContext *ctx, JSCFunction *func,
-                                const char *name,
-                                int length, JSCFunctionEnum cproto, int magic,
-                                JSValueConst proto_val)
-{
-    JSValue func_obj, name_val;
-    JSObject *p;
-
-    func_obj = JS_NewObjectProtoClass(ctx, proto_val, JS_CLASS_C_FUNCTION);
-    if (JS_IsException(func_obj))
-        return func_obj;
-    p = JS_VALUE_GET_OBJ(func_obj);
-    p->u.cfunc.c_function.generic = func;
-    p->u.cfunc.length = length;
-    p->u.cfunc.cproto = cproto;
-    p->u.cfunc.magic = magic;
-    p->is_constructor = (cproto == JS_CFUNC_constructor ||
-                         cproto == JS_CFUNC_constructor_magic ||
-                         cproto == JS_CFUNC_constructor_or_func ||
-                         cproto == JS_CFUNC_constructor_or_func_magic);
-    if (name)
-        name_val = JS_NewAtomString(ctx, name);
-    else
-        name_val = JS_UNDEFINED;
-    js_function_set_properties(ctx, func_obj, name_val, length);
-    return func_obj;
-}
-
-/* Note: at least 'length' arguments will be readable in 'argv' */
-JSValue JS_NewCFunction2(JSContext *ctx, JSCFunction *func,
-                         const char *name,
-                         int length, JSCFunctionEnum cproto, int magic)
-{
-    return JS_NewCFunction3(ctx, func, name, length, cproto, magic,
-                            ctx->function_proto);
-}
-
-typedef struct JSCFunctionDataRecord {
-    JSCFunctionData *func;
-    uint8_t length;
-    uint8_t data_len;
-    uint16_t magic;
-    JSValue data[0];
-} JSCFunctionDataRecord;
-
-static void js_c_function_data_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSCFunctionDataRecord *s = JS_GetOpaque(val, JS_CLASS_C_FUNCTION_DATA);
-    int i;
-
-    if (s) {
-        for(i = 0; i < s->data_len; i++) {
-            JS_FreeValueRT(rt, s->data[i]);
-        }
-        js_free_rt(rt, s);
-    }
-}
-
-static void js_c_function_data_mark(JSRuntime *rt, JSValueConst val,
-                                    JS_MarkFunc *mark_func)
-{
-    JSCFunctionDataRecord *s = JS_GetOpaque(val, JS_CLASS_C_FUNCTION_DATA);
-    int i;
-
-    if (s) {
-        for(i = 0; i < s->data_len; i++) {
-            JS_MarkValue(rt, s->data[i], mark_func);
-        }
-    }
-}
-
-static JSValue js_c_function_data_call(JSContext *ctx, JSValueConst func_obj,
-                                       JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    JSCFunctionDataRecord *s = JS_GetOpaque(func_obj, JS_CLASS_C_FUNCTION_DATA);
-    JSValueConst *arg_buf;
-    int i;
-
-    /* XXX: could add the function on the stack for debug */
-    if (unlikely(argc < s->length)) {
-        arg_buf = alloca(sizeof(arg_buf[0]) * s->length);
-        for(i = 0; i < argc; i++)
-            arg_buf[i] = argv[i];
-        for(i = argc; i < s->length; i++)
-            arg_buf[i] = JS_UNDEFINED;
-    } else {
-        arg_buf = argv;
-    }
-
-    return s->func(ctx, this_val, argc, arg_buf, s->magic, s->data);
-}
-
-JSValue JS_NewCFunctionData(JSContext *ctx, JSCFunctionData *func,
-                            int length, int magic, int data_len,
-                            JSValueConst *data)
-{
-    JSCFunctionDataRecord *s;
-    JSValue func_obj;
-    int i;
-
-    func_obj = JS_NewObjectProtoClass(ctx, ctx->function_proto,
-                                      JS_CLASS_C_FUNCTION_DATA);
-    if (JS_IsException(func_obj))
-        return func_obj;
-    s = js_malloc(ctx, sizeof(*s) + data_len * sizeof(JSValue));
-    if (!s) {
-        JS_FreeValue(ctx, func_obj);
-        return JS_EXCEPTION;
-    }
-    s->func = func;
-    s->length = length;
-    s->data_len = data_len;
-    s->magic = magic;
-    for(i = 0; i < data_len; i++)
-        s->data[i] = JS_DupValue(ctx, data[i]);
-    JS_SetOpaque(func_obj, s);
-    js_function_set_properties(ctx, func_obj, JS_UNDEFINED, length);
-    return func_obj;
-}
-
-static void free_property(JSRuntime *rt, JSProperty *pr, int prop_flags)
-{
-    if (unlikely(prop_flags & JS_PROP_TMASK)) {
-        if ((prop_flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
-            if (pr->u.getset.getter)
-                JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter));
-            if (pr->u.getset.setter)
-                JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter));
-        } else if ((prop_flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
-            free_var_ref(rt, pr->u.var_ref);
-        } else if ((prop_flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
-            /* nothing to do */
-        }
-    } else {
-        JS_FreeValueRT(rt, pr->u.value);
-    }
-}
-
-static force_inline JSShapeProperty *find_own_property1(JSObject *p,
-                                                        JSAtom atom)
-{
-    JSShape *sh;
-    JSShapeProperty *pr, *prop;
-    intptr_t h;
-    sh = p->shape;
-    h = (uintptr_t)atom & sh->prop_hash_mask;
-    h = sh->prop_hash_end[-h - 1];
-    prop = get_shape_prop(sh);
-    while (h) {
-        pr = &prop[h - 1];
-        if (likely(pr->atom == atom)) {
-            return pr;
-        }
-        h = pr->hash_next;
-    }
-    return NULL;
-}
-
-static force_inline JSShapeProperty *find_own_property(JSProperty **ppr,
-                                                       JSObject *p,
-                                                       JSAtom atom)
-{
-    JSShape *sh;
-    JSShapeProperty *pr, *prop;
-    intptr_t h;
-    sh = p->shape;
-    h = (uintptr_t)atom & sh->prop_hash_mask;
-    h = sh->prop_hash_end[-h - 1];
-    prop = get_shape_prop(sh);
-    while (h) {
-        pr = &prop[h - 1];
-        if (likely(pr->atom == atom)) {
-            *ppr = &p->prop[h - 1];
-            /* the compiler should be able to assume that pr != NULL here */
-            return pr;
-        }
-        h = pr->hash_next;
-    }
-    *ppr = NULL;
-    return NULL;
-}
-
-/* indicate that the object may be part of a function prototype cycle */
-static void set_cycle_flag(JSContext *ctx, JSValueConst obj)
-{
-}
-
-static void free_var_ref(JSRuntime *rt, JSVarRef *var_ref)
-{
-    if (var_ref) {
-        assert(var_ref->header.ref_count > 0);
-        if (--var_ref->header.ref_count == 0) {
-            if (var_ref->link.prev != NULL) {
-                list_del(&var_ref->link); /* still on the stack */
-            } else {
-                JS_FreeValueRT(rt, var_ref->value);
-            }
-            js_free_rt(rt, var_ref);
-        }
-    }
-}
-
-static void js_array_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    int i;
-
-    for(i = 0; i < p->u.array.count; i++) {
-        JS_FreeValueRT(rt, p->u.array.u.values[i]);
-    }
-    js_free_rt(rt, p->u.array.u.values);
-}
-
-static void js_array_mark(JSRuntime *rt, JSValueConst val,
-                          JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    int i;
-
-    for(i = 0; i < p->u.array.count; i++) {
-        JS_MarkValue(rt, p->u.array.u.values[i], mark_func);
-    }
-}
-
-static void js_object_data_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JS_FreeValueRT(rt, p->u.object_data);
-    p->u.object_data = JS_UNDEFINED;
-}
-
-static void js_object_data_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JS_MarkValue(rt, p->u.object_data, mark_func);
-}
-
-static void js_bytecode_function_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p1, *p = JS_VALUE_GET_OBJ(val);
-    JSFunctionBytecode *b;
-    JSVarRef **var_refs;
-    int i;
-
-    p1 = p->u.func.home_object;
-    if (p1) {
-        JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, p1));
-    }
-    b = p->u.func.function_bytecode;
-    if (b) {
-        var_refs = p->u.func.var_refs;
-        if (var_refs) {
-            for(i = 0; i < b->closure_var_count; i++)
-                free_var_ref(rt, var_refs[i]);
-            js_free_rt(rt, var_refs);
-        }
-        JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b));
-    }
-}
-
-static void js_bytecode_function_mark(JSRuntime *rt, JSValueConst val,
-                                      JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSVarRef **var_refs = p->u.func.var_refs;
-    JSFunctionBytecode *b = p->u.func.function_bytecode;
-    int i;
-
-    if (p->u.func.home_object) {
-        JS_MarkValue(rt, JS_MKPTR(JS_TAG_OBJECT, p->u.func.home_object),
-                     mark_func);
-    }
-    if (b) {
-        if (var_refs) {
-            for(i = 0; i < b->closure_var_count; i++) {
-                JSVarRef *var_ref = var_refs[i];
-                if (var_ref) {
-                    JS_MarkValue(rt, JS_MKPTR(JS_TAG_VAR_REF, var_ref),
-                                 mark_func);
-                }
-            }
-        }
-        /* must mark the function bytecode because template objects may be
-           part of a cycle */
-        JS_MarkValue(rt, JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b), mark_func);
-    }
-}
-
-static void js_bound_function_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSBoundFunction *bf = p->u.bound_function;
-    int i;
-
-    JS_FreeValueRT(rt, bf->func_obj);
-    JS_FreeValueRT(rt, bf->this_val);
-    for(i = 0; i < bf->argc; i++) {
-        JS_FreeValueRT(rt, bf->argv[i]);
-    }
-    js_free_rt(rt, bf);
-}
-
-static void js_bound_function_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSBoundFunction *bf = p->u.bound_function;
-    int i;
-
-    JS_MarkValue(rt, bf->func_obj, mark_func);
-    JS_MarkValue(rt, bf->this_val, mark_func);
-    for(i = 0; i < bf->argc; i++)
-        JS_MarkValue(rt, bf->argv[i], mark_func);
-}
-
-static void js_for_in_iterator_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSForInIterator *it = p->u.for_in_iterator;
-    JS_FreeValueRT(rt, it->obj);
-    js_free_rt(rt, it);
-}
-
-static void js_for_in_iterator_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSForInIterator *it = p->u.for_in_iterator;
-    JS_MarkValue(rt, it->obj, mark_func);
-}
-
-static void free_object_struct(JSRuntime *rt, JSObject *p)
-{
-    int i;
-    JSClassFinalizer *finalizer;
-    JSShape *sh;
-    JSShapeProperty *pr;
-
-    /* free all the fields */
-    sh = p->shape;
-    pr = get_shape_prop(sh);
-    for(i = 0; i < sh->prop_count; i++) {
-        free_property(rt, &p->prop[i], pr->flags);
-        pr++;
-    }
-    js_free_rt(rt, p->prop);
-    js_free_shape(rt, sh);
-
-    /* fail safe */
-    p->shape = NULL;
-    p->prop = NULL;
-
-    if (unlikely(p->first_weak_ref)) {
-        reset_weak_ref(rt, p);
-    }
-
-    finalizer = rt->class_array[p->class_id].finalizer;
-    if (finalizer)
-        (*finalizer)(rt, JS_MKPTR(JS_TAG_OBJECT, p));
-
-    /* fail safe */
-    p->class_id = 0;
-    p->u.opaque = NULL;
-    p->u.func.var_refs = NULL;
-    p->u.func.home_object = NULL;
-}
-
-static void free_object2(JSRuntime *rt, JSObject *p)
-{
-    if (p->free_mark) {
-        /* already freed (happen when freeing cycles) */
-        return;
-    }
-    /* indicate that the object is being freed */
-    p->free_mark = 1;
-
-    free_object_struct(rt, p);
-
-    /* remove from the global object list */
-    list_del(&p->link);
-    if (rt->in_gc_sweep) {
-        list_add_tail(&p->link, &rt->free_obj_list);
-    } else {
-        js_free_rt(rt, p);
-    }
-}
-
-static void free_object(JSRuntime *rt, JSObject *p)
-{
-    assert(p->header.ref_count == 0);
-    if (!rt->in_gc_sweep)
-        free_object2(rt, p);
-}
-
-/* called with the ref_count of 'v' reaches zero. */
-void __JS_FreeValueRT(JSRuntime *rt, JSValue v)
-{
-    uint32_t tag = JS_VALUE_GET_TAG(v);
-
-#ifdef DUMP_FREE
-    {
-        printf("Freeing ");
-        if (tag == JS_TAG_OBJECT) {
-            JS_DumpObject(rt, JS_VALUE_GET_OBJ(v));
-        } else {
-            JS_DumpValueShort(rt, v);
-            printf("\n");
-        }
-    }
-#endif
-
-    switch(tag) {
-    case JS_TAG_STRING:
-        {
-            JSString *p = JS_VALUE_GET_STRING(v);
-            if (p->atom_type) {
-                JS_FreeAtomStruct(rt, p);
-            } else {
-#ifdef DUMP_LEAKS
-                list_del(&p->link);
-#endif
-                js_free_rt(rt, p);
-            }
-        }
-        break;
-    case JS_TAG_OBJECT:
-        free_object(rt, JS_VALUE_GET_OBJ(v));
-        break;
-    case JS_TAG_FUNCTION_BYTECODE:
-        free_function_bytecode(rt, JS_VALUE_GET_PTR(v));
-        break;
-    case JS_TAG_SHAPE:
-    case JS_TAG_ASYNC_FUNCTION:
-    case JS_TAG_VAR_REF:
-    case JS_TAG_MODULE:
-        abort(); /* never freed here */
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-    case JS_TAG_BIG_FLOAT:
-        {
-            JSBigFloat *bf = JS_VALUE_GET_PTR(v);
-            bf_delete(&bf->num);
-            js_free_rt(rt, bf);
-        }
-        break;
-#endif
-    case JS_TAG_SYMBOL:
-        {
-            JSAtomStruct *p = JS_VALUE_GET_PTR(v);
-            JS_FreeAtomStruct(rt, p);
-        }
-        break;
-    default:
-        printf("__JS_FreeValue: unknown tag=%d\n", tag);
-        abort();
-    }
-}
-
-void __JS_FreeValue(JSContext *ctx, JSValue v)
-{
-    __JS_FreeValueRT(ctx->rt, v);
-}
-
-/* garbage collection */
-
-static BOOL has_children(JSValueConst val)
-{
-    switch(JS_VALUE_GET_TAG(val)) {
-    case JS_TAG_VAR_REF:
-    case JS_TAG_OBJECT:
-    case JS_TAG_FUNCTION_BYTECODE:
-    case JS_TAG_ASYNC_FUNCTION:
-    case JS_TAG_SHAPE:
-        return TRUE;
-    default:
-        return FALSE;
-    }
-}
-
-void JS_MarkValue(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func)
-{
-    if (JS_VALUE_HAS_REF_COUNT(val) && has_children(val)) {
-        mark_func(rt, val);
-    }
-}
-
-static void mark_children(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func)
-{
-    switch(JS_VALUE_GET_TAG(val)) {
-    case JS_TAG_OBJECT:
-        {
-            JSObject *p = JS_VALUE_GET_OBJ(val);
-            JSShapeProperty *prs;
-            JSShape *sh;
-            int i;
-            sh = p->shape;
-            mark_func(rt, JS_MKPTR(JS_TAG_SHAPE, sh));
-            /* mark all the fields */
-            prs = get_shape_prop(sh);
-            for(i = 0; i < sh->prop_count; i++) {
-                JSProperty *pr = &p->prop[i];
-                if (prs->atom != JS_ATOM_NULL) {
-                    if (prs->flags & JS_PROP_TMASK) {
-                        if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
-                            if (pr->u.getset.getter)
-                                mark_func(rt, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter));
-                            if (pr->u.getset.setter)
-                                mark_func(rt, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter));
-                        } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
-                            JS_MarkValue(rt, JS_MKPTR(JS_TAG_VAR_REF, pr->u.var_ref), mark_func);
-                        } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
-                            /* nothing to do */
-                        }
-                    } else {
-                        JS_MarkValue(rt, pr->u.value, mark_func);
-                    }
-                }
-                prs++;
-            }
-
-            if (p->class_id != JS_CLASS_OBJECT) {
-                JSClassGCMark *gc_mark;
-                gc_mark = rt->class_array[p->class_id].gc_mark;
-                if (gc_mark)
-                    gc_mark(rt, JS_MKPTR(JS_TAG_OBJECT, p), mark_func);
-            }
-        }
-        break;
-    case JS_TAG_FUNCTION_BYTECODE:
-        /* the template objects can be part of a cycle */
-        {
-            JSFunctionBytecode *b = JS_VALUE_GET_PTR(val);
-            int i;
-            for(i = 0; i < b->cpool_count; i++) {
-                JS_MarkValue(rt, b->cpool[i], mark_func);
-            }
-        }
-        break;
-    case JS_TAG_VAR_REF:
-        {
-            JSVarRef *var_ref = JS_VALUE_GET_PTR(val);
-            /* the refcount of stack values is not incremented, hence
-               the test */
-            if (var_ref->link.prev == NULL) {
-                JS_MarkValue(rt, *var_ref->pvalue, mark_func);
-            }
-        }
-        break;
-    case JS_TAG_ASYNC_FUNCTION:
-        {
-            JSAsyncFunctionData *s = JS_VALUE_GET_PTR(val);
-            if (s->is_active)
-                async_func_mark(rt, &s->func_state, mark_func);
-            JS_MarkValue(rt, s->resolving_funcs[0], mark_func);
-            JS_MarkValue(rt, s->resolving_funcs[1], mark_func);
-        }
-        break;
-    case JS_TAG_SHAPE:
-        {
-            JSShape *sh = JS_VALUE_GET_PTR(val);
-            if (sh->proto != NULL) {
-                mark_func(rt, JS_MKPTR(JS_TAG_OBJECT, sh->proto));
-            }
-        }
-        break;
-    default:
-        /* no children */
-        break;
-    }
-}
-
-#if 0
-/* not useful until realms are supported */
-static void mark_context(JSRuntime *rt, JSContext *ctx)
-{
-    int i;
-    struct list_head *el;
-
-    list_for_each(el, &ctx->loaded_modules) {
-        JSModuleDef *m = list_entry(el, JSModuleDef, link);
-        JS_MarkValue(rt, m->module_ns);
-        JS_MarkValue(rt, m->func_obj);
-    }
-
-    JS_MarkValue(rt, ctx->current_exception);
-
-    for(i = 0; i < rt->class_count; i++)
-        JS_MarkValue(rt, ctx->class_proto[i]);
-    JS_MarkValue(rt, ctx->regexp_ctor);
-    JS_MarkValue(rt, ctx->function_ctor);
-    JS_MarkValue(rt, ctx->function_proto);
-    JS_MarkValue(rt, ctx->iterator_proto);
-    JS_MarkValue(rt, ctx->async_iterator_proto);
-    JS_MarkValue(rt, ctx->array_proto_values);
-
-    for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++)
-        JS_MarkValue(rt, ctx->native_error_proto[i]);
-
-    JS_MarkValue(rt, ctx->throw_type_error);
-    JS_MarkValue(rt, ctx->global_obj);
-    JS_MarkValue(rt, ctx->global_var_obj);
-}
-#endif
-
-/* 1 = possible member of a cycle
-   2 = member of a cycle
-*/
-
-static void gc_decref_mark(JSRuntime *rt, JSValueConst obj);
-
-//#define DUMP_GC_DECREF
-
-#ifdef DUMP_GC_DECREF
-static int decref_indent;
-#endif
-
-static void gc_decref_child(JSRuntime *rt, JSValueConst obj)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(obj);
-
-#ifdef DUMP_LEAKS
-#ifdef DUMP_GC_DECREF
-    {
-        int i;
-        for(i = 0; i < decref_indent; i++)
-                printf("  ");
-        if (JS_IsObject(obj)) {
-            JS_DumpObject(rt, p);
-        } else {
-            JS_DumpValueShort(rt, obj); printf("\n");
-        }
-    }
-#endif
-    if (p->header.ref_count <= 0) {
-        printf("%p: invalid refcount (%d)\n", p, p->header.ref_count);
-        if (JS_IsObject(obj)) {
-            JS_DumpObject(rt, p);
-        } else {
-            JS_DumpValueShort(rt, obj);
-        }
-    }
-#endif
-    assert(p->header.ref_count > 0);
-    p->header.ref_count--;
-    gc_decref_mark(rt, obj);
-}
-
-static void gc_decref_mark(JSRuntime *rt, JSValueConst obj)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(obj);
-    if (p->gc_header.mark == 0) {
-        p->gc_header.mark = 1;
-#ifdef DUMP_GC_DECREF
-        decref_indent++;
-#endif
-        mark_children(rt, obj, gc_decref_child);
-#ifdef DUMP_GC_DECREF
-        decref_indent--;
-#endif
-    }
-}
-
-static void gc_decref(JSRuntime *rt)
-{
-    struct list_head *el;
-    JSObject *p;
-
-    list_for_each(el, &rt->obj_list) {
-        p = list_entry(el, JSObject, link);
-        gc_decref_mark(rt, JS_MKPTR(JS_TAG_OBJECT, p));
-    }
-}
-
-static void gc_scan_incref(JSRuntime *rt, JSValueConst obj);
-
-static void gc_scan_incref_child(JSRuntime *rt, JSValueConst obj)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(obj);
-    p->header.ref_count++;
-    if (p->gc_header.mark != 0) {
-        gc_scan_incref(rt, obj);
-    }
-}
-
-static void gc_scan_incref(JSRuntime *rt, JSValueConst obj)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(obj);
-    p->gc_header.mark = 0; /* not freed */
-    if (JS_IsObject(obj)) {
-        /* remove the tmp_obj_list and update the next object to
-           explore */
-        if (rt->el_next == &p->link)
-            rt->el_next = rt->el_next->next;
-        /* add to rt->obj_list */
-        list_del(&p->link);
-        list_add_tail(&p->link, &rt->obj_list);
-    }
-    mark_children(rt, obj, gc_scan_incref_child);
-}
-
-static void gc_scan_obj(JSRuntime *rt, JSValueConst obj)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(obj);
-    if (p->gc_header.mark == 1) {
-        if (p->header.ref_count > 0) {
-            gc_scan_incref(rt, obj);
-        } else {
-            p->gc_header.mark = 2;
-            mark_children(rt, obj, gc_scan_obj);
-        }
-    }
-}
-
-static void gc_scan_obj2(JSRuntime *rt, JSValueConst obj);
-
-static void gc_scan_incref_child2(JSRuntime *rt, JSValueConst obj)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(obj);
-    p->header.ref_count++;
-    gc_scan_obj2(rt, obj);
-}
-
-static void gc_scan_obj2(JSRuntime *rt, JSValueConst obj)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(obj);
-    if (p->gc_header.mark == 2) {
-        p->gc_header.mark = 3;
-        mark_children(rt, obj, gc_scan_incref_child2);
-    }
-}
-
-static void gc_scan(JSRuntime *rt)
-{
-    struct list_head *el;
-    JSObject *p;
-
-    /* move obj_list to tmp_obj_list */
-    list_add(&rt->tmp_obj_list, &rt->obj_list);
-    list_del(&rt->obj_list);
-    init_list_head(&rt->obj_list);
-
-    /* keep the objects with a refcount > 0 and their children. After
-       this pass, obj_list contains the objects to be deleted. Their
-       mark is 2. */
-    for(el = rt->tmp_obj_list.next; el != &rt->tmp_obj_list;
-        el = rt->el_next) {
-        rt->el_next = el->next; /* may be modified by gc_scan_obj() */
-        p = list_entry(el, JSObject, link);
-        gc_scan_obj(rt, JS_MKPTR(JS_TAG_OBJECT, p));
-    }
-
-    /* restore the refcount of the objects to be deleted. After this
-       pass, their mark is 3 */
-    list_for_each(el, &rt->tmp_obj_list) {
-        p = list_entry(el, JSObject, link);
-        gc_scan_obj2(rt, JS_MKPTR(JS_TAG_OBJECT, p));
-    }
-}
-
-static void gc_free_cycles(JSRuntime *rt)
-{
-    struct list_head *el, *el1;
-    JSObject *p;
-#ifdef DUMP_GC_FREE
-    BOOL header_done = FALSE;
-#endif
-    init_list_head(&rt->free_obj_list);
-    rt->in_gc_sweep = TRUE;
-    list_for_each_safe(el, el1, &rt->tmp_obj_list) {
-        p = list_entry(el, JSObject, link);
-        assert(p->gc_header.mark == 3);
-#ifdef DUMP_GC_FREE
-        if (!header_done) {
-            printf("Freeing cycles:\n");
-            JS_DumpObjectHeader(rt);
-            header_done = TRUE;
-        }
-        JS_DumpObject(rt, p);
-#endif
-        free_object2(rt, p);
-    }
-    rt->in_gc_sweep = FALSE;
-
-    /* free all the object structures */
-    list_for_each_safe(el, el1, &rt->free_obj_list) {
-        p = list_entry(el, JSObject, link);
-        js_free_rt(rt, p);
-    }
-}
-
-void JS_RunGC(JSRuntime *rt)
-{
-    /* decrement the reference of the children of each object. mark =
-       1 after this pass. */
-    gc_decref(rt);
-
-    /* keep objects with a non zero refcount and their childs */
-    gc_scan(rt);
-
-    /* free the objects with a zero refcount */
-    gc_free_cycles(rt);
-}
-
-/* Return false if not an object or if the object has already been
-   freed (zombie objects are visible in finalizers when freeing
-   cycles). */
-BOOL JS_IsLiveObject(JSRuntime *rt, JSValueConst obj)
-{
-    JSObject *p;
-    if (!JS_IsObject(obj))
-        return FALSE;
-    p = JS_VALUE_GET_OBJ(obj);
-    return !p->free_mark;
-}
-
-/* Return true during the GC sweep phase (can be useful inside in finalizer) */
-BOOL JS_IsInGCSweep(JSRuntime *rt)
-{
-    return rt->in_gc_sweep;
-}
-
-/* Compute memory used by various object types */
-/* XXX: poor man's approach to handling multiply referenced objects */
-typedef struct JSMemoryUsage_helper {
-    double memory_used_count;
-    double str_count;
-    double str_size;
-    double js_func_count;
-    double js_func_size;
-    double js_func_code_size;
-    double js_func_pc2line_count;
-    double js_func_pc2line_size;
-} JSMemoryUsage_helper;
-
-static void compute_value_size(JSValueConst val, JSMemoryUsage_helper *hp);
-
-static void compute_jsstring_size(JSString *str, JSMemoryUsage_helper *hp)
-{
-    if (!str->atom_type) {  /* atoms are handled separately */
-        double s_ref_count = str->header.ref_count;
-        hp->str_count += 1 / s_ref_count;
-        hp->str_size += ((sizeof(*str) + (str->len << str->is_wide_char) +
-                          1 - str->is_wide_char) / s_ref_count);
-    }
-}
-
-static void compute_bytecode_size(JSFunctionBytecode *b, JSMemoryUsage_helper *hp)
-{
-    int memory_used_count, js_func_size, i;
-    double ref_count = b->header.ref_count;
-
-    memory_used_count = 0;
-    js_func_size = offsetof(JSFunctionBytecode, debug);
-    if (b->vardefs) {
-        js_func_size += (b->arg_count + b->var_count) * sizeof(*b->vardefs);
-    }
-    if (b->cpool) {
-        js_func_size += b->cpool_count * sizeof(*b->cpool);
-        for (i = 0; i < b->cpool_count; i++) {
-            JSValueConst val = b->cpool[i];
-            compute_value_size(val, hp);
-        }
-    }
-    if (b->closure_var) {
-        js_func_size += b->closure_var_count * sizeof(*b->closure_var);
-    }
-    if (!b->read_only_bytecode && b->byte_code_buf) {
-        hp->js_func_code_size += b->byte_code_len / ref_count;
-    }
-    if (b->has_debug) {
-        js_func_size += sizeof(*b) - offsetof(JSFunctionBytecode, debug);
-        if (b->debug.source) {
-            memory_used_count++;
-            js_func_size += b->debug.source_len + 1;
-        }
-        if (b->debug.pc2line_len) {
-            memory_used_count++;
-            hp->js_func_pc2line_count += 1 / ref_count;
-            hp->js_func_pc2line_size += b->debug.pc2line_len / ref_count;
-        }
-    }
-    hp->js_func_size += js_func_size / ref_count;
-    hp->js_func_count += 1 / ref_count;
-    hp->memory_used_count += memory_used_count / ref_count;
-}
-
-static void compute_value_size(JSValueConst val, JSMemoryUsage_helper *hp)
-{
-    switch(JS_VALUE_GET_TAG(val)) {
-    case JS_TAG_STRING:
-        compute_jsstring_size(JS_VALUE_GET_STRING(val), hp);
-        break;
-    case JS_TAG_FUNCTION_BYTECODE:
-        compute_bytecode_size(JS_VALUE_GET_PTR(val), hp);
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-    case JS_TAG_BIG_FLOAT:
-        /* should track JSBigFloat usage */
-        break;
-#endif
-    }
-}
-
-void JS_ComputeMemoryUsage(JSRuntime *rt, JSMemoryUsage *s)
-{
-    struct list_head *el, *el1;
-    int i;
-    JSMemoryUsage_helper mem = { 0 }, *hp = &mem;
-
-    memset(s, 0, sizeof(*s));
-    s->malloc_count = rt->malloc_state.malloc_count;
-    s->malloc_size = rt->malloc_state.malloc_size;
-    s->malloc_limit = rt->malloc_state.malloc_limit;
-
-    s->memory_used_count = 2; /* rt + rt->class_array */
-    s->memory_used_size = sizeof(JSRuntime) + sizeof(JSValue) * rt->class_count;
-
-    list_for_each(el, &rt->context_list) {
-        JSContext *ctx = list_entry(el, JSContext, link);
-        JSShape *sh = ctx->array_shape;
-        s->memory_used_count += 2; /* ctx + ctx->class_proto */
-        s->memory_used_size += sizeof(JSContext) +
-            sizeof(JSValue) * rt->class_count;
-        s->binary_object_count += ctx->binary_object_count;
-        s->binary_object_size += ctx->binary_object_size;
-
-        /* the hashed shapes are counted separately */
-        if (sh && !sh->is_hashed) {
-            int hash_size = sh->prop_hash_mask + 1;
-            s->shape_count++;
-            s->shape_size += get_shape_size(hash_size, sh->prop_size);
-        }
-        list_for_each(el1, &ctx->loaded_modules) {
-            JSModuleDef *m = list_entry(el1, JSModuleDef, link);
-            s->memory_used_count += 1;
-            s->memory_used_size += sizeof(*m);
-            if (m->req_module_entries) {
-                s->memory_used_count += 1;
-                s->memory_used_size += m->req_module_entries_count * sizeof(*m->req_module_entries);
-            }
-            if (m->export_entries) {
-                s->memory_used_count += 1;
-                s->memory_used_size += m->export_entries_count * sizeof(*m->export_entries);
-                for (i = 0; i < m->export_entries_count; i++) {
-                    JSExportEntry *me = &m->export_entries[i];
-                    if (me->export_type == JS_EXPORT_TYPE_LOCAL && me->u.local.var_ref) {
-                        /* potential multiple count */
-                        s->memory_used_count += 1;
-                        compute_value_size(me->u.local.var_ref->value, hp);
-                    }
-                }
-            }
-            if (m->star_export_entries) {
-                s->memory_used_count += 1;
-                s->memory_used_size += m->star_export_entries_count * sizeof(*m->star_export_entries);
-            }
-            if (m->import_entries) {
-                s->memory_used_count += 1;
-                s->memory_used_size += m->import_entries_count * sizeof(*m->import_entries);
-            }
-            compute_value_size(m->module_ns, hp);
-            compute_value_size(m->func_obj, hp);
-        }
-    }
-
-    list_for_each(el, &rt->obj_list) {
-        JSObject *p = list_entry(el, JSObject, link);
-        JSShape *sh = p->shape;
-        JSShapeProperty *prs;
-        s->obj_count++;
-        if (p->prop) {
-            s->memory_used_count++;
-            s->prop_size += sh->prop_size * sizeof(*p->prop);
-            s->prop_count += sh->prop_count;
-            prs = get_shape_prop(sh);
-            for(i = 0; i < sh->prop_count; i++) {
-                JSProperty *pr = &p->prop[i];
-                if (prs->atom != JS_ATOM_NULL && !(prs->flags & JS_PROP_TMASK)) {
-                    compute_value_size(pr->u.value, hp);
-                }
-                prs++;
-            }
-        }
-        /* the hashed shapes are counted separately */
-        if (!sh->is_hashed) {
-            int hash_size = sh->prop_hash_mask + 1;
-            s->shape_count++;
-            s->shape_size += get_shape_size(hash_size, sh->prop_size);
-        }
-
-        switch(p->class_id) {
-        case JS_CLASS_ARRAY:             /* u.array | length */
-        case JS_CLASS_ARGUMENTS:         /* u.array | length */
-            s->array_count++;
-            if (p->fast_array) {
-                s->fast_array_count++;
-                if (p->u.array.u.values) {
-                    s->memory_used_count++;
-                    s->memory_used_size += p->u.array.count *
-                        sizeof(*p->u.array.u.values);
-                    s->fast_array_elements += p->u.array.count;
-                    for (i = 0; i < p->u.array.count; i++) {
-                        compute_value_size(p->u.array.u.values[i], hp);
-                    }
-                }
-            }
-            break;
-        case JS_CLASS_NUMBER:            /* u.object_data */
-        case JS_CLASS_STRING:            /* u.object_data */
-        case JS_CLASS_BOOLEAN:           /* u.object_data */
-        case JS_CLASS_SYMBOL:            /* u.object_data */
-        case JS_CLASS_DATE:              /* u.object_data */
-#ifdef CONFIG_BIGNUM
-        case JS_CLASS_BIG_INT:           /* u.object_data */
-        case JS_CLASS_BIG_FLOAT:         /* u.object_data */
-#endif
-            compute_value_size(p->u.object_data, hp);
-            break;
-        case JS_CLASS_C_FUNCTION:        /* u.cfunc */
-            s->c_func_count++;
-            break;
-        case JS_CLASS_BYTECODE_FUNCTION: /* u.func */
-            {
-                JSFunctionBytecode *b = p->u.func.function_bytecode;
-                JSVarRef **var_refs = p->u.func.var_refs;
-                /* home_object: object will be accounted for in list scan */
-                if (var_refs) {
-                    s->memory_used_count++;
-                    s->js_func_size += b->closure_var_count * sizeof(*var_refs);
-                    for (i = 0; i < b->closure_var_count; i++) {
-                        if (var_refs[i]) {
-                            double ref_count = var_refs[i]->header.ref_count;
-                            s->memory_used_count += 1 / ref_count;
-                            s->js_func_size += sizeof(*var_refs[i]) / ref_count;
-                            /* handle non object closed values */
-                            if (var_refs[i]->pvalue == &var_refs[i]->value) {
-                                /* potential multiple count */
-                                compute_value_size(var_refs[i]->value, hp);
-                            }
-                        }
-                    }
-                }
-                compute_bytecode_size(b, hp);
-            }
-            break;
-        case JS_CLASS_BOUND_FUNCTION:    /* u.bound_function */
-            {
-                JSBoundFunction *bf = p->u.bound_function;
-                /* func_obj and this_val are objects */
-                for (i = 0; i < bf->argc; i++) {
-                    compute_value_size(bf->argv[i], hp);
-                }
-                s->memory_used_count += 1;
-                s->memory_used_size += sizeof(*bf) + bf->argc * sizeof(*bf->argv);
-            }
-            break;
-        case JS_CLASS_C_FUNCTION_DATA:   /* u.c_function_data_record */
-            {
-                JSCFunctionDataRecord *fd = p->u.c_function_data_record;
-                if (fd) {
-                    for (i = 0; i < fd->data_len; i++) {
-                        compute_value_size(fd->data[i], hp);
-                    }
-                    s->memory_used_count += 1;
-                    s->memory_used_size += sizeof(*fd) + fd->data_len * sizeof(*fd->data);
-                }
-            }
-            break;
-        case JS_CLASS_REGEXP:            /* u.regexp */
-            compute_jsstring_size(p->u.regexp.pattern, hp);
-            compute_jsstring_size(p->u.regexp.bytecode, hp);
-            break;
-
-        case JS_CLASS_FOR_IN_ITERATOR:   /* u.for_in_iterator */
-            {
-                JSForInIterator *it = p->u.for_in_iterator;
-                if (it) {
-                    compute_value_size(it->obj, hp);
-                    s->memory_used_count += 1;
-                    s->memory_used_size += sizeof(*it);
-                }
-            }
-            break;
-        case JS_CLASS_ARRAY_BUFFER:      /* u.array_buffer */
-        case JS_CLASS_SHARED_ARRAY_BUFFER: /* u.array_buffer */
-            {
-                JSArrayBuffer *abuf = p->u.array_buffer;
-                if (abuf) {
-                    s->memory_used_count += 1;
-                    s->memory_used_size += sizeof(*abuf);
-                    if (abuf->data) {
-                        s->memory_used_count += 1;
-                        s->memory_used_size += abuf->byte_length;
-                    }
-                }
-            }
-            break;
-        case JS_CLASS_GENERATOR:         /* u.generator_data */
-        case JS_CLASS_UINT8C_ARRAY:      /* u.typed_array / u.array */
-        case JS_CLASS_INT8_ARRAY:        /* u.typed_array / u.array */
-        case JS_CLASS_UINT8_ARRAY:       /* u.typed_array / u.array */
-        case JS_CLASS_INT16_ARRAY:       /* u.typed_array / u.array */
-        case JS_CLASS_UINT16_ARRAY:      /* u.typed_array / u.array */
-        case JS_CLASS_INT32_ARRAY:       /* u.typed_array / u.array */
-        case JS_CLASS_UINT32_ARRAY:      /* u.typed_array / u.array */
-#ifdef CONFIG_BIGNUM
-        case JS_CLASS_BIG_INT64_ARRAY:   /* u.typed_array / u.array */
-        case JS_CLASS_BIG_UINT64_ARRAY:  /* u.typed_array / u.array */
-#endif
-        case JS_CLASS_FLOAT32_ARRAY:     /* u.typed_array / u.array */
-        case JS_CLASS_FLOAT64_ARRAY:     /* u.typed_array / u.array */
-        case JS_CLASS_DATAVIEW:          /* u.typed_array */
-#ifdef CONFIG_BIGNUM
-        case JS_CLASS_FLOAT_ENV:         /* u.float_env */
-#endif
-        case JS_CLASS_MAP:               /* u.map_state */
-        case JS_CLASS_SET:               /* u.map_state */
-        case JS_CLASS_WEAKMAP:           /* u.map_state */
-        case JS_CLASS_WEAKSET:           /* u.map_state */
-        case JS_CLASS_MAP_ITERATOR:      /* u.map_iterator_data */
-        case JS_CLASS_SET_ITERATOR:      /* u.map_iterator_data */
-        case JS_CLASS_ARRAY_ITERATOR:    /* u.array_iterator_data */
-        case JS_CLASS_STRING_ITERATOR:   /* u.array_iterator_data */
-        case JS_CLASS_PROXY:             /* u.proxy_data */
-        case JS_CLASS_PROMISE:           /* u.promise_data */
-        case JS_CLASS_PROMISE_RESOLVE_FUNCTION:  /* u.promise_function_data */
-        case JS_CLASS_PROMISE_REJECT_FUNCTION:   /* u.promise_function_data */
-        case JS_CLASS_ASYNC_FUNCTION_RESOLVE:    /* u.async_function_data */
-        case JS_CLASS_ASYNC_FUNCTION_REJECT:     /* u.async_function_data */
-        case JS_CLASS_ASYNC_FROM_SYNC_ITERATOR:  /* u.async_from_sync_iterator_data */
-        case JS_CLASS_ASYNC_GENERATOR:   /* u.async_generator_data */
-            /* TODO */
-        default:
-            /* XXX: class definition should have an opaque block size */
-            if (p->u.opaque) {
-                s->memory_used_count += 1;
-            }
-            break;
-        }
-    }
-    s->obj_size += s->obj_count * sizeof(JSObject);
-
-    /* hashed shapes */
-    s->memory_used_count++; /* rt->shape_hash */
-    s->memory_used_size += sizeof(rt->shape_hash[0]) * rt->shape_hash_size;
-    for(i = 0; i < rt->shape_hash_size; i++) {
-        JSShape *sh;
-        for(sh = rt->shape_hash[i]; sh != NULL; sh = sh->shape_hash_next) {
-            int hash_size = sh->prop_hash_mask + 1;
-            s->shape_count++;
-            s->shape_size += get_shape_size(hash_size, sh->prop_size);
-        }
-    }
-
-    /* atoms */
-    s->memory_used_count += 2; /* rt->atom_array, rt->atom_hash */
-    s->atom_count = rt->atom_count;
-    s->atom_size = sizeof(rt->atom_array[0]) * rt->atom_size +
-        sizeof(rt->atom_hash[0]) * rt->atom_hash_size;
-    for(i = 0; i < rt->atom_size; i++) {
-        JSAtomStruct *p = rt->atom_array[i];
-        if (!atom_is_free(p)) {
-            s->atom_size += (sizeof(*p) + (p->len << p->is_wide_char) +
-                             1 - p->is_wide_char);
-        }
-    }
-    s->str_count = round(mem.str_count);
-    s->str_size = round(mem.str_size);
-    s->js_func_count = round(mem.js_func_count);
-    s->js_func_size = round(mem.js_func_size);
-    s->js_func_code_size = round(mem.js_func_code_size);
-    s->js_func_pc2line_count = round(mem.js_func_pc2line_count);
-    s->js_func_pc2line_size = round(mem.js_func_pc2line_size);
-    s->memory_used_count += round(mem.memory_used_count) +
-        s->atom_count + s->str_count +
-        s->obj_count + s->shape_count +
-        s->js_func_count + s->js_func_pc2line_count;
-    s->memory_used_size += s->atom_size + s->str_size +
-        s->obj_size + s->prop_size + s->shape_size +
-        s->js_func_size + s->js_func_code_size + s->js_func_pc2line_size;
-}
-
-void JS_DumpMemoryUsage(FILE *fp, const JSMemoryUsage *s, JSRuntime *rt)
-{
-    fprintf(fp, "QuickJS memory usage -- "
-#ifdef CONFIG_BIGNUM
-            "BigNum "
-#endif
-            CONFIG_VERSION " version, %d-bit, malloc limit: %"PRId64"\n\n",
-            (int)sizeof(void *) * 8, (int64_t)(ssize_t)s->malloc_limit);
-#if 1
-    if (rt) {
-        static const struct {
-            const char *name;
-            size_t size;
-        } object_types[] = {
-            { "JSRuntime", sizeof(JSRuntime) },
-            { "JSContext", sizeof(JSContext) },
-            { "JSObject", sizeof(JSObject) },
-            { "JSString", sizeof(JSString) },
-            { "JSFunctionBytecode", sizeof(JSFunctionBytecode) },
-        };
-        int i, usage_size_ok = 0;
-        for(i = 0; i < countof(object_types); i++) {
-            unsigned int size = object_types[i].size;
-            void *p = js_malloc_rt(rt, size);
-            if (p) {
-                unsigned int size1 = js_malloc_usable_size_rt(rt, p);
-                if (size1 >= size) {
-                    usage_size_ok = 1;
-                    fprintf(fp, "  %3u + %-2u  %s\n",
-                            size, size1 - size, object_types[i].name);
-                }
-                js_free_rt(rt, p);
-            }
-        }
-        if (!usage_size_ok) {
-            fprintf(fp, "  malloc_usable_size unavailable\n");
-        }
-        {
-            int obj_classes[JS_CLASS_INIT_COUNT + 1] = { 0 };
-            int class_id;
-            struct list_head *el;
-            list_for_each(el, &rt->obj_list) {
-                JSObject *p = list_entry(el, JSObject, link);
-                obj_classes[min_uint32(p->class_id, JS_CLASS_INIT_COUNT)]++;
-            }
-            fprintf(fp, "\n" "JSObject classes\n");
-            if (obj_classes[0])
-                fprintf(fp, "  %5d  %2.0d %s\n", obj_classes[0], 0, "none");
-            for (class_id = 1; class_id < JS_CLASS_INIT_COUNT; class_id++) {
-                if (obj_classes[class_id]) {
-                    char buf[ATOM_GET_STR_BUF_SIZE];
-                    fprintf(fp, "  %5d  %2.0d %s\n", obj_classes[class_id], class_id,
-                            JS_AtomGetStrRT(rt, buf, sizeof(buf), js_std_class_def[class_id - 1].class_name));
-                }
-            }
-            if (obj_classes[JS_CLASS_INIT_COUNT])
-                fprintf(fp, "  %5d  %2.0d %s\n", obj_classes[JS_CLASS_INIT_COUNT], 0, "other");
-        }
-        fprintf(fp, "\n");
-    }
-#endif
-    fprintf(fp, "%-20s %8s %8s\n", "NAME", "COUNT", "SIZE");
-
-    if (s->malloc_count) {
-        fprintf(fp, "%-20s %8"PRId64" %8"PRId64"  (%0.1f per block)\n",
-                "memory allocated", s->malloc_count, s->malloc_size,
-                (double)s->malloc_size / s->malloc_count);
-        fprintf(fp, "%-20s %8"PRId64" %8"PRId64"  (%d overhead, %0.1f average slack)\n",
-                "memory used", s->memory_used_count, s->memory_used_size,
-                MALLOC_OVERHEAD, ((double)(s->malloc_size - s->memory_used_size) /
-                                  s->memory_used_count));
-    }
-    if (s->atom_count) {
-        fprintf(fp, "%-20s %8"PRId64" %8"PRId64"  (%0.1f per atom)\n",
-                "atoms", s->atom_count, s->atom_size,
-                (double)s->atom_size / s->atom_count);
-    }
-    if (s->str_count) {
-        fprintf(fp, "%-20s %8"PRId64" %8"PRId64"  (%0.1f per string)\n",
-                "strings", s->str_count, s->str_size,
-                (double)s->str_size / s->str_count);
-    }
-    if (s->obj_count) {
-        fprintf(fp, "%-20s %8"PRId64" %8"PRId64"  (%0.1f per object)\n",
-                "objects", s->obj_count, s->obj_size,
-                (double)s->obj_size / s->obj_count);
-        fprintf(fp, "%-20s %8"PRId64" %8"PRId64"  (%0.1f per object)\n",
-                "  properties", s->prop_count, s->prop_size,
-                (double)s->prop_count / s->obj_count);
-        fprintf(fp, "%-20s %8"PRId64" %8"PRId64"  (%0.1f per shape)\n",
-                "  shapes", s->shape_count, s->shape_size,
-                (double)s->shape_size / s->shape_count);
-    }
-    if (s->js_func_count) {
-        fprintf(fp, "%-20s %8"PRId64" %8"PRId64"\n",
-                "bytecode functions", s->js_func_count, s->js_func_size);
-        fprintf(fp, "%-20s %8"PRId64" %8"PRId64"  (%0.1f per function)\n",
-                "  bytecode", s->js_func_count, s->js_func_code_size,
-                (double)s->js_func_code_size / s->js_func_count);
-        if (s->js_func_pc2line_count) {
-            fprintf(fp, "%-20s %8"PRId64" %8"PRId64"  (%0.1f per function)\n",
-                    "  pc2line", s->js_func_pc2line_count,
-                    s->js_func_pc2line_size,
-                    (double)s->js_func_pc2line_size / s->js_func_pc2line_count);
-        }
-    }
-    if (s->c_func_count) {
-        fprintf(fp, "%-20s %8"PRId64"\n", "C functions", s->c_func_count);
-    }
-    if (s->array_count) {
-        fprintf(fp, "%-20s %8"PRId64"\n", "arrays", s->array_count);
-        if (s->fast_array_count) {
-            fprintf(fp, "%-20s %8"PRId64"\n", "  fast arrays", s->fast_array_count);
-            fprintf(fp, "%-20s %8"PRId64" %8"PRId64"  (%0.1f per fast array)\n",
-                    "  elements", s->fast_array_elements,
-                    s->fast_array_elements * (int)sizeof(JSValue),
-                    (double)s->fast_array_elements / s->fast_array_count);
-        }
-    }
-    if (s->binary_object_count) {
-        fprintf(fp, "%-20s %8"PRId64" %8"PRId64"\n",
-                "binary objects", s->binary_object_count, s->binary_object_size);
-    }
-}
-
-JSValue JS_GetGlobalObject(JSContext *ctx)
-{
-    return JS_DupValue(ctx, ctx->global_obj);
-}
-
-/* WARNING: obj is freed */
-JSValue JS_Throw(JSContext *ctx, JSValue obj)
-{
-    JS_FreeValue(ctx, ctx->current_exception);
-    ctx->current_exception = obj;
-    ctx->exception_needs_backtrace = JS_IsError(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-/* return the pending exception (cannot be called twice). */
-JSValue JS_GetException(JSContext *ctx)
-{
-    JSValue val;
-    val = ctx->current_exception;
-    ctx->current_exception = JS_NULL;
-    ctx->exception_needs_backtrace = FALSE;
-    return val;
-}
-
-static void dbuf_put_leb128(DynBuf *s, uint32_t v)
-{
-    uint32_t a;
-    for(;;) {
-        a = v & 0x7f;
-        v >>= 7;
-        if (v != 0) {
-            dbuf_putc(s, a | 0x80);
-        } else {
-            dbuf_putc(s, a);
-            break;
-        }
-    }
-}
-
-static void dbuf_put_sleb128(DynBuf *s, int32_t v1)
-{
-    uint32_t v = v1;
-    dbuf_put_leb128(s, (2 * v) ^ -(v >> 31));
-}
-
-static int get_leb128(uint32_t *pval, const uint8_t *buf,
-                      const uint8_t *buf_end)
-{
-    const uint8_t *ptr = buf;
-    uint32_t v, a, i;
-    v = 0;
-    for(i = 0; i < 5; i++) {
-        if (unlikely(ptr >= buf_end))
-            break;
-        a = *ptr++;
-        v |= (a & 0x7f) << (i * 7);
-        if (!(a & 0x80)) {
-            *pval = v;
-            return ptr - buf;
-        }
-    }
-    *pval = 0;
-    return -1;
-}
-
-static int get_sleb128(int32_t *pval, const uint8_t *buf,
-                       const uint8_t *buf_end)
-{
-    int ret;
-    uint32_t val;
-    ret = get_leb128(&val, buf, buf_end);
-    if (ret < 0) {
-        *pval = 0;
-        return -1;
-    }
-    *pval = (val >> 1) ^ -(val & 1);
-    return ret;
-}
-
-static int find_line_num(JSContext *ctx, JSFunctionBytecode *b,
-                         uint32_t pc_value)
-{
-    const uint8_t *p_end, *p;
-    int new_line_num, line_num, pc, v, ret;
-    unsigned int op;
-
-    if (!b->has_debug || !b->debug.pc2line_buf) {
-        /* function was stripped */
-        return -1;
-    }
-
-    p = b->debug.pc2line_buf;
-    p_end = p + b->debug.pc2line_len;
-    pc = 0;
-    line_num = b->debug.line_num;
-    while (p < p_end) {
-        op = *p++;
-        if (op == 0) {
-            uint32_t val;
-            ret = get_leb128(&val, p, p_end);
-            if (ret < 0)
-                goto fail;
-            pc += val;
-            p += ret;
-            ret = get_sleb128(&v, p, p_end);
-            if (ret < 0) {
-            fail:
-                /* should never happen */
-                return b->debug.line_num;
-            }
-            p += ret;
-            new_line_num = line_num + v;
-        } else {
-            op -= PC2LINE_OP_FIRST;
-            pc += (op / PC2LINE_RANGE);
-            new_line_num = line_num + (op % PC2LINE_RANGE) + PC2LINE_BASE;
-        }
-        if (pc_value < pc)
-            return line_num;
-        line_num = new_line_num;
-    }
-    return line_num;
-}
-
-/* in order to avoid executing arbitrary code during the stack trace
-   generation, we only look at simple 'name' properties containing a
-   string. */
-static const char *get_func_name(JSContext *ctx, JSValueConst func)
-{
-    JSProperty *pr;
-    JSShapeProperty *prs;
-    JSValueConst val;
-    
-    if (JS_VALUE_GET_TAG(func) != JS_TAG_OBJECT)
-        return NULL;
-    prs = find_own_property(&pr, JS_VALUE_GET_OBJ(func), JS_ATOM_name);
-    if (!prs)
-        return NULL;
-    if ((prs->flags & JS_PROP_TMASK) != JS_PROP_NORMAL)
-        return NULL;
-    val = pr->u.value;
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_STRING)
-        return NULL;
-    return JS_ToCString(ctx, val);
-}
-
-/* if filename != NULL, an additional level is added with the filename
-   and line number information (used for parse error). If 'pc' !=
-   NULL, it is used as the cur_pc value for the current stack frame */
-static void build_backtrace(JSContext *ctx, JSValueConst error_obj,
-                            const char *filename, int line_num,
-                            const uint8_t *cur_pc)
-{
-    JSStackFrame *sf;
-    JSValue str;
-    DynBuf dbuf;
-    const char *func_name_str;
-    const char *str1;
-    JSObject *p;
-
-    ctx->exception_needs_backtrace = FALSE;
-    js_dbuf_init(ctx, &dbuf);
-    if (filename) {
-        dbuf_printf(&dbuf, "    at %s", filename);
-        if (line_num != -1)
-            dbuf_printf(&dbuf, ":%d", line_num);
-        dbuf_putc(&dbuf, '\n');
-        str = JS_NewString(ctx, filename);
-        JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_fileName, str,
-                               JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-        JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_lineNumber, JS_NewInt32(ctx, line_num),
-                               JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-    }
-    for(sf = ctx->current_stack_frame; sf != NULL; sf = sf->prev_frame) {
-        func_name_str = get_func_name(ctx, sf->cur_func);
-        if (!func_name_str || func_name_str[0] == '\0')
-            str1 = "<anonymous>";
-        else
-            str1 = func_name_str;
-        dbuf_printf(&dbuf, "    at %s", str1);
-        JS_FreeCString(ctx, func_name_str);
-
-        p = JS_VALUE_GET_OBJ(sf->cur_func);
-        if (js_class_has_bytecode(p->class_id)) {
-            JSFunctionBytecode *b;
-            char atom_buf[ATOM_GET_STR_BUF_SIZE];
-            int line_num1;
-
-            b = p->u.func.function_bytecode;
-            if (b->has_debug) {
-                if (sf == ctx->current_stack_frame) {
-                    if (!cur_pc) {
-                        line_num1 = b->debug.line_num;
-                    } else {
-                        line_num1 = find_line_num(ctx, b,
-                                                  cur_pc - b->byte_code_buf - 1);
-                    }
-                } else {
-                    line_num1 = find_line_num(ctx, b,
-                                              sf->cur_pc - b->byte_code_buf - 1);
-                }
-                dbuf_printf(&dbuf, " (%s",
-                            JS_AtomGetStr(ctx, atom_buf, sizeof(atom_buf),
-                                          b->debug.filename));
-                if (line_num1 != -1)
-                    dbuf_printf(&dbuf, ":%d", line_num1);
-                dbuf_putc(&dbuf, ')');
-            }
-        } else {
-            dbuf_printf(&dbuf, " (native)");
-        }
-        dbuf_putc(&dbuf, '\n');
-    }
-    dbuf_putc(&dbuf, '\0');
-    str = JS_NewString(ctx, (char *)dbuf.buf);
-    dbuf_free(&dbuf);
-    JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_stack, str,
-                           JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-}
-
-JSValue JS_NewError(JSContext *ctx)
-{
-    return JS_NewObjectClass(ctx, JS_CLASS_ERROR);
-}
-
-static JSValue JS_ThrowError(JSContext *ctx, JSErrorEnum error_num,
-                             const char *fmt, va_list ap)
-{
-    char buf[256];
-    JSValue obj, ret;
-
-    vsnprintf(buf, sizeof(buf), fmt, ap);
-    obj = JS_NewObjectProtoClass(ctx, ctx->native_error_proto[error_num],
-                                 JS_CLASS_ERROR);
-    if (unlikely(JS_IsException(obj))) {
-        /* out of memory: throw JS_NULL to avoid recursing */
-        obj = JS_NULL;
-    } else {
-        JS_DefinePropertyValue(ctx, obj, JS_ATOM_message,
-                               JS_NewString(ctx, buf),
-                               JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-    }
-    ret = JS_Throw(ctx, obj);
-    return ret;
-}
-
-JSValue __attribute__((format(printf, 2, 3))) JS_ThrowSyntaxError(JSContext *ctx, const char *fmt, ...)
-{
-    JSValue val;
-    va_list ap;
-
-    va_start(ap, fmt);
-    val = JS_ThrowError(ctx, JS_SYNTAX_ERROR, fmt, ap);
-    va_end(ap);
-    return val;
-}
-
-JSValue __attribute__((format(printf, 2, 3))) JS_ThrowTypeError(JSContext *ctx, const char *fmt, ...)
-{
-    JSValue val;
-    va_list ap;
-
-    va_start(ap, fmt);
-    val = JS_ThrowError(ctx, JS_TYPE_ERROR, fmt, ap);
-    va_end(ap);
-    return val;
-}
-
-static int __attribute__((format(printf, 3, 4))) JS_ThrowTypeErrorOrFalse(JSContext *ctx, int flags, const char *fmt, ...)
-{
-    va_list ap;
-
-    if ((flags & JS_PROP_THROW) ||
-        ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) {
-        va_start(ap, fmt);
-        JS_ThrowError(ctx, JS_TYPE_ERROR, fmt, ap);
-        va_end(ap);
-        return -1;
-    } else {
-        return FALSE;
-    }
-}
-
-static int JS_ThrowTypeErrorReadOnly(JSContext *ctx, int flags, JSAtom atom)
-{
-    if ((flags & JS_PROP_THROW) ||
-        ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) {
-        char buf[ATOM_GET_STR_BUF_SIZE];
-        JS_ThrowTypeError(ctx, "%s is read-only",
-                          JS_AtomGetStr(ctx, buf, sizeof(buf), atom));
-        return -1;
-    } else {
-        return FALSE;
-    }
-}
-
-JSValue __attribute__((format(printf, 2, 3))) JS_ThrowReferenceError(JSContext *ctx, const char *fmt, ...)
-{
-    JSValue val;
-    va_list ap;
-
-    va_start(ap, fmt);
-    val = JS_ThrowError(ctx, JS_REFERENCE_ERROR, fmt, ap);
-    va_end(ap);
-    return val;
-}
-
-JSValue __attribute__((format(printf, 2, 3))) JS_ThrowRangeError(JSContext *ctx, const char *fmt, ...)
-{
-    JSValue val;
-    va_list ap;
-
-    va_start(ap, fmt);
-    val = JS_ThrowError(ctx, JS_RANGE_ERROR, fmt, ap);
-    va_end(ap);
-    return val;
-}
-
-JSValue __attribute__((format(printf, 2, 3))) JS_ThrowInternalError(JSContext *ctx, const char *fmt, ...)
-{
-    JSValue val;
-    va_list ap;
-
-    va_start(ap, fmt);
-    val = JS_ThrowError(ctx, JS_INTERNAL_ERROR, fmt, ap);
-    va_end(ap);
-    return val;
-}
-
-JSValue JS_ThrowOutOfMemory(JSContext *ctx)
-{
-    if (!ctx->in_out_of_memory) {
-        ctx->in_out_of_memory = TRUE;
-        JS_ThrowInternalError(ctx, "out of memory");
-        ctx->in_out_of_memory = FALSE;
-    }
-    return JS_EXCEPTION;
-}
-
-static JSValue JS_ThrowStackOverflow(JSContext *ctx)
-{
-    return JS_ThrowInternalError(ctx, "stack overflow");
-}
-
-static JSValue JS_ThrowTypeErrorNotAnObject(JSContext *ctx)
-{
-    return JS_ThrowTypeError(ctx, "not an object");
-}
-
-static JSValue JS_ThrowTypeErrorNotASymbol(JSContext *ctx)
-{
-    return JS_ThrowTypeError(ctx, "not a symbol");
-}
-
-static JSValue JS_ThrowReferenceErrorNotDefined(JSContext *ctx, JSAtom name)
-{
-    char buf[ATOM_GET_STR_BUF_SIZE];
-    return JS_ThrowReferenceError(ctx, "%s is not defined",
-                                  JS_AtomGetStr(ctx, buf, sizeof(buf), name));
-}
-
-static JSValue JS_ThrowReferenceErrorUninitialized(JSContext *ctx, JSAtom name)
-{
-    char buf[ATOM_GET_STR_BUF_SIZE];
-    return JS_ThrowReferenceError(ctx, "%s is not initialized",
-                                  name == JS_ATOM_NULL ? "lexical variable" :
-                                  JS_AtomGetStr(ctx, buf, sizeof(buf), name));
-}
-
-static JSValue JS_ThrowTypeErrorInvalidClass(JSContext *ctx, int class_id)
-{
-    JSRuntime *rt = ctx->rt;
-    char buf[ATOM_GET_STR_BUF_SIZE];
-    JSAtom name;
-    name = rt->class_array[class_id].class_name;
-    return JS_ThrowTypeError(ctx, "%s object expected",
-                             JS_AtomGetStr(ctx, buf, sizeof(buf), name));
-}
-
-/* return -1 (exception) or TRUE/FALSE */
-static int JS_SetPrototypeInternal(JSContext *ctx, JSValueConst obj,
-                                   JSValueConst proto_val,
-                                   BOOL throw_flag)
-{
-    JSObject *proto, *p, *p1;
-    JSShape *sh;
-
-    if (throw_flag) {
-        if (JS_VALUE_GET_TAG(obj) == JS_TAG_NULL ||
-            JS_VALUE_GET_TAG(obj) == JS_TAG_UNDEFINED)
-            goto not_obj;
-    } else {
-        if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
-            goto not_obj;
-    }
-    p = JS_VALUE_GET_OBJ(obj);
-    if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_OBJECT) {
-        if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_NULL) {
-        not_obj:
-            JS_ThrowTypeErrorNotAnObject(ctx);
-            return -1;
-        }
-        proto = NULL;
-    } else {
-        proto = JS_VALUE_GET_OBJ(proto_val);
-    }
-
-    if (throw_flag && JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
-        return TRUE;
-
-    if (unlikely(p->class_id == JS_CLASS_PROXY))
-        return js_proxy_setPrototypeOf(ctx, obj, proto_val, throw_flag);
-    sh = p->shape;
-    if (sh->proto == proto)
-        return TRUE;
-    if (!p->extensible) {
-        if (throw_flag) {
-            JS_ThrowTypeError(ctx, "object is not extensible");
-            return -1;
-        } else {
-            return FALSE;
-        }
-    }
-    if (proto) {
-        /* check if there is a cycle */
-        p1 = proto;
-        do {
-            if (p1 == p) {
-                if (throw_flag) {
-                    JS_ThrowTypeError(ctx, "circular prototype chain");
-                    return -1;
-                } else {
-                    return FALSE;
-                }
-            }
-            /* Note: for Proxy objects, proto is NULL */
-            p1 = p1->shape->proto;
-        } while (p1 != NULL);
-        JS_DupValue(ctx, proto_val);
-    }
-
-    if (js_shape_prepare_update(ctx, p, NULL))
-        return -1;
-    sh = p->shape;
-    if (sh->proto)
-        JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, sh->proto));
-    sh->proto = proto;
-    return TRUE;
-}
-
-/* return -1 (exception) or TRUE/FALSE */
-int JS_SetPrototype(JSContext *ctx, JSValueConst obj, JSValueConst proto_val)
-{
-    return JS_SetPrototypeInternal(ctx, obj, proto_val, TRUE);
-}
-
-/* Return an Object, JS_NULL or JS_EXCEPTION in case of Proxy object. */
-JSValueConst JS_GetPrototype(JSContext *ctx, JSValueConst val)
-{
-    JSObject *p;
-
-    switch(JS_VALUE_GET_NORM_TAG(val)) {
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-        val = ctx->class_proto[JS_CLASS_BIG_INT];
-        break;
-    case JS_TAG_INT:
-        if (is_bignum_mode(ctx)) {
-            val = ctx->class_proto[JS_CLASS_BIG_INT];
-        } else {
-            val = ctx->class_proto[JS_CLASS_NUMBER];
-        }
-        break;
-    case JS_TAG_FLOAT64:
-        val = ctx->class_proto[JS_CLASS_NUMBER];
-        break;
-    case JS_TAG_BIG_FLOAT:
-        val = ctx->class_proto[JS_CLASS_BIG_FLOAT];
-        break;
-#else
-    case JS_TAG_INT:
-    case JS_TAG_FLOAT64:
-        val = ctx->class_proto[JS_CLASS_NUMBER];
-        break;
-#endif
-    case JS_TAG_BOOL:
-        val = ctx->class_proto[JS_CLASS_BOOLEAN];
-        break;
-    case JS_TAG_STRING:
-        val = ctx->class_proto[JS_CLASS_STRING];
-        break;
-    case JS_TAG_SYMBOL:
-        val = ctx->class_proto[JS_CLASS_SYMBOL];
-        break;
-    case JS_TAG_OBJECT:
-        p = JS_VALUE_GET_OBJ(val);
-        if (unlikely(p->class_id == JS_CLASS_PROXY)) {
-            val = js_proxy_getPrototypeOf(ctx, val);
-        } else {
-            p = p->shape->proto;
-            if (!p)
-                val = JS_NULL;
-            else
-                val = JS_MKPTR(JS_TAG_OBJECT, p);
-        }
-        break;
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-    default:
-        val = JS_NULL;
-        break;
-    }
-    return val;
-}
-
-/* return TRUE, FALSE or (-1) in case of exception */
-static int JS_OrdinaryIsInstanceOf(JSContext *ctx, JSValueConst val,
-                                   JSValueConst obj)
-{
-    JSValue obj_proto;
-    JSObject *proto;
-    const JSObject *p, *proto1;
-    BOOL ret;
-
-    if (!JS_IsFunction(ctx, obj))
-        return FALSE;
-    p = JS_VALUE_GET_OBJ(obj);
-    if (p->class_id == JS_CLASS_BOUND_FUNCTION) {
-        JSBoundFunction *s = p->u.bound_function;
-        return JS_IsInstanceOf(ctx, val, s->func_obj);
-    }
-
-    /* Only explicitly boxed values are instances of constructors */
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
-        return FALSE;
-    ret = FALSE;
-    obj_proto = JS_GetProperty(ctx, obj, JS_ATOM_prototype);
-    if (JS_VALUE_GET_TAG(obj_proto) != JS_TAG_OBJECT) {
-        if (!JS_IsException(obj_proto))
-            JS_ThrowTypeError(ctx, "operand 'prototype' property is not an object");
-        ret = -1;
-        goto done;
-    }
-    proto = JS_VALUE_GET_OBJ(obj_proto);
-    p = JS_VALUE_GET_OBJ(val);
-    for(;;) {
-        proto1 = p->shape->proto;
-        if (!proto1) {
-            if (p->class_id == JS_CLASS_PROXY) {
-                JSValueConst proto_val;
-                proto_val = JS_GetPrototype(ctx, JS_MKPTR(JS_TAG_OBJECT, (JSObject *)p));
-                if (JS_IsException(proto_val)) {
-                    ret = -1;
-                    goto done;
-                }
-                proto1 = JS_VALUE_GET_OBJ(proto_val);
-                if (!proto1)
-                    break;
-            } else {
-                break;
-            }
-        }
-        p = proto1;
-        if (proto == p) {
-            ret = TRUE;
-            break;
-        }
-    }
-done:
-    JS_FreeValue(ctx, obj_proto);
-    return ret;
-}
-
-/* return TRUE, FALSE or (-1) in case of exception */
-int JS_IsInstanceOf(JSContext *ctx, JSValueConst val, JSValueConst obj)
-{
-    JSValue method;
-
-    if (!JS_IsObject(obj))
-        goto fail;
-    method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_hasInstance);
-    if (JS_IsException(method))
-        return -1;
-    if (!JS_IsNull(method) && !JS_IsUndefined(method)) {
-        JSValue ret;
-        ret = JS_CallFree(ctx, method, obj, 1, &val);
-        return JS_ToBoolFree(ctx, ret);
-    }
-
-    /* legacy case */
-    if (!JS_IsFunction(ctx, obj)) {
-    fail:
-        JS_ThrowTypeError(ctx, "invalid 'instanceof' right operand");
-        return -1;
-    }
-    return JS_OrdinaryIsInstanceOf(ctx, val, obj);
-}
-
-static int JS_AutoInitProperty(JSContext *ctx, JSObject *p, JSAtom prop, JSProperty *pr)
-{
-    return (*pr->u.init.init_func)(ctx, p, prop, pr->u.init.opaque);
-}
-
-JSValue JS_GetPropertyInternal(JSContext *ctx, JSValueConst obj,
-                               JSAtom prop, JSValueConst this_obj,
-                               BOOL throw_ref_error)
-{
-    JSObject *p;
-    JSProperty *pr;
-    JSShapeProperty *prs;
-    uint32_t tag;
-
-    tag = JS_VALUE_GET_TAG(obj);
-    if (unlikely(tag != JS_TAG_OBJECT)) {
-        switch(tag) {
-        case JS_TAG_NULL:
-        case JS_TAG_UNDEFINED:
-            return JS_ThrowTypeError(ctx, "value has no property");
-        case JS_TAG_EXCEPTION:
-            return JS_EXCEPTION;
-        case JS_TAG_STRING:
-            {
-                JSString *p1 = JS_VALUE_GET_STRING(obj);
-                if (__JS_AtomIsTaggedInt(prop)) {
-                    uint32_t idx, ch;
-                    idx = __JS_AtomToUInt32(prop);
-                    if (idx < p1->len) {
-                        if (p1->is_wide_char)
-                            ch = p1->u.str16[idx];
-                        else
-                            ch = p1->u.str8[idx];
-                        return js_new_string_char(ctx, ch);
-                    }
-                } else if (prop == JS_ATOM_length) {
-                    return JS_NewInt32(ctx, p1->len);
-                }
-            }
-            break;
-        default:
-            break;
-        }
-        /* cannot raise an exception */
-        p = JS_VALUE_GET_OBJ(JS_GetPrototype(ctx, obj));
-        if (!p)
-            return JS_UNDEFINED;
-    } else {
-        p = JS_VALUE_GET_OBJ(obj);
-    }
-
-    for(;;) {
-        prs = find_own_property(&pr, p, prop);
-        if (prs) {
-            /* found */
-            if (unlikely(prs->flags & JS_PROP_TMASK)) {
-                if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
-                    if (unlikely(!pr->u.getset.getter)) {
-                        return JS_UNDEFINED;
-                    } else {
-                        JSValue func = JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter);
-                        /* Note: the field could be removed in the getter */
-                        func = JS_DupValue(ctx, func);
-                        return JS_CallFree(ctx, func, this_obj, 0, NULL);
-                    }
-                } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
-                    JSValue val = *pr->u.var_ref->pvalue;
-                    if (unlikely(JS_IsUninitialized(val)))
-                        return JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
-                    return JS_DupValue(ctx, val);
-                } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
-                    /* Instantiate property and retry */
-                    if (JS_AutoInitProperty(ctx, p, prop, pr))
-                        return JS_EXCEPTION;
-                    continue;
-                }
-            } else {
-                return JS_DupValue(ctx, pr->u.value);
-            }
-        }
-        if (unlikely(p->is_exotic)) {
-            /* exotic behaviors */
-            if (p->fast_array) {
-                if (__JS_AtomIsTaggedInt(prop)) {
-                    uint32_t idx = __JS_AtomToUInt32(prop);
-                    if (idx < p->u.array.count) {
-                        /* we avoid duplicating the code */
-                        return JS_GetPropertyUint32(ctx, JS_MKPTR(JS_TAG_OBJECT, p), idx);
-                    } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-                               p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
-                        goto typed_array_oob;
-                    }
-                } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-                           p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
-                    int ret;
-                    ret = JS_AtomIsNumericIndex(ctx, prop);
-                    if (ret != 0) {
-                        if (ret < 0)
-                            return JS_EXCEPTION;
-                    typed_array_oob:
-                        if (typed_array_is_detached(ctx, p))
-                            return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-                        return JS_UNDEFINED;
-                    }
-                }
-            } else {
-                const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
-                if (em) {
-                    if (em->get_property) {
-                        /* XXX: should pass throw_ref_error */
-                        return em->get_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p),
-                                                prop, this_obj);
-                    }
-                    if (em->get_own_property) {
-                        JSPropertyDescriptor desc;
-                        int ret;
-
-                        ret = em->get_own_property(ctx, &desc, JS_MKPTR(JS_TAG_OBJECT, p), prop);
-                        if (ret < 0)
-                            return JS_EXCEPTION;
-                        if (ret) {
-                            if (desc.flags & JS_PROP_GETSET) {
-                                JS_FreeValue(ctx, desc.setter);
-                                return JS_CallFree(ctx, desc.getter, this_obj, 0, NULL);
-                            } else {
-                                return desc.value;
-                            }
-                        }
-                    }
-                }
-            }
-        }
-        p = p->shape->proto;
-        if (!p)
-            break;
-    }
-    if (unlikely(throw_ref_error)) {
-        return JS_ThrowReferenceErrorNotDefined(ctx, prop);
-    } else {
-        return JS_UNDEFINED;
-    }
-}
-
-static JSValue JS_ThrowTypeErrorPrivateNotFound(JSContext *ctx, JSAtom atom)
-{
-    char buf[ATOM_GET_STR_BUF_SIZE];
-    return JS_ThrowTypeError(ctx, "private class field %s does not exist",
-                      JS_AtomGetStr(ctx, buf, sizeof(buf), atom));
-}
-
-/* Private fields can be added even on non extensible objects or
-   Proxies */
-static int JS_DefinePrivateField(JSContext *ctx, JSValueConst obj,
-                                 JSValueConst name, JSValue val)
-{
-    JSObject *p;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-    JSAtom prop;
-
-    if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) {
-        JS_ThrowTypeErrorNotAnObject(ctx);
-        goto fail;
-    }
-    /* safety check */
-    if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL)) {
-        JS_ThrowTypeErrorNotASymbol(ctx);
-        goto fail;
-    }
-    prop = js_symbol_to_atom(ctx, (JSValue)name);
-    p = JS_VALUE_GET_OBJ(obj);
-    prs = find_own_property(&pr, p, prop);
-    if (prs) {
-        char buf[ATOM_GET_STR_BUF_SIZE];
-        JS_ThrowTypeError(ctx, "private class field %s already exists",
-                          JS_AtomGetStr(ctx, buf, sizeof(buf), prop));
-        goto fail;
-    }
-    pr = add_property(ctx, p, prop, JS_PROP_C_W_E);
-    if (unlikely(!pr)) {
-    fail:
-        JS_FreeValue(ctx, val);
-        return -1;
-    }
-    pr->u.value = val;
-    return 0;
-}
-
-static JSValue JS_GetPrivateField(JSContext *ctx, JSValueConst obj,
-                                  JSValueConst name)
-{
-    JSObject *p;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-    JSAtom prop;
-
-    if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    /* safety check */
-    if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL))
-        return JS_ThrowTypeErrorNotASymbol(ctx);
-    prop = js_symbol_to_atom(ctx, (JSValue)name);
-    p = JS_VALUE_GET_OBJ(obj);
-    prs = find_own_property(&pr, p, prop);
-    if (!prs) {
-        JS_ThrowTypeErrorPrivateNotFound(ctx, prop);
-        return JS_EXCEPTION;
-    }
-    return JS_DupValue(ctx, pr->u.value);
-}
-
-static int JS_SetPrivateField(JSContext *ctx, JSValueConst obj,
-                              JSValueConst name, JSValue val)
-{
-    JSObject *p;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-    JSAtom prop;
-
-    if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) {
-        JS_ThrowTypeErrorNotAnObject(ctx);
-        goto fail;
-    }
-    /* safety check */
-    if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL)) {
-        JS_ThrowTypeErrorNotASymbol(ctx);
-        goto fail;
-    }
-    prop = js_symbol_to_atom(ctx, (JSValue)name);
-    p = JS_VALUE_GET_OBJ(obj);
-    prs = find_own_property(&pr, p, prop);
-    if (!prs) {
-        JS_ThrowTypeErrorPrivateNotFound(ctx, prop);
-    fail:
-        JS_FreeValue(ctx, val);
-        return -1;
-    }
-    set_value(ctx, &pr->u.value, val);
-    return 0;
-}
-
-static int JS_AddBrand(JSContext *ctx, JSValueConst obj, JSValueConst home_obj)
-{
-    JSObject *p, *p1;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-    JSValue brand;
-    JSAtom brand_atom;
-    
-    if (unlikely(JS_VALUE_GET_TAG(home_obj) != JS_TAG_OBJECT)) {
-        JS_ThrowTypeErrorNotAnObject(ctx);
-        return -1;
-    }
-    p = JS_VALUE_GET_OBJ(home_obj);
-    prs = find_own_property(&pr, p, JS_ATOM_Private_brand);
-    if (!prs) {
-        brand = JS_NewSymbolFromAtom(ctx, JS_ATOM_brand, JS_ATOM_TYPE_PRIVATE);
-        if (JS_IsException(brand))
-            return -1;
-        /* if the brand is not present, add it */
-        pr = add_property(ctx, p, JS_ATOM_Private_brand, JS_PROP_C_W_E);
-        if (!pr) {
-            JS_FreeValue(ctx, brand);
-            return -1;
-        }
-        pr->u.value = JS_DupValue(ctx, brand);
-    } else {
-        brand = JS_DupValue(ctx, pr->u.value);
-    }
-    brand_atom = js_symbol_to_atom(ctx, brand);
-    
-    if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) {
-        JS_ThrowTypeErrorNotAnObject(ctx);
-        JS_FreeAtom(ctx, brand_atom);
-        return -1;
-    }
-    p1 = JS_VALUE_GET_OBJ(obj);
-    pr = add_property(ctx, p1, brand_atom, JS_PROP_C_W_E);
-    JS_FreeAtom(ctx, brand_atom);
-    if (!pr)
-        return -1;
-    pr->u.value = JS_UNDEFINED;
-    return 0;
-}
-
-static int JS_CheckBrand(JSContext *ctx, JSValueConst obj, JSValueConst func)
-{
-    JSObject *p, *p1, *home_obj;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-    JSValueConst brand;
-    
-    /* get the home object of 'func' */
-    if (unlikely(JS_VALUE_GET_TAG(func) != JS_TAG_OBJECT)) {
-    not_obj:
-        JS_ThrowTypeErrorNotAnObject(ctx);
-        return -1;
-    }
-    p1 = JS_VALUE_GET_OBJ(func);
-    if (!js_class_has_bytecode(p1->class_id))
-        goto not_obj;
-    home_obj = p1->u.func.home_object;
-    if (!home_obj)
-        goto not_obj;
-    prs = find_own_property(&pr, home_obj, JS_ATOM_Private_brand);
-    if (!prs) {
-        JS_ThrowTypeError(ctx, "expecting <brand> private field");
-        return -1;
-    }
-    brand = pr->u.value;
-    /* safety check */
-    if (unlikely(JS_VALUE_GET_TAG(brand) != JS_TAG_SYMBOL))
-        goto not_obj;
-    
-    /* get the brand array of 'obj' */
-    if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT))
-        goto not_obj;
-    p = JS_VALUE_GET_OBJ(obj);
-    prs = find_own_property(&pr, p, js_symbol_to_atom(ctx, (JSValue)brand));
-    if (!prs) {
-        JS_ThrowTypeError(ctx, "invalid brand on object");
-        return -1;
-    }
-    return 0;
-}
-
-static int num_keys_cmp(const void *p1, const void *p2, void *opaque)
-{
-    JSContext *ctx = opaque;
-    JSAtom atom1 = ((const JSPropertyEnum *)p1)->atom;
-    JSAtom atom2 = ((const JSPropertyEnum *)p2)->atom;
-    uint32_t v1, v2;
-    BOOL atom1_is_integer, atom2_is_integer;
-
-    atom1_is_integer = JS_AtomIsArrayIndex(ctx, &v1, atom1);
-    atom2_is_integer = JS_AtomIsArrayIndex(ctx, &v2, atom2);
-    assert(atom1_is_integer && atom2_is_integer);
-    if (v1 < v2)
-        return -1;
-    else if (v1 == v2)
-        return 0;
-    else
-        return 1;
-}
-
-static void js_free_prop_enum(JSContext *ctx, JSPropertyEnum *tab, uint32_t len)
-{
-    uint32_t i;
-    if (tab) {
-        for(i = 0; i < len; i++)
-            JS_FreeAtom(ctx, tab[i].atom);
-        js_free(ctx, tab);
-    }
-}
-
-/* return < 0 in case if exception, 0 if OK. ptab and its atoms must
-   be freed by the user. */
-static int __exception JS_GetOwnPropertyNamesInternal(JSContext *ctx,
-                                                      JSPropertyEnum **ptab,
-                                                      uint32_t *plen,
-                                                      JSObject *p, int flags)
-{
-    int i, j;
-    JSShape *sh;
-    JSShapeProperty *prs;
-    JSPropertyEnum *tab_atom, *tab_exotic;
-    JSAtom atom;
-    uint32_t num_keys_count, str_keys_count, sym_keys_count, atom_count;
-    uint32_t num_index, str_index, sym_index, exotic_count;
-    BOOL is_enumerable, num_sorted;
-    uint32_t num_key;
-    JSAtomKindEnum kind;
-    
-    /* clear pointer for consistency in case of failure */
-    *ptab = NULL;
-    *plen = 0;
-
-    /* compute the number of returned properties */
-    num_keys_count = 0;
-    str_keys_count = 0;
-    sym_keys_count = 0;
-    exotic_count = 0;
-    tab_exotic = NULL;
-    sh = p->shape;
-    for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) {
-        atom = prs->atom;
-        if (atom != JS_ATOM_NULL) {
-            is_enumerable = ((prs->flags & JS_PROP_ENUMERABLE) != 0);
-            kind = JS_AtomGetKind(ctx, atom);
-            if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) &&
-                ((flags >> kind) & 1) != 0) {
-                /* need to raise an exception in case of the module
-                   name space (implicit GetOwnProperty) */
-                if (unlikely((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) &&
-                    (flags & (JS_GPN_SET_ENUM | JS_GPN_ENUM_ONLY))) {
-                    JSVarRef *var_ref = p->prop[i].u.var_ref;
-                    if (unlikely(JS_IsUninitialized(*var_ref->pvalue))) {
-                        JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
-                        return -1;
-                    }
-                }
-                if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) {
-                    num_keys_count++;
-                } else if (kind == JS_ATOM_KIND_STRING) {
-                    str_keys_count++;
-                } else {
-                    sym_keys_count++;
-                }
-            }
-        }
-    }
-
-    if (p->is_exotic) {
-        if (p->fast_array) {
-            /* the implicit GetOwnProperty raises an exception if the
-               typed array is detached */
-            if ((flags & (JS_GPN_SET_ENUM | JS_GPN_ENUM_ONLY)) &&
-                 (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-                  p->class_id <= JS_CLASS_FLOAT64_ARRAY) &&
-                 typed_array_is_detached(ctx, p) &&
-                typed_array_get_length(ctx, p) != 0) {
-                JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-                return -1;
-            }
-            num_keys_count += p->u.array.count;
-        } else {
-            const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
-            if (em && em->get_own_property_names) {
-                if (em->get_own_property_names(ctx, &tab_exotic, &exotic_count,
-                                               JS_MKPTR(JS_TAG_OBJECT, p)))
-                    return -1;
-                for(i = 0; i < exotic_count; i++) {
-                    atom = tab_exotic[i].atom;
-                    kind = JS_AtomGetKind(ctx, atom);
-                    if (((flags >> kind) & 1) != 0) {
-                        is_enumerable = FALSE;
-                        if (flags & (JS_GPN_SET_ENUM | JS_GPN_ENUM_ONLY)) {
-                            JSPropertyDescriptor desc;
-                            int res;
-                            /* set the "is_enumerable" field if necessary */
-                            res = JS_GetOwnPropertyInternal(ctx, &desc, p, atom);
-                            if (res < 0) {
-                                js_free_prop_enum(ctx, tab_exotic, exotic_count);
-                                return -1;
-                            }
-                            if (res) {
-                                is_enumerable =
-                                    ((desc.flags & JS_PROP_ENUMERABLE) != 0);
-                                js_free_desc(ctx, &desc);
-                            }
-                            tab_exotic[i].is_enumerable = is_enumerable;
-                        }
-                        if (!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) {
-                            if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) {
-                                num_keys_count++;
-                            } else if (kind == JS_ATOM_KIND_STRING) {
-                                str_keys_count++;
-                            } else {
-                                sym_keys_count++;
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    /* fill them */
-
-    atom_count = num_keys_count + str_keys_count + sym_keys_count;
-    /* avoid allocating 0 bytes */
-    tab_atom = js_malloc(ctx, sizeof(tab_atom[0]) * max_int(atom_count, 1));
-    if (!tab_atom) {
-        js_free_prop_enum(ctx, tab_exotic, exotic_count);
-        return -1;
-    }
-
-    num_index = 0;
-    str_index = num_keys_count;
-    sym_index = str_index + str_keys_count;
-
-    num_sorted = TRUE;
-    sh = p->shape;
-    for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) {
-        atom = prs->atom;
-        if (atom != JS_ATOM_NULL) {
-            is_enumerable = ((prs->flags & JS_PROP_ENUMERABLE) != 0);
-            kind = JS_AtomGetKind(ctx, atom);
-            if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) &&
-                ((flags >> kind) & 1) != 0) {
-                if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) {
-                    j = num_index++;
-                    num_sorted = FALSE;
-                } else if (kind == JS_ATOM_KIND_STRING) {
-                    j = str_index++;
-                } else {
-                    j = sym_index++;
-                }
-                tab_atom[j].atom = JS_DupAtom(ctx, atom);
-                tab_atom[j].is_enumerable = is_enumerable;
-            }
-        }
-    }
-
-    if (p->is_exotic) {
-        if (p->fast_array) {
-            for(i = 0; i < p->u.array.count; i++) {
-                tab_atom[num_index].atom = __JS_AtomFromUInt32(i);
-                if (tab_atom[num_index].atom == JS_ATOM_NULL) {
-                    js_free_prop_enum(ctx, tab_exotic, exotic_count);
-                    js_free_prop_enum(ctx, tab_atom, num_index);
-                    return -1;
-                }
-                tab_atom[num_index].is_enumerable = TRUE;
-                num_index++;
-            }
-        }
-        if (exotic_count > 0) {
-            for(i = 0; i < exotic_count; i++) {
-                atom = tab_exotic[i].atom;
-                is_enumerable = tab_exotic[i].is_enumerable;
-                kind = JS_AtomGetKind(ctx, atom);
-                if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) &&
-                    ((flags >> kind) & 1) != 0) {
-                    if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) {
-                        j = num_index++;
-                        num_sorted = FALSE;
-                    } else if (kind == JS_ATOM_KIND_STRING) {
-                        j = str_index++;
-                    } else {
-                        j = sym_index++;
-                    }
-                    tab_atom[j].atom = atom;
-                    tab_atom[j].is_enumerable = is_enumerable;
-                } else {
-                    JS_FreeAtom(ctx, atom);
-                }
-            }
-        }
-        js_free(ctx, tab_exotic);
-    }
-
-    assert(num_index == num_keys_count);
-    assert(str_index == num_keys_count + str_keys_count);
-    assert(sym_index == atom_count);
-
-    if (num_keys_count != 0 && !num_sorted) {
-        rqsort(tab_atom, num_keys_count, sizeof(tab_atom[0]), num_keys_cmp,
-               ctx);
-    }
-    *ptab = tab_atom;
-    *plen = atom_count;
-    return 0;
-}
-
-int JS_GetOwnPropertyNames(JSContext *ctx, JSPropertyEnum **ptab,
-                           uint32_t *plen, JSValueConst obj, int flags)
-{
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) {
-        JS_ThrowTypeErrorNotAnObject(ctx);
-        return -1;
-    }
-    return JS_GetOwnPropertyNamesInternal(ctx, ptab, plen,
-                                          JS_VALUE_GET_OBJ(obj), flags);
-}
-
-/* Return -1 if exception,
-   FALSE if the property does not exist, TRUE if it exists. If TRUE is
-   returned, the property descriptor 'desc' is filled present. */
-static int JS_GetOwnPropertyInternal(JSContext *ctx, JSPropertyDescriptor *desc,
-                                     JSObject *p, JSAtom prop)
-{
-    JSShapeProperty *prs;
-    JSProperty *pr;
-
-retry:
-    prs = find_own_property(&pr, p, prop);
-    if (prs) {
-        if (desc) {
-            desc->flags = prs->flags & JS_PROP_C_W_E;
-            desc->getter = JS_UNDEFINED;
-            desc->setter = JS_UNDEFINED;
-            desc->value = JS_UNDEFINED;
-            if (unlikely(prs->flags & JS_PROP_TMASK)) {
-                if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
-                    desc->flags |= JS_PROP_GETSET;
-                    if (pr->u.getset.getter)
-                        desc->getter = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter));
-                    if (pr->u.getset.setter)
-                        desc->setter = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter));
-                } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
-                    JSValue val = *pr->u.var_ref->pvalue;
-                    if (unlikely(JS_IsUninitialized(val))) {
-                        JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
-                        return -1;
-                    }
-                    desc->value = JS_DupValue(ctx, val);
-                } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
-                    /* Instantiate property and retry */
-                    if (JS_AutoInitProperty(ctx, p, prop, pr))
-                        return -1;
-                    goto retry;
-                }
-            } else {
-                desc->value = JS_DupValue(ctx, pr->u.value);
-            }
-        } else {
-            /* for consistency, send the exception even if desc is NULL */
-            if (unlikely((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF)) {
-                if (unlikely(JS_IsUninitialized(*pr->u.var_ref->pvalue))) {
-                    JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
-                    return -1;
-                }
-            } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
-                /* nothing to do: delay instantiation until actual value and/or attributes are read */
-            }
-        }
-        return TRUE;
-    }
-    if (p->is_exotic) {
-        if (p->fast_array) {
-            /* specific case for fast arrays */
-            if (__JS_AtomIsTaggedInt(prop)) {
-                uint32_t idx;
-                idx = __JS_AtomToUInt32(prop);
-                if (idx < p->u.array.count) {
-                    if (desc) {
-                        desc->flags = JS_PROP_WRITABLE | JS_PROP_ENUMERABLE;
-                        if (p->class_id == JS_CLASS_ARRAY ||
-                            p->class_id == JS_CLASS_ARGUMENTS)
-                            desc->flags |= JS_PROP_CONFIGURABLE;
-                        desc->getter = JS_UNDEFINED;
-                        desc->setter = JS_UNDEFINED;
-                        desc->value = JS_GetPropertyUint32(ctx, JS_MKPTR(JS_TAG_OBJECT, p), idx);
-                    }
-                    return TRUE;
-                }
-            }
-            if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-                p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
-                int ret;
-                ret = JS_AtomIsNumericIndex(ctx, prop);
-                if (ret != 0) {
-                    if (ret < 0)
-                        return -1;
-                    if (typed_array_is_detached(ctx, p)) {
-                        JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-                        return -1;
-                    }
-                }
-            }
-        } else {
-            const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
-            if (em && em->get_own_property) {
-                return em->get_own_property(ctx, desc,
-                                            JS_MKPTR(JS_TAG_OBJECT, p), prop);
-            }
-        }
-    }
-    return FALSE;
-}
-
-int JS_GetOwnProperty(JSContext *ctx, JSPropertyDescriptor *desc,
-                      JSValueConst obj, JSAtom prop)
-{
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) {
-        JS_ThrowTypeErrorNotAnObject(ctx);
-        return -1;
-    }
-    return JS_GetOwnPropertyInternal(ctx, desc, JS_VALUE_GET_OBJ(obj), prop);
-}
-
-/* return -1 if exception (Proxy object only) or TRUE/FALSE */
-int JS_IsExtensible(JSContext *ctx, JSValueConst obj)
-{
-    JSObject *p;
-
-    if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT))
-        return FALSE;
-    p = JS_VALUE_GET_OBJ(obj);
-    if (unlikely(p->class_id == JS_CLASS_PROXY))
-        return js_proxy_isExtensible(ctx, obj);
-    else
-        return p->extensible;
-}
-
-/* return -1 if exception (Proxy object only) or TRUE/FALSE */
-int JS_PreventExtensions(JSContext *ctx, JSValueConst obj)
-{
-    JSObject *p;
-
-    if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT))
-        return FALSE;
-    p = JS_VALUE_GET_OBJ(obj);
-    if (unlikely(p->class_id == JS_CLASS_PROXY))
-        return js_proxy_preventExtensions(ctx, obj);
-    p->extensible = FALSE;
-    return TRUE;
-}
-
-/* return -1 if exception otherwise TRUE or FALSE */
-int JS_HasProperty(JSContext *ctx, JSValueConst obj, JSAtom prop)
-{
-    JSObject *p;
-    int ret;
-
-    if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT))
-        return FALSE;
-    p = JS_VALUE_GET_OBJ(obj);
-    for(;;) {
-        if (p->is_exotic) {
-            const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
-            if (em && em->has_property)
-                return em->has_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p), prop);
-        }
-        ret = JS_GetOwnPropertyInternal(ctx, NULL, p, prop);
-        if (ret != 0)
-            return ret;
-        if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-            p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
-            ret = JS_AtomIsNumericIndex(ctx, prop);
-            if (ret != 0) {
-                if (ret < 0)
-                    return -1;
-                /* the detached array test was done in
-                   JS_GetOwnPropertyInternal() */
-                return FALSE;
-            }
-        }
-        p = p->shape->proto;
-        if (!p)
-            break;
-    }
-    return FALSE;
-}
-
-/* val must be a symbol */
-static JSAtom js_symbol_to_atom(JSContext *ctx, JSValue val)
-{
-    JSAtomStruct *p = JS_VALUE_GET_PTR(val);
-    return js_get_atom_index(ctx->rt, p);
-}
-
-/* return JS_ATOM_NULL in case of exception */
-static JSAtom js_value_to_atom(JSContext *ctx, JSValueConst val)
-{
-    JSAtom atom;
-    uint32_t tag;
-    tag = JS_VALUE_GET_TAG(val);
-    if (tag == JS_TAG_INT &&
-        (uint32_t)JS_VALUE_GET_INT(val) <= JS_ATOM_MAX_INT) {
-        /* fast path for integer values */
-        atom = __JS_AtomFromUInt32(JS_VALUE_GET_INT(val));
-    } else if (tag == JS_TAG_SYMBOL) {
-        JSAtomStruct *p = JS_VALUE_GET_PTR(val);
-        atom = JS_DupAtom(ctx, js_get_atom_index(ctx->rt, p));
-    } else {
-        JSValue str;
-        str = JS_ToPropertyKey(ctx, val);
-        if (JS_IsException(str))
-            return JS_ATOM_NULL;
-        if (JS_VALUE_GET_TAG(str) == JS_TAG_SYMBOL) {
-            atom = js_symbol_to_atom(ctx, str);
-        } else {
-            atom = JS_NewAtomStr(ctx, JS_VALUE_GET_STRING(str));
-        }
-    }
-    return atom;
-}
-
-static JSValue JS_GetPropertyValue(JSContext *ctx, JSValueConst this_obj,
-                                   JSValue prop)
-{
-    JSAtom atom;
-    JSValue ret;
-
-    if (likely(JS_VALUE_GET_TAG(this_obj) == JS_TAG_OBJECT &&
-               JS_VALUE_GET_TAG(prop) == JS_TAG_INT)) {
-        JSObject *p;
-        uint32_t idx, len;
-        /* fast path for array access */
-        p = JS_VALUE_GET_OBJ(this_obj);
-        idx = JS_VALUE_GET_INT(prop);
-        len = (uint32_t)p->u.array.count;
-        if (unlikely(idx >= len))
-            goto slow_path;
-        switch(p->class_id) {
-        case JS_CLASS_ARRAY:
-        case JS_CLASS_ARGUMENTS:
-            return JS_DupValue(ctx, p->u.array.u.values[idx]);
-        case JS_CLASS_INT8_ARRAY:
-            return JS_NewInt32(ctx, p->u.array.u.int8_ptr[idx]);
-        case JS_CLASS_UINT8C_ARRAY:
-        case JS_CLASS_UINT8_ARRAY:
-            return JS_NewInt32(ctx, p->u.array.u.uint8_ptr[idx]);
-        case JS_CLASS_INT16_ARRAY:
-            return JS_NewInt32(ctx, p->u.array.u.int16_ptr[idx]);
-        case JS_CLASS_UINT16_ARRAY:
-            return JS_NewInt32(ctx, p->u.array.u.uint16_ptr[idx]);
-        case JS_CLASS_INT32_ARRAY:
-            return JS_NewInt32(ctx, p->u.array.u.int32_ptr[idx]);
-        case JS_CLASS_UINT32_ARRAY:
-            return JS_NewUint32(ctx, p->u.array.u.uint32_ptr[idx]);
-#ifdef CONFIG_BIGNUM
-        case JS_CLASS_BIG_INT64_ARRAY:
-            return JS_NewBigInt64(ctx, p->u.array.u.int64_ptr[idx]);
-        case JS_CLASS_BIG_UINT64_ARRAY:
-            return JS_NewBigUint64(ctx, p->u.array.u.uint64_ptr[idx]);
-#endif
-        case JS_CLASS_FLOAT32_ARRAY:
-            return __JS_NewFloat64(ctx, p->u.array.u.float_ptr[idx]);
-        case JS_CLASS_FLOAT64_ARRAY:
-            return __JS_NewFloat64(ctx, p->u.array.u.double_ptr[idx]);
-        default:
-            goto slow_path;
-        }
-    } else {
-    slow_path:
-        atom = js_value_to_atom(ctx, prop);
-        JS_FreeValue(ctx, prop);
-        if (unlikely(atom == JS_ATOM_NULL))
-            return JS_EXCEPTION;
-        ret = JS_GetProperty(ctx, this_obj, atom);
-        JS_FreeAtom(ctx, atom);
-        return ret;
-    }
-}
-
-JSValue JS_GetPropertyUint32(JSContext *ctx, JSValueConst this_obj,
-                             uint32_t idx)
-{
-    return JS_GetPropertyValue(ctx, this_obj, JS_NewUint32(ctx, idx));
-}
-
-/* Check if an object has a generalized numeric property. Return value:
-   -1 for exception,
-   TRUE if property exists, stored into *pval,
-   FALSE if proprty does not exist.
- */
-static int JS_TryGetPropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx, JSValue *pval)
-{
-    JSValue val = JS_UNDEFINED;
-    JSAtom prop;
-    int present;
-
-    if (likely((uint64_t)idx <= JS_ATOM_MAX_INT)) {
-        /* fast path */
-        present = JS_HasProperty(ctx, obj, __JS_AtomFromUInt32(idx));
-        if (present > 0) {
-            val = JS_GetPropertyValue(ctx, obj, JS_NewInt32(ctx, idx));
-            if (unlikely(JS_IsException(val)))
-                present = -1;
-        }
-    } else {
-        prop = JS_NewAtomInt64(ctx, idx);
-        present = -1;
-        if (likely(prop != JS_ATOM_NULL)) {
-            present = JS_HasProperty(ctx, obj, prop);
-            if (present > 0) {
-                val = JS_GetProperty(ctx, obj, prop);
-                if (unlikely(JS_IsException(val)))
-                    present = -1;
-            }
-            JS_FreeAtom(ctx, prop);
-        }
-    }
-    *pval = val;
-    return present;
-}
-
-static JSValue JS_GetPropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx)
-{
-    JSAtom prop;
-    JSValue val;
-
-    if ((uint64_t)idx <= INT32_MAX) {
-        /* fast path for fast arrays */
-        return JS_GetPropertyValue(ctx, obj, JS_NewInt32(ctx, idx));
-    }
-    prop = JS_NewAtomInt64(ctx, idx);
-    if (prop == JS_ATOM_NULL)
-        return JS_EXCEPTION;
-
-    val = JS_GetProperty(ctx, obj, prop);
-    JS_FreeAtom(ctx, prop);
-    return val;
-}
-
-JSValue JS_GetPropertyStr(JSContext *ctx, JSValueConst this_obj,
-                          const char *prop)
-{
-    JSAtom atom;
-    JSValue ret;
-    atom = JS_NewAtom(ctx, prop);
-    ret = JS_GetProperty(ctx, this_obj, atom);
-    JS_FreeAtom(ctx, atom);
-    return ret;
-}
-
-/* Note: the property value is not initialized. Return NULL if memory
-   error. */
-static JSProperty *add_property(JSContext *ctx,
-                                JSObject *p, JSAtom prop, int prop_flags)
-{
-    JSShape *sh, *new_sh;
-
-    sh = p->shape;
-    if (sh->is_hashed) {
-        /* try to find an existing shape */
-        new_sh = find_hashed_shape_prop(ctx->rt, sh, prop, prop_flags);
-        if (new_sh) {
-            /* matching shape found: use it */
-            /*  the property array may need to be resized */
-            if (new_sh->prop_size != sh->prop_size) {
-                JSProperty *new_prop;
-                new_prop = js_realloc(ctx, p->prop, sizeof(p->prop[0]) *
-                                      new_sh->prop_size);
-                if (!new_prop)
-                    return NULL;
-                p->prop = new_prop;
-            }
-            p->shape = js_dup_shape(new_sh);
-            js_free_shape(ctx->rt, sh);
-            return &p->prop[new_sh->prop_count - 1];
-        } else if (sh->header.ref_count != 1) {
-            /* if the shape is shared, clone it */
-            new_sh = js_clone_shape(ctx, sh);
-            if (!new_sh)
-                return NULL;
-            /* hash the cloned shape */
-            new_sh->is_hashed = TRUE;
-            js_shape_hash_link(ctx->rt, new_sh);
-            js_free_shape(ctx->rt, p->shape);
-            p->shape = new_sh;
-        }
-    }
-    assert(p->shape->header.ref_count == 1);
-    if (add_shape_property(ctx, &p->shape, p, prop, prop_flags))
-        return NULL;
-    return &p->prop[p->shape->prop_count - 1];
-}
-
-/* can be called on Array or Arguments objects. return < 0 if
-   memory alloc error. */
-static no_inline __exception int convert_fast_array_to_array(JSContext *ctx,
-                                                             JSObject *p)
-{
-    JSProperty *pr;
-    JSShape *sh;
-    JSValue *tab;
-    uint32_t i, len, new_count;
-
-    if (js_shape_prepare_update(ctx, p, NULL))
-        return -1;
-    len = p->u.array.count;
-    /* resize the properties once to simplify the error handling */
-    sh = p->shape;
-    new_count = sh->prop_count + len;
-    if (new_count > sh->prop_size) {
-        if (resize_properties(ctx, &p->shape, p, new_count))
-            return -1;
-    }
-
-    tab = p->u.array.u.values;
-    for(i = 0; i < len; i++) {
-        /* add_property cannot fail here but
-           __JS_AtomFromUInt32(i) fails for i > INT32_MAX */
-        pr = add_property(ctx, p, __JS_AtomFromUInt32(i), JS_PROP_C_W_E);
-        pr->u.value = *tab++;
-    }
-    js_free(ctx, p->u.array.u.values);
-    p->u.array.count = 0;
-    p->u.array.u.values = NULL; /* fail safe */
-    p->u.array.u1.size = 0;
-    p->fast_array = 0;
-    return 0;
-}
-
-static int delete_property(JSContext *ctx, JSObject *p, JSAtom atom)
-{
-    JSShape *sh;
-    JSShapeProperty *pr, *lpr, *prop;
-    JSProperty *pr1;
-    uint32_t lpr_idx;
-    intptr_t h, h1;
-
- redo:
-    sh = p->shape;
-    h1 = atom & sh->prop_hash_mask;
-    h = sh->prop_hash_end[-h1 - 1];
-    prop = get_shape_prop(sh);
-    lpr = NULL;
-    lpr_idx = 0;   /* prevent warning */
-    while (h != 0) {
-        pr = &prop[h - 1];
-        if (likely(pr->atom == atom)) {
-            /* found ! */
-            if (!(pr->flags & JS_PROP_CONFIGURABLE))
-                return FALSE;
-            /* realloc the shape if needed */
-            if (lpr)
-                lpr_idx = lpr - get_shape_prop(sh);
-            if (js_shape_prepare_update(ctx, p, &pr))
-                return -1;
-            sh = p->shape;
-            /* remove property */
-            if (lpr) {
-                lpr = get_shape_prop(sh) + lpr_idx;
-                lpr->hash_next = pr->hash_next;
-            } else {
-                sh->prop_hash_end[-h1 - 1] = pr->hash_next;
-            }
-            /* free the entry */
-            pr1 = &p->prop[h - 1];
-            free_property(ctx->rt, pr1, pr->flags);
-            JS_FreeAtom(ctx, pr->atom);
-            /* put default values */
-            pr->flags = 0;
-            pr->atom = JS_ATOM_NULL;
-            pr1->u.value = JS_UNDEFINED;
-            return TRUE;
-        }
-        lpr = pr;
-        h = pr->hash_next;
-    }
-
-    if (p->is_exotic) {
-        if (p->fast_array) {
-            uint32_t idx;
-            if (JS_AtomIsArrayIndex(ctx, &idx, atom) &&
-                idx < p->u.array.count) {
-                if (p->class_id == JS_CLASS_ARRAY ||
-                    p->class_id == JS_CLASS_ARGUMENTS) {
-                    /* Special case deleting the last element of a fast Array */
-                    if (idx == p->u.array.count - 1) {
-                        JS_FreeValue(ctx, p->u.array.u.values[idx]);
-                        p->u.array.count = idx;
-                        return TRUE;
-                    }
-                    if (convert_fast_array_to_array(ctx, p))
-                        return -1;
-                    goto redo;
-                } else {
-                    return FALSE; /* not configurable */
-                }
-            }
-        } else {
-            const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
-            if (em && em->delete_property) {
-                return em->delete_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p), atom);
-            }
-        }
-    }
-    /* not found */
-    return TRUE;
-}
-
-static int call_setter(JSContext *ctx, JSObject *setter,
-                       JSValueConst this_obj, JSValue val, int flags)
-{
-    JSValue ret, func;
-    if (likely(setter)) {
-        func = JS_MKPTR(JS_TAG_OBJECT, setter);
-        /* Note: the field could be removed in the setter */
-        func = JS_DupValue(ctx, func);
-        ret = JS_CallFree(ctx, func, this_obj, 1, (JSValueConst *)&val);
-        JS_FreeValue(ctx, val);
-        if (JS_IsException(ret))
-            return -1;
-        JS_FreeValue(ctx, ret);
-    } else {
-        JS_FreeValue(ctx, val);
-        if ((flags & JS_PROP_THROW) ||
-            ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) {
-            JS_ThrowTypeError(ctx, "no setter for property");
-            return -1;
-        }
-        /* XXX: should return FALSE? */
-    }
-    return TRUE;
-}
-
-/* set the array length and remove the array elements if necessary. */
-static int set_array_length(JSContext *ctx, JSObject *p, JSProperty *prop,
-                            JSValue val, int flags)
-{
-    uint32_t len, idx, cur_len;
-    int i, ret;
-
-    ret = JS_ToArrayLengthFree(ctx, &len, val);
-    if (ret)
-        return -1;
-    if (likely(p->fast_array)) {
-        uint32_t old_len = p->u.array.count;
-        if (len < old_len) {
-            for(i = len; i < old_len; i++) {
-                JS_FreeValue(ctx, p->u.array.u.values[i]);
-            }
-            p->u.array.count = len;
-        }
-#ifdef CONFIG_BIGNUM
-        set_value(ctx, &prop->u.value, JS_NewUint32(ctx, len));
-#else
-        prop->u.value = JS_NewUint32(ctx, len);
-#endif
-    } else {
-        /* Note: length is always a uint32 because the object is an
-           array */
-        JS_ToUint32(ctx, &cur_len, prop->u.value);
-        if (len < cur_len) {
-            uint32_t d;
-            JSShape *sh;
-            JSShapeProperty *pr;
-
-            d = cur_len - len;
-            sh = p->shape;
-            if (d <= sh->prop_count) {
-                JSAtom atom;
-
-                /* faster to iterate */
-                while (cur_len > len) {
-                    atom = JS_NewAtomUInt32(ctx, cur_len - 1);
-                    ret = delete_property(ctx, p, atom);
-                    JS_FreeAtom(ctx, atom);
-                    if (unlikely(!ret)) {
-                        /* unlikely case: property is not
-                           configurable */
-                        break;
-                    }
-                    cur_len--;
-                }
-            } else {
-                /* faster to iterate thru all the properties. Need two
-                   passes in case one of the property is not
-                   configurable */
-                cur_len = len;
-                for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count;
-                    i++, pr++) {
-                    if (pr->atom != JS_ATOM_NULL &&
-                        JS_AtomIsArrayIndex(ctx, &idx, pr->atom)) {
-                        if (idx >= cur_len &&
-                            !(pr->flags & JS_PROP_CONFIGURABLE)) {
-                            cur_len = idx + 1;
-                        }
-                    }
-                }
-
-                for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count;
-                    i++, pr++) {
-                    if (pr->atom != JS_ATOM_NULL &&
-                        JS_AtomIsArrayIndex(ctx, &idx, pr->atom)) {
-                        if (idx >= cur_len) {
-                            /* remove the property */
-                            delete_property(ctx, p, pr->atom);
-                            /* WARNING: the shape may have been modified */
-                            sh = p->shape;
-                            pr = get_shape_prop(sh) + i;
-                        }
-                    }
-                }
-            }
-        } else {
-            cur_len = len;
-        }
-        set_value(ctx, &p->prop[0].u.value, JS_NewUint32(ctx, cur_len));
-        if (unlikely(cur_len > len)) {
-            return JS_ThrowTypeErrorOrFalse(ctx, flags, "not configurable");
-        }
-    }
-    return TRUE;
-}
-
-/* Preconditions: 'p' must be of class JS_CLASS_ARRAY, p->fast_array =
-   TRUE and p->extensible = TRUE */
-static int add_fast_array_element(JSContext *ctx, JSObject *p,
-                                  JSValue val, int flags)
-{
-    uint32_t new_len, array_len;
-    /* extend the array by one */
-    /* XXX: convert to slow array if new_len > 2^31-1 elements */
-    new_len = p->u.array.count + 1;
-    /* update the length if necessary. We assume that if the length is
-       not an integer, then if it >= 2^31.  */
-    if (likely(JS_VALUE_GET_TAG(p->prop[0].u.value) == JS_TAG_INT)) {
-        array_len = JS_VALUE_GET_INT(p->prop[0].u.value);
-        if (new_len > array_len) {
-            if (unlikely(!(get_shape_prop(p->shape)->flags & JS_PROP_WRITABLE))) {
-                JS_FreeValue(ctx, val);
-                return JS_ThrowTypeErrorReadOnly(ctx, flags, JS_ATOM_length);
-            }
-            p->prop[0].u.value = JS_NewInt32(ctx, new_len);
-        }
-    }
-    if (unlikely(new_len > p->u.array.u1.size)) {
-        uint32_t new_size;
-        size_t slack;
-        JSValue *new_array_prop;
-        /* XXX: potential arithmetic overflow */
-        new_size = max_int(new_len, p->u.array.u1.size * 3 / 2);
-        new_array_prop = js_realloc2(ctx, p->u.array.u.values, sizeof(JSValue) * new_size, &slack);
-        if (!new_array_prop) {
-            JS_FreeValue(ctx, val);
-            return -1;
-        }
-        new_size += slack / sizeof(*new_array_prop);
-        p->u.array.u.values = new_array_prop;
-        p->u.array.u1.size = new_size;
-    }
-    p->u.array.u.values[new_len - 1] = val;
-    p->u.array.count = new_len;
-    return TRUE;
-}
-
-static void js_free_desc(JSContext *ctx, JSPropertyDescriptor *desc)
-{
-    JS_FreeValue(ctx, desc->getter);
-    JS_FreeValue(ctx, desc->setter);
-    JS_FreeValue(ctx, desc->value);
-}
-
-/* generic (and slower) version of JS_SetProperty() for Reflect.set() */
-static int JS_SetPropertyGeneric(JSContext *ctx,
-                                 JSObject *p, JSAtom prop,
-                                 JSValue val, JSValueConst this_obj,
-                                 int flags)
-{
-    int ret;
-    JSPropertyDescriptor desc;
-
-    while (p != NULL) {
-        if (p->is_exotic) {
-            const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
-            if (em && em->set_property) {
-                ret = em->set_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p), prop,
-                                       val, this_obj, flags);
-                JS_FreeValue(ctx, val);
-                return ret;
-            }
-        }
-
-        ret = JS_GetOwnPropertyInternal(ctx, &desc, p, prop);
-        if (ret < 0)
-            return ret;
-        if (ret) {
-            if (desc.flags & JS_PROP_GETSET) {
-                JSObject *setter;
-                if (JS_IsUndefined(desc.setter))
-                    setter = NULL;
-                else
-                    setter = JS_VALUE_GET_OBJ(desc.setter);
-                ret = call_setter(ctx, setter, this_obj, val, flags);
-                JS_FreeValue(ctx, desc.getter);
-                JS_FreeValue(ctx, desc.setter);
-                return ret;
-            } else {
-                JS_FreeValue(ctx, desc.value);
-                if (!(desc.flags & JS_PROP_WRITABLE)) {
-                    goto read_only_error;
-                }
-            }
-            break;
-        }
-        p = p->shape->proto;
-    }
-
-    if (!JS_IsObject(this_obj))
-        return JS_ThrowTypeErrorOrFalse(ctx, flags, "receiver is not an object");
-
-    p = JS_VALUE_GET_OBJ(this_obj);
-
-    /* modify the property in this_obj if it already exists */
-    ret = JS_GetOwnPropertyInternal(ctx, &desc, p, prop);
-    if (ret < 0)
-        return ret;
-    if (ret) {
-        if (desc.flags & JS_PROP_GETSET) {
-            JS_FreeValue(ctx, desc.getter);
-            JS_FreeValue(ctx, desc.setter);
-            JS_FreeValue(ctx, val);
-            return JS_ThrowTypeErrorOrFalse(ctx, flags, "setter is forbidden");
-        } else {
-            JS_FreeValue(ctx, desc.value);
-            if (!(desc.flags & JS_PROP_WRITABLE) ||
-                p->class_id == JS_CLASS_MODULE_NS) {
-            read_only_error:
-                JS_FreeValue(ctx, val);
-                return JS_ThrowTypeErrorReadOnly(ctx, flags, prop);
-            }
-        }
-        ret = JS_DefineProperty(ctx, this_obj, prop, val,
-                                JS_UNDEFINED, JS_UNDEFINED,
-                                JS_PROP_HAS_VALUE);
-        JS_FreeValue(ctx, val);
-        return ret;
-    }
-
-    ret = JS_CreateProperty(ctx, p, prop, val, JS_UNDEFINED, JS_UNDEFINED,
-                            flags |
-                            JS_PROP_HAS_VALUE |
-                            JS_PROP_HAS_ENUMERABLE |
-                            JS_PROP_HAS_WRITABLE |
-                            JS_PROP_HAS_CONFIGURABLE |
-                            JS_PROP_C_W_E);
-    JS_FreeValue(ctx, val);
-    return ret;
-}
-
-/* return -1 in case of exception or TRUE or FALSE. Warning: 'val' is
-   freed by the function. 'flags' is a bitmask of JS_PROP_NO_ADD,
-   JS_PROP_THROW or JS_PROP_THROW_STRICT. If JS_PROP_NO_ADD is set,
-   the new property is not added and an error is raised. */
-int JS_SetPropertyInternal(JSContext *ctx, JSValueConst this_obj,
-                           JSAtom prop, JSValue val, int flags)
-{
-    JSObject *p, *p1;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-    uint32_t tag;
-    JSPropertyDescriptor desc;
-    int ret;
-#if 0
-    printf("JS_SetPropertyInternal: "); print_atom(ctx, prop); printf("\n");
-#endif
-    tag = JS_VALUE_GET_TAG(this_obj);
-    if (unlikely(tag != JS_TAG_OBJECT)) {
-        switch(tag) {
-        case JS_TAG_NULL:
-        case JS_TAG_UNDEFINED:
-            JS_FreeValue(ctx, val);
-            JS_ThrowTypeError(ctx, "value has no property");
-            return -1;
-        default:
-            /* even on a primitive type we can have setters on the prototype */
-            p = NULL;
-            p1 = JS_VALUE_GET_OBJ(JS_GetPrototype(ctx, this_obj));
-            goto prototype_lookup;
-        }
-    }
-    p = JS_VALUE_GET_OBJ(this_obj);
-retry:
-    prs = find_own_property(&pr, p, prop);
-    if (prs) {
-        if (likely((prs->flags & (JS_PROP_TMASK | JS_PROP_WRITABLE |
-                                  JS_PROP_LENGTH)) == JS_PROP_WRITABLE)) {
-            /* fast case */
-            set_value(ctx, &pr->u.value, val);
-            return TRUE;
-        } else if ((prs->flags & (JS_PROP_LENGTH | JS_PROP_WRITABLE)) ==
-                   (JS_PROP_LENGTH | JS_PROP_WRITABLE)) {
-            assert(p->class_id == JS_CLASS_ARRAY);
-            assert(prop == JS_ATOM_length);
-            return set_array_length(ctx, p, pr, val, flags);
-        } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
-            return call_setter(ctx, pr->u.getset.setter, this_obj, val, flags);
-        } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
-            /* JS_PROP_WRITABLE is always true for variable
-               references, but they are write protected in module name
-               spaces. */
-            if (p->class_id == JS_CLASS_MODULE_NS)
-                goto read_only_prop;
-            set_value(ctx, pr->u.var_ref->pvalue, val);
-            return TRUE;
-        } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
-            /* Instantiate property and retry (potentially useless) */
-            if (JS_AutoInitProperty(ctx, p, prop, pr)) {
-                JS_FreeValue(ctx, val);
-                return -1;
-            }
-            goto retry;
-        } else {
-            goto read_only_prop;
-        }
-    }
-
-    p1 = p;
-    for(;;) {
-        if (p1->is_exotic) {
-            if (p1->fast_array) {
-                if (__JS_AtomIsTaggedInt(prop)) {
-                    uint32_t idx = __JS_AtomToUInt32(prop);
-                    if (idx < p1->u.array.count) {
-                        if (unlikely(p == p1))
-                            return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), val, flags);
-                        else
-                            break;
-                    } else if (p1->class_id >= JS_CLASS_UINT8C_ARRAY &&
-                               p1->class_id <= JS_CLASS_FLOAT64_ARRAY) {
-                        goto typed_array_oob;
-                    }
-                } else if (p1->class_id >= JS_CLASS_UINT8C_ARRAY &&
-                           p1->class_id <= JS_CLASS_FLOAT64_ARRAY) {
-                    ret = JS_AtomIsNumericIndex(ctx, prop);
-                    if (ret != 0) {
-                        if (ret < 0) {
-                            JS_FreeValue(ctx, val);
-                            return -1;
-                        }
-                    typed_array_oob:
-                        val = JS_ToNumberFree(ctx, val);
-                        JS_FreeValue(ctx, val);
-                        if (JS_IsException(val))
-                            return -1;
-                        if (typed_array_is_detached(ctx, p1)) {
-                            JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-                            return -1;
-                        }
-                        return JS_ThrowTypeErrorOrFalse(ctx, flags, "out-of-bound numeric index");
-                    }
-                }
-            } else {
-                const JSClassExoticMethods *em = ctx->rt->class_array[p1->class_id].exotic;
-                if (em) {
-                    if (em->set_property) {
-                        ret = em->set_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p1), prop,
-                                               val, this_obj, flags);
-                        JS_FreeValue(ctx, val);
-                        return ret;
-                    }
-                    if (em->get_own_property) {
-                        ret = em->get_own_property(ctx, &desc,
-                                                   JS_MKPTR(JS_TAG_OBJECT, p1), prop);
-                        if (ret < 0) {
-                            JS_FreeValue(ctx, val);
-                            return ret;
-                        }
-                        if (ret) {
-                            if (desc.flags & JS_PROP_GETSET) {
-                                JSObject *setter;
-                                if (JS_IsUndefined(desc.setter))
-                                    setter = NULL;
-                                else
-                                    setter = JS_VALUE_GET_OBJ(desc.setter);
-                                ret = call_setter(ctx, setter, this_obj, val, flags);
-                                JS_FreeValue(ctx, desc.getter);
-                                JS_FreeValue(ctx, desc.setter);
-                                return ret;
-                            } else {
-                                JS_FreeValue(ctx, desc.value);
-                                if (!(desc.flags & JS_PROP_WRITABLE))
-                                    goto read_only_prop;
-                                if (likely(p == p1)) {
-                                    ret = JS_DefineProperty(ctx, this_obj, prop, val,
-                                                            JS_UNDEFINED, JS_UNDEFINED,
-                                                            JS_PROP_HAS_VALUE);
-                                    JS_FreeValue(ctx, val);
-                                    return ret;
-                                } else {
-                                    break;
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-        }
-        p1 = p1->shape->proto;
-    prototype_lookup:
-        if (!p1)
-            break;
-
-    retry2:
-        prs = find_own_property(&pr, p1, prop);
-        if (prs) {
-            if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
-                return call_setter(ctx, pr->u.getset.setter, this_obj, val, flags);
-            } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
-                /* Instantiate property and retry (potentially useless) */
-                if (JS_AutoInitProperty(ctx, p1, prop, pr))
-                    return -1;
-                goto retry2;
-            } else if (!(prs->flags & JS_PROP_WRITABLE)) {
-            read_only_prop:
-                JS_FreeValue(ctx, val);
-                return JS_ThrowTypeErrorReadOnly(ctx, flags, prop);
-            }
-        }
-    }
-
-    if (unlikely(flags & JS_PROP_NO_ADD)) {
-        JS_FreeValue(ctx, val);
-        JS_ThrowReferenceErrorNotDefined(ctx, prop);
-        return -1;
-    }
-
-    if (unlikely(!p)) {
-        JS_FreeValue(ctx, val);
-        return JS_ThrowTypeErrorOrFalse(ctx, flags, "not an object");
-    }
-
-    if (unlikely(!p->extensible)) {
-        JS_FreeValue(ctx, val);
-        return JS_ThrowTypeErrorOrFalse(ctx, flags, "object is not extensible");
-    }
-
-    if (p->is_exotic) {
-        if (p->class_id == JS_CLASS_ARRAY && p->fast_array) {
-            uint32_t idx = __JS_AtomToUInt32(prop);
-            if (idx == p->u.array.count) {
-                /* fast case */
-                return add_fast_array_element(ctx, p, val, flags);
-            } else {
-                goto generic_create_prop;
-            }
-        } else {
-        generic_create_prop:
-            ret = JS_CreateProperty(ctx, p, prop, val, JS_UNDEFINED, JS_UNDEFINED,
-                                    flags |
-                                    JS_PROP_HAS_VALUE |
-                                    JS_PROP_HAS_ENUMERABLE |
-                                    JS_PROP_HAS_WRITABLE |
-                                    JS_PROP_HAS_CONFIGURABLE |
-                                    JS_PROP_C_W_E);
-            JS_FreeValue(ctx, val);
-            return ret;
-        }
-    }
-
-    pr = add_property(ctx, p, prop, JS_PROP_C_W_E);
-    if (unlikely(!pr)) {
-        JS_FreeValue(ctx, val);
-        return -1;
-    }
-    pr->u.value = val;
-    return TRUE;
-}
-
-/* flags can be JS_PROP_THROW or JS_PROP_THROW_STRICT */
-static int JS_SetPropertyValue(JSContext *ctx, JSValueConst this_obj,
-                               JSValue prop, JSValue val, int flags)
-{
-    if (likely(JS_VALUE_GET_TAG(this_obj) == JS_TAG_OBJECT &&
-               JS_VALUE_GET_TAG(prop) == JS_TAG_INT)) {
-        JSObject *p;
-        uint32_t idx;
-        double d;
-        int32_t v;
-
-        /* fast path for array access */
-        p = JS_VALUE_GET_OBJ(this_obj);
-        idx = JS_VALUE_GET_INT(prop);
-        switch(p->class_id) {
-        case JS_CLASS_ARRAY:
-            if (unlikely(idx >= (uint32_t)p->u.array.count)) {
-                JSObject *p1;
-                JSShape *sh1;
-
-                /* fast path to add an element to the array */
-                if (idx != (uint32_t)p->u.array.count ||
-                    !p->fast_array || !p->extensible)
-                    goto slow_path;
-                /* check if prototype chain has a numeric property */
-                p1 = p->shape->proto;
-                while (p1 != NULL) {
-                    sh1 = p1->shape;
-                    if (p1->class_id == JS_CLASS_ARRAY) {
-                        if (unlikely(!p1->fast_array))
-                            goto slow_path;
-                    } else if (p1->class_id == JS_CLASS_OBJECT) {
-                        if (unlikely(sh1->has_small_array_index))
-                            goto slow_path;
-                    } else {
-                        goto slow_path;
-                    }
-                    p1 = sh1->proto;
-                }
-                /* add element */
-                return add_fast_array_element(ctx, p, val, flags);
-            }
-            set_value(ctx, &p->u.array.u.values[idx], val);
-            break;
-        case JS_CLASS_ARGUMENTS:
-            if (unlikely(idx >= (uint32_t)p->u.array.count))
-                goto slow_path;
-            set_value(ctx, &p->u.array.u.values[idx], val);
-            break;
-        case JS_CLASS_UINT8C_ARRAY:
-            if (JS_ToUint8ClampFree(ctx, &v, val))
-                return -1;
-            /* Note: the conversion can detach the typed array, so the
-               array bound check must be done after */
-            if (unlikely(idx >= (uint32_t)p->u.array.count))
-                goto ta_out_of_bound;
-            p->u.array.u.uint8_ptr[idx] = v;
-            break;
-        case JS_CLASS_INT8_ARRAY:
-        case JS_CLASS_UINT8_ARRAY:
-            if (JS_ToInt32Free(ctx, &v, val))
-                return -1;
-            if (unlikely(idx >= (uint32_t)p->u.array.count))
-                goto ta_out_of_bound;
-            p->u.array.u.uint8_ptr[idx] = v;
-            break;
-        case JS_CLASS_INT16_ARRAY:
-        case JS_CLASS_UINT16_ARRAY:
-            if (JS_ToInt32Free(ctx, &v, val))
-                return -1;
-            if (unlikely(idx >= (uint32_t)p->u.array.count))
-                goto ta_out_of_bound;
-            p->u.array.u.uint16_ptr[idx] = v;
-            break;
-        case JS_CLASS_INT32_ARRAY:
-        case JS_CLASS_UINT32_ARRAY:
-            if (JS_ToInt32Free(ctx, &v, val))
-                return -1;
-            if (unlikely(idx >= (uint32_t)p->u.array.count))
-                goto ta_out_of_bound;
-            p->u.array.u.uint32_ptr[idx] = v;
-            break;
-#ifdef CONFIG_BIGNUM
-        case JS_CLASS_BIG_INT64_ARRAY:
-        case JS_CLASS_BIG_UINT64_ARRAY:
-            /* XXX: need specific conversion function */
-            {
-                int64_t v;
-                if (JS_ToBigInt64Free(ctx, &v, val))
-                    return -1;
-                if (unlikely(idx >= (uint32_t)p->u.array.count))
-                    goto ta_out_of_bound;
-                p->u.array.u.uint64_ptr[idx] = v;
-            }
-            break;
-#endif
-        case JS_CLASS_FLOAT32_ARRAY:
-            if (JS_ToFloat64Free(ctx, &d, val))
-                return -1;
-            if (unlikely(idx >= (uint32_t)p->u.array.count))
-                goto ta_out_of_bound;
-            p->u.array.u.float_ptr[idx] = d;
-            break;
-        case JS_CLASS_FLOAT64_ARRAY:
-            if (JS_ToFloat64Free(ctx, &d, val))
-                return -1;
-            if (unlikely(idx >= (uint32_t)p->u.array.count)) {
-            ta_out_of_bound:
-                if (typed_array_is_detached(ctx, p)) {
-                    JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-                    return -1;
-                } else {
-                    return JS_ThrowTypeErrorOrFalse(ctx, flags, "out-of-bound numeric index");
-                }
-            }
-            p->u.array.u.double_ptr[idx] = d;
-            break;
-        default:
-            goto slow_path;
-        }
-        return TRUE;
-    } else {
-        JSAtom atom;
-        int ret;
-    slow_path:
-        atom = js_value_to_atom(ctx, prop);
-        JS_FreeValue(ctx, prop);
-        if (unlikely(atom == JS_ATOM_NULL)) {
-            JS_FreeValue(ctx, val);
-            return -1;
-        }
-        ret = JS_SetPropertyInternal(ctx, this_obj, atom, val, flags);
-        JS_FreeAtom(ctx, atom);
-        return ret;
-    }
-}
-
-int JS_SetPropertyUint32(JSContext *ctx, JSValueConst this_obj,
-                         uint32_t idx, JSValue val)
-{
-    return JS_SetPropertyValue(ctx, this_obj, JS_NewUint32(ctx, idx), val,
-                               JS_PROP_THROW);
-}
-
-int JS_SetPropertyInt64(JSContext *ctx, JSValueConst this_obj,
-                        int64_t idx, JSValue val)
-{
-    JSAtom prop;
-    int res;
-
-    if ((uint64_t)idx <= INT32_MAX) {
-        /* fast path for fast arrays */
-        return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), val,
-                                   JS_PROP_THROW);
-    }
-    prop = JS_NewAtomInt64(ctx, idx);
-    if (prop == JS_ATOM_NULL) {
-        JS_FreeValue(ctx, val);
-        return -1;
-    }
-    res = JS_SetProperty(ctx, this_obj, prop, val);
-    JS_FreeAtom(ctx, prop);
-    return res;
-}
-
-int JS_SetPropertyStr(JSContext *ctx, JSValueConst this_obj,
-                      const char *prop, JSValue val)
-{
-    JSAtom atom;
-    int ret;
-    atom = JS_NewAtom(ctx, prop);
-    ret = JS_SetPropertyInternal(ctx, this_obj, atom, val, JS_PROP_THROW);
-    JS_FreeAtom(ctx, atom);
-    return ret;
-}
-
-/* compute the property flags. For each flag: (JS_PROP_HAS_x forces
-   it, otherwise def_flags is used)
-   Note: makes assumption about the bit pattern of the flags
-*/
-static int get_prop_flags(int flags, int def_flags)
-{
-    int mask;
-    mask = (flags >> JS_PROP_HAS_SHIFT) & JS_PROP_C_W_E;
-    return (flags & mask) | (def_flags & ~mask);
-}
-
-static int JS_CreateProperty(JSContext *ctx, JSObject *p,
-                             JSAtom prop, JSValueConst val,
-                             JSValueConst getter, JSValueConst setter,
-                             int flags)
-{
-    JSProperty *pr;
-    int ret, prop_flags;
-
-    /* add a new property or modify an existing exotic one */
-    if (p->is_exotic) {
-        if (p->class_id == JS_CLASS_ARRAY) {
-            uint32_t idx, len;
-
-            if (p->fast_array) {
-                if (__JS_AtomIsTaggedInt(prop)) {
-                    idx = __JS_AtomToUInt32(prop);
-                    if (idx == p->u.array.count) {
-                        if (!p->extensible)
-                            goto not_extensible;
-                        if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET))
-                            goto convert_to_array;
-                        prop_flags = get_prop_flags(flags, 0);
-                        if (prop_flags != JS_PROP_C_W_E)
-                            goto convert_to_array;
-                        return add_fast_array_element(ctx, p,
-                                                      JS_DupValue(ctx, val), flags);
-                    } else {
-                        goto convert_to_array;
-                    }
-                } else if (JS_AtomIsArrayIndex(ctx, &idx, prop)) {
-                    /* convert the fast array to normal array */
-                convert_to_array:
-                    if (convert_fast_array_to_array(ctx, p))
-                        return -1;
-                    goto generic_array;
-                }
-            } else if (JS_AtomIsArrayIndex(ctx, &idx, prop)) {
-                JSProperty *plen;
-                JSShapeProperty *pslen;
-            generic_array:
-                /* update the length field */
-                plen = &p->prop[0];
-                JS_ToUint32(ctx, &len, plen->u.value);
-                if ((idx + 1) > len) {
-                    pslen = get_shape_prop(p->shape);
-                    if (unlikely(!(pslen->flags & JS_PROP_WRITABLE)))
-                        return JS_ThrowTypeErrorReadOnly(ctx, flags, JS_ATOM_length);
-                    /* XXX: should update the length after defining
-                       the property */
-                    len = idx + 1;
-                    set_value(ctx, &plen->u.value, JS_NewUint32(ctx, len));
-                }
-            }
-        } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-                   p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
-            ret = JS_AtomIsNumericIndex(ctx, prop);
-            if (ret != 0) {
-                if (ret < 0)
-                    return -1;
-                return JS_ThrowTypeErrorOrFalse(ctx, flags, "cannot create numeric index in typed array");
-            }
-        } else if (!(flags & JS_PROP_NO_EXOTIC)) {
-            const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
-            if (em) {
-                if (em->define_own_property) {
-                    return em->define_own_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p),
-                                                   prop, val, getter, setter, flags);
-                }
-                ret = JS_IsExtensible(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
-                if (ret < 0)
-                    return -1;
-                if (!ret)
-                    goto not_extensible;
-            }
-        }
-    }
-
-    if (!p->extensible) {
-    not_extensible:
-        return JS_ThrowTypeErrorOrFalse(ctx, flags, "object is not extensible");
-    }
-
-    if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
-        prop_flags = (flags & (JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE)) |
-            JS_PROP_GETSET;
-    } else {
-        prop_flags = flags & JS_PROP_C_W_E;
-    }
-    pr = add_property(ctx, p, prop, prop_flags);
-    if (unlikely(!pr))
-        return -1;
-    if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
-        pr->u.getset.getter = NULL;
-        if ((flags & JS_PROP_HAS_GET) && JS_IsFunction(ctx, getter)) {
-            pr->u.getset.getter =
-                JS_VALUE_GET_OBJ(JS_DupValue(ctx, getter));
-        }
-        pr->u.getset.setter = NULL;
-        if ((flags & JS_PROP_HAS_SET) && JS_IsFunction(ctx, setter)) {
-            pr->u.getset.setter =
-                JS_VALUE_GET_OBJ(JS_DupValue(ctx, setter));
-        }
-    } else {
-        if (flags & JS_PROP_HAS_VALUE) {
-            pr->u.value = JS_DupValue(ctx, val);
-        } else {
-            pr->u.value = JS_UNDEFINED;
-        }
-    }
-    return TRUE;
-}
-
-/* return FALSE if not OK */
-static BOOL check_define_prop_flags(int prop_flags, int flags)
-{
-    BOOL has_accessor, is_getset;
-
-    if (!(prop_flags & JS_PROP_CONFIGURABLE)) {
-        if ((flags & (JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE)) ==
-            (JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE)) {
-            return FALSE;
-        }
-        if ((flags & JS_PROP_HAS_ENUMERABLE) &&
-            (flags & JS_PROP_ENUMERABLE) != (prop_flags & JS_PROP_ENUMERABLE))
-            return FALSE;
-    }
-    if (flags & (JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE |
-                 JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
-        if (!(prop_flags & JS_PROP_CONFIGURABLE)) {
-            has_accessor = ((flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) != 0);
-            is_getset = ((prop_flags & JS_PROP_TMASK) == JS_PROP_GETSET);
-            if (has_accessor != is_getset)
-                return FALSE;
-            if (!has_accessor && !is_getset && !(prop_flags & JS_PROP_WRITABLE)) {
-                /* not writable: cannot set the writable bit */
-                if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) ==
-                    (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE))
-                    return FALSE;
-            }
-        }
-    }
-    return TRUE;
-}
-
-/* ensure that the shape can be safely modified */
-static int js_shape_prepare_update(JSContext *ctx, JSObject *p,
-                                   JSShapeProperty **pprs)
-{
-    JSShape *sh;
-    uint32_t idx = 0;    /* prevent warning */
-
-    sh = p->shape;
-    if (sh->is_hashed) {
-        if (sh->header.ref_count != 1) {
-            if (pprs)
-                idx = *pprs - get_shape_prop(sh);
-            /* clone the shape (the resulting one is no longer hashed) */
-            sh = js_clone_shape(ctx, sh);
-            if (!sh)
-                return -1;
-            js_free_shape(ctx->rt, p->shape);
-            p->shape = sh;
-            if (pprs)
-                *pprs = get_shape_prop(sh) + idx;
-        } else {
-            js_shape_hash_unlink(ctx->rt, sh);
-            sh->is_hashed = FALSE;
-        }
-    }
-    return 0;
-}
-
-static int js_update_property_flags(JSContext *ctx, JSObject *p,
-                                    JSShapeProperty **pprs, int flags)
-{
-    if (flags != (*pprs)->flags) {
-        if (js_shape_prepare_update(ctx, p, pprs))
-            return -1;
-        (*pprs)->flags = flags;
-    }
-    return 0;
-}
-
-/* allowed flags:
-   JS_PROP_CONFIGURABLE, JS_PROP_WRITABLE, JS_PROP_ENUMERABLE
-   JS_PROP_HAS_GET, JS_PROP_HAS_SET, JS_PROP_HAS_VALUE,
-   JS_PROP_HAS_CONFIGURABLE, JS_PROP_HAS_WRITABLE, JS_PROP_HAS_ENUMERABLE,
-   JS_PROP_THROW, JS_PROP_NO_EXOTIC.
-   If JS_PROP_THROW is set, return an exception instead of FALSE.
-   if JS_PROP_NO_EXOTIC is set, do not call the exotic
-   define_own_property callback.
-   return -1 (exception), FALSE or TRUE.
-*/
-int JS_DefineProperty(JSContext *ctx, JSValueConst this_obj,
-                      JSAtom prop, JSValueConst val,
-                      JSValueConst getter, JSValueConst setter, int flags)
-{
-    JSObject *p;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-    int mask, res;
-
-    if (JS_VALUE_GET_TAG(this_obj) != JS_TAG_OBJECT) {
-        JS_ThrowTypeErrorNotAnObject(ctx);
-        return -1;
-    }
-    p = JS_VALUE_GET_OBJ(this_obj);
-
- redo_prop_update:
-    prs = find_own_property(&pr, p, prop);
-    if (prs) {
-        /* property already exists */
-        if (!check_define_prop_flags(prs->flags, flags)) {
-        not_configurable:
-            return JS_ThrowTypeErrorOrFalse(ctx, flags, "property is not configurable");
-        }
-
-    retry:
-        if (flags & (JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE |
-                     JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
-            if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
-                JSObject *new_getter, *new_setter;
-
-                if (JS_IsFunction(ctx, getter)) {
-                    new_getter = JS_VALUE_GET_OBJ(getter);
-                } else {
-                    new_getter = NULL;
-                }
-                if (JS_IsFunction(ctx, setter)) {
-                    new_setter = JS_VALUE_GET_OBJ(setter);
-                } else {
-                    new_setter = NULL;
-                }
-
-                if ((prs->flags & JS_PROP_TMASK) != JS_PROP_GETSET) {
-                    if (js_shape_prepare_update(ctx, p, &prs))
-                        return -1;
-                    /* convert to getset */
-                    if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
-                        free_var_ref(ctx->rt, pr->u.var_ref);
-                    } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
-                        /* clear property and update */
-                        if (js_shape_prepare_update(ctx, p, &prs))
-                            return -1;
-                        prs->flags &= ~JS_PROP_TMASK;
-                        pr->u.value = JS_UNDEFINED;
-                        goto retry;
-                    } else {
-                        JS_FreeValue(ctx, pr->u.value);
-                    }
-                    prs->flags = (prs->flags &
-                                  (JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE)) |
-                        JS_PROP_GETSET;
-                    pr->u.getset.getter = NULL;
-                    pr->u.getset.setter = NULL;
-                } else {
-                    if (!(prs->flags & JS_PROP_CONFIGURABLE)) {
-                        if ((flags & JS_PROP_HAS_GET) &&
-                            new_getter != pr->u.getset.getter) {
-                            goto not_configurable;
-                        }
-                        if ((flags & JS_PROP_HAS_SET) &&
-                            new_setter != pr->u.getset.setter) {
-                            goto not_configurable;
-                        }
-                    }
-                }
-                if (flags & JS_PROP_HAS_GET) {
-                    if (pr->u.getset.getter)
-                        JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter));
-                    if (new_getter)
-                        JS_DupValue(ctx, getter);
-                    pr->u.getset.getter = new_getter;
-                }
-                if (flags & JS_PROP_HAS_SET) {
-                    if (pr->u.getset.setter)
-                        JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter));
-                    if (new_setter)
-                        JS_DupValue(ctx, setter);
-                    pr->u.getset.setter = new_setter;
-                }
-            } else {
-                if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
-                    /* convert to data descriptor */
-                    if (js_shape_prepare_update(ctx, p, &prs))
-                        return -1;
-                    if (pr->u.getset.getter)
-                        JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter));
-                    if (pr->u.getset.setter)
-                        JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter));
-                    prs->flags &= ~(JS_PROP_TMASK | JS_PROP_WRITABLE);
-                    pr->u.value = JS_UNDEFINED;
-                } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
-                    /* Note: JS_PROP_VARREF is always writable */
-                } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
-                    /* clear property and update */
-                    if (js_shape_prepare_update(ctx, p, &prs))
-                        return -1;
-                    prs->flags &= ~JS_PROP_TMASK;
-                    pr->u.value = JS_UNDEFINED;
-                } else {
-                    if ((prs->flags & (JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)) == 0 &&
-                        (flags & JS_PROP_HAS_VALUE) &&
-                        !js_same_value(ctx, val, pr->u.value)) {
-                        goto not_configurable;
-                    }
-                }
-                if (prs->flags & JS_PROP_LENGTH) {
-                    if (flags & JS_PROP_HAS_VALUE) {
-                        res = set_array_length(ctx, p, pr, JS_DupValue(ctx, val),
-                                               flags);
-                    } else {
-                        res = TRUE;
-                    }
-                    /* still need to reset the writable flag if needed.
-                       The JS_PROP_LENGTH is reset to have the correct
-                       read-only behavior in JS_SetProperty(). */
-                    if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) ==
-                        JS_PROP_HAS_WRITABLE) {
-                        prs = get_shape_prop(p->shape);
-                        if (js_update_property_flags(ctx, p, &prs,
-                                                     prs->flags & ~(JS_PROP_WRITABLE | JS_PROP_LENGTH)))
-                            return -1;
-                    }
-                    return res;
-                } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
-                    if (flags & JS_PROP_HAS_VALUE) {
-                        if (p->class_id == JS_CLASS_MODULE_NS) {
-                            /* JS_PROP_WRITABLE is always true for variable
-                               references, but they are write protected in module name
-                               spaces. */
-                            if (!js_same_value(ctx, val, *pr->u.var_ref->pvalue))
-                                goto not_configurable;
-                        }
-                        /* update the reference */
-                        set_value(ctx, pr->u.var_ref->pvalue,
-                                  JS_DupValue(ctx, val));
-                    }
-                    /* if writable is set to false, no longer a
-                       reference (for mapped arguments) */
-                    if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) == JS_PROP_HAS_WRITABLE) {
-                        JSValue val1;
-                        if (js_shape_prepare_update(ctx, p, &prs))
-                            return -1;
-                        val1 = JS_DupValue(ctx, *pr->u.var_ref->pvalue);
-                        free_var_ref(ctx->rt, pr->u.var_ref);
-                        pr->u.value = val1;
-                        prs->flags &= ~(JS_PROP_TMASK | JS_PROP_WRITABLE);
-                    }
-                } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
-                    /* XXX: should never happen, type was reset above */
-                    abort();
-                } else {
-                    if (flags & JS_PROP_HAS_VALUE) {
-                        JS_FreeValue(ctx, pr->u.value);
-                        pr->u.value = JS_DupValue(ctx, val);
-                    }
-                    if (flags & JS_PROP_HAS_WRITABLE) {
-                        if (js_update_property_flags(ctx, p, &prs,
-                                                     (prs->flags & ~JS_PROP_WRITABLE) |
-                                                     (flags & JS_PROP_WRITABLE)))
-                            return -1;
-                    }
-                }
-            }
-        }
-        mask = 0;
-        if (flags & JS_PROP_HAS_CONFIGURABLE)
-            mask |= JS_PROP_CONFIGURABLE;
-        if (flags & JS_PROP_HAS_ENUMERABLE)
-            mask |= JS_PROP_ENUMERABLE;
-        if (js_update_property_flags(ctx, p, &prs,
-                                     (prs->flags & ~mask) | (flags & mask)))
-            return -1;
-        return TRUE;
-    }
-
-    /* handle modification of fast array elements */
-    if (p->fast_array) {
-        uint32_t idx;
-        uint32_t prop_flags;
-        if (p->class_id == JS_CLASS_ARRAY) {
-            if (__JS_AtomIsTaggedInt(prop)) {
-                idx = __JS_AtomToUInt32(prop);
-                if (idx < p->u.array.count) {
-                    prop_flags = get_prop_flags(flags, JS_PROP_C_W_E);
-                    if (prop_flags != JS_PROP_C_W_E)
-                        goto convert_to_slow_array;
-                    if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
-                    convert_to_slow_array:
-                        if (convert_fast_array_to_array(ctx, p))
-                            return -1;
-                        else
-                            goto redo_prop_update;
-                    }
-                    if (flags & JS_PROP_HAS_VALUE) {
-                        set_value(ctx, &p->u.array.u.values[idx], JS_DupValue(ctx, val));
-                    }
-                    return TRUE;
-                }
-            }
-        } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-                   p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
-            JSValue num;
-            int ret;
-
-            if (!__JS_AtomIsTaggedInt(prop)) {
-                /* slow path with to handle all numeric indexes */
-                num = JS_AtomIsNumericIndex1(ctx, prop);
-                if (JS_IsUndefined(num))
-                    goto typed_array_done;
-                if (JS_IsException(num))
-                    return -1;
-                ret = JS_NumberIsInteger(ctx, num);
-                if (ret < 0) {
-                    JS_FreeValue(ctx, num);
-                    return -1;
-                }
-                if (!ret) {
-                    JS_FreeValue(ctx, num);
-                    return JS_ThrowTypeErrorOrFalse(ctx, flags, "non integer index in typed array");
-                }
-                ret = JS_NumberIsNegativeOrMinusZero(ctx, num);
-                JS_FreeValue(ctx, num);
-                if (ret) {
-                    return JS_ThrowTypeErrorOrFalse(ctx, flags, "negative index in typed array");
-                }
-                if (!__JS_AtomIsTaggedInt(prop))
-                    goto typed_array_oob;
-            }
-            idx = __JS_AtomToUInt32(prop);
-            /* if the typed array is detached, p->u.array.count = 0 */
-            if (idx >= typed_array_get_length(ctx, p)) {
-            typed_array_oob:
-                return JS_ThrowTypeErrorOrFalse(ctx, flags, "out-of-bound index in typed array");
-            }
-            prop_flags = get_prop_flags(flags, JS_PROP_ENUMERABLE | JS_PROP_WRITABLE);
-            if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET) ||
-                prop_flags != (JS_PROP_ENUMERABLE | JS_PROP_WRITABLE)) {
-                return JS_ThrowTypeErrorOrFalse(ctx, flags, "invalid descriptor flags");
-            }
-            if (flags & JS_PROP_HAS_VALUE) {
-                return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), JS_DupValue(ctx, val), flags);
-            }
-            return TRUE;
-        typed_array_done: ;
-        }
-    }
-
-    return JS_CreateProperty(ctx, p, prop, val, getter, setter, flags);
-}
-
-static int JS_DefineAutoInitProperty(JSContext *ctx, JSValueConst this_obj,
-                                     JSAtom prop, int (*init_func)(JSContext *ctx, JSObject *obj,
-                                                                   JSAtom prop, void *opaque),
-                                     void *opaque, int flags)
-{
-    JSObject *p;
-    JSProperty *pr;
-
-    if (JS_VALUE_GET_TAG(this_obj) != JS_TAG_OBJECT)
-        return FALSE;
-
-    p = JS_VALUE_GET_OBJ(this_obj);
-
-    if (find_own_property(&pr, p, prop)) {
-        /* property already exists */
-        abort();
-        return FALSE;
-    }
-
-    /* Specialized CreateProperty */
-    pr = add_property(ctx, p, prop, (flags & JS_PROP_C_W_E) | JS_PROP_AUTOINIT);
-    if (unlikely(!pr))
-        return -1;
-
-    pr->u.init.init_func = init_func;
-    pr->u.init.opaque = opaque;
-    return TRUE;
-}
-
-/* shortcut to add or redefine a new property value */
-int JS_DefinePropertyValue(JSContext *ctx, JSValueConst this_obj,
-                           JSAtom prop, JSValue val, int flags)
-{
-    int ret;
-    ret = JS_DefineProperty(ctx, this_obj, prop, val, JS_UNDEFINED, JS_UNDEFINED,
-                            flags | JS_PROP_HAS_VALUE | JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_ENUMERABLE);
-    JS_FreeValue(ctx, val);
-    return ret;
-}
-
-int JS_DefinePropertyValueValue(JSContext *ctx, JSValueConst this_obj,
-                                JSValue prop, JSValue val, int flags)
-{
-    JSAtom atom;
-    int ret;
-    atom = js_value_to_atom(ctx, prop);
-    JS_FreeValue(ctx, prop);
-    if (unlikely(atom == JS_ATOM_NULL)) {
-        JS_FreeValue(ctx, val);
-        return -1;
-    }
-    ret = JS_DefinePropertyValue(ctx, this_obj, atom, val, flags);
-    JS_FreeAtom(ctx, atom);
-    return ret;
-}
-
-int JS_DefinePropertyValueUint32(JSContext *ctx, JSValueConst this_obj,
-                                 uint32_t idx, JSValue val, int flags)
-{
-    return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewUint32(ctx, idx),
-                                       val, flags);
-}
-
-int JS_DefinePropertyValueInt64(JSContext *ctx, JSValueConst this_obj,
-                                int64_t idx, JSValue val, int flags)
-{
-    return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewInt64(ctx, idx),
-                                       val, flags);
-}
-
-int JS_DefinePropertyValueStr(JSContext *ctx, JSValueConst this_obj,
-                              const char *prop, JSValue val, int flags)
-{
-    JSAtom atom;
-    int ret;
-    atom = JS_NewAtom(ctx, prop);
-    ret = JS_DefinePropertyValue(ctx, this_obj, atom, val, flags);
-    JS_FreeAtom(ctx, atom);
-    return ret;
-}
-
-/* shortcut to add getter & setter */
-int JS_DefinePropertyGetSet(JSContext *ctx, JSValueConst this_obj,
-                            JSAtom prop, JSValue getter, JSValue setter,
-                            int flags)
-{
-    int ret;
-    ret = JS_DefineProperty(ctx, this_obj, prop, JS_UNDEFINED, getter, setter,
-                            flags | JS_PROP_HAS_GET | JS_PROP_HAS_SET |
-                            JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_ENUMERABLE);
-    JS_FreeValue(ctx, getter);
-    JS_FreeValue(ctx, setter);
-    return ret;
-}
-
-static int JS_CreateDataPropertyUint32(JSContext *ctx, JSValueConst this_obj,
-                                       int64_t idx, JSValue val, int flags)
-{
-    return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewInt64(ctx, idx),
-                                       val, flags | JS_PROP_CONFIGURABLE |
-                                       JS_PROP_ENUMERABLE | JS_PROP_WRITABLE);
-}
-
-static int JS_DefineObjectName(JSContext *ctx, JSValueConst obj,
-                               JSAtom name, int flags)
-{
-    if (name != JS_ATOM_NULL
-    &&  JS_IsObject(obj)
-    &&  !find_own_property1(JS_VALUE_GET_OBJ(obj), JS_ATOM_name)
-    &&  JS_DefinePropertyValue(ctx, obj, JS_ATOM_name, JS_AtomToString(ctx, name), flags) < 0) {
-        return -1;
-    }
-    return 0;
-}
-
-static int JS_DefineObjectNameComputed(JSContext *ctx, JSValueConst obj,
-                                       JSValueConst str, int flags)
-{
-    if (JS_IsObject(obj) &&
-        !find_own_property1(JS_VALUE_GET_OBJ(obj), JS_ATOM_name)) {
-        JSAtom prop;
-        JSValue name_str;
-        prop = js_value_to_atom(ctx, str);
-        if (prop == JS_ATOM_NULL)
-            return -1;
-        name_str = js_get_function_name(ctx, prop);
-        JS_FreeAtom(ctx, prop);
-        if (JS_IsException(name_str))
-            return -1;
-        if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_name, name_str, flags) < 0)
-            return -1;
-    }
-    return 0;
-}
-
-#define DEFINE_GLOBAL_LEX_VAR (1 << 7)
-#define DEFINE_GLOBAL_FUNC_VAR (1 << 6)
-
-static JSValue JS_ThrowSyntaxErrorVarRedeclaration(JSContext *ctx, JSAtom prop)
-{
-    char buf[ATOM_GET_STR_BUF_SIZE];
-    return JS_ThrowSyntaxError(ctx, "redeclaration of %s",
-                               JS_AtomGetStr(ctx, buf, sizeof(buf), prop));
-}
-
-/* flags is 0, DEFINE_GLOBAL_LEX_VAR or DEFINE_GLOBAL_FUNC_VAR */
-/* XXX: could support exotic global object. */
-static int JS_CheckDefineGlobalVar(JSContext *ctx, JSAtom prop, int flags)
-{
-    JSObject *p;
-    JSShapeProperty *prs;
-    char buf[ATOM_GET_STR_BUF_SIZE];
-
-    p = JS_VALUE_GET_OBJ(ctx->global_obj);
-    prs = find_own_property1(p, prop);
-    /* XXX: should handle JS_PROP_AUTOINIT */
-    if (flags & DEFINE_GLOBAL_LEX_VAR) {
-        if (prs && !(prs->flags & JS_PROP_CONFIGURABLE))
-            goto fail_redeclaration;
-    } else {
-        if (!prs && !p->extensible)
-            goto define_error;
-        if (flags & DEFINE_GLOBAL_FUNC_VAR) {
-            if (prs) {
-                if (!(prs->flags & JS_PROP_CONFIGURABLE) &&
-                    ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET ||
-                     ((prs->flags & (JS_PROP_WRITABLE | JS_PROP_ENUMERABLE)) !=
-                      (JS_PROP_WRITABLE | JS_PROP_ENUMERABLE)))) {
-                define_error:
-                    JS_ThrowTypeError(ctx, "cannot define variable %s",
-                                      JS_AtomGetStr(ctx, buf, sizeof(buf), prop));
-                    return -1;
-                }
-            }
-        }
-    }
-    /* check if there already is a lexical declaration */
-    p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
-    prs = find_own_property1(p, prop);
-    if (prs) {
-    fail_redeclaration:
-        JS_ThrowSyntaxErrorVarRedeclaration(ctx, prop);
-        return -1;
-    }
-    return 0;
-}
-
-/* def_flags is (0, DEFINE_GLOBAL_LEX_VAR) |
-   JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE */
-/* XXX: could support exotic global object. */
-static int JS_DefineGlobalVar(JSContext *ctx, JSAtom prop, int def_flags)
-{
-    JSObject *p;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-    JSValue val;
-    int flags;
-
-    if (def_flags & DEFINE_GLOBAL_LEX_VAR) {
-        p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
-        flags = JS_PROP_ENUMERABLE | (def_flags & JS_PROP_WRITABLE) |
-            JS_PROP_CONFIGURABLE;
-        val = JS_UNINITIALIZED;
-    } else {
-        p = JS_VALUE_GET_OBJ(ctx->global_obj);
-        flags = JS_PROP_ENUMERABLE | JS_PROP_WRITABLE |
-            (def_flags & JS_PROP_CONFIGURABLE);
-        val = JS_UNDEFINED;
-    }
-    prs = find_own_property1(p, prop);
-    if (prs)
-        return 0;
-    if (!p->extensible)
-        return 0;
-    pr = add_property(ctx, p, prop, flags);
-    if (unlikely(!pr))
-        return -1;
-    pr->u.value = val;
-    return 0;
-}
-
-/* 'def_flags' is 0 or JS_PROP_CONFIGURABLE. */
-/* XXX: could support exotic global object. */
-static int JS_DefineGlobalFunction(JSContext *ctx, JSAtom prop,
-                                   JSValueConst func, int def_flags)
-{
-
-    JSObject *p;
-    JSShapeProperty *prs;
-    int flags;
-
-    p = JS_VALUE_GET_OBJ(ctx->global_obj);
-    prs = find_own_property1(p, prop);
-    flags = JS_PROP_HAS_VALUE | JS_PROP_THROW;
-    if (!prs || (prs->flags & JS_PROP_CONFIGURABLE)) {
-        flags |= JS_PROP_ENUMERABLE | JS_PROP_WRITABLE | def_flags |
-            JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_ENUMERABLE;
-    }
-    if (JS_DefineProperty(ctx, ctx->global_obj, prop, func,
-                          JS_UNDEFINED, JS_UNDEFINED, flags) < 0)
-        return -1;
-    return 0;
-}
-
-static JSValue JS_GetGlobalVar(JSContext *ctx, JSAtom prop,
-                               BOOL throw_ref_error)
-{
-    JSObject *p;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-
-    /* no exotic behavior is possible in global_var_obj */
-    p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
-    prs = find_own_property(&pr, p, prop);
-    if (prs) {
-        /* XXX: should handle JS_PROP_TMASK properties */
-        if (unlikely(JS_IsUninitialized(pr->u.value)))
-            return JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
-        return JS_DupValue(ctx, pr->u.value);
-    }
-    return JS_GetPropertyInternal(ctx, ctx->global_obj, prop,
-                                 ctx->global_obj, throw_ref_error);
-}
-
-/* construct a reference to a global variable */
-static int JS_GetGlobalVarRef(JSContext *ctx, JSAtom prop, JSValue *sp)
-{
-    JSObject *p;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-
-    /* no exotic behavior is possible in global_var_obj */
-    p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
-    prs = find_own_property(&pr, p, prop);
-    if (prs) {
-        /* XXX: should handle JS_PROP_AUTOINIT properties? */
-        /* XXX: conformance: do these tests in
-           OP_put_var_ref/OP_get_var_ref ? */
-        if (unlikely(JS_IsUninitialized(pr->u.value))) {
-            JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
-            return -1;
-        }
-        if (unlikely(!(prs->flags & JS_PROP_WRITABLE))) {
-            return JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, prop);
-        }
-        sp[0] = JS_DupValue(ctx, ctx->global_var_obj);
-    } else {
-        int ret;
-        ret = JS_HasProperty(ctx, ctx->global_obj, prop);
-        if (ret < 0)
-            return -1;
-        if (ret) {
-            sp[0] = JS_DupValue(ctx, ctx->global_obj);
-        } else {
-            sp[0] = JS_UNDEFINED;
-        }
-    }
-    sp[1] = JS_AtomToValue(ctx, prop);
-    return 0;
-}
-
-/* use for strict variable access: test if the variable exists */
-static int JS_CheckGlobalVar(JSContext *ctx, JSAtom prop)
-{
-    JSObject *p;
-    JSShapeProperty *prs;
-    int ret;
-
-    /* no exotic behavior is possible in global_var_obj */
-    p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
-    prs = find_own_property1(p, prop);
-    if (prs) {
-        ret = TRUE;
-    } else {
-        ret = JS_HasProperty(ctx, ctx->global_obj, prop);
-        if (ret < 0)
-            return -1;
-    }
-    return ret;
-}
-
-/* flag = 0: normal variable write
-   flag = 1: initialize lexical variable
-   flag = 2: normal variable write, strict check was done before
-*/
-static int JS_SetGlobalVar(JSContext *ctx, JSAtom prop, JSValue val,
-                           int flag)
-{
-    JSObject *p;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-    int flags;
-
-    /* no exotic behavior is possible in global_var_obj */
-    p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
-    prs = find_own_property(&pr, p, prop);
-    if (prs) {
-        /* XXX: should handle JS_PROP_AUTOINIT properties? */
-        if (flag != 1) {
-            if (unlikely(JS_IsUninitialized(pr->u.value))) {
-                JS_FreeValue(ctx, val);
-                JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
-                return -1;
-            }
-            if (unlikely(!(prs->flags & JS_PROP_WRITABLE))) {
-                JS_FreeValue(ctx, val);
-                return JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, prop);
-            }
-        }
-        set_value(ctx, &pr->u.value, val);
-        return 0;
-    }
-
-    flags = JS_PROP_THROW_STRICT;
-    if (flag != 2 && is_strict_mode(ctx))
-        flags |= JS_PROP_NO_ADD;
-    return JS_SetPropertyInternal(ctx, ctx->global_obj, prop, val, flags);
-}
-
-/* return -1, FALSE or TRUE. return FALSE if not configurable or
-   invalid object. return -1 in case of exception.
-   flags can be 0, JS_PROP_THROW or JS_PROP_THROW_STRICT */
-int JS_DeleteProperty(JSContext *ctx, JSValueConst obj, JSAtom prop, int flags)
-{
-    if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(obj);
-        int res = delete_property(ctx, p, prop);
-        if (res != FALSE)
-            return res;
-    }
-    if ((flags & JS_PROP_THROW) ||
-        ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) {
-        JS_ThrowTypeError(ctx, "could not delete property");
-        return -1;
-    }
-    return FALSE;
-}
-
-int JS_DeletePropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx, int flags)
-{
-    JSAtom prop;
-    int res;
-
-    if ((uint64_t)idx <= JS_ATOM_MAX_INT) {
-        /* fast path for fast arrays */
-        return JS_DeleteProperty(ctx, obj, __JS_AtomFromUInt32(idx), flags);
-    }
-    prop = JS_NewAtomInt64(ctx, idx);
-    if (prop == JS_ATOM_NULL)
-        return -1;
-    res = JS_DeleteProperty(ctx, obj, prop, flags);
-    JS_FreeAtom(ctx, prop);
-    return res;
-}
-
-BOOL JS_IsFunction(JSContext *ctx, JSValueConst val)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
-        return FALSE;
-    p = JS_VALUE_GET_OBJ(val);
-    switch(p->class_id) {
-    case JS_CLASS_BYTECODE_FUNCTION:
-    case JS_CLASS_C_FUNCTION:
-    case JS_CLASS_BOUND_FUNCTION:
-        return TRUE;
-    case JS_CLASS_PROXY:
-        return p->u.proxy_data->is_func;
-    default:
-        return (ctx->rt->class_array[p->class_id].call != NULL);
-    }
-}
-
-BOOL JS_IsCFunction(JSContext *ctx, JSValueConst val, JSCFunction *func, int magic)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
-        return FALSE;
-    p = JS_VALUE_GET_OBJ(val);
-    if (p->class_id == JS_CLASS_C_FUNCTION)
-        return (p->u.cfunc.c_function.generic == func && p->u.cfunc.magic == magic);
-    else
-        return FALSE;
-}
-
-BOOL JS_IsConstructor(JSContext *ctx, JSValueConst val)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
-        return FALSE;
-    p = JS_VALUE_GET_OBJ(val);
-    return p->is_constructor;
-}
-
-static BOOL JS_SetConstructorBit(JSContext *ctx, JSValueConst func_obj,
-                                 BOOL val)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)
-        return FALSE;
-    p = JS_VALUE_GET_OBJ(func_obj);
-    p->is_constructor = val;
-    return TRUE;
-}
-
-BOOL JS_IsError(JSContext *ctx, JSValueConst val)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
-        return FALSE;
-    p = JS_VALUE_GET_OBJ(val);
-    if (p->class_id == JS_CLASS_ERROR)
-        return TRUE;
-    if (ctx->is_error_property_enabled) {
-        /* check for a special property for test262 test suites */
-        JSValue isError;
-        isError = JS_GetPropertyStr(ctx, val, "isError");
-        return JS_ToBoolFree(ctx, isError);
-    } else {
-        return FALSE;
-    }
-}
-
-/* only used for test262 test suites */
-void JS_EnableIsErrorProperty(JSContext *ctx, BOOL enable)
-{
-    ctx->is_error_property_enabled = enable;
-}
-
-/* used to avoid catching interrupt exceptions */
-BOOL JS_IsUncatchableError(JSContext *ctx, JSValueConst val)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
-        return FALSE;
-    p = JS_VALUE_GET_OBJ(val);
-    return p->class_id == JS_CLASS_ERROR && p->is_uncatchable_error;
-}
-
-void JS_SetUncatchableError(JSContext *ctx, JSValueConst val, BOOL flag)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
-        return;
-    p = JS_VALUE_GET_OBJ(val);
-    if (p->class_id == JS_CLASS_ERROR)
-        p->is_uncatchable_error = flag;
-}
-
-void JS_ResetUncatchableError(JSContext *ctx)
-{
-    JS_SetUncatchableError(ctx, ctx->current_exception, FALSE);
-}
-
-void JS_SetOpaque(JSValue obj, void *opaque)
-{
-   JSObject *p;
-    if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
-        p = JS_VALUE_GET_OBJ(obj);
-        p->u.opaque = opaque;
-    }
-}
-
-/* return NULL if not an object of class class_id */
-void *JS_GetOpaque(JSValueConst obj, JSClassID class_id)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
-        return NULL;
-    p = JS_VALUE_GET_OBJ(obj);
-    if (p->class_id != class_id)
-        return NULL;
-    return p->u.opaque;
-}
-
-void *JS_GetOpaque2(JSContext *ctx, JSValueConst obj, JSClassID class_id)
-{
-    void *p = JS_GetOpaque(obj, class_id);
-    if (unlikely(!p)) {
-        JS_ThrowTypeErrorInvalidClass(ctx, class_id);
-    }
-    return p;
-}
-
-#define HINT_STRING  0
-#define HINT_NUMBER  1
-#define HINT_NONE    2
-#ifdef CONFIG_BIGNUM
-#define HINT_INTEGER 3
-#endif
-/* don't try Symbol.toPrimitive */
-#define HINT_FORCE_ORDINARY (1 << 4)
-
-static JSValue JS_ToPrimitiveFree(JSContext *ctx, JSValue val, int hint)
-{
-    int i;
-    BOOL force_ordinary;
-
-    JSAtom method_name;
-    JSValue method, ret;
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
-        return val;
-    force_ordinary = hint & HINT_FORCE_ORDINARY;
-    hint &= ~HINT_FORCE_ORDINARY;
-    if (!force_ordinary) {
-        method = JS_GetProperty(ctx, val, JS_ATOM_Symbol_toPrimitive);
-        if (JS_IsException(method))
-            goto exception;
-        /* ECMA says *If exoticToPrim is not undefined* but tests in
-           test262 use null as a non callable converter */
-        if (!JS_IsUndefined(method) && !JS_IsNull(method)) {
-            JSAtom atom;
-            JSValue arg;
-            switch(hint) {
-            case HINT_STRING:
-                atom = JS_ATOM_string;
-                break;
-            case HINT_NUMBER:
-                atom = JS_ATOM_number;
-                break;
-            default:
-            case HINT_NONE:
-                atom = JS_ATOM_default;
-                break;
-#ifdef CONFIG_BIGNUM
-            case HINT_INTEGER:
-                atom = JS_ATOM_integer;
-                break;
-#endif
-            }
-            arg = JS_AtomToString(ctx, atom);
-            ret = JS_CallFree(ctx, method, val, 1, (JSValueConst *)&arg);
-            JS_FreeValue(ctx, arg);
-            if (JS_IsException(ret))
-                goto exception;
-            JS_FreeValue(ctx, val);
-            if (JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT)
-                return ret;
-            JS_FreeValue(ctx, ret);
-            return JS_ThrowTypeError(ctx, "toPrimitive");
-        }
-    }
-    if (hint != HINT_STRING)
-        hint = HINT_NUMBER;
-    for(i = 0; i < 2; i++) {
-        if ((i ^ hint) == 0) {
-            method_name = JS_ATOM_toString;
-        } else {
-            method_name = JS_ATOM_valueOf;
-        }
-        method = JS_GetProperty(ctx, val, method_name);
-        if (JS_IsException(method))
-            goto exception;
-        if (JS_IsFunction(ctx, method)) {
-            ret = JS_CallFree(ctx, method, val, 0, NULL);
-            if (JS_IsException(ret))
-                goto exception;
-            if (JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT) {
-                JS_FreeValue(ctx, val);
-                return ret;
-            }
-            JS_FreeValue(ctx, ret);
-        } else {
-            JS_FreeValue(ctx, method);
-        }
-    }
-    JS_ThrowTypeError(ctx, "toPrimitive");
-exception:
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-}
-
-static JSValue JS_ToPrimitive(JSContext *ctx, JSValueConst val, int hint)
-{
-    return JS_ToPrimitiveFree(ctx, JS_DupValue(ctx, val), hint);
-}
-
-static int JS_ToBoolFree(JSContext *ctx, JSValue val)
-{
-    uint32_t tag = JS_VALUE_GET_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-        return JS_VALUE_GET_INT(val) != 0;
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-        return JS_VALUE_GET_INT(val);
-    case JS_TAG_EXCEPTION:
-        return -1;
-    case JS_TAG_STRING:
-        {
-            BOOL ret = JS_VALUE_GET_STRING(val)->len != 0;
-            JS_FreeValue(ctx, val);
-            return ret;
-        }
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-    case JS_TAG_BIG_FLOAT:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            BOOL ret;
-            ret = p->num.expn != BF_EXP_ZERO && p->num.expn != BF_EXP_NAN;
-            JS_FreeValue(ctx, val);
-            return ret;
-        }
-#endif
-    default:
-        if (JS_TAG_IS_FLOAT64(tag)) {
-            double d = JS_VALUE_GET_FLOAT64(val);
-            return !isnan(d) && d != 0;
-        } else {
-            JS_FreeValue(ctx, val);
-            return TRUE;
-        }
-    }
-}
-
-int JS_ToBool(JSContext *ctx, JSValueConst val)
-{
-    return JS_ToBoolFree(ctx, JS_DupValue(ctx, val));
-}
-
-static int skip_spaces(const char *pc)
-{
-    const uint8_t *p, *p_next, *p_start;
-    uint32_t c;
-
-    p = p_start = (const uint8_t *)pc;
-    for (;;) {
-        c = *p;
-        if (c < 128) {
-            if (!((c >= 0x09 && c <= 0x0d) || (c == 0x20)))
-                break;
-            p++;
-        } else {
-            c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next);
-            if (!lre_is_space(c))
-                break;
-            p = p_next;
-        }
-    }
-    return p - p_start;
-}
-
-#ifdef CONFIG_BIGNUM
-
-/* force big int type if integer result */
-#define BF_ATOF_BIG_INT     (1 << 30)
-/* return JS_EXCEPTION if invalid syntax. Otherwise return NaN */
-#define BF_ATOF_THROW       (1 << 29)
-#define BF_ATOF_FLOAT64     (1 << 28)
-
-static JSValue js_atof(JSContext *ctx, const char *p, const char **pp,
-                       int radix, int flags)
-{
-    bf_t a_s, *a = &a_s;
-    int res;
-    slimb_t prec;
-    JSValue val;
-
-    bf_init(ctx->bf_ctx, a);
-    if (flags & BF_ATOF_FLOAT64) {
-        prec = 53;
-        flags |= bf_set_exp_bits(11) | BF_RNDN | BF_FLAG_SUBNORMAL;
-    } else {
-        /* use the current precision */
-        prec = ctx->fp_env.prec;
-        flags |= ctx->fp_env.flags;
-    }
-    p += skip_spaces(p);
-    res = bf_atof(a, p, &p, radix, prec, flags);
-    if ((flags & BF_ATOF_THROW) && bf_is_nan(a)) {
-        bf_delete(a);
-        return JS_EXCEPTION;
-    }
-    if (res & BF_ATOF_ST_INTEGER) {
-        val = JS_NewBigInt2(ctx, a, (flags & BF_ATOF_BIG_INT) != 0);
-    } else if (flags & BF_ATOF_FLOAT64) {
-        double d;
-        bf_get_float64(a, &d, BF_RNDN);
-        bf_delete(a);
-        /* return int or float64 */
-        val = JS_NewFloat64(ctx, d);
-    } else {
-        val = JS_NewBigFloat(ctx, a);
-    }
-    if (pp)
-        *pp = p;
-    return val;
-}
-
-#else
-
-static inline int to_digit(int c)
-{
-    if (c >= '0' && c <= '9')
-        return c - '0';
-    else if (c >= 'A' && c <= 'Z')
-        return c - 'A' + 10;
-    else if (c >= 'a' && c <= 'z')
-        return c - 'a' + 10;
-    else
-        return 36;
-}
-
-#define ATOD_INT_ONLY        (1 << 0)
-/* return JS_EXCEPTION if invalid syntax. Otherwise return NaN */
-#define ATOD_THROW           (1 << 1)
-/* accept Oo and Ob prefixes in addition to 0x prefix if radix = 0 */
-#define ATOD_ACCEPT_BIN_OCT  (1 << 2)
-/* if set return NaN if empty number string */
-#define ATOD_NAN_IF_EMPTY    (1 << 3)
-/* accept O prefix as octal if radix == 0 and properly formed (Annex B) */
-#define ATOD_ACCEPT_LEGACY_OCTAL  (1 << 4)
-/* accept _ between digits as a digit separator */
-#define ATOD_ACCEPT_UNDERSCORES  (1 << 5)
-
-/* radix = 0 accepts prefixes. radix = 16 also
-   accepts 0x prefix. radix must be 0 or between 2 and 36 */
-static JSValue js_atod(JSContext *ctx, const char *str, const char **pp,
-                       int radix, int flags)
-{
-    const char *p;
-    const char *p_start;
-    int is_neg, c, sep;
-    double d;
-
-    /* optional separator between digits */
-    sep = (flags & ATOD_ACCEPT_UNDERSCORES) ? '_' : 256;
-
-    p = str + skip_spaces(str);
-    p_start = p;
-    is_neg = 0;
-    if (p[0] == '+') {
-        p++;
-        p_start++;
-        if (!(flags & ATOD_INT_ONLY))
-            goto no_radix_prefix;
-    } else if (p[0] == '-') {
-        is_neg = 1;
-        p++;
-        p_start++;
-        if (!(flags & ATOD_INT_ONLY))
-            goto no_radix_prefix;
-    }
-    if (p[0] == '0') {
-        if ((p[1] == 'x' || p[1] == 'X') &&
-            (radix == 0 || radix == 16)) {
-            p += 2;
-            radix = 16;
-        } else if ((p[1] == 'o' || p[1] == 'O') &&
-                   radix == 0 && (flags & ATOD_ACCEPT_BIN_OCT)) {
-            p += 2;
-            radix = 8;
-        } else if ((p[1] == 'b' || p[1] == 'B') &&
-                   radix == 0 && (flags & ATOD_ACCEPT_BIN_OCT)) {
-            p += 2;
-            radix = 2;
-        } else if ((p[1] >= '0' && p[1] <= '9') &&
-                   radix == 0 && (flags & ATOD_ACCEPT_LEGACY_OCTAL)) {
-            int i;
-            sep = 256;
-            for (i = 1; (p[i] >= '0' && p[i] <= '7'); i++)
-                continue;
-            if (p[i] == '8' || p[i] == '9')
-                goto no_prefix;
-            p += 1;
-            radix = 8;
-        } else {
-            goto no_prefix;
-        }
-        /* there must be a digit after the prefix */
-        if (to_digit((uint8_t)*p) >= radix)
-            goto fail;
-    no_prefix: ;
-    } else {
- no_radix_prefix:
-        if (!(flags & ATOD_INT_ONLY) && strstart(p, "Infinity", &p)) {
-            d = 1.0 / 0.0;
-            goto done;
-        }
-    }
-    if (radix == 0)
-        radix = 10;
-    if ((flags & ATOD_INT_ONLY) || radix != 10) {
-        uint64_t n_max, n;
-        int int_exp;
-
-        /* skip leading zeros */
-        while (*p == '0')
-            p++;
-        n = 0;
-        if (radix == 10)
-            n_max = ((uint64_t)-1 - 9) / 10; /* most common case */
-        else
-            n_max = ((uint64_t)-1 - (radix - 1)) / radix;
-        /* XXX: could be more precise */
-        int_exp = 0;
-        while (*p != '\0') {
-            if (*p == sep && to_digit(p[1]) < radix)
-                p++;
-            c = to_digit((uint8_t)*p);
-            if (c >= radix)
-                break;
-            if (n <= n_max) {
-                n = n * radix + c;
-            } else {
-                int_exp++;
-            }
-            p++;
-        }
-        d = n;
-        if (int_exp != 0) {
-            d *= pow(radix, int_exp);
-        }
-    } else {
-        p_start = p;
-        while (is_digit((uint8_t)*p)
-           ||  (*p == sep && (p != p_start + 1 || p[-1] != '0') &&
-               is_digit((uint8_t)p[1]))) {
-            p++;
-        }
-        if (*p == '.' && (p > p_start || is_digit((uint8_t)p[1]))) {
-            p++;
-            while (is_digit((uint8_t)*p) || (*p == sep && is_digit((uint8_t)p[1])))
-                p++;
-        }
-        if (p > p_start && (*p == 'e' || *p == 'E')) {
-            const char *p1 = p + 1;
-            if (*p1 == '+') {
-                p1++;
-            } else if (*p1 == '-') {
-                p1++;
-            }
-            if (is_digit((uint8_t)*p1)) {
-                p = p1 + 1;
-                while (is_digit((uint8_t)*p) || (*p == sep && is_digit((uint8_t)p[1])))
-                    p++;
-            }
-        }
-        if (*p == '\0' && sep != '_') {
-            d = strtod(p_start, NULL);
-        } else {
-            char buf1[64], *buf;
-            int i, j, len;
-            BOOL buf_allocated;
-
-            buf = buf1;
-            buf_allocated = FALSE;
-            len = p - p_start;
-            if (len >= sizeof(buf1)) {
-                buf = js_malloc(ctx, len + 1);
-                if (!buf)
-                    return JS_EXCEPTION;
-                buf_allocated = TRUE;
-            }
-            for (i = j = 0; i < len; i++) {
-                if (p_start[i] != '_')
-                    buf[j++] = p_start[i];
-            }
-            buf[j] = '\0';
-            d = strtod(buf, NULL);
-            if (buf_allocated)
-                js_free(ctx, buf);
-        }
-    }
-done:
-    if (is_neg)
-        d = -d;
-    if (p == p_start && (flags & ATOD_NAN_IF_EMPTY)) {
-        d = JS_FLOAT64_NAN;
-    }
-    if (pp)
-        *pp = p;
-    return JS_NewFloat64(ctx, d);
- fail:
-    if (pp)
-        *pp = p;
-    if (flags & ATOD_THROW)
-        return JS_EXCEPTION;
-    else
-        return JS_NAN;
-}
-#endif
-
-typedef enum JSToNumberHintEnum {
-    TON_FLAG_NUMBER,
-    TON_FLAG_INTEGER,
-    TON_FLAG_NUMERIC,
-} JSToNumberHintEnum;
-
-static JSValue JS_ToNumberHintFree(JSContext *ctx, JSValue val,
-                                   JSToNumberHintEnum flag)
-{
-    uint32_t tag;
-    JSValue ret;
-    int hint;
-
- redo:
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-        if (flag == TON_FLAG_NUMBER && !is_bignum_mode(ctx)) {
-            JS_FreeValue(ctx, val);
-            return JS_ThrowTypeError(ctx, "cannot convert bigint to number");
-        }
-        /* fall thru */
-    case JS_TAG_BIG_FLOAT:
-#endif
-    case JS_TAG_FLOAT64:
-    case JS_TAG_INT:
-    case JS_TAG_EXCEPTION:
-        ret = val;
-        break;
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-        ret = JS_NewInt32(ctx, JS_VALUE_GET_INT(val));
-        break;
-    case JS_TAG_UNDEFINED:
-        ret = JS_NAN;
-        break;
-    case JS_TAG_OBJECT:
-#ifdef CONFIG_BIGNUM
-        hint = flag == TON_FLAG_INTEGER ? HINT_INTEGER : HINT_NUMBER;
-#else
-        hint = HINT_NUMBER;
-#endif
-        val = JS_ToPrimitiveFree(ctx, val, hint);
-        if (JS_IsException(val))
-            return JS_EXCEPTION;
-        goto redo;
-    case JS_TAG_STRING:
-        {
-            const char *str;
-            const char *p;
-
-            str = JS_ToCString(ctx, val);
-            JS_FreeValue(ctx, val);
-            if (!str)
-                return JS_EXCEPTION;
-#ifdef CONFIG_BIGNUM
-            {
-                int flags;
-                flags = BF_ATOF_BIN_OCT | BF_ATOF_NO_PREFIX_AFTER_SIGN |
-                    BF_ATOF_JS_QUIRKS | BF_ATOF_FLOAT64;
-                if (is_bignum_mode(ctx))
-                    flags |= BF_ATOF_INT_PREC_INF;
-                else
-                    flags |= BF_ATOF_ONLY_DEC_FLOAT;
-                ret = js_atof(ctx, str, &p, 0, flags);
-            }
-#else
-            ret = js_atod(ctx, str, &p, 0, ATOD_ACCEPT_BIN_OCT);
-#endif
-            p += skip_spaces(p);
-            if (*p != '\0') {
-                JS_FreeValue(ctx, ret);
-                ret = JS_NAN;
-            }
-            JS_FreeCString(ctx, str);
-        }
-        break;
-    case JS_TAG_SYMBOL:
-        JS_FreeValue(ctx, val);
-        return JS_ThrowTypeError(ctx, "cannot convert symbol to number");
-    default:
-        JS_FreeValue(ctx, val);
-        ret = JS_NAN;
-        break;
-    }
-    return ret;
-}
-
-static JSValue JS_ToNumberFree(JSContext *ctx, JSValue val)
-{
-    return JS_ToNumberHintFree(ctx, val, TON_FLAG_NUMBER);
-}
-
-#ifdef CONFIG_BIGNUM
-static JSValue JS_ToNumericFree(JSContext *ctx, JSValue val)
-{
-    return JS_ToNumberHintFree(ctx, val, TON_FLAG_NUMERIC);
-}
-
-static JSValue JS_ToNumeric(JSContext *ctx, JSValueConst val)
-{
-    return JS_ToNumericFree(ctx, JS_DupValue(ctx, val));
-}
-#endif
-
-static __exception int __JS_ToFloat64Free(JSContext *ctx, double *pres,
-                                          JSValue val)
-{
-    double d;
-    uint32_t tag;
-
-    val = JS_ToNumberFree(ctx, val);
-    if (JS_IsException(val)) {
-        *pres = JS_FLOAT64_NAN;
-        return -1;
-    }
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-        d = JS_VALUE_GET_INT(val);
-        break;
-    case JS_TAG_FLOAT64:
-        d = JS_VALUE_GET_FLOAT64(val);
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-    case JS_TAG_BIG_FLOAT:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            /* XXX: there can be a double rounding issue with some
-               primitives (such as JS_ToUint8ClampFree()), but it is
-               not critical to fix it. */
-            bf_get_float64(&p->num, &d, BF_RNDN);
-            JS_FreeValue(ctx, val);
-        }
-        break;
-#endif
-    default:
-        abort();
-    }
-    *pres = d;
-    return 0;
-}
-
-static inline int JS_ToFloat64Free(JSContext *ctx, double *pres, JSValue val)
-{
-    uint32_t tag;
-
-    tag = JS_VALUE_GET_TAG(val);
-    if (tag <= JS_TAG_NULL) {
-        *pres = JS_VALUE_GET_INT(val);
-        return 0;
-    } else if (JS_TAG_IS_FLOAT64(tag)) {
-        *pres = JS_VALUE_GET_FLOAT64(val);
-        return 0;
-    } else {
-        return __JS_ToFloat64Free(ctx, pres, val);
-    }
-}
-
-int JS_ToFloat64(JSContext *ctx, double *pres, JSValueConst val)
-{
-    return JS_ToFloat64Free(ctx, pres, JS_DupValue(ctx, val));
-}
-
-static JSValue JS_ToNumber(JSContext *ctx, JSValueConst val)
-{
-    return JS_ToNumberFree(ctx, JS_DupValue(ctx, val));
-}
-
-static __attribute__((unused)) JSValue JS_ToIntegerFree(JSContext *ctx, JSValue val)
-{
-    uint32_t tag;
-    JSValue ret;
-
- redo:
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-        ret = JS_NewInt32(ctx, JS_VALUE_GET_INT(val));
-        break;
-    case JS_TAG_FLOAT64:
-        {
-            double d = JS_VALUE_GET_FLOAT64(val);
-            if (isnan(d)) {
-                ret = JS_NewInt32(ctx, 0);
-            } else {
-                /* convert -0 to +0 */
-                /* XXX: should not be done here ? */
-                d = trunc(d) + 0.0;
-                ret = JS_NewFloat64(ctx, d);
-            }
-        }
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-        if (!is_bignum_mode(ctx))
-            goto to_number;
-        ret = val;
-        break;
-    case JS_TAG_BIG_FLOAT:
-        {
-            bf_t a_s, *a, r_s, *r = &r_s;
-            BOOL is_float, is_nan;
-
-            a = JS_ToBigFloat(ctx, &is_float, &a_s, val);
-            if (!bf_is_finite(a)) {
-                is_nan = bf_is_nan(a);
-                if (is_nan)
-                    ret = JS_NewInt32(ctx, 0);
-                else
-                    ret = JS_DupValue(ctx, val);
-            } else {
-                bf_init(ctx->bf_ctx, r);
-                bf_set(r, a);
-                bf_rint(r, BF_PREC_INF, BF_RNDZ);
-                ret = JS_NewBigInt(ctx, r);
-            }
-            if (a == &a_s)
-                bf_delete(a);
-            JS_FreeValue(ctx, val);
-        }
-        break;
-#endif
-    default:
-#ifdef CONFIG_BIGNUM
-    to_number:
-#endif
-        val = JS_ToNumberFree(ctx, val);
-        if (JS_IsException(val))
-            return val;
-        goto redo;
-    }
-    return ret;
-}
-
-/* Note: the integer value is satured to 32 bits */
-static int JS_ToInt32SatFree(JSContext *ctx, int *pres, JSValue val)
-{
-    uint32_t tag;
-    int ret;
-
- redo:
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-        ret = JS_VALUE_GET_INT(val);
-        break;
-    case JS_TAG_EXCEPTION:
-        *pres = 0;
-        return -1;
-    case JS_TAG_FLOAT64:
-        {
-            double d = JS_VALUE_GET_FLOAT64(val);
-            if (isnan(d)) {
-                ret = 0;
-            } else {
-                if (d < INT32_MIN)
-                    ret = INT32_MIN;
-                else if (d > INT32_MAX)
-                    ret = INT32_MAX;
-                else
-                    ret = (int)d;
-            }
-        }
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_FLOAT:
-    to_bf:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            bf_get_int32(&ret, &p->num, 0);
-            JS_FreeValue(ctx, val);
-        }
-        break;
-    case JS_TAG_BIG_INT:
-        if (is_bignum_mode(ctx))
-            goto to_bf;
-        /* fall thru */
-#endif
-    default:
-        val = JS_ToNumberFree(ctx, val);
-        if (JS_IsException(val)) {
-            *pres = 0;
-            return -1;
-        }
-        goto redo;
-    }
-    *pres = ret;
-    return 0;
-}
-
-int JS_ToInt32Sat(JSContext *ctx, int *pres, JSValueConst val)
-{
-    return JS_ToInt32SatFree(ctx, pres, JS_DupValue(ctx, val));
-}
-
-int JS_ToInt32Clamp(JSContext *ctx, int *pres, JSValueConst val,
-                    int min, int max, int min_offset)
-{
-    int res = JS_ToInt32SatFree(ctx, pres, JS_DupValue(ctx, val));
-    if (res == 0) {
-        if (*pres < min) {
-            *pres += min_offset;
-            if (*pres < min)
-                *pres = min;
-        } else {
-            if (*pres > max)
-                *pres = max;
-        }
-    }
-    return res;
-}
-
-static int JS_ToInt64SatFree(JSContext *ctx, int64_t *pres, JSValue val)
-{
-    uint32_t tag;
-
- redo:
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-        *pres = JS_VALUE_GET_INT(val);
-        return 0;
-    case JS_TAG_EXCEPTION:
-        *pres = 0;
-        return -1;
-    case JS_TAG_FLOAT64:
-        {
-            double d = JS_VALUE_GET_FLOAT64(val);
-            if (isnan(d)) {
-                *pres = 0;
-            } else {
-                if (d < INT64_MIN)
-                    *pres = INT64_MIN;
-                else if (d > INT64_MAX)
-                    *pres = INT64_MAX;
-                else
-                    *pres = (int64_t)d;
-            }
-        }
-        return 0;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_FLOAT:
-    to_bf:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            bf_get_int64(pres, &p->num, 0);
-            JS_FreeValue(ctx, val);
-        }
-        return 0;
-    case JS_TAG_BIG_INT:
-        if (is_bignum_mode(ctx))
-            goto to_bf;
-        /* fall thru */
-#endif
-    default:
-        val = JS_ToNumberFree(ctx, val);
-        if (JS_IsException(val)) {
-            *pres = 0;
-            return -1;
-        }
-        goto redo;
-    }
-}
-
-int JS_ToInt64Sat(JSContext *ctx, int64_t *pres, JSValueConst val)
-{
-    return JS_ToInt64SatFree(ctx, pres, JS_DupValue(ctx, val));
-}
-
-int JS_ToInt64Clamp(JSContext *ctx, int64_t *pres, JSValueConst val,
-                    int64_t min, int64_t max, int64_t neg_offset)
-{
-    int res = JS_ToInt64SatFree(ctx, pres, JS_DupValue(ctx, val));
-    if (res == 0) {
-        if (*pres < 0)
-            *pres += neg_offset;
-        if (*pres < min)
-            *pres = min;
-        else if (*pres > max)
-            *pres = max;
-    }
-    return res;
-}
-
-/* Same as JS_ToInt32Free() but with a 64 bit result. Return (<0, 0)
-   in case of exception */
-static int JS_ToInt64Free(JSContext *ctx, int64_t *pres, JSValue val)
-{
-    uint32_t tag;
-    int64_t ret;
-
- redo:
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-        ret = JS_VALUE_GET_INT(val);
-        break;
-    case JS_TAG_FLOAT64:
-        {
-            JSFloat64Union u;
-            double d;
-            int e;
-            d = JS_VALUE_GET_FLOAT64(val);
-            u.d = d;
-            /* we avoid doing fmod(x, 2^64) */
-            e = (u.u64 >> 52) & 0x7ff;
-            if (likely(e <= (1023 + 62))) {
-                /* fast case */
-                ret = (int64_t)d;
-            } else if (e <= (1023 + 62 + 53)) {
-                uint64_t v;
-                /* remainder modulo 2^64 */
-                v = (u.u64 & (((uint64_t)1 << 52) - 1)) | ((uint64_t)1 << 52);
-                ret = v << ((e - 1023) - 52);
-                /* take the sign into account */
-                if (u.u64 >> 63)
-                    ret = -ret;
-            } else {
-                ret = 0; /* also handles NaN and +inf */
-            }
-        }
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_FLOAT:
-    to_bf:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            bf_get_int64(&ret, &p->num, BF_GET_INT_MOD);
-            JS_FreeValue(ctx, val);
-        }
-        break;
-    case JS_TAG_BIG_INT:
-        if (is_bignum_mode(ctx))
-            goto to_bf;
-        /* fall thru */
-#endif
-    default:
-        val = JS_ToNumberFree(ctx, val);
-        if (JS_IsException(val)) {
-            *pres = 0;
-            return -1;
-        }
-        goto redo;
-    }
-    *pres = ret;
-    return 0;
-}
-
-int JS_ToInt64(JSContext *ctx, int64_t *pres, JSValueConst val)
-{
-    return JS_ToInt64Free(ctx, pres, JS_DupValue(ctx, val));
-}
-
-/* return (<0, 0) in case of exception */
-static int JS_ToInt32Free(JSContext *ctx, int32_t *pres, JSValue val)
-{
-    uint32_t tag;
-    int32_t ret;
-
- redo:
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-        ret = JS_VALUE_GET_INT(val);
-        break;
-    case JS_TAG_FLOAT64:
-        {
-            JSFloat64Union u;
-            double d;
-            int e;
-            d = JS_VALUE_GET_FLOAT64(val);
-            u.d = d;
-            /* we avoid doing fmod(x, 2^32) */
-            e = (u.u64 >> 52) & 0x7ff;
-            if (likely(e <= (1023 + 30))) {
-                /* fast case */
-                ret = (int32_t)d;
-            } else if (e <= (1023 + 30 + 53)) {
-                uint64_t v;
-                /* remainder modulo 2^32 */
-                v = (u.u64 & (((uint64_t)1 << 52) - 1)) | ((uint64_t)1 << 52);
-                v = v << ((e - 1023) - 52 + 32);
-                ret = v >> 32;
-                /* take the sign into account */
-                if (u.u64 >> 63)
-                    ret = -ret;
-            } else {
-                ret = 0; /* also handles NaN and +inf */
-            }
-        }
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_FLOAT:
-    to_bf:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            bf_get_int32(&ret, &p->num, BF_GET_INT_MOD);
-            JS_FreeValue(ctx, val);
-        }
-        break;
-    case JS_TAG_BIG_INT:
-        if (is_bignum_mode(ctx))
-            goto to_bf;
-        /* fall thru */
-#endif
-    default:
-        val = JS_ToNumberFree(ctx, val);
-        if (JS_IsException(val)) {
-            *pres = 0;
-            return -1;
-        }
-        goto redo;
-    }
-    *pres = ret;
-    return 0;
-}
-
-int JS_ToInt32(JSContext *ctx, int32_t *pres, JSValueConst val)
-{
-    return JS_ToInt32Free(ctx, pres, JS_DupValue(ctx, val));
-}
-
-static inline int JS_ToUint32Free(JSContext *ctx, uint32_t *pres, JSValue val)
-{
-    return JS_ToInt32Free(ctx, (int32_t *)pres, val);
-}
-
-static int JS_ToUint8ClampFree(JSContext *ctx, int32_t *pres, JSValue val)
-{
-    uint32_t tag;
-    int res;
-
- redo:
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-        res = JS_VALUE_GET_INT(val);
-#ifdef CONFIG_BIGNUM
-    int_clamp:
-#endif
-        res = max_int(0, min_int(255, res));
-        break;
-    case JS_TAG_FLOAT64:
-        {
-            double d = JS_VALUE_GET_FLOAT64(val);
-            if (isnan(d)) {
-                res = 0;
-            } else {
-                if (d < 0)
-                    res = 0;
-                else if (d > 255)
-                    res = 255;
-                else
-                    res = lrint(d);
-            }
-        }
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            if (!is_bignum_mode(ctx))
-                goto to_number;
-            bf_get_int32(&res, &p->num, 0);
-            JS_FreeValue(ctx, val);
-        }
-        goto int_clamp;
-    case JS_TAG_BIG_FLOAT:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            bf_t r_s, *r = &r_s;
-            bf_init(ctx->bf_ctx, r);
-            bf_set(r, &p->num);
-            bf_rint(r, BF_PREC_INF, BF_RNDN);
-            bf_get_int32(&res, r, 0);
-            bf_delete(r);
-            JS_FreeValue(ctx, val);
-        }
-        goto int_clamp;
-#endif
-    default:
-#ifdef CONFIG_BIGNUM
-    to_number:
-#endif
-        val = JS_ToNumberFree(ctx, val);
-        if (JS_IsException(val)) {
-            *pres = 0;
-            return -1;
-        }
-        goto redo;
-    }
-    *pres = res;
-    return 0;
-}
-
-static __exception int JS_ToArrayLengthFree(JSContext *ctx, uint32_t *plen,
-                                            JSValue val)
-{
-    uint32_t tag, len;
-
- redo:
-    tag = JS_VALUE_GET_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-        {
-            int v;
-            v = JS_VALUE_GET_INT(val);
-            if (v < 0)
-                goto fail;
-            len = v;
-        }
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-    case JS_TAG_BIG_FLOAT:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            bf_t a;
-            BOOL res;
-            bf_get_int32((int32_t *)&len, &p->num, BF_GET_INT_MOD);
-            bf_init(ctx->bf_ctx, &a);
-            bf_set_ui(&a, len);
-            res = bf_cmp_eq(&a, &p->num);
-            bf_delete(&a);
-            JS_FreeValue(ctx, val);
-            if (!res)
-                goto fail;
-        }
-        break;
-#endif
-    default:
-        if (JS_TAG_IS_FLOAT64(tag)) {
-            double d;
-            d = JS_VALUE_GET_FLOAT64(val);
-            len = (uint32_t)d;
-            if (len != d) {
-            fail:
-                JS_ThrowRangeError(ctx, "invalid array length");
-                return -1;
-            }
-        } else {
-            val = JS_ToNumberFree(ctx, val);
-            if (JS_IsException(val))
-                return -1;
-            goto redo;
-        }
-        break;
-    }
-    *plen = len;
-    return 0;
-}
-
-#define MAX_SAFE_INTEGER (((int64_t)1 << 53) - 1)
-
-int JS_ToIndex(JSContext *ctx, uint64_t *plen, JSValueConst val)
-{
-    int64_t v;
-    if (JS_ToInt64Sat(ctx, &v, val))
-        return -1;
-    if (v < 0 || v > MAX_SAFE_INTEGER) {
-        JS_ThrowRangeError(ctx, "invalid array index");
-        *plen = 0;
-        return -1;
-    }
-    *plen = v;
-    return 0;
-}
-
-/* convert a value to a length between 0 and MAX_SAFE_INTEGER.
-   return -1 for exception */
-static __exception int JS_ToLengthFree(JSContext *ctx, int64_t *plen,
-                                       JSValue val)
-{
-    int res = JS_ToInt64Clamp(ctx, plen, val, 0, MAX_SAFE_INTEGER, 0);
-    JS_FreeValue(ctx, val);
-    return res;
-}
-
-/* Note: can return an exception */
-/* XXX: bignum case */
-static int JS_NumberIsInteger(JSContext *ctx, JSValueConst val)
-{
-    double d;
-    if (!JS_IsNumber(val))
-        return FALSE;
-    if (unlikely(JS_ToFloat64(ctx, &d, val)))
-        return -1;
-    return isfinite(d) && floor(d) == d;
-}
-
-static BOOL JS_NumberIsNegativeOrMinusZero(JSContext *ctx, JSValueConst val)
-{
-    uint32_t tag;
-
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-        {
-            int v;
-            v = JS_VALUE_GET_INT(val);
-            return (v < 0);
-        }
-    case JS_TAG_FLOAT64:
-        {
-            JSFloat64Union u;
-            u.d = JS_VALUE_GET_FLOAT64(val);
-            return (u.u64 >> 63);
-        }
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            /* Note: integer zeros are not necessarily positive */
-            return p->num.sign && !bf_is_zero(&p->num);
-        }
-    case JS_TAG_BIG_FLOAT:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            return p->num.sign;
-        }
-        break;
-#endif
-    default:
-        return FALSE;
-    }
-}
-
-#ifdef CONFIG_BIGNUM
-
-static JSValue js_ftoa(JSContext *ctx, JSValueConst val1, int radix,
-                       limb_t prec, bf_flags_t flags)
-{
-    JSValue val, ret;
-    bf_t a_s, *a;
-    BOOL is_float;
-    char *str;
-    int saved_sign;
-
-    val = JS_ToNumeric(ctx, val1);
-    if (JS_IsException(val))
-        return val;
-    a = JS_ToBigFloat(ctx, &is_float, &a_s, val);
-    saved_sign = a->sign;
-    if (a->expn == BF_EXP_ZERO)
-        a->sign = 0;
-    flags |= BF_FTOA_JS_QUIRKS;
-    if ((flags & BF_FTOA_FORMAT_MASK) == BF_FTOA_FORMAT_FREE_MIN) {
-        /* Note: for floating point numbers with a radix which is not
-           a power of two, the current precision is used to compute
-           the number of digits. For integers, the full precision is
-           always returned. */
-        if (is_float || (flags & BF_FTOA_FORCE_EXP)) {
-            if ((radix & (radix - 1)) != 0) {
-                bf_t r_s, *r = &r_s;
-                int prec, flags1;
-                /* must round first */
-                if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_FLOAT) {
-                    prec = ctx->fp_env.prec;
-                    flags1 = ctx->fp_env.flags &
-                        (BF_FLAG_SUBNORMAL | (BF_EXP_BITS_MASK << BF_EXP_BITS_SHIFT));
-                } else {
-                    prec = 53;
-                    flags1 = bf_set_exp_bits(11) | BF_FLAG_SUBNORMAL;
-                }
-                bf_init(ctx->bf_ctx, r);
-                bf_set(r, a);
-                bf_round(r, prec, flags1 | BF_RNDN);
-                bf_ftoa(&str, r, radix, prec, flags1 | flags);
-                bf_delete(r);
-            } else {
-                bf_ftoa(&str, a, radix, BF_PREC_INF, flags);
-            }
-        } else {
-            bf_ftoa(&str, a, radix, 0, BF_RNDZ | BF_FTOA_FORMAT_FRAC | BF_FTOA_JS_QUIRKS);
-        }
-    } else {
-        bf_ftoa(&str, a, radix, prec, flags);
-    }
-    a->sign = saved_sign;
-    if (a == &a_s)
-        bf_delete(a);
-    JS_FreeValue(ctx, val);
-    ret = JS_NewString(ctx, str);
-    bf_realloc(ctx->bf_ctx, str, 0);
-    return ret;
-}
-
-#else /* !CONFIG_BIGNUM */
-
-/* 2 <= base <= 36 */
-static char *i64toa(char *buf_end, int64_t n, unsigned int base)
-{
-    char *q = buf_end;
-    int digit, is_neg;
-
-    is_neg = 0;
-    if (n < 0) {
-        is_neg = 1;
-        n = -n;
-    }
-    *--q = '\0';
-    do {
-        digit = (uint64_t)n % base;
-        n = (uint64_t)n / base;
-        if (digit < 10)
-            digit += '0';
-        else
-            digit += 'a' - 10;
-        *--q = digit;
-    } while (n != 0);
-    if (is_neg)
-        *--q = '-';
-    return q;
-}
-
-/* buf1 contains the printf result */
-static void js_ecvt1(double d, int n_digits, int *decpt, int *sign, char *buf,
-                     int rounding_mode, char *buf1, int buf1_size)
-{
-    if (rounding_mode != FE_TONEAREST)
-        fesetround(rounding_mode);
-    snprintf(buf1, buf1_size, "%+.*e", n_digits - 1, d);
-    if (rounding_mode != FE_TONEAREST)
-        fesetround(FE_TONEAREST);
-    *sign = (buf1[0] == '-');
-    /* mantissa */
-    buf[0] = buf1[1];
-    if (n_digits > 1)
-        memcpy(buf + 1, buf1 + 3, n_digits - 1);
-    buf[n_digits] = '\0';
-    /* exponent */
-    *decpt = atoi(buf1 + n_digits + 2 + (n_digits > 1)) + 1;
-}
-
-/* maximum buffer size for js_dtoa */
-#define JS_DTOA_BUF_SIZE 128
-
-/* needed because ecvt usually limits the number of digits to
-   17. Return the number of digits. */
-static int js_ecvt(double d, int n_digits, int *decpt, int *sign, char *buf,
-                   BOOL is_fixed)
-{
-    int rounding_mode;
-    char buf_tmp[JS_DTOA_BUF_SIZE];
-
-    if (!is_fixed) {
-        unsigned int n_digits_min, n_digits_max;
-        /* find the minimum amount of digits (XXX: inefficient but simple) */
-        n_digits_min = 1;
-        n_digits_max = 17;
-        while (n_digits_min < n_digits_max) {
-            n_digits = (n_digits_min + n_digits_max) / 2;
-            js_ecvt1(d, n_digits, decpt, sign, buf, FE_TONEAREST,
-                     buf_tmp, sizeof(buf_tmp));
-            if (strtod(buf_tmp, NULL) == d) {
-                /* no need to keep the trailing zeros */
-                while (n_digits >= 2 && buf[n_digits - 1] == '0')
-                    n_digits--;
-                n_digits_max = n_digits;
-            } else {
-                n_digits_min = n_digits + 1;
-            }
-        }
-        n_digits = n_digits_max;
-        rounding_mode = FE_TONEAREST;
-    } else {
-        rounding_mode = FE_TONEAREST;
-#ifdef CONFIG_PRINTF_RNDN
-        {
-            char buf1[JS_DTOA_BUF_SIZE], buf2[JS_DTOA_BUF_SIZE];
-            int decpt1, sign1, decpt2, sign2;
-            /* The JS rounding is specified as round to nearest ties away
-               from zero (RNDNA), but in printf the "ties" case is not
-               specified (for example it is RNDN for glibc, RNDNA for
-               Windows), so we must round manually. */
-            js_ecvt1(d, n_digits + 1, &decpt1, &sign1, buf1, FE_TONEAREST,
-                     buf_tmp, sizeof(buf_tmp));
-            /* XXX: could use 2 digits to reduce the average running time */
-            if (buf1[n_digits] == '5') {
-                js_ecvt1(d, n_digits + 1, &decpt1, &sign1, buf1, FE_DOWNWARD,
-                         buf_tmp, sizeof(buf_tmp));
-                js_ecvt1(d, n_digits + 1, &decpt2, &sign2, buf2, FE_UPWARD,
-                         buf_tmp, sizeof(buf_tmp));
-                if (memcmp(buf1, buf2, n_digits + 1) == 0 && decpt1 == decpt2) {
-                    /* exact result: round away from zero */
-                    if (sign1)
-                        rounding_mode = FE_DOWNWARD;
-                    else
-                        rounding_mode = FE_UPWARD;
-                }
-            }
-        }
-#endif /* CONFIG_PRINTF_RNDN */
-    }
-    js_ecvt1(d, n_digits, decpt, sign, buf, rounding_mode,
-             buf_tmp, sizeof(buf_tmp));
-    return n_digits;
-}
-
-static int js_fcvt1(char *buf, int buf_size, double d, int n_digits,
-                    int rounding_mode)
-{
-    int n;
-    if (rounding_mode != FE_TONEAREST)
-        fesetround(rounding_mode);
-    n = snprintf(buf, buf_size, "%.*f", n_digits, d);
-    if (rounding_mode != FE_TONEAREST)
-        fesetround(FE_TONEAREST);
-    assert(n < buf_size);
-    return n;
-}
-
-static void js_fcvt(char *buf, int buf_size, double d, int n_digits)
-{
-    int rounding_mode;
-    rounding_mode = FE_TONEAREST;
-#ifdef CONFIG_PRINTF_RNDN
-    {
-        int n1, n2;
-        char buf1[JS_DTOA_BUF_SIZE];
-        char buf2[JS_DTOA_BUF_SIZE];
-
-        /* The JS rounding is specified as round to nearest ties away from
-           zero (RNDNA), but in printf the "ties" case is not specified
-           (for example it is RNDN for glibc, RNDNA for Windows), so we
-           must round manually. */
-        n1 = js_fcvt1(buf1, sizeof(buf1), d, n_digits + 1, FE_TONEAREST);
-        rounding_mode = FE_TONEAREST;
-        /* XXX: could use 2 digits to reduce the average running time */
-        if (buf1[n1 - 1] == '5') {
-            n1 = js_fcvt1(buf1, sizeof(buf1), d, n_digits + 1, FE_DOWNWARD);
-            n2 = js_fcvt1(buf2, sizeof(buf2), d, n_digits + 1, FE_UPWARD);
-            if (n1 == n2 && memcmp(buf1, buf2, n1) == 0) {
-                /* exact result: round away from zero */
-                if (buf1[0] == '-')
-                    rounding_mode = FE_DOWNWARD;
-                else
-                    rounding_mode = FE_UPWARD;
-            }
-        }
-    }
-#endif /* CONFIG_PRINTF_RNDN */
-    js_fcvt1(buf, buf_size, d, n_digits, rounding_mode);
-}
-
-/* radix != 10 is only supported with flags = JS_DTOA_VAR_FORMAT */
-/* use as many digits as necessary */
-#define JS_DTOA_VAR_FORMAT   (0 << 0)
-/* use n_digits significant digits (1 <= n_digits <= 101) */
-#define JS_DTOA_FIXED_FORMAT (1 << 0)
-/* force fractional format: [-]dd.dd with n_digits fractional digits */
-#define JS_DTOA_FRAC_FORMAT  (2 << 0)
-/* force exponential notation either in fixed or variable format */
-#define JS_DTOA_FORCE_EXP    (1 << 2)
-
-/* XXX: slow and maybe not fully correct
-   XXX: radix != 10 is only supported for small integers
-*/
-static void js_dtoa1(char *buf, double d, int radix, int n_digits, int flags)
-{
-    char *q;
-
-    if (!isfinite(d)) {
-        if (isnan(d)) {
-            strcpy(buf, "NaN");
-        } else {
-            q = buf;
-            if (d < 0)
-                *q++ = '-';
-            strcpy(q, "Infinity");
-        }
-    } else if (flags == JS_DTOA_VAR_FORMAT) {
-        int64_t i64;
-        char buf1[70], *ptr;
-        i64 = (int64_t)d;
-        if (d != i64 || i64 > MAX_SAFE_INTEGER || i64 < -MAX_SAFE_INTEGER)
-            goto generic_conv;
-        /* fast path for integers */
-        ptr = i64toa(buf1 + sizeof(buf1), i64, radix);
-        strcpy(buf, ptr);
-    } else {
-        if (d == 0.0)
-            d = 0.0; /* convert -0 to 0 */
-        if (flags == JS_DTOA_FRAC_FORMAT) {
-            js_fcvt(buf, JS_DTOA_BUF_SIZE, d, n_digits);
-        } else {
-            char buf1[JS_DTOA_BUF_SIZE];
-            int sign, decpt, k, n, i, p, n_max;
-            BOOL is_fixed;
-        generic_conv:
-            is_fixed = ((flags & 3) == JS_DTOA_FIXED_FORMAT);
-            if (is_fixed) {
-                n_max = n_digits;
-            } else {
-                n_max = 21;
-            }
-            /* the number has k digits (k >= 1) */
-            k = js_ecvt(d, n_digits, &decpt, &sign, buf1, is_fixed);
-            n = decpt; /* d=10^(n-k)*(buf1) i.e. d= < x.yyyy 10^(n-1) */
-            q = buf;
-            if (sign)
-                *q++ = '-';
-            if (flags & JS_DTOA_FORCE_EXP)
-                goto force_exp;
-            if (n >= 1 && n <= n_max) {
-                if (k <= n) {
-                    memcpy(q, buf1, k);
-                    q += k;
-                    for(i = 0; i < (n - k); i++)
-                        *q++ = '0';
-                    *q = '\0';
-                } else {
-                    /* k > n */
-                    memcpy(q, buf1, n);
-                    q += n;
-                    *q++ = '.';
-                    for(i = 0; i < (k - n); i++)
-                        *q++ = buf1[n + i];
-                    *q = '\0';
-                }
-            } else if (n >= -5 && n <= 0) {
-                *q++ = '0';
-                *q++ = '.';
-                for(i = 0; i < -n; i++)
-                    *q++ = '0';
-                memcpy(q, buf1, k);
-                q += k;
-                *q = '\0';
-            } else {
-            force_exp:
-                /* exponential notation */
-                *q++ = buf1[0];
-                if (k > 1) {
-                    *q++ = '.';
-                    for(i = 1; i < k; i++)
-                        *q++ = buf1[i];
-                }
-                *q++ = 'e';
-                p = n - 1;
-                if (p >= 0)
-                    *q++ = '+';
-                sprintf(q, "%d", p);
-            }
-        }
-    }
-}
-
-static JSValue js_dtoa(JSContext *ctx,
-                       double d, int radix, int n_digits, int flags)
-{
-    char buf[JS_DTOA_BUF_SIZE];
-    js_dtoa1(buf, d, radix, n_digits, flags);
-    return JS_NewString(ctx, buf);
-}
-
-#endif /* !CONFIG_BIGNUM */
-
-JSValue JS_ToStringInternal(JSContext *ctx, JSValueConst val, BOOL is_ToPropertyKey)
-{
-    uint32_t tag;
-    const char *str;
-    char buf[32];
-
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_STRING:
-        return JS_DupValue(ctx, val);
-    case JS_TAG_INT:
-        snprintf(buf, sizeof(buf), "%d", JS_VALUE_GET_INT(val));
-        str = buf;
-        goto new_string;
-    case JS_TAG_BOOL:
-        return JS_AtomToString(ctx, JS_VALUE_GET_BOOL(val) ?
-                          JS_ATOM_true : JS_ATOM_false);
-    case JS_TAG_NULL:
-        return JS_AtomToString(ctx, JS_ATOM_null);
-    case JS_TAG_UNDEFINED:
-        return JS_AtomToString(ctx, JS_ATOM_undefined);
-    case JS_TAG_EXCEPTION:
-        return JS_EXCEPTION;
-    case JS_TAG_OBJECT:
-        {
-            JSValue val1, ret;
-            val1 = JS_ToPrimitive(ctx, val, HINT_STRING);
-            if (JS_IsException(val1))
-                return val1;
-            ret = JS_ToStringInternal(ctx, val1, is_ToPropertyKey);
-            JS_FreeValue(ctx, val1);
-            return ret;
-        }
-        break;
-    case JS_TAG_FUNCTION_BYTECODE:
-        str = "[function bytecode]";
-        goto new_string;
-    case JS_TAG_SYMBOL:
-        if (is_ToPropertyKey) {
-            return JS_DupValue(ctx, val);
-        } else {
-            return JS_ThrowTypeError(ctx, "cannot convert symbol to string");
-        }
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_FLOAT64:
-    case JS_TAG_BIG_FLOAT:
-    case JS_TAG_BIG_INT:
-        return js_ftoa(ctx, val, 10, 0, BF_RNDN | BF_FTOA_FORMAT_FREE_MIN);
-#else
-    case JS_TAG_FLOAT64:
-        return js_dtoa(ctx, JS_VALUE_GET_FLOAT64(val), 10, 0,
-                       JS_DTOA_VAR_FORMAT);
-#endif
-    default:
-        str = "[unsupported type]";
-    new_string:
-        return JS_NewString(ctx, str);
-    }
-}
-
-JSValue JS_ToString(JSContext *ctx, JSValueConst val)
-{
-    return JS_ToStringInternal(ctx, val, FALSE);
-}
-
-static JSValue JS_ToStringFree(JSContext *ctx, JSValue val)
-{
-    JSValue ret;
-    ret = JS_ToString(ctx, val);
-    JS_FreeValue(ctx, val);
-    return ret;
-}
-
-static JSValue JS_ToLocaleStringFree(JSContext *ctx, JSValue val)
-{
-    if (JS_IsUndefined(val) || JS_IsNull(val))
-        return JS_ToStringFree(ctx, val);
-    return JS_InvokeFree(ctx, val, JS_ATOM_toLocaleString, 0, NULL);
-}
-
-JSValue JS_ToPropertyKey(JSContext *ctx, JSValueConst val)
-{
-    return JS_ToStringInternal(ctx, val, TRUE);
-}
-
-static JSValue JS_ToStringCheckObject(JSContext *ctx, JSValueConst val)
-{
-    uint32_t tag = JS_VALUE_GET_TAG(val);
-    if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED)
-        return JS_ThrowTypeError(ctx, "null or undefined are forbidden");
-    return JS_ToString(ctx, val);
-}
-
-static JSValue JS_ToQuotedString(JSContext *ctx, JSValueConst val1)
-{
-    JSValue val;
-    JSString *p;
-    int i;
-    uint32_t c;
-    StringBuffer b_s, *b = &b_s;
-    char buf[16];
-
-    val = JS_ToStringCheckObject(ctx, val1);
-    if (JS_IsException(val))
-        return val;
-    p = JS_VALUE_GET_STRING(val);
-
-    if (string_buffer_init(ctx, b, p->len + 2))
-        goto fail;
-
-    if (string_buffer_putc8(b, '\"'))
-        goto fail;
-    for(i = 0; i < p->len; ) {
-        c = string_getc(p, &i);
-        switch(c) {
-        case '\t':
-            c = 't';
-            goto quote;
-        case '\r':
-            c = 'r';
-            goto quote;
-        case '\n':
-            c = 'n';
-            goto quote;
-        case '\b':
-            c = 'b';
-            goto quote;
-        case '\f':
-            c = 'f';
-            goto quote;
-        case '\"':
-        case '\\':
-        quote:
-            if (string_buffer_putc8(b, '\\'))
-                goto fail;
-            if (string_buffer_putc8(b, c))
-                goto fail;
-            break;
-        default:
-            if (c < 32 || (c >= 0xd800 && c < 0xe000)) {
-                snprintf(buf, sizeof(buf), "\\u%04x", c);
-                if (string_buffer_puts8(b, buf))
-                    goto fail;
-            } else {
-                if (string_buffer_putc(b, c))
-                    goto fail;
-            }
-            break;
-        }
-    }
-    if (string_buffer_putc8(b, '\"'))
-        goto fail;
-    JS_FreeValue(ctx, val);
-    return string_buffer_end(b);
- fail:
-    JS_FreeValue(ctx, val);
-    string_buffer_free(b);
-    return JS_EXCEPTION;
-}
-
-static __attribute__((unused)) void JS_DumpObjectHeader(JSRuntime *rt)
-{
-    printf("%14s %4s %4s %14s %10s %s\n",
-           "ADDRESS", "REFS", "SHRF", "PROTO", "CLASS", "PROPS");
-}
-
-/* for debug only: dump an object without side effect */
-static __attribute__((unused)) void JS_DumpObject(JSRuntime *rt, JSObject *p)
-{
-    uint32_t i;
-    char atom_buf[ATOM_GET_STR_BUF_SIZE];
-    JSShape *sh;
-    JSShapeProperty *prs;
-    JSProperty *pr;
-    BOOL is_first = TRUE;
-
-    /* XXX: should encode atoms with special characters */
-    sh = p->shape; /* the shape can be NULL while freeing an object */
-    printf("%14p %4d ",
-           (void *)p,
-           p->header.ref_count);
-    if (sh) {
-        printf("%3d%c %14p ",
-               sh->header.ref_count,
-               " *"[sh->is_hashed],
-               (void *)sh->proto);
-    } else {
-        printf("%3s  %14s ", "-", "-");
-    }
-    printf("%10s ",
-           JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), rt->class_array[p->class_id].class_name));
-    if (p->is_exotic && p->fast_array) {
-        printf("[ ");
-        for(i = 0; i < p->u.array.count; i++) {
-            if (i != 0)
-                printf(", ");
-            switch (p->class_id) {
-            case JS_CLASS_ARRAY:
-            case JS_CLASS_ARGUMENTS:
-                JS_DumpValueShort(rt, p->u.array.u.values[i]);
-                break;
-            case JS_CLASS_UINT8C_ARRAY ... JS_CLASS_FLOAT64_ARRAY:
-                {
-                    int size = 1 << typed_array_size_log2(p->class_id);
-                    const uint8_t *b = p->u.array.u.uint8_ptr + i * size;
-                    while (size-- > 0)
-                        printf("%02X", *b++);
-                }
-                break;
-            }
-        }
-        printf(" ] ");
-    }
-
-    if (sh) {
-        printf("{ ");
-        for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) {
-            if (prs->atom != JS_ATOM_NULL) {
-                pr = &p->prop[i];
-                if (!is_first)
-                    printf(", ");
-                printf("%s: ",
-                       JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), prs->atom));
-                if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
-                    printf("[getset %p %p]", (void *)pr->u.getset.getter,
-                           (void *)pr->u.getset.setter);
-                } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
-                    printf("[varref %p]", (void *)pr->u.var_ref);
-                } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
-                    printf("[autoinit %p %p]", (void *)pr->u.init.init_func,
-                           (void *)pr->u.init.opaque);
-                } else {
-                    JS_DumpValueShort(rt, pr->u.value);
-                }
-                is_first = FALSE;
-            }
-        }
-        printf(" }");
-    }
-    
-    if (js_class_has_bytecode(p->class_id)) {
-        JSFunctionBytecode *b = p->u.func.function_bytecode;
-        JSVarRef **var_refs;
-        if (b->closure_var_count) {
-            var_refs = p->u.func.var_refs;
-            printf(" Closure:");
-            for(i = 0; i < b->closure_var_count; i++) {
-                printf(" ");
-                JS_DumpValueShort(rt, var_refs[i]->value);
-            }
-            if (p->u.func.home_object) {
-                printf(" HomeObject: ");
-                JS_DumpValueShort(rt, JS_MKPTR(JS_TAG_OBJECT, p->u.func.home_object));
-            }
-        }
-    }
-    printf("\n");
-}
-
-static __attribute__((unused)) void JS_DumpValueShort(JSRuntime *rt,
-                                                      JSValueConst val)
-{
-    uint32_t tag = JS_VALUE_GET_NORM_TAG(val);
-    const char *str;
-
-    switch(tag) {
-    case JS_TAG_INT:
-        printf("%d", JS_VALUE_GET_INT(val));
-        break;
-    case JS_TAG_BOOL:
-        if (JS_VALUE_GET_BOOL(val))
-            str = "true";
-        else
-            str = "false";
-        goto print_str;
-    case JS_TAG_NULL:
-        str = "null";
-        goto print_str;
-    case JS_TAG_EXCEPTION:
-        str = "exception";
-        goto print_str;
-    case JS_TAG_UNINITIALIZED:
-        str = "uninitialized";
-        goto print_str;
-    case JS_TAG_UNDEFINED:
-        str = "undefined";
-    print_str:
-        printf("%s", str);
-        break;
-    case JS_TAG_FLOAT64:
-        printf("%.14g", JS_VALUE_GET_FLOAT64(val));
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            char *str;
-            bf_ftoa(&str, &p->num, 10, 0,
-                    BF_RNDZ | BF_FTOA_FORMAT_FRAC);
-            printf("%sn", str);
-            bf_realloc(&rt->bf_ctx, str, 0);
-        }
-        break;
-    case JS_TAG_BIG_FLOAT:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            char *str;
-            bf_ftoa(&str, &p->num, 16, BF_PREC_INF,
-                    BF_RNDZ | BF_FTOA_FORMAT_FREE | BF_FTOA_ADD_PREFIX);
-            printf("%sl", str);
-            bf_realloc(&rt->bf_ctx, str, 0);
-        }
-        break;
-#endif
-    case JS_TAG_STRING:
-        {
-            JSString *p;
-            p = JS_VALUE_GET_STRING(val);
-            JS_DumpString(rt, p);
-        }
-        break;
-    case JS_TAG_FUNCTION_BYTECODE:
-        {
-            JSFunctionBytecode *b = JS_VALUE_GET_PTR(val);
-            char buf[ATOM_GET_STR_BUF_SIZE];
-            printf("[bytecode %s]", JS_AtomGetStrRT(rt, buf, sizeof(buf), b->func_name));
-        }
-        break;
-    case JS_TAG_OBJECT:
-        {
-            JSObject *p = JS_VALUE_GET_OBJ(val);
-            JSAtom atom = rt->class_array[p->class_id].class_name;
-            char atom_buf[ATOM_GET_STR_BUF_SIZE];
-            printf("[%s %p]",
-                   JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), atom), (void *)p);
-        }
-        break;
-    case JS_TAG_SYMBOL:
-        {
-            JSAtomStruct *p = JS_VALUE_GET_PTR(val);
-            char atom_buf[ATOM_GET_STR_BUF_SIZE];
-            printf("Symbol(%s)",
-                   JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), js_get_atom_index(rt, p)));
-        }
-        break;
-    case JS_TAG_MODULE:
-        printf("[module]");
-        break;
-    case JS_TAG_VAR_REF:
-        printf("[var_ref]");
-        break;
-    default:
-        printf("[unknown tag %d]", tag);
-        break;
-    }
-}
-
-static __attribute__((unused)) void JS_DumpValue(JSContext *ctx,
-                                                 JSValueConst val)
-{
-    JS_DumpValueShort(ctx->rt, val);
-}
-
-static __attribute__((unused)) void JS_PrintValue(JSContext *ctx,
-                                                  const char *str,
-                                                  JSValueConst val)
-{
-    printf("%s=", str);
-    JS_DumpValueShort(ctx->rt, val);
-    printf("\n");
-}
-
-/* return -1 if exception (proxy case) or TRUE/FALSE */
-int JS_IsArray(JSContext *ctx, JSValueConst val)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(val) == JS_TAG_OBJECT) {
-        p = JS_VALUE_GET_OBJ(val);
-        if (unlikely(p->class_id == JS_CLASS_PROXY))
-            return js_proxy_isArray(ctx, val);
-        else
-            return p->class_id == JS_CLASS_ARRAY;
-    } else {
-        return FALSE;
-    }
-}
-
-static double js_pow(double a, double b)
-{
-    if (unlikely(!isfinite(b)) && fabs(a) == 1) {
-        /* not compatible with IEEE 754 */
-        return JS_FLOAT64_NAN;
-    } else {
-        return pow(a, b);
-    }
-}
-
-#ifdef CONFIG_BIGNUM
-
-JSValue JS_NewBigInt64(JSContext *ctx, int64_t v)
-{
-    BOOL is_bignum = is_bignum_mode(ctx);
-    if (is_bignum && v == (int32_t)v) {
-        return JS_NewInt32(ctx, v);
-    } else {
-        bf_t a_s, *a = &a_s;
-        bf_init(ctx->bf_ctx, a);
-        bf_set_si(a, v);
-        return JS_NewBigInt2(ctx, a, TRUE);
-    }
-}
-
-JSValue JS_NewBigUint64(JSContext *ctx, uint64_t v)
-{
-    BOOL is_bignum = is_bignum_mode(ctx);
-    if (is_bignum && v == (int32_t)v) {
-        return JS_NewInt32(ctx, v);
-    } else {
-        bf_t a_s, *a = &a_s;
-        bf_init(ctx->bf_ctx, a);
-        bf_set_ui(a, v);
-        return JS_NewBigInt2(ctx, a, TRUE);
-    }
-}
-
-/* if the returned bigfloat is allocated it is equal to
-   'buf'. Otherwise it is a pointer to the bigfloat in 'val'. */
-static bf_t *JS_ToBigFloat(JSContext *ctx, BOOL *pis_float, bf_t *buf,
-                           JSValueConst val)
-{
-    uint32_t tag;
-    bf_t *r;
-    BOOL is_float;
-    JSBigFloat *p;
-
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-        r = buf;
-        bf_init(ctx->bf_ctx, r);
-        bf_set_si(r, JS_VALUE_GET_INT(val));
-        is_float = FALSE;
-        break;
-    case JS_TAG_FLOAT64:
-        r = buf;
-        bf_init(ctx->bf_ctx, r);
-        bf_set_float64(r, JS_VALUE_GET_FLOAT64(val));
-        is_float = TRUE;
-        break;
-    case JS_TAG_BIG_INT:
-        is_float = FALSE;
-        goto get_ptr;
-    case JS_TAG_BIG_FLOAT:
-        is_float = TRUE;
-    get_ptr:
-        p = JS_VALUE_GET_PTR(val);
-        r = &p->num;
-        break;
-    case JS_TAG_UNDEFINED:
-    default:
-        r = buf;
-        bf_init(ctx->bf_ctx, r);
-        bf_set_nan(r);
-        is_float = TRUE;
-        break;
-    }
-    *pis_float = is_float;
-    return r;
-}
-
-/* return NaN if bad bigint literal */
-static JSValue JS_StringToBigInt(JSContext *ctx, JSValue val)
-{
-    const char *str;
-    const char *p;
-    int flags, err;
-
-    str = JS_ToCString(ctx, val);
-    JS_FreeValue(ctx, val);
-    if (!str)
-        return JS_EXCEPTION;
-    flags = BF_ATOF_BIN_OCT | BF_ATOF_NO_PREFIX_AFTER_SIGN |
-        BF_ATOF_JS_QUIRKS | BF_ATOF_INT_ONLY | BF_ATOF_INT_PREC_INF;
-    if (!is_bignum_mode(ctx))
-        flags |= BF_ATOF_BIG_INT;
-    val = js_atof(ctx, str, &p, 0, flags);
-    p += skip_spaces(p);
-    err = (*p != '\0');
-    JS_FreeCString(ctx, str);
-    if (err) {
-        JS_FreeValue(ctx, val);
-        val = JS_NAN;
-    }
-    return val;
-}
-
-static JSValue JS_StringToBigIntErr(JSContext *ctx, JSValue val)
-{
-    val = JS_StringToBigInt(ctx, val);
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_BIG_INT) {
-        JS_FreeValue(ctx, val);
-        return JS_ThrowSyntaxError(ctx, "invalid bigint literal");
-    }
-    return val;
-}
-
-/* if the returned bigfloat is allocated it is equal to
-   'buf'. Otherwise it is a pointer to the bigfloat in 'val'. */
-static bf_t *JS_ToBigIntFree(JSContext *ctx, bf_t *buf, JSValue val)
-{
-    uint32_t tag;
-    bf_t *r;
-    JSBigFloat *p;
-
- redo:
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-        if (!is_bignum_mode(ctx))
-            goto fail;
-        /* fall tru */
-    case JS_TAG_BOOL:
-        r = buf;
-        bf_init(ctx->bf_ctx, r);
-        bf_set_si(r, JS_VALUE_GET_INT(val));
-        break;
-    case JS_TAG_FLOAT64:
-        {
-            double d = JS_VALUE_GET_FLOAT64(val);
-            if (!is_bignum_mode(ctx))
-                goto fail;
-            if (!isfinite(d))
-                goto fail;
-            r = buf;
-            bf_init(ctx->bf_ctx, r);
-            d = trunc(d);
-            bf_set_float64(r, d);
-        }
-        break;
-    case JS_TAG_BIG_INT:
-        p = JS_VALUE_GET_PTR(val);
-        r = &p->num;
-        break;
-    case JS_TAG_BIG_FLOAT:
-        if (!is_bignum_mode(ctx))
-            goto fail;
-        p = JS_VALUE_GET_PTR(val);
-        if (!bf_is_finite(&p->num))
-            goto fail;
-        r = buf;
-        bf_init(ctx->bf_ctx, r);
-        bf_set(r, &p->num);
-        bf_rint(r, BF_PREC_INF, BF_RNDZ);
-        JS_FreeValue(ctx, val);
-        break;
-    case JS_TAG_STRING:
-        val = JS_StringToBigIntErr(ctx, val);
-        if (JS_IsException(val))
-            return NULL;
-        goto redo;
-    case JS_TAG_OBJECT:
-        val = JS_ToPrimitiveFree(ctx, val,
-                                 is_bignum_mode(ctx) ? HINT_INTEGER : HINT_NUMBER);
-        if (JS_IsException(val))
-            return NULL;
-        goto redo;
-    default:
-    fail:
-        JS_FreeValue(ctx, val);
-        JS_ThrowTypeError(ctx, "cannot convert to bigint");
-        return NULL;
-    }
-    return r;
-}
-
-static bf_t *JS_ToBigInt(JSContext *ctx, bf_t *buf, JSValueConst val)
-{
-    return JS_ToBigIntFree(ctx, buf, JS_DupValue(ctx, val));
-}
-
-static __attribute__((unused)) JSValue JS_ToBigIntValueFree(JSContext *ctx, JSValue val)
-{
-    if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_INT) {
-        return val;
-    } else {
-        bf_t a_s, *a;
-        a = JS_ToBigIntFree(ctx, &a_s, val);
-        if (!a)
-            return JS_EXCEPTION;
-        return JS_NewBigInt2(ctx, a, TRUE);
-    }
-}
-
-/* free the bf_t allocated by JS_ToBigInt */
-static void JS_FreeBigInt(JSContext *ctx, bf_t *a, bf_t *buf)
-{
-    if (a == buf) {
-        bf_delete(a);
-    } else {
-        JSBigFloat *p = (JSBigFloat *)((uint8_t *)a -
-                                       offsetof(JSBigFloat, num));
-        JS_FreeValue(ctx, JS_MKPTR(JS_TAG_BIG_FLOAT, p));
-    }
-}
-
-/* XXX: merge with JS_ToInt64Free with a specific flag */
-static int JS_ToBigInt64Free(JSContext *ctx, int64_t *pres, JSValue val)
-{
-    bf_t a_s, *a;
-
-    a = JS_ToBigIntFree(ctx, &a_s, val);
-    if (!a) {
-        *pres = 0;
-        return -1;
-    }
-    bf_get_int64(pres, a, BF_GET_INT_MOD);
-    JS_FreeBigInt(ctx, a, &a_s);
-    return 0;
-}
-
-int JS_ToBigInt64(JSContext *ctx, int64_t *pres, JSValueConst val)
-{
-    return JS_ToBigInt64Free(ctx, pres, JS_DupValue(ctx, val));
-}
-
-static JSBigFloat *js_new_bf(JSContext *ctx)
-{
-    JSBigFloat *p;
-    p = js_mallocz(ctx, sizeof(*p));
-    if (!p)
-        return NULL;
-    p->header.ref_count = 1;
-    bf_init(ctx->bf_ctx, &p->num);
-    return p;
-}
-
-/* WARNING: 'a' is freed */
-static JSValue JS_NewBigFloat(JSContext *ctx, bf_t *a)
-{
-    JSValue ret;
-    JSBigFloat *p;
-
-    p = js_new_bf(ctx);
-    p->num = *a;
-    ret = JS_MKPTR(JS_TAG_BIG_FLOAT, p);
-    return ret;
-}
-
-/* WARNING: 'a' is freed */
-static JSValue JS_NewBigInt2(JSContext *ctx, bf_t *a, BOOL force_bigint)
-{
-    JSValue ret;
-    JSBigFloat *p;
-    int32_t v;
-
-    if (!force_bigint && bf_get_int32(&v, a, 0) == 0) {
-        /* can fit in an int32 */
-        ret = JS_NewInt32(ctx, v);
-        bf_delete(a);
-    } else {
-        p = js_new_bf(ctx);
-        p->num = *a;
-        /* normalize the zero representation */
-        if (bf_is_zero(&p->num))
-            p->num.sign = 0;
-        ret = JS_MKPTR(JS_TAG_BIG_INT, p);
-    }
-    return ret;
-}
-
-static JSValue JS_NewBigInt(JSContext *ctx, bf_t *a)
-{
-    return JS_NewBigInt2(ctx, a, FALSE);
-}
-
-/* return < 0 if exception, 0 if overloading method, 1 if overloading
-   operator called */
-static __exception int js_call_binary_op_fallback(JSContext *ctx,
-                                                   JSValue *pret,
-                                                   JSValueConst op1,
-                                                   JSValueConst op2,
-                                                   OPCodeEnum op)
-{
-    JSAtom op_name;
-    JSValue method, ret, c1, c2;
-    BOOL bool_result, swap_op;
-    JSValueConst args[2];
-
-    bool_result = FALSE;
-    swap_op = FALSE;
-    c1 = JS_UNDEFINED;
-    c2 = JS_UNDEFINED;
-    switch(op) {
-    case OP_add:
-        op_name = JS_ATOM_Symbol_operatorAdd;
-        break;
-    case OP_sub:
-        op_name = JS_ATOM_Symbol_operatorSub;
-        break;
-    case OP_mul:
-        op_name = JS_ATOM_Symbol_operatorMul;
-        break;
-    case OP_div:
-    case OP_math_div:
-        op_name = JS_ATOM_Symbol_operatorDiv;
-        break;
-    case OP_mod:
-        op_name = JS_ATOM_Symbol_operatorMod;
-        break;
-    case OP_pow:
-    case OP_math_pow:
-        op_name = JS_ATOM_Symbol_operatorPow;
-        break;
-    case OP_math_mod:
-        op_name = JS_ATOM_Symbol_operatorMathMod;
-        break;
-    case OP_shl:
-        op_name = JS_ATOM_Symbol_operatorShl;
-        break;
-    case OP_sar:
-        op_name = JS_ATOM_Symbol_operatorShr;
-        break;
-    case OP_and:
-        op_name = JS_ATOM_Symbol_operatorAnd;
-        break;
-    case OP_or:
-        op_name = JS_ATOM_Symbol_operatorOr;
-        break;
-    case OP_xor:
-        op_name = JS_ATOM_Symbol_operatorXor;
-        break;
-    case OP_lt:
-        op_name = JS_ATOM_Symbol_operatorCmpLT;
-        bool_result = TRUE;
-        break;
-    case OP_lte:
-        op_name = JS_ATOM_Symbol_operatorCmpLE;
-        bool_result = TRUE;
-        break;
-    case OP_gt:
-        op_name = JS_ATOM_Symbol_operatorCmpLT;
-        bool_result = TRUE;
-        swap_op = TRUE;
-        break;
-    case OP_gte:
-        op_name = JS_ATOM_Symbol_operatorCmpLE;
-        bool_result = TRUE;
-        swap_op = TRUE;
-        break;
-    case OP_eq:
-    case OP_neq:
-        op_name = JS_ATOM_Symbol_operatorCmpEQ;
-        bool_result = TRUE;
-        break;
-    default:
-        goto fail;
-    }
-    c1 = JS_GetProperty(ctx, op1, JS_ATOM_constructor);
-    if (JS_IsException(c1))
-        goto exception;
-    c2 = JS_GetProperty(ctx, op2, JS_ATOM_constructor);
-    if (JS_IsException(c2))
-        goto exception;
-    if (JS_VALUE_GET_TAG(c1) != JS_TAG_OBJECT ||
-        JS_VALUE_GET_TAG(c2) != JS_TAG_OBJECT)
-        goto fail;
-    if (JS_VALUE_GET_OBJ(c1) == JS_VALUE_GET_OBJ(c2)) {
-        /* if same constructor, there is no ambiguity */
-        method = JS_GetProperty(ctx, c1, op_name);
-    } else {
-        JSValue val;
-        int order1, order2;
-
-        /* different constructors: we use a user-defined ordering */
-        val = JS_GetProperty(ctx, c1, JS_ATOM_Symbol_operatorOrder);
-        if (JS_IsException(val))
-            goto exception;
-        if (JS_IsUndefined(val))
-            goto undef_order;
-        if (JS_ToInt32Free(ctx, &order1, val))
-            goto exception;
-        val = JS_GetProperty(ctx, c2, JS_ATOM_Symbol_operatorOrder);
-        if (JS_IsException(val))
-            goto exception;
-        if (JS_IsUndefined(val)) {
-        undef_order:
-            JS_FreeValue(ctx, c1);
-            JS_FreeValue(ctx, c2);
-            *pret = JS_UNDEFINED;
-            return 0;
-        }
-        if (JS_ToInt32Free(ctx, &order2, val))
-            goto exception;
-        /* ambiguous priority: error */
-        if (order1 == order2) {
-            JS_ThrowTypeError(ctx, "operator_order is identical in both constructors");
-            goto exception;
-        }
-        if (order1 > order2) {
-            val = c1;
-        } else {
-            val = c2;
-        }
-        method = JS_GetProperty(ctx, val, op_name);
-    }
-    JS_FreeValue(ctx, c1);
-    JS_FreeValue(ctx, c2);
-    c1 = JS_UNDEFINED;
-    c2 = JS_UNDEFINED;
-    if (JS_IsException(method))
-        goto exception;
-    if (JS_IsUndefined(method) || JS_IsNull(method)) {
-        *pret = JS_UNDEFINED;
-        return 0;
-    }
-    if (swap_op) {
-        args[0] = op2;
-        args[1] = op1;
-    } else {
-        args[0] = op1;
-        args[1] = op2;
-    }
-    ret = JS_CallFree(ctx, method, JS_UNDEFINED, 2, args);
-    if (JS_IsException(ret))
-        goto exception;
-    if (bool_result) {
-        BOOL res = JS_ToBoolFree(ctx, ret);
-        if (op == OP_neq)
-            res ^= 1;
-        ret = JS_NewBool(ctx, res);
-    }
-    *pret = ret;
-    return 1;
- fail:
-    JS_ThrowTypeError(ctx, "invalid types for binary operator");
- exception:
-    JS_FreeValue(ctx, c1);
-    JS_FreeValue(ctx, c2);
-    *pret = JS_UNDEFINED;
-    return -1;
-}
-
-static JSValue throw_bf_exception(JSContext *ctx, int status)
-{
-    const char *str;
-    if (status & BF_ST_DIVIDE_ZERO) {
-        str = "division by zero";
-    } else if (status & BF_ST_INVALID_OP) {
-        str = "invalid operation";
-    } else {
-        str = "integer overflow";
-    }
-    return JS_ThrowRangeError(ctx, "%s", str);
-}
-
-static no_inline __exception int js_unary_arith_slow(JSContext *ctx,
-                                                     JSValue *sp,
-                                                     OPCodeEnum op)
-{
-    JSValue op1, val, method;
-    bf_t a_s, r_s, *r = &r_s, *a;
-    BOOL is_float, is_legacy;
-    JSAtom op_name;
-    int ret, v;
-    uint32_t tag;
-
-    op1 = sp[-1];
-    /* fast path for float64 */
-    if (JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(op1)))
-        goto handle_float64;
-    if (JS_IsObject(op1)) {
-        switch(op) {
-        case OP_plus:
-            op_name = JS_ATOM_Symbol_operatorPlus;
-            break;
-        case OP_neg:
-            op_name = JS_ATOM_Symbol_operatorNeg;
-            break;
-        case OP_inc:
-            op_name = JS_ATOM_Symbol_operatorInc;
-            break;
-        case OP_dec:
-            op_name = JS_ATOM_Symbol_operatorDec;
-            break;
-        default:
-            abort();
-        }
-        method = JS_GetProperty(ctx, op1, op_name);
-        if (JS_IsException(method))
-            return -1;
-        if (JS_IsUndefined(method) || JS_IsNull(method))
-            goto to_number;
-        val = JS_CallFree(ctx, method, op1, 0, NULL);
-        if (JS_IsException(val))
-            return -1;
-        JS_FreeValue(ctx, op1);
-        sp[-1] = val;
-    } else {
-    to_number:
-        op1 = JS_ToNumericFree(ctx, op1);
-        if (JS_IsException(op1))
-            goto exception;
-        is_legacy = is_bignum_mode(ctx) ^ 1;
-        tag = JS_VALUE_GET_TAG(op1);
-        switch(tag) {
-        case JS_TAG_INT:
-            {
-                int64_t v64;
-                v64 = JS_VALUE_GET_INT(op1);
-                switch(op) {
-                case OP_inc:
-                case OP_dec:
-                    v = 2 * (op - OP_dec) - 1;
-                    v64 += v;
-                    break;
-                case OP_plus:
-                    break;
-                case OP_neg:
-                    if (v64 == 0 && is_legacy) {
-                        sp[-1] = __JS_NewFloat64(ctx, -0.0);
-                        return 0;
-                    } else {
-                        v64 = -v64;
-                    }
-                    break;
-                default:
-                    abort();
-                }
-                sp[-1] = JS_NewInt64(ctx, v64);
-            }
-            break;
-        case JS_TAG_BIG_INT:
-            if (is_legacy && op == OP_plus) {
-                JS_ThrowTypeError(ctx, "bigint argument with unary +");
-                JS_FreeValue(ctx, op1);
-                goto exception;
-            }
-            a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-            bf_init(ctx->bf_ctx, r);
-            ret = 0;
-            switch(op) {
-            case OP_inc:
-            case OP_dec:
-                v = 2 * (op - OP_dec) - 1;
-                ret = bf_add_si(r, a, v, BF_PREC_INF, BF_RNDZ) & BF_ST_OVERFLOW;
-                break;
-            case OP_plus:
-                bf_set(r, a);
-                break;
-            case OP_neg:
-                bf_set(r, a);
-                bf_neg(r);
-                break;
-            default:
-                abort();
-            }
-            if (a == &a_s)
-                bf_delete(a);
-            JS_FreeValue(ctx, op1);
-            if (unlikely(ret)) {
-                bf_delete(r);
-                throw_bf_exception(ctx, ret);
-                goto exception;
-            }
-            sp[-1] = JS_NewBigInt2(ctx, r, is_legacy);
-            break;
-        case JS_TAG_BIG_FLOAT:
-            a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-            bf_init(ctx->bf_ctx, r);
-            ret = 0;
-            switch(op) {
-            case OP_inc:
-            case OP_dec:
-                v = 2 * (op - OP_dec) - 1;
-                bf_add_si(r, a, v, ctx->fp_env.prec, ctx->fp_env.flags);
-                break;
-            case OP_plus:
-                bf_set(r, a);
-                break;
-            case OP_neg:
-                bf_set(r, a);
-                bf_neg(r);
-                break;
-            default:
-                abort();
-            }
-            if (a == &a_s)
-                bf_delete(a);
-            JS_FreeValue(ctx, op1);
-            if (unlikely(ret)) {
-                bf_delete(r);
-                throw_bf_exception(ctx, ret);
-                goto exception;
-            }
-            sp[-1] = JS_NewBigFloat(ctx, r);
-            break;
-        default:
-        handle_float64:
-            {
-                double d;
-                d = JS_VALUE_GET_FLOAT64(op1);
-                switch(op) {
-                case OP_inc:
-                case OP_dec:
-                    v = 2 * (op - OP_dec) - 1;
-                    d += v;
-                    break;
-                case OP_plus:
-                    break;
-                case OP_neg:
-                    d = -d;
-                    break;
-                default:
-                    abort();
-                }
-                sp[-1] = __JS_NewFloat64(ctx, d);
-            }
-            break;
-        }
-    }
-    return 0;
- exception:
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static __exception int js_post_inc_slow(JSContext *ctx,
-                                        JSValue *sp, OPCodeEnum op)
-{
-    JSValue op1;
-
-    /* XXX: allow custom operators */
-    op1 = sp[-1];
-    op1 = JS_ToNumericFree(ctx, op1);
-    if (JS_IsException(op1)) {
-        sp[-1] = JS_UNDEFINED;
-        return -1;
-    }
-    sp[-1] = op1;
-    sp[0] = JS_DupValue(ctx, op1);
-    return js_unary_arith_slow(ctx, sp + 1, op - OP_post_dec + OP_dec);
-}
-
-static no_inline int js_not_slow(JSContext *ctx, JSValue *sp)
-{
-    JSValue op1, method, val;
-    bf_t a_s, r_s, *r = &r_s, *a;
-    int ret;
-    BOOL is_legacy;
-
-    op1 = sp[-1];
-    if (JS_IsObject(op1)) {
-        method = JS_GetProperty(ctx, op1, JS_ATOM_Symbol_operatorNot);
-        if (JS_IsException(method))
-            return -1;
-        if (JS_IsUndefined(method) || JS_IsNull(method))
-            goto to_number;
-        val = JS_CallFree(ctx, method, op1, 0, NULL);
-        if (JS_IsException(val))
-            return -1;
-        JS_FreeValue(ctx, op1);
-        sp[-1] = val;
-    } else {
-        if (JS_IsString(op1)) {
-        to_number:
-            op1 = JS_ToNumberHintFree(ctx, op1, TON_FLAG_INTEGER);
-            if (JS_IsException(op1))
-                goto exception;
-        }
-        is_legacy = is_bignum_mode(ctx) ^ 1;
-        if (!is_legacy || JS_VALUE_GET_TAG(op1) == JS_TAG_BIG_INT) {
-            a = JS_ToBigIntFree(ctx, &a_s, op1);
-            bf_init(ctx->bf_ctx, r);
-            ret = bf_add_si(r, a, 1, BF_PREC_INF, BF_RNDZ) & BF_ST_OVERFLOW;
-            bf_neg(r);
-            JS_FreeBigInt(ctx, a, &a_s);
-            if (unlikely(ret)) {
-                bf_delete(r);
-                throw_bf_exception(ctx, ret);
-                goto exception;
-            }
-            sp[-1] = JS_NewBigInt2(ctx, r, is_legacy);
-        } else {
-            int32_t v1;
-            if (unlikely(JS_ToInt32Free(ctx, &v1, op1)))
-                goto exception;
-            sp[-1] = JS_NewInt32(ctx, ~v1);
-        }
-    }
-    return 0;
- exception:
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static no_inline __exception int js_binary_arith_slow(JSContext *ctx, JSValue *sp,
-                                                      OPCodeEnum op)
-{
-    JSValue op1, op2, res;
-    BOOL is_float, is_legacy;
-    uint32_t tag1, tag2;
-    int ret, rnd_mode;
-    double d1, d2;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    tag1 = JS_VALUE_GET_NORM_TAG(op1);
-    tag2 = JS_VALUE_GET_NORM_TAG(op2);
-    /* fast path for float operations */
-    if (tag1 == JS_TAG_FLOAT64 && tag2 == JS_TAG_FLOAT64) {
-        d1 = JS_VALUE_GET_FLOAT64(op1);
-        d2 = JS_VALUE_GET_FLOAT64(op2);
-        goto handle_float64;
-    }
-
-    /* try to call an overloaded operator */
-    if ((tag1 == JS_TAG_OBJECT &&
-         (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) ||
-        (tag2 == JS_TAG_OBJECT &&
-         (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) {
-        ret = js_call_binary_op_fallback(ctx, &res, op1, op2, op);
-        if (ret != 0) {
-            JS_FreeValue(ctx, op1);
-            JS_FreeValue(ctx, op2);
-            if (ret < 0) {
-                goto exception;
-            } else {
-                sp[-2] = res;
-                return 0;
-            }
-        }
-    }
-
-    op1 = JS_ToNumericFree(ctx, op1);
-    if (JS_IsException(op1)) {
-        JS_FreeValue(ctx, op2);
-        goto exception;
-    }
-    op2 = JS_ToNumericFree(ctx, op2);
-    if (JS_IsException(op2)) {
-        JS_FreeValue(ctx, op1);
-        goto exception;
-    }
-    tag1 = JS_VALUE_GET_NORM_TAG(op1);
-    tag2 = JS_VALUE_GET_NORM_TAG(op2);
-
-    is_legacy = is_bignum_mode(ctx) ^ 1;
-    if (is_legacy && (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) &&
-        tag1 != tag2) {
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-        JS_ThrowTypeError(ctx, "both operands must be bigint");
-        goto exception;
-    }
-
-    if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) {
-        int32_t v1, v2;
-        int64_t v;
-        v1 = JS_VALUE_GET_INT(op1);
-        v2 = JS_VALUE_GET_INT(op2);
-        switch(op) {
-        case OP_sub:
-            v = (int64_t)v1 - (int64_t)v2;
-            break;
-        case OP_mul:
-            v = (int64_t)v1 * (int64_t)v2;
-            if (is_legacy && v == 0 && (v1 | v2) < 0) {
-                sp[-2] = __JS_NewFloat64(ctx, -0.0);
-                return 0;
-            }
-            break;
-        case OP_math_div:
-            goto op_fallback2;
-        case OP_div:
-            sp[-2] = __JS_NewFloat64(ctx, (double)v1 / (double)v2);
-            return 0;
-        case OP_math_mod:
-            if (unlikely(v2 == 0)) {
-                throw_bf_exception(ctx, BF_ST_DIVIDE_ZERO);
-                goto exception;
-            }
-            v = (int64_t)v1 % (int64_t)v2;
-            if (v < 0) {
-                if (v2 < 0)
-                    v -= v2;
-                else
-                    v += v2;
-            }
-            break;
-        case OP_mod:
-            if (is_legacy && (v1 < 0 || v2 <= 0)) {
-                sp[-2] = JS_NewFloat64(ctx, fmod(v1, v2));
-                return 0;
-            } else {
-                if (unlikely(v2 == 0)) {
-                    throw_bf_exception(ctx, BF_ST_DIVIDE_ZERO);
-                    goto exception;
-                }
-                v = (int64_t)v1 % (int64_t)v2;
-            }
-            break;
-        case OP_pow:
-        case OP_math_pow:
-            if (is_legacy) {
-                sp[-2] = JS_NewFloat64(ctx, js_pow(v1, v2));
-                return 0;
-            } else {
-                goto handle_bigint;
-            }
-            break;
-        default:
-            abort();
-        }
-        sp[-2] = JS_NewInt64(ctx, v);
-    } else if ((tag1 == JS_TAG_BIG_INT && (tag2 == JS_TAG_INT ||
-                                           tag2 == JS_TAG_BIG_INT)) ||
-               (tag2 == JS_TAG_BIG_INT && tag1 == JS_TAG_INT)) {
-        /* big int result */
-        bf_t a_s, b_s, r_s, *r, *a, *b;
-    handle_bigint:
-        a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-        b = JS_ToBigFloat(ctx, &is_float, &b_s, op2);
-        r = &r_s;
-        bf_init(ctx->bf_ctx, r);
-        ret = 0;
-        switch(op) {
-        case OP_sub:
-            ret = bf_sub(r, a, b, BF_PREC_INF, BF_RNDZ) & BF_ST_OVERFLOW;
-            break;
-        case OP_mul:
-            ret = bf_mul(r, a, b, BF_PREC_INF, BF_RNDZ) & BF_ST_OVERFLOW;
-            break;
-        case OP_math_div:
-            goto op_fallback;
-        case OP_div:
-            if (is_legacy) {
-                bf_t rem_s, *rem = &rem_s;
-                bf_init(ctx->bf_ctx, rem);
-                ret = bf_divrem(r, rem, a, b, BF_PREC_INF, BF_RNDZ,
-                                BF_RNDZ) & BF_ST_INVALID_OP;
-                bf_delete(rem);
-            } else {
-                bf_div(r, a, b, 53, bf_set_exp_bits(11) |
-                       BF_RNDN | BF_FLAG_SUBNORMAL);
-                goto float64_result;
-            }
-            break;
-        case OP_math_mod:
-            /* Euclidian remainder */
-            rnd_mode = BF_DIVREM_EUCLIDIAN;
-            goto do_int_mod;
-        case OP_mod:
-            rnd_mode = BF_RNDZ;
-        do_int_mod:
-            {
-                bf_t q_s, *q = &q_s;
-                bf_init(ctx->bf_ctx, q);
-                ret = bf_divrem(q, r, a, b, BF_PREC_INF, BF_RNDZ,
-                                rnd_mode) & BF_ST_INVALID_OP;
-                bf_delete(q);
-            }
-            break;
-        case OP_pow:
-        case OP_math_pow:
-            if (b->sign) {
-                if (is_legacy) {
-                    ret = BF_ST_INVALID_OP;
-                } else if (op == OP_math_pow) {
-                op_fallback:
-                    bf_delete(r);
-                    if (a == &a_s)
-                        bf_delete(a);
-                    if (b == &b_s)
-                        bf_delete(b);
-                op_fallback2:
-                    ret = js_call_binary_op_fallback(ctx, &res, op1, op2, op);
-                    JS_FreeValue(ctx, op1);
-                    JS_FreeValue(ctx, op2);
-                    if (ret < 0) {
-                        goto exception;
-                    } else if (ret == 0) {
-                        JS_ThrowTypeError(ctx, "operator must be defined for exact division or power");
-                        goto exception;
-                    }
-                    sp[-2] = res;
-                    return 0;
-                } else {
-                    double dr;
-                    bf_pow(r, a, b, 53, bf_set_exp_bits(11) |
-                           BF_RNDN | BF_FLAG_SUBNORMAL);
-                float64_result:
-                    bf_get_float64(r, &dr, BF_RNDN);
-                    bf_delete(r);
-                    if (a == &a_s)
-                        bf_delete(a);
-                    if (b == &b_s)
-                        bf_delete(b);
-                    JS_FreeValue(ctx, op1);
-                    JS_FreeValue(ctx, op2);
-                    sp[-2] = __JS_NewFloat64(ctx, dr);
-                    return 0;
-                }
-            } else {
-                ret = bf_pow(r, a, b, BF_PREC_INF, BF_RNDZ | BF_POW_JS_QUICKS) &
-                    BF_ST_OVERFLOW;
-            }
-            break;
-        default:
-            abort();
-        }
-        if (a == &a_s)
-            bf_delete(a);
-        if (b == &b_s)
-            bf_delete(b);
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-        if (unlikely(ret)) {
-            bf_delete(r);
-            throw_bf_exception(ctx, ret);
-            goto exception;
-        }
-        sp[-2] = JS_NewBigInt2(ctx, r, is_legacy);
-    } else if ((tag1 == JS_TAG_FLOAT64 && (tag2 == JS_TAG_FLOAT64 ||
-                                           tag2 == JS_TAG_INT ||
-                                           tag2 == JS_TAG_BIG_INT)) ||
-               (tag2 == JS_TAG_FLOAT64 && (tag1 == JS_TAG_INT ||
-                                           tag1 == JS_TAG_BIG_INT))) {
-        double dr;
-        /* float64 result */
-        JS_ToFloat64Free(ctx, &d1, op1);
-        JS_ToFloat64Free(ctx, &d2, op2);
-    handle_float64:
-        switch(op) {
-        case OP_sub:
-            dr = d1 - d2;
-            break;
-        case OP_mul:
-            dr = d1 * d2;
-            break;
-        case OP_div:
-        case OP_math_div:
-            dr = d1 / d2;
-            break;
-        case OP_mod:
-            dr = fmod(d1, d2);
-            break;
-        case OP_math_mod:
-            if (d1 >= 0 && d2 >= 0) {
-                dr = fmod(d1, d2);
-            } else {
-                /* XXX: slow */
-                bf_t a, b, r, q;
-                bf_init(ctx->bf_ctx, &a);
-                bf_init(ctx->bf_ctx, &b);
-                bf_init(ctx->bf_ctx, &r);
-                bf_set_float64(&a, d1);
-                bf_set_float64(&b, d2);
-                bf_divrem(&q, &r, &a, &b,
-                          53, bf_set_exp_bits(11) | BF_RNDN | BF_FLAG_SUBNORMAL,
-                          BF_DIVREM_EUCLIDIAN);
-                bf_get_float64(&q, &dr, BF_RNDN);
-                bf_delete(&a);
-                bf_delete(&b);
-                bf_delete(&q);
-                bf_delete(&r);
-            }
-            break;
-        case OP_pow:
-        case OP_math_pow:
-            dr = js_pow(d1, d2);
-            break;
-        default:
-            abort();
-        }
-        sp[-2] = __JS_NewFloat64(ctx, dr);
-    } else {
-        bf_t a_s, b_s, r_s, *r, *a, *b;
-        /* big float result */
-        a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-        b = JS_ToBigFloat(ctx, &is_float, &b_s, op2);
-        r = &r_s;
-        bf_init(ctx->bf_ctx, r);
-        ret = 0;
-        switch(op) {
-        case OP_sub:
-            bf_sub(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags);
-            break;
-        case OP_mul:
-            bf_mul(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags);
-            break;
-        case OP_math_div:
-        case OP_div:
-            bf_div(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags);
-            break;
-        case OP_math_mod:
-            /* Euclidian remainder */
-            rnd_mode = BF_DIVREM_EUCLIDIAN;
-            goto do_mod;
-        case OP_mod:
-            rnd_mode = BF_RNDZ;
-        do_mod:
-            {
-                bf_t q_s, *q = &q_s;
-                bf_init(ctx->bf_ctx, q);
-                bf_divrem(q, r, a, b, ctx->fp_env.prec, ctx->fp_env.flags,
-                          rnd_mode);
-                bf_delete(q);
-            }
-            break;
-        case OP_pow:
-        case OP_math_pow:
-            bf_pow(r, a, b, ctx->fp_env.prec,
-                   ctx->fp_env.flags | BF_POW_JS_QUICKS);
-            break;
-        default:
-            abort();
-        }
-        if (a == &a_s)
-            bf_delete(a);
-        if (b == &b_s)
-            bf_delete(b);
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-        if (unlikely(ret)) {
-            bf_delete(r);
-            throw_bf_exception(ctx, ret);
-            goto exception;
-        }
-        sp[-2] = JS_NewBigFloat(ctx, r);
-    }
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static no_inline __exception int js_add_slow(JSContext *ctx, JSValue *sp)
-{
-    JSValue op1, op2, res;
-    uint32_t tag1, tag2;
-    BOOL is_float, is_legacy;
-    int ret;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-
-    tag1 = JS_VALUE_GET_NORM_TAG(op1);
-    tag2 = JS_VALUE_GET_NORM_TAG(op2);
-    /* fast path for float64 */
-    if (tag1 == JS_TAG_FLOAT64 && tag2 == JS_TAG_FLOAT64) {
-        double d1, d2;
-        d1 = JS_VALUE_GET_FLOAT64(op1);
-        d2 = JS_VALUE_GET_FLOAT64(op2);
-        sp[-2] = __JS_NewFloat64(ctx, d1 + d2);
-        return 0;
-    }
-
-    if (tag1 == JS_TAG_OBJECT || tag2 == JS_TAG_OBJECT) {
-        /* try to call an overloaded operator */
-        if ((tag1 == JS_TAG_OBJECT &&
-             (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) ||
-            (tag2 == JS_TAG_OBJECT &&
-             (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) {
-            ret = js_call_binary_op_fallback(ctx, &res, op1, op2, OP_add);
-            if (ret != 0) {
-                JS_FreeValue(ctx, op1);
-                JS_FreeValue(ctx, op2);
-                if (ret < 0) {
-                    goto exception;
-                } else {
-                    sp[-2] = res;
-                    return 0;
-                }
-            }
-        }
-
-        op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE);
-        if (JS_IsException(op1)) {
-            JS_FreeValue(ctx, op2);
-            goto exception;
-        }
-
-        op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE);
-        if (JS_IsException(op2)) {
-            JS_FreeValue(ctx, op1);
-            goto exception;
-        }
-        tag1 = JS_VALUE_GET_NORM_TAG(op1);
-        tag2 = JS_VALUE_GET_NORM_TAG(op2);
-    }
-
-    if (tag1 == JS_TAG_STRING || tag2 == JS_TAG_STRING) {
-        sp[-2] = JS_ConcatString(ctx, op1, op2);
-        if (JS_IsException(sp[-2]))
-            goto exception;
-        return 0;
-    }
-
-    op1 = JS_ToNumericFree(ctx, op1);
-    if (JS_IsException(op1)) {
-        JS_FreeValue(ctx, op2);
-        goto exception;
-    }
-    op2 = JS_ToNumericFree(ctx, op2);
-    if (JS_IsException(op2)) {
-        JS_FreeValue(ctx, op1);
-        goto exception;
-    }
-    tag1 = JS_VALUE_GET_NORM_TAG(op1);
-    tag2 = JS_VALUE_GET_NORM_TAG(op2);
-
-    is_legacy = is_bignum_mode(ctx) ^ 1;
-    if (is_legacy && (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) &&
-        tag1 != tag2) {
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-        JS_ThrowTypeError(ctx, "both operands must be bigint");
-        goto exception;
-    }
-
-    if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) {
-        int32_t v1, v2;
-        int64_t v;
-        v1 = JS_VALUE_GET_INT(op1);
-        v2 = JS_VALUE_GET_INT(op2);
-        v = (int64_t)v1 + (int64_t)v2;
-        sp[-2] = JS_NewInt64(ctx, v);
-    } else if ((tag1 == JS_TAG_BIG_INT && (tag2 == JS_TAG_INT ||
-                                           tag2 == JS_TAG_BIG_INT)) ||
-               (tag2 == JS_TAG_BIG_INT && tag1 == JS_TAG_INT)) {
-        bf_t a_s, b_s, r_s, *r, *a, *b;
-        /* big int result */
-        a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-        b = JS_ToBigFloat(ctx, &is_float, &b_s, op2);
-        r = &r_s;
-        bf_init(ctx->bf_ctx, r);
-        ret = bf_add(r, a, b, BF_PREC_INF, BF_RNDZ) & BF_ST_OVERFLOW;
-        if (a == &a_s)
-            bf_delete(a);
-        if (b == &b_s)
-            bf_delete(b);
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-        if (unlikely(ret)) {
-            bf_delete(r);
-            throw_bf_exception(ctx, ret);
-            goto exception;
-        }
-        sp[-2] = JS_NewBigInt2(ctx, r, is_legacy);
-    } else if ((tag1 == JS_TAG_FLOAT64 && (tag2 == JS_TAG_FLOAT64 ||
-                                           tag2 == JS_TAG_INT ||
-                                           tag2 == JS_TAG_BIG_INT)) ||
-               (tag2 == JS_TAG_FLOAT64 && (tag1 == JS_TAG_INT ||
-                                           tag1 == JS_TAG_BIG_INT))) {
-        double d1, d2;
-        /* float64 result */
-        JS_ToFloat64Free(ctx, &d1, op1);
-        JS_ToFloat64Free(ctx, &d2, op2);
-        sp[-2] = __JS_NewFloat64(ctx, d1 + d2);
-    } else {
-        bf_t a_s, b_s, r_s, *r, *a, *b;
-        /* big float result */
-        a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-        b = JS_ToBigFloat(ctx, &is_float, &b_s, op2);
-
-        r = &r_s;
-        bf_init(ctx->bf_ctx, r);
-        bf_add(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags);
-        if (a == &a_s)
-            bf_delete(a);
-        if (b == &b_s)
-            bf_delete(b);
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-        if (unlikely(ret)) {
-            bf_delete(r);
-            throw_bf_exception(ctx, ret);
-            goto exception;
-        }
-        sp[-2] = JS_NewBigFloat(ctx, r);
-    }
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static no_inline __exception int js_binary_logic_slow(JSContext *ctx,
-                                                      JSValue *sp,
-                                                      OPCodeEnum op)
-{
-    JSValue op1, op2, res;
-    bf_t a_s, b_s, r_s, *r, *a, *b;
-    int ret;
-    uint32_t tag1, tag2;
-    BOOL is_legacy;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    tag1 = JS_VALUE_GET_NORM_TAG(op1);
-    tag2 = JS_VALUE_GET_NORM_TAG(op2);
-
-    /* try to call an overloaded operator */
-    if ((tag1 == JS_TAG_OBJECT &&
-         (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) ||
-        (tag2 == JS_TAG_OBJECT &&
-         (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) {
-        ret = js_call_binary_op_fallback(ctx, &res, op1, op2, op);
-        if (ret != 0) {
-            JS_FreeValue(ctx, op1);
-            JS_FreeValue(ctx, op2);
-            if (ret < 0) {
-                goto exception;
-            } else {
-                sp[-2] = res;
-                return 0;
-            }
-        }
-    }
-
-    op1 = JS_ToNumberHintFree(ctx, op1, TON_FLAG_INTEGER);
-    if (JS_IsException(op1)) {
-        JS_FreeValue(ctx, op2);
-        goto exception;
-    }
-    op2 = JS_ToNumberHintFree(ctx, op2, TON_FLAG_INTEGER);
-    if (JS_IsException(op2)) {
-        JS_FreeValue(ctx, op1);
-        goto exception;
-    }
-
-    is_legacy = is_bignum_mode(ctx) ^ 1;
-    if (is_legacy) {
-        uint32_t v1, v2, r;
-
-        tag1 = JS_VALUE_GET_TAG(op1);
-        tag2 = JS_VALUE_GET_TAG(op2);
-        if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) {
-            if (tag1 != tag2) {
-                JS_FreeValue(ctx, op1);
-                JS_FreeValue(ctx, op2);
-                JS_ThrowTypeError(ctx, "both operands must be bigint");
-                goto exception;
-            }
-        } else {
-            if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v1, op1))) {
-                JS_FreeValue(ctx, op2);
-                goto exception;
-            }
-            if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v2, op2)))
-                goto exception;
-            switch(op) {
-            case OP_shl:
-                r = v1 << (v2 & 0x1f);
-                break;
-            case OP_sar:
-                r = (int)v1 >> (v2 & 0x1f);
-                break;
-            case OP_and:
-                r = v1 & v2;
-                break;
-            case OP_or:
-                r = v1 | v2;
-                break;
-            case OP_xor:
-                r = v1 ^ v2;
-                break;
-            default:
-                abort();
-            }
-            sp[-2] = JS_NewInt32(ctx, r);
-            return 0;
-        }
-    }
-
-    a = JS_ToBigIntFree(ctx, &a_s, op1);
-    b = JS_ToBigIntFree(ctx, &b_s, op2);
-
-    r = &r_s;
-    bf_init(ctx->bf_ctx, r);
-    ret = 0;
-    switch(op) {
-    case OP_shl:
-    case OP_sar:
-        {
-            slimb_t v2;
-#if LIMB_BITS == 32
-            bf_get_int32(&v2, b, 0);
-            if (v2 == INT32_MIN)
-                v2 = INT32_MIN + 1;
-#else
-            bf_get_int64(&v2, b, 0);
-            if (v2 == INT64_MIN)
-                v2 = INT64_MIN + 1;
-#endif
-            if (op == OP_sar)
-                v2 = -v2;
-            bf_set(r, a);
-            ret = bf_mul_2exp(r, v2, BF_PREC_INF, BF_RNDZ);
-            if (v2 < 0) {
-                ret |= bf_rint(r, BF_PREC_INF, BF_RNDD);
-            }
-            ret &= BF_ST_OVERFLOW;
-        }
-        break;
-    case OP_and:
-        bf_logic_and(r, a, b);
-        break;
-    case OP_or:
-        bf_logic_or(r, a, b);
-        break;
-    case OP_xor:
-        bf_logic_xor(r, a, b);
-        break;
-    default:
-        abort();
-    }
-    JS_FreeBigInt(ctx, a, &a_s);
-    JS_FreeBigInt(ctx, b, &b_s);
-    if (unlikely(ret)) {
-        bf_delete(r);
-        throw_bf_exception(ctx, ret);
-        goto exception;
-    }
-    sp[-2] = JS_NewBigInt2(ctx, r, is_legacy);
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static no_inline int js_relational_slow(JSContext *ctx, JSValue *sp,
-                                        OPCodeEnum op)
-{
-    JSValue op1, op2, ret;
-    int res;
-    uint32_t tag1, tag2;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    tag1 = JS_VALUE_GET_NORM_TAG(op1);
-    tag2 = JS_VALUE_GET_NORM_TAG(op2);
-    /* try to call an overloaded operator */
-    if ((tag1 == JS_TAG_OBJECT &&
-         (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) ||
-        (tag2 == JS_TAG_OBJECT &&
-         (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) {
-        res = js_call_binary_op_fallback(ctx, &ret, op1, op2, op);
-        if (res != 0) {
-            JS_FreeValue(ctx, op1);
-            JS_FreeValue(ctx, op2);
-            if (res < 0) {
-                goto exception;
-            } else {
-                sp[-2] = ret;
-                return 0;
-            }
-        }
-    }
-    op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NUMBER);
-    if (JS_IsException(op1)) {
-        JS_FreeValue(ctx, op2);
-        goto exception;
-    }
-    op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NUMBER);
-    if (JS_IsException(op2)) {
-        JS_FreeValue(ctx, op1);
-        goto exception;
-    }
-    tag1 = JS_VALUE_GET_NORM_TAG(op1);
-    tag2 = JS_VALUE_GET_NORM_TAG(op2);
-
-    if (tag1 == JS_TAG_STRING && tag2 == JS_TAG_STRING) {
-        JSString *p1, *p2;
-        p1 = JS_VALUE_GET_STRING(op1);
-        p2 = JS_VALUE_GET_STRING(op2);
-        res = js_string_compare(ctx, p1, p2);
-        switch(op) {
-        case OP_lt:
-            res = (res < 0);
-            break;
-        case OP_lte:
-            res = (res <= 0);
-            break;
-        case OP_gt:
-            res = (res > 0);
-            break;
-        default:
-        case OP_gte:
-            res = (res >= 0);
-            break;
-        }
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-    } else if ((tag1 <= JS_TAG_NULL || tag1 == JS_TAG_FLOAT64) &&
-               (tag2 <= JS_TAG_NULL || tag2 == JS_TAG_FLOAT64)) {
-        /* can use floating point comparison */
-        double d1, d2;
-        if (tag1 == JS_TAG_FLOAT64) {
-            d1 = JS_VALUE_GET_FLOAT64(op1);
-        } else {
-            d1 = JS_VALUE_GET_INT(op1);
-        }
-        if (tag2 == JS_TAG_FLOAT64) {
-            d2 = JS_VALUE_GET_FLOAT64(op2);
-        } else {
-            d2 = JS_VALUE_GET_INT(op2);
-        }
-        switch(op) {
-        case OP_lt:
-            res = (d1 < d2); /* if NaN return false */
-            break;
-        case OP_lte:
-            res = (d1 <= d2); /* if NaN return false */
-            break;
-        case OP_gt:
-            res = (d1 > d2); /* if NaN return false */
-            break;
-        default:
-        case OP_gte:
-            res = (d1 >= d2); /* if NaN return false */
-            break;
-        }
-    } else {
-        bf_t a_s, b_s, *a, *b;
-        BOOL is_float;
-
-        if (((tag1 == JS_TAG_BIG_INT && tag2 == JS_TAG_STRING) ||
-             (tag2 == JS_TAG_BIG_INT && tag1 == JS_TAG_STRING)) &&
-            !is_bignum_mode(ctx)) {
-            if (tag1 == JS_TAG_STRING) {
-                op1 = JS_StringToBigInt(ctx, op1);
-                if (JS_VALUE_GET_TAG(op1) != JS_TAG_BIG_INT)
-                    goto invalid_bigint_string;
-            }
-            if (tag2 == JS_TAG_STRING) {
-                op2 = JS_StringToBigInt(ctx, op2);
-                if (JS_VALUE_GET_TAG(op2) != JS_TAG_BIG_INT) {
-                invalid_bigint_string:
-                    JS_FreeValue(ctx, op1);
-                    JS_FreeValue(ctx, op2);
-                    res = FALSE;
-                    goto done;
-                }
-            }
-        } else {
-            op1 = JS_ToNumericFree(ctx, op1);
-            if (JS_IsException(op1)) {
-                JS_FreeValue(ctx, op2);
-                goto exception;
-            }
-            op2 = JS_ToNumericFree(ctx, op2);
-            if (JS_IsException(op2)) {
-                JS_FreeValue(ctx, op1);
-                goto exception;
-            }
-        }
-
-        a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-        b = JS_ToBigFloat(ctx, &is_float, &b_s, op2);
-
-        switch(op) {
-        case OP_lt:
-            res = bf_cmp_lt(a, b); /* if NaN return false */
-            break;
-        case OP_lte:
-            res = bf_cmp_le(a, b); /* if NaN return false */
-            break;
-        case OP_gt:
-            res = bf_cmp_lt(b, a); /* if NaN return false */
-            break;
-        default:
-        case OP_gte:
-            res = bf_cmp_le(b, a); /* if NaN return false */
-            break;
-        }
-        if (a == &a_s)
-            bf_delete(a);
-        if (b == &b_s)
-            bf_delete(b);
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-    }
- done:
-    sp[-2] = JS_NewBool(ctx, res);
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static BOOL tag_is_number(uint32_t tag)
-{
-    return (tag == JS_TAG_INT || tag == JS_TAG_BIG_INT ||
-            tag == JS_TAG_FLOAT64 || tag == JS_TAG_BIG_FLOAT);
-}
-
-static no_inline __exception int js_eq_slow(JSContext *ctx, JSValue *sp,
-                                            BOOL is_neq)
-{
-    JSValue op1, op2, ret;
-    int res;
-    uint32_t tag1, tag2;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
- redo:
-    tag1 = JS_VALUE_GET_NORM_TAG(op1);
-    tag2 = JS_VALUE_GET_NORM_TAG(op2);
-    if (tag_is_number(tag1) && tag_is_number(tag2)) {
-        if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) {
-            res = JS_VALUE_GET_INT(op1) == JS_VALUE_GET_INT(op2);
-        } else if ((tag1 == JS_TAG_FLOAT64 &&
-                    (tag2 == JS_TAG_INT || tag2 == JS_TAG_FLOAT64)) ||
-                   (tag2 == JS_TAG_FLOAT64 &&
-                    (tag1 == JS_TAG_INT || tag1 == JS_TAG_FLOAT64))) {
-            double d1, d2;
-            if (tag1 == JS_TAG_FLOAT64) {
-                d1 = JS_VALUE_GET_FLOAT64(op1);
-            } else {
-                d1 = JS_VALUE_GET_INT(op1);
-            }
-            if (tag2 == JS_TAG_FLOAT64) {
-                d2 = JS_VALUE_GET_FLOAT64(op2);
-            } else {
-                d2 = JS_VALUE_GET_INT(op2);
-            }
-            res = (d1 == d2);
-        } else {
-            bf_t a_s, b_s, *a, *b;
-            BOOL is_float;
-            a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-            b = JS_ToBigFloat(ctx, &is_float, &b_s, op2);
-            res = bf_cmp_eq(a, b);
-            if (a == &a_s)
-                bf_delete(a);
-            if (b == &b_s)
-                bf_delete(b);
-            JS_FreeValue(ctx, op1);
-            JS_FreeValue(ctx, op2);
-        }
-    } else if (tag1 == tag2) {
-        if (tag1 == JS_TAG_OBJECT) {
-            /* try the fallback operator */
-            res = js_call_binary_op_fallback(ctx, &ret, op1, op2,
-                                              is_neq ? OP_neq : OP_eq);
-            if (res != 0) {
-                JS_FreeValue(ctx, op1);
-                JS_FreeValue(ctx, op2);
-                if (res < 0) {
-                    goto exception;
-                } else {
-                    sp[-2] = ret;
-                    return 0;
-                }
-            }
-        }
-        res = js_strict_eq2(ctx, op1, op2, JS_EQ_STRICT);
-    } else if ((tag1 == JS_TAG_NULL && tag2 == JS_TAG_UNDEFINED) ||
-               (tag2 == JS_TAG_NULL && tag1 == JS_TAG_UNDEFINED)) {
-        res = TRUE;
-    } else if ((tag1 == JS_TAG_STRING && tag_is_number(tag2)) ||
-               (tag2 == JS_TAG_STRING && tag_is_number(tag1))) {
-
-        if ((tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) &&
-            !is_bignum_mode(ctx)) {
-            if (tag1 == JS_TAG_STRING) {
-                op1 = JS_StringToBigInt(ctx, op1);
-                if (JS_VALUE_GET_TAG(op1) != JS_TAG_BIG_INT)
-                    goto invalid_bigint_string;
-            }
-            if (tag2 == JS_TAG_STRING) {
-                op2 = JS_StringToBigInt(ctx, op2);
-                if (JS_VALUE_GET_TAG(op2) != JS_TAG_BIG_INT) {
-                invalid_bigint_string:
-                    JS_FreeValue(ctx, op1);
-                    JS_FreeValue(ctx, op2);
-                    res = FALSE;
-                    goto done;
-                }
-            }
-        } else {
-            op1 = JS_ToNumericFree(ctx, op1);
-            if (JS_IsException(op1)) {
-                JS_FreeValue(ctx, op2);
-                goto exception;
-            }
-            op2 = JS_ToNumericFree(ctx, op2);
-            if (JS_IsException(op2)) {
-                JS_FreeValue(ctx, op1);
-                goto exception;
-            }
-        }
-        res = js_strict_eq(ctx, op1, op2);
-    } else if (tag1 == JS_TAG_BOOL) {
-        op1 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op1));
-        goto redo;
-    } else if (tag2 == JS_TAG_BOOL) {
-        op2 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op2));
-        goto redo;
-    } else if ((tag1 == JS_TAG_OBJECT &&
-                (tag_is_number(tag2) || tag2 == JS_TAG_STRING || tag2 == JS_TAG_SYMBOL)) ||
-               (tag2 == JS_TAG_OBJECT &&
-                (tag_is_number(tag1) || tag1 == JS_TAG_STRING || tag1 == JS_TAG_SYMBOL))) {
-
-        /* try the fallback operator */
-        res = js_call_binary_op_fallback(ctx, &ret, op1, op2,
-                                          is_neq ? OP_neq : OP_eq);
-        if (res != 0) {
-            JS_FreeValue(ctx, op1);
-            JS_FreeValue(ctx, op2);
-            if (res < 0) {
-                goto exception;
-            } else {
-                sp[-2] = ret;
-                return 0;
-            }
-        }
-
-        op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE);
-        if (JS_IsException(op1)) {
-            JS_FreeValue(ctx, op2);
-            goto exception;
-        }
-        op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE);
-        if (JS_IsException(op2)) {
-            JS_FreeValue(ctx, op1);
-            goto exception;
-        }
-        goto redo;
-    } else {
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-        res = FALSE;
-    }
- done:
-    sp[-2] = JS_NewBool(ctx, res ^ is_neq);
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static no_inline int js_shr_slow(JSContext *ctx, JSValue *sp)
-{
-    JSValue op1, op2;
-    uint32_t v1, v2, r;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    op1 = JS_ToNumericFree(ctx, op1);
-    if (JS_IsException(op1)) {
-        JS_FreeValue(ctx, op2);
-        goto exception;
-    }
-    op2 = JS_ToNumericFree(ctx, op2);
-    if (JS_IsException(op2)) {
-        JS_FreeValue(ctx, op1);
-        goto exception;
-    }
-    /* XXX: could forbid >>> in bignum mode */
-    if (!is_bignum_mode(ctx) &&
-        (JS_VALUE_GET_TAG(op1) == JS_TAG_BIG_INT ||
-         JS_VALUE_GET_TAG(op2) == JS_TAG_BIG_INT)) {
-        JS_ThrowTypeError(ctx, "bigint operands are forbidden for >>>");
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-        goto exception;
-    }
-    /* cannot give an exception */
-    JS_ToUint32Free(ctx, &v1, op1);
-    JS_ToUint32Free(ctx, &v2, op2);
-    r = v1 >> (v2 & 0x1f);
-    sp[-2] = JS_NewUint32(ctx, r);
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static double bf_mul_pow10_to_float64(JSContext *ctx, const bf_t *a,
-                                      int64_t exponent)
-{
-    bf_t r_s, *r = &r_s;
-    double d;
-    /* always convert to Float64 */
-    bf_init(ctx->bf_ctx, r);
-    bf_mul_pow_radix(r, a, 10, exponent,
-                     53, bf_set_exp_bits(11) | BF_RNDN | BF_FLAG_SUBNORMAL);
-    bf_get_float64(r, &d, BF_RNDN);
-    bf_delete(r);
-    return d;
-}
-
-static no_inline int js_mul_pow10(JSContext *ctx, JSValue *sp)
-{
-    bf_t a_s, *a, r_s, *r = &r_s;
-    BOOL is_float;
-    JSValue op1, op2;
-    slimb_t e;
-    int ret;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-    if (!a)
-        return -1;
-#if LIMB_BITS == 32
-    ret = JS_ToInt32(ctx, &e, op2);
-#else
-    ret = JS_ToInt64(ctx, &e, op2);
-#endif
-    if (ret) {
-        if (a == &a_s)
-            bf_delete(a);
-        return -1;
-    }
-
-    bf_init(ctx->bf_ctx, r);
-    bf_mul_pow_radix(r, a, 10, e, ctx->fp_env.prec, ctx->fp_env.flags);
-    if (a == &a_s)
-        bf_delete(a);
-    JS_FreeValue(ctx, op1);
-    JS_FreeValue(ctx, op2);
-    sp[-2] = JS_NewBigFloat(ctx, r);
-    return 0;
-}
-
-#else /* !CONFIG_BIGNUM */
-
-static no_inline __exception int js_unary_arith_slow(JSContext *ctx,
-                                                     JSValue *sp,
-                                                     OPCodeEnum op)
-{
-    JSValue op1;
-    double d;
-
-    op1 = sp[-1];
-    if (unlikely(JS_ToFloat64Free(ctx, &d, op1))) {
-        sp[-1] = JS_UNDEFINED;
-        return -1;
-    }
-    switch(op) {
-    case OP_inc:
-        d++;
-        break;
-    case OP_dec:
-        d--;
-        break;
-    case OP_plus:
-        break;
-    case OP_neg:
-        d = -d;
-        break;
-    default:
-        abort();
-    }
-    sp[-1] = JS_NewFloat64(ctx, d);
-    return 0;
-}
-
-/* specific case necessary for correct return value semantics */
-static __exception int js_post_inc_slow(JSContext *ctx,
-                                        JSValue *sp, OPCodeEnum op)
-{
-    JSValue op1;
-    double d, r;
-
-    op1 = sp[-1];
-    if (unlikely(JS_ToFloat64Free(ctx, &d, op1))) {
-        sp[-1] = JS_UNDEFINED;
-        return -1;
-    }
-    r = d + 2 * (op - OP_post_dec) - 1;
-    sp[0] = JS_NewFloat64(ctx, r);
-    sp[-1] = JS_NewFloat64(ctx, d);
-    return 0;
-}
-
-static no_inline __exception int js_binary_arith_slow(JSContext *ctx, JSValue *sp,
-                                                      OPCodeEnum op)
-{
-    JSValue op1, op2;
-    double d1, d2, r;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    if (unlikely(JS_ToFloat64Free(ctx, &d1, op1))) {
-        JS_FreeValue(ctx, op2);
-        goto exception;
-    }
-    if (unlikely(JS_ToFloat64Free(ctx, &d2, op2))) {
-        goto exception;
-    }
-    switch(op) {
-    case OP_sub:
-        r = d1 - d2;
-        break;
-    case OP_mul:
-        r = d1 * d2;
-        break;
-    case OP_div:
-        r = d1 / d2;
-        break;
-    case OP_mod:
-        r = fmod(d1, d2);
-        break;
-    case OP_pow:
-        r = js_pow(d1, d2);
-        break;
-    default:
-        abort();
-    }
-    sp[-2] = JS_NewFloat64(ctx, r);
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static no_inline __exception int js_add_slow(JSContext *ctx, JSValue *sp)
-{
-    JSValue op1, op2;
-    uint32_t tag1, tag2;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    tag1 = JS_VALUE_GET_TAG(op1);
-    tag2 = JS_VALUE_GET_TAG(op2);
-    if ((tag1 == JS_TAG_INT || JS_TAG_IS_FLOAT64(tag1)) &&
-        (tag2 == JS_TAG_INT || JS_TAG_IS_FLOAT64(tag2))) {
-        goto add_numbers;
-    } else {
-        op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE);
-        if (JS_IsException(op1)) {
-            JS_FreeValue(ctx, op2);
-            goto exception;
-        }
-        op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE);
-        if (JS_IsException(op2)) {
-            JS_FreeValue(ctx, op1);
-            goto exception;
-        }
-        tag1 = JS_VALUE_GET_TAG(op1);
-        tag2 = JS_VALUE_GET_TAG(op2);
-        if (tag1 == JS_TAG_STRING || tag2 == JS_TAG_STRING) {
-            sp[-2] = JS_ConcatString(ctx, op1, op2);
-            if (JS_IsException(sp[-2]))
-                goto exception;
-        } else {
-            double d1, d2;
-        add_numbers:
-            if (JS_ToFloat64Free(ctx, &d1, op1)) {
-                JS_FreeValue(ctx, op2);
-                goto exception;
-            }
-            if (JS_ToFloat64Free(ctx, &d2, op2))
-                goto exception;
-            sp[-2] = JS_NewFloat64(ctx, d1 + d2);
-        }
-    }
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static no_inline __exception int js_binary_logic_slow(JSContext *ctx,
-                                                      JSValue *sp,
-                                                      OPCodeEnum op)
-{
-    JSValue op1, op2;
-    uint32_t v1, v2, r;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v1, op1))) {
-        JS_FreeValue(ctx, op2);
-        goto exception;
-    }
-    if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v2, op2)))
-        goto exception;
-    switch(op) {
-    case OP_shl:
-        r = v1 << (v2 & 0x1f);
-        break;
-    case OP_sar:
-        r = (int)v1 >> (v2 & 0x1f);
-        break;
-    case OP_and:
-        r = v1 & v2;
-        break;
-    case OP_or:
-        r = v1 | v2;
-        break;
-    case OP_xor:
-        r = v1 ^ v2;
-        break;
-    default:
-        abort();
-    }
-    sp[-2] = JS_NewInt32(ctx, r);
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static no_inline int js_not_slow(JSContext *ctx, JSValue *sp)
-{
-    int32_t v1;
-
-    if (unlikely(JS_ToInt32Free(ctx, &v1, sp[-1]))) {
-        sp[-1] = JS_UNDEFINED;
-        return -1;
-    }
-    sp[-1] = JS_NewInt32(ctx, ~v1);
-    return 0;
-}
-
-static no_inline int js_relational_slow(JSContext *ctx, JSValue *sp,
-                                        OPCodeEnum op)
-{
-    JSValue op1, op2;
-    int res;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NUMBER);
-    if (JS_IsException(op1)) {
-        JS_FreeValue(ctx, op2);
-        goto exception;
-    }
-    op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NUMBER);
-    if (JS_IsException(op2)) {
-        JS_FreeValue(ctx, op1);
-        goto exception;
-    }
-    if (JS_VALUE_GET_TAG(op1) == JS_TAG_STRING &&
-        JS_VALUE_GET_TAG(op2) == JS_TAG_STRING) {
-        JSString *p1, *p2;
-        p1 = JS_VALUE_GET_STRING(op1);
-        p2 = JS_VALUE_GET_STRING(op2);
-        res = js_string_compare(ctx, p1, p2);
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-        switch(op) {
-        case OP_lt:
-            res = (res < 0);
-            break;
-        case OP_lte:
-            res = (res <= 0);
-            break;
-        case OP_gt:
-            res = (res > 0);
-            break;
-        default:
-        case OP_gte:
-            res = (res >= 0);
-            break;
-        }
-    } else {
-        double d1, d2;
-        if (JS_ToFloat64Free(ctx, &d1, op1)) {
-            JS_FreeValue(ctx, op2);
-            goto exception;
-        }
-        if (JS_ToFloat64Free(ctx, &d2, op2))
-            goto exception;
-        switch(op) {
-        case OP_lt:
-            res = (d1 < d2); /* if NaN return false */
-            break;
-        case OP_lte:
-            res = (d1 <= d2); /* if NaN return false */
-            break;
-        case OP_gt:
-            res = (d1 > d2); /* if NaN return false */
-            break;
-        default:
-        case OP_gte:
-            res = (d1 >= d2); /* if NaN return false */
-            break;
-        }
-    }
-    sp[-2] = JS_NewBool(ctx, res);
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static no_inline __exception int js_eq_slow(JSContext *ctx, JSValue *sp,
-                                            BOOL is_neq)
-{
-    JSValue op1, op2;
-    int tag1, tag2;
-    BOOL res;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
- redo:
-    tag1 = JS_VALUE_GET_NORM_TAG(op1);
-    tag2 = JS_VALUE_GET_NORM_TAG(op2);
-    if (tag1 == tag2 ||
-        (tag1 == JS_TAG_INT && tag2 == JS_TAG_FLOAT64) ||
-        (tag2 == JS_TAG_INT && tag1 == JS_TAG_FLOAT64)) {
-        res = js_strict_eq(ctx, op1, op2);
-    } else if ((tag1 == JS_TAG_NULL && tag2 == JS_TAG_UNDEFINED) ||
-               (tag2 == JS_TAG_NULL && tag1 == JS_TAG_UNDEFINED)) {
-        res = TRUE;
-    } else if ((tag1 == JS_TAG_STRING && (tag2 == JS_TAG_INT ||
-                                   tag2 == JS_TAG_FLOAT64)) ||
-        (tag2 == JS_TAG_STRING && (tag1 == JS_TAG_INT ||
-                                   tag1 == JS_TAG_FLOAT64))) {
-        double d1;
-        double d2;
-        if (JS_ToFloat64Free(ctx, &d1, op1)) {
-            JS_FreeValue(ctx, op2);
-            goto exception;
-        }
-        if (JS_ToFloat64Free(ctx, &d2, op2))
-            goto exception;
-        res = (d1 == d2);
-    } else if (tag1 == JS_TAG_BOOL) {
-        op1 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op1));
-        goto redo;
-    } else if (tag2 == JS_TAG_BOOL) {
-        op2 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op2));
-        goto redo;
-    } else if (tag1 == JS_TAG_OBJECT &&
-               (tag2 == JS_TAG_INT || tag2 == JS_TAG_FLOAT64 || tag2 == JS_TAG_STRING || tag2 == JS_TAG_SYMBOL)) {
-        op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE);
-        if (JS_IsException(op1)) {
-            JS_FreeValue(ctx, op2);
-            goto exception;
-        }
-        goto redo;
-    } else if (tag2 == JS_TAG_OBJECT &&
-               (tag1 == JS_TAG_INT || tag1 == JS_TAG_FLOAT64 || tag1 == JS_TAG_STRING || tag1 == JS_TAG_SYMBOL)) {
-        op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE);
-        if (JS_IsException(op2)) {
-            JS_FreeValue(ctx, op1);
-            goto exception;
-        }
-        goto redo;
-    } else {
-        JS_FreeValue(ctx, op1);
-        JS_FreeValue(ctx, op2);
-        res = FALSE;
-    }
-    sp[-2] = JS_NewBool(ctx, res ^ is_neq);
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static no_inline int js_shr_slow(JSContext *ctx, JSValue *sp)
-{
-    JSValue op1, op2;
-    uint32_t v1, v2, r;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    if (unlikely(JS_ToUint32Free(ctx, &v1, op1))) {
-        JS_FreeValue(ctx, op2);
-        goto exception;
-    }
-    if (unlikely(JS_ToUint32Free(ctx, &v2, op2)))
-        goto exception;
-    r = v1 >> (v2 & 0x1f);
-    sp[-2] = JS_NewUint32(ctx, r);
-    return 0;
- exception:
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-#endif /* !CONFIG_BIGNUM */
-
-/* XXX: Should take JSValueConst arguments */
-static BOOL js_strict_eq2(JSContext *ctx, JSValue op1, JSValue op2,
-                          JSStrictEqModeEnum eq_mode)
-{
-    BOOL res;
-    int tag1, tag2;
-    double d1, d2;
-
-    tag1 = JS_VALUE_GET_NORM_TAG(op1);
-    tag2 = JS_VALUE_GET_NORM_TAG(op2);
-    switch(tag1) {
-    case JS_TAG_BOOL:
-        if (tag1 != tag2) {
-            res = FALSE;
-        } else {
-            res = JS_VALUE_GET_INT(op1) == JS_VALUE_GET_INT(op2);
-            goto done_no_free;
-        }
-        break;
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-        res = (tag1 == tag2);
-        break;
-    case JS_TAG_STRING:
-        {
-            JSString *p1, *p2;
-            if (tag1 != tag2) {
-                res = FALSE;
-            } else {
-                p1 = JS_VALUE_GET_STRING(op1);
-                p2 = JS_VALUE_GET_STRING(op2);
-                res = (js_string_compare(ctx, p1, p2) == 0);
-            }
-        }
-        break;
-    case JS_TAG_SYMBOL:
-        {
-            JSAtomStruct *p1, *p2;
-            if (tag1 != tag2) {
-                res = FALSE;
-            } else {
-                p1 = JS_VALUE_GET_PTR(op1);
-                p2 = JS_VALUE_GET_PTR(op2);
-                res = (p1 == p2);
-            }
-        }
-        break;
-    case JS_TAG_OBJECT:
-        if (tag1 != tag2)
-            res = FALSE;
-        else
-            res = JS_VALUE_GET_OBJ(op1) == JS_VALUE_GET_OBJ(op2);
-        break;
-    case JS_TAG_INT:
-        d1 = JS_VALUE_GET_INT(op1);
-        if (tag2 == JS_TAG_INT) {
-            d2 = JS_VALUE_GET_INT(op2);
-            goto number_test;
-        } else if (tag2 == JS_TAG_FLOAT64) {
-#ifdef CONFIG_BIGNUM
-            if (is_bignum_mode(ctx)) {
-                res = FALSE;
-            } else
-#endif
-            {
-                d2 = JS_VALUE_GET_FLOAT64(op2);
-                goto number_test;
-            }
-        } else
-#ifdef CONFIG_BIGNUM
-        if (tag2 == JS_TAG_BIG_INT && is_bignum_mode(ctx)) {
-            goto bigint_test;
-        } else
-#endif
-        {
-            res = FALSE;
-        }
-        break;
-    case JS_TAG_FLOAT64:
-        d1 = JS_VALUE_GET_FLOAT64(op1);
-        if (tag2 == JS_TAG_FLOAT64) {
-            d2 = JS_VALUE_GET_FLOAT64(op2);
-        } else if (tag2 == JS_TAG_INT
-#ifdef CONFIG_BIGNUM
-                   && !is_bignum_mode(ctx)
-#endif
-                   ) {
-            d2 = JS_VALUE_GET_INT(op2);
-        } else {
-            res = FALSE;
-            break;
-        }
-    number_test:
-        if (unlikely(eq_mode >= JS_EQ_SAME_VALUE)) {
-            JSFloat64Union u1, u2;
-            /* NaN is not always normalized, so this test is necessary */
-            if (isnan(d1) || isnan(d2)) {
-                res = isnan(d1) == isnan(d2);
-            } else if (eq_mode == JS_EQ_SAME_VALUE_ZERO) {
-                res = (d1 == d2); /* +0 == -0 */
-            } else {
-                u1.d = d1;
-                u2.d = d2;
-                res = (u1.u64 == u2.u64); /* +0 != -0 */
-            }
-        } else {
-            res = (d1 == d2); /* if NaN return false and +0 == -0 */
-        }
-        goto done_no_free;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-        {
-            bf_t a_s, *a, b_s, *b;
-            BOOL is_float;
-            if (tag1 == tag2) {
-                /* OK */
-            } else if (tag2 == JS_TAG_INT && is_bignum_mode(ctx)) {
-                /* OK */
-            } else {
-                res = FALSE;
-                break;
-            }
-        bigint_test:
-            a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-            b = JS_ToBigFloat(ctx, &is_float, &b_s, op2);
-            res = bf_cmp_eq(a, b);
-            if (a == &a_s)
-                bf_delete(a);
-            if (b == &b_s)
-                bf_delete(a);
-        }
-        break;
-    case JS_TAG_BIG_FLOAT:
-        {
-            JSBigFloat *p1, *p2;
-            const bf_t *a, *b;
-            if (tag1 != tag2) {
-                res = FALSE;
-                break;
-            }
-            p1 = JS_VALUE_GET_PTR(op1);
-            p2 = JS_VALUE_GET_PTR(op2);
-            a = &p1->num;
-            b = &p2->num;
-            if (unlikely(eq_mode >= JS_EQ_SAME_VALUE)) {
-                if (eq_mode == JS_EQ_SAME_VALUE_ZERO &&
-                           a->expn == BF_EXP_ZERO && b->expn == BF_EXP_ZERO) {
-                    res = TRUE;
-                } else {
-                    res = (bf_cmp_full(a, b) == 0);
-                }
-            } else {
-                res = bf_cmp_eq(a, b);
-            }
-        }
-        break;
-#endif
-    default:
-        res = FALSE;
-        break;
-    }
-    JS_FreeValue(ctx, op1);
-    JS_FreeValue(ctx, op2);
- done_no_free:
-    return res;
-}
-
-static BOOL js_strict_eq(JSContext *ctx, JSValue op1, JSValue op2)
-{
-    return js_strict_eq2(ctx, op1, op2, JS_EQ_STRICT);
-}
-
-static BOOL js_same_value(JSContext *ctx, JSValueConst op1, JSValueConst op2)
-{
-    return js_strict_eq2(ctx,
-                         JS_DupValue(ctx, op1), JS_DupValue(ctx, op2),
-                         JS_EQ_SAME_VALUE);
-}
-
-static BOOL js_same_value_zero(JSContext *ctx, JSValueConst op1, JSValueConst op2)
-{
-    return js_strict_eq2(ctx,
-                         JS_DupValue(ctx, op1), JS_DupValue(ctx, op2),
-                         JS_EQ_SAME_VALUE_ZERO);
-}
-
-static no_inline int js_strict_eq_slow(JSContext *ctx, JSValue *sp,
-                                       BOOL is_neq)
-{
-    BOOL res;
-    res = js_strict_eq(ctx, sp[-2], sp[-1]);
-    sp[-2] = JS_NewBool(ctx, res ^ is_neq);
-    return 0;
-}
-
-static __exception int js_operator_in(JSContext *ctx, JSValue *sp)
-{
-    JSValue op1, op2;
-    JSAtom atom;
-    int ret;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-
-    if (JS_VALUE_GET_TAG(op2) != JS_TAG_OBJECT) {
-        JS_ThrowTypeError(ctx, "invalid 'in' operand");
-        return -1;
-    }
-    atom = js_value_to_atom(ctx, op1);
-    if (unlikely(atom == JS_ATOM_NULL))
-        return -1;
-    ret = JS_HasProperty(ctx, op2, atom);
-    JS_FreeAtom(ctx, atom);
-    if (ret < 0)
-        return -1;
-    JS_FreeValue(ctx, op1);
-    JS_FreeValue(ctx, op2);
-    sp[-2] = JS_NewBool(ctx, ret);
-    return 0;
-}
-
-static __exception int js_has_unscopable(JSContext *ctx, JSValueConst obj,
-                                         JSAtom atom)
-{
-    JSValue arr, val;
-    int ret;
-
-    arr = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_unscopables);
-    if (JS_IsException(arr))
-        return -1;
-    ret = 0;
-    if (JS_IsObject(arr)) {
-        val = JS_GetProperty(ctx, arr, atom);
-        ret = JS_ToBoolFree(ctx, val);
-    }
-    JS_FreeValue(ctx, arr);
-    return ret;
-}
-
-static __exception int js_operator_instanceof(JSContext *ctx, JSValue *sp)
-{
-    JSValue op1, op2;
-    BOOL ret;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    ret = JS_IsInstanceOf(ctx, op1, op2);
-    if (ret < 0)
-        return ret;
-    JS_FreeValue(ctx, op1);
-    JS_FreeValue(ctx, op2);
-    sp[-2] = JS_NewBool(ctx, ret);
-    return 0;
-}
-
-static __exception int js_operator_typeof(JSContext *ctx, JSValue op1)
-{
-    JSAtom atom;
-    uint32_t tag;
-
-    tag = JS_VALUE_GET_NORM_TAG(op1);
-    switch(tag) {
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_INT:
-        if (is_bignum_mode(ctx))
-            atom = JS_ATOM_bigint;
-        else
-            atom = JS_ATOM_number;
-        break;
-    case JS_TAG_BIG_INT:
-        atom = JS_ATOM_bigint;
-        break;
-    case JS_TAG_FLOAT64:
-        atom = JS_ATOM_number;
-        break;
-    case JS_TAG_BIG_FLOAT:
-        atom = JS_ATOM_bigfloat;
-        break;
-#else
-    case JS_TAG_INT:
-    case JS_TAG_FLOAT64:
-        atom = JS_ATOM_number;
-        break;
-#endif
-    case JS_TAG_UNDEFINED:
-        atom = JS_ATOM_undefined;
-        break;
-    case JS_TAG_BOOL:
-        atom = JS_ATOM_boolean;
-        break;
-    case JS_TAG_STRING:
-        atom = JS_ATOM_string;
-        break;
-    case JS_TAG_OBJECT:
-        if (JS_IsFunction(ctx, op1))
-            atom = JS_ATOM_function;
-        else
-            goto obj_type;
-        break;
-    case JS_TAG_NULL:
-    obj_type:
-        atom = JS_ATOM_object;
-        break;
-    case JS_TAG_SYMBOL:
-        atom = JS_ATOM_symbol;
-        break;
-    default:
-        atom = JS_ATOM_unknown;
-        break;
-    }
-    return atom;
-}
-
-static __exception int js_operator_delete(JSContext *ctx, JSValue *sp)
-{
-    JSValue op1, op2;
-    JSAtom atom;
-    int ret;
-
-    op1 = sp[-2];
-    op2 = sp[-1];
-    atom = js_value_to_atom(ctx, op2);
-    if (unlikely(atom == JS_ATOM_NULL))
-        return -1;
-    ret = JS_DeleteProperty(ctx, op1, atom, JS_PROP_THROW_STRICT);
-    JS_FreeAtom(ctx, atom);
-    if (unlikely(ret < 0))
-        return -1;
-    JS_FreeValue(ctx, op1);
-    JS_FreeValue(ctx, op2);
-    sp[-2] = JS_NewBool(ctx, ret);
-    return 0;
-}
-
-static JSValue js_throw_type_error(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    return JS_ThrowTypeError(ctx, "invalid property access");
-}
-
-/* XXX: not 100% compatible, but mozilla seems to use a similar
-   implementation to ensure that caller in non strict mode does not
-   throw (ES5 compatibility) */
-static JSValue js_function_proto_caller(JSContext *ctx, JSValueConst this_val,
-                                        int argc, JSValueConst *argv)
-{
-    JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val);
-    if (!b || (b->js_mode & JS_MODE_STRICT) || !b->has_prototype) {
-        return js_throw_type_error(ctx, this_val, 0, NULL);
-    }
-    return JS_UNDEFINED;
-}
-
-static JSValue js_function_proto_fileName(JSContext *ctx,
-                                          JSValueConst this_val)
-{
-    JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val);
-    if (b && b->has_debug) {
-        return JS_AtomToString(ctx, b->debug.filename);
-    }
-    return JS_UNDEFINED;
-}
-
-static JSValue js_function_proto_lineNumber(JSContext *ctx,
-                                            JSValueConst this_val)
-{
-    JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val);
-    if (b && b->has_debug) {
-        return JS_NewInt32(ctx, b->debug.line_num);
-    }
-    return JS_UNDEFINED;
-}
-
-static int js_arguments_define_own_property(JSContext *ctx,
-                                            JSValueConst this_obj,
-                                            JSAtom prop, JSValueConst val,
-                                            JSValueConst getter, JSValueConst setter, int flags)
-{
-    JSObject *p;
-    uint32_t idx;
-    p = JS_VALUE_GET_OBJ(this_obj);
-    /* convert to normal array when redefining an existing numeric field */
-    if (p->fast_array && JS_AtomIsArrayIndex(ctx, &idx, prop) &&
-        idx < p->u.array.count) {
-        if (convert_fast_array_to_array(ctx, p))
-            return -1;
-    }
-    /* run the default define own property */
-    return JS_DefineProperty(ctx, this_obj, prop, val, getter, setter,
-                             flags | JS_PROP_NO_EXOTIC);
-}
-
-static const JSClassExoticMethods js_arguments_exotic_methods = {
-    .define_own_property = js_arguments_define_own_property,
-};
-
-static JSValue js_build_arguments(JSContext *ctx, int argc, JSValueConst *argv)
-{
-    JSValue val, *tab;
-    JSProperty *pr;
-    JSObject *p;
-    int i;
-
-    val = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
-                                 JS_CLASS_ARGUMENTS);
-    if (JS_IsException(val))
-        return val;
-    p = JS_VALUE_GET_OBJ(val);
-
-    /* add the length field (cannot fail) */
-    pr = add_property(ctx, p, JS_ATOM_length,
-                      JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-    pr->u.value = JS_NewInt32(ctx, argc);
-
-    /* initialize the fast array part */
-    tab = NULL;
-    if (argc > 0) {
-        tab = js_malloc(ctx, sizeof(tab[0]) * argc);
-        if (!tab) {
-            JS_FreeValue(ctx, val);
-            return JS_EXCEPTION;
-        }
-        for(i = 0; i < argc; i++) {
-            tab[i] = JS_DupValue(ctx, argv[i]);
-        }
-    }
-    p->u.array.u.values = tab;
-    p->u.array.count = argc;
-
-    JS_DefinePropertyValue(ctx, val, JS_ATOM_Symbol_iterator,
-                           JS_DupValue(ctx, ctx->array_proto_values),
-                           JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE);
-    /* add callee property to throw a TypeError in strict mode */
-    JS_DefineProperty(ctx, val, JS_ATOM_callee, JS_UNDEFINED,
-                      ctx->throw_type_error, ctx->throw_type_error,
-                      JS_PROP_HAS_GET | JS_PROP_HAS_SET);
-    return val;
-}
-
-#define GLOBAL_VAR_OFFSET 0x40000000
-#define ARGUMENT_VAR_OFFSET 0x20000000
-
-/* legacy arguments object: add references to the function arguments */
-static JSValue js_build_mapped_arguments(JSContext *ctx, int argc,
-                                         JSValueConst *argv,
-                                         JSStackFrame *sf, int arg_count)
-{
-    JSValue val;
-    JSProperty *pr;
-    JSObject *p;
-    int i;
-
-    val = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
-                                 JS_CLASS_MAPPED_ARGUMENTS);
-    if (JS_IsException(val))
-        return val;
-    p = JS_VALUE_GET_OBJ(val);
-
-    /* add the length field (cannot fail) */
-    pr = add_property(ctx, p, JS_ATOM_length,
-                      JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-    pr->u.value = JS_NewInt32(ctx, argc);
-
-    for(i = 0; i < arg_count; i++) {
-        JSVarRef *var_ref;
-        var_ref = get_var_ref(ctx, sf, i, TRUE);
-        if (!var_ref)
-            goto fail;
-        pr = add_property(ctx, p, __JS_AtomFromUInt32(i), JS_PROP_C_W_E | JS_PROP_VARREF);
-        if (!pr) {
-            free_var_ref(ctx->rt, var_ref);
-            goto fail;
-        }
-        pr->u.var_ref = var_ref;
-    }
-
-    /* the arguments not mapped to the arguments of the function can
-       be normal properties */
-    for(i = arg_count; i < argc; i++) {
-        if (JS_DefinePropertyValueUint32(ctx, val, i,
-                                         JS_DupValue(ctx, argv[i]),
-                                         JS_PROP_C_W_E) < 0)
-            goto fail;
-    }
-
-    JS_DefinePropertyValue(ctx, val, JS_ATOM_Symbol_iterator,
-                           JS_DupValue(ctx, ctx->array_proto_values),
-                           JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE);
-    /* callee returns this function in non strict mode */
-    JS_DefinePropertyValue(ctx, val, JS_ATOM_callee,
-                           JS_DupValue(ctx, ctx->current_stack_frame->cur_func),
-                           JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE);
-    return val;
- fail:
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_build_rest(JSContext *ctx, int first, int argc, JSValueConst *argv)
-{
-    JSValue val;
-    int i, ret;
-
-    val = JS_NewArray(ctx);
-    if (JS_IsException(val))
-        return val;
-    for (i = first; i < argc; i++) {
-        ret = JS_DefinePropertyValueUint32(ctx, val, i - first,
-                                           JS_DupValue(ctx, argv[i]),
-                                           JS_PROP_C_W_E);
-        if (ret < 0) {
-            JS_FreeValue(ctx, val);
-            return JS_EXCEPTION;
-        }
-    }
-    return val;
-}
-
-static JSValue build_for_in_iterator(JSContext *ctx, JSValue obj)
-{
-    JSObject *p, *p1;
-    JSPropertyEnum *tab_atom;
-    int i;
-    JSValue enum_obj;
-    JSForInIterator *it;
-    uint32_t tag, tab_atom_count;
-
-    tag = JS_VALUE_GET_TAG(obj);
-    if (tag != JS_TAG_OBJECT && tag != JS_TAG_NULL && tag != JS_TAG_UNDEFINED) {
-        obj = JS_ToObjectFree(ctx, obj);
-    }
-
-    it = js_malloc(ctx, sizeof(*it));
-    if (!it) {
-        JS_FreeValue(ctx, obj);
-        return JS_EXCEPTION;
-    }
-    enum_obj = JS_NewObjectProtoClass(ctx, JS_NULL, JS_CLASS_FOR_IN_ITERATOR);
-    if (JS_IsException(enum_obj)) {
-        js_free(ctx, it);
-        JS_FreeValue(ctx, obj);
-        return JS_EXCEPTION;
-    }
-    it->is_array = FALSE;
-    it->obj = obj;
-    it->idx = 0;
-    p = JS_VALUE_GET_OBJ(enum_obj);
-    p->u.for_in_iterator = it;
-
-    if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED)
-        return enum_obj;
-
-    p = JS_VALUE_GET_OBJ(obj);
-
-    /* fast path: assume no enumerable properties in the prototype chain */
-    p1 = p->shape->proto;
-    while (p1 != NULL) {
-        if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p1,
-                                   JS_GPN_STRING_MASK | JS_GPN_ENUM_ONLY))
-            goto fail;
-        js_free_prop_enum(ctx, tab_atom, tab_atom_count);
-        if (tab_atom_count != 0) {
-            goto slow_path;
-        }
-        p1 = p1->shape->proto;
-    }
-    if (p->fast_array) {
-        JSShape *sh;
-        JSShapeProperty *prs;
-        /* check that there are no enumerable normal fields */
-        sh = p->shape;
-        for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) {
-            if (prs->flags & JS_PROP_ENUMERABLE)
-                goto normal_case;
-        }
-        /* the implicit GetOwnProperty raises an exception if the
-           typed array is detached */
-        if ((p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-             p->class_id <= JS_CLASS_FLOAT64_ARRAY) &&
-            typed_array_is_detached(ctx, p) &&
-            typed_array_get_length(ctx, p) != 0) {
-            JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-            goto fail;
-        }
-        /* for fast arrays, we only store the number of elements */
-        it->is_array = TRUE;
-        it->array_length = p->u.array.count;
-    } else {
-    normal_case:
-        if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p,
-                                   JS_GPN_STRING_MASK | JS_GPN_ENUM_ONLY))
-            goto fail;
-        for(i = 0; i < tab_atom_count; i++) {
-            JS_SetPropertyInternal(ctx, enum_obj, tab_atom[i].atom, JS_NULL, 0);
-        }
-        js_free_prop_enum(ctx, tab_atom, tab_atom_count);
-    }
-    return enum_obj;
-
- slow_path:
-    /* non enumerable properties hide the enumerables ones in the
-       prototype chain */
-    while (p != NULL) {
-        if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p,
-                                   JS_GPN_STRING_MASK | JS_GPN_SET_ENUM))
-            goto fail;
-        for(i = 0; i < tab_atom_count; i++) {
-            JS_DefinePropertyValue(ctx, enum_obj, tab_atom[i].atom, JS_NULL,
-                                   (tab_atom[i].is_enumerable ?
-                                    JS_PROP_ENUMERABLE : 0));
-        }
-        js_free_prop_enum(ctx, tab_atom, tab_atom_count);
-        p = p->shape->proto;
-    }
-    return enum_obj;
-
- fail:
-    JS_FreeValue(ctx, enum_obj);
-    return JS_EXCEPTION;
-}
-
-/* obj -> enum_obj */
-static __exception int js_for_in_start(JSContext *ctx, JSValue *sp)
-{
-    sp[-1] = build_for_in_iterator(ctx, sp[-1]);
-    if (JS_IsException(sp[-1]))
-        return -1;
-    return 0;
-}
-
-/* enum_obj -> enum_obj value done */
-static __exception int js_for_in_next(JSContext *ctx, JSValue *sp)
-{
-    JSValueConst enum_obj;
-    JSObject *p;
-    JSAtom prop;
-    JSForInIterator *it;
-    int ret;
-
-    enum_obj = sp[-1];
-    /* fail safe */
-    if (JS_VALUE_GET_TAG(enum_obj) != JS_TAG_OBJECT)
-        goto done;
-    p = JS_VALUE_GET_OBJ(enum_obj);
-    if (p->class_id != JS_CLASS_FOR_IN_ITERATOR)
-        goto done;
-    it = p->u.for_in_iterator;
-
-    for(;;) {
-        if (it->is_array) {
-            if (it->idx >= it->array_length)
-                goto done;
-            prop = __JS_AtomFromUInt32(it->idx);
-            it->idx++;
-        } else {
-            JSShape *sh = p->shape;
-            JSShapeProperty *prs;
-            if (it->idx >= sh->prop_count)
-                goto done;
-            prs = get_shape_prop(sh) + it->idx;
-            prop = prs->atom;
-            it->idx++;
-            if (prop == JS_ATOM_NULL || !(prs->flags & JS_PROP_ENUMERABLE))
-                continue;
-        }
-        /* check if the property was deleted */
-        ret = JS_HasProperty(ctx, it->obj, prop);
-        if (ret < 0)
-            return ret;
-        if (ret)
-            break;
-    }
-    /* return the property */
-    sp[0] = JS_AtomToValue(ctx, prop);
-    sp[1] = JS_FALSE;
-    return 0;
- done:
-    /* return the end */
-    sp[0] = JS_UNDEFINED;
-    sp[1] = JS_TRUE;
-    return 0;
-}
-
-static JSValue JS_GetIterator2(JSContext *ctx, JSValueConst obj,
-                               JSValueConst method)
-{
-    JSValue enum_obj;
-
-    enum_obj = JS_Call(ctx, method, obj, 0, NULL);
-    if (JS_IsException(enum_obj))
-        return enum_obj;
-    if (!JS_IsObject(enum_obj)) {
-        JS_FreeValue(ctx, enum_obj);
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    }
-    return enum_obj;
-}
-
-static JSValue JS_GetIterator(JSContext *ctx, JSValueConst obj, BOOL is_async)
-{
-    JSValue method, ret, sync_iter;
-
-    if (is_async) {
-        method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_asyncIterator);
-        if (JS_IsException(method))
-            return method;
-        if (JS_IsUndefined(method) || JS_IsNull(method)) {
-            method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_iterator);
-            if (JS_IsException(method))
-                return method;
-            sync_iter = JS_GetIterator2(ctx, obj, method);
-            JS_FreeValue(ctx, method);
-            if (JS_IsException(sync_iter))
-                return sync_iter;
-            ret = JS_CreateAsyncFromSyncIterator(ctx, sync_iter);
-            JS_FreeValue(ctx, sync_iter);
-            return ret;
-        }
-    } else {
-        method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_iterator);
-        if (JS_IsException(method))
-            return method;
-    }
-    if (!JS_IsFunction(ctx, method)) {
-        JS_FreeValue(ctx, method);
-        return JS_ThrowTypeError(ctx, "value is not iterable");
-    }
-    ret = JS_GetIterator2(ctx, obj, method);
-    JS_FreeValue(ctx, method);
-    return ret;
-}
-
-/* return *pdone = 2 if the iterator object is not parsed */
-static JSValue JS_IteratorNext2(JSContext *ctx, JSValueConst enum_obj,
-                                JSValueConst method,
-                                int argc, JSValueConst *argv, int *pdone)
-{
-    JSValue obj;
-
-    /* fast path for the built-in iterators (avoid creating the
-       intermediate result object) */
-    if (JS_IsObject(method)) {
-        JSObject *p = JS_VALUE_GET_OBJ(method);
-        if (p->class_id == JS_CLASS_C_FUNCTION &&
-            p->u.cfunc.cproto == JS_CFUNC_iterator_next) {
-            JSCFunctionType func;
-            JSValueConst args[1];
-
-            /* in case the function expects one argument */
-            if (argc == 0) {
-                args[0] = JS_UNDEFINED;
-                argv = args;
-            }
-            func = p->u.cfunc.c_function;
-            return func.iterator_next(ctx, enum_obj, argc, argv,
-                                      pdone, p->u.cfunc.magic);
-        }
-    }
-    obj = JS_Call(ctx, method, enum_obj, argc, argv);
-    if (JS_IsException(obj))
-        goto fail;
-    if (!JS_IsObject(obj)) {
-        JS_FreeValue(ctx, obj);
-        JS_ThrowTypeError(ctx, "iterator must return an object");
-        goto fail;
-    }
-    *pdone = 2;
-    return obj;
- fail:
-    *pdone = FALSE;
-    return JS_EXCEPTION;
-}
-
-static JSValue JS_IteratorNext(JSContext *ctx, JSValueConst enum_obj,
-                               JSValueConst method,
-                               int argc, JSValueConst *argv, BOOL *pdone)
-{
-    JSValue obj, value, done_val;
-    int done;
-
-    obj = JS_IteratorNext2(ctx, enum_obj, method, argc, argv, &done);
-    if (JS_IsException(obj))
-        goto fail;
-    if (done != 2) {
-        *pdone = done;
-        return obj;
-    } else {
-        done_val = JS_GetProperty(ctx, obj, JS_ATOM_done);
-        if (JS_IsException(done_val))
-            goto fail;
-        *pdone = JS_ToBoolFree(ctx, done_val);
-        value = JS_UNDEFINED;
-        if (!*pdone) {
-            value = JS_GetProperty(ctx, obj, JS_ATOM_value);
-        }
-        JS_FreeValue(ctx, obj);
-        return value;
-    }
- fail:
-    JS_FreeValue(ctx, obj);
-    *pdone = FALSE;
-    return JS_EXCEPTION;
-}
-
-/* return < 0 in case of exception */
-static int JS_IteratorClose(JSContext *ctx, JSValueConst enum_obj,
-                            BOOL is_exception_pending)
-{
-    JSValue method, ret, ex_obj;
-    int res;
-
-    if (is_exception_pending) {
-        ex_obj = ctx->current_exception;
-        ctx->current_exception = JS_NULL;
-        res = -1;
-    } else {
-        ex_obj = JS_UNDEFINED;
-        res = 0;
-    }
-    method = JS_GetProperty(ctx, enum_obj, JS_ATOM_return);
-    if (JS_IsException(method)) {
-        res = -1;
-        goto done;
-    }
-    if (JS_IsUndefined(method) || JS_IsNull(method)) {
-        goto done;
-    }
-    ret = JS_CallFree(ctx, method, enum_obj, 0, NULL);
-    if (!is_exception_pending) {
-        if (JS_IsException(ret)) {
-            res = -1;
-        } else if (!JS_IsObject(ret)) {
-            JS_ThrowTypeErrorNotAnObject(ctx);
-            res = -1;
-        }
-    }
-    JS_FreeValue(ctx, ret);
- done:
-    if (is_exception_pending) {
-        JS_Throw(ctx, ex_obj);
-    }
-    return res;
-}
-
-/* obj -> enum_rec (3 slots) */
-static __exception int js_for_of_start(JSContext *ctx, JSValue *sp,
-                                       BOOL is_async)
-{
-    JSValue op1, obj, method;
-    op1 = sp[-1];
-    obj = JS_GetIterator(ctx, op1, is_async);
-    if (JS_IsException(obj))
-        return -1;
-    JS_FreeValue(ctx, op1);
-    sp[-1] = obj;
-    method = JS_GetProperty(ctx, obj, JS_ATOM_next);
-    if (JS_IsException(method))
-        return -1;
-    sp[0] = method;
-    return 0;
-}
-
-/* enum_rec -> enum_rec value done */
-static __exception int js_for_of_next(JSContext *ctx, JSValue *sp, int offset)
-{
-    JSValue value = JS_UNDEFINED;
-    int done = 1;
-
-    if (likely(!JS_IsUndefined(sp[offset]))) {
-        value = JS_IteratorNext(ctx, sp[offset], sp[offset + 1], 0, NULL, &done);
-        if (JS_IsException(value))
-            done = -1;
-        if (done) {
-            /* value is JS_UNDEFINED or JS_EXCEPTION */
-            /* replace the iteration object with undefined */
-            JS_FreeValue(ctx, sp[offset]);
-            sp[offset] = JS_UNDEFINED;
-            if (done < 0)
-                return -1;
-        }
-    }
-    sp[0] = value;
-    sp[1] = JS_NewBool(ctx, done);
-    return 0;
-}
-
-static __exception int js_for_await_of_next(JSContext *ctx, JSValue *sp)
-{
-    JSValue result;
-    result = JS_Call(ctx, sp[-2], sp[-3], 0, NULL);
-    if (JS_IsException(result))
-        return -1;
-    sp[0] = result;
-    return 0;
-}
-
-static JSValue JS_IteratorGetCompleteValue(JSContext *ctx, JSValueConst obj,
-                                           BOOL *pdone)
-{
-    JSValue done_val, value;
-    BOOL done;
-    done_val = JS_GetProperty(ctx, obj, JS_ATOM_done);
-    if (JS_IsException(done_val))
-        goto fail;
-    done = JS_ToBoolFree(ctx, done_val);
-    value = JS_GetProperty(ctx, obj, JS_ATOM_value);
-    if (JS_IsException(value))
-        goto fail;
-    *pdone = done;
-    return value;
- fail:
-    *pdone = FALSE;
-    return JS_EXCEPTION;
-}
-
-static __exception int js_iterator_get_value_done(JSContext *ctx, JSValue *sp)
-{
-    JSValue obj, value;
-    BOOL done;
-    obj = sp[-1];
-    if (!JS_IsObject(obj)) {
-        JS_ThrowTypeError(ctx, "iterator must return an object");
-        return -1;
-    }
-    value = JS_IteratorGetCompleteValue(ctx, obj, &done);
-    if (JS_IsException(value))
-        return -1;
-    JS_FreeValue(ctx, obj);
-    sp[-1] = value;
-    sp[0] = JS_NewBool(ctx, done);
-    return 0;
-}
-
-static JSValue js_create_iterator_result(JSContext *ctx,
-                                         JSValue val,
-                                         BOOL done)
-{
-    JSValue obj;
-    obj = JS_NewObject(ctx);
-    if (JS_IsException(obj)) {
-        JS_FreeValue(ctx, val);
-        return obj;
-    }
-    if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_value,
-                               val, JS_PROP_C_W_E) < 0) {
-        goto fail;
-    }
-    if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_done,
-                               JS_NewBool(ctx, done), JS_PROP_C_W_E) < 0) {
-    fail:
-        JS_FreeValue(ctx, obj);
-        return JS_EXCEPTION;
-    }
-    return obj;
-}
-
-static JSValue js_array_iterator_next(JSContext *ctx, JSValueConst this_val,
-                                      int argc, JSValueConst *argv,
-                                      BOOL *pdone, int magic);
-
-static JSValue js_create_array_iterator(JSContext *ctx, JSValueConst this_val,
-                                        int argc, JSValueConst *argv, int magic);
-
-static BOOL js_is_fast_array(JSContext *ctx, JSValueConst obj)
-{
-    /* Try and handle fast arrays explicitly */
-    if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(obj);
-        if (p->class_id == JS_CLASS_ARRAY && p->fast_array) {
-            return TRUE;
-        }
-    }
-    return FALSE;
-}
-
-/* Access an Array's internal JSValue array if available */
-static BOOL js_get_fast_array(JSContext *ctx, JSValueConst obj,
-                              JSValue **arrpp, uint32_t *countp)
-{
-    /* Try and handle fast arrays explicitly */
-    if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(obj);
-        if (p->class_id == JS_CLASS_ARRAY && p->fast_array) {
-            *countp = p->u.array.count;
-            *arrpp = p->u.array.u.values;
-            return TRUE;
-        }
-    }
-    return FALSE;
-}
-
-static __exception int js_append_enumerate(JSContext *ctx, JSValue *sp)
-{
-    JSValue iterator, enumobj, method, value;
-    int pos, is_array_iterator;
-    JSValue *arrp;
-    uint32_t i, count32;
-
-    if (JS_VALUE_GET_TAG(sp[-2]) != JS_TAG_INT) {
-        JS_ThrowInternalError(ctx, "invalid index for append");
-        return -1;
-    }
-
-    pos = JS_VALUE_GET_INT(sp[-2]);
-
-    /* XXX: further optimisations:
-       - use ctx->array_proto_values?
-       - check if array_iterator_prototype next method is built-in and
-         avoid constructing actual iterator object?
-       - build this into js_for_of_start and use in all `for (x of o)` loops
-     */
-    iterator = JS_GetProperty(ctx, sp[-1], JS_ATOM_Symbol_iterator);
-    if (JS_IsException(iterator))
-        return -1;
-    is_array_iterator = JS_IsCFunction(ctx, iterator,
-                                       (JSCFunction *)js_create_array_iterator,
-                                       JS_ITERATOR_KIND_VALUE);
-    JS_FreeValue(ctx, iterator);
-
-    enumobj = JS_GetIterator(ctx, sp[-1], FALSE);
-    if (JS_IsException(enumobj))
-        return -1;
-    method = JS_GetProperty(ctx, enumobj, JS_ATOM_next);
-    if (JS_IsException(method)) {
-        JS_FreeValue(ctx, enumobj);
-        return -1;
-    }
-    if (is_array_iterator
-    &&  JS_IsCFunction(ctx, method, (JSCFunction *)js_array_iterator_next, 0)
-    &&  js_get_fast_array(ctx, sp[-1], &arrp, &count32)) {
-        int64_t len;
-        /* Handle fast arrays explicitly */
-        if (js_get_length64(ctx, &len, sp[-1]))
-            goto exception;
-        for (i = 0; i < count32; i++) {
-            if (JS_DefinePropertyValueUint32(ctx, sp[-3], pos++,
-                                             JS_DupValue(ctx, arrp[i]), JS_PROP_C_W_E) < 0)
-                goto exception;
-        }
-        if (len > count32) {
-            /* This is not strictly correct because the trailing elements are
-               empty instead of undefined. Append undefined entries instead.
-             */
-            pos += len - count32;
-            if (JS_SetProperty(ctx, sp[-3], JS_ATOM_length, JS_NewUint32(ctx, pos)) < 0)
-                goto exception;
-        }
-    } else {
-        for (;;) {
-            BOOL done;
-            value = JS_IteratorNext(ctx, enumobj, method, 0, NULL, &done);
-            if (JS_IsException(value))
-                goto exception;
-            if (done) {
-                /* value is JS_UNDEFINED */
-                break;
-            }
-            if (JS_DefinePropertyValueUint32(ctx, sp[-3], pos++, value, JS_PROP_C_W_E) < 0)
-                goto exception;
-        }
-    }
-    sp[-2] = JS_NewInt32(ctx, pos);
-    JS_FreeValue(ctx, enumobj);
-    JS_FreeValue(ctx, method);
-    return 0;
-
-exception:
-    JS_IteratorClose(ctx, enumobj, TRUE);
-    JS_FreeValue(ctx, enumobj);
-    JS_FreeValue(ctx, method);
-    return -1;
-}
-
-static __exception int JS_CopyDataProperties(JSContext *ctx,
-                                             JSValueConst target,
-                                             JSValueConst source,
-                                             JSValueConst excluded,
-                                             BOOL setprop)
-{
-    JSPropertyEnum *tab_atom;
-    JSValue val;
-    uint32_t i, tab_atom_count;
-    JSObject *p;
-    JSObject *pexcl = NULL;
-    int ret = 0, flags;
-
-    if (JS_VALUE_GET_TAG(source) != JS_TAG_OBJECT)
-        return 0;
-
-    if (JS_VALUE_GET_TAG(excluded) == JS_TAG_OBJECT)
-        pexcl = JS_VALUE_GET_OBJ(excluded);
-
-    p = JS_VALUE_GET_OBJ(source);
-    if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p,
-                               JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK |
-                               JS_GPN_ENUM_ONLY))
-        return -1;
-
-    flags = JS_PROP_C_W_E;
-
-    for (i = 0; i < tab_atom_count; i++) {
-        if (pexcl) {
-            ret = JS_GetOwnPropertyInternal(ctx, NULL, pexcl, tab_atom[i].atom);
-            if (ret) {
-                if (ret < 0)
-                    break;
-                ret = 0;
-                continue;
-            }
-        }
-        ret = -1;
-        val = JS_GetProperty(ctx, source, tab_atom[i].atom);
-        if (JS_IsException(val))
-            break;
-        if (setprop)
-            ret = JS_SetProperty(ctx, target, tab_atom[i].atom, val);
-        else
-            ret = JS_DefinePropertyValue(ctx, target, tab_atom[i].atom, val, flags);
-        if (ret < 0)
-            break;
-        ret = 0;
-    }
-    js_free_prop_enum(ctx, tab_atom, tab_atom_count);
-    return ret;
-}
-
-/* only valid inside C functions */
-static JSValueConst JS_GetActiveFunction(JSContext *ctx)
-{
-    return ctx->current_stack_frame->cur_func;
-}
-
-static JSVarRef *get_var_ref(JSContext *ctx, JSStackFrame *sf,
-                             int var_idx, BOOL is_arg)
-{
-    JSVarRef *var_ref;
-    struct list_head *el;
-
-    list_for_each(el, &sf->var_ref_list) {
-        var_ref = list_entry(el, JSVarRef, link);
-        if (var_ref->var_idx == var_idx && var_ref->is_arg == is_arg) {
-            var_ref->header.ref_count++;
-            return var_ref;
-        }
-    }
-    /* create a new one */
-    var_ref = js_malloc(ctx, sizeof(JSVarRef));
-    if (!var_ref)
-        return NULL;
-    var_ref->header.ref_count = 1;
-    var_ref->gc_header.mark = 0;
-    var_ref->is_arg = is_arg;
-    var_ref->var_idx = var_idx;
-    list_add_tail(&var_ref->link, &sf->var_ref_list);
-    if (is_arg)
-        var_ref->pvalue = &sf->arg_buf[var_idx];
-    else
-        var_ref->pvalue = &sf->var_buf[var_idx];
-    var_ref->value = JS_UNDEFINED;
-    return var_ref;
-}
-
-static JSValue js_closure2(JSContext *ctx, JSValue func_obj,
-                           JSFunctionBytecode *b,
-                           JSVarRef **cur_var_refs,
-                           JSStackFrame *sf)
-{
-    JSObject *p;
-    JSVarRef **var_refs;
-    int i;
-
-    p = JS_VALUE_GET_OBJ(func_obj);
-    p->u.func.function_bytecode = b;
-    p->u.func.home_object = NULL;
-    p->u.func.var_refs = NULL;
-    if (b->closure_var_count) {
-        var_refs = js_mallocz(ctx, sizeof(var_refs[0]) * b->closure_var_count);
-        if (!var_refs)
-            goto fail;
-        p->u.func.var_refs = var_refs;
-        for(i = 0; i < b->closure_var_count; i++) {
-            JSClosureVar *cv = &b->closure_var[i];
-            JSVarRef *var_ref;
-            if (cv->is_local) {
-                /* reuse the existing variable reference if it already exists */
-                var_ref = get_var_ref(ctx, sf, cv->var_idx, cv->is_arg);
-                if (!var_ref)
-                    goto fail;
-            } else {
-                var_ref = cur_var_refs[cv->var_idx];
-                var_ref->header.ref_count++;
-            }
-            var_refs[i] = var_ref;
-        }
-    }
-    return func_obj;
- fail:
-    /* bfunc is freed when func_obj is freed */
-    JS_FreeValue(ctx, func_obj);
-    return JS_EXCEPTION;
-}
-
-static int js_instantiate_prototype(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque)
-{
-    JSValue obj, this_val;
-    int ret;
-
-    this_val = JS_MKPTR(JS_TAG_OBJECT, p);
-    obj = JS_NewObject(ctx);
-    if (JS_IsException(obj))
-        return -1;
-    set_cycle_flag(ctx, obj);
-    set_cycle_flag(ctx, this_val);
-    ret = JS_DefinePropertyValue(ctx, obj, JS_ATOM_constructor,
-                                 JS_DupValue(ctx, this_val),
-                                 JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-    if (JS_DefinePropertyValue(ctx, this_val, atom, obj, JS_PROP_WRITABLE) < 0 || ret < 0)
-        return -1;
-    return 0;
-}
-
-static JSValue js_closure(JSContext *ctx, JSValue bfunc,
-                          JSVarRef **cur_var_refs,
-                          JSStackFrame *sf)
-{
-    JSFunctionBytecode *b;
-    JSValue name_val, func_obj;
-    JSAtom name_atom;
-    static const uint16_t func_kind_to_class_id[] = {
-        [JS_FUNC_NORMAL] = JS_CLASS_BYTECODE_FUNCTION,
-        [JS_FUNC_GENERATOR] = JS_CLASS_GENERATOR_FUNCTION,
-        [JS_FUNC_ASYNC] = JS_CLASS_ASYNC_FUNCTION,
-        [JS_FUNC_ASYNC_GENERATOR] = JS_CLASS_ASYNC_GENERATOR_FUNCTION,
-    };
-
-    b = JS_VALUE_GET_PTR(bfunc);
-    func_obj = JS_NewObjectClass(ctx, func_kind_to_class_id[b->func_kind]);
-    if (JS_IsException(func_obj)) {
-        JS_FreeValue(ctx, bfunc);
-        return JS_EXCEPTION;
-    }
-    func_obj = js_closure2(ctx, func_obj, b, cur_var_refs, sf);
-    if (JS_IsException(func_obj)) {
-        /* bfunc has been freed */
-        goto fail;
-    }
-    name_val = JS_UNDEFINED;
-    name_atom = b->func_name;
-    if (name_atom != JS_ATOM_NULL)
-        name_val = JS_AtomToString(ctx, name_atom);
-    js_function_set_properties(ctx, func_obj, name_val,
-                               b->defined_arg_count);
-
-    if (b->func_kind & JS_FUNC_GENERATOR) {
-        JSValue proto;
-        int proto_class_id;
-        /* generators have a prototype field which is used as
-           prototype for the generator object */
-        if (b->func_kind == JS_FUNC_ASYNC_GENERATOR)
-            proto_class_id = JS_CLASS_ASYNC_GENERATOR;
-        else
-            proto_class_id = JS_CLASS_GENERATOR;
-        proto = JS_NewObjectProto(ctx, ctx->class_proto[proto_class_id]);
-        if (JS_IsException(proto))
-            goto fail;
-        JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_prototype, proto,
-                               JS_PROP_WRITABLE);
-    } else if (b->has_prototype) {
-        /* add the 'prototype' property: delay instantiation to avoid
-           creating cycles for every javascript function. The prototype
-           object is created on the fly when first accessed */
-        JS_SetConstructorBit(ctx, func_obj, TRUE);
-        JS_DefineAutoInitProperty(ctx, func_obj, JS_ATOM_prototype,
-                                  js_instantiate_prototype, NULL,
-                                  JS_PROP_WRITABLE);
-    }
-    return func_obj;
- fail:
-    /* bfunc is freed when func_obj is freed */
-    JS_FreeValue(ctx, func_obj);
-    return JS_EXCEPTION;
-}
-
-#define JS_DEFINE_CLASS_HAS_HERITAGE     (1 << 0)
-
-static int js_op_define_class(JSContext *ctx, JSValue *sp,
-                              JSAtom class_name, int class_flags,
-                              JSVarRef **cur_var_refs,
-                              JSStackFrame *sf)
-{
-    JSValue bfunc, parent_class, proto = JS_UNDEFINED;
-    JSValue ctor = JS_UNDEFINED, parent_proto = JS_UNDEFINED;
-    JSFunctionBytecode *b;
-
-    parent_class = sp[-2];
-    bfunc = sp[-1];
-
-    if (class_flags & JS_DEFINE_CLASS_HAS_HERITAGE) {
-        if (JS_IsNull(parent_class)) {
-            parent_proto = JS_NULL;
-            parent_class = JS_DupValue(ctx, ctx->function_proto);
-        } else {
-            if (!JS_IsConstructor(ctx, parent_class)) {
-                JS_ThrowTypeError(ctx, "parent class must be constructor");
-                goto fail;
-            }
-            parent_proto = JS_GetProperty(ctx, parent_class, JS_ATOM_prototype);
-            if (JS_IsException(parent_proto))
-                goto fail;
-            if (!JS_IsNull(parent_proto) && !JS_IsObject(parent_proto)) {
-                JS_ThrowTypeError(ctx, "parent prototype must be an object or null");
-                goto fail;
-            }
-        }
-    } else {
-        /* parent_class is JS_UNDEFINED in this case */
-        parent_proto = JS_DupValue(ctx, ctx->class_proto[JS_CLASS_OBJECT]);
-        parent_class = JS_DupValue(ctx, ctx->function_proto);
-    }
-    proto = JS_NewObjectProto(ctx, parent_proto);
-    if (JS_IsException(proto))
-        goto fail;
-
-    b = JS_VALUE_GET_PTR(bfunc);
-    assert(b->func_kind == JS_FUNC_NORMAL);
-    ctor = JS_NewObjectProtoClass(ctx, parent_class,
-                                  JS_CLASS_BYTECODE_FUNCTION);
-    if (JS_IsException(ctor))
-        goto fail;
-    ctor = js_closure2(ctx, ctor, b, cur_var_refs, sf);
-    bfunc = JS_UNDEFINED;
-    if (JS_IsException(ctor))
-        goto fail;
-    js_method_set_home_object(ctx, ctor, proto);
-    JS_SetConstructorBit(ctx, ctor, TRUE);
-
-    JS_DefinePropertyValue(ctx, ctor, JS_ATOM_length,
-                           JS_NewInt32(ctx, b->defined_arg_count),
-                           JS_PROP_CONFIGURABLE);
-
-    /* the constructor property must be first. It can be overriden by
-       computed property names */
-    if (JS_DefinePropertyValue(ctx, proto, JS_ATOM_constructor,
-                               JS_DupValue(ctx, ctor),
-                               JS_PROP_CONFIGURABLE |
-                               JS_PROP_WRITABLE | JS_PROP_THROW) < 0)
-        goto fail;
-    /* set the prototype property */
-    if (JS_DefinePropertyValue(ctx, ctor, JS_ATOM_prototype,
-                               JS_DupValue(ctx, proto), JS_PROP_THROW) < 0)
-        goto fail;
-    set_cycle_flag(ctx, ctor);
-    set_cycle_flag(ctx, proto);
-
-    if (class_name != JS_ATOM_NULL) {
-        if (JS_DefineObjectName(ctx, ctor, class_name, JS_PROP_CONFIGURABLE) < 0)
-            goto fail;
-    }
-    
-    JS_FreeValue(ctx, parent_proto);
-    JS_FreeValue(ctx, parent_class);
-
-    sp[-2] = ctor;
-    sp[-1] = proto;
-    return 0;
- fail:
-    JS_FreeValue(ctx, parent_class);
-    JS_FreeValue(ctx, parent_proto);
-    JS_FreeValue(ctx, bfunc);
-    JS_FreeValue(ctx, proto);
-    JS_FreeValue(ctx, ctor);
-    sp[-2] = JS_UNDEFINED;
-    sp[-1] = JS_UNDEFINED;
-    return -1;
-}
-
-static void close_var_refs(JSRuntime *rt, JSStackFrame *sf)
-{
-    struct list_head *el, *el1;
-    JSVarRef *var_ref;
-    int var_idx;
-
-    list_for_each_safe(el, el1, &sf->var_ref_list) {
-        var_ref = list_entry(el, JSVarRef, link);
-        var_idx = var_ref->var_idx;
-        if (var_ref->is_arg)
-            var_ref->value = JS_DupValueRT(rt, sf->arg_buf[var_idx]);
-        else
-            var_ref->value = JS_DupValueRT(rt, sf->var_buf[var_idx]);
-        var_ref->pvalue = &var_ref->value;
-        var_ref->link.prev = NULL; /* the reference is no longer to a
-                                      local variable */
-    }
-}
-
-static void close_lexical_var(JSContext *ctx, JSStackFrame *sf, int idx, int is_arg)
-{
-    struct list_head *el, *el1;
-    JSVarRef *var_ref;
-    int var_idx = idx;
-
-    list_for_each_safe(el, el1, &sf->var_ref_list) {
-        var_ref = list_entry(el, JSVarRef, link);
-        if (var_idx == var_ref->var_idx && var_ref->is_arg == is_arg) {
-            var_ref->value = JS_DupValue(ctx, sf->var_buf[var_idx]);
-            var_ref->pvalue = &var_ref->value;
-            list_del(&var_ref->link);
-            var_ref->link.prev = NULL; /* the reference is no longer to a
-                                          local variable */
-        }
-    }
-}
-
-#define CALL_FLAG_CONSTRUCTOR (1 << 0)
-#define CALL_FLAG_COPY_ARGV   (1 << 1)
-#define CALL_FLAG_GENERATOR   (1 << 2)
-
-static JSValue js_call_c_function(JSContext *ctx, JSValueConst func_obj,
-                                  JSValueConst this_obj,
-                                  int argc, JSValueConst *argv, int flags)
-{
-    JSCFunctionType func;
-    JSObject *p;
-    JSStackFrame sf_s, *sf = &sf_s, *prev_sf;
-    JSValue ret_val;
-    JSValueConst *arg_buf;
-    int arg_count, i;
-    JSCFunctionEnum cproto;
-
-    p = JS_VALUE_GET_OBJ(func_obj);
-    cproto = p->u.cfunc.cproto;
-    arg_count = p->u.cfunc.length;
-
-    /* better to always check stack overflow */
-    if (js_check_stack_overflow(ctx, sizeof(arg_buf[0]) * arg_count))
-        return JS_ThrowStackOverflow(ctx);
-
-    prev_sf = ctx->current_stack_frame;
-    sf->prev_frame = prev_sf;
-    ctx->current_stack_frame = sf;
-#ifdef CONFIG_BIGNUM
-    /* we only propagate the bignum mode as some runtime functions
-       test it */
-    if (prev_sf)
-        sf->js_mode = prev_sf->js_mode & JS_MODE_BIGINT;
-    else
-        sf->js_mode = 0;
-#else
-    sf->js_mode = 0;
-#endif
-    sf->cur_func = (JSValue)func_obj;
-    sf->arg_count = argc;
-    arg_buf = argv;
-
-    if (unlikely(argc < arg_count)) {
-        /* ensure that at least argc_count arguments are readable */
-        arg_buf = alloca(sizeof(arg_buf[0]) * arg_count);
-        for(i = 0; i < argc; i++)
-            arg_buf[i] = argv[i];
-        for(i = argc; i < arg_count; i++)
-            arg_buf[i] = JS_UNDEFINED;
-        sf->arg_count = arg_count;
-    }
-    sf->arg_buf = (JSValue*)arg_buf;
-
-    func = p->u.cfunc.c_function;
-    switch(cproto) {
-    case JS_CFUNC_constructor:
-    case JS_CFUNC_constructor_or_func:
-        if (!(flags & CALL_FLAG_CONSTRUCTOR)) {
-            if (cproto == JS_CFUNC_constructor) {
-            not_a_constructor:
-                ret_val = JS_ThrowTypeError(ctx, "must be called with new");
-                break;
-            } else {
-                this_obj = JS_UNDEFINED;
-            }
-        }
-        /* here this_obj is new_target */
-        /* fall thru */
-    case JS_CFUNC_generic:
-        ret_val = func.generic(ctx, this_obj, argc, arg_buf);
-        break;
-    case JS_CFUNC_constructor_magic:
-    case JS_CFUNC_constructor_or_func_magic:
-        if (!(flags & CALL_FLAG_CONSTRUCTOR)) {
-            if (cproto == JS_CFUNC_constructor_magic) {
-                goto not_a_constructor;
-            } else {
-                this_obj = JS_UNDEFINED;
-            }
-        }
-        /* fall thru */
-    case JS_CFUNC_generic_magic:
-        ret_val = func.generic_magic(ctx, this_obj, argc, arg_buf,
-                                     p->u.cfunc.magic);
-        break;
-    case JS_CFUNC_getter:
-        ret_val = func.getter(ctx, this_obj);
-        break;
-    case JS_CFUNC_setter:
-        ret_val = func.setter(ctx, this_obj, arg_buf[0]);
-        break;
-    case JS_CFUNC_getter_magic:
-        ret_val = func.getter_magic(ctx, this_obj, p->u.cfunc.magic);
-        break;
-    case JS_CFUNC_setter_magic:
-        ret_val = func.setter_magic(ctx, this_obj, arg_buf[0], p->u.cfunc.magic);
-        break;
-    case JS_CFUNC_f_f:
-        {
-            double d1;
-
-            if (unlikely(JS_ToFloat64(ctx, &d1, arg_buf[0]))) {
-                ret_val = JS_EXCEPTION;
-                break;
-            }
-            ret_val = JS_NewFloat64(ctx, func.f_f(d1));
-        }
-        break;
-    case JS_CFUNC_f_f_f:
-        {
-            double d1, d2;
-
-            if (unlikely(JS_ToFloat64(ctx, &d1, arg_buf[0]))) {
-                ret_val = JS_EXCEPTION;
-                break;
-            }
-            if (unlikely(JS_ToFloat64(ctx, &d2, arg_buf[1]))) {
-                ret_val = JS_EXCEPTION;
-                break;
-            }
-            ret_val = JS_NewFloat64(ctx, func.f_f_f(d1, d2));
-        }
-        break;
-    case JS_CFUNC_iterator_next:
-        {
-            int done;
-            ret_val = func.iterator_next(ctx, this_obj, argc, arg_buf,
-                                         &done, p->u.cfunc.magic);
-            if (!JS_IsException(ret_val) && done != 2) {
-                ret_val = js_create_iterator_result(ctx, ret_val, done);
-            }
-        }
-        break;
-    default:
-        abort();
-    }
-
-    ctx->current_stack_frame = sf->prev_frame;
-    return ret_val;
-}
-
-static JSValue js_call_bound_function(JSContext *ctx, JSValueConst func_obj,
-                                      JSValueConst this_obj,
-                                      int argc, JSValueConst *argv, int flags)
-{
-    JSObject *p;
-    JSBoundFunction *bf;
-    JSValueConst *arg_buf, new_target;
-    int arg_count, i;
-
-    p = JS_VALUE_GET_OBJ(func_obj);
-    bf = p->u.bound_function;
-    arg_count = bf->argc + argc;
-    if (js_check_stack_overflow(ctx, sizeof(JSValue) * arg_count))
-        return JS_ThrowStackOverflow(ctx);
-    arg_buf = alloca(sizeof(JSValue) * arg_count);
-    for(i = 0; i < bf->argc; i++) {
-        arg_buf[i] = bf->argv[i];
-    }
-    for(i = 0; i < argc; i++) {
-        arg_buf[bf->argc + i] = argv[i];
-    }
-    if (flags & CALL_FLAG_CONSTRUCTOR) {
-        new_target = this_obj;
-        if (js_same_value(ctx, func_obj, new_target))
-            new_target = bf->func_obj;
-        return JS_CallConstructor2(ctx, bf->func_obj, new_target,
-                                   arg_count, arg_buf);
-    } else {
-        return JS_Call(ctx, bf->func_obj, bf->this_val,
-                       arg_count, arg_buf);
-    }
-}
-
-static no_inline __exception int __js_poll_interrupts(JSContext *ctx)
-{
-    JSRuntime *rt = ctx->rt;
-    ctx->interrupt_counter = JS_INTERRUPT_COUNTER_INIT;
-    if (rt->interrupt_handler) {
-        if (rt->interrupt_handler(rt, rt->interrupt_opaque)) {
-            /* XXX: should set a specific flag to avoid catching */
-            JS_ThrowInternalError(ctx, "interrupted");
-            JS_SetUncatchableError(ctx, ctx->current_exception, TRUE);
-            return -1;
-        }
-    }
-    return 0;
-}
-
-static inline __exception int js_poll_interrupts(JSContext *ctx)
-{
-    if (unlikely(--ctx->interrupt_counter <= 0)) {
-        return __js_poll_interrupts(ctx);
-    } else {
-        return 0;
-    }
-}
-
-/* argument of OP_special_object */
-typedef enum {
-    OP_SPECIAL_OBJECT_ARGUMENTS,
-    OP_SPECIAL_OBJECT_MAPPED_ARGUMENTS,
-    OP_SPECIAL_OBJECT_THIS_FUNC,
-    OP_SPECIAL_OBJECT_NEW_TARGET,
-    OP_SPECIAL_OBJECT_HOME_OBJECT,
-    OP_SPECIAL_OBJECT_VAR_OBJECT,
-} OPSpecialObjectEnum;
-
-#define FUNC_RET_AWAIT      0
-#define FUNC_RET_YIELD      1
-#define FUNC_RET_YIELD_STAR 2
-
-/* argv[] is modified if (flags & CALL_FLAG_COPY_ARGV) = 0. */
-static JSValue JS_CallInternal(JSContext *ctx, JSValueConst func_obj,
-                               JSValueConst this_obj, JSValueConst new_target,
-                               int argc, JSValue *argv, int flags)
-{
-    JSObject *p;
-    JSFunctionBytecode *b;
-    JSStackFrame sf_s, *sf = &sf_s;
-    const uint8_t *pc;
-    int opcode, arg_allocated_size, i;
-    JSValue *local_buf, *stack_buf, *var_buf, *arg_buf, *sp, ret_val, *pval;
-    JSVarRef **var_refs;
-    size_t alloca_size;
-
-#if !DIRECT_DISPATCH
-#define SWITCH(pc)      switch (opcode = *pc++)
-#define CASE(op)        case op
-#define DEFAULT         default
-#define BREAK           break
-#else
-    static const void * const dispatch_table[256] = {
-#define DEF(id, size, n_pop, n_push, f) && case_OP_ ## id,
-#if SHORT_OPCODES
-#define def(id, size, n_pop, n_push, f)
-#else                                                     
-#define def(id, size, n_pop, n_push, f) && case_default,
-#endif
-#include "quickjs-opcode.h"
-        [ OP_COUNT ... 255 ] = &&case_default
-    };
-#define SWITCH(pc)      goto *dispatch_table[opcode = *pc++];
-#define CASE(op)        case_ ## op
-#define DEFAULT         case_default
-#define BREAK           SWITCH(pc)
-#endif
-
-    if (js_poll_interrupts(ctx))
-        return JS_EXCEPTION;
-    if (unlikely(JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)) {
-        if (flags & CALL_FLAG_GENERATOR) {
-            JSAsyncFunctionState *s = JS_VALUE_GET_PTR(func_obj);
-            /* func_obj get contains a pointer to JSFuncAsyncState */
-            /* the stack frame is already allocated */
-            sf = &s->frame;
-            p = JS_VALUE_GET_OBJ(sf->cur_func);
-            b = p->u.func.function_bytecode;
-            var_refs = p->u.func.var_refs;
-            local_buf = arg_buf = sf->arg_buf;
-            var_buf = sf->var_buf;
-            stack_buf = sf->var_buf + b->var_count;
-            sp = sf->cur_sp;
-            sf->cur_sp = NULL; /* cur_sp is NULL if the function is running */
-            pc = sf->cur_pc;
-            sf->prev_frame = ctx->current_stack_frame;
-            ctx->current_stack_frame = sf;
-            if (s->throw_flag)
-                goto exception;
-            else
-                goto restart;
-        } else {
-            goto not_a_function;
-        }
-    }
-    p = JS_VALUE_GET_OBJ(func_obj);
-    if (unlikely(p->class_id != JS_CLASS_BYTECODE_FUNCTION)) {
-        switch(p->class_id) {
-        case JS_CLASS_C_FUNCTION:
-            return js_call_c_function(ctx, func_obj, this_obj, argc,
-                                      (JSValueConst *)argv, flags);
-        case JS_CLASS_BOUND_FUNCTION:
-            return js_call_bound_function(ctx, func_obj, this_obj, argc,
-                                          (JSValueConst *)argv, flags);
-        default:
-            {
-                JSClassCall *call_func;
-                call_func = ctx->rt->class_array[p->class_id].call;
-                if (!call_func) {
-                not_a_function:
-                    return JS_ThrowTypeError(ctx, "not a function");
-                }
-                return call_func(ctx, func_obj, this_obj, argc,
-                                 (JSValueConst *)argv);
-            }
-        }
-    }
-    b = p->u.func.function_bytecode;
-
-    if (unlikely(argc < b->arg_count || (flags & CALL_FLAG_COPY_ARGV))) {
-        arg_allocated_size = b->arg_count;
-    } else {
-        arg_allocated_size = 0;
-    }
-
-    alloca_size = sizeof(JSValue) * (arg_allocated_size + b->var_count +
-                                     b->stack_size);
-    if (js_check_stack_overflow(ctx, alloca_size))
-        return JS_ThrowStackOverflow(ctx);
-
-    sf->js_mode = b->js_mode;
-    arg_buf = argv;
-    sf->arg_count = argc;
-    sf->cur_func = (JSValue)func_obj;
-    init_list_head(&sf->var_ref_list);
-    var_refs = p->u.func.var_refs;
-
-    local_buf = alloca(alloca_size);
-    if (unlikely(arg_allocated_size)) {
-        int n = min_int(argc, b->arg_count);
-        arg_buf = local_buf;
-        for(i = 0; i < n; i++)
-            arg_buf[i] = JS_DupValue(ctx, argv[i]);
-        for(; i < b->arg_count; i++)
-            arg_buf[i] = JS_UNDEFINED;
-        sf->arg_count = b->arg_count;
-    }
-    var_buf = local_buf + arg_allocated_size;
-    sf->var_buf = var_buf;
-    sf->arg_buf = arg_buf;
-
-    for(i = 0; i < b->var_count; i++)
-        var_buf[i] = JS_UNDEFINED;
-
-    stack_buf = var_buf + b->var_count;
-    sp = stack_buf;
-    pc = b->byte_code_buf;
-    sf->prev_frame = ctx->current_stack_frame;
-    ctx->current_stack_frame = sf;
- restart:
-    for(;;) {
-        int call_argc;
-        JSValue *call_argv;
-
-        SWITCH(pc) {
-        CASE(OP_push_i32):
-            *sp++ = JS_NewInt32(ctx, get_u32(pc));
-            pc += 4;
-            BREAK;
-        CASE(OP_push_const):
-            *sp++ = JS_DupValue(ctx, b->cpool[get_u32(pc)]);
-            pc += 4;
-            BREAK;
-#if SHORT_OPCODES
-        CASE(OP_push_minus1):
-        CASE(OP_push_0):
-        CASE(OP_push_1):
-        CASE(OP_push_2):
-        CASE(OP_push_3):
-        CASE(OP_push_4):
-        CASE(OP_push_5):
-        CASE(OP_push_6):
-        CASE(OP_push_7):
-            *sp++ = JS_NewInt32(ctx, opcode - OP_push_0);
-            BREAK;
-        CASE(OP_push_i8):
-            *sp++ = JS_NewInt32(ctx, get_i8(pc));
-            pc += 1;
-            BREAK;
-        CASE(OP_push_i16):
-            *sp++ = JS_NewInt32(ctx, get_i16(pc));
-            pc += 2;
-            BREAK;
-        CASE(OP_push_const8):
-            *sp++ = JS_DupValue(ctx, b->cpool[*pc++]);
-            BREAK;
-        CASE(OP_fclosure8):
-            *sp++ = js_closure(ctx, JS_DupValue(ctx, b->cpool[*pc++]), var_refs, sf);
-            if (unlikely(JS_IsException(sp[-1])))
-                goto exception;
-            BREAK;
-        CASE(OP_push_empty_string):
-            *sp++ = JS_AtomToString(ctx, JS_ATOM_empty_string);
-            BREAK;
-        CASE(OP_get_length):
-            {
-                JSValue val;
-
-                val = JS_GetProperty(ctx, sp[-1], JS_ATOM_length);
-                if (unlikely(JS_IsException(val)))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-                sp[-1] = val;
-            }
-            BREAK;
-#endif
-        CASE(OP_push_atom_value):
-            *sp++ = JS_AtomToValue(ctx, get_u32(pc));
-            pc += 4;
-            BREAK;
-        CASE(OP_undefined):
-            *sp++ = JS_UNDEFINED;
-            BREAK;
-        CASE(OP_null):
-            *sp++ = JS_NULL;
-            BREAK;
-        CASE(OP_push_this):
-            /* OP_push_this is only called at the start of a function */
-            {
-                JSValue val;
-                if (!(b->js_mode & JS_MODE_STRICT)) {
-                    uint32_t tag = JS_VALUE_GET_TAG(this_obj);
-                    if (likely(tag == JS_TAG_OBJECT))
-                        goto normal_this;
-                    if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED) {
-                        val = JS_DupValue(ctx, ctx->global_obj);
-                    } else {
-                        val = JS_ToObject(ctx, this_obj);
-                        if (JS_IsException(val))
-                            goto exception;
-                    }
-                } else {
-                normal_this:
-                    val = JS_DupValue(ctx, this_obj);
-                }
-                *sp++ = val;
-            }
-            BREAK;
-        CASE(OP_push_false):
-            *sp++ = JS_FALSE;
-            BREAK;
-        CASE(OP_push_true):
-            *sp++ = JS_TRUE;
-            BREAK;
-        CASE(OP_object):
-            *sp++ = JS_NewObject(ctx);
-            if (unlikely(JS_IsException(sp[-1])))
-                goto exception;
-            BREAK;
-        CASE(OP_special_object):
-            {
-                int arg = *pc++;
-                switch(arg) {
-                case OP_SPECIAL_OBJECT_ARGUMENTS:
-                    *sp++ = js_build_arguments(ctx, argc, (JSValueConst *)argv);
-                    if (unlikely(JS_IsException(sp[-1])))
-                        goto exception;
-                    break;
-                case OP_SPECIAL_OBJECT_MAPPED_ARGUMENTS:
-                    *sp++ = js_build_mapped_arguments(ctx, argc, (JSValueConst *)argv,
-                                                      sf, min_int(argc, b->arg_count));
-                    if (unlikely(JS_IsException(sp[-1])))
-                        goto exception;
-                    break;
-                case OP_SPECIAL_OBJECT_THIS_FUNC:
-                    *sp++ = JS_DupValue(ctx, sf->cur_func);
-                    break;
-                case OP_SPECIAL_OBJECT_NEW_TARGET:
-                    *sp++ = JS_DupValue(ctx, new_target);
-                    break;
-                case OP_SPECIAL_OBJECT_HOME_OBJECT:
-                    {
-                        JSObject *p1;
-                        p1 = p->u.func.home_object;
-                        if (unlikely(!p1))
-                            *sp++ = JS_UNDEFINED;
-                        else
-                            *sp++ = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1));
-                    }
-                    break;
-                case OP_SPECIAL_OBJECT_VAR_OBJECT:
-                    *sp++ = JS_NewObjectProto(ctx, JS_NULL);
-                    if (unlikely(JS_IsException(sp[-1])))
-                        goto exception;
-                    break;
-                default:
-                    abort();
-                }
-            }
-            BREAK;
-        CASE(OP_rest):
-            {
-                int first = get_u16(pc);
-                pc += 2;
-                *sp++ = js_build_rest(ctx, first, argc, (JSValueConst *)argv);
-                if (unlikely(JS_IsException(sp[-1])))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_drop):
-            JS_FreeValue(ctx, sp[-1]);
-            sp--;
-            BREAK;
-        CASE(OP_nip):
-            JS_FreeValue(ctx, sp[-2]);
-            sp[-2] = sp[-1];
-            sp--;
-            BREAK;
-        CASE(OP_nip1): /* a b c -> b c */
-            JS_FreeValue(ctx, sp[-3]);
-            sp[-3] = sp[-2];
-            sp[-2] = sp[-1];
-            sp--;
-            BREAK;
-        CASE(OP_dup):
-            sp[0] = JS_DupValue(ctx, sp[-1]);
-            sp++;
-            BREAK;
-        CASE(OP_dup2): /* a b -> a b a b */
-            sp[0] = JS_DupValue(ctx, sp[-2]);
-            sp[1] = JS_DupValue(ctx, sp[-1]);
-            sp += 2;
-            BREAK;
-        CASE(OP_dup3): /* a b c -> a b c a b c */
-            sp[0] = JS_DupValue(ctx, sp[-3]);
-            sp[1] = JS_DupValue(ctx, sp[-2]);
-            sp[2] = JS_DupValue(ctx, sp[-1]);
-            sp += 3;
-            BREAK;
-        CASE(OP_dup1): /* a b -> a a b */
-            sp[0] = sp[-1];
-            sp[-1] = JS_DupValue(ctx, sp[-2]);
-            sp++;
-            BREAK;
-        CASE(OP_insert2): /* obj a -> a obj a (dup_x1) */
-            sp[0] = sp[-1];
-            sp[-1] = sp[-2];
-            sp[-2] = JS_DupValue(ctx, sp[0]);
-            sp++;
-            BREAK;
-        CASE(OP_insert3): /* obj prop a -> a obj prop a (dup_x2) */
-            sp[0] = sp[-1];
-            sp[-1] = sp[-2];
-            sp[-2] = sp[-3];
-            sp[-3] = JS_DupValue(ctx, sp[0]);
-            sp++;
-            BREAK;
-        CASE(OP_insert4): /* this obj prop a -> a this obj prop a */
-            sp[0] = sp[-1];
-            sp[-1] = sp[-2];
-            sp[-2] = sp[-3];
-            sp[-3] = sp[-4];
-            sp[-4] = JS_DupValue(ctx, sp[0]);
-            sp++;
-            BREAK;
-        CASE(OP_perm3): /* obj a b -> a obj b (213) */
-            {
-                JSValue tmp;
-                tmp = sp[-2];
-                sp[-2] = sp[-3];
-                sp[-3] = tmp;
-            }
-            BREAK;
-        CASE(OP_rot3l): /* x a b -> a b x (231) */
-            {
-                JSValue tmp;
-                tmp = sp[-3];
-                sp[-3] = sp[-2];
-                sp[-2] = sp[-1];
-                sp[-1] = tmp;
-            }
-            BREAK;
-        CASE(OP_rot4l): /* x a b c -> a b c x */
-            {
-                JSValue tmp;
-                tmp = sp[-4];
-                sp[-4] = sp[-3];
-                sp[-3] = sp[-2];
-                sp[-2] = sp[-1];
-                sp[-1] = tmp;
-            }
-            BREAK;
-        CASE(OP_rot5l): /* x a b c d -> a b c d x */
-            {
-                JSValue tmp;
-                tmp = sp[-5];
-                sp[-5] = sp[-4];
-                sp[-4] = sp[-3];
-                sp[-3] = sp[-2];
-                sp[-2] = sp[-1];
-                sp[-1] = tmp;
-            }
-            BREAK;
-        CASE(OP_rot3r): /* a b x -> x a b (312) */
-            {
-                JSValue tmp;
-                tmp = sp[-1];
-                sp[-1] = sp[-2];
-                sp[-2] = sp[-3];
-                sp[-3] = tmp;
-            }
-            BREAK;
-        CASE(OP_perm4): /* obj prop a b -> a obj prop b */
-            {
-                JSValue tmp;
-                tmp = sp[-2];
-                sp[-2] = sp[-3];
-                sp[-3] = sp[-4];
-                sp[-4] = tmp;
-            }
-            BREAK;
-        CASE(OP_perm5): /* this obj prop a b -> a this obj prop b */
-            {
-                JSValue tmp;
-                tmp = sp[-2];
-                sp[-2] = sp[-3];
-                sp[-3] = sp[-4];
-                sp[-4] = sp[-5];
-                sp[-5] = tmp;
-            }
-            BREAK;
-        CASE(OP_swap): /* a b -> b a */
-            {
-                JSValue tmp;
-                tmp = sp[-2];
-                sp[-2] = sp[-1];
-                sp[-1] = tmp;
-            }
-            BREAK;
-        CASE(OP_swap2): /* a b c d -> c d a b */
-            {
-                JSValue tmp1, tmp2;
-                tmp1 = sp[-4];
-                tmp2 = sp[-3];
-                sp[-4] = sp[-2];
-                sp[-3] = sp[-1];
-                sp[-2] = tmp1;
-                sp[-1] = tmp2;
-            }
-            BREAK;
-
-        CASE(OP_fclosure):
-            {
-                JSValue bfunc = JS_DupValue(ctx, b->cpool[get_u32(pc)]);
-                pc += 4;
-                *sp++ = js_closure(ctx, bfunc, var_refs, sf);
-                if (unlikely(JS_IsException(sp[-1])))
-                    goto exception;
-            }
-            BREAK;
-#if SHORT_OPCODES
-        CASE(OP_call0):
-        CASE(OP_call1):
-        CASE(OP_call2):
-        CASE(OP_call3):
-            call_argc = opcode - OP_call0;
-            goto has_call_argc;
-#endif
-        CASE(OP_call):
-        CASE(OP_tail_call):
-            {
-                call_argc = get_u16(pc);
-                pc += 2;
-                goto has_call_argc;
-            has_call_argc:
-                call_argv = sp - call_argc;
-                sf->cur_pc = pc;
-                ret_val = JS_CallInternal(ctx, call_argv[-1], JS_UNDEFINED,
-                                          JS_UNDEFINED, call_argc, call_argv, 0);
-                if (unlikely(JS_IsException(ret_val)))
-                    goto exception;
-                if (opcode == OP_tail_call)
-                    goto done;
-                for(i = -1; i < call_argc; i++)
-                    JS_FreeValue(ctx, call_argv[i]);
-                sp -= call_argc + 1;
-                *sp++ = ret_val;
-            }
-            BREAK;
-        CASE(OP_call_constructor):
-            {
-                call_argc = get_u16(pc);
-                pc += 2;
-                call_argv = sp - call_argc;
-                sf->cur_pc = pc;
-                ret_val = JS_CallConstructorInternal(ctx, call_argv[-2],
-                                                     call_argv[-1],
-                                                     call_argc, call_argv, 0);
-                if (unlikely(JS_IsException(ret_val)))
-                    goto exception;
-                for(i = -2; i < call_argc; i++)
-                    JS_FreeValue(ctx, call_argv[i]);
-                sp -= call_argc + 2;
-                *sp++ = ret_val;
-            }
-            BREAK;
-        CASE(OP_call_method):
-        CASE(OP_tail_call_method):
-            {
-                call_argc = get_u16(pc);
-                pc += 2;
-                call_argv = sp - call_argc;
-                sf->cur_pc = pc;
-                ret_val = JS_CallInternal(ctx, call_argv[-1], call_argv[-2],
-                                          JS_UNDEFINED, call_argc, call_argv, 0);
-                if (unlikely(JS_IsException(ret_val)))
-                    goto exception;
-                if (opcode == OP_tail_call_method)
-                    goto done;
-                for(i = -2; i < call_argc; i++)
-                    JS_FreeValue(ctx, call_argv[i]);
-                sp -= call_argc + 2;
-                *sp++ = ret_val;
-            }
-            BREAK;
-        CASE(OP_array_from):
-            {
-                int i, ret;
-
-                call_argc = get_u16(pc);
-                pc += 2;
-                ret_val = JS_NewArray(ctx);
-                if (unlikely(JS_IsException(ret_val)))
-                    goto exception;
-                call_argv = sp - call_argc;
-                for(i = 0; i < call_argc; i++) {
-                    ret = JS_DefinePropertyValue(ctx, ret_val, __JS_AtomFromUInt32(i), call_argv[i],
-                                                 JS_PROP_C_W_E | JS_PROP_THROW);
-                    call_argv[i] = JS_UNDEFINED;
-                    if (ret < 0) {
-                        JS_FreeValue(ctx, ret_val);
-                        goto exception;
-                    }
-                }
-                sp -= call_argc;
-                *sp++ = ret_val;
-            }
-            BREAK;
-
-        CASE(OP_apply):
-            {
-                int magic;
-                magic = get_u16(pc);
-                pc += 2;
-
-                ret_val = js_function_apply(ctx, sp[-3], 2, (JSValueConst *)&sp[-2], magic);
-                if (unlikely(JS_IsException(ret_val)))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-3]);
-                JS_FreeValue(ctx, sp[-2]);
-                JS_FreeValue(ctx, sp[-1]);
-                sp -= 3;
-                *sp++ = ret_val;
-            }
-            BREAK;
-        CASE(OP_return):
-            ret_val = *--sp;
-            goto done;
-        CASE(OP_return_undef):
-            ret_val = JS_UNDEFINED;
-            goto done;
-
-        CASE(OP_check_ctor_return):
-            /* return TRUE if 'this' should be returned */
-            if (!JS_IsObject(sp[-1])) {
-                if (!JS_IsUndefined(sp[-1])) {
-                    JS_ThrowTypeError(ctx, "derived class constructor must return an object or undefined");
-                    goto exception;
-                }
-                sp[0] = JS_TRUE;
-            } else {
-                sp[0] = JS_FALSE;
-            }
-            sp++;
-            BREAK;
-        CASE(OP_check_ctor):
-            if (JS_IsUndefined(new_target)) {
-                JS_ThrowTypeError(ctx, "class constructors must be invoked with 'new'");
-                goto exception;
-            }
-            BREAK;
-        CASE(OP_check_brand):
-            if (JS_CheckBrand(ctx, sp[-2], sp[-1]) < 0)
-                goto exception;
-            BREAK;
-        CASE(OP_add_brand):
-            if (JS_AddBrand(ctx, sp[-2], sp[-1]) < 0)
-                goto exception;
-            JS_FreeValue(ctx, sp[-2]);
-            JS_FreeValue(ctx, sp[-1]);
-            sp -= 2;
-            BREAK;
-            
-        CASE(OP_throw):
-            JS_Throw(ctx, *--sp);
-            goto exception;
-
-        CASE(OP_throw_var):
-#define JS_THROW_VAR_RO             0
-#define JS_THROW_VAR_REDECL         1
-#define JS_THROW_VAR_UNINITIALIZED  2
-            {
-                JSAtom atom;
-                atom = get_u32(pc);
-                int type = pc[4];
-                pc += 5;
-                if (type == JS_THROW_VAR_RO)
-                    JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, atom);
-                else
-                if (type == JS_THROW_VAR_REDECL)
-                    JS_ThrowSyntaxErrorVarRedeclaration(ctx, atom);
-                else
-                if (type == JS_THROW_VAR_UNINITIALIZED)
-                    JS_ThrowReferenceErrorUninitialized(ctx, atom);
-                else
-                    JS_ThrowInternalError(ctx, "invalid throw var type %d", type);
-            }
-            goto exception;
-
-        CASE(OP_eval):
-            {
-                JSValue obj;
-                int scope_idx;
-
-                scope_idx = get_u16(pc) - 1;
-                pc += 2;
-                obj = sp[-1];
-                sp[-1] = JS_EvalObject(ctx, JS_UNDEFINED, obj,
-                                       JS_EVAL_TYPE_DIRECT, scope_idx);
-                JS_FreeValue(ctx, obj);
-                if (unlikely(JS_IsException(sp[-1])))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_regexp):
-            {
-                sp[-2] = js_regexp_constructor_internal(ctx, JS_UNDEFINED,
-                                                        sp[-2], sp[-1]);
-                sp--;
-            }
-            BREAK;
-
-        CASE(OP_get_super_ctor):
-            {
-                JSValue proto;
-                proto = JS_DupValue(ctx, JS_GetPrototype(ctx, sp[-1]));
-                if (JS_IsException(proto))
-                    goto exception;
-                if (!JS_IsConstructor(ctx, proto)) {
-                    JS_FreeValue(ctx, proto);
-                    JS_ThrowTypeError(ctx, "not a constructor");
-                    goto exception;
-                }
-                JS_FreeValue(ctx, sp[-1]);
-                sp[-1] = proto;
-            }
-            BREAK;
-
-        CASE(OP_get_super):
-            {
-                JSValue proto;
-                proto = JS_DupValue(ctx, JS_GetPrototype(ctx, sp[-1]));
-                if (JS_IsException(proto))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-                sp[-1] = proto;
-            }
-            BREAK;
-
-        CASE(OP_import):
-            {
-                JSValue val;
-                val = js_dynamic_import(ctx, sp[-1]);
-                if (JS_IsException(val))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-                sp[-1] = val;
-            }
-            BREAK;
-
-        CASE(OP_check_var):
-            {
-                int ret;
-                JSAtom atom;
-                atom = get_u32(pc);
-                pc += 4;
-
-                ret = JS_CheckGlobalVar(ctx, atom);
-                if (ret < 0)
-                    goto exception;
-                *sp++ = JS_NewBool(ctx, ret);
-            }
-            BREAK;
-
-        CASE(OP_get_var_undef):
-        CASE(OP_get_var):
-            {
-                JSValue val;
-                JSAtom atom;
-                atom = get_u32(pc);
-                pc += 4;
-
-                val = JS_GetGlobalVar(ctx, atom, opcode - OP_get_var_undef);
-                if (unlikely(JS_IsException(val)))
-                    goto exception;
-                *sp++ = val;
-            }
-            BREAK;
-
-        CASE(OP_put_var):
-        CASE(OP_put_var_init):
-            {
-                int ret;
-                JSAtom atom;
-                atom = get_u32(pc);
-                pc += 4;
-
-                ret = JS_SetGlobalVar(ctx, atom, sp[-1], opcode - OP_put_var);
-                sp--;
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_put_var_strict):
-            {
-                int ret;
-                JSAtom atom;
-                atom = get_u32(pc);
-                pc += 4;
-
-                /* sp[-2] is JS_TRUE or JS_FALSE */
-                if (unlikely(!JS_VALUE_GET_INT(sp[-2]))) {
-                    JS_ThrowReferenceErrorNotDefined(ctx, atom);
-                    goto exception;
-                }
-                ret = JS_SetGlobalVar(ctx, atom, sp[-1], 2);
-                sp -= 2;
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_check_define_var):
-            {
-                JSAtom atom;
-                int flags;
-                atom = get_u32(pc);
-                flags = pc[4];
-                pc += 5;
-                if (JS_CheckDefineGlobalVar(ctx, atom, flags))
-                    goto exception;
-            }
-            BREAK;
-        CASE(OP_define_var):
-            {
-                JSAtom atom;
-                int flags;
-                atom = get_u32(pc);
-                flags = pc[4];
-                pc += 5;
-                if (JS_DefineGlobalVar(ctx, atom, flags))
-                    goto exception;
-            }
-            BREAK;
-        CASE(OP_define_func):
-            {
-                JSAtom atom;
-                int flags;
-                atom = get_u32(pc);
-                flags = pc[4];
-                pc += 5;
-                if (JS_DefineGlobalFunction(ctx, atom, sp[-1], flags))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-                sp--;
-            }
-            BREAK;
-
-        CASE(OP_get_loc):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                sp[0] = JS_DupValue(ctx, var_buf[idx]);
-                sp++;
-            }
-            BREAK;
-        CASE(OP_put_loc):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                set_value(ctx, &var_buf[idx], sp[-1]);
-                sp--;
-            }
-            BREAK;
-        CASE(OP_set_loc):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                set_value(ctx, &var_buf[idx], JS_DupValue(ctx, sp[-1]));
-            }
-            BREAK;
-        CASE(OP_get_arg):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                sp[0] = JS_DupValue(ctx, arg_buf[idx]);
-                sp++;
-            }
-            BREAK;
-        CASE(OP_put_arg):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                set_value(ctx, &arg_buf[idx], sp[-1]);
-                sp--;
-            }
-            BREAK;
-        CASE(OP_set_arg):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                set_value(ctx, &arg_buf[idx], JS_DupValue(ctx, sp[-1]));
-            }
-            BREAK;
-
-#if SHORT_OPCODES
-        CASE(OP_get_loc8): *sp++ = JS_DupValue(ctx, var_buf[*pc++]); BREAK;
-        CASE(OP_put_loc8): set_value(ctx, &var_buf[*pc++], *--sp); BREAK;
-        CASE(OP_set_loc8): set_value(ctx, &var_buf[*pc++], JS_DupValue(ctx, sp[-1])); BREAK;
-
-        CASE(OP_get_loc0): *sp++ = JS_DupValue(ctx, var_buf[0]); BREAK;
-        CASE(OP_get_loc1): *sp++ = JS_DupValue(ctx, var_buf[1]); BREAK;
-        CASE(OP_get_loc2): *sp++ = JS_DupValue(ctx, var_buf[2]); BREAK;
-        CASE(OP_get_loc3): *sp++ = JS_DupValue(ctx, var_buf[3]); BREAK;
-        CASE(OP_put_loc0): set_value(ctx, &var_buf[0], *--sp); BREAK;
-        CASE(OP_put_loc1): set_value(ctx, &var_buf[1], *--sp); BREAK;
-        CASE(OP_put_loc2): set_value(ctx, &var_buf[2], *--sp); BREAK;
-        CASE(OP_put_loc3): set_value(ctx, &var_buf[3], *--sp); BREAK;
-        CASE(OP_set_loc0): set_value(ctx, &var_buf[0], JS_DupValue(ctx, sp[-1])); BREAK;
-        CASE(OP_set_loc1): set_value(ctx, &var_buf[1], JS_DupValue(ctx, sp[-1])); BREAK;
-        CASE(OP_set_loc2): set_value(ctx, &var_buf[2], JS_DupValue(ctx, sp[-1])); BREAK;
-        CASE(OP_set_loc3): set_value(ctx, &var_buf[3], JS_DupValue(ctx, sp[-1])); BREAK;
-        CASE(OP_get_arg0): *sp++ = JS_DupValue(ctx, arg_buf[0]); BREAK;
-        CASE(OP_get_arg1): *sp++ = JS_DupValue(ctx, arg_buf[1]); BREAK;
-        CASE(OP_get_arg2): *sp++ = JS_DupValue(ctx, arg_buf[2]); BREAK;
-        CASE(OP_get_arg3): *sp++ = JS_DupValue(ctx, arg_buf[3]); BREAK;
-        CASE(OP_put_arg0): set_value(ctx, &arg_buf[0], *--sp); BREAK;
-        CASE(OP_put_arg1): set_value(ctx, &arg_buf[1], *--sp); BREAK;
-        CASE(OP_put_arg2): set_value(ctx, &arg_buf[2], *--sp); BREAK;
-        CASE(OP_put_arg3): set_value(ctx, &arg_buf[3], *--sp); BREAK;
-        CASE(OP_set_arg0): set_value(ctx, &arg_buf[0], JS_DupValue(ctx, sp[-1])); BREAK;
-        CASE(OP_set_arg1): set_value(ctx, &arg_buf[1], JS_DupValue(ctx, sp[-1])); BREAK;
-        CASE(OP_set_arg2): set_value(ctx, &arg_buf[2], JS_DupValue(ctx, sp[-1])); BREAK;
-        CASE(OP_set_arg3): set_value(ctx, &arg_buf[3], JS_DupValue(ctx, sp[-1])); BREAK;
-        CASE(OP_get_var_ref0): *sp++ = JS_DupValue(ctx, *var_refs[0]->pvalue); BREAK;
-        CASE(OP_get_var_ref1): *sp++ = JS_DupValue(ctx, *var_refs[1]->pvalue); BREAK;
-        CASE(OP_get_var_ref2): *sp++ = JS_DupValue(ctx, *var_refs[2]->pvalue); BREAK;
-        CASE(OP_get_var_ref3): *sp++ = JS_DupValue(ctx, *var_refs[3]->pvalue); BREAK;
-        CASE(OP_put_var_ref0): set_value(ctx, var_refs[0]->pvalue, *--sp); BREAK;
-        CASE(OP_put_var_ref1): set_value(ctx, var_refs[1]->pvalue, *--sp); BREAK;
-        CASE(OP_put_var_ref2): set_value(ctx, var_refs[2]->pvalue, *--sp); BREAK;
-        CASE(OP_put_var_ref3): set_value(ctx, var_refs[3]->pvalue, *--sp); BREAK;
-        CASE(OP_set_var_ref0): set_value(ctx, var_refs[0]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK;
-        CASE(OP_set_var_ref1): set_value(ctx, var_refs[1]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK;
-        CASE(OP_set_var_ref2): set_value(ctx, var_refs[2]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK;
-        CASE(OP_set_var_ref3): set_value(ctx, var_refs[3]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK;
-#endif
-
-        CASE(OP_get_var_ref):
-            {
-                int idx;
-                JSValue val;
-                idx = get_u16(pc);
-                pc += 2;
-                val = *var_refs[idx]->pvalue;
-                sp[0] = JS_DupValue(ctx, val);
-                sp++;
-            }
-            BREAK;
-        CASE(OP_put_var_ref):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                set_value(ctx, var_refs[idx]->pvalue, sp[-1]);
-                sp--;
-            }
-            BREAK;
-        CASE(OP_set_var_ref):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                set_value(ctx, var_refs[idx]->pvalue, JS_DupValue(ctx, sp[-1]));
-            }
-            BREAK;
-        CASE(OP_get_var_ref_check):
-            {
-                int idx;
-                JSValue val;
-                idx = get_u16(pc);
-                pc += 2;
-                val = *var_refs[idx]->pvalue;
-                if (unlikely(JS_IsUninitialized(val))) {
-                    JS_ThrowReferenceErrorUninitialized(ctx, JS_ATOM_NULL);
-                    goto exception;
-                }
-                sp[0] = JS_DupValue(ctx, val);
-                sp++;
-            }
-            BREAK;
-        CASE(OP_put_var_ref_check):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                if (unlikely(JS_IsUninitialized(*var_refs[idx]->pvalue))) {
-                    JS_ThrowReferenceErrorUninitialized(ctx, JS_ATOM_NULL);
-                    goto exception;
-                }
-                set_value(ctx, var_refs[idx]->pvalue, sp[-1]);
-                sp--;
-            }
-            BREAK;
-        CASE(OP_put_var_ref_check_init):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                if (unlikely(!JS_IsUninitialized(*var_refs[idx]->pvalue))) {
-                    JS_ThrowReferenceErrorUninitialized(ctx, JS_ATOM_NULL);
-                    goto exception;
-                }
-                set_value(ctx, var_refs[idx]->pvalue, sp[-1]);
-                sp--;
-            }
-            BREAK;
-        CASE(OP_set_loc_uninitialized):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                set_value(ctx, &var_buf[idx], JS_UNINITIALIZED);
-            }
-            BREAK;
-        CASE(OP_get_loc_check):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                if (unlikely(JS_IsUninitialized(var_buf[idx]))) {
-                    JS_ThrowReferenceErrorUninitialized(ctx, JS_ATOM_NULL);
-                    goto exception;
-                }
-                sp[0] = JS_DupValue(ctx, var_buf[idx]);
-                sp++;
-            }
-            BREAK;
-        CASE(OP_put_loc_check):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                if (unlikely(JS_IsUninitialized(var_buf[idx]))) {
-                    JS_ThrowReferenceErrorUninitialized(ctx, JS_ATOM_NULL);
-                    goto exception;
-                }
-                set_value(ctx, &var_buf[idx], sp[-1]);
-                sp--;
-            }
-            BREAK;
-        CASE(OP_put_loc_check_init):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                if (unlikely(!JS_IsUninitialized(var_buf[idx]))) {
-                    JS_ThrowReferenceError(ctx, "'this' can be initialized only once");
-                    goto exception;
-                }
-                set_value(ctx, &var_buf[idx], sp[-1]);
-                sp--;
-            }
-            BREAK;
-        CASE(OP_close_loc):
-            {
-                int idx;
-                idx = get_u16(pc);
-                pc += 2;
-                close_lexical_var(ctx, sf, idx, FALSE);
-            }
-            BREAK;
-
-        CASE(OP_make_loc_ref):
-        CASE(OP_make_arg_ref):
-        CASE(OP_make_var_ref_ref):
-            {
-                JSVarRef *var_ref;
-                JSProperty *pr;
-                JSAtom atom;
-                int idx;
-                atom = get_u32(pc);
-                idx = get_u16(pc + 4);
-                pc += 6;
-                *sp++ = JS_NewObjectProto(ctx, JS_NULL);
-                if (unlikely(JS_IsException(sp[-1])))
-                    goto exception;
-                if (opcode == OP_make_var_ref_ref) {
-                    var_ref = var_refs[idx];
-                    var_ref->header.ref_count++;
-                } else {
-                    var_ref = get_var_ref(ctx, sf, idx, opcode == OP_make_arg_ref);
-                    if (!var_ref)
-                        goto exception;
-                }
-                pr = add_property(ctx, JS_VALUE_GET_OBJ(sp[-1]), atom,
-                                  JS_PROP_WRITABLE | JS_PROP_VARREF);
-                if (!pr) {
-                    free_var_ref(ctx->rt, var_ref);
-                    goto exception;
-                }
-                pr->u.var_ref = var_ref;
-                *sp++ = JS_AtomToValue(ctx, atom);
-            }
-            BREAK;
-        CASE(OP_make_var_ref):
-            {
-                JSAtom atom;
-                atom = get_u32(pc);
-                pc += 4;
-
-                if (JS_GetGlobalVarRef(ctx, atom, sp))
-                    goto exception;
-                sp += 2;
-            }
-            BREAK;
-
-        CASE(OP_goto):
-            pc += (int32_t)get_u32(pc);
-            if (unlikely(js_poll_interrupts(ctx)))
-                goto exception;
-            BREAK;
-#if SHORT_OPCODES
-        CASE(OP_goto16):
-            pc += (int16_t)get_u16(pc);
-            if (unlikely(js_poll_interrupts(ctx)))
-                goto exception;
-            BREAK;
-        CASE(OP_goto8):
-            pc += (int8_t)pc[0];
-            if (unlikely(js_poll_interrupts(ctx)))
-                goto exception;
-            BREAK;
-#endif
-        CASE(OP_if_true):
-            {
-                int res;
-                JSValue op1;
-
-                op1 = sp[-1];
-                pc += 4;
-                if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) {
-                    res = JS_VALUE_GET_INT(op1);
-                } else {
-                    res = JS_ToBoolFree(ctx, op1);
-                }
-                sp--;
-                if (res) {
-                    pc += (int32_t)get_u32(pc - 4) - 4;
-                }
-                if (unlikely(js_poll_interrupts(ctx)))
-                    goto exception;
-            }
-            BREAK;
-        CASE(OP_if_false):
-            {
-                int res;
-                JSValue op1;
-
-                op1 = sp[-1];
-                pc += 4;
-                if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) {
-                    res = JS_VALUE_GET_INT(op1);
-                } else {
-                    res = JS_ToBoolFree(ctx, op1);
-                }
-                sp--;
-                if (!res) {
-                    pc += (int32_t)get_u32(pc - 4) - 4;
-                }
-                if (unlikely(js_poll_interrupts(ctx)))
-                    goto exception;
-            }
-            BREAK;
-#if SHORT_OPCODES
-        CASE(OP_if_true8):
-            {
-                int res;
-                JSValue op1;
-
-                op1 = sp[-1];
-                pc += 1;
-                if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) {
-                    res = JS_VALUE_GET_INT(op1);
-                } else {
-                    res = JS_ToBoolFree(ctx, op1);
-                }
-                sp--;
-                if (res) {
-                    pc += (int8_t)pc[-1] - 1;
-                }
-                if (unlikely(js_poll_interrupts(ctx)))
-                    goto exception;
-            }
-            BREAK;
-        CASE(OP_if_false8):
-            {
-                int res;
-                JSValue op1;
-
-                op1 = sp[-1];
-                pc += 1;
-                if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) {
-                    res = JS_VALUE_GET_INT(op1);
-                } else {
-                    res = JS_ToBoolFree(ctx, op1);
-                }
-                sp--;
-                if (!res) {
-                    pc += (int8_t)pc[-1] - 1;
-                }
-                if (unlikely(js_poll_interrupts(ctx)))
-                    goto exception;
-            }
-            BREAK;
-#endif
-        CASE(OP_catch):
-            {
-                int32_t diff;
-                diff = get_u32(pc);
-                sp[0] = JS_NewCatchOffset(ctx, pc + diff - b->byte_code_buf);
-                sp++;
-                pc += 4;
-            }
-            BREAK;
-        CASE(OP_gosub):
-            {
-                int32_t diff;
-                diff = get_u32(pc);
-                /* XXX: should have a different tag to avoid security flaw */
-                sp[0] = JS_NewInt32(ctx, pc + 4 - b->byte_code_buf);
-                sp++;
-                pc += diff;
-            }
-            BREAK;
-        CASE(OP_ret):
-            {
-                JSValue op1;
-                uint32_t pos;
-                op1 = sp[-1];
-                if (unlikely(JS_VALUE_GET_TAG(op1) != JS_TAG_INT))
-                    goto ret_fail;
-                pos = JS_VALUE_GET_INT(op1);
-                if (unlikely(pos >= b->byte_code_len)) {
-                ret_fail:
-                    JS_ThrowInternalError(ctx, "invalid ret value");
-                    goto exception;
-                }
-                sp--;
-                pc = b->byte_code_buf + pos;
-            }
-            BREAK;
-
-        CASE(OP_for_in_start):
-            if (js_for_in_start(ctx, sp))
-                goto exception;
-            BREAK;
-        CASE(OP_for_in_next):
-            if (js_for_in_next(ctx, sp))
-                goto exception;
-            sp += 2;
-            BREAK;
-        CASE(OP_for_of_start):
-            if (js_for_of_start(ctx, sp, FALSE))
-                goto exception;
-            sp += 1;
-            *sp++ = JS_NewCatchOffset(ctx, 0);
-            BREAK;
-        CASE(OP_for_of_next):
-            {
-                int offset = -3 - pc[0];
-                pc += 1;
-                if (js_for_of_next(ctx, sp, offset))
-                    goto exception;
-                sp += 2;
-            }
-            BREAK;
-        CASE(OP_for_await_of_start):
-            if (js_for_of_start(ctx, sp, TRUE))
-                goto exception;
-            sp += 1;
-            *sp++ = JS_NewCatchOffset(ctx, 0);
-            BREAK;
-        CASE(OP_for_await_of_next):
-            if (js_for_await_of_next(ctx, sp))
-                goto exception;
-            sp += 1;
-            BREAK;
-        CASE(OP_iterator_get_value_done):
-            if (js_iterator_get_value_done(ctx, sp))
-                goto exception;
-            sp += 1;
-            BREAK;
-
-        CASE(OP_iterator_close):
-            sp--; /* drop the catch offset to avoid getting caught by exception */
-            JS_FreeValue(ctx, sp[-1]); /* drop the next method */
-            sp--;
-            if (!JS_IsUndefined(sp[-1])) {
-                if (JS_IteratorClose(ctx, sp[-1], FALSE))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-            }
-            sp--;
-            BREAK;
-        CASE(OP_iterator_close_return):
-            {
-                JSValue ret_val;
-                /* iter_obj next catch_offset ... ret_val ->
-                   ret_eval iter_obj next catch_offset */
-                ret_val = *--sp;
-                while (sp > stack_buf &&
-                       JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_CATCH_OFFSET) {
-                    JS_FreeValue(ctx, *--sp);
-                }
-                if (unlikely(sp < stack_buf + 3)) {
-                    JS_ThrowInternalError(ctx, "iterator_close_return");
-                    JS_FreeValue(ctx, ret_val);
-                    goto exception;
-                }
-                sp[0] = sp[-1];
-                sp[-1] = sp[-2];
-                sp[-2] = sp[-3];
-                sp[-3] = ret_val;
-                sp++;
-            }
-            BREAK;
-
-        CASE(OP_async_iterator_close):
-            /* iter_obj next catch_offset -> value flag */
-            {
-                JSValue ret, method;
-                int ret_flag;
-                method = JS_GetProperty(ctx, sp[-3], JS_ATOM_return);
-                if (JS_IsException(method))
-                    goto exception;
-                if (JS_IsUndefined(method) || JS_IsNull(method)) {
-                    ret = JS_UNDEFINED;
-                    ret_flag = TRUE;
-                } else {
-                    ret = JS_CallFree(ctx, method, sp[-3], 0, NULL);
-                    if (JS_IsException(ret))
-                        goto exception;
-                    ret_flag = FALSE;
-                }
-                JS_FreeValue(ctx, sp[-3]);
-                JS_FreeValue(ctx, sp[-2]);
-                JS_FreeValue(ctx, sp[-1]);
-                sp[-3] = ret;
-                sp[-2] = JS_NewBool(ctx, ret_flag);
-                sp -= 1;
-            }
-            BREAK;
-
-        CASE(OP_async_iterator_next):
-            /* stack: iter_obj next catch_offset val */
-            {
-                JSValue ret;
-                ret = JS_Call(ctx, sp[-3], sp[-4],
-                              1, (JSValueConst *)(sp - 1));
-                if (JS_IsException(ret))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-                sp[-1] = ret;
-            }
-            BREAK;
-
-        CASE(OP_async_iterator_get):
-            /* stack: iter_obj next catch_offset val */
-            {
-                JSValue method, ret;
-                BOOL ret_flag;
-                int flags;
-                flags = *pc++;
-                if (flags == 2) {
-                    JS_ThrowTypeError(ctx, "iterator does not have a throw method");
-                    goto exception;
-                }
-                method = JS_GetProperty(ctx, sp[-4], flags ? JS_ATOM_throw : JS_ATOM_return);
-                if (JS_IsException(method))
-                    goto exception;
-                if (JS_IsUndefined(method) || JS_IsNull(method)) {
-                    ret_flag = TRUE;
-                } else {
-                    ret = JS_CallFree(ctx, method, sp[-4],
-                                      1, (JSValueConst *)(sp - 1));
-                    if (JS_IsException(ret))
-                        goto exception;
-                    JS_FreeValue(ctx, sp[-1]);
-                    sp[-1] = ret;
-                    ret_flag = FALSE;
-                }
-                sp[0] = JS_NewBool(ctx, ret_flag);
-                sp += 1;
-            }
-            BREAK;
-
-        CASE(OP_lnot):
-            {
-                int res;
-                JSValue op1;
-
-                op1 = sp[-1];
-                if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) {
-                    res = JS_VALUE_GET_INT(op1) != 0;
-                } else {
-                    res = JS_ToBoolFree(ctx, op1);
-                }
-                sp[-1] = JS_NewBool(ctx, !res);
-            }
-            BREAK;
-
-        CASE(OP_get_field):
-            {
-                JSValue val;
-                JSAtom atom;
-                atom = get_u32(pc);
-                pc += 4;
-
-                val = JS_GetProperty(ctx, sp[-1], atom);
-                if (unlikely(JS_IsException(val)))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-                sp[-1] = val;
-            }
-            BREAK;
-
-        CASE(OP_get_field2):
-            {
-                JSValue val;
-                JSAtom atom;
-                atom = get_u32(pc);
-                pc += 4;
-
-                val = JS_GetProperty(ctx, sp[-1], atom);
-                if (unlikely(JS_IsException(val)))
-                    goto exception;
-                *sp++ = val;
-            }
-            BREAK;
-
-        CASE(OP_put_field):
-            {
-                int ret;
-                JSAtom atom;
-                atom = get_u32(pc);
-                pc += 4;
-
-                ret = JS_SetPropertyInternal(ctx, sp[-2], atom, sp[-1],
-                                             JS_PROP_THROW_STRICT);
-                JS_FreeValue(ctx, sp[-2]);
-                sp -= 2;
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_private_symbol):
-            {
-                JSAtom atom;
-                JSValue val;
-                
-                atom = get_u32(pc);
-                pc += 4;
-                val = JS_NewSymbolFromAtom(ctx, atom, JS_ATOM_TYPE_PRIVATE);
-                if (JS_IsException(val))
-                    goto exception;
-                *sp++ = val;
-            }
-            BREAK;
-            
-        CASE(OP_get_private_field):
-            {
-                JSValue val;
-
-                val = JS_GetPrivateField(ctx, sp[-2], sp[-1]);
-                JS_FreeValue(ctx, sp[-1]);
-                JS_FreeValue(ctx, sp[-2]);
-                sp[-2] = val;
-                sp--;
-                if (unlikely(JS_IsException(val)))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_put_private_field):
-            {
-                int ret;
-                ret = JS_SetPrivateField(ctx, sp[-3], sp[-1], sp[-2]);
-                JS_FreeValue(ctx, sp[-3]);
-                JS_FreeValue(ctx, sp[-1]);
-                sp -= 3;
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_define_private_field):
-            {
-                int ret;
-                ret = JS_DefinePrivateField(ctx, sp[-3], sp[-2], sp[-1]);
-                JS_FreeValue(ctx, sp[-2]);
-                sp -= 2;
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_define_field):
-            {
-                int ret;
-                JSAtom atom;
-                atom = get_u32(pc);
-                pc += 4;
-
-                ret = JS_DefinePropertyValue(ctx, sp[-2], atom, sp[-1],
-                                             JS_PROP_C_W_E | JS_PROP_THROW);
-                sp--;
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_set_name):
-            {
-                int ret;
-                JSAtom atom;
-                atom = get_u32(pc);
-                pc += 4;
-
-                ret = JS_DefineObjectName(ctx, sp[-1], atom, JS_PROP_CONFIGURABLE);
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-        CASE(OP_set_name_computed):
-            {
-                int ret;
-                ret = JS_DefineObjectNameComputed(ctx, sp[-1], sp[-2], JS_PROP_CONFIGURABLE);
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-        CASE(OP_set_proto):
-            {
-                JSValue proto;
-                proto = sp[-1];
-                if (JS_IsObject(proto) || JS_IsNull(proto)) {
-                    if (JS_SetPrototypeInternal(ctx, sp[-2], proto, TRUE) < 0)
-                        goto exception;
-                }
-                JS_FreeValue(ctx, proto);
-                sp--;
-            }
-            BREAK;
-        CASE(OP_set_home_object):
-            js_method_set_home_object(ctx, sp[-1], sp[-2]);
-            BREAK;
-        CASE(OP_define_method):
-        CASE(OP_define_method_computed):
-            {
-                JSValue getter, setter, value;
-                JSValueConst obj;
-                JSAtom atom;
-                int flags, ret, op_flags;
-                BOOL is_computed;
-#define OP_DEFINE_METHOD_METHOD 0
-#define OP_DEFINE_METHOD_GETTER 1
-#define OP_DEFINE_METHOD_SETTER 2
-#define OP_DEFINE_METHOD_ENUMERABLE 4
-
-                is_computed = (opcode == OP_define_method_computed);
-                if (is_computed) {
-                    atom = js_value_to_atom(ctx, sp[-2]);
-                    if (unlikely(atom == JS_ATOM_NULL))
-                        goto exception;
-                    opcode += OP_define_method - OP_define_method_computed;
-                } else {
-                    atom = get_u32(pc);
-                    pc += 4;
-                }
-                op_flags = *pc++;
-
-                obj = sp[-2 - is_computed];
-                flags = JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE |
-                    JS_PROP_HAS_ENUMERABLE | JS_PROP_THROW;
-                if (op_flags & OP_DEFINE_METHOD_ENUMERABLE)
-                    flags |= JS_PROP_ENUMERABLE;
-                op_flags &= 3;
-                value = JS_UNDEFINED;
-                getter = JS_UNDEFINED;
-                setter = JS_UNDEFINED;
-                if (op_flags == OP_DEFINE_METHOD_METHOD) {
-                    value = sp[-1];
-                    flags |= JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE;
-                } else if (op_flags == OP_DEFINE_METHOD_GETTER) {
-                    getter = sp[-1];
-                    flags |= JS_PROP_HAS_GET;
-                } else {
-                    setter = sp[-1];
-                    flags |= JS_PROP_HAS_SET;
-                }
-                ret = js_method_set_properties(ctx, sp[-1], atom, flags, obj);
-                if (ret >= 0) {
-                    ret = JS_DefineProperty(ctx, obj, atom, value,
-                                            getter, setter, flags);
-                }
-                JS_FreeValue(ctx, sp[-1]);
-                if (is_computed) {
-                    JS_FreeAtom(ctx, atom);
-                    JS_FreeValue(ctx, sp[-2]);
-                }
-                sp -= 1 + is_computed;
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_define_class):
-            {
-                int class_flags;
-                JSAtom atom;
-                
-                atom = get_u32(pc);
-                class_flags = pc[4];
-                pc += 5;
-                if (js_op_define_class(ctx, sp, atom, class_flags,
-                                       var_refs, sf) < 0)
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_get_array_el):
-            {
-                JSValue val;
-
-                val = JS_GetPropertyValue(ctx, sp[-2], sp[-1]);
-                JS_FreeValue(ctx, sp[-2]);
-                sp[-2] = val;
-                sp--;
-                if (unlikely(JS_IsException(val)))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_get_array_el2):
-            {
-                JSValue val;
-
-                val = JS_GetPropertyValue(ctx, sp[-2], sp[-1]);
-                sp[-1] = val;
-                if (unlikely(JS_IsException(val)))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_get_ref_value):
-            {
-                JSValue val;
-                if (unlikely(JS_IsUndefined(sp[-2]))) {
-                    JSAtom atom = js_value_to_atom(ctx, sp[-1]);
-                    if (atom != JS_ATOM_NULL) {
-                        JS_ThrowReferenceErrorNotDefined(ctx, atom);
-                        JS_FreeAtom(ctx, atom);
-                    }
-                    goto exception;
-                }
-                val = JS_GetPropertyValue(ctx, sp[-2],
-                                          JS_DupValue(ctx, sp[-1]));
-                if (unlikely(JS_IsException(val)))
-                    goto exception;
-                sp[0] = val;
-                sp++;
-            }
-            BREAK;
-
-        CASE(OP_get_super_value):
-            {
-                JSValue val;
-                JSAtom atom;
-                atom = js_value_to_atom(ctx, sp[-1]);
-                if (unlikely(atom == JS_ATOM_NULL))
-                    goto exception;
-                val = JS_GetPropertyInternal(ctx, sp[-2], atom, sp[-3], FALSE);
-                JS_FreeAtom(ctx, atom);
-                if (unlikely(JS_IsException(val)))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-                JS_FreeValue(ctx, sp[-2]);
-                JS_FreeValue(ctx, sp[-3]);
-                sp[-3] = val;
-                sp -= 2;
-            }
-            BREAK;
-
-        CASE(OP_put_array_el):
-            {
-                int ret;
-
-                ret = JS_SetPropertyValue(ctx, sp[-3], sp[-2], sp[-1], JS_PROP_THROW_STRICT);
-                JS_FreeValue(ctx, sp[-3]);
-                sp -= 3;
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_put_ref_value):
-            {
-                int ret;
-                if (unlikely(JS_IsUndefined(sp[-3]))) {
-                    if (is_strict_mode(ctx)) {
-                        JSAtom atom = js_value_to_atom(ctx, sp[-2]);
-                        if (atom != JS_ATOM_NULL) {
-                            JS_ThrowReferenceErrorNotDefined(ctx, atom);
-                            JS_FreeAtom(ctx, atom);
-                        }
-                        goto exception;
-                    } else {
-                        sp[-3] = JS_DupValue(ctx, ctx->global_obj);
-                    }
-                }
-                ret = JS_SetPropertyValue(ctx, sp[-3], sp[-2], sp[-1], JS_PROP_THROW_STRICT);
-                JS_FreeValue(ctx, sp[-3]);
-                sp -= 3;
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_put_super_value):
-            {
-                int ret;
-                JSAtom atom;
-                if (JS_VALUE_GET_TAG(sp[-3]) != JS_TAG_OBJECT) {
-                    JS_ThrowTypeErrorNotAnObject(ctx);
-                    goto exception;
-                }
-                atom = js_value_to_atom(ctx, sp[-2]);
-                if (unlikely(atom == JS_ATOM_NULL))
-                    goto exception;
-                ret = JS_SetPropertyGeneric(ctx, JS_VALUE_GET_OBJ(sp[-3]),
-                                            atom, sp[-1], sp[-4],
-                                            JS_PROP_THROW_STRICT);
-                JS_FreeAtom(ctx, atom);
-                JS_FreeValue(ctx, sp[-4]);
-                JS_FreeValue(ctx, sp[-3]);
-                JS_FreeValue(ctx, sp[-2]);
-                sp -= 4;
-                if (ret < 0)
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_define_array_el):
-            {
-                int ret;
-                ret = JS_DefinePropertyValueValue(ctx, sp[-3], JS_DupValue(ctx, sp[-2]), sp[-1],
-                                                  JS_PROP_C_W_E | JS_PROP_THROW);
-                sp -= 1;
-                if (unlikely(ret < 0))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_append):    /* array pos enumobj -- array pos */
-            {
-                if (js_append_enumerate(ctx, sp))
-                    goto exception;
-                JS_FreeValue(ctx, *--sp);
-            }
-            BREAK;
-
-        CASE(OP_copy_data_properties):    /* target source excludeList */
-            {
-                /* stack offsets (-1 based):
-                   2 bits for target,
-                   3 bits for source,
-                   2 bits for exclusionList */
-                int mask;
-
-                mask = *pc++;
-                if (JS_CopyDataProperties(ctx, sp[-1 - (mask & 3)],
-                                          sp[-1 - ((mask >> 2) & 7)],
-                                          sp[-1 - ((mask >> 5) & 7)], 0))
-                    goto exception;
-            }
-            BREAK;
-
-        CASE(OP_add):
-            {
-                JSValue op1, op2;
-                op1 = sp[-2];
-                op2 = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
-                    int64_t r;
-                    r = (int64_t)JS_VALUE_GET_INT(op1) + JS_VALUE_GET_INT(op2);
-                    if (unlikely((int)r != r))
-                        goto add_slow;
-                    sp[-2] = JS_NewInt32(ctx, r);
-                    sp--;
-                } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) {
-                    sp[-2] = __JS_NewFloat64(ctx, JS_VALUE_GET_FLOAT64(op1) +
-                                             JS_VALUE_GET_FLOAT64(op2));
-                    sp--;
-                } else {
-                add_slow:
-                    if (js_add_slow(ctx, sp))
-                        goto exception;
-                    sp--;
-                }
-            }
-            BREAK;
-        CASE(OP_add_loc):
-            {
-                JSValue ops[2];
-                int idx;
-                idx = *pc;
-                pc += 1;
-
-                ops[0] = var_buf[idx];
-                ops[1] = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(ops[0], ops[1]))) {
-                    int64_t r;
-                    r = (int64_t)JS_VALUE_GET_INT(ops[0]) + JS_VALUE_GET_INT(ops[1]);
-                    if (unlikely((int)r != r))
-                        goto add_loc_slow;
-                    var_buf[idx] = JS_NewInt32(ctx, r);
-                    sp--;
-                } else if (JS_VALUE_GET_TAG(ops[0]) == JS_TAG_STRING) {
-                    sp--;
-                    ops[1] = JS_ToPrimitiveFree(ctx, ops[1], HINT_NONE);
-                    if (JS_IsException(ops[1])) {
-                        goto exception;
-                    }
-                    /* XXX: should not modify the variable in case of
-                       exception */
-                    ops[0] = JS_ConcatString(ctx, ops[0], ops[1]);
-                    if (JS_IsException(ops[0])) {
-                        var_buf[idx] = JS_UNDEFINED;
-                        goto exception;
-                    }
-                    var_buf[idx] = ops[0];
-                } else {
-                add_loc_slow:
-                    /* XXX: should not modify the variable in case of
-                       exception */
-                    sp--;
-                    /* In case of exception, js_add_slow frees ops[0]
-                       and ops[1]. */
-                    /* XXX: change API */
-                    if (js_add_slow(ctx, ops + 2)) {
-                        var_buf[idx] = JS_UNDEFINED;
-                        goto exception;
-                    }
-                    var_buf[idx] = ops[0];
-                }
-            }
-            BREAK;
-        CASE(OP_sub):
-            {
-                JSValue op1, op2;
-                op1 = sp[-2];
-                op2 = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
-                    int64_t r;
-                    r = (int64_t)JS_VALUE_GET_INT(op1) - JS_VALUE_GET_INT(op2);
-                    if (unlikely((int)r != r))
-                        goto binary_arith_slow;
-                    sp[-2] = JS_NewInt32(ctx, r);
-                    sp--;
-                } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) {
-                    sp[-2] = __JS_NewFloat64(ctx, JS_VALUE_GET_FLOAT64(op1) -
-                                             JS_VALUE_GET_FLOAT64(op2));
-                    sp--;
-                } else {
-                    goto binary_arith_slow;
-                }
-            }
-            BREAK;
-        CASE(OP_mul):
-            {
-                JSValue op1, op2;
-                double d;
-                op1 = sp[-2];
-                op2 = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
-                    int32_t v1, v2;
-                    int64_t r;
-                    v1 = JS_VALUE_GET_INT(op1);
-                    v2 = JS_VALUE_GET_INT(op2);
-                    r = (int64_t)v1 * v2;
-#ifdef CONFIG_BIGNUM
-                    if (unlikely((int)r != r) || (r == 0 && !is_bignum_mode(ctx)))
-                        goto binary_arith_slow;
-#else
-                    if (unlikely((int)r != r)) {
-                        d = (double)r;
-                        goto mul_fp_res;
-                    }
-                    /* need to test zero case for -0 result */
-                    if (unlikely(r == 0 && (v1 | v2) < 0)) {
-                        d = -0.0;
-                        goto mul_fp_res;
-                    }
-#endif
-                    sp[-2] = JS_NewInt32(ctx, r);
-                    sp--;
-                } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) {
-                    d = JS_VALUE_GET_FLOAT64(op1) * JS_VALUE_GET_FLOAT64(op2);
-#ifndef CONFIG_BIGNUM
-                mul_fp_res:
-#endif
-                    sp[-2] = __JS_NewFloat64(ctx, d);
-                    sp--;
-                } else {
-                    goto binary_arith_slow;
-                }
-            }
-            BREAK;
-#ifdef CONFIG_BIGNUM
-        CASE(OP_math_div):
-        CASE(OP_div):
-            goto binary_arith_slow;
-#else
-        CASE(OP_div):
-            {
-                JSValue op1, op2;
-                op1 = sp[-2];
-                op2 = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
-                    int v1, v2;
-                    v1 = JS_VALUE_GET_INT(op1);
-                    v2 = JS_VALUE_GET_INT(op2);
-                    sp[-2] = JS_NewFloat64(ctx, (double)v1 / (double)v2);
-                    sp--;
-                } else {
-                    goto binary_arith_slow;
-                }
-            }
-            BREAK;
-#endif
-        CASE(OP_mod):
-#ifdef CONFIG_BIGNUM
-        CASE(OP_math_mod):
-#endif
-            {
-                JSValue op1, op2;
-                op1 = sp[-2];
-                op2 = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
-                    int v1, v2, r;
-                    v1 = JS_VALUE_GET_INT(op1);
-                    v2 = JS_VALUE_GET_INT(op2);
-                    /* We must avoid v2 = 0, v1 = INT32_MIN and v2 =
-                       -1 and the cases where the result is -0. */
-                    if (unlikely(v1 < 0 || v2 <= 0))
-                        goto binary_arith_slow;
-                    r = v1 % v2;
-                    sp[-2] = JS_NewInt32(ctx, r);
-                    sp--;
-                } else {
-                    goto binary_arith_slow;
-                }
-            }
-            BREAK;
-        CASE(OP_pow):
-#ifdef CONFIG_BIGNUM
-        CASE(OP_math_pow):
-#endif
-        binary_arith_slow:
-            if (js_binary_arith_slow(ctx, sp, opcode))
-                goto exception;
-            sp--;
-            BREAK;
-
-        CASE(OP_plus):
-            {
-                JSValue op1;
-                uint32_t tag;
-                op1 = sp[-1];
-                tag = JS_VALUE_GET_TAG(op1);
-                if (tag == JS_TAG_INT || JS_TAG_IS_FLOAT64(tag)) {
-                } else {
-                    if (js_unary_arith_slow(ctx, sp, opcode))
-                        goto exception;
-                }
-            }
-            BREAK;
-        CASE(OP_neg):
-            {
-                JSValue op1;
-                uint32_t tag;
-                int val;
-                double d;
-                op1 = sp[-1];
-                tag = JS_VALUE_GET_TAG(op1);
-                if (tag == JS_TAG_INT) {
-                    val = JS_VALUE_GET_INT(op1);
-#ifdef CONFIG_BIGNUM
-                    if (unlikely(val == INT32_MIN) ||
-                        (val == 0 && !is_bignum_mode(ctx)))
-                        goto slow_neg;
-#else
-                    /* Note: -0 cannot be expressed as integer */
-                    if (unlikely(val == 0)) {
-                        d = -0.0;
-                        goto neg_fp_res;
-                    }
-                    if (unlikely(val == INT32_MIN)) {
-                        d = -(double)val;
-                        goto neg_fp_res;
-                    }
-#endif
-                    sp[-1] = JS_NewInt32(ctx, -val);
-                } else if (JS_TAG_IS_FLOAT64(tag)) {
-                    d = -JS_VALUE_GET_FLOAT64(op1);
-#ifndef CONFIG_BIGNUM
-                neg_fp_res:
-#endif
-                    sp[-1] = __JS_NewFloat64(ctx, d);
-                } else {
-#ifdef CONFIG_BIGNUM
-                slow_neg:
-#endif
-                    if (js_unary_arith_slow(ctx, sp, opcode))
-                        goto exception;
-                }
-            }
-            BREAK;
-        CASE(OP_inc):
-            {
-                JSValue op1;
-                int val;
-                op1 = sp[-1];
-                if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) {
-                    val = JS_VALUE_GET_INT(op1);
-                    if (unlikely(val == INT32_MAX))
-                        goto inc_slow;
-                    sp[-1] = JS_NewInt32(ctx, val + 1);
-                } else {
-                inc_slow:
-                    if (js_unary_arith_slow(ctx, sp, opcode))
-                        goto exception;
-                }
-            }
-            BREAK;
-        CASE(OP_dec):
-            {
-                JSValue op1;
-                int val;
-                op1 = sp[-1];
-                if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) {
-                    val = JS_VALUE_GET_INT(op1);
-                    if (unlikely(val == INT32_MIN))
-                        goto dec_slow;
-                    sp[-1] = JS_NewInt32(ctx, val - 1);
-                } else {
-                dec_slow:
-                    if (js_unary_arith_slow(ctx, sp, opcode))
-                        goto exception;
-                }
-            }
-            BREAK;
-        CASE(OP_post_inc):
-        CASE(OP_post_dec):
-            if (js_post_inc_slow(ctx, sp, opcode))
-                goto exception;
-            sp++;
-            BREAK;
-        CASE(OP_inc_loc):
-            {
-                JSValue op1;
-                int val;
-                int idx;
-                idx = *pc;
-                pc += 1;
-
-                op1 = var_buf[idx];
-                if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) {
-                    val = JS_VALUE_GET_INT(op1);
-                    if (unlikely(val == INT32_MAX))
-                        goto inc_loc_slow;
-                    var_buf[idx] = JS_NewInt32(ctx, val + 1);
-                } else {
-                inc_loc_slow:
-                    if (js_unary_arith_slow(ctx, var_buf + idx + 1, OP_inc))
-                        goto exception;
-                }
-            }
-            BREAK;
-        CASE(OP_dec_loc):
-            {
-                JSValue op1;
-                int val;
-                int idx;
-                idx = *pc;
-                pc += 1;
-
-                op1 = var_buf[idx];
-                if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) {
-                    val = JS_VALUE_GET_INT(op1);
-                    if (unlikely(val == INT32_MIN))
-                        goto dec_loc_slow;
-                    var_buf[idx] = JS_NewInt32(ctx, val - 1);
-                } else {
-                dec_loc_slow:
-                    if (js_unary_arith_slow(ctx, var_buf + idx + 1, OP_dec))
-                        goto exception;
-                }
-            }
-            BREAK;
-        CASE(OP_not):
-            {
-                JSValue op1;
-                op1 = sp[-1];
-                if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) {
-                    sp[-1] = JS_NewInt32(ctx, ~JS_VALUE_GET_INT(op1));
-                } else {
-                    if (js_not_slow(ctx, sp))
-                        goto exception;
-                }
-            }
-            BREAK;
-
-        CASE(OP_shl):
-            {
-                JSValue op1, op2;
-                op1 = sp[-2];
-                op2 = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
-                    uint32_t v1, v2;
-                    v1 = JS_VALUE_GET_INT(op1);
-                    v2 = JS_VALUE_GET_INT(op2);
-#ifdef CONFIG_BIGNUM
-                    {
-                        int64_t r;
-                        if (is_bignum_mode(ctx)) {
-                            if (v2 > 0x1f)
-                                goto shl_slow;
-                            r = (int64_t)v1 << v2;
-                            if ((int)r != r)
-                                goto shl_slow;
-                        } else {
-                            v2 &= 0x1f;
-                        }
-                    }
-#else
-                    v2 &= 0x1f;
-#endif
-                    sp[-2] = JS_NewInt32(ctx, v1 << v2);
-                    sp--;
-                } else {
-#ifdef CONFIG_BIGNUM
-                shl_slow:
-#endif
-                    if (js_binary_logic_slow(ctx, sp, opcode))
-                        goto exception;
-                    sp--;
-                }
-            }
-            BREAK;
-        CASE(OP_shr):
-            {
-                JSValue op1, op2;
-                op1 = sp[-2];
-                op2 = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
-                    uint32_t v2;
-                    v2 = JS_VALUE_GET_INT(op2);
-                    /* v1 >>> v2 retains its JS semantics if CONFIG_BIGNUM */
-                    v2 &= 0x1f;
-                    sp[-2] = JS_NewUint32(ctx,
-                                          (uint32_t)JS_VALUE_GET_INT(op1) >>
-                                          v2);
-                    sp--;
-                } else {
-                    if (js_shr_slow(ctx, sp))
-                        goto exception;
-                    sp--;
-                }
-            }
-            BREAK;
-        CASE(OP_sar):
-            {
-                JSValue op1, op2;
-                op1 = sp[-2];
-                op2 = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
-                    uint32_t v2;
-                    v2 = JS_VALUE_GET_INT(op2);
-#ifdef CONFIG_BIGNUM
-                    if (unlikely(v2 > 0x1f)) {
-                        if (is_bignum_mode(ctx))
-                            goto sar_slow;
-                        else
-                            v2 &= 0x1f;
-                    }
-#else
-                    v2 &= 0x1f;
-#endif
-                    sp[-2] = JS_NewInt32(ctx,
-                                          (int)JS_VALUE_GET_INT(op1) >> v2);
-                    sp--;
-                } else {
-#ifdef CONFIG_BIGNUM
-                sar_slow:
-#endif
-                    if (js_binary_logic_slow(ctx, sp, opcode))
-                        goto exception;
-                    sp--;
-                }
-            }
-            BREAK;
-        CASE(OP_and):
-            {
-                JSValue op1, op2;
-                op1 = sp[-2];
-                op2 = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
-                    sp[-2] = JS_NewInt32(ctx,
-                                         JS_VALUE_GET_INT(op1) &
-                                         JS_VALUE_GET_INT(op2));
-                    sp--;
-                } else {
-                    if (js_binary_logic_slow(ctx, sp, opcode))
-                        goto exception;
-                    sp--;
-                }
-            }
-            BREAK;
-        CASE(OP_or):
-            {
-                JSValue op1, op2;
-                op1 = sp[-2];
-                op2 = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
-                    sp[-2] = JS_NewInt32(ctx,
-                                         JS_VALUE_GET_INT(op1) |
-                                         JS_VALUE_GET_INT(op2));
-                    sp--;
-                } else {
-                    if (js_binary_logic_slow(ctx, sp, opcode))
-                        goto exception;
-                    sp--;
-                }
-            }
-            BREAK;
-        CASE(OP_xor):
-            {
-                JSValue op1, op2;
-                op1 = sp[-2];
-                op2 = sp[-1];
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
-                    sp[-2] = JS_NewInt32(ctx,
-                                         JS_VALUE_GET_INT(op1) ^
-                                         JS_VALUE_GET_INT(op2));
-                    sp--;
-                } else {
-                    if (js_binary_logic_slow(ctx, sp, opcode))
-                        goto exception;
-                    sp--;
-                }
-            }
-            BREAK;
-
-
-#define OP_CMP(opcode, binary_op, slow_call)              \
-            CASE(opcode):                                 \
-                {                                         \
-                JSValue op1, op2;                         \
-                op1 = sp[-2];                             \
-                op2 = sp[-1];                                   \
-                if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {           \
-                    sp[-2] = JS_NewBool(ctx, JS_VALUE_GET_INT(op1) binary_op JS_VALUE_GET_INT(op2)); \
-                    sp--;                                               \
-                } else {                                                \
-                    if (slow_call)                                      \
-                        goto exception;                                 \
-                    sp--;                                               \
-                }                                                       \
-                }                                                       \
-            BREAK
-
-            OP_CMP(OP_lt, <, js_relational_slow(ctx, sp, opcode));
-            OP_CMP(OP_lte, <=, js_relational_slow(ctx, sp, opcode));
-            OP_CMP(OP_gt, >, js_relational_slow(ctx, sp, opcode));
-            OP_CMP(OP_gte, >=, js_relational_slow(ctx, sp, opcode));
-            OP_CMP(OP_eq, ==, js_eq_slow(ctx, sp, 0));
-            OP_CMP(OP_neq, !=, js_eq_slow(ctx, sp, 1));
-            OP_CMP(OP_strict_eq, ==, js_strict_eq_slow(ctx, sp, 0));
-            OP_CMP(OP_strict_neq, !=, js_strict_eq_slow(ctx, sp, 1));
-
-#ifdef CONFIG_BIGNUM
-        CASE(OP_mul_pow10):
-            if (js_mul_pow10(ctx, sp))
-                goto exception;
-            sp--;
-            BREAK;
-#endif
-        CASE(OP_in):
-            if (js_operator_in(ctx, sp))
-                goto exception;
-            sp--;
-            BREAK;
-        CASE(OP_instanceof):
-            if (js_operator_instanceof(ctx, sp))
-                goto exception;
-            sp--;
-            BREAK;
-        CASE(OP_typeof):
-            {
-                JSValue op1;
-                JSAtom atom;
-
-                op1 = sp[-1];
-                atom = js_operator_typeof(ctx, op1);
-                JS_FreeValue(ctx, op1);
-                sp[-1] = JS_AtomToString(ctx, atom);
-            }
-            BREAK;
-        CASE(OP_delete):
-            if (js_operator_delete(ctx, sp))
-                goto exception;
-            sp--;
-            BREAK;
-        CASE(OP_delete_var):
-            {
-                JSAtom atom;
-                int ret;
-
-                atom = get_u32(pc);
-                pc += 4;
-
-                ret = JS_DeleteProperty(ctx, ctx->global_obj, atom, 0);
-                if (unlikely(ret < 0))
-                    goto exception;
-                *sp++ = JS_NewBool(ctx, ret);
-            }
-            BREAK;
-
-        CASE(OP_to_object):
-            if (JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_OBJECT) {
-                ret_val = JS_ToObject(ctx, sp[-1]);
-                if (JS_IsException(ret_val))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-                sp[-1] = ret_val;
-            }
-            BREAK;
-
-        CASE(OP_to_propkey):
-            switch (JS_VALUE_GET_TAG(sp[-1])) {
-            case JS_TAG_INT:
-            case JS_TAG_STRING:
-            case JS_TAG_SYMBOL:
-                break;
-            default:
-                ret_val = JS_ToPropertyKey(ctx, sp[-1]);
-                if (JS_IsException(ret_val))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-                sp[-1] = ret_val;
-                break;
-            }
-            BREAK;
-
-        CASE(OP_to_propkey2):
-            /* must be tested first */
-            if (unlikely(JS_IsUndefined(sp[-2]) || JS_IsNull(sp[-2]))) {
-                JS_ThrowTypeError(ctx, "value has no property");
-                goto exception;
-            }
-            switch (JS_VALUE_GET_TAG(sp[-1])) {
-            case JS_TAG_INT:
-            case JS_TAG_STRING:
-            case JS_TAG_SYMBOL:
-                break;
-            default:
-                ret_val = JS_ToPropertyKey(ctx, sp[-1]);
-                if (JS_IsException(ret_val))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-                sp[-1] = ret_val;
-                break;
-            }
-            BREAK;
-#if 0
-        CASE(OP_to_string):
-            if (JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_STRING) {
-                ret_val = JS_ToString(ctx, sp[-1]);
-                if (JS_IsException(ret_val))
-                    goto exception;
-                JS_FreeValue(ctx, sp[-1]);
-                sp[-1] = ret_val;
-            }
-            BREAK;
-#endif
-        CASE(OP_with_get_var):
-        CASE(OP_with_put_var):
-        CASE(OP_with_delete_var):
-        CASE(OP_with_make_ref):
-        CASE(OP_with_get_ref):
-        CASE(OP_with_get_ref_undef):
-            {
-                JSAtom atom;
-                int32_t diff;
-                JSValue obj, val;
-                int ret, is_with;
-                atom = get_u32(pc);
-                diff = get_u32(pc + 4);
-                is_with = pc[8];
-                pc += 9;
-
-                obj = sp[-1];
-                ret = JS_HasProperty(ctx, obj, atom);
-                if (unlikely(ret < 0))
-                    goto exception;
-                if (ret) {
-                    if (is_with) {
-                        ret = js_has_unscopable(ctx, obj, atom);
-                        if (unlikely(ret < 0))
-                            goto exception;
-                        if (ret)
-                            goto no_with;
-                    }
-                    switch (opcode) {
-                    case OP_with_get_var:
-                        val = JS_GetProperty(ctx, obj, atom);
-                        if (unlikely(JS_IsException(val)))
-                            goto exception;
-                        set_value(ctx, &sp[-1], val);
-                        break;
-                    case OP_with_put_var:
-                        ret = JS_SetPropertyInternal(ctx, obj, atom, sp[-2],
-                                                     JS_PROP_THROW_STRICT);
-                        JS_FreeValue(ctx, sp[-1]);
-                        sp -= 2;
-                        if (unlikely(ret < 0))
-                            goto exception;
-                        break;
-                    case OP_with_delete_var:
-                        ret = JS_DeleteProperty(ctx, obj, atom, 0);
-                        if (unlikely(ret < 0))
-                            goto exception;
-                        JS_FreeValue(ctx, sp[-1]);
-                        sp[-1] = JS_NewBool(ctx, ret);
-                        break;
-                    case OP_with_make_ref:
-                        /* produce a pair object/propname on the stack */
-                        *sp++ = JS_AtomToValue(ctx, atom);
-                        break;
-                    case OP_with_get_ref:
-                        /* produce a pair object/method on the stack */
-                        val = JS_GetProperty(ctx, obj, atom);
-                        if (unlikely(JS_IsException(val)))
-                            goto exception;
-                        *sp++ = val;
-                        break;
-                    case OP_with_get_ref_undef:
-                        /* produce a pair undefined/function on the stack */
-                        val = JS_GetProperty(ctx, obj, atom);
-                        if (unlikely(JS_IsException(val)))
-                            goto exception;
-                        JS_FreeValue(ctx, sp[-1]);
-                        sp[-1] = JS_UNDEFINED;
-                        *sp++ = val;
-                        break;
-                    }
-                    pc += diff - 5;
-                } else {
-                no_with:
-                    /* if not jumping, drop the object argument */
-                    JS_FreeValue(ctx, sp[-1]);
-                    sp--;
-                }
-            }
-            BREAK;
-
-        CASE(OP_await):
-            ret_val = JS_NewInt32(ctx, FUNC_RET_AWAIT);
-            goto done_generator;
-        CASE(OP_yield):
-            ret_val = JS_NewInt32(ctx, FUNC_RET_YIELD);
-            goto done_generator;
-        CASE(OP_yield_star):
-        CASE(OP_async_yield_star):
-            ret_val = JS_NewInt32(ctx, FUNC_RET_YIELD_STAR);
-            goto done_generator;
-        CASE(OP_return_async):
-        CASE(OP_initial_yield):
-            ret_val = JS_UNDEFINED;
-            goto done_generator;
-
-        CASE(OP_nop):
-            BREAK;
-#if SHORT_OPCODES
-        CASE(OP_is_undefined):
-            if (JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_UNDEFINED) {
-                goto set_true;
-            } else {
-                goto free_and_set_false;
-            }
-        CASE(OP_is_null):
-            if (JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_NULL) {
-                goto set_true;
-            } else {
-                goto free_and_set_false;
-            }
-        CASE(OP_is_function):
-            if (js_operator_typeof(ctx, sp[-1]) == JS_ATOM_function) {
-                goto free_and_set_true;
-            } else {
-                goto free_and_set_false;
-            }
-        free_and_set_true:
-            JS_FreeValue(ctx, sp[-1]);
-        set_true:
-            sp[-1] = JS_TRUE;
-            BREAK;
-        free_and_set_false:
-            JS_FreeValue(ctx, sp[-1]);
-            sp[-1] = JS_FALSE;
-            BREAK;
-#endif
-        CASE(OP_invalid):
-        DEFAULT:
-            JS_ThrowInternalError(ctx, "invalid opcode: pc=%u opcode=0x%02x",
-                                  (int)(pc - b->byte_code_buf - 1), opcode);
-            goto exception;
-        }
-    }
- exception:
-    if (ctx->exception_needs_backtrace) {
-        /* add the backtrace information now (it is not done
-           before if the exception happens in a bytecode
-           operation */
-        build_backtrace(ctx, ctx->current_exception, NULL, 0, pc);
-    }
-    if (!JS_IsUncatchableError(ctx, ctx->current_exception)) {
-        while (sp > stack_buf) {
-            JSValue val = *--sp;
-            JS_FreeValue(ctx, val);
-            if (JS_VALUE_GET_TAG(val) == JS_TAG_CATCH_OFFSET) {
-                int pos = JS_VALUE_GET_INT(val);
-                if (pos == 0) {
-                    /* enumerator: close it with a throw */
-                    JS_FreeValue(ctx, sp[-1]); /* drop the next method */
-                    sp--;
-                    JS_IteratorClose(ctx, sp[-1], TRUE);
-                } else {
-                    *sp++ = ctx->current_exception;
-                    ctx->current_exception = JS_NULL;
-                    pc = b->byte_code_buf + pos;
-                    goto restart;
-                }
-            }
-        }
-    }
-    ret_val = JS_EXCEPTION;
-    /* the local variables are freed by the caller in the generator
-       case. Hence the label 'done' should never be reached in a
-       generator function. */
-    if (b->func_kind != JS_FUNC_NORMAL) {
-    done_generator:
-        sf->cur_pc = pc;
-        sf->cur_sp = sp;
-    } else {
-    done:
-        if (unlikely(!list_empty(&sf->var_ref_list))) {
-            /* variable references reference the stack: must close them */
-            close_var_refs(ctx->rt, sf);
-        }
-        /* free the local variables and stack */
-        for(pval = local_buf; pval < sp; pval++) {
-            JS_FreeValue(ctx, *pval);
-        }
-    }
-    ctx->current_stack_frame = sf->prev_frame;
-    return ret_val;
-}
-
-JSValue JS_Call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj,
-                int argc, JSValueConst *argv)
-{
-    return JS_CallInternal(ctx, func_obj, this_obj, JS_UNDEFINED,
-                           argc, (JSValue *)argv, CALL_FLAG_COPY_ARGV);
-}
-
-static JSValue JS_CallFree(JSContext *ctx, JSValue func_obj, JSValueConst this_obj,
-                           int argc, JSValueConst *argv)
-{
-    JSValue res = JS_CallInternal(ctx, func_obj, this_obj, JS_UNDEFINED,
-                                  argc, (JSValue *)argv, CALL_FLAG_COPY_ARGV);
-    JS_FreeValue(ctx, func_obj);
-    return res;
-}
-
-static JSValue js_get_prototype_from_ctor(JSContext *ctx, JSValueConst ctor,
-                                          JSValueConst def_proto)
-{
-    JSValue proto;
-    proto = JS_GetProperty(ctx, ctor, JS_ATOM_prototype);
-    if (JS_IsException(proto))
-        return proto;
-    if (!JS_IsObject(proto)) {
-        JS_FreeValue(ctx, proto);
-        proto = JS_DupValue(ctx, def_proto);
-    }
-    return proto;
-}
-
-static JSValue js_create_from_ctor(JSContext *ctx, JSValueConst ctor,
-                                   int class_id)
-{
-    JSValue proto, obj;
-    if (JS_IsUndefined(ctor)) {
-        proto = JS_DupValue(ctx, ctx->class_proto[class_id]);
-    } else {
-        proto = JS_GetProperty(ctx, ctor, JS_ATOM_prototype);
-        if (JS_IsException(proto))
-            return proto;
-        if (!JS_IsObject(proto)) {
-            JS_FreeValue(ctx, proto);
-            /* check if revoked proxy */
-            {
-                JSProxyData *s = JS_GetOpaque(ctor, JS_CLASS_PROXY);
-                if (s && s->is_revoked)
-                    return JS_ThrowTypeErrorRevokedProxy(ctx);
-            }
-            /* XXX: should use the ctor realm instead of 'ctx' */
-            proto = JS_DupValue(ctx, ctx->class_proto[class_id]);
-        }
-    }
-    obj = JS_NewObjectProtoClass(ctx, proto, class_id);
-    JS_FreeValue(ctx, proto);
-    return obj;
-}
-
-/* argv[] is modified if (flags & CALL_FLAG_COPY_ARGV) = 0. */
-static JSValue JS_CallConstructorInternal(JSContext *ctx,
-                                          JSValueConst func_obj,
-                                          JSValueConst new_target,
-                                          int argc, JSValue *argv, int flags)
-{
-    JSObject *p;
-    JSFunctionBytecode *b;
-
-    if (js_poll_interrupts(ctx))
-        return JS_EXCEPTION;
-    flags |= CALL_FLAG_CONSTRUCTOR;
-    if (unlikely(JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT))
-        goto not_a_function;
-    p = JS_VALUE_GET_OBJ(func_obj);
-    if (unlikely(!p->is_constructor))
-        return JS_ThrowTypeError(ctx, "not a constructor");
-    if (unlikely(p->class_id != JS_CLASS_BYTECODE_FUNCTION)) {
-        switch(p->class_id) {
-        case JS_CLASS_C_FUNCTION:
-            return js_call_c_function(ctx, func_obj, new_target,
-                                      argc, (JSValueConst *)argv, flags);
-        case JS_CLASS_BOUND_FUNCTION:
-            return js_call_bound_function(ctx, func_obj, new_target, argc,
-                                          (JSValueConst *)argv, flags);
-        case JS_CLASS_PROXY:
-            return js_proxy_call_constructor(ctx, func_obj, new_target, argc,
-                                             (JSValueConst *)argv);
-        default:
-        not_a_function:
-            return JS_ThrowTypeError(ctx, "not a function");
-        }
-    }
-
-    b = p->u.func.function_bytecode;
-    if (b->is_derived_class_constructor) {
-        return JS_CallInternal(ctx, func_obj, JS_UNDEFINED, new_target, argc, argv, flags);
-    } else {
-        JSValue obj, ret;
-        /* legacy constructor behavior */
-        obj = js_create_from_ctor(ctx, new_target, JS_CLASS_OBJECT);
-        if (JS_IsException(obj))
-            return JS_EXCEPTION;
-        ret = JS_CallInternal(ctx, func_obj, obj, new_target, argc, argv, flags);
-        if (JS_VALUE_GET_TAG(ret) == JS_TAG_OBJECT ||
-            JS_IsException(ret)) {
-            JS_FreeValue(ctx, obj);
-            return ret;
-        } else {
-            JS_FreeValue(ctx, ret);
-            return obj;
-        }
-    }
-}
-
-JSValue JS_CallConstructor2(JSContext *ctx, JSValueConst func_obj,
-                            JSValueConst new_target,
-                            int argc, JSValueConst *argv)
-{
-    return JS_CallConstructorInternal(ctx, func_obj, new_target,
-                                      argc, (JSValue *)argv,
-                                      CALL_FLAG_COPY_ARGV);
-}
-
-JSValue JS_CallConstructor(JSContext *ctx, JSValueConst func_obj,
-                           int argc, JSValueConst *argv)
-{
-    return JS_CallConstructorInternal(ctx, func_obj, func_obj,
-                                      argc, (JSValue *)argv,
-                                      CALL_FLAG_COPY_ARGV);
-}
-
-JSValue JS_Invoke(JSContext *ctx, JSValueConst this_val, JSAtom atom,
-                  int argc, JSValueConst *argv)
-{
-    JSValue func_obj;
-    func_obj = JS_GetProperty(ctx, this_val, atom);
-    if (JS_IsException(func_obj))
-        return func_obj;
-    return JS_CallFree(ctx, func_obj, this_val, argc, argv);
-}
-
-static JSValue JS_InvokeFree(JSContext *ctx, JSValue this_val, JSAtom atom,
-                             int argc, JSValueConst *argv)
-{
-    JSValue res = JS_Invoke(ctx, this_val, atom, argc, argv);
-    JS_FreeValue(ctx, this_val);
-    return res;
-}
-
-/* JSAsyncFunctionState (used by generator and async functions) */
-static __exception int async_func_init(JSContext *ctx, JSAsyncFunctionState *s,
-                                       JSValueConst func_obj, JSValueConst this_obj,
-                                       int argc, JSValueConst *argv)
-{
-    JSObject *p;
-    JSFunctionBytecode *b;
-    JSStackFrame *sf;
-    int local_count, i, arg_buf_len, n;
-
-    sf = &s->frame;
-    init_list_head(&sf->var_ref_list);
-    p = JS_VALUE_GET_OBJ(func_obj);
-    b = p->u.func.function_bytecode;
-    sf->js_mode = b->js_mode;
-    sf->cur_pc = b->byte_code_buf;
-    arg_buf_len = max_int(b->arg_count, argc);
-    local_count = arg_buf_len + b->var_count + b->stack_size;
-    sf->arg_buf = js_malloc(ctx, sizeof(JSValue) * max_int(local_count, 1));
-    if (!sf->arg_buf)
-        return -1;
-    sf->cur_func = JS_DupValue(ctx, func_obj);
-    s->this_val = JS_DupValue(ctx, this_obj);
-    s->argc = argc;
-    sf->arg_count = arg_buf_len;
-    sf->var_buf = sf->arg_buf + arg_buf_len;
-    sf->cur_sp = sf->var_buf + b->var_count;
-    for(i = 0; i < argc; i++)
-        sf->arg_buf[i] = JS_DupValue(ctx, argv[i]);
-    n = arg_buf_len + b->var_count;
-    for(i = argc; i < n; i++)
-        sf->arg_buf[i] = JS_UNDEFINED;
-    return 0;
-}
-
-static void async_func_mark(JSRuntime *rt, JSAsyncFunctionState *s,
-                            JS_MarkFunc *mark_func)
-{
-    JSStackFrame *sf;
-    JSValue *sp;
-
-    sf = &s->frame;
-    JS_MarkValue(rt, sf->cur_func, mark_func);
-    JS_MarkValue(rt, s->this_val, mark_func);
-    if (sf->cur_sp) {
-        /* if the function is running, cur_sp is not known so we
-           cannot mark the stack. Marking the variables is not needed
-           because a running function cannot be part of a removable
-           cycle */
-        for(sp = sf->arg_buf; sp < sf->cur_sp; sp++)
-            JS_MarkValue(rt, *sp, mark_func);
-    }
-}
-
-static void async_func_free(JSRuntime *rt, JSAsyncFunctionState *s)
-{
-    JSStackFrame *sf;
-    JSValue *sp;
-
-    sf = &s->frame;
-
-    /* close the closure variables. */
-    close_var_refs(rt, sf);
-    
-    if (sf->arg_buf) {
-        /* cannot free the function if it is running */
-        assert(sf->cur_sp != NULL);
-        for(sp = sf->arg_buf; sp < sf->cur_sp; sp++) {
-            JS_FreeValueRT(rt, *sp);
-        }
-        js_free_rt(rt, sf->arg_buf);
-    }
-    JS_FreeValueRT(rt, sf->cur_func);
-    JS_FreeValueRT(rt, s->this_val);
-}
-
-static JSValue async_func_resume(JSContext *ctx, JSAsyncFunctionState *s)
-{
-    JSValue func_obj;
-
-    /* the tag does not matter provided it is not an object */
-    func_obj = JS_MKPTR(JS_TAG_INT, s);
-    return JS_CallInternal(ctx, func_obj, s->this_val, JS_UNDEFINED,
-                           s->argc, s->frame.arg_buf, CALL_FLAG_GENERATOR);
-}
-
-
-/* Generators */
-
-typedef enum JSGeneratorStateEnum {
-    JS_GENERATOR_STATE_SUSPENDED_START,
-    JS_GENERATOR_STATE_SUSPENDED_YIELD,
-    JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR,
-    JS_GENERATOR_STATE_EXECUTING,
-    JS_GENERATOR_STATE_COMPLETED,
-} JSGeneratorStateEnum;
-
-typedef struct JSGeneratorData {
-    JSGeneratorStateEnum state;
-    JSAsyncFunctionState func_state;
-} JSGeneratorData;
-
-static void free_generator_stack_rt(JSRuntime *rt, JSGeneratorData *s)
-{
-    if (s->state == JS_GENERATOR_STATE_COMPLETED)
-        return;
-    async_func_free(rt, &s->func_state);
-    s->state = JS_GENERATOR_STATE_COMPLETED;
-}
-
-static void js_generator_finalizer(JSRuntime *rt, JSValue obj)
-{
-    JSGeneratorData *s = JS_GetOpaque(obj, JS_CLASS_GENERATOR);
-
-    if (s) {
-        free_generator_stack_rt(rt, s);
-        js_free_rt(rt, s);
-    }
-}
-
-static void free_generator_stack(JSContext *ctx, JSGeneratorData *s)
-{
-    free_generator_stack_rt(ctx->rt, s);
-}
-
-static void js_generator_mark(JSRuntime *rt, JSValueConst val,
-                              JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSGeneratorData *s = p->u.generator_data;
-
-    if (!s || s->state == JS_GENERATOR_STATE_COMPLETED)
-        return;
-    async_func_mark(rt, &s->func_state, mark_func);
-}
-
-/* XXX: use enum */
-#define GEN_MAGIC_NEXT   0
-#define GEN_MAGIC_RETURN 1
-#define GEN_MAGIC_THROW  2
-
-static JSValue js_generator_next(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv,
-                                 BOOL *pdone, int magic)
-{
-    JSGeneratorData *s = JS_GetOpaque(this_val, JS_CLASS_GENERATOR);
-    JSStackFrame *sf;
-    JSValue ret, func_ret;
-    JSValueConst iter_args[1];
-
-    *pdone = TRUE;
-    if (!s)
-        return JS_ThrowTypeError(ctx, "not a generator");
-    sf = &s->func_state.frame;
- redo:
-    switch(s->state) {
-    default:
-    case JS_GENERATOR_STATE_SUSPENDED_START:
-        if (magic == GEN_MAGIC_NEXT) {
-            goto exec_no_arg;
-        } else {
-            free_generator_stack(ctx, s);
-            goto done;
-        }
-        break;
-    case JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR:
-        {
-            int done;
-            JSValue method, iter_obj;
-
-            iter_obj = sf->cur_sp[-2];
-            if (magic == GEN_MAGIC_NEXT) {
-                method = JS_DupValue(ctx, sf->cur_sp[-1]);
-            } else {
-                method = JS_GetProperty(ctx, iter_obj,
-                                        magic == GEN_MAGIC_RETURN ?
-                                        JS_ATOM_return : JS_ATOM_throw);
-                if (JS_IsException(method))
-                    goto iter_exception;
-            }
-            if (magic != GEN_MAGIC_NEXT &&
-                (JS_IsUndefined(method) || JS_IsNull(method))) {
-                /* default action */
-                if (magic == GEN_MAGIC_RETURN) {
-                    ret = JS_DupValue(ctx, argv[0]);
-                    goto iter_done;
-                } else {
-                    if (JS_IteratorClose(ctx, iter_obj, FALSE))
-                        goto iter_exception;
-                    JS_ThrowTypeError(ctx, "iterator does not have a throw method");
-                    goto iter_exception;
-                }
-            }
-            ret = JS_IteratorNext2(ctx, iter_obj, method, argc, argv, &done);
-            JS_FreeValue(ctx, method);
-            if (JS_IsException(ret)) {
-            iter_exception:
-                goto exec_throw;
-            }
-            /* if not done, the iterator returns the exact object
-               returned by 'method' */
-            if (done == 2) {
-                JSValue done_val, value;
-                done_val = JS_GetProperty(ctx, ret, JS_ATOM_done);
-                if (JS_IsException(done_val)) {
-                    JS_FreeValue(ctx, ret);
-                    goto iter_exception;
-                }
-                done = JS_ToBoolFree(ctx, done_val);
-                if (done) {
-                    value = JS_GetProperty(ctx, ret, JS_ATOM_value);
-                    JS_FreeValue(ctx, ret);
-                    if (JS_IsException(value))
-                        goto iter_exception;
-                    ret = value;
-                    goto iter_done;
-                } else {
-                    *pdone = 2;
-                }
-            } else {
-                if (done) {
-                    /* 'yield *' returns the value associated to done = true */
-                iter_done:
-                    JS_FreeValue(ctx, sf->cur_sp[-2]);
-                    JS_FreeValue(ctx, sf->cur_sp[-1]);
-                    sf->cur_sp--;
-                    goto exec_arg;
-                } else {
-                    *pdone = FALSE;
-                }
-            }
-            break;
-        }
-        break;
-    case JS_GENERATOR_STATE_SUSPENDED_YIELD:
-        /* cur_sp[-1] was set to JS_UNDEFINED in the previous call */
-        ret = JS_DupValue(ctx, argv[0]);
-        if (magic == GEN_MAGIC_THROW) {
-            JS_Throw(ctx, ret);
-        exec_throw:
-            s->func_state.throw_flag = TRUE;
-        } else {
-        exec_arg:
-            sf->cur_sp[-1] = ret;
-            sf->cur_sp[0] = JS_NewBool(ctx, (magic == GEN_MAGIC_RETURN));
-            sf->cur_sp++;
-        exec_no_arg:
-            s->func_state.throw_flag = FALSE;
-        }
-        s->state = JS_GENERATOR_STATE_EXECUTING;
-        func_ret = async_func_resume(ctx, &s->func_state);
-        s->state = JS_GENERATOR_STATE_SUSPENDED_YIELD;
-        if (JS_IsException(func_ret)) {
-            /* finalize the execution in case of exception */
-            free_generator_stack(ctx, s);
-            return func_ret;
-        }
-        if (JS_VALUE_GET_TAG(func_ret) == JS_TAG_INT) {
-            if (JS_VALUE_GET_INT(func_ret) == FUNC_RET_YIELD_STAR) {
-                /* 'yield *' */
-                s->state = JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR;
-                iter_args[0] = JS_UNDEFINED;
-                argc = 1;
-                argv = iter_args;
-                goto redo;
-            } else {
-                /* get the return the yield value at the top of the stack */
-                ret = sf->cur_sp[-1];
-                sf->cur_sp[-1] = JS_UNDEFINED;
-                *pdone = FALSE;
-            }
-        } else {
-            /* end of iterator */
-            ret = sf->cur_sp[-1];
-            sf->cur_sp[-1] = JS_UNDEFINED;
-            JS_FreeValue(ctx, func_ret);
-            free_generator_stack(ctx, s);
-        }
-        break;
-    case JS_GENERATOR_STATE_COMPLETED:
-    done:
-        /* execution is finished */
-        switch(magic) {
-        default:
-        case GEN_MAGIC_NEXT:
-            ret = JS_UNDEFINED;
-            break;
-        case GEN_MAGIC_RETURN:
-            ret = JS_DupValue(ctx, argv[0]);
-            break;
-        case GEN_MAGIC_THROW:
-            ret = JS_Throw(ctx, JS_DupValue(ctx, argv[0]));
-            break;
-        }
-        break;
-    case JS_GENERATOR_STATE_EXECUTING:
-        ret = JS_ThrowTypeError(ctx, "cannot invoke a running generator");
-        break;
-    }
-    return ret;
-}
-
-static JSValue js_generator_function_call(JSContext *ctx, JSValueConst func_obj,
-                                          JSValueConst this_obj,
-                                          int argc, JSValueConst *argv)
-{
-    JSValue obj, func_ret;
-    JSGeneratorData *s;
-
-    s = js_mallocz(ctx, sizeof(*s));
-    if (!s)
-        return JS_EXCEPTION;
-    s->state = JS_GENERATOR_STATE_SUSPENDED_START;
-    if (async_func_init(ctx, &s->func_state, func_obj, this_obj, argc, argv)) {
-        s->state = JS_GENERATOR_STATE_COMPLETED;
-        goto fail;
-    }
-
-    /* execute the function up to 'OP_initial_yield' */
-    func_ret = async_func_resume(ctx, &s->func_state);
-    if (JS_IsException(func_ret))
-        goto fail;
-    JS_FreeValue(ctx, func_ret);
-
-    obj = js_create_from_ctor(ctx, func_obj, JS_CLASS_GENERATOR);
-    if (JS_IsException(obj))
-        goto fail;
-    JS_SetOpaque(obj, s);
-    return obj;
- fail:
-    free_generator_stack_rt(ctx->rt, s);
-    js_free(ctx, s);
-    return JS_EXCEPTION;
-}
-
-/* AsyncFunction */
-
-static void js_async_function_terminate(JSRuntime *rt, JSContext *ctx,
-                                        JSAsyncFunctionData *s)
-{
-    if (s->is_active) {
-        async_func_free(rt, &s->func_state);
-        s->is_active = FALSE;
-    }
-}
-
-/* ctx can be NULL */
-static void js_async_function_free(JSRuntime *rt, JSContext *ctx,
-                                   JSAsyncFunctionData *s)
-{
-    if (--s->header.ref_count == 0) {
-        js_async_function_terminate(rt, ctx, s);
-        JS_FreeValueRT(rt, s->resolving_funcs[0]);
-        JS_FreeValueRT(rt, s->resolving_funcs[1]);
-        js_free_rt(rt, s);
-    }
-}
-
-static void js_async_function_resolve_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSAsyncFunctionData *s = p->u.async_function_data;
-    if (s) {
-        js_async_function_free(rt, NULL, s);
-    }
-}
-
-static void js_async_function_resolve_mark(JSRuntime *rt, JSValueConst val,
-                                           JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSAsyncFunctionData *s = p->u.async_function_data;
-    if (s) {
-        JS_MarkValue(rt, JS_MKPTR(JS_TAG_ASYNC_FUNCTION, s), mark_func);
-    }
-}
-
-static int js_async_function_resolve_create(JSContext *ctx,
-                                            JSAsyncFunctionData *s,
-                                            JSValue *resolving_funcs)
-{
-    int i;
-    JSObject *p;
-
-    for(i = 0; i < 2; i++) {
-        resolving_funcs[i] =
-            JS_NewObjectProtoClass(ctx, ctx->function_proto,
-                                   JS_CLASS_ASYNC_FUNCTION_RESOLVE + i);
-        if (JS_IsException(resolving_funcs[i])) {
-            if (i == 1)
-                JS_FreeValue(ctx, resolving_funcs[0]);
-            return -1;
-        }
-        p = JS_VALUE_GET_OBJ(resolving_funcs[i]);
-        s->header.ref_count++;
-        p->u.async_function_data = s;
-    }
-    return 0;
-}
-
-static void js_async_function_resume(JSContext *ctx, JSAsyncFunctionData *s)
-{
-    JSValue func_ret, ret2;
-
-    func_ret = async_func_resume(ctx, &s->func_state);
-    if (JS_IsException(func_ret)) {
-        JSValue error;
-    fail:
-        error = JS_GetException(ctx);
-        ret2 = JS_Call(ctx, s->resolving_funcs[1], JS_UNDEFINED,
-                       1, (JSValueConst *)&error);
-        JS_FreeValue(ctx, error);
-        js_async_function_terminate(ctx->rt, ctx, s);
-        JS_FreeValue(ctx, ret2); /* XXX: what to do if exception ? */
-    } else {
-        JSValue value;
-        value = s->func_state.frame.cur_sp[-1];
-        s->func_state.frame.cur_sp[-1] = JS_UNDEFINED;
-        if (JS_IsUndefined(func_ret)) {
-            /* function returned */
-            ret2 = JS_Call(ctx, s->resolving_funcs[0], JS_UNDEFINED,
-                           1, (JSValueConst *)&value);
-            JS_FreeValue(ctx, ret2); /* XXX: what to do if exception ? */
-            JS_FreeValue(ctx, value);
-            js_async_function_terminate(ctx->rt, ctx, s);
-        } else {
-            JSValue promise, resolving_funcs[2], resolving_funcs1[2];
-            int i, res;
-
-            /* await */
-            JS_FreeValue(ctx, func_ret); /* not used */
-            promise = js_promise_resolve(ctx, ctx->promise_ctor,
-                                         1, (JSValueConst *)&value, 0);
-            JS_FreeValue(ctx, value);
-            if (JS_IsException(promise))
-                goto fail;
-            if (js_async_function_resolve_create(ctx, s, resolving_funcs)) {
-                JS_FreeValue(ctx, promise);
-                goto fail;
-            }
-
-            /* Note: no need to create 'thrownawayCapability' as in
-               the spec */
-            for(i = 0; i < 2; i++)
-                resolving_funcs1[i] = JS_UNDEFINED;
-            res = perform_promise_then(ctx, promise,
-                                       (JSValueConst *)resolving_funcs,
-                                       (JSValueConst *)resolving_funcs1);
-            JS_FreeValue(ctx, promise);
-            for(i = 0; i < 2; i++)
-                JS_FreeValue(ctx, resolving_funcs[i]);
-            if (res)
-                goto fail;
-        }
-    }
-}
-
-static JSValue js_async_function_resolve_call(JSContext *ctx,
-                                              JSValueConst func_obj,
-                                              JSValueConst this_obj,
-                                              int argc, JSValueConst *argv)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(func_obj);
-    JSAsyncFunctionData *s = p->u.async_function_data;
-    BOOL is_reject = p->class_id - JS_CLASS_ASYNC_FUNCTION_RESOLVE;
-    JSValueConst arg;
-
-    if (argc > 0)
-        arg = argv[0];
-    else
-        arg = JS_UNDEFINED;
-    s->func_state.throw_flag = is_reject;
-    if (is_reject) {
-        JS_Throw(ctx, JS_DupValue(ctx, arg));
-    } else {
-        /* return value of await */
-        s->func_state.frame.cur_sp[-1] = JS_DupValue(ctx, arg);
-    }
-    js_async_function_resume(ctx, s);
-    return JS_UNDEFINED;
-}
-
-static JSValue js_async_function_call(JSContext *ctx, JSValueConst func_obj,
-                                      JSValueConst this_obj,
-                                      int argc, JSValueConst *argv)
-{
-    JSValue promise;
-    JSAsyncFunctionData *s;
-
-    s = js_mallocz(ctx, sizeof(*s));
-    if (!s)
-        return JS_EXCEPTION;
-    s->header.ref_count = 1;
-    s->gc_header.mark = 0;
-    s->is_active = FALSE;
-    s->resolving_funcs[0] = JS_UNDEFINED;
-    s->resolving_funcs[1] = JS_UNDEFINED;
-
-    promise = JS_NewPromiseCapability(ctx, s->resolving_funcs);
-    if (JS_IsException(promise))
-        goto fail;
-
-    if (async_func_init(ctx, &s->func_state, func_obj, this_obj, argc, argv)) {
-    fail:
-        JS_FreeValue(ctx, promise);
-        js_async_function_free(ctx->rt, ctx, s);
-        return JS_EXCEPTION;
-    }
-    s->is_active = TRUE;
-
-    js_async_function_resume(ctx, s);
-
-    js_async_function_free(ctx->rt, ctx, s);
-
-    return promise;
-}
-
-/* AsyncGenerator */
-
-typedef enum JSAsyncGeneratorStateEnum {
-    JS_ASYNC_GENERATOR_STATE_SUSPENDED_START,
-    JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD,
-    JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR,
-    JS_ASYNC_GENERATOR_STATE_EXECUTING,
-    JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN,
-    JS_ASYNC_GENERATOR_STATE_COMPLETED,
-} JSAsyncGeneratorStateEnum;
-
-typedef struct JSAsyncGeneratorRequest {
-    struct list_head link;
-    /* completion */
-    int completion_type; /* GEN_MAGIC_x */
-    JSValue result;
-    /* promise capability */
-    JSValue promise;
-    JSValue resolving_funcs[2];
-} JSAsyncGeneratorRequest;
-
-typedef struct JSAsyncGeneratorData {
-    JSObject *generator; /* back pointer to the object (const) */
-    JSAsyncGeneratorStateEnum state;
-    JSAsyncFunctionState func_state;
-    struct list_head queue; /* list of JSAsyncGeneratorRequest.link */
-} JSAsyncGeneratorData;
-
-static void js_async_generator_free(JSRuntime *rt,
-                                    JSAsyncGeneratorData *s)
-{
-    struct list_head *el, *el1;
-    JSAsyncGeneratorRequest *req;
-
-    list_for_each_safe(el, el1, &s->queue) {
-        req = list_entry(el, JSAsyncGeneratorRequest, link);
-        JS_FreeValueRT(rt, req->result);
-        JS_FreeValueRT(rt, req->promise);
-        JS_FreeValueRT(rt, req->resolving_funcs[0]);
-        JS_FreeValueRT(rt, req->resolving_funcs[1]);
-        js_free_rt(rt, req);
-    }
-    if (s->state != JS_ASYNC_GENERATOR_STATE_COMPLETED &&
-        s->state != JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN) {
-        async_func_free(rt, &s->func_state);
-    }
-    js_free_rt(rt, s);
-}
-
-static void js_async_generator_finalizer(JSRuntime *rt, JSValue obj)
-{
-    JSAsyncGeneratorData *s = JS_GetOpaque(obj, JS_CLASS_ASYNC_GENERATOR);
-
-    if (s) {
-        js_async_generator_free(rt, s);
-    }
-}
-
-static void js_async_generator_mark(JSRuntime *rt, JSValueConst val,
-                                    JS_MarkFunc *mark_func)
-{
-    JSAsyncGeneratorData *s = JS_GetOpaque(val, JS_CLASS_ASYNC_GENERATOR);
-    struct list_head *el;
-    JSAsyncGeneratorRequest *req;
-    if (s) {
-        list_for_each(el, &s->queue) {
-            req = list_entry(el, JSAsyncGeneratorRequest, link);
-            JS_MarkValue(rt, req->result, mark_func);
-            JS_MarkValue(rt, req->promise, mark_func);
-            JS_MarkValue(rt, req->resolving_funcs[0], mark_func);
-            JS_MarkValue(rt, req->resolving_funcs[1], mark_func);
-        }
-        if (s->state != JS_ASYNC_GENERATOR_STATE_COMPLETED &&
-            s->state != JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN) {
-            async_func_mark(rt, &s->func_state, mark_func);
-        }
-    }
-}
-
-static JSValue js_async_generator_resolve_function(JSContext *ctx,
-                                          JSValueConst this_obj,
-                                          int argc, JSValueConst *argv,
-                                          int magic, JSValue *func_data);
-
-static int js_async_generator_resolve_function_create(JSContext *ctx,
-                                                      JSValueConst generator,
-                                                      JSValue *resolving_funcs,
-                                                      BOOL is_resume_next)
-{
-    int i;
-    JSValue func;
-
-    for(i = 0; i < 2; i++) {
-        func = JS_NewCFunctionData(ctx, js_async_generator_resolve_function, 1,
-                                   i + is_resume_next * 2, 1, &generator);
-        if (JS_IsException(func)) {
-            if (i == 1)
-                JS_FreeValue(ctx, resolving_funcs[0]);
-            return -1;
-        }
-        resolving_funcs[i] = func;
-    }
-    return 0;
-}
-
-static int js_async_generator_await(JSContext *ctx,
-                                    JSAsyncGeneratorData *s,
-                                    JSValueConst value)
-{
-    JSValue promise, resolving_funcs[2], resolving_funcs1[2];
-    int i, res;
-
-    promise = js_promise_resolve(ctx, ctx->promise_ctor,
-                                 1, &value, 0);
-    if (JS_IsException(promise))
-        goto fail;
-
-    if (js_async_generator_resolve_function_create(ctx, JS_MKPTR(JS_TAG_OBJECT, s->generator),
-                                                   resolving_funcs, FALSE)) {
-        JS_FreeValue(ctx, promise);
-        goto fail;
-    }
-
-    /* Note: no need to create 'thrownawayCapability' as in
-       the spec */
-    for(i = 0; i < 2; i++)
-        resolving_funcs1[i] = JS_UNDEFINED;
-    res = perform_promise_then(ctx, promise,
-                               (JSValueConst *)resolving_funcs,
-                               (JSValueConst *)resolving_funcs1);
-    JS_FreeValue(ctx, promise);
-    for(i = 0; i < 2; i++)
-        JS_FreeValue(ctx, resolving_funcs[i]);
-    if (res)
-        goto fail;
-    return 0;
- fail:
-    return -1;
-}
-
-static void js_async_generator_resolve_or_reject(JSContext *ctx,
-                                                 JSAsyncGeneratorData *s,
-                                                 JSValueConst result,
-                                                 int is_reject)
-{
-    JSAsyncGeneratorRequest *next;
-    JSValue ret;
-
-    next = list_entry(s->queue.next, JSAsyncGeneratorRequest, link);
-    list_del(&next->link);
-    ret = JS_Call(ctx, next->resolving_funcs[is_reject], JS_UNDEFINED, 1,
-                  &result);
-    JS_FreeValue(ctx, ret);
-    JS_FreeValue(ctx, next->result);
-    JS_FreeValue(ctx, next->promise);
-    JS_FreeValue(ctx, next->resolving_funcs[0]);
-    JS_FreeValue(ctx, next->resolving_funcs[1]);
-    js_free(ctx, next);
-}
-
-static void js_async_generator_resolve(JSContext *ctx,
-                                       JSAsyncGeneratorData *s,
-                                       JSValueConst value,
-                                       BOOL done)
-{
-    JSValue result;
-    result = js_create_iterator_result(ctx, JS_DupValue(ctx, value), done);
-    /* XXX: better exception handling ? */
-    js_async_generator_resolve_or_reject(ctx, s, result, 0);
-    JS_FreeValue(ctx, result);
- }
-
-static void js_async_generator_reject(JSContext *ctx,
-                                       JSAsyncGeneratorData *s,
-                                       JSValueConst exception)
-{
-    js_async_generator_resolve_or_reject(ctx, s, exception, 1);
-}
-
-static void js_async_generator_complete(JSContext *ctx,
-                                        JSAsyncGeneratorData *s)
-{
-    if (s->state != JS_ASYNC_GENERATOR_STATE_COMPLETED) {
-        s->state = JS_ASYNC_GENERATOR_STATE_COMPLETED;
-        async_func_free(ctx->rt, &s->func_state);
-    }
-}
-
-static int js_async_generator_completed_return(JSContext *ctx,
-                                               JSAsyncGeneratorData *s,
-                                               JSValueConst value)
-{
-    JSValue promise, resolving_funcs[2], resolving_funcs1[2];
-    int res;
-
-    promise = js_promise_resolve(ctx, ctx->promise_ctor,
-                                 1, (JSValueConst *)&value, 0);
-    if (JS_IsException(promise))
-        return -1;
-    if (js_async_generator_resolve_function_create(ctx,
-                                                   JS_MKPTR(JS_TAG_OBJECT, s->generator),
-                                                   resolving_funcs1,
-                                                   TRUE)) {
-        JS_FreeValue(ctx, promise);
-        return -1;
-    }
-    resolving_funcs[0] = JS_UNDEFINED;
-    resolving_funcs[1] = JS_UNDEFINED;
-    res = perform_promise_then(ctx, promise,
-                               (JSValueConst *)resolving_funcs1,
-                               (JSValueConst *)resolving_funcs);
-    JS_FreeValue(ctx, resolving_funcs1[0]);
-    JS_FreeValue(ctx, resolving_funcs1[1]);
-    JS_FreeValue(ctx, promise);
-    return res;
-}
-
-static void js_async_generator_resume_next(JSContext *ctx,
-                                           JSAsyncGeneratorData *s)
-{
-    JSAsyncGeneratorRequest *next;
-    JSValue func_ret, value;
-
-    for(;;) {
-        if (list_empty(&s->queue))
-            break;
-        next = list_entry(s->queue.next, JSAsyncGeneratorRequest, link);
-        switch(s->state) {
-        case JS_ASYNC_GENERATOR_STATE_EXECUTING:
-            /* only happens when restarting execution after await() */
-            goto resume_exec;
-        case JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN:
-            goto done;
-        case JS_ASYNC_GENERATOR_STATE_SUSPENDED_START:
-            if (next->completion_type == GEN_MAGIC_NEXT) {
-                goto exec_no_arg;
-            } else {
-                js_async_generator_complete(ctx, s);
-            }
-            break;
-        case JS_ASYNC_GENERATOR_STATE_COMPLETED:
-            if (next->completion_type == GEN_MAGIC_NEXT) {
-                js_async_generator_resolve(ctx, s, JS_UNDEFINED, TRUE);
-            } else if (next->completion_type == GEN_MAGIC_RETURN) {
-                s->state = JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN;
-                js_async_generator_completed_return(ctx, s, next->result);
-                goto done;
-            } else {
-                js_async_generator_reject(ctx, s, next->result);
-            }
-            goto done;
-        case JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD:
-        case JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR:
-            value = JS_DupValue(ctx, next->result);
-            if (next->completion_type == GEN_MAGIC_THROW &&
-                s->state == JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD) {
-                JS_Throw(ctx, value);
-                s->func_state.throw_flag = TRUE;
-            } else {
-                /* 'yield' returns a value. 'yield *' also returns a value
-                   in case the 'throw' method is called */
-                s->func_state.frame.cur_sp[-1] = value;
-                s->func_state.frame.cur_sp[0] =
-                    JS_NewInt32(ctx, next->completion_type);
-                s->func_state.frame.cur_sp++;
-            exec_no_arg:
-                s->func_state.throw_flag = FALSE;
-            }
-            s->state = JS_ASYNC_GENERATOR_STATE_EXECUTING;
-        resume_exec:
-            func_ret = async_func_resume(ctx, &s->func_state);
-            if (JS_IsException(func_ret)) {
-                value = JS_GetException(ctx);
-                js_async_generator_complete(ctx, s);
-                js_async_generator_reject(ctx, s, value);
-                JS_FreeValue(ctx, value);
-            } else if (JS_VALUE_GET_TAG(func_ret) == JS_TAG_INT) {
-                int func_ret_code;
-                value = s->func_state.frame.cur_sp[-1];
-                s->func_state.frame.cur_sp[-1] = JS_UNDEFINED;
-                func_ret_code = JS_VALUE_GET_INT(func_ret);
-                switch(func_ret_code) {
-                case FUNC_RET_YIELD:
-                case FUNC_RET_YIELD_STAR:
-                    if (func_ret_code == FUNC_RET_YIELD_STAR)
-                        s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR;
-                    else
-                        s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD;
-                    js_async_generator_resolve(ctx, s, value, FALSE);
-                    JS_FreeValue(ctx, value);
-                    break;
-                case FUNC_RET_AWAIT:
-                    js_async_generator_await(ctx, s, value);
-                    JS_FreeValue(ctx, value);
-                    goto done;
-                default:
-                    abort();
-                }
-            } else {
-                assert(JS_IsUndefined(func_ret));
-                /* end of function */
-                value = s->func_state.frame.cur_sp[-1];
-                s->func_state.frame.cur_sp[-1] = JS_UNDEFINED;
-                js_async_generator_complete(ctx, s);
-                js_async_generator_resolve(ctx, s, value, TRUE);
-                JS_FreeValue(ctx, value);
-            }
-            break;
-        default:
-            abort();
-        }
-    }
- done: ;
-}
-
-static JSValue js_async_generator_resolve_function(JSContext *ctx,
-                                                   JSValueConst this_obj,
-                                                   int argc, JSValueConst *argv,
-                                                   int magic, JSValue *func_data)
-{
-    BOOL is_reject = magic & 1;
-    JSAsyncGeneratorData *s = JS_GetOpaque(func_data[0], JS_CLASS_ASYNC_GENERATOR);
-    JSValueConst arg = argv[0];
-
-    /* XXX: what if s == NULL */
-
-    if (magic >= 2) {
-        /* resume next case in AWAITING_RETURN state */
-        assert(s->state == JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN ||
-               s->state == JS_ASYNC_GENERATOR_STATE_COMPLETED);
-        s->state = JS_ASYNC_GENERATOR_STATE_COMPLETED;
-        if (is_reject) {
-            js_async_generator_reject(ctx, s, arg);
-        } else {
-            js_async_generator_resolve(ctx, s, arg, TRUE);
-        }
-    } else {
-        /* restart function execution after await() */
-        assert(s->state == JS_ASYNC_GENERATOR_STATE_EXECUTING);
-        s->func_state.throw_flag = is_reject;
-        if (is_reject) {
-            JS_Throw(ctx, JS_DupValue(ctx, arg));
-        } else {
-            /* return value of await */
-            s->func_state.frame.cur_sp[-1] = JS_DupValue(ctx, arg);
-        }
-        js_async_generator_resume_next(ctx, s);
-    }
-    return JS_UNDEFINED;
-}
-
-/* magic = GEN_MAGIC_x */
-static JSValue js_async_generator_next(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv,
-                                       int magic)
-{
-    JSAsyncGeneratorData *s = JS_GetOpaque(this_val, JS_CLASS_ASYNC_GENERATOR);
-    JSValue promise, resolving_funcs[2];
-    JSAsyncGeneratorRequest *req;
-
-    promise = JS_NewPromiseCapability(ctx, resolving_funcs);
-    if (JS_IsException(promise))
-        return JS_EXCEPTION;
-    if (!s) {
-        JSValue err, res2;
-        JS_ThrowTypeError(ctx, "not an AsyncGenerator object");
-        err = JS_GetException(ctx);
-        res2 = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED,
-                       1, (JSValueConst *)&err);
-        JS_FreeValue(ctx, err);
-        JS_FreeValue(ctx, res2);
-        JS_FreeValue(ctx, resolving_funcs[0]);
-        JS_FreeValue(ctx, resolving_funcs[1]);
-        return promise;
-    }
-    req = js_mallocz(ctx, sizeof(*req));
-    if (!req)
-        goto fail;
-    req->completion_type = magic;
-    req->result = JS_DupValue(ctx, argv[0]);
-    req->promise = JS_DupValue(ctx, promise);
-    req->resolving_funcs[0] = resolving_funcs[0];
-    req->resolving_funcs[1] = resolving_funcs[1];
-    list_add_tail(&req->link, &s->queue);
-    if (s->state != JS_ASYNC_GENERATOR_STATE_EXECUTING) {
-        js_async_generator_resume_next(ctx, s);
-    }
-    return promise;
- fail:
-    JS_FreeValue(ctx, resolving_funcs[0]);
-    JS_FreeValue(ctx, resolving_funcs[1]);
-    JS_FreeValue(ctx, promise);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_async_generator_function_call(JSContext *ctx, JSValueConst func_obj,
-                                                JSValueConst this_obj,
-                                                int argc, JSValueConst *argv)
-{
-    JSValue obj, func_ret;
-    JSAsyncGeneratorData *s;
-
-    s = js_mallocz(ctx, sizeof(*s));
-    if (!s)
-        return JS_EXCEPTION;
-    s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_START;
-    init_list_head(&s->queue);
-    if (async_func_init(ctx, &s->func_state, func_obj, this_obj, argc, argv)) {
-        s->state = JS_ASYNC_GENERATOR_STATE_COMPLETED;
-        goto fail;
-    }
-
-    /* execute the function up to 'OP_initial_yield' (no yield nor
-       await are possible) */
-    func_ret = async_func_resume(ctx, &s->func_state);
-    if (JS_IsException(func_ret))
-        goto fail;
-    JS_FreeValue(ctx, func_ret);
-
-    obj = js_create_from_ctor(ctx, func_obj, JS_CLASS_ASYNC_GENERATOR);
-    if (JS_IsException(obj))
-        goto fail;
-    s->generator = JS_VALUE_GET_OBJ(obj);
-    JS_SetOpaque(obj, s);
-    return obj;
- fail:
-    js_async_generator_free(ctx->rt, s);
-    return JS_EXCEPTION;
-}
-
-/* JS parser */
-
-enum {
-    TOK_NUMBER = -128,
-    TOK_STRING,
-    TOK_TEMPLATE,
-    TOK_IDENT,
-    TOK_REGEXP,
-    /* warning: order matters (see js_parse_assign_expr) */
-    TOK_MUL_ASSIGN,
-    TOK_DIV_ASSIGN,
-    TOK_MOD_ASSIGN,
-    TOK_PLUS_ASSIGN,
-    TOK_MINUS_ASSIGN,
-    TOK_SHL_ASSIGN,
-    TOK_SAR_ASSIGN,
-    TOK_SHR_ASSIGN,
-    TOK_AND_ASSIGN,
-    TOK_XOR_ASSIGN,
-    TOK_OR_ASSIGN,
-#ifdef CONFIG_BIGNUM
-    TOK_MATH_POW_ASSIGN,
-#endif
-    TOK_POW_ASSIGN,
-    TOK_DEC,
-    TOK_INC,
-    TOK_SHL,
-    TOK_SAR,
-    TOK_SHR,
-    TOK_LT,
-    TOK_LTE,
-    TOK_GT,
-    TOK_GTE,
-    TOK_EQ,
-    TOK_STRICT_EQ,
-    TOK_NEQ,
-    TOK_STRICT_NEQ,
-    TOK_LAND,
-    TOK_LOR,
-#ifdef CONFIG_BIGNUM
-    TOK_MATH_POW,
-#endif
-    TOK_POW,
-    TOK_ARROW,
-    TOK_ELLIPSIS,
-    TOK_ERROR,
-    TOK_PRIVATE_NAME,
-    TOK_EOF,
-    /* keywords: WARNING: same order as atoms */
-    TOK_NULL, /* must be first */
-    TOK_FALSE,
-    TOK_TRUE,
-    TOK_IF,
-    TOK_ELSE,
-    TOK_RETURN,
-    TOK_VAR,
-    TOK_THIS,
-    TOK_DELETE,
-    TOK_VOID,
-    TOK_TYPEOF,
-    TOK_NEW,
-    TOK_IN,
-    TOK_INSTANCEOF,
-    TOK_DO,
-    TOK_WHILE,
-    TOK_FOR,
-    TOK_BREAK,
-    TOK_CONTINUE,
-    TOK_SWITCH,
-    TOK_CASE,
-    TOK_DEFAULT,
-    TOK_THROW,
-    TOK_TRY,
-    TOK_CATCH,
-    TOK_FINALLY,
-    TOK_FUNCTION,
-    TOK_DEBUGGER,
-    TOK_WITH,
-    /* FutureReservedWord */
-    TOK_CLASS,
-    TOK_CONST,
-    TOK_ENUM,
-    TOK_EXPORT,
-    TOK_EXTENDS,
-    TOK_IMPORT,
-    TOK_SUPER,
-    /* FutureReservedWords when parsing strict mode code */
-    TOK_IMPLEMENTS,
-    TOK_INTERFACE,
-    TOK_LET,
-    TOK_PACKAGE,
-    TOK_PRIVATE,
-    TOK_PROTECTED,
-    TOK_PUBLIC,
-    TOK_STATIC,
-    TOK_YIELD,
-    TOK_AWAIT, /* must be last */
-    TOK_OF,     /* only used for js_parse_skip_parens_token() */
-};
-
-#define TOK_FIRST_KEYWORD   TOK_NULL
-#define TOK_LAST_KEYWORD    TOK_AWAIT
-
-/* unicode code points */
-#define CP_NBSP 0x00a0
-#define CP_BOM  0xfeff
-
-#define CP_LS   0x2028
-#define CP_PS   0x2029
-
-typedef struct BlockEnv {
-    struct BlockEnv *prev;
-    JSAtom label_name; /* JS_ATOM_NULL if none */
-    int label_break; /* -1 if none */
-    int label_cont; /* -1 if none */
-    int drop_count; /* number of stack elements to drop */
-    int label_finally; /* -1 if none */
-    int scope_level;
-    int has_iterator;
-} BlockEnv;
-
-typedef struct JSHoistedDef {
-    int cpool_idx; /* -1 means variable global definition */
-    uint8_t force_init : 1; /* initialize to undefined */
-    uint8_t is_lexical : 1; /* global let/const definition */
-    uint8_t is_const   : 1; /* const definition */
-    uint8_t is_for_of  : 1; /* variable defined in for-of */
-    int var_idx;   /* function object index if cpool_idx >= 0 */
-    int scope_level;    /* scope of definition */
-    JSAtom var_name;  /* variable name if cpool_idx < 0 */
-} JSHoistedDef;
-
-typedef struct RelocEntry {
-    struct RelocEntry *next;
-    uint32_t addr; /* address to patch */
-    int size;   /* address size: 1, 2 or 4 bytes */
-} RelocEntry;
-
-typedef struct JumpSlot {
-    int op;
-    int size;
-    int pos;
-    int label;
-} JumpSlot;
-
-typedef struct LabelSlot {
-    int ref_count;
-    int pos;    /* phase 1 address, -1 means not resolved yet */
-    int pos2;   /* phase 2 address, -1 means not resolved yet */
-    int addr;   /* phase 3 address, -1 means not resolved yet */
-    RelocEntry *first_reloc;
-} LabelSlot;
-
-typedef struct LineNumberSlot {
-    uint32_t pc;
-    int line_num;
-} LineNumberSlot;
-
-typedef enum JSParseFunctionEnum {
-    JS_PARSE_FUNC_STATEMENT,
-    JS_PARSE_FUNC_VAR,
-    JS_PARSE_FUNC_EXPR,
-    JS_PARSE_FUNC_ARROW,
-    JS_PARSE_FUNC_GETTER,
-    JS_PARSE_FUNC_SETTER,
-    JS_PARSE_FUNC_METHOD,
-    JS_PARSE_FUNC_CLASS_CONSTRUCTOR,
-    JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR,
-} JSParseFunctionEnum;
-
-typedef enum JSParseExportEnum {
-    JS_PARSE_EXPORT_NONE,
-    JS_PARSE_EXPORT_NAMED,
-    JS_PARSE_EXPORT_DEFAULT,
-} JSParseExportEnum;
-
-typedef struct JSFunctionDef {
-    JSContext *ctx;
-    struct JSFunctionDef *parent;
-    int parent_cpool_idx; /* index in the constant pool of the parent
-                             or -1 if none */
-    int parent_scope_level; /* scope level in parent at point of definition */
-    struct list_head child_list; /* list of JSFunctionDef.link */
-    struct list_head link;
-
-    BOOL is_eval; /* TRUE if eval code */
-    int eval_type; /* only valid if is_eval = TRUE */
-    BOOL is_global_var; /* TRUE if variables are not defined locally:
-                           eval global, eval module or non strict eval */
-    BOOL is_func_expr; /* TRUE if function expression */
-    BOOL has_home_object; /* TRUE if the home object is available */
-    BOOL has_prototype; /* true if a prototype field is necessary */
-    BOOL has_simple_parameter_list;
-    BOOL has_use_strict; /* to reject directive in special cases */
-    BOOL has_eval_call; /* true if the function contains a call to eval() */
-    BOOL has_arguments_binding; /* true if the 'arguments' binding is
-                                   available in the function */
-    BOOL has_this_binding; /* true if the 'this' and new.target binding are
-                              available in the function */
-    BOOL new_target_allowed; /* true if the 'new.target' does not
-                                throw a syntax error */
-    BOOL super_call_allowed; /* true if super() is allowed */
-    BOOL super_allowed; /* true if super. or super[] is allowed */
-    BOOL arguments_allowed; /* true if the 'arguments' identifier is allowed */
-    BOOL is_derived_class_constructor;
-    BOOL in_function_body;
-    JSFunctionKindEnum func_kind : 8;
-    JSParseFunctionEnum func_type : 8;
-    uint8_t js_mode; /* bitmap of JS_MODE_x */
-    JSAtom func_name; /* JS_ATOM_NULL if no name */
-
-    JSVarDef *vars;
-    int var_size; /* allocated size for vars[] */
-    int var_count;
-    JSVarDef *args;
-    int arg_size; /* allocated size for args[] */
-    int arg_count; /* number of arguments */
-    int defined_arg_count;
-    int var_object_idx; /* -1 if none */
-    int arguments_var_idx; /* -1 if none */
-    int func_var_idx; /* variable containing the current function (-1
-                         if none, only used if is_func_expr is true) */
-    int eval_ret_idx; /* variable containing the return value of the eval, -1 if none */
-    int this_var_idx; /* variable containg the 'this' value, -1 if none */
-    int new_target_var_idx; /* variable containg the 'new.target' value, -1 if none */
-    int this_active_func_var_idx; /* variable containg the 'this.active_func' value, -1 if none */
-    int home_object_var_idx;
-    BOOL need_home_object;
-    
-    int scope_level;    /* index into fd->scopes if the current lexical scope */
-    int scope_first;    /* index into vd->vars of first lexically scoped variable */
-    int scope_size;     /* allocated size of fd->scopes array */
-    int scope_count;    /* number of entries used in the fd->scopes array */
-    JSVarScope *scopes;
-    JSVarScope def_scope_array[4];
-
-    int hoisted_def_count;
-    int hoisted_def_size;
-    JSHoistedDef *hoisted_def;
-
-    DynBuf byte_code;
-    int last_opcode_pos; /* -1 if no last opcode */
-    int last_opcode_line_num;
-    BOOL use_short_opcodes; /* true if short opcodes are used in byte_code */
-    
-    LabelSlot *label_slots;
-    int label_size; /* allocated size for label_slots[] */
-    int label_count;
-    BlockEnv *top_break; /* break/continue label stack */
-
-    /* constant pool (strings, functions, numbers) */
-    JSValue *cpool;
-    uint32_t cpool_count;
-    uint32_t cpool_size;
-
-    /* list of variables in the closure */
-    int closure_var_count;
-    int closure_var_size;
-    JSClosureVar *closure_var;
-
-    JumpSlot *jump_slots;
-    int jump_size;
-    int jump_count;
-
-    LineNumberSlot *line_number_slots;
-    int line_number_size;
-    int line_number_count;
-    int line_number_last;
-    int line_number_last_pc;
-
-    /* pc2line table */
-    JSAtom filename;
-    int line_num;
-    DynBuf pc2line;
-
-    char *source;  /* raw source, utf-8 encoded */
-    int source_len;
-
-    JSModuleDef *module; /* != NULL when parsing a module */
-} JSFunctionDef;
-
-typedef struct JSToken {
-    int val;
-    int line_num;   /* line number of token start */
-    const uint8_t *ptr;
-    union {
-        struct {
-            JSValue str;
-            int sep;
-        } str;
-        struct {
-            JSValue val;
-#ifdef CONFIG_BIGNUM
-            slimb_t exponent; /* may be != 0 only if val is a float */
-#endif
-        } num;
-        struct {
-            JSAtom atom;
-            BOOL has_escape;
-            BOOL is_reserved;
-        } ident;
-        struct {
-            JSValue body;
-            JSValue flags;
-        } regexp;
-    } u;
-} JSToken;
-
-typedef struct JSParseState {
-    JSContext *ctx;
-    int last_line_num;  /* line number of last token */
-    int line_num;       /* line number of current offset */
-    const char *filename;
-    JSToken token;
-    BOOL got_lf; /* true if got line feed before the current token */
-    const uint8_t *last_ptr;
-    const uint8_t *buf_ptr;
-    const uint8_t *buf_end;
-
-    /* current function code */
-    JSFunctionDef *cur_func;
-    BOOL is_module; /* parsing a module */
-    BOOL allow_html_comments;
-} JSParseState;
-
-typedef struct JSOpCode {
-#ifdef DUMP_BYTECODE
-    const char *name;
-#endif
-    uint8_t size; /* in bytes */
-    /* the opcodes remove n_pop items from the top of the stack, then
-       pushes n_push items */
-    uint8_t n_pop;
-    uint8_t n_push;
-    uint8_t fmt;
-} JSOpCode;
-
-static const JSOpCode opcode_info[OP_COUNT + (OP_TEMP_END - OP_TEMP_START)] = {
-#define FMT(f)
-#ifdef DUMP_BYTECODE
-#define DEF(id, size, n_pop, n_push, f) { #id, size, n_pop, n_push, OP_FMT_ ## f },
-#else
-#define DEF(id, size, n_pop, n_push, f) { size, n_pop, n_push, OP_FMT_ ## f },
-#endif
-#include "quickjs-opcode.h"
-#undef DEF
-#undef FMT
-};
-
-#if SHORT_OPCODES
-/* After the final compilation pass, short opcodes are used. Their
-   opcodes overlap with the temporary opcodes which cannot appear in
-   the final bytecode. Their description is after the temporary
-   opcodes in opcode_info[]. */
-#define short_opcode_info(op)           \
-    opcode_info[(op) >= OP_TEMP_START ? \
-                (op) + (OP_TEMP_END - OP_TEMP_START) : (op)]
-#else
-#define short_opcode_info(op) opcode_info[op]
-#endif
-
-static __exception int next_token(JSParseState *s);
-
-static void free_token(JSParseState *s, JSToken *token)
-{
-    switch(token->val) {
-#ifdef CONFIG_BIGNUM
-    case TOK_NUMBER:
-        JS_FreeValue(s->ctx, token->u.num.val);
-        break;
-#endif
-    case TOK_STRING:
-    case TOK_TEMPLATE:
-        JS_FreeValue(s->ctx, token->u.str.str);
-        break;
-    case TOK_REGEXP:
-        JS_FreeValue(s->ctx, token->u.regexp.body);
-        JS_FreeValue(s->ctx, token->u.regexp.flags);
-        break;
-    case TOK_IDENT:
-    case TOK_FIRST_KEYWORD ... TOK_LAST_KEYWORD:
-    case TOK_PRIVATE_NAME:
-        JS_FreeAtom(s->ctx, token->u.ident.atom);
-        break;
-    default:
-        break;
-    }
-}
-
-static void __attribute((unused)) dump_token(JSParseState *s,
-                                             const JSToken *token)
-{
-    switch(token->val) {
-    case TOK_NUMBER:
-        {
-            double d;
-            JS_ToFloat64(s->ctx, &d, token->u.num.val);  /* no exception possible */
-            printf("number: %.14g\n", d);
-        }
-        break;
-    case TOK_IDENT:
-    dump_atom:
-        {
-            char buf[ATOM_GET_STR_BUF_SIZE];
-            printf("ident: '%s'\n",
-                   JS_AtomGetStr(s->ctx, buf, sizeof(buf), token->u.ident.atom));
-        }
-        break;
-    case TOK_STRING:
-        {
-            const char *str;
-            /* XXX: quote the string */
-            str = JS_ToCString(s->ctx, token->u.str.str);
-            printf("string: '%s'\n", str);
-            JS_FreeCString(s->ctx, str);
-        }
-        break;
-    case TOK_TEMPLATE:
-        {
-            const char *str;
-            str = JS_ToCString(s->ctx, token->u.str.str);
-            printf("template: `%s`\n", str);
-            JS_FreeCString(s->ctx, str);
-        }
-        break;
-    case TOK_REGEXP:
-        {
-            const char *str, *str2;
-            str = JS_ToCString(s->ctx, token->u.regexp.body);
-            str2 = JS_ToCString(s->ctx, token->u.regexp.flags);
-            printf("regexp: '%s' '%s'\n", str, str2);
-            JS_FreeCString(s->ctx, str);
-            JS_FreeCString(s->ctx, str2);
-        }
-        break;
-    case TOK_EOF:
-        printf("eof\n");
-        break;
-    default:
-        if (s->token.val >= TOK_NULL && s->token.val <= TOK_LAST_KEYWORD) {
-            goto dump_atom;
-        } else if (s->token.val >= 256) {
-            printf("token: %d\n", token->val);
-        } else {
-            printf("token: '%c'\n", token->val);
-        }
-        break;
-    }
-}
-
-int __attribute__((format(printf, 2, 3))) js_parse_error(JSParseState *s, const char *fmt, ...)
-{
-    JSContext *ctx = s->ctx;
-    va_list ap;
-
-    va_start(ap, fmt);
-    JS_ThrowError(ctx, JS_SYNTAX_ERROR, fmt, ap);
-    va_end(ap);
-
-    build_backtrace(ctx, ctx->current_exception, s->filename, s->line_num, NULL);
-    return -1;
-}
-
-static int js_parse_expect(JSParseState *s, int tok)
-{
-    if (s->token.val != tok) {
-        /* XXX: dump token correctly in all cases */
-        return js_parse_error(s, "expecting '%c'", tok);
-    }
-    return next_token(s);
-}
-
-static int js_parse_expect_semi(JSParseState *s)
-{
-    if (s->token.val != ';') {
-        /* automatic insertion of ';' */
-        if (s->token.val == TOK_EOF || s->token.val == '}' || s->got_lf) {
-            return 0;
-        }
-        return js_parse_error(s, "expecting '%c'", ';');
-    }
-    return next_token(s);
-}
-
-static int js_parse_error_reserved_identifier(JSParseState *s)
-{
-    char buf1[ATOM_GET_STR_BUF_SIZE];
-    return js_parse_error(s, "'%s' is a reserved identifier",
-                          JS_AtomGetStr(s->ctx, buf1, sizeof(buf1),
-                                        s->token.u.ident.atom));
-}
-
-static __exception int js_parse_template_part(JSParseState *s, const uint8_t *p)
-{
-    uint32_t c;
-    StringBuffer b_s, *b = &b_s;
-
-    /* p points to the first byte of the template part */
-    if (string_buffer_init(s->ctx, b, 32))
-        goto fail;
-    for(;;) {
-        if (p >= s->buf_end)
-            goto unexpected_eof;
-        c = *p++;
-        if (c == '`') {
-            /* template end part */
-            break;
-        }
-        if (c == '$' && *p == '{') {
-            /* template start or middle part */
-            p++;
-            break;
-        }
-        if (c == '\\') {
-            if (string_buffer_putc8(b, c))
-                goto fail;
-            if (p >= s->buf_end)
-                goto unexpected_eof;
-            c = *p++;
-        }
-        /* newline sequences are normalized as single '\n' bytes */
-        if (c == '\r') {
-            if (*p == '\n')
-                p++;
-            c = '\n';
-        }
-        if (c == '\n') {
-            s->line_num++;
-        } else if (c >= 0x80) {
-            const uint8_t *p_next;
-            c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next);
-            if (c > 0x10FFFF) {
-                js_parse_error(s, "invalid UTF-8 sequence");
-                goto fail;
-            }
-            p = p_next;
-        }
-        if (string_buffer_putc(b, c))
-            goto fail;
-    }
-    s->token.val = TOK_TEMPLATE;
-    s->token.u.str.sep = c;
-    s->token.u.str.str = string_buffer_end(b);
-    s->buf_ptr = p;
-    return 0;
-
- unexpected_eof:
-    js_parse_error(s, "unexpected end of string");
- fail:
-    string_buffer_free(b);
-    return -1;
-}
-
-static __exception int js_parse_string(JSParseState *s, int sep,
-                                       BOOL do_throw, const uint8_t *p,
-                                       JSToken *token, const uint8_t **pp)
-{
-    int ret;
-    uint32_t c;
-    StringBuffer b_s, *b = &b_s;
-
-    /* string */
-    if (string_buffer_init(s->ctx, b, 32))
-        goto fail;
-    for(;;) {
-        if (p >= s->buf_end)
-            goto invalid_char;
-        c = *p;
-        if (c < 0x20) {
-            if (!s->cur_func) {
-                if (do_throw)
-                    js_parse_error(s, "invalid character in a JSON string");
-                goto fail;
-            }
-            if (sep == '`') {
-                if (c == '\r') {
-                    if (p[1] == '\n')
-                        p++;
-                    c = '\n';
-                }
-                /* do not update s->line_num */
-            } else if (c == '\n' || c == '\r')
-                goto invalid_char;
-        }
-        p++;
-        if (c == sep)
-            break;
-        if (c == '$' && *p == '{' && sep == '`') {
-            /* template start or middle part */
-            p++;
-            break;
-        }
-        if (c == '\\') {
-            c = *p;
-            switch(c) {
-            case '\0':
-                if (p >= s->buf_end)
-                    goto invalid_char;
-                p++;
-                break;
-            case '\'':
-            case '\"':
-            case '\\':
-                p++;
-                break;
-            case '\r':  /* accept DOS and MAC newline sequences */
-                if (p[1] == '\n') {
-                    p++;
-                }
-                /* fall thru */
-            case '\n':
-                /* ignore escaped newline sequence */
-                p++;
-                if (sep != '`')
-                    s->line_num++;
-                continue;
-            default:
-                if (c >= '0' && c <= '7') {
-                    if (!s->cur_func)
-                        goto invalid_octal; /* JSON case */
-                    if (!(s->cur_func->js_mode & JS_MODE_STRICT) && sep != '`')
-                        goto parse_escape;
-                    if (c == '0' && !(p[1] >= '0' && p[1] <= '9')) {
-                        p++;
-                        c = '\0';
-                    } else {
-                    invalid_octal:
-                        if (do_throw)
-                            js_parse_error(s, "invalid octal syntax in strict mode");
-                        goto fail;
-                    }
-                } else if (c >= 0x80) {
-                    const uint8_t *p_next;
-                    c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next);
-                    if (c > 0x10FFFF) {
-                        goto invalid_utf8;
-                    }
-                    p = p_next;
-                    /* LS or PS are skipped */
-                    if (c == CP_LS || c == CP_PS)
-                        continue;
-                } else {
-                parse_escape:
-                    ret = lre_parse_escape(&p, TRUE);
-                    if (ret == -1) {
-                        if (do_throw)
-                            js_parse_error(s, "malformed escape sequence in string literal");
-                        goto fail;
-                    } else if (ret < 0) {
-                        /* ignore the '\' (could output a warning) */
-                        p++;
-                    } else {
-                        c = ret;
-                    }
-                }
-                break;
-            }
-        } else if (c >= 0x80) {
-            const uint8_t *p_next;
-            c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next);
-            if (c > 0x10FFFF)
-                goto invalid_utf8;
-            p = p_next;
-        }
-        if (string_buffer_putc(b, c))
-            goto fail;
-    }
-    token->val = TOK_STRING;
-    token->u.str.sep = c;
-    token->u.str.str = string_buffer_end(b);
-    *pp = p;
-    return 0;
-
- invalid_utf8:
-    if (do_throw)
-        js_parse_error(s, "invalid UTF-8 sequence");
-    goto fail;
- invalid_char:
-    if (do_throw)
-        js_parse_error(s, "unexpected end of string");
- fail:
-    string_buffer_free(b);
-    return -1;
-}
-
-static inline BOOL token_is_pseudo_keyword(JSParseState *s, JSAtom atom) {
-    return s->token.val == TOK_IDENT && s->token.u.ident.atom == atom &&
-        !s->token.u.ident.has_escape;
-}
-
-#if 0
-/* return TRUE if a regexp literal is allowed after this token */
-static BOOL is_regexp_allowed(JSParseState *s)
-{
-    switch (s->token.val) {
-    case TOK_NUMBER:
-    case TOK_STRING:
-    case TOK_REGEXP:
-    case TOK_DEC:
-    case TOK_INC:
-    case TOK_NULL:
-    case TOK_FALSE:
-    case TOK_TRUE:
-    case TOK_THIS:
-    case ')':
-    case ']':
-    case '}':
-        return FALSE;
-    case TOK_IDENT:
-        return token_is_pseudo_keyword(s, JS_ATOM_of) || token_is_pseudo_keyword(s, JS_ATOM_yield);
-    default:
-        return TRUE;
-    }
-}
-#endif
-
-static __exception int js_parse_regexp(JSParseState *s)
-{
-    const uint8_t *p;
-    BOOL in_class;
-    StringBuffer b_s, *b = &b_s;
-    StringBuffer b2_s, *b2 = &b2_s;
-    uint32_t c;
-
-    p = s->buf_ptr;
-    p++;
-    in_class = FALSE;
-    if (string_buffer_init(s->ctx, b, 32))
-        return -1;
-    if (string_buffer_init(s->ctx, b2, 1))
-        goto fail;
-    for(;;) {
-        if (p >= s->buf_end) {
-        eof_error:
-            js_parse_error(s, "unexpected end of regexp");
-            goto fail;
-        }
-        c = *p++;
-        if (c == '\n' || c == '\r') {
-            goto eol_error;
-        } else if (c == '/') {
-            if (!in_class)
-                break;
-        } else if (c == '[') {
-            in_class = TRUE;
-        } else if (c == ']') {
-            /* XXX: incorrect as the first character in a class */
-            in_class = FALSE;
-        } else if (c == '\\') {
-            if (string_buffer_putc8(b, c))
-                goto fail;
-            c = *p++;
-            if (c == '\n' || c == '\r')
-                goto eol_error;
-            else if (c == '\0' && p >= s->buf_end)
-                goto eof_error;
-            else if (c >= 0x80) {
-                const uint8_t *p_next;
-                c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next);
-                if (c > 0x10FFFF) {
-                    goto invalid_utf8;
-                }
-                p = p_next;
-                if (c == CP_LS || c == CP_PS)
-                    goto eol_error;
-            }
-        } else if (c >= 0x80) {
-            const uint8_t *p_next;
-            c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next);
-            if (c > 0x10FFFF) {
-            invalid_utf8:
-                js_parse_error(s, "invalid UTF-8 sequence");
-                goto fail;
-            }
-            p = p_next;
-            /* LS or PS are considered as line terminator */
-            if (c == CP_LS || c == CP_PS) {
-            eol_error:
-                js_parse_error(s, "unexpected line terminator in regexp");
-                goto fail;
-            }
-        }
-        if (string_buffer_putc(b, c))
-            goto fail;
-    }
-
-    /* flags */
-    for(;;) {
-        const uint8_t *p_next = p;
-        c = *p_next++;
-        if (c >= 0x80) {
-            c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next);
-            if (c > 0x10FFFF) {
-                goto invalid_utf8;
-            }
-        }
-        if (!lre_js_is_ident_next(c))
-            break;
-        if (string_buffer_putc(b2, c))
-            goto fail;
-        p = p_next;
-    }
-
-    s->token.val = TOK_REGEXP;
-    s->token.u.regexp.body = string_buffer_end(b);
-    s->token.u.regexp.flags = string_buffer_end(b2);
-    s->buf_ptr = p;
-    return 0;
- fail:
-    string_buffer_free(b);
-    string_buffer_free(b2);
-    return -1;
-}
-
-static __exception int next_token(JSParseState *s)
-{
-    const uint8_t *p;
-    int c;
-    char buf[4096], *q;
-    BOOL ident_has_escape;
-
-    free_token(s, &s->token);
-
-    p = s->last_ptr = s->buf_ptr;
-    s->got_lf = FALSE;
-    s->last_line_num = s->token.line_num;
- redo:
-    s->token.line_num = s->line_num;
-    s->token.ptr = p;
-    c = *p;
-    switch(c) {
-    case 0:
-        s->token.val = TOK_EOF;
-        break;
-    case '`':
-        if (!s->cur_func) {
-            /* JSON does not accept templates */
-            goto def_token;
-        }
-        if (js_parse_template_part(s, p + 1))
-            goto fail;
-        p = s->buf_ptr;
-        break;
-    case '\'':
-        if (!s->cur_func) {
-            /* JSON does not accept single quoted strings */
-            goto def_token;
-        }
-        /* fall through */
-    case '\"':
-        if (js_parse_string(s, c, TRUE, p + 1, &s->token, &p))
-            goto fail;
-        break;
-    case '\r':  /* accept DOS and MAC newline sequences */
-        if (p[1] == '\n') {
-            p++;
-        }
-        /* fall thru */
-    case '\n':
-        p++;
-    line_terminator:
-        s->got_lf = TRUE;
-        s->line_num++;
-        goto redo;
-    case '\f':
-    case '\v':
-        if (!s->cur_func) {
-            /* JSONWhitespace does not match <VT>, nor <FF> */
-            goto def_token;
-        }
-        /* fall through */
-    case ' ':
-    case '\t':
-        p++;
-        goto redo;
-    case '/':
-        if (p[1] == '*') {
-            /* comment */
-            p += 2;
-            for(;;) {
-                if (*p == '\0' && p >= s->buf_end) {
-                    js_parse_error(s, "unexpected end of comment");
-                    goto fail;
-                }
-                if (p[0] == '*' && p[1] == '/') {
-                    p += 2;
-                    break;
-                }
-                if (*p == '\n') {
-                    s->line_num++;
-                    s->got_lf = TRUE; /* considered as LF for ASI */
-                    p++;
-                } else if (*p == '\r') {
-                    s->got_lf = TRUE; /* considered as LF for ASI */
-                    p++;
-                } else if (*p >= 0x80) {
-                    c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
-                    if (c == CP_LS || c == CP_PS) {
-                        s->got_lf = TRUE; /* considered as LF for ASI */
-                    }
-                } else {
-                    p++;
-                }
-            }
-            goto redo;
-        } else if (p[1] == '/') {
-            /* line comment */
-            p += 2;
-        skip_line_comment:
-            for(;;) {
-                if (*p == '\0' && p >= s->buf_end)
-                    break;
-                if (*p == '\r' || *p == '\n')
-                    break;
-                if (*p >= 0x80) {
-                    c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
-                    /* LS or PS are considered as line terminator */
-                    if (c == CP_LS || c == CP_PS)
-                        break;
-                } else {
-                    p++;
-                }
-            }
-            goto redo;
-        }
-#if 0
-        else if (is_regexp_allowed(s)) {
-            s->buf_ptr = p;
-            if (js_parse_regexp(s))
-                goto fail;
-            p = s->buf_ptr;
-        }
-#endif
-        else if (p[1] == '=') {
-            p += 2;
-            s->token.val = TOK_DIV_ASSIGN;
-        } else {
-            p++;
-            s->token.val = c;
-        }
-        break;
-    case '\\':
-        if (p[1] == 'u') {
-            const uint8_t *p1 = p + 1;
-            int c1 = lre_parse_escape(&p1, TRUE);
-            if (c1 >= 0 && lre_js_is_ident_first(c1)) {
-                c = c1;
-                p = p1;
-                ident_has_escape = TRUE;
-                goto has_ident;
-            } else {
-                /* XXX: syntax error? */
-            }
-        }
-        goto def_token;
-    case 'a' ... 'z':
-    case 'A' ... 'Z':
-    case '_':
-    case '$':
-        /* identifier */
-        p++;
-        ident_has_escape = FALSE;
-    has_ident:
-        q = buf;
-        for(;;) {
-            const uint8_t *p1 = p;
-
-            if (c < 128) {
-                *q++ = c;
-            } else {
-                q += unicode_to_utf8((uint8_t*)q, c);
-            }
-            c = *p1++;
-            if (c == '\\' && *p1 == 'u') {
-                c = lre_parse_escape(&p1, TRUE);
-                ident_has_escape = TRUE;
-            } else if (c >= 128) {
-                c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1);
-            }
-            /* XXX: check if c >= 0 and c <= 0x10FFFF */
-            if (!lre_js_is_ident_next(c))
-                break;
-            p = p1;
-            if ((q - buf) >= sizeof(buf) - UTF8_CHAR_LEN_MAX) {
-                js_parse_error(s, "identifier too long");
-                goto fail;
-            }
-        }
-        *q = '\0';
-        s->token.u.ident.atom = JS_NewAtomLen(s->ctx, buf, q - buf);
-        s->token.u.ident.has_escape = ident_has_escape;
-        s->token.u.ident.is_reserved = FALSE;
-        if (s->token.u.ident.atom <= JS_ATOM_LAST_KEYWORD ||
-            (s->token.u.ident.atom <= JS_ATOM_LAST_STRICT_KEYWORD &&
-             s->cur_func && (s->cur_func->js_mode & JS_MODE_STRICT)) ||
-            (s->token.u.ident.atom == JS_ATOM_yield && s->cur_func &&
-             ((s->cur_func->func_kind & JS_FUNC_GENERATOR) ||
-              (s->cur_func->func_type == JS_PARSE_FUNC_ARROW &&
-               !s->cur_func->in_function_body && s->cur_func->parent &&
-               (s->cur_func->parent->func_kind & JS_FUNC_GENERATOR)))) ||
-            (s->token.u.ident.atom == JS_ATOM_await &&
-             (s->is_module ||
-              (s->cur_func &&
-               ((s->cur_func->func_kind & JS_FUNC_ASYNC) ||
-                (s->cur_func->func_type == JS_PARSE_FUNC_ARROW &&
-                 !s->cur_func->in_function_body && s->cur_func->parent &&
-                 (s->cur_func->parent->func_kind & JS_FUNC_ASYNC))))))) {
-                  if (ident_has_escape) {
-                      s->token.u.ident.is_reserved = TRUE;
-                      s->token.val = TOK_IDENT;
-                  } else {
-                      /* The keywords atoms are pre allocated */
-                      s->token.val = s->token.u.ident.atom - 1 + TOK_FIRST_KEYWORD;
-                  }
-        } else {
-            s->token.val = TOK_IDENT;
-        }
-        break;
-    case '#':
-        /* private name */
-        {
-            const uint8_t *p1;
-            p++;
-            q = buf;
-            *q++ = '#';
-            p1 = p;
-            c = *p1++;
-            if (c == '\\' && *p1 == 'u') {
-                c = lre_parse_escape(&p1, TRUE);
-            } else if (c >= 128) {
-                c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1);
-            }
-            if (!lre_js_is_ident_first(c)) {
-                js_parse_error(s, "invalid first character of private name");
-                goto fail;
-            }
-            p = p1;
-            for(;;) {
-                if (c < 128) {
-                    *q++ = c;
-                } else {
-                    q += unicode_to_utf8((uint8_t*)q, c);
-                }
-                p1 = p;
-                c = *p1++;
-                if (c == '\\' && *p1 == 'u') {
-                    c = lre_parse_escape(&p1, TRUE);
-                    ident_has_escape = TRUE;
-                } else if (c >= 128) {
-                    c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1);
-                }
-                /* XXX: check if c >= 0 and c <= 0x10FFFF */
-                if (!lre_js_is_ident_next(c))
-                    break;
-                p = p1;
-                if ((q - buf) >= sizeof(buf) - UTF8_CHAR_LEN_MAX) {
-                    js_parse_error(s, "private name too long");
-                    goto fail;
-                }
-            }
-            *q = '\0';
-            s->token.u.ident.atom = JS_NewAtomLen(s->ctx, buf, q - buf);
-            s->token.val = TOK_PRIVATE_NAME;
-        }
-        break;
-    case '.':
-        if (p[1] == '.' && p[2] == '.') {
-            p += 3;
-            s->token.val = TOK_ELLIPSIS;
-            break;
-        }
-        if (p[1] >= '0' && p[1] <= '9') {
-            goto parse_number;
-        } else {
-            goto def_token;
-        }
-        break;
-    case '0':
-        /* in strict or JSON parsing mode, octal literals are not accepted */
-        if (is_digit(p[1]) && (!s->cur_func ||
-                               (s->cur_func->js_mode & JS_MODE_STRICT))) {
-            js_parse_error(s, "octal literals are deprecated in strict mode");
-            goto fail;
-        }
-        goto parse_number;
-    case '1' ... '9':
-        /* number */
-    parse_number:
-#ifdef CONFIG_BIGNUM
-        {
-            const uint8_t *p1;
-            int flags;
-            slimb_t exponent;
-            JSValue val;
-
-            s->token.val = TOK_NUMBER;
-            s->token.u.num.val = JS_UNDEFINED;
-            s->token.u.num.exponent = 0;
-            if (!s->cur_func) {
-                /* JSON: use current float precision */
-                flags = BF_ATOF_THROW;
-                if (is_bignum_mode(s->ctx))
-                    flags |= BF_ATOF_INT_PREC_INF;
-                else
-                    flags |= BF_ATOF_FLOAT64;
-                val = js_atof(s->ctx, (const char *)p, (const char **)&p,
-                              10, flags);
-                if (JS_IsException(val))
-                    goto bad_number;
-            } else {
-                bf_t r_s, *r = &r_s;
-                BOOL bigint_mode, is_bigint, is_bigfloat;
-                int res;
-
-                bigint_mode = (s->cur_func->js_mode & JS_MODE_BIGINT) != 0;
-                flags = BF_ATOF_BIN_OCT | BF_ATOF_LEGACY_OCTAL |
-                    BF_ATOF_UNDERSCORE_SEP | BF_ATOF_INT_PREC_INF | BF_RNDZ;
-                if (!bigint_mode)
-                    flags |= BF_ATOF_ONLY_DEC_FLOAT;
-                p += skip_spaces((char *)p);
-                bf_init(s->ctx->bf_ctx, r);
-                res = bf_atof2(r, &exponent, (const char *)p,
-                               (const char **)&p, 0, BF_PREC_INF, flags);
-                if (bf_is_nan(r)) {
-                    bf_delete(r);
-                    goto bad_number;
-                }
-                is_bigint = FALSE;
-                is_bigfloat = FALSE;
-                if (*p == 'n') {
-                    if (!(res & BF_ATOF_ST_INTEGER) ||
-                        (res & BF_ATOF_ST_LEGACY_OCTAL)) {
-                        bf_delete(r);
-                        goto bad_number;
-                    }
-                    p++;
-                    is_bigint = TRUE;
-                } else if (*p == 'l') {
-                    p++;
-                    is_bigfloat = TRUE;
-                }
-                if ((res & BF_ATOF_ST_INTEGER) && !is_bigfloat &&
-                    (bigint_mode || is_bigint)) {
-                    /* in bigint mode: small integer or bigint
-                       in legacy mode: always a bigint */
-                    val = JS_NewBigInt2(s->ctx, r, bigint_mode ^ 1);
-                } else {
-                    /* `n` suffix is implied in math mode */
-                    if (s->cur_func->js_mode & JS_MODE_MATH)
-                        is_bigfloat = TRUE;
-                    if (is_bigfloat) {
-                        /* infinite precision */
-                        val = JS_NewBigFloat(s->ctx, r);
-                        s->token.u.num.exponent = exponent;
-                    } else {
-                        double d;
-                        d = bf_mul_pow10_to_float64(s->ctx, r, exponent);
-                        bf_delete(r);
-                        val = JS_NewFloat64(s->ctx, d);
-                    }
-                }
-            }
-            s->token.u.num.val = val;
-            if (lre_js_is_ident_next(unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1))) {
-            bad_number:
-                js_parse_error(s, "invalid number literal");
-                goto fail;
-            }
-        }
-#else
-        {
-            JSValue ret;
-            const uint8_t *p1;
-            int flags, radix;
-            if (!s->cur_func) {
-                flags = ATOD_THROW;
-                radix = 10;
-            } else {
-                flags = ATOD_ACCEPT_BIN_OCT | ATOD_THROW | ATOD_ACCEPT_LEGACY_OCTAL |
-                    ATOD_ACCEPT_UNDERSCORES;
-                radix = 0;
-            }
-            ret = js_atod(s->ctx, (const char *)p, (const char **)&p, radix,
-                          flags);
-            /* reject `10instanceof Number` */
-            if (JS_IsException(ret) ||
-                lre_js_is_ident_next(unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1))) {
-                js_parse_error(s, "invalid number literal");
-                goto fail;
-            }
-            s->token.val = TOK_NUMBER;
-            s->token.u.num.val = ret;
-        }
-#endif
-        break;
-    case '*':
-        if (p[1] == '=') {
-            p += 2;
-            s->token.val = TOK_MUL_ASSIGN;
-        } else if (p[1] == '*') {
-            if (p[2] == '=') {
-                p += 3;
-                s->token.val = TOK_POW_ASSIGN;
-            } else {
-                p += 2;
-                s->token.val = TOK_POW;
-            }
-        } else {
-            goto def_token;
-        }
-        break;
-    case '%':
-        if (p[1] == '=') {
-            p += 2;
-            s->token.val = TOK_MOD_ASSIGN;
-        } else {
-            goto def_token;
-        }
-        break;
-    case '+':
-        if (p[1] == '=') {
-            p += 2;
-            s->token.val = TOK_PLUS_ASSIGN;
-        } else if (p[1] == '+') {
-            p += 2;
-            s->token.val = TOK_INC;
-        } else {
-            goto def_token;
-        }
-        break;
-    case '-':
-        if (p[1] == '=') {
-            p += 2;
-            s->token.val = TOK_MINUS_ASSIGN;
-        } else if (p[1] == '-') {
-            if (s->allow_html_comments &&
-                p[2] == '>' && s->last_line_num != s->line_num) {
-                /* Annex B: `-->` at beginning of line is an html comment end.
-                   It extends to the end of the line.
-                 */
-                goto skip_line_comment;
-            }
-            p += 2;
-            s->token.val = TOK_DEC;
-        } else {
-            goto def_token;
-        }
-        break;
-    case '<':
-        if (p[1] == '=') {
-            p += 2;
-            s->token.val = TOK_LTE;
-        } else if (p[1] == '<') {
-            if (p[2] == '=') {
-                p += 3;
-                s->token.val = TOK_SHL_ASSIGN;
-            } else {
-                p += 2;
-                s->token.val = TOK_SHL;
-            }
-        } else if (s->allow_html_comments &&
-                   p[1] == '!' && p[2] == '-' && p[3] == '-') {
-            /* Annex B: handle `<!--` single line html comments */
-            goto skip_line_comment;
-        } else {
-            goto def_token;
-        }
-        break;
-    case '>':
-        if (p[1] == '=') {
-            p += 2;
-            s->token.val = TOK_GTE;
-        } else if (p[1] == '>') {
-            if (p[2] == '>') {
-                if (p[3] == '=') {
-                    p += 4;
-                    s->token.val = TOK_SHR_ASSIGN;
-                } else {
-                    p += 3;
-                    s->token.val = TOK_SHR;
-                }
-            } else if (p[2] == '=') {
-                p += 3;
-                s->token.val = TOK_SAR_ASSIGN;
-            } else {
-                p += 2;
-                s->token.val = TOK_SAR;
-            }
-        } else {
-            goto def_token;
-        }
-        break;
-    case '=':
-        if (p[1] == '=') {
-            if (p[2] == '=') {
-                p += 3;
-                s->token.val = TOK_STRICT_EQ;
-            } else {
-                p += 2;
-                s->token.val = TOK_EQ;
-            }
-        } else if (p[1] == '>') {
-            p += 2;
-            s->token.val = TOK_ARROW;
-        } else {
-            goto def_token;
-        }
-        break;
-    case '!':
-        if (p[1] == '=') {
-            if (p[2] == '=') {
-                p += 3;
-                s->token.val = TOK_STRICT_NEQ;
-            } else {
-                p += 2;
-                s->token.val = TOK_NEQ;
-            }
-        } else {
-            goto def_token;
-        }
-        break;
-    case '&':
-        if (p[1] == '=') {
-            p += 2;
-            s->token.val = TOK_AND_ASSIGN;
-        } else if (p[1] == '&') {
-            p += 2;
-            s->token.val = TOK_LAND;
-        } else {
-            goto def_token;
-        }
-        break;
-#ifdef CONFIG_BIGNUM
-        /* in math mode, '^' is the power operator. '^^' is always the
-           xor operator and '**' is always the power operator */
-    case '^':
-        if (p[1] == '=') {
-            p += 2;
-            if (s->cur_func && (s->cur_func->js_mode & JS_MODE_MATH))
-                s->token.val = TOK_MATH_POW_ASSIGN;
-            else
-                s->token.val = TOK_XOR_ASSIGN;
-        } else if (p[1] == '^') {
-            if (p[2] == '=') {
-                p += 3;
-                s->token.val = TOK_XOR_ASSIGN;
-            } else {
-                p += 2;
-                s->token.val = '^';
-            }
-        } else {
-            p++;
-            if (s->cur_func && (s->cur_func->js_mode & JS_MODE_MATH))
-                s->token.val = TOK_MATH_POW;
-            else
-                s->token.val = '^';
-        }
-        break;
-#else
-    case '^':
-        if (p[1] == '=') {
-            p += 2;
-            s->token.val = TOK_XOR_ASSIGN;
-        } else {
-            goto def_token;
-        }
-        break;
-#endif
-    case '|':
-        if (p[1] == '=') {
-            p += 2;
-            s->token.val = TOK_OR_ASSIGN;
-        } else if (p[1] == '|') {
-            p += 2;
-            s->token.val = TOK_LOR;
-        } else {
-            goto def_token;
-        }
-        break;
-    default:
-        if (c >= 128) {
-            /* unicode value */
-            c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
-            switch(c) {
-            case CP_PS:
-            case CP_LS:
-                if (!s->cur_func) {
-                    /* <PS> and <LS> are not JSONWhitespace */
-                    goto def_token;
-                } else {
-                    /* XXX: should avoid incrementing line_number, but
-                       needed to handle HTML comments */
-                    goto line_terminator; 
-                }
-            default:
-                if (lre_is_space(c)) {
-                    if (!s->cur_func) {
-                        /* category z spaces are not JSONWhitespace */
-                        goto def_token;
-                    } else {
-                        goto redo;
-                    }
-                } else if (lre_js_is_ident_first(c)) {
-                    ident_has_escape = FALSE;
-                    goto has_ident;
-                } else {
-                    js_parse_error(s, "unexpected character");
-                    goto fail;
-                }
-            }
-        }
-    def_token:
-        s->token.val = c;
-        p++;
-        break;
-    }
-    s->buf_ptr = p;
-
-    //    dump_token(s, &s->token);
-    return 0;
-
- fail:
-    s->token.val = TOK_ERROR;
-    return -1;
-}
-
-/* only used for ':' and '=>', 'let' or 'function' look-ahead */
-/* XXX: handle all unicode cases */
-static int peek_token(JSParseState *s, BOOL no_line_terminator)
-{
-    const uint8_t *p;
-    uint32_t c;
-
-    /* skip spaces and comments */
-    for (p = s->buf_ptr;;) {
-        switch(c = *p++) {
-        case '\r':
-        case '\n':
-            if (no_line_terminator)
-                return '\n';
-            continue;
-        case ' ':
-        case '\t':
-        case '\v':
-        case '\f':
-            continue;
-        case '/':
-            if (*p == '/') {
-                if (no_line_terminator)
-                    return '\n';
-                while (*p && *p != '\r' && *p != '\n')
-                    p++;
-                continue;
-            }
-            if (*p == '*') {
-                while (*++p) {
-                    if ((*p == '\r' || *p == '\n') && no_line_terminator)
-                        return '\n';
-                    if (*p == '*' && p[1] == '/') {
-                        p += 2;
-                        break;
-                    }
-                }
-                continue;
-            }
-            break;
-        case '=':
-            if (*p == '>')
-                return TOK_ARROW;
-            break;
-        default:
-            if (lre_js_is_ident_first(c)) {
-                if (c == 'i' && *p == 'n' && !lre_js_is_ident_next(p[1]))
-                    return TOK_IN;
-                if (c == 'o' && *p == 'f' && !lre_js_is_ident_next(p[1]))
-                    return TOK_OF;
-                else if (c == 'f' && p[0] == 'u' && p[1] == 'n' &&
-                         p[2] == 'c' && p[3] == 't' && p[4] == 'i' &&
-                         p[5] == 'o' && p[6] == 'n' && !lre_js_is_ident_next(p[7]))
-                    return TOK_FUNCTION;
-                else
-                    return TOK_IDENT;
-            }
-            break;
-        }
-        return c;
-    }
-}
-
-static inline int get_prev_opcode(JSFunctionDef *fd) {
-    if (fd->last_opcode_pos < 0)
-        return OP_invalid;
-    else
-        return fd->byte_code.buf[fd->last_opcode_pos];
-}
-
-static BOOL js_is_live_code(JSParseState *s) {
-    switch (get_prev_opcode(s->cur_func)) {
-    case OP_tail_call:
-    case OP_tail_call_method:
-    case OP_return:
-    case OP_return_undef:
-    case OP_return_async:
-    case OP_throw:
-    case OP_throw_var:
-    case OP_goto:
-#if SHORT_OPCODES
-    case OP_goto8:
-    case OP_goto16:
-#endif
-    case OP_ret:
-        return FALSE;
-    default:
-        return TRUE;
-    }
-}
-
-static void emit_u8(JSParseState *s, uint8_t val)
-{
-    dbuf_putc(&s->cur_func->byte_code, val);
-}
-
-static void emit_u16(JSParseState *s, uint16_t val)
-{
-    dbuf_put_u16(&s->cur_func->byte_code, val);
-}
-
-static void emit_u32(JSParseState *s, uint32_t val)
-{
-    dbuf_put_u32(&s->cur_func->byte_code, val);
-}
-
-static void emit_op(JSParseState *s, uint8_t val)
-{
-    JSFunctionDef *fd = s->cur_func;
-    DynBuf *bc = &fd->byte_code;
-
-    /* Use the line number of the last token used, not the next token,
-       nor the current offset in the source file.
-     */
-    if (unlikely(fd->last_opcode_line_num != s->last_line_num)) {
-        dbuf_putc(bc, OP_line_num);
-        dbuf_put_u32(bc, s->last_line_num);
-        fd->last_opcode_line_num = s->last_line_num;
-    }
-    fd->last_opcode_pos = bc->size;
-    dbuf_putc(bc, val);
-}
-
-static void emit_atom(JSParseState *s, JSAtom name)
-{
-    emit_u32(s, JS_DupAtom(s->ctx, name));
-}
-
-static int update_label(JSFunctionDef *s, int label, int delta)
-{
-    LabelSlot *ls;
-
-    assert(label >= 0 && label < s->label_count);
-    ls = &s->label_slots[label];
-    ls->ref_count += delta;
-    assert(ls->ref_count >= 0);
-    return ls->ref_count;
-}
-
-static int new_label_fd(JSFunctionDef *fd, int label)
-{
-    LabelSlot *ls;
-
-    if (label < 0) {
-        if (fd->label_count >= fd->label_size) {
-            int new_size;
-            size_t slack;
-            LabelSlot *new_tab;
-
-            /* XXX: potential arithmetic overflow */
-            new_size = fd->label_size * 3 / 2 + 4;
-            new_tab = js_realloc2(fd->ctx, fd->label_slots, new_size * sizeof(*new_tab), &slack);
-            if (!new_tab)
-                return -1;
-            new_size += slack / sizeof(*new_tab);
-            fd->label_slots = new_tab;
-            fd->label_size = new_size;
-        }
-        label = fd->label_count++;
-        ls = &fd->label_slots[label];
-        ls->ref_count = 0;
-        ls->pos = -1;
-        ls->pos2 = -1;
-        ls->addr = -1;
-        ls->first_reloc = NULL;
-    }
-    return label;
-}
-
-static int new_label(JSParseState *s)
-{
-    return new_label_fd(s->cur_func, -1);
-}
-
-/* return the label ID offset */
-static int emit_label(JSParseState *s, int label)
-{
-    if (label >= 0) {
-        emit_op(s, OP_label);
-        emit_u32(s, label);
-        s->cur_func->label_slots[label].pos = s->cur_func->byte_code.size;
-        return s->cur_func->byte_code.size - 4;
-    } else {
-        return -1;
-    }
-}
-
-/* return label or -1 if dead code */
-static int emit_goto(JSParseState *s, int opcode, int label)
-{
-    if (js_is_live_code(s)) {
-        if (label < 0)
-            label = new_label(s);
-        emit_op(s, opcode);
-        emit_u32(s, label);
-        s->cur_func->label_slots[label].ref_count++;
-        return label;
-    }
-    return -1;
-}
-
-/* return the constant pool index. 'val' is not duplicated. */
-static int cpool_add(JSParseState *s, JSValue val)
-{
-    JSFunctionDef *fd = s->cur_func;
-    if (fd->cpool_count >= fd->cpool_size) {
-        int new_size;
-        size_t slack;
-        JSValue *new_tab;
-        /* XXX: potential arithmetic overflow */
-        new_size = max_int(fd->cpool_count + 1, fd->cpool_size * 3 / 2);
-        new_tab = js_realloc2(s->ctx, fd->cpool, new_size * sizeof(JSValue), &slack);
-        if (!new_tab)
-            return -1;
-        new_size += slack / sizeof(*new_tab);
-        fd->cpool = new_tab;
-        fd->cpool_size = new_size;
-    }
-    fd->cpool[fd->cpool_count++] = val;
-    return fd->cpool_count - 1;
-}
-
-static __exception int emit_push_const(JSParseState *s, JSValueConst val,
-                                       BOOL as_atom)
-{
-    int idx;
-
-    if (JS_VALUE_GET_TAG(val) == JS_TAG_STRING && as_atom) {
-        JSAtom atom;
-        /* warning: JS_NewAtomStr frees the string value */
-        JS_DupValue(s->ctx, val);
-        atom = JS_NewAtomStr(s->ctx, JS_VALUE_GET_STRING(val));
-        if (atom != JS_ATOM_NULL && !__JS_AtomIsTaggedInt(atom)) {
-            emit_op(s, OP_push_atom_value);
-            emit_u32(s, atom);
-            return 0;
-        }
-    }
-
-    idx = cpool_add(s, JS_DupValue(s->ctx, val));
-    if (idx < 0)
-        return -1;
-    emit_op(s, OP_push_const);
-    emit_u32(s, idx);
-    return 0;
-}
-
-/* return the variable index or -1 if not found,
-   add ARGUMENT_VAR_OFFSET for argument variables */
-static int find_arg(JSContext *ctx, JSFunctionDef *fd, JSAtom name)
-{
-    int i;
-    for(i = fd->arg_count; i-- > 0;) {
-        if (fd->args[i].var_name == name)
-            return i | ARGUMENT_VAR_OFFSET;
-    }
-    return -1;
-}
-
-static int find_var(JSContext *ctx, JSFunctionDef *fd, JSAtom name)
-{
-    int i;
-    for(i = fd->var_count; i-- > 0;) {
-        if (fd->vars[i].var_name == name && fd->vars[i].scope_level == 0)
-            return i;
-    }
-    return find_arg(ctx, fd, name);
-}
-
-static JSHoistedDef *find_hoisted_def(JSFunctionDef *fd, JSAtom name)
-{
-    int i;
-    for(i = 0; i < fd->hoisted_def_count; i++) {
-        JSHoistedDef *hf = &fd->hoisted_def[i];
-        if (hf->var_name == name)
-            return hf;
-    }
-    return NULL;
-
-}
-
-static JSHoistedDef *find_lexical_hoisted_def(JSFunctionDef *fd, JSAtom name)
-{
-    JSHoistedDef *hf = find_hoisted_def(fd, name);
-    if (hf && hf->is_lexical)
-        return hf;
-    else
-        return NULL;
-}
-
-static int find_lexical_decl(JSContext *ctx, JSFunctionDef *fd, JSAtom name,
-                             int scope_idx, BOOL check_catch_var)
-{
-    while (scope_idx >= 0) {
-        JSVarDef *vd = &fd->vars[scope_idx];
-        if (vd->var_name == name &&
-            (vd->is_lexical || (vd->var_kind == JS_VAR_CATCH &&
-                                check_catch_var)))
-            return scope_idx;
-        scope_idx = vd->scope_next;
-    }
-
-    if (fd->is_eval && fd->eval_type == JS_EVAL_TYPE_GLOBAL) {
-        if (find_lexical_hoisted_def(fd, name))
-            return GLOBAL_VAR_OFFSET;
-    }
-    return -1;
-}
-
-static int push_scope(JSParseState *s) {
-    if (s->cur_func) {
-        JSFunctionDef *fd = s->cur_func;
-        int scope = fd->scope_count;
-        /* XXX: should check for scope overflow */
-        if ((fd->scope_count + 1) > fd->scope_size) {
-            int new_size;
-            size_t slack;
-            JSVarScope *new_buf;
-            /* XXX: potential arithmetic overflow */
-            new_size = max_int(fd->scope_count + 1, fd->scope_size * 3 / 2);
-            if (fd->scopes == fd->def_scope_array) {
-                new_buf = js_realloc2(s->ctx, NULL, new_size * sizeof(*fd->scopes), &slack);
-                if (!new_buf)
-                    return -1;
-                memcpy(new_buf, fd->scopes, fd->scope_count * sizeof(*fd->scopes));
-            } else {
-                new_buf = js_realloc2(s->ctx, fd->scopes, new_size * sizeof(*fd->scopes), &slack);
-                if (!new_buf)
-                    return -1;
-            }
-            new_size += slack / sizeof(*new_buf);
-            fd->scopes = new_buf;
-            fd->scope_size = new_size;
-        }
-        fd->scope_count++;
-        fd->scopes[scope].parent = fd->scope_level;
-        fd->scopes[scope].first = fd->scope_first;
-        emit_op(s, OP_enter_scope);
-        emit_u16(s, scope);
-        return fd->scope_level = scope;
-    }
-    return 0;
-}
-
-static int get_first_lexical_var(JSFunctionDef *fd, int scope)
-{
-    while (scope >= 0) {
-        int scope_idx = fd->scopes[scope].first;
-        if (scope_idx >= 0)
-            return scope_idx;
-        scope = fd->scopes[scope].parent;
-    }
-    return -1;
-}
-
-static void pop_scope(JSParseState *s) {
-    if (s->cur_func) {
-        /* disable scoped variables */
-        JSFunctionDef *fd = s->cur_func;
-        int scope = fd->scope_level;
-        emit_op(s, OP_leave_scope);
-        emit_u16(s, scope);
-        fd->scope_level = fd->scopes[scope].parent;
-        fd->scope_first = get_first_lexical_var(fd, fd->scope_level);
-    }
-}
-
-static void close_scopes(JSParseState *s, int scope, int scope_stop)
-{
-    while (scope > scope_stop) {
-        emit_op(s, OP_leave_scope);
-        emit_u16(s, scope);
-        scope = s->cur_func->scopes[scope].parent;
-    }
-}
-
-/* return the variable index or -1 if error */
-static int add_var(JSContext *ctx, JSFunctionDef *fd, JSAtom name)
-{
-    JSVarDef *vd;
-
-    /* the local variable indexes are currently stored on 16 bits */
-    if (fd->var_count >= JS_MAX_LOCAL_VARS) {
-        JS_ThrowInternalError(ctx, "too many local variables");
-        return -1;
-    }
-    if ((fd->var_count + 1) > fd->var_size) {
-        int new_size;
-        size_t slack;
-        JSVarDef *new_buf;
-        new_size = max_int(fd->var_count + 1, fd->var_size * 3 / 2);
-        new_buf = js_realloc2(ctx, fd->vars, new_size * sizeof(*fd->vars), &slack);
-        if (!new_buf)
-            return -1;
-        new_size += slack / sizeof(*new_buf);
-        fd->vars = new_buf;
-        fd->var_size = new_size;
-    }
-    vd = &fd->vars[fd->var_count++];
-    memset(vd, 0, sizeof(*vd));
-    vd->var_name = JS_DupAtom(ctx, name);
-    return fd->var_count - 1;
-}
-
-static int add_func_var(JSContext *ctx, JSFunctionDef *fd, JSAtom name)
-{
-    int idx = fd->func_var_idx;
-    if (idx < 0 && (idx = add_var(ctx, fd, name)) >= 0) {
-        fd->func_var_idx = idx;
-        fd->vars[idx].is_func_var = TRUE;
-        if (fd->js_mode & JS_MODE_STRICT)
-            fd->vars[idx].is_const = TRUE;
-    }
-    return idx;
-}
-
-static int add_arguments_var(JSContext *ctx, JSFunctionDef *fd, JSAtom name)
-{
-    int idx = fd->arguments_var_idx;
-    if (idx < 0 && (idx = add_var(ctx, fd, name)) >= 0) {
-        fd->arguments_var_idx = idx;
-    }
-    return idx;
-}
-
-static int add_arg(JSContext *ctx, JSFunctionDef *fd, JSAtom name)
-{
-    JSVarDef *vd;
-
-    /* the local variable indexes are currently stored on 16 bits */
-    if (fd->arg_count >= JS_MAX_LOCAL_VARS) {
-        JS_ThrowInternalError(ctx, "too many arguments");
-        return -1;
-    }
-    if ((fd->arg_count + 1) > fd->arg_size) {
-        int new_size;
-        size_t slack;
-        JSVarDef *new_buf;
-        new_size = max_int(fd->arg_count + 1, fd->arg_size * 3 / 2);
-        new_buf = js_realloc2(ctx, fd->args, new_size * sizeof(*fd->args), &slack);
-        if (!new_buf)
-            return -1;
-        new_size += slack / sizeof(*new_buf);
-        fd->args = new_buf;
-        fd->arg_size = new_size;
-    }
-    vd = &fd->args[fd->arg_count++];
-    memset(vd, 0, sizeof(*vd));
-    vd->var_name = JS_DupAtom(ctx, name);
-    return fd->arg_count - 1;
-}
-
-/* add a Hoisted definition for a function (cpool_idx >= 0) or a
-   global variable (cpool_idx = -1) */
-static JSHoistedDef *add_hoisted_def(JSContext *ctx,
-                                     JSFunctionDef *s, int cpool_idx,
-                                     JSAtom name, int var_idx, BOOL is_lexical)
-{
-    JSHoistedDef *hf;
-
-    if (s->hoisted_def_count >= s->hoisted_def_size) {
-        int new_size;
-        size_t slack;
-        JSHoistedDef *new_tab;
-        new_size = max_int(s->hoisted_def_count + 1,
-                           s->hoisted_def_size * 3 / 2);
-        new_tab = js_realloc2(ctx, s->hoisted_def, new_size * sizeof(s->hoisted_def[0]), &slack);
-        if (!new_tab)
-            return NULL;
-        new_size += slack / sizeof(*new_tab);
-        s->hoisted_def = new_tab;
-        s->hoisted_def_size = new_size;
-    }
-    hf = &s->hoisted_def[s->hoisted_def_count++];
-    hf->cpool_idx = cpool_idx;
-    hf->force_init = 0;
-    hf->is_lexical = is_lexical;
-    hf->is_const = FALSE;
-    hf->is_for_of = FALSE;
-    hf->var_idx = var_idx;
-    hf->scope_level = s->scope_level;
-    hf->var_name = JS_ATOM_NULL;
-    if (name != JS_ATOM_NULL) {
-        hf->var_name = JS_DupAtom(ctx, name);
-    }
-    return hf;
-}
-
-static int define_var(JSParseState *s, JSFunctionDef *fd, JSAtom name, int tok)
-{
-    JSContext *ctx = s->ctx;
-    JSVarDef *vd;
-    int idx;
-
-    switch (tok) {
-    case TOK_WITH:
-        idx = add_var(ctx, fd, name);
-        if (idx >= 0) {
-            vd = &fd->vars[idx];
-            vd->scope_level = fd->scope_level;
-            vd->scope_next = fd->scope_first;
-            fd->scopes[fd->scope_level].first = idx;
-            fd->scope_first = idx;
-        }
-        break;
-
-    case TOK_LET:
-    case TOK_CONST:
-    case TOK_FUNCTION:
-        idx = find_lexical_decl(ctx, fd, name, fd->scope_first, TRUE);
-        if (idx >= 0) {
-            if ((idx < GLOBAL_VAR_OFFSET &&
-                 (fd->vars[idx].scope_level == fd->scope_level ||
-                  (fd->vars[idx].var_kind == JS_VAR_CATCH && (fd->vars[idx].scope_level + 2) == fd->scope_level))) ||
-                (idx == GLOBAL_VAR_OFFSET && fd->scope_level == 1)) {
-                /* redefining a scoped var in the same scope: error */
-                return js_parse_error(s, "invalid redefinition of lexical identifier");
-            }
-        }
-        if (tok != TOK_FUNCTION &&
-            (fd->func_kind == JS_FUNC_ASYNC ||
-             fd->func_kind == JS_FUNC_GENERATOR ||
-             fd->func_kind == JS_FUNC_ASYNC_GENERATOR ||
-             fd->func_type == JS_PARSE_FUNC_METHOD) &&
-            find_arg(ctx, fd, name) >= 0) {
-            /* lexical variable redefines a parameter name */
-            return js_parse_error(s, "invalid redefinition of parameter name");
-        }
-
-        if (fd->is_eval &&
-            (fd->eval_type == JS_EVAL_TYPE_GLOBAL ||
-             fd->eval_type == JS_EVAL_TYPE_MODULE) &&
-            fd->scope_level == 1) {
-            JSHoistedDef *hf;
-            hf = find_hoisted_def(fd, name);
-            /* XXX: should check scope chain */
-            if (hf && hf->scope_level == fd->scope_level) {
-                return js_parse_error(s, "invalid redefinition of global identifier");
-            }
-            hf = add_hoisted_def(s->ctx, fd, -1, name, -1, TRUE);
-            if (!hf)
-                return -1;
-            hf->is_const = (tok == TOK_CONST);
-            idx = GLOBAL_VAR_OFFSET;
-        } else {
-            if (fd->is_global_var) {
-                JSHoistedDef *hf;
-                hf = find_hoisted_def(fd, name);
-                /* XXX: should check scope chain */
-                if (hf && hf->scope_level == fd->scope_level) {
-                    return js_parse_error(s, "invalid redefinition of global identifier");
-                }
-            }
-            /* XXX: should also fail at scope_level 1 if name duplicates argument or var name */
-            idx = add_var(ctx, fd, name);
-            if (idx >= 0) {
-                vd = &fd->vars[idx];
-                vd->is_lexical = 1;
-                vd->is_function = (tok == TOK_FUNCTION);
-                vd->is_const = (tok == TOK_CONST);
-                vd->scope_level = fd->scope_level;
-                vd->scope_next = fd->scope_first;
-                fd->scopes[fd->scope_level].first = idx;
-                fd->scope_first = idx;
-            }
-        }
-        break;
-
-    case TOK_CATCH:
-        idx = add_var(ctx, fd, name);
-        if (idx >= 0) {
-            vd = &fd->vars[idx];
-            vd->var_kind = JS_VAR_CATCH;
-            vd->scope_level = fd->scope_level;
-            vd->scope_next = fd->scope_first;
-            fd->scopes[fd->scope_level].first = idx;
-            fd->scope_first = idx;
-        }
-        break;
-
-    default:
-        /* TOK_VAR, TOK_FOR (used for for-of variable definition) */
-        if (find_lexical_decl(ctx, fd, name, fd->scope_first,
-                              (tok == TOK_FOR)) >= 0) {
-       invalid_lexical_redefinition:
-            /* error to redefine a var that inside a lexical scope */
-            return js_parse_error(s, "invalid redefinition of lexical identifier");
-        }
-        if (fd->is_global_var) {
-            JSHoistedDef *hf;
-            hf = find_hoisted_def(fd, name);
-            if (hf && hf->is_lexical && hf->scope_level == fd->scope_level &&
-                fd->eval_type == JS_EVAL_TYPE_MODULE) {
-                goto invalid_lexical_redefinition;
-            }
-            hf = add_hoisted_def(s->ctx, fd, -1, name, -1, FALSE);
-            if (!hf)
-                return -1;
-            hf->is_for_of = (tok == TOK_FOR);
-            idx = GLOBAL_VAR_OFFSET;
-        } else {
-            /* if the variable already exists, don't add it again  */
-            idx = find_var(ctx, fd, name);
-            if (idx >= 0)
-                break;
-            idx = add_var(ctx, fd, name);
-            if (idx >= 0) {
-                if (name == JS_ATOM_arguments && fd->has_arguments_binding)
-                    fd->arguments_var_idx = idx;
-            }
-        }
-        break;
-    }
-    return idx;
-}
-
-static __exception int js_parse_expr(JSParseState *s);
-static __exception int js_parse_function_decl(JSParseState *s,
-                                              JSParseFunctionEnum func_type,
-                                              JSFunctionKindEnum func_kind,
-                                              JSAtom func_name, const uint8_t *ptr,
-                                              int start_line);
-static JSFunctionDef *js_parse_function_class_fields_init(JSParseState *s);
-static __exception int js_parse_function_decl2(JSParseState *s,
-                                               JSParseFunctionEnum func_type,
-                                               JSFunctionKindEnum func_kind,
-                                               JSAtom func_name,
-                                               const uint8_t *ptr,
-                                               int function_line_num,
-                                               JSParseExportEnum export_flag,
-                                               JSFunctionDef **pfd);
-static __exception int js_parse_assign_expr(JSParseState *s, int in_accepted);
-static __exception int js_parse_unary(JSParseState *s, int exponentiation_flag);
-static void push_break_entry(JSFunctionDef *fd, BlockEnv *be,
-                             JSAtom label_name,
-                             int label_break, int label_cont,
-                             int drop_count);
-static void pop_break_entry(JSFunctionDef *fd);
-static JSExportEntry *add_export_entry(JSParseState *s, JSModuleDef *m,
-                                       JSAtom local_name, JSAtom export_name,
-                                       JSExportTypeEnum export_type);
-
-/* Note: all the fields are already sealed except length */
-static int seal_template_obj(JSContext *ctx, JSValueConst obj)
-{
-    JSObject *p;
-    JSShapeProperty *prs;
-
-    p = JS_VALUE_GET_OBJ(obj);
-    prs = find_own_property1(p, JS_ATOM_length);
-    if (prs) {
-        if (js_update_property_flags(ctx, p, &prs,
-                                     prs->flags & ~(JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)))
-            return -1;
-    }
-    p->extensible = FALSE;
-    return 0;
-}
-
-static __exception int js_parse_template(JSParseState *s, int call, int *argc)
-{
-    JSContext *ctx = s->ctx;
-    JSValue raw_array, template_object;
-    JSToken cooked;
-    int depth, ret;
-
-    raw_array = JS_UNDEFINED; /* avoid warning */
-    template_object = JS_UNDEFINED; /* avoid warning */
-    if (call) {
-        /* Create a template object: an array of cooked strings */
-        /* Create an array of raw strings and store it to the raw property */
-        template_object = JS_NewArray(ctx);
-        if (JS_IsException(template_object))
-            return -1;
-        //        pool_idx = s->cur_func->cpool_count;
-        ret = emit_push_const(s, template_object, 0);
-        JS_FreeValue(ctx, template_object);
-        if (ret)
-            return -1;
-        raw_array = JS_NewArray(ctx);
-        if (JS_IsException(raw_array))
-            return -1;
-        if (JS_DefinePropertyValue(ctx, template_object, JS_ATOM_raw,
-                                   raw_array, JS_PROP_THROW) < 0) {
-            return -1;
-        }
-    }
-
-    depth = 0;
-    while (s->token.val == TOK_TEMPLATE) {
-        const uint8_t *p = s->token.ptr + 1;
-        cooked = s->token;
-        if (call) {
-            if (JS_DefinePropertyValueUint32(ctx, raw_array, depth,
-                                             JS_DupValue(ctx, s->token.u.str.str),
-                                             JS_PROP_ENUMERABLE | JS_PROP_THROW) < 0) {
-                return -1;
-            }
-            /* re-parse the string with escape sequences but do not throw a
-               syntax error if it contains invalid sequences
-             */
-            if (js_parse_string(s, '`', FALSE, p, &cooked, &p)) {
-                cooked.u.str.str = JS_UNDEFINED;
-            }
-            if (JS_DefinePropertyValueUint32(ctx, template_object, depth,
-                                             cooked.u.str.str,
-                                             JS_PROP_ENUMERABLE | JS_PROP_THROW) < 0) {
-                return -1;
-            }
-        } else {
-            JSString *str;
-            /* re-parse the string with escape sequences and throw a
-               syntax error if it contains invalid sequences
-             */
-            JS_FreeValue(ctx, s->token.u.str.str);
-            s->token.u.str.str = JS_UNDEFINED;
-            if (js_parse_string(s, '`', TRUE, p, &cooked, &p))
-                return -1;
-            str = JS_VALUE_GET_STRING(cooked.u.str.str);
-            if (str->len != 0 || depth == 0) {
-                ret = emit_push_const(s, cooked.u.str.str, 1);
-                JS_FreeValue(s->ctx, cooked.u.str.str);
-                if (ret)
-                    return -1;
-                if (depth == 0) {
-                    if (s->token.u.str.sep == '`')
-                        goto done1;
-                    emit_op(s, OP_get_field2);
-                    emit_atom(s, JS_ATOM_concat);
-                }
-                depth++;
-            } else {
-                JS_FreeValue(s->ctx, cooked.u.str.str);
-            }
-        }
-        if (s->token.u.str.sep == '`')
-            goto done;
-        if (next_token(s))
-            return -1;
-        if (js_parse_assign_expr(s, TRUE))
-            return -1;
-        depth++;
-        if (s->token.val != '}') {
-            return js_parse_error(s, "expected '}' after template expression");
-        }
-        /* XXX: should convert to string at this stage? */
-        free_token(s, &s->token);
-        /* Resume TOK_TEMPLATE parsing (s->token.line_num and s->token.ptr are OK) */
-        s->got_lf = FALSE;
-        s->last_line_num = s->token.line_num;
-        if (js_parse_template_part(s, s->buf_ptr))
-            return -1;
-    }
-    return js_parse_expect(s, TOK_TEMPLATE);
-
- done:
-    if (call) {
-        /* Seal the objects */
-        seal_template_obj(ctx, raw_array);
-        seal_template_obj(ctx, template_object);
-        *argc = depth + 1;
-    } else {
-        emit_op(s, OP_call_method);
-        emit_u16(s, depth - 1);
-    }
- done1:
-    return next_token(s);
-}
-
-
-#define PROP_TYPE_IDENT 0
-#define PROP_TYPE_VAR   1
-#define PROP_TYPE_GET   2
-#define PROP_TYPE_SET   3
-#define PROP_TYPE_STAR  4
-#define PROP_TYPE_ASYNC 5
-#define PROP_TYPE_ASYNC_STAR 6
-
-#define PROP_TYPE_PRIVATE (1 << 4)
-
-static BOOL token_is_ident(int tok)
-{
-    /* Accept keywords and reserved words as property names */
-    return (tok == TOK_IDENT ||
-            (tok >= TOK_FIRST_KEYWORD &&
-             tok <= TOK_LAST_KEYWORD));
-}
-
-/* if the property is an expression, name = JS_ATOM_NULL */
-static int __exception js_parse_property_name(JSParseState *s,
-                                              JSAtom *pname,
-                                              BOOL allow_method, BOOL allow_var,
-                                              BOOL allow_private)
-{
-    int is_private = 0;
-    JSAtom name;
-    int prop_type;
-    
-    prop_type = PROP_TYPE_IDENT;
-    if (allow_method) {
-        if (token_is_pseudo_keyword(s, JS_ATOM_get)
-        ||  token_is_pseudo_keyword(s, JS_ATOM_set)) {
-            /* get x(), set x() */
-            name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
-            if (next_token(s))
-                goto fail1;
-            if (s->token.val == ':' || s->token.val == ',' ||
-                s->token.val == '}' || s->token.val == '(')
-                goto done;
-            prop_type = PROP_TYPE_GET + (name == JS_ATOM_set);
-            JS_FreeAtom(s->ctx, name);
-        } else if (s->token.val == '*') {
-            if (next_token(s))
-                goto fail;
-            prop_type = PROP_TYPE_STAR;
-        } else if (token_is_pseudo_keyword(s, JS_ATOM_async) &&
-                   peek_token(s, TRUE) != '\n') {
-            name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
-            if (next_token(s))
-                goto fail1;
-            if (s->token.val == ':' || s->token.val == ',' ||
-                s->token.val == '}' || s->token.val == '(')
-                goto done;
-            JS_FreeAtom(s->ctx, name);
-            if (s->token.val == '*') {
-                if (next_token(s))
-                    goto fail;
-                prop_type = PROP_TYPE_ASYNC_STAR;
-            } else {
-                prop_type = PROP_TYPE_ASYNC;
-            }
-        }
-    }
-
-    if (token_is_ident(s->token.val)) {
-        /* variable can only be a non-reserved identifier */
-        if (s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved &&
-            prop_type == PROP_TYPE_IDENT && allow_var) {
-            int tok = peek_token(s, FALSE);
-            if (!(tok == ':' || (tok == '(' && allow_method))) {
-                prop_type = PROP_TYPE_VAR;
-            }
-        }
-        /* keywords and reserved words have a valid atom */
-        name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
-        if (next_token(s))
-            goto fail1;
-    } else if (s->token.val == TOK_STRING) {
-        name = js_value_to_atom(s->ctx, s->token.u.str.str);
-        if (name == JS_ATOM_NULL)
-            goto fail;
-        if (next_token(s))
-            goto fail1;
-    } else if (s->token.val == TOK_NUMBER) {
-        JSValue val;
-        val = s->token.u.num.val;
-#ifdef CONFIG_BIGNUM
-        if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_FLOAT) {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            double d;
-            d = bf_mul_pow10_to_float64(s->ctx, &p->num,
-                                        s->token.u.num.exponent);
-            val = __JS_NewFloat64(s->ctx, d);
-            name = js_value_to_atom(s->ctx, val);
-            JS_FreeValue(s->ctx, val);
-        } else
-#endif
-        {
-            name = js_value_to_atom(s->ctx, val);
-        }
-        if (name == JS_ATOM_NULL)
-            goto fail;
-        if (next_token(s))
-            goto fail1;
-    } else if (s->token.val == '[') {
-        if (next_token(s))
-            goto fail;
-        if (js_parse_expr(s))
-            goto fail;
-        if (js_parse_expect(s, ']'))
-            goto fail;
-        name = JS_ATOM_NULL;
-    } else if (s->token.val == TOK_PRIVATE_NAME && allow_private) {
-        name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
-        if (next_token(s))
-            goto fail1;
-        is_private = PROP_TYPE_PRIVATE;
-    } else {
-        goto invalid_prop;
-    }
-    if (prop_type != PROP_TYPE_IDENT && prop_type != PROP_TYPE_VAR &&
-        s->token.val != '(') {
-        JS_FreeAtom(s->ctx, name);
-    invalid_prop:
-        js_parse_error(s, "invalid property name");
-        goto fail;
-    }
- done:
-    *pname = name;
-    return prop_type | is_private;
- fail1:
-    JS_FreeAtom(s->ctx, name);
- fail:
-    *pname = JS_ATOM_NULL;
-    return -1;
-}
-
-typedef struct JSParsePos {
-    int last_line_num;
-    int line_num;
-    BOOL got_lf;
-    const uint8_t *ptr;
-} JSParsePos;
-
-static int js_parse_get_pos(JSParseState *s, JSParsePos *sp)
-{
-    sp->last_line_num = s->last_line_num;
-    sp->line_num = s->token.line_num;
-    sp->ptr = s->token.ptr;
-    sp->got_lf = s->got_lf;
-    return 0;
-}
-
-static __exception int js_parse_seek_token(JSParseState *s, const JSParsePos *sp)
-{
-    s->token.line_num = sp->last_line_num;
-    s->line_num = sp->line_num;
-    s->buf_ptr = sp->ptr;
-    s->got_lf = sp->got_lf;
-    return next_token(s);
-}
-
-#define SKIP_HAS_SEMI      (1 << 0)
-#define SKIP_HAS_ELLIPSIS  (1 << 1)
-
-/* XXX: improve speed with early bailout */
-/* XXX: no longer works if regexps are present. Could use previous
-   regexp parsing heuristics to handle most cases */
-static int js_parse_skip_parens_token(JSParseState *s, int *pbits, BOOL no_line_terminator)
-{
-    char state[256];
-    size_t level = 0;
-    JSParsePos pos;
-    int tok = TOK_EOF;
-    int bits = 0;
-
-    /* protect from underflow */
-    state[level++] = 0;
-
-    js_parse_get_pos(s, &pos);
-    for (;;) {
-        switch(s->token.val) {
-        case '(':
-        case '[':
-        case '{':
-            if (level >= sizeof(state))
-                goto done;
-            state[level++] = s->token.val;
-            break;
-        case ')':
-            if (state[--level] != '(')
-                goto done;
-            break;
-        case ']':
-            if (state[--level] != '[')
-                goto done;
-            break;
-        case '}':
-            if (state[--level] != '{')
-                goto done;
-            break;
-        case TOK_EOF:
-            goto done;
-        case ';':
-            if (level == 2) {
-                bits |= SKIP_HAS_SEMI;
-            }
-            break;
-        case TOK_ELLIPSIS:
-            if (level == 2) {
-                bits |= SKIP_HAS_ELLIPSIS;
-            }
-            break;
-        }
-        if (next_token(s)) {
-            /* XXX: should clear the exception generated by next_token() */
-            break;
-        }
-        if (level <= 1) {
-            tok = s->token.val;
-            if (token_is_pseudo_keyword(s, JS_ATOM_of))
-                tok = TOK_OF;
-            if (no_line_terminator && s->last_line_num != s->token.line_num)
-                tok = '\n';
-            break;
-        }
-    }
- done:
-    if (pbits) {
-        *pbits = bits;
-    }
-    if (js_parse_seek_token(s, &pos))
-        return -1;
-    return tok;
-}
-
-static BOOL set_object_name(JSParseState *s, JSAtom name)
-{
-    JSFunctionDef *fd = s->cur_func;
-
-    if (get_prev_opcode(fd) == OP_set_name) {
-        /* XXX: should free atom after OP_set_name? */
-        fd->byte_code.size = fd->last_opcode_pos;
-        fd->last_opcode_pos = -1;
-        emit_op(s, OP_set_name);
-        emit_atom(s, name);
-        return TRUE;
-    }
-    return FALSE;
-}
-
-static void set_object_name_computed(JSParseState *s)
-{
-    JSFunctionDef *fd = s->cur_func;
-
-    if (get_prev_opcode(fd) == OP_set_name) {
-        /* XXX: should free atom after OP_set_name? */
-        fd->byte_code.size = fd->last_opcode_pos;
-        fd->last_opcode_pos = -1;
-        emit_op(s, OP_set_name_computed);
-    }
-}
-
-static __exception int js_parse_object_literal(JSParseState *s)
-{
-    JSAtom name = JS_ATOM_NULL;
-    const uint8_t *start_ptr;
-    int start_line, prop_type;
-    BOOL has_proto;
-
-    if (next_token(s))
-        goto fail;
-    /* XXX: add an initial length that will be patched back */
-    emit_op(s, OP_object);
-    has_proto = FALSE;
-    while (s->token.val != '}') {
-        /* specific case for getter/setter */
-        start_ptr = s->token.ptr;
-        start_line = s->token.line_num;
-
-        if (s->token.val == TOK_ELLIPSIS) {
-            if (next_token(s))
-                return -1;
-            if (js_parse_assign_expr(s, TRUE))
-                return -1;
-            emit_op(s, OP_null);  /* dummy excludeList */
-            emit_op(s, OP_copy_data_properties);
-            emit_u8(s, 2 | (1 << 2) | (0 << 5));
-            emit_op(s, OP_drop); /* pop excludeList */
-            emit_op(s, OP_drop); /* pop src object */
-            goto next;
-        }
-
-        prop_type = js_parse_property_name(s, &name, TRUE, TRUE, FALSE);
-        if (prop_type < 0)
-            goto fail;
-
-        if (prop_type == PROP_TYPE_VAR) {
-            /* shortcut for x: x */
-            emit_op(s, OP_scope_get_var);
-            emit_atom(s, name);
-            emit_u16(s, s->cur_func->scope_level);
-            emit_op(s, OP_define_field);
-            emit_atom(s, name);
-        } else if (s->token.val == '(') {
-            BOOL is_getset = (prop_type == PROP_TYPE_GET ||
-                              prop_type == PROP_TYPE_SET);
-            JSParseFunctionEnum func_type;
-            JSFunctionKindEnum func_kind;
-            int op_flags;
-
-            func_kind = JS_FUNC_NORMAL;
-            if (is_getset) {
-                func_type = JS_PARSE_FUNC_GETTER + prop_type - PROP_TYPE_GET;
-            } else {
-                func_type = JS_PARSE_FUNC_METHOD;
-                if (prop_type == PROP_TYPE_STAR)
-                    func_kind = JS_FUNC_GENERATOR;
-                else if (prop_type == PROP_TYPE_ASYNC)
-                    func_kind = JS_FUNC_ASYNC;
-                else if (prop_type == PROP_TYPE_ASYNC_STAR)
-                    func_kind = JS_FUNC_ASYNC_GENERATOR;
-            }
-            if (js_parse_function_decl(s, func_type, func_kind, JS_ATOM_NULL,
-                                       start_ptr, start_line))
-                goto fail;
-            if (name == JS_ATOM_NULL) {
-                emit_op(s, OP_define_method_computed);
-            } else {
-                emit_op(s, OP_define_method);
-                emit_atom(s, name);
-            }
-            if (is_getset) {
-                op_flags = OP_DEFINE_METHOD_GETTER +
-                    prop_type - PROP_TYPE_GET;
-            } else {
-                op_flags = OP_DEFINE_METHOD_METHOD;
-            }
-            emit_u8(s, op_flags | OP_DEFINE_METHOD_ENUMERABLE);
-        } else {
-            if (js_parse_expect(s, ':'))
-                goto fail;
-            if (js_parse_assign_expr(s, TRUE))
-                goto fail;
-            if (name == JS_ATOM_NULL) {
-                set_object_name_computed(s);
-                emit_op(s, OP_define_array_el);
-                emit_op(s, OP_drop);
-            } else if (name == JS_ATOM___proto__) {
-                if (has_proto) {
-                    js_parse_error(s, "duplicate __proto__ property name");
-                    goto fail;
-                }
-                emit_op(s, OP_set_proto);
-                has_proto = TRUE;
-            } else {
-                set_object_name(s, name);
-                emit_op(s, OP_define_field);
-                emit_atom(s, name);
-            }
-        }
-        JS_FreeAtom(s->ctx, name);
-    next:
-        name = JS_ATOM_NULL;
-        if (s->token.val != ',')
-            break;
-        if (next_token(s))
-            goto fail;
-    }
-    if (js_parse_expect(s, '}'))
-        goto fail;
-    return 0;
- fail:
-    JS_FreeAtom(s->ctx, name);
-    return -1;
-}
-
-static __exception int js_parse_postfix_expr(JSParseState *s,
-                                             BOOL accept_lparen);
-
-/* XXX: is there is nicer solution ? */
-static __exception int js_parse_class_default_ctor(JSParseState *s,
-                                                   BOOL has_super,
-                                                   JSFunctionDef **pfd)
-{
-    JSParsePos pos;
-    const char *str;
-    int ret, line_num;
-    JSParseFunctionEnum func_type;
-    const uint8_t *saved_buf_end;
-    
-    js_parse_get_pos(s, &pos);
-    if (has_super) {
-        str = "(...a){super(...a);}";
-        func_type = JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR;
-    } else {
-        str = "(){}";
-        func_type = JS_PARSE_FUNC_CLASS_CONSTRUCTOR;
-    }
-    line_num = s->token.line_num;
-    saved_buf_end = s->buf_end;
-    s->buf_ptr = (uint8_t *)str;
-    s->buf_end = (uint8_t *)(str + strlen(str));
-    ret = next_token(s);
-    if (!ret) {
-        ret = js_parse_function_decl2(s, func_type, JS_FUNC_NORMAL,
-                                      JS_ATOM_NULL, (uint8_t *)str,
-                                      line_num, JS_PARSE_EXPORT_NONE, pfd);
-    }
-    s->buf_end = saved_buf_end;
-    ret |= js_parse_seek_token(s, &pos);
-    return ret;
-}
-
-/* find field in the current scope */
-static int find_private_class_field(JSContext *ctx, JSFunctionDef *fd,
-                                    JSAtom name, int scope_level)
-{
-    int idx;
-    idx = fd->scopes[scope_level].first;
-    while (idx != -1) {
-        if (fd->vars[idx].scope_level != scope_level)
-            break;
-        if (fd->vars[idx].var_name == name)
-            return idx;
-        idx = fd->vars[idx].scope_next;
-    }
-    return -1;
-}
-
-/* add field in the current scope */
-static int add_private_class_field(JSParseState *s, JSFunctionDef *fd,
-                                   JSAtom name, JSVarKindEnum var_kind)
-{
-    JSContext *ctx = s->ctx;
-    JSVarDef *vd;
-    int idx;
-
-    idx = add_var(ctx, fd, name);
-    if (idx < 0)
-        return idx;
-    vd = &fd->vars[idx];
-    vd->is_lexical = 1;
-    vd->is_const = 1;
-    vd->var_kind = var_kind;
-    vd->scope_level = fd->scope_level;
-    vd->scope_next = fd->scope_first;
-    fd->scopes[fd->scope_level].first = idx;
-    fd->scope_first = idx;
-    return idx;
-}
-
-/* initialize the class fields, called by the constructor. Note:
-   super() can be called in an arrow function, so <this> and
-   <class_fields_init> can be variable references */
-static void emit_class_field_init(JSParseState *s)
-{
-    int label_next;
-    
-    emit_op(s, OP_scope_get_var);
-    emit_atom(s, JS_ATOM_class_fields_init);
-    emit_u16(s, s->cur_func->scope_level);
-
-    /* no need to call the class field initializer if not defined */
-    emit_op(s, OP_dup);
-    label_next = emit_goto(s, OP_if_false, -1);
-    
-    emit_op(s, OP_scope_get_var);
-    emit_atom(s, JS_ATOM_this);
-    emit_u16(s, 0);
-    
-    emit_op(s, OP_swap);
-    
-    emit_op(s, OP_call_method);
-    emit_u16(s, 0);
-
-    emit_label(s, label_next);
-    emit_op(s, OP_drop);
-}
-
-/* build a private setter function name from the private getter name */
-static JSAtom get_private_setter_name(JSContext *ctx, JSAtom name)
-{
-    return js_atom_concat_str(ctx, name, "<set>");
-}
-
-typedef struct {
-    JSFunctionDef *fields_init_fd;
-    int computed_fields_count;
-    BOOL has_brand;
-    int brand_push_pos;
-} ClassFieldsDef;
-
-static __exception int emit_class_init_start(JSParseState *s,
-                                             ClassFieldsDef *cf)
-{
-    int label_add_brand;
-    
-    cf->fields_init_fd = js_parse_function_class_fields_init(s);
-    if (!cf->fields_init_fd)
-        return -1;
-
-    s->cur_func = cf->fields_init_fd;
-    
-    /* XXX: would be better to add the code only if needed, maybe in a
-       later pass */
-    emit_op(s, OP_push_false); /* will be patched later */
-    cf->brand_push_pos = cf->fields_init_fd->last_opcode_pos;
-    label_add_brand = emit_goto(s, OP_if_false, -1);
-    
-    emit_op(s, OP_scope_get_var);
-    emit_atom(s, JS_ATOM_this);
-    emit_u16(s, 0);
-    
-    emit_op(s, OP_scope_get_var);
-    emit_atom(s, JS_ATOM_home_object);
-    emit_u16(s, 0);
-    
-    emit_op(s, OP_add_brand);
-    
-    emit_label(s, label_add_brand);
-
-    s->cur_func = s->cur_func->parent;
-    return 0;
-}
-
-static __exception int add_brand(JSParseState *s, ClassFieldsDef *cf)
-{
-    if (!cf->has_brand) {
-        /* define the brand field in 'this' of the initializer */
-        if (!cf->fields_init_fd) {
-            if (emit_class_init_start(s, cf))
-                return -1;
-        }
-        /* patch the start of the function to enable the OP_add_brand code */
-        cf->fields_init_fd->byte_code.buf[cf->brand_push_pos] = OP_push_true;
-        
-        cf->has_brand = TRUE;
-    }
-    return 0;
-}
-
-static void emit_class_init_end(JSParseState *s, ClassFieldsDef *cf)
-{
-    int cpool_idx;
-        
-    s->cur_func = cf->fields_init_fd;
-    emit_op(s, OP_return_undef);
-    s->cur_func = s->cur_func->parent;
-    
-    cpool_idx = cpool_add(s, JS_NULL);
-    cf->fields_init_fd->parent_cpool_idx = cpool_idx;
-    emit_op(s, OP_fclosure);
-    emit_u32(s, cpool_idx);
-    emit_op(s, OP_set_home_object);
-}
-
-
-static __exception int js_parse_class(JSParseState *s, BOOL is_class_expr,
-                                      JSParseExportEnum export_flag)
-{
-    JSContext *ctx = s->ctx;
-    JSFunctionDef *fd = s->cur_func;
-    JSAtom name = JS_ATOM_NULL, class_name = JS_ATOM_NULL, class_name1;
-    JSAtom class_var_name = JS_ATOM_NULL;
-    JSFunctionDef *method_fd, *ctor_fd;
-    int saved_js_mode, class_name_var_idx, prop_type, ctor_cpool_offset;
-    int class_flags = 0, i;
-    BOOL is_static, is_private;
-    const uint8_t *class_start_ptr = s->token.ptr;
-    const uint8_t *start_ptr;
-    ClassFieldsDef class_fields[2];
-        
-    /* classes are parsed and executed in strict mode */
-    saved_js_mode = fd->js_mode;
-    fd->js_mode |= JS_MODE_STRICT;
-    if (next_token(s))
-        goto fail;
-    if (s->token.val == TOK_IDENT) {
-        if (s->token.u.ident.is_reserved) {
-            js_parse_error_reserved_identifier(s);
-            goto fail;
-        }
-        class_name = JS_DupAtom(ctx, s->token.u.ident.atom);
-        if (next_token(s))
-            goto fail;
-    } else if (!is_class_expr && export_flag != JS_PARSE_EXPORT_DEFAULT) {
-        js_parse_error(s, "class statement requires a name");
-        goto fail;
-    }
-    if (!is_class_expr) {
-        if (class_name == JS_ATOM_NULL)
-            class_var_name = JS_ATOM__default_; /* export default */
-        else
-            class_var_name = class_name;
-        class_var_name = JS_DupAtom(ctx, class_var_name);
-    }
-
-    push_scope(s);
-
-    if (s->token.val == TOK_EXTENDS) {
-        class_flags = JS_DEFINE_CLASS_HAS_HERITAGE;
-        if (next_token(s))
-            goto fail;
-        /* XXX: the grammar only allows LeftHandSideExpression */
-        if (js_parse_postfix_expr(s, TRUE))
-            goto fail;
-    } else {
-        emit_op(s, OP_undefined);
-    }
-
-    /* add a 'const' definition for the class name */
-    if (class_name != JS_ATOM_NULL) {
-        class_name_var_idx = define_var(s, fd, class_name, TOK_CONST);
-        if (class_name_var_idx < 0)
-            goto fail;
-    }
-
-    if (js_parse_expect(s, '{'))
-        goto fail;
-
-    /* this scope contains the private fields */
-    push_scope(s);
-
-    emit_op(s, OP_push_const);
-    ctor_cpool_offset = fd->byte_code.size;
-    emit_u32(s, 0); /* will be patched at the end of the class parsing */
-
-    if (class_var_name != JS_ATOM_NULL && class_name == JS_ATOM_NULL)
-        class_name1 = JS_ATOM_default;
-    else
-        class_name1 = class_name;
-    
-    emit_op(s, OP_define_class);
-    emit_atom(s, class_name1);
-    emit_u8(s, class_flags);
-
-    for(i = 0; i < 2; i++) {
-        ClassFieldsDef *cf = &class_fields[i];
-        cf->fields_init_fd = NULL;
-        cf->computed_fields_count = 0;
-        cf->has_brand = FALSE;
-    }
-    
-    ctor_fd = NULL;
-    while (s->token.val != '}') {
-        if (s->token.val == ';') {
-            if (next_token(s))
-                goto fail;
-            continue;
-        }
-        is_static = (s->token.val == TOK_STATIC);
-        if (is_static) {
-            if (next_token(s))
-                goto fail;
-        }
-        if (is_static)
-            emit_op(s, OP_swap);
-        start_ptr = s->token.ptr;
-        prop_type = js_parse_property_name(s, &name, TRUE, FALSE, TRUE);
-        if (prop_type < 0)
-            goto fail;
-        is_private = prop_type & PROP_TYPE_PRIVATE;
-        prop_type &= ~PROP_TYPE_PRIVATE;
-        
-        if ((name == JS_ATOM_constructor && !is_static &&
-             prop_type != PROP_TYPE_IDENT) ||
-            (name == JS_ATOM_prototype && is_static) ||
-            name == JS_ATOM_hash_constructor) {
-            js_parse_error(s, "invalid method name");
-            goto fail;
-        }
-        if (prop_type == PROP_TYPE_GET || prop_type == PROP_TYPE_SET) {
-            BOOL is_set = prop_type - PROP_TYPE_GET;
-            JSFunctionDef *method_fd;
-
-            if (is_private) {
-                int idx, var_kind;
-                idx = find_private_class_field(ctx, fd, name, fd->scope_level);
-                if (idx >= 0) {
-                    var_kind = fd->vars[idx].var_kind;
-                    if (var_kind == JS_VAR_PRIVATE_FIELD ||
-                        var_kind == JS_VAR_PRIVATE_METHOD ||
-                        var_kind == JS_VAR_PRIVATE_GETTER_SETTER ||
-                        var_kind == (JS_VAR_PRIVATE_GETTER + is_set)) {
-                        goto private_field_already_defined;
-                    }
-                    fd->vars[idx].var_kind = JS_VAR_PRIVATE_GETTER_SETTER;
-                } else {
-                    if (add_private_class_field(s, fd, name,
-                                                JS_VAR_PRIVATE_GETTER + is_set) < 0)
-                        goto fail;
-                }
-                if (add_brand(s, &class_fields[is_static]) < 0)
-                    goto fail;
-            }
-
-            if (js_parse_function_decl2(s, JS_PARSE_FUNC_GETTER + is_set,
-                                        JS_FUNC_NORMAL, JS_ATOM_NULL,
-                                        start_ptr, s->token.line_num,
-                                        JS_PARSE_EXPORT_NONE, &method_fd))
-                goto fail;
-            if (is_private) {
-                method_fd->need_home_object = TRUE; /* needed for brand check */
-                emit_op(s, OP_set_home_object);
-                /* XXX: missing function name */
-                emit_op(s, OP_scope_put_var_init);
-                if (is_set) {
-                    JSAtom setter_name;
-                    int ret;
-                    
-                    setter_name = get_private_setter_name(ctx, name);
-                    if (setter_name == JS_ATOM_NULL)
-                        goto fail;
-                    emit_atom(s, setter_name);
-                    ret = add_private_class_field(s, fd, setter_name,
-                                                  JS_VAR_PRIVATE_SETTER);
-                    JS_FreeAtom(ctx, setter_name);
-                    if (ret < 0)
-                        goto fail;
-                } else {
-                    emit_atom(s, name);
-                }
-                emit_u16(s, s->cur_func->scope_level);
-            } else {
-                if (name == JS_ATOM_NULL) {
-                    emit_op(s, OP_define_method_computed);
-                } else {
-                    emit_op(s, OP_define_method);
-                    emit_atom(s, name);
-                }
-                emit_u8(s, OP_DEFINE_METHOD_GETTER + is_set);
-            }
-        } else if (prop_type == PROP_TYPE_IDENT && s->token.val != '(') {
-            ClassFieldsDef *cf = &class_fields[is_static];
-            JSAtom field_var_name = JS_ATOM_NULL;
-            
-            /* class field */
-
-            /* XXX: spec: not consistent with method name checks */
-            if (name == JS_ATOM_constructor || name == JS_ATOM_prototype) {
-                js_parse_error(s, "invalid field name");
-                goto fail;
-            }
-            
-            if (is_private) {
-                if (find_private_class_field(ctx, fd, name,
-                                             fd->scope_level) >= 0) {
-                    goto private_field_already_defined;
-                }
-                if (add_private_class_field(s, fd, name,
-                                            JS_VAR_PRIVATE_FIELD) < 0)
-                    goto fail;
-                emit_op(s, OP_private_symbol);
-                emit_atom(s, name);
-                emit_op(s, OP_scope_put_var_init);
-                emit_atom(s, name);
-                emit_u16(s, s->cur_func->scope_level);
-            }
-
-            if (!cf->fields_init_fd) {
-                if (emit_class_init_start(s, cf))
-                    goto fail;
-            }
-            if (name == JS_ATOM_NULL ) {
-                /* save the computed field name into a variable */
-                field_var_name = js_atom_concat_num(ctx, JS_ATOM_computed_field + is_static, cf->computed_fields_count);
-                if (field_var_name == JS_ATOM_NULL)
-                    goto fail;
-                if (define_var(s, fd, field_var_name, TOK_CONST) < 0) {
-                    JS_FreeAtom(ctx, field_var_name);
-                    goto fail;
-                }
-                emit_op(s, OP_to_propkey);
-                emit_op(s, OP_scope_put_var_init);
-                emit_atom(s, field_var_name);
-                emit_u16(s, s->cur_func->scope_level);
-            }
-            s->cur_func = cf->fields_init_fd;
-            emit_op(s, OP_scope_get_var);
-            emit_atom(s, JS_ATOM_this);
-            emit_u16(s, 0);
-
-            if (name == JS_ATOM_NULL) {
-                emit_op(s, OP_scope_get_var);
-                emit_atom(s, field_var_name);
-                emit_u16(s, s->cur_func->scope_level);
-                cf->computed_fields_count++;
-                JS_FreeAtom(ctx, field_var_name);
-            } else if (is_private) {
-                emit_op(s, OP_scope_get_var);
-                emit_atom(s, name);
-                emit_u16(s, s->cur_func->scope_level);
-            }
-            
-            if (s->token.val == '=') {
-                if (next_token(s))
-                    goto fail;
-                if (js_parse_assign_expr(s, TRUE))
-                    goto fail;
-            } else {
-                emit_op(s, OP_undefined);
-            }
-            if (is_private) {
-                set_object_name_computed(s);
-                emit_op(s, OP_define_private_field);
-            } else if (name == JS_ATOM_NULL) {
-                set_object_name_computed(s);
-                emit_op(s, OP_define_array_el);
-                emit_op(s, OP_drop);
-            } else {
-                set_object_name(s, name);
-                emit_op(s, OP_define_field);
-                emit_atom(s, name);
-            }
-            s->cur_func = s->cur_func->parent;
-            if (js_parse_expect_semi(s))
-                goto fail;
-        } else {
-            JSParseFunctionEnum func_type;
-            JSFunctionKindEnum func_kind;
-            
-            func_type = JS_PARSE_FUNC_METHOD;
-            func_kind = JS_FUNC_NORMAL;
-            if (prop_type == PROP_TYPE_STAR) {
-                func_kind = JS_FUNC_GENERATOR;
-            } else if (prop_type == PROP_TYPE_ASYNC) {
-                func_kind = JS_FUNC_ASYNC;
-            } else if (prop_type == PROP_TYPE_ASYNC_STAR) {
-                func_kind = JS_FUNC_ASYNC_GENERATOR;
-            } else if (name == JS_ATOM_constructor && !is_static) {
-                if (ctor_fd) {
-                    js_parse_error(s, "property constructor appears more than once");
-                    goto fail;
-                }
-                if (class_flags & JS_DEFINE_CLASS_HAS_HERITAGE)
-                    func_type = JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR;
-                else
-                    func_type = JS_PARSE_FUNC_CLASS_CONSTRUCTOR;
-            }
-            if (is_private) {
-                if (add_brand(s, &class_fields[is_static]) < 0)
-                    goto fail;
-            }
-            if (js_parse_function_decl2(s, func_type, func_kind, JS_ATOM_NULL, start_ptr, s->token.line_num, JS_PARSE_EXPORT_NONE, &method_fd))
-                goto fail;
-            if (func_type == JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR ||
-                func_type == JS_PARSE_FUNC_CLASS_CONSTRUCTOR) {
-                ctor_fd = method_fd;
-            } else if (is_private) {
-                method_fd->need_home_object = TRUE; /* needed for brand check */
-                if (find_private_class_field(ctx, fd, name,
-                                             fd->scope_level) >= 0) {
-                private_field_already_defined:
-                    js_parse_error(s, "private class field is already defined");
-                    goto fail;
-                }
-                if (add_private_class_field(s, fd, name,
-                                            JS_VAR_PRIVATE_METHOD) < 0)
-                    goto fail;
-                emit_op(s, OP_set_home_object);
-                emit_op(s, OP_set_name);
-                emit_atom(s, name);
-                emit_op(s, OP_scope_put_var_init);
-                emit_atom(s, name);
-                emit_u16(s, s->cur_func->scope_level);
-            } else {
-                if (name == JS_ATOM_NULL) {
-                    emit_op(s, OP_define_method_computed);
-                } else {
-                    emit_op(s, OP_define_method);
-                    emit_atom(s, name);
-                }
-                emit_u8(s, OP_DEFINE_METHOD_METHOD);
-            }
-        }
-        if (is_static)
-            emit_op(s, OP_swap);
-        JS_FreeAtom(ctx, name);
-        name = JS_ATOM_NULL;
-    }
-
-    if (s->token.val != '}') {
-        js_parse_error(s, "expecting '%c'", '}');
-        goto fail;
-    }
-
-    if (!ctor_fd) {
-        if (js_parse_class_default_ctor(s, class_flags & JS_DEFINE_CLASS_HAS_HERITAGE, &ctor_fd))
-            goto fail;
-    }
-    /* patch the constant pool index for the constructor */
-    put_u32(fd->byte_code.buf + ctor_cpool_offset, ctor_fd->parent_cpool_idx);
-
-    /* store the class source code in the constructor. */
-    if (!(fd->js_mode & JS_MODE_STRIP)) {
-        js_free(ctx, ctor_fd->source);
-        ctor_fd->source_len = s->buf_ptr - class_start_ptr;
-        ctor_fd->source = js_strndup(ctx, (const char *)class_start_ptr,
-                                     ctor_fd->source_len);
-        if (!ctor_fd->source)
-            goto fail;
-    }
-
-    /* consume the '}' */
-    if (next_token(s))
-        goto fail;
-
-    /* store the function to initialize the fields to that it can be
-       referenced by the constructor */
-    {
-        ClassFieldsDef *cf = &class_fields[0];
-        int var_idx;
-        
-        var_idx = define_var(s, fd, JS_ATOM_class_fields_init, TOK_CONST);
-        if (var_idx < 0)
-            goto fail;
-        if (cf->fields_init_fd) {
-            emit_class_init_end(s, cf);
-        } else {
-            emit_op(s, OP_undefined);
-        }
-        emit_op(s, OP_scope_put_var_init);
-        emit_atom(s, JS_ATOM_class_fields_init);
-        emit_u16(s, s->cur_func->scope_level);
-    }
-
-    /* drop the prototype */
-    emit_op(s, OP_drop);
-
-    /* initialize the static fields */
-    if (class_fields[1].fields_init_fd != NULL) {
-        ClassFieldsDef *cf = &class_fields[1];
-        emit_op(s, OP_dup);
-        emit_class_init_end(s, cf);
-        emit_op(s, OP_call_method);
-        emit_u16(s, 0);
-        emit_op(s, OP_drop);
-    }
-    
-    if (class_name != JS_ATOM_NULL) {
-        /* store the class name in the scoped class name variable (it
-           is independent from the class statement variable
-           definition) */
-        emit_op(s, OP_dup);
-        emit_op(s, OP_scope_put_var_init);
-        emit_atom(s, class_name);
-        emit_u16(s, fd->scope_level);
-    }
-    pop_scope(s);
-    pop_scope(s);
-
-    /* the class statements have a block level scope */
-    if (class_var_name != JS_ATOM_NULL) {
-        if (define_var(s, fd, class_var_name, TOK_LET) < 0)
-            goto fail;
-        emit_op(s, OP_scope_put_var_init);
-        emit_atom(s, class_var_name);
-        emit_u16(s, fd->scope_level);
-    } else {
-        if (class_name == JS_ATOM_NULL) {
-            /* XXX: should be done before calling the initializers. It
-               could be done with a specific opcode to patch the code
-               before */
-            emit_op(s, OP_set_name);
-            emit_atom(s, class_name); /* will be patched by assignment */
-        }
-    }
-
-    if (export_flag != JS_PARSE_EXPORT_NONE) {
-        if (!add_export_entry(s, fd->module,
-                              class_var_name,
-                              export_flag == JS_PARSE_EXPORT_NAMED ? class_var_name : JS_ATOM_default,
-                              JS_EXPORT_TYPE_LOCAL))
-            goto fail;
-    }
-
-    JS_FreeAtom(ctx, class_name);
-    JS_FreeAtom(ctx, class_var_name);
-    fd->js_mode = saved_js_mode;
-    return 0;
- fail:
-    JS_FreeAtom(ctx, name);
-    JS_FreeAtom(ctx, class_name);
-    JS_FreeAtom(ctx, class_var_name);
-    fd->js_mode = saved_js_mode;
-    return -1;
-}
-
-static __exception int js_parse_array_literal(JSParseState *s)
-{
-    uint32_t idx;
-    BOOL need_length;
-
-    if (next_token(s))
-        return -1;
-    /* small regular arrays are created on the stack */
-    idx = 0;
-    while (s->token.val != ']' && idx < 32) {
-        if (s->token.val == ',' || s->token.val == TOK_ELLIPSIS)
-            break;
-        if (js_parse_assign_expr(s, TRUE))
-            return -1;
-        idx++;
-        /* accept trailing comma */
-        if (s->token.val == ',') {
-            if (next_token(s))
-                return -1;
-        } else
-        if (s->token.val != ']')
-            goto done;
-    }
-    emit_op(s, OP_array_from);
-    emit_u16(s, idx);
-
-    /* larger arrays and holes are handled with explicit indices */
-    need_length = FALSE;
-    while (s->token.val != ']' && idx < 0x7fffffff) {
-        if (s->token.val == TOK_ELLIPSIS)
-            break;
-        need_length = TRUE;
-        if (s->token.val != ',') {
-            if (js_parse_assign_expr(s, TRUE))
-                return -1;
-            emit_op(s, OP_define_field);
-            emit_u32(s, __JS_AtomFromUInt32(idx));
-            need_length = FALSE;
-        }
-        idx++;
-        /* accept trailing comma */
-        if (s->token.val == ',') {
-            if (next_token(s))
-                return -1;
-        }
-    }
-    if (s->token.val == ']') {
-        if (need_length) {
-            /* Set the length: Cannot use OP_define_field because
-               length is not configurable */
-            emit_op(s, OP_dup);
-            emit_op(s, OP_push_i32);
-            emit_u32(s, idx);
-            emit_op(s, OP_put_field);
-            emit_atom(s, JS_ATOM_length);
-        }
-        goto done;
-    }
-
-    /* huge arrays and spread elements require a dynamic index on the stack */
-    emit_op(s, OP_push_i32);
-    emit_u32(s, idx);
-
-    /* stack has array, index */
-    while (s->token.val != ']') {
-        if (s->token.val == TOK_ELLIPSIS) {
-            if (next_token(s))
-                return -1;
-            if (js_parse_assign_expr(s, TRUE))
-                return -1;
-#if 1
-            emit_op(s, OP_append);
-#else
-            int label_next, label_done;
-            label_next = new_label(s);
-            label_done = new_label(s);
-            /* enumerate object */
-            emit_op(s, OP_for_of_start);
-            emit_op(s, OP_rot5l);
-            emit_op(s, OP_rot5l);
-            emit_label(s, label_next);
-            /* on stack: enum_rec array idx */
-            emit_op(s, OP_for_of_next);
-            emit_u8(s, 2);
-            emit_goto(s, OP_if_true, label_done);
-            /* append element */
-            /* enum_rec array idx val -> enum_rec array new_idx */
-            emit_op(s, OP_define_array_el);
-            emit_op(s, OP_inc);
-            emit_goto(s, OP_goto, label_next);
-            emit_label(s, label_done);
-            /* close enumeration */
-            emit_op(s, OP_drop); /* drop undef val */
-            emit_op(s, OP_nip1); /* drop enum_rec */
-            emit_op(s, OP_nip1);
-            emit_op(s, OP_nip1);
-#endif
-        } else {
-            need_length = TRUE;
-            if (s->token.val != ',') {
-                if (js_parse_assign_expr(s, TRUE))
-                    return -1;
-                /* a idx val */
-                emit_op(s, OP_define_array_el);
-                need_length = FALSE;
-            }
-            emit_op(s, OP_inc);
-        }
-        if (s->token.val != ',')
-            break;
-        if (next_token(s))
-            return -1;
-    }
-    if (need_length) {
-        /* Set the length: cannot use OP_define_field because
-           length is not configurable */
-        emit_op(s, OP_dup1);    /* array length - array array length */
-        emit_op(s, OP_put_field);
-        emit_atom(s, JS_ATOM_length);
-    } else {
-        emit_op(s, OP_drop);    /* array length - array */
-    }
-done:
-    return js_parse_expect(s, ']');
-}
-
-/* XXX: remove */
-static BOOL has_with_scope(JSFunctionDef *s, int scope_level)
-{
-    /* check if scope chain contains a with statement */
-    while (s) {
-        int scope_idx = s->scopes[scope_level].first;
-        while (scope_idx >= 0) {
-            JSVarDef *vd = &s->vars[scope_idx];
-
-            if (vd->var_name == JS_ATOM__with_)
-                return TRUE;
-            scope_idx = vd->scope_next;
-        }
-        /* check parent scopes */
-        scope_level = s->parent_scope_level;
-        s = s->parent;
-    }
-    return FALSE;
-}
-
-typedef struct JSLValue {
-    int opcode;
-    int scope;
-    int label;
-    int depth;
-    int tok;
-    JSAtom name;
-} JSLValue;
-
-static __exception int get_lvalue(JSParseState *s, int *popcode, int *pscope,
-                                  JSAtom *pname, int *plabel, int *pdepth, BOOL keep,
-                                  int tok)
-{
-    JSFunctionDef *fd;
-    int opcode, scope, label, depth;
-    JSAtom name;
-
-    /* we check the last opcode to get the lvalue type */
-    fd = s->cur_func;
-    scope = 0;
-    name = JS_ATOM_NULL;
-    label = -1;
-    depth = 0;
-    switch(opcode = get_prev_opcode(fd)) {
-    case OP_scope_get_var:
-        name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
-        scope = get_u16(fd->byte_code.buf + fd->last_opcode_pos + 5);
-        if ((name == JS_ATOM_arguments || name == JS_ATOM_eval) &&
-            (fd->js_mode & JS_MODE_STRICT)) {
-            return js_parse_error(s, "invalid lvalue in strict mode");
-        }
-        if (name == JS_ATOM_this || name == JS_ATOM_new_target)
-            goto invalid_lvalue;
-        depth = 2;  /* will generate OP_get_ref_value */
-        break;
-    case OP_get_field:
-        name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
-        depth = 1;
-        break;
-    case OP_scope_get_private_field:
-        name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
-        scope = get_u16(fd->byte_code.buf + fd->last_opcode_pos + 5);
-        depth = 1;
-        break;
-    case OP_get_array_el:
-        depth = 2;
-        break;
-    case OP_get_super_value:
-        depth = 3;
-        break;
-    default:
-    invalid_lvalue:
-        if (tok == TOK_FOR) {
-            return js_parse_error(s, "invalid for in/of left hand-side");
-        } else if (tok == TOK_INC || tok == TOK_DEC) {
-            return js_parse_error(s, "invalid increment/decrement operand");
-        } else if (tok == '[' || tok == '{') {
-            return js_parse_error(s, "invalid destructuring target");
-        } else {
-            return js_parse_error(s, "invalid assignment left-hand side");
-        }
-    }
-    /* remove the last opcode */
-    fd->byte_code.size = fd->last_opcode_pos;
-    fd->last_opcode_pos = -1;
-
-    if (keep) {
-        /* get the value but keep the object/fields on the stack */
-        switch(opcode) {
-        case OP_scope_get_var:
-            label = new_label(s);
-            emit_op(s, OP_scope_make_ref);
-            emit_atom(s, name);
-            emit_u32(s, label);
-            emit_u16(s, scope);
-            update_label(fd, label, 1);
-            emit_op(s, OP_get_ref_value);
-            opcode = OP_get_ref_value;
-            break;
-        case OP_get_field:
-            emit_op(s, OP_get_field2);
-            emit_atom(s, name);
-            break;
-        case OP_scope_get_private_field:
-            emit_op(s, OP_scope_get_private_field2);
-            emit_atom(s, name);
-            emit_u16(s, scope);
-            break;
-        case OP_get_array_el:
-            /* XXX: replace by a single opcode ? */
-            emit_op(s, OP_to_propkey2);
-            emit_op(s, OP_dup2);
-            emit_op(s, OP_get_array_el);
-            break;
-        case OP_get_super_value:
-            emit_op(s, OP_to_propkey);
-            emit_op(s, OP_dup3);
-            emit_op(s, OP_get_super_value);
-            break;
-        default:
-            abort();
-        }
-    } else {
-        switch(opcode) {
-        case OP_scope_get_var:
-            label = new_label(s);
-            emit_op(s, OP_scope_make_ref);
-            emit_atom(s, name);
-            emit_u32(s, label);
-            emit_u16(s, scope);
-            update_label(fd, label, 1);
-            opcode = OP_get_ref_value;
-            break;
-        case OP_get_array_el:
-            emit_op(s, OP_to_propkey2);
-            break;
-        case OP_get_super_value:
-            emit_op(s, OP_to_propkey);
-            break;
-        }
-    }
-
-    *popcode = opcode;
-    *pscope = scope;
-    /* name has refcount for OP_get_field and OP_get_ref_value,
-       and JS_ATOM_NULL for other opcodes */
-    *pname = name;
-    *plabel = label;
-    if (pdepth)
-        *pdepth = depth;
-    return 0;
-}
-
-/* if special = TRUE: specific post inc/dec case */
-/* name has a live reference */
-static void put_lvalue(JSParseState *s, int opcode, int scope,
-                       JSAtom name, int label, BOOL special)
-{
-    switch(opcode) {
-    case OP_get_field:
-        if (!special)
-            emit_op(s, OP_insert2); /* obj v -> v obj v */
-        else
-            emit_op(s, OP_perm3); /* obj v0 v -> v0 obj v */
-        emit_op(s, OP_put_field);
-        emit_u32(s, name);  /* name has refcount */
-        break;
-    case OP_scope_get_private_field:
-        if (!special)
-            emit_op(s, OP_insert2); /* obj v -> v obj v */
-        else
-            emit_op(s, OP_perm3); /* obj v0 v -> v0 obj v */
-        emit_op(s, OP_scope_put_private_field);
-        emit_u32(s, name);  /* name has refcount */
-        emit_u16(s, scope);
-        break;
-    case OP_get_array_el:
-        if (!special)
-            emit_op(s, OP_insert3); /* obj prop v -> v obj prop v */
-        else
-            emit_op(s, OP_perm4); /* obj prop v0 v -> v0 obj prop v */
-        emit_op(s, OP_put_array_el);
-        break;
-    case OP_get_ref_value:
-        JS_FreeAtom(s->ctx, name);
-        emit_label(s, label);
-        if (!special)
-            emit_op(s, OP_insert3); /* obj prop v -> v obj prop v */
-        else
-            emit_op(s, OP_perm4); /* obj prop v0 v -> v0 obj prop v */
-        emit_op(s, OP_put_ref_value);
-        break;
-    case OP_get_super_value:
-        if (!special)
-            emit_op(s, OP_insert4); /* this obj prop v -> v this obj prop v */
-        else
-            emit_op(s, OP_perm5); /* this obj prop v0 v -> v0 this obj prop v */
-        emit_op(s, OP_put_super_value);
-        break;
-    default:
-        abort();
-    }
-}
-
-static void put_lvalue_nokeep(JSParseState *s, int opcode, int scope,
-                              JSAtom name, int label, int var_tok)
-{
-    switch(opcode) {
-    case OP_scope_get_var:  /* val -- */
-        emit_op(s, (var_tok == TOK_CONST || var_tok == TOK_LET) ?
-                OP_scope_put_var_init : OP_scope_put_var);
-        emit_u32(s, name);  /* has refcount */
-        emit_u16(s, scope);
-        break;
-    case OP_get_field:      /* obj val -- */
-        emit_op(s, OP_put_field);
-        emit_u32(s, name);  /* has refcount */
-        break;
-    case OP_scope_get_private_field:
-        emit_op(s, OP_scope_put_private_field);
-        emit_u32(s, name);  /* has refcount */
-        emit_u16(s, scope);
-        break;
-    case OP_get_array_el:   /* obj prop val -- */
-        emit_op(s, OP_put_array_el);
-        break;
-    case OP_get_ref_value:   /* obj prop val -- */
-        /* XXX: currently this reference is never optimized */
-        JS_FreeAtom(s->ctx, name);
-        emit_label(s, label);
-        //emit_op(s, OP_nop);   /* emit 2 bytes for optimizer */
-        emit_op(s, OP_put_ref_value);
-        break;
-    case OP_get_super_value:
-        emit_op(s, OP_put_super_value);
-        break;
-    default:
-        abort();
-    }
-}
-
-static __exception int js_parse_expr_paren(JSParseState *s)
-{
-    if (js_parse_expect(s, '('))
-        return -1;
-    if (js_parse_expr(s))
-        return -1;
-    if (js_parse_expect(s, ')'))
-        return -1;
-    return 0;
-}
-
-static int js_unsupported_keyword(JSParseState *s, JSAtom atom)
-{
-    char buf[ATOM_GET_STR_BUF_SIZE];
-    return js_parse_error(s, "unsupported keyword: %s",
-                          JS_AtomGetStr(s->ctx, buf, sizeof(buf), atom));
-}
-
-static __exception int js_define_var(JSParseState *s, JSAtom name, int tok)
-{
-    JSFunctionDef *fd = s->cur_func;
-
-    if (name == JS_ATOM_yield && fd->func_kind == JS_FUNC_GENERATOR) {
-        return js_parse_error(s, "yield is a reserved identifier");
-    }
-    if ((name == JS_ATOM_arguments || name == JS_ATOM_eval)
-    &&  (fd->js_mode & JS_MODE_STRICT)) {
-        return js_parse_error(s, "invalid variable name in strict mode");
-    }
-    if ((name == JS_ATOM_let || name == JS_ATOM_undefined)
-    &&  (tok == TOK_LET || tok == TOK_CONST)) {
-        return js_parse_error(s, "invalid lexical variable name");
-    }
-    if (define_var(s, fd, name, tok) < 0)
-        return -1;
-    return 0;
-}
-
-static void js_emit_spread_code(JSParseState *s, int depth)
-{
-    int label_rest_next, label_rest_done;
-
-    /* XXX: could check if enum object is an actual array and optimize
-       slice extraction. enumeration record and target array are in a
-       different order from OP_append case. */
-    /* enum_rec xxx -- enum_rec xxx array 0 */
-    emit_op(s, OP_array_from);
-    emit_u16(s, 0);
-    emit_op(s, OP_push_i32);
-    emit_u32(s, 0);
-    emit_label(s, label_rest_next = new_label(s));
-    emit_op(s, OP_for_of_next);
-    emit_u8(s, 2 + depth);
-    label_rest_done = emit_goto(s, OP_if_true, -1);
-    /* array idx val -- array idx */
-    emit_op(s, OP_define_array_el);
-    emit_op(s, OP_inc);
-    emit_goto(s, OP_goto, label_rest_next);
-    emit_label(s, label_rest_done);
-    /* enum_rec xxx array idx undef -- enum_rec xxx array */
-    emit_op(s, OP_drop);
-    emit_op(s, OP_drop);
-}
-
-static int js_parse_check_duplicate_parameter(JSParseState *s, JSAtom name)
-{
-    /* Check for duplicate parameter names */
-    JSFunctionDef *fd = s->cur_func;
-    int i;
-    for (i = 0; i < fd->arg_count; i++) {
-        if (fd->args[i].var_name == name)
-            goto duplicate;
-    }
-    for (i = 0; i < fd->var_count; i++) {
-        if (fd->vars[i].var_name == name)
-            goto duplicate;
-    }
-    return 0;
-
-duplicate:
-    return js_parse_error(s, "duplicate parameter names not allowed in this context");
-}
-
-static JSAtom js_parse_destructing_var(JSParseState *s, int tok, int is_arg)
-{
-    JSAtom name;
-
-    if (!(s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved)
-    ||  ((s->cur_func->js_mode & JS_MODE_STRICT) &&
-         (s->token.u.ident.atom == JS_ATOM_eval || s->token.u.ident.atom == JS_ATOM_arguments))) {
-        js_parse_error(s, "invalid destructuring target");
-        return JS_ATOM_NULL;
-    }
-    name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
-    if (is_arg && js_parse_check_duplicate_parameter(s, name))
-        goto fail;
-    if (next_token(s))
-        goto fail;
-
-    return name;
-fail:
-    JS_FreeAtom(s->ctx, name);
-    return JS_ATOM_NULL;
-}
-
-static int js_parse_destructing_element(JSParseState *s, int tok, int is_arg,
-                                        int hasval, int has_ellipsis,
-                                        BOOL allow_initializer)
-{
-    int label_parse, label_assign, label_done, label_lvalue, depth_lvalue;
-    int start_addr, assign_addr;
-    JSAtom prop_name, var_name;
-    int opcode, scope, tok1, skip_bits;
-
-    if (has_ellipsis < 0) {
-        /* pre-parse destructuration target for spread detection */
-        js_parse_skip_parens_token(s, &skip_bits, FALSE);
-        has_ellipsis = skip_bits & SKIP_HAS_ELLIPSIS;
-    }
-
-    label_parse = new_label(s);
-    label_assign = new_label(s);
-
-    start_addr = s->cur_func->byte_code.size;
-    if (hasval) {
-        /* consume value from the stack */
-        emit_op(s, OP_dup);
-        emit_op(s, OP_undefined);
-        emit_op(s, OP_strict_eq);
-        emit_goto(s, OP_if_true, label_parse);
-        emit_label(s, label_assign);
-    } else {
-        emit_goto(s, OP_goto, label_parse);
-        emit_label(s, label_assign);
-        /* leave value on the stack */
-        emit_op(s, OP_dup);
-    }
-    assign_addr = s->cur_func->byte_code.size;
-    if (s->token.val == '{') {
-        if (next_token(s))
-            return -1;
-        /* throw an exception if the value cannot be converted to an object */
-        emit_op(s, OP_to_object);
-        if (has_ellipsis) {
-            /* add excludeList on stack just below src object */
-            emit_op(s, OP_object);
-            emit_op(s, OP_swap);
-        }
-        while (s->token.val != '}') {
-            int prop_type;
-            if (s->token.val == TOK_ELLIPSIS) {
-                if (!has_ellipsis) {
-                    JS_ThrowInternalError(s->ctx, "unexpected ellipsis token");
-                    return -1;
-                }
-                if (next_token(s))
-                    return -1;
-                if (tok) {
-                    var_name = js_parse_destructing_var(s, tok, is_arg);
-                    if (var_name == JS_ATOM_NULL)
-                        return -1;
-                    opcode = OP_scope_get_var;
-                    scope = s->cur_func->scope_level;
-                    label_lvalue = -1;
-                    depth_lvalue = 0;
-                } else {
-                    if (js_parse_postfix_expr(s, TRUE))
-                        return -1;
-
-                    if (get_lvalue(s, &opcode, &scope, &var_name,
-                                   &label_lvalue, &depth_lvalue, FALSE, '{'))
-                        return -1;
-                }
-                if (s->token.val != '}') {
-                    js_parse_error(s, "assignment rest property must be last");
-                    goto var_error;
-                }
-                emit_op(s, OP_object);  /* target */
-                emit_op(s, OP_copy_data_properties);
-                emit_u8(s, 0 | ((depth_lvalue + 1) << 2) | ((depth_lvalue + 2) << 5));
-                goto set_val;
-            }
-            prop_type = js_parse_property_name(s, &prop_name, FALSE, TRUE, FALSE);
-            if (prop_type < 0)
-                return -1;
-            var_name = JS_ATOM_NULL;
-            opcode = OP_scope_get_var;
-            scope = s->cur_func->scope_level;
-            label_lvalue = -1;
-            depth_lvalue = 0;
-            if (prop_type == PROP_TYPE_IDENT) {
-                if (next_token(s))
-                    goto prop_error;
-                if ((s->token.val == '[' || s->token.val == '{')
-                    &&  ((tok1 = js_parse_skip_parens_token(s, &skip_bits, FALSE)) == ',' ||
-                         tok1 == '=' || tok1 == '}')) {
-                    if (prop_name == JS_ATOM_NULL) {
-                        /* computed property name on stack */
-                        if (has_ellipsis) {
-                            /* define the property in excludeList */
-                            emit_op(s, OP_to_propkey); /* avoid calling ToString twice */
-                            emit_op(s, OP_perm3); /* TOS: src excludeList prop */
-                            emit_op(s, OP_null); /* TOS: src excludeList prop null */
-                            emit_op(s, OP_define_array_el); /* TOS: src excludeList prop */
-                            emit_op(s, OP_perm3); /* TOS: excludeList src prop */
-                        }
-                        /* get the computed property from the source object */
-                        emit_op(s, OP_get_array_el2);
-                    } else {
-                        /* named property */
-                        if (has_ellipsis) {
-                            /* define the property in excludeList */
-                            emit_op(s, OP_swap); /* TOS: src excludeList */
-                            emit_op(s, OP_null); /* TOS: src excludeList null */
-                            emit_op(s, OP_define_field); /* TOS: src excludeList */
-                            emit_atom(s, prop_name);
-                            emit_op(s, OP_swap); /* TOS: excludeList src */
-                        }
-                        /* get the named property from the source object */
-                        emit_op(s, OP_get_field2);
-                        emit_u32(s, prop_name);
-                    }
-                    if (js_parse_destructing_element(s, tok, is_arg, TRUE, -1, TRUE))
-                        return -1;
-                    if (s->token.val == '}')
-                        break;
-                    /* accept a trailing comma before the '}' */
-                    if (js_parse_expect(s, ','))
-                        return -1;
-                    continue;
-                }
-                if (prop_name == JS_ATOM_NULL) {
-                    emit_op(s, OP_to_propkey2);
-                    if (has_ellipsis) {
-                        /* define the property in excludeList */
-                        emit_op(s, OP_perm3);
-                        emit_op(s, OP_null);
-                        emit_op(s, OP_define_array_el);
-                        emit_op(s, OP_perm3);
-                    }
-                    /* source prop -- source source prop */
-                    emit_op(s, OP_dup1);
-                } else {
-                    if (has_ellipsis) {
-                        /* define the property in excludeList */
-                        emit_op(s, OP_swap);
-                        emit_op(s, OP_null);
-                        emit_op(s, OP_define_field);
-                        emit_atom(s, prop_name);
-                        emit_op(s, OP_swap);
-                    }
-                    /* source -- source source */
-                    emit_op(s, OP_dup);
-                }
-                if (tok) {
-                    var_name = js_parse_destructing_var(s, tok, is_arg);
-                    if (var_name == JS_ATOM_NULL)
-                        goto prop_error;
-                } else {
-                    if (js_parse_postfix_expr(s, TRUE))
-                        goto prop_error;
-                lvalue:
-                    if (get_lvalue(s, &opcode, &scope, &var_name,
-                                   &label_lvalue, &depth_lvalue, FALSE, '{'))
-                        goto prop_error;
-                    /* swap ref and lvalue object if any */
-                    if (prop_name == JS_ATOM_NULL) {
-                        switch(depth_lvalue) {
-                        case 1:
-                            /* source prop x -> x source prop */
-                            emit_op(s, OP_rot3r);
-                            break;
-                        case 2:
-                            /* source prop x y -> x y source prop */
-                            emit_op(s, OP_swap2);   /* t p2 s p1 */
-                            break;
-                        case 3:
-                            /* source prop x y z -> x y z source prop */
-                            emit_op(s, OP_rot5l);
-                            emit_op(s, OP_rot5l);
-                            break;
-                        }
-                    } else {
-                        switch(depth_lvalue) {
-                        case 1:
-                            /* source x -> x source */
-                            emit_op(s, OP_swap);
-                            break;
-                        case 2:
-                            /* source x y -> x y source */
-                            emit_op(s, OP_rot3l);
-                            break;
-                        case 3:
-                            /* source x y z -> x y z source */
-                            emit_op(s, OP_rot4l);
-                            break;
-                        }
-                    }
-                }
-                if (prop_name == JS_ATOM_NULL) {
-                    /* computed property name on stack */
-                    /* XXX: should have OP_get_array_el2x with depth */
-                    /* source prop -- val */
-                    emit_op(s, OP_get_array_el);
-                } else {
-                    /* named property */
-                    /* XXX: should have OP_get_field2x with depth */
-                    /* source -- val */
-                    emit_op(s, OP_get_field);
-                    emit_u32(s, prop_name);
-                }
-            } else {
-                /* prop_type = PROP_TYPE_VAR, cannot be a computed property */
-                if (is_arg && js_parse_check_duplicate_parameter(s, prop_name))
-                    goto prop_error;
-                if ((s->cur_func->js_mode & JS_MODE_STRICT) &&
-                    (prop_name == JS_ATOM_eval || prop_name == JS_ATOM_arguments)) {
-                    js_parse_error(s, "invalid destructuring target");
-                    goto prop_error;
-                }
-                if (has_ellipsis) {
-                    /* define the property in excludeList */
-                    emit_op(s, OP_swap);
-                    emit_op(s, OP_null);
-                    emit_op(s, OP_define_field);
-                    emit_atom(s, prop_name);
-                    emit_op(s, OP_swap);
-                }
-                if (!tok || tok == TOK_VAR) {
-                    /* generate reference */
-                    /* source -- source source */
-                    emit_op(s, OP_dup);
-                    emit_op(s, OP_scope_get_var);
-                    emit_atom(s, prop_name);
-                    emit_u16(s, s->cur_func->scope_level);
-                    goto lvalue;
-                }
-                var_name = JS_DupAtom(s->ctx, prop_name);
-                /* source -- source val */
-                emit_op(s, OP_get_field2);
-                emit_u32(s, prop_name);
-            }
-        set_val:
-            if (tok) {
-                if (js_define_var(s, var_name, tok))
-                    goto var_error;
-                scope = s->cur_func->scope_level;
-            }
-            if (s->token.val == '=') {  /* handle optional default value */
-                int label_hasval;
-                emit_op(s, OP_dup);
-                emit_op(s, OP_undefined);
-                emit_op(s, OP_strict_eq);
-                label_hasval = emit_goto(s, OP_if_false, -1);
-                if (next_token(s))
-                    goto var_error;
-                emit_op(s, OP_drop);
-                if (js_parse_assign_expr(s, TRUE))
-                    goto var_error;
-                if (opcode == OP_scope_get_var || opcode == OP_get_ref_value)
-                    set_object_name(s, var_name);
-                emit_label(s, label_hasval);
-            }
-            /* store value into lvalue object */
-            put_lvalue_nokeep(s, opcode, scope, var_name, label_lvalue, tok);
-            if (s->token.val == '}')
-                break;
-            /* accept a trailing comma before the '}' */
-            if (js_parse_expect(s, ','))
-                return -1;
-        }
-        /* drop the source object */
-        emit_op(s, OP_drop);
-        if (has_ellipsis) {
-            emit_op(s, OP_drop); /* pop excludeList */
-        }
-        if (next_token(s))
-            return -1;
-    } else if (s->token.val == '[') {
-        BOOL has_spread;
-        int enum_depth;
-        BlockEnv block_env;
-
-        if (next_token(s))
-            return -1;
-        /* the block environment is only needed in generators in case
-           'yield' triggers a 'return' */
-        push_break_entry(s->cur_func, &block_env,
-                         JS_ATOM_NULL, -1, -1, 2);
-        block_env.has_iterator = TRUE;
-        emit_op(s, OP_for_of_start);
-        has_spread = FALSE;
-        while (s->token.val != ']') {
-            /* get the next value */
-            if (s->token.val == TOK_ELLIPSIS) {
-                if (next_token(s))
-                    return -1;
-                if (s->token.val == ',' || s->token.val == ']')
-                    return js_parse_error(s, "missing binding pattern...");
-                has_spread = TRUE;
-            }
-            if (s->token.val == ',') {
-                /* do nothing, skip the value, has_spread is false */
-                emit_op(s, OP_for_of_next);
-                emit_u8(s, 0);
-                emit_op(s, OP_drop);
-                emit_op(s, OP_drop);
-            } else if ((s->token.val == '[' || s->token.val == '{')
-                   &&  ((tok1 = js_parse_skip_parens_token(s, &skip_bits, FALSE)) == ',' ||
-                        tok1 == '=' || tok1 == ']')) {
-                if (has_spread) {
-                    if (tok1 == '=')
-                        return js_parse_error(s, "rest element cannot have a default value");
-                    js_emit_spread_code(s, 0);
-                } else {
-                    emit_op(s, OP_for_of_next);
-                    emit_u8(s, 0);
-                    emit_op(s, OP_drop);
-                }
-                if (js_parse_destructing_element(s, tok, is_arg, TRUE, skip_bits & SKIP_HAS_ELLIPSIS, TRUE))
-                    return -1;
-            } else {
-                var_name = JS_ATOM_NULL;
-                enum_depth = 0;
-                if (tok) {
-                    var_name = js_parse_destructing_var(s, tok, is_arg);
-                    if (var_name == JS_ATOM_NULL)
-                        goto var_error;
-                    if (js_define_var(s, var_name, tok))
-                        goto var_error;
-                    opcode = OP_scope_get_var;
-                    scope = s->cur_func->scope_level;
-                } else {
-                    if (js_parse_postfix_expr(s, TRUE))
-                        return -1;
-                    if (get_lvalue(s, &opcode, &scope, &var_name,
-                                   &label_lvalue, &enum_depth, FALSE, '[')) {
-                        return -1;
-                    }
-                }
-                if (has_spread) {
-                    js_emit_spread_code(s, enum_depth);
-                } else {
-                    emit_op(s, OP_for_of_next);
-                    emit_u8(s, enum_depth);
-                    emit_op(s, OP_drop);
-                }
-                if (s->token.val == '=' && !has_spread) {
-                    /* handle optional default value */
-                    int label_hasval;
-                    emit_op(s, OP_dup);
-                    emit_op(s, OP_undefined);
-                    emit_op(s, OP_strict_eq);
-                    label_hasval = emit_goto(s, OP_if_false, -1);
-                    if (next_token(s))
-                        goto var_error;
-                    emit_op(s, OP_drop);
-                    if (js_parse_assign_expr(s, TRUE))
-                        goto var_error;
-                    if (opcode == OP_scope_get_var || opcode == OP_get_ref_value)
-                        set_object_name(s, var_name);
-                    emit_label(s, label_hasval);
-                }
-                /* store value into lvalue object */
-                put_lvalue_nokeep(s, opcode, scope, var_name,
-                                  label_lvalue, tok);
-            }
-            if (s->token.val == ']')
-                break;
-            if (has_spread)
-                return js_parse_error(s, "rest element must be the last one");
-            /* accept a trailing comma before the ']' */
-            if (js_parse_expect(s, ','))
-                return -1;
-        }
-        /* close iterator object:
-           if completed, enum_obj has been replaced by undefined */
-        emit_op(s, OP_iterator_close);
-        pop_break_entry(s->cur_func);
-        if (next_token(s))
-            return -1;
-    } else {
-        return js_parse_error(s, "invalid assignment syntax");
-    }
-    if (s->token.val == '=' && allow_initializer) {
-        label_done = emit_goto(s, OP_goto, -1);
-        if (next_token(s))
-            return -1;
-        emit_label(s, label_parse);
-        if (hasval)
-            emit_op(s, OP_drop);
-        if (js_parse_assign_expr(s, TRUE))
-            return -1;
-        emit_goto(s, OP_goto, label_assign);
-        emit_label(s, label_done);
-    } else {
-        assert(hasval);
-        /* remove test and decrement label ref count */
-        memset(s->cur_func->byte_code.buf + start_addr, OP_nop,
-               assign_addr - start_addr);
-        s->cur_func->label_slots[label_parse].ref_count--;
-    }
-    return 0;
-
- prop_error:
-    JS_FreeAtom(s->ctx, prop_name);
- var_error:
-    JS_FreeAtom(s->ctx, var_name);
-    return -1;
-}
-
-typedef enum FuncCallType {
-    FUNC_CALL_NORMAL,
-    FUNC_CALL_NEW,
-    FUNC_CALL_SUPER_CTOR,
-    FUNC_CALL_TEMPLATE,
-} FuncCallType;
-
-static __exception int js_parse_postfix_expr(JSParseState *s, BOOL accept_lparen)
-{
-    FuncCallType call_type;
-
-    call_type = FUNC_CALL_NORMAL;
-    switch(s->token.val) {
-    case TOK_NUMBER:
-        {
-            JSValue val;
-            val = s->token.u.num.val;
-
-            if (JS_VALUE_GET_TAG(val) == JS_TAG_INT) {
-                emit_op(s, OP_push_i32);
-                emit_u32(s, JS_VALUE_GET_INT(val));
-            } else
-#ifdef CONFIG_BIGNUM
-            if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_FLOAT) {
-                bf_t r_s, *r = &r_s;
-                slimb_t e;
-                int ret;
-
-                /* need a runtime conversion */
-                /* XXX: could add a cache and/or do it once at
-                   the start of the function */
-                if (emit_push_const(s, val, 0) < 0)
-                    return -1;
-                e = s->token.u.num.exponent;
-                if (e == (int32_t)e) {
-                    emit_op(s, OP_push_i32);
-                    emit_u32(s, e);
-                } else {
-                    bf_init(s->ctx->bf_ctx, r);
-                    bf_set_si(r, e);
-                    val = JS_NewBigInt(s->ctx, r);
-                    ret = emit_push_const(s, val, 0);
-                    JS_FreeValue(s->ctx, val);
-                    if (ret < 0)
-                        return -1;
-                }
-                emit_op(s, OP_mul_pow10);
-            } else
-#endif
-            {
-                if (emit_push_const(s, val, 0) < 0)
-                    return -1;
-            }
-        }
-        if (next_token(s))
-            return -1;
-        break;
-    case TOK_TEMPLATE:
-        if (js_parse_template(s, 0, NULL))
-            return -1;
-        break;
-    case TOK_STRING:
-        if (emit_push_const(s, s->token.u.str.str, 1))
-            return -1;
-        if (next_token(s))
-            return -1;
-        break;
-        
-    case TOK_DIV_ASSIGN:
-        s->buf_ptr -= 2;
-        goto parse_regexp;
-    case '/':
-        s->buf_ptr--;
-    parse_regexp:
-        {
-            JSValue str;
-            int ret;
-            if (!s->ctx->compile_regexp)
-                return js_parse_error(s, "RegExp are not supported");
-            /* the previous token is '/' or '/=', so no need to free */
-            if (js_parse_regexp(s))
-                return -1;
-            ret = emit_push_const(s, s->token.u.regexp.body, 0);
-            str = s->ctx->compile_regexp(s->ctx, s->token.u.regexp.body,
-                                         s->token.u.regexp.flags);
-            if (JS_IsException(str)) {
-                /* add the line number info */
-                build_backtrace(s->ctx, s->ctx->current_exception,
-                                s->filename, s->token.line_num, NULL);
-                return -1;
-            }
-            ret = emit_push_const(s, str, 0);
-            JS_FreeValue(s->ctx, str);
-            if (ret)
-                return -1;
-            /* we use a specific opcode to be sure the correct
-               function is called (otherwise the bytecode would have
-               to be verified by the RegExp constructor) */
-            emit_op(s, OP_regexp);
-            if (next_token(s))
-                return -1;
-        }
-        break;
-    case '(':
-        if (js_parse_skip_parens_token(s, NULL, TRUE) == TOK_ARROW) {
-            if (js_parse_function_decl(s, JS_PARSE_FUNC_ARROW,
-                                       JS_FUNC_NORMAL, JS_ATOM_NULL,
-                                       s->token.ptr, s->token.line_num))
-                return -1;
-        } else {
-            if (js_parse_expr_paren(s))
-                return -1;
-        }
-        break;
-    case TOK_FUNCTION:
-        if (js_parse_function_decl(s, JS_PARSE_FUNC_EXPR,
-                                   JS_FUNC_NORMAL, JS_ATOM_NULL,
-                                   s->token.ptr, s->token.line_num))
-            return -1;
-        break;
-    case TOK_CLASS:
-        if (js_parse_class(s, TRUE, JS_PARSE_EXPORT_NONE))
-            return -1;
-        break;
-    case TOK_NULL:
-        if (next_token(s))
-            return -1;
-        emit_op(s, OP_null);
-        break;
-    case TOK_THIS:
-        if (next_token(s))
-            return -1;
-        emit_op(s, OP_scope_get_var);
-        emit_atom(s, JS_ATOM_this);
-        emit_u16(s, 0);
-        break;
-    case TOK_FALSE:
-        if (next_token(s))
-            return -1;
-        emit_op(s, OP_push_false);
-        break;
-    case TOK_TRUE:
-        if (next_token(s))
-            return -1;
-        emit_op(s, OP_push_true);
-        break;
-    case TOK_IDENT:
-        {
-            JSAtom name;
-            if (s->token.u.ident.is_reserved) {
-                return js_parse_error_reserved_identifier(s);
-            }
-            if (peek_token(s, TRUE) == TOK_ARROW) {
-                if (js_parse_function_decl(s, JS_PARSE_FUNC_ARROW,
-                                           JS_FUNC_NORMAL, JS_ATOM_NULL,
-                                           s->token.ptr, s->token.line_num))
-                    return -1;
-            } else if (token_is_pseudo_keyword(s, JS_ATOM_async) &&
-                       peek_token(s, TRUE) != '\n') {
-                const uint8_t *source_ptr;
-                int source_line_num;
-
-                source_ptr = s->token.ptr;
-                source_line_num = s->token.line_num;
-                if (next_token(s))
-                    return -1;
-                if (s->token.val == TOK_FUNCTION) {
-                    if (js_parse_function_decl(s, JS_PARSE_FUNC_EXPR,
-                                               JS_FUNC_ASYNC, JS_ATOM_NULL,
-                                               source_ptr, source_line_num))
-                        return -1;
-                } else if ((s->token.val == '(' &&
-                            js_parse_skip_parens_token(s, NULL, TRUE) == TOK_ARROW) ||
-                           (s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved &&
-                            peek_token(s, TRUE) == TOK_ARROW)) {
-                    if (js_parse_function_decl(s, JS_PARSE_FUNC_ARROW,
-                                               JS_FUNC_ASYNC, JS_ATOM_NULL,
-                                               source_ptr, source_line_num))
-                        return -1;
-                } else {
-                    name = JS_DupAtom(s->ctx, JS_ATOM_async);
-                    goto do_get_var;
-                }
-            } else {
-                if (s->token.u.ident.atom == JS_ATOM_arguments &&
-                    !s->cur_func->arguments_allowed) {
-                    js_parse_error(s, "'arguments' identifier is not allowed in class field initializer");
-                    return -1;
-                }
-                name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
-                if (next_token(s))  /* update line number before emitting code */
-                    return -1;
-            do_get_var:
-                emit_op(s, OP_scope_get_var);
-                emit_u32(s, name);
-                emit_u16(s, s->cur_func->scope_level);
-            }
-        }
-        break;
-    case '{':
-    case '[':
-        {
-            int skip_bits;
-            if (js_parse_skip_parens_token(s, &skip_bits, FALSE) == '=') {
-                if (js_parse_destructing_element(s, 0, 0, FALSE, skip_bits & SKIP_HAS_ELLIPSIS, TRUE))
-                    return -1;
-            } else {
-                if (s->token.val == '{') {
-                    if (js_parse_object_literal(s))
-                        return -1;
-                } else {
-                    if (js_parse_array_literal(s))
-                        return -1;
-                }
-            }
-        }
-        break;
-    case TOK_NEW:
-        if (next_token(s))
-            return -1;
-        if (s->token.val == '.') {
-            if (next_token(s))
-                return -1;
-            if (!token_is_pseudo_keyword(s, JS_ATOM_target))
-                return js_parse_error(s, "expecting target");
-            if (!s->cur_func->new_target_allowed)
-                return js_parse_error(s, "new.target only allowed within functions");
-            if (next_token(s))
-                return -1;
-            emit_op(s, OP_scope_get_var);
-            emit_atom(s, JS_ATOM_new_target);
-            emit_u16(s, 0);
-        } else {
-            if (js_parse_postfix_expr(s, FALSE))
-                return -1;
-            accept_lparen = TRUE;
-            if (s->token.val != '(') {
-                /* new operator on an object */
-                emit_op(s, OP_dup);
-                emit_op(s, OP_call_constructor);
-                emit_u16(s, 0);
-            } else {
-                call_type = FUNC_CALL_NEW;
-            }
-        }
-        break;
-    case TOK_SUPER:
-        if (next_token(s))
-            return -1;
-        if (s->token.val == '(') {
-            if (!s->cur_func->super_call_allowed)
-                return js_parse_error(s, "super() is only valid in a derived class constructor");
-            call_type = FUNC_CALL_SUPER_CTOR;
-        } else if (s->token.val == '.' || s->token.val == '[') {
-            if (!s->cur_func->super_allowed)
-                return js_parse_error(s, "'super' is only valid in a method");
-            emit_op(s, OP_scope_get_var);
-            emit_atom(s, JS_ATOM_this);
-            emit_u16(s, 0);
-            emit_op(s, OP_scope_get_var);
-            emit_atom(s, JS_ATOM_home_object);
-            emit_u16(s, 0);
-            emit_op(s, OP_get_super);
-        } else {
-            return js_parse_error(s, "invalid use of 'super'");
-        }
-        break;
-    case TOK_IMPORT:
-        if (!accept_lparen)
-            return js_parse_error(s, "invalid use of 'import'");
-        if (next_token(s))
-            return -1;
-        if (js_parse_expect(s, '('))
-            return -1;
-        if (js_parse_assign_expr(s, TRUE))
-            return -1;
-        if (js_parse_expect(s, ')'))
-            return -1;
-        emit_op(s, OP_import);
-        break;
-    default:
-        return js_parse_error(s, "unexpected token in expression: '%.*s'",
-                              (int)(s->buf_ptr - s->token.ptr), s->token.ptr);
-    }
-
-    for(;;) {
-        JSFunctionDef *fd = s->cur_func;
-
-        if (s->token.val == TOK_TEMPLATE && call_type == FUNC_CALL_NORMAL) {
-            call_type = FUNC_CALL_TEMPLATE;
-            goto parse_func_call;
-        }
-        if (s->token.val == '(' && accept_lparen) {
-            int opcode;
-            int arg_count;
-
-            /* function call */
-            if (next_token(s))
-                return -1;
-
-            if (call_type == FUNC_CALL_NORMAL) {
-            parse_func_call:
-                switch(opcode = get_prev_opcode(fd)) {
-                case OP_get_field:
-                    /* keep the object on the stack */
-                    fd->byte_code.buf[fd->last_opcode_pos] = OP_get_field2;
-                    break;
-                case OP_scope_get_private_field:
-                    /* keep the object on the stack */
-                    fd->byte_code.buf[fd->last_opcode_pos] = OP_scope_get_private_field2;
-                    break;
-                case OP_get_array_el:
-                    /* keep the object on the stack */
-                    fd->byte_code.buf[fd->last_opcode_pos] = OP_get_array_el2;
-                    break;
-                case OP_scope_get_var:
-                    {
-                        JSAtom name;
-                        int scope;
-                        name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
-                        scope = get_u16(fd->byte_code.buf + fd->last_opcode_pos + 5);
-                        if (name == JS_ATOM_eval && call_type == FUNC_CALL_NORMAL) {
-                            /* direct 'eval' */
-                            JS_FreeAtom(s->ctx, name);
-                            fd->byte_code.size = fd->last_opcode_pos;
-                            fd->last_opcode_pos = -1;
-                            opcode = OP_eval;
-                        } else {
-                            /* verify if function name resolves to a simple
-                               get_loc/get_arg: a function call inside a `with`
-                               statement can resolve to a method call of the
-                               `with` context object
-                             */
-                            /* XXX: always generate the OP_scope_get_ref
-                               and remove it in variable resolution
-                               pass ? */
-                            if (has_with_scope(fd, scope)) {
-                                opcode = OP_scope_get_ref;
-                                fd->byte_code.buf[fd->last_opcode_pos] = opcode;
-                            }
-                        }
-                    }
-                    break;
-                case OP_get_super_value:
-                    fd->byte_code.buf[fd->last_opcode_pos] = OP_get_array_el;
-                    /* on stack: this func_obj */
-                    opcode = OP_get_array_el;
-                    break;
-                default:
-                    opcode = OP_invalid;
-                    break;
-                }
-            } else {
-                opcode = OP_invalid;
-            }
-
-            if (call_type == FUNC_CALL_TEMPLATE) {
-                if (js_parse_template(s, 1, &arg_count))
-                    return -1;
-                goto emit_func_call;
-            } else if (call_type == FUNC_CALL_SUPER_CTOR) {
-                emit_op(s, OP_scope_get_var);
-                emit_atom(s, JS_ATOM_this_active_func);
-                emit_u16(s, 0);
-
-                emit_op(s, OP_get_super_ctor);
-
-                emit_op(s, OP_scope_get_var);
-                emit_atom(s, JS_ATOM_new_target);
-                emit_u16(s, 0);
-            } else if (call_type == FUNC_CALL_NEW) {
-                emit_op(s, OP_dup); /* new.target = function */
-            }
-
-            /* parse arguments */
-            arg_count = 0;
-            while (s->token.val != ')') {
-                if (arg_count >= 65535) {
-                    return js_parse_error(s, "Too many call arguments");
-                }
-                if (s->token.val == TOK_ELLIPSIS)
-                    break;
-                if (js_parse_assign_expr(s, TRUE))
-                    return -1;
-                arg_count++;
-                if (s->token.val == ')')
-                    break;
-                /* accept a trailing comma before the ')' */
-                if (js_parse_expect(s, ','))
-                    return -1;
-            }
-            if (s->token.val == TOK_ELLIPSIS) {
-                emit_op(s, OP_array_from);
-                emit_u16(s, arg_count);
-                emit_op(s, OP_push_i32);
-                emit_u32(s, arg_count);
-
-                /* on stack: array idx */
-                while (s->token.val != ')') {
-                    if (s->token.val == TOK_ELLIPSIS) {
-                        if (next_token(s))
-                            return -1;
-                        if (js_parse_assign_expr(s, TRUE))
-                            return -1;
-#if 1
-                        /* XXX: could pass is_last indicator? */
-                        emit_op(s, OP_append);
-#else
-                        int label_next, label_done;
-                        label_next = new_label(s);
-                        label_done = new_label(s);
-                        /* push enumerate object below array/idx pair */
-                        emit_op(s, OP_for_of_start);
-                        emit_op(s, OP_rot5l);
-                        emit_op(s, OP_rot5l);
-                        emit_label(s, label_next);
-                        /* on stack: enum_rec array idx */
-                        emit_op(s, OP_for_of_next);
-                        emit_u8(s, 2);
-                        emit_goto(s, OP_if_true, label_done);
-                        /* append element */
-                        /* enum_rec array idx val -> enum_rec array new_idx */
-                        emit_op(s, OP_define_array_el);
-                        emit_op(s, OP_inc);
-                        emit_goto(s, OP_goto, label_next);
-                        emit_label(s, label_done);
-                        /* close enumeration, drop enum_rec and idx */
-                        emit_op(s, OP_drop); /* drop undef */
-                        emit_op(s, OP_nip1); /* drop enum_rec */
-                        emit_op(s, OP_nip1);
-                        emit_op(s, OP_nip1);
-#endif
-                    } else {
-                        if (js_parse_assign_expr(s, TRUE))
-                            return -1;
-                        /* array idx val */
-                        emit_op(s, OP_define_array_el);
-                        emit_op(s, OP_inc);
-                    }
-                    if (s->token.val == ')')
-                        break;
-                    /* accept a trailing comma before the ')' */
-                    if (js_parse_expect(s, ','))
-                        return -1;
-                }
-                if (next_token(s))
-                    return -1;
-                /* drop the index */
-                emit_op(s, OP_drop);
-
-                /* apply function call */
-                switch(opcode) {
-                case OP_get_field:
-                case OP_scope_get_private_field:
-                case OP_get_array_el:
-                case OP_scope_get_ref:
-                    /* obj func array -> func obj array */
-                    emit_op(s, OP_perm3);
-                    emit_op(s, OP_apply);
-                    emit_u16(s, call_type == FUNC_CALL_NEW);
-                    break;
-                case OP_eval:
-                    /* eval needs a single argument */
-                    emit_op(s, OP_get_field);
-                    emit_atom(s, __JS_AtomFromUInt32(0));
-                    emit_op(s, OP_eval);
-                    emit_u16(s, fd->scope_level);
-                    fd->has_eval_call = TRUE;
-                    break;
-                default:
-                    if (call_type == FUNC_CALL_SUPER_CTOR) {
-                        emit_op(s, OP_apply);
-                        emit_u16(s, 1);
-                        /* set the 'this' value */
-                        emit_op(s, OP_dup);
-                        emit_op(s, OP_scope_put_var_init);
-                        emit_atom(s, JS_ATOM_this);
-                        emit_u16(s, 0);
-
-                        emit_class_field_init(s);
-                    } else if (call_type == FUNC_CALL_NEW) {
-                        /* obj func array -> func obj array */
-                        emit_op(s, OP_perm3);
-                        emit_op(s, OP_apply);
-                        emit_u16(s, 1);
-                    } else {
-                        /* func array -> func undef array */
-                        emit_op(s, OP_undefined);
-                        emit_op(s, OP_swap);
-                        emit_op(s, OP_apply);
-                        emit_u16(s, 0);
-                    }
-                    break;
-                }
-            } else {
-                if (next_token(s))
-                    return -1;
-            emit_func_call:
-                switch(opcode) {
-                case OP_get_field:
-                case OP_scope_get_private_field:
-                case OP_get_array_el:
-                case OP_scope_get_ref:
-                    emit_op(s, OP_call_method);
-                    emit_u16(s, arg_count);
-                    break;
-                case OP_eval:
-                    /* eval needs a single argument */
-                    if (arg_count == 0) {
-                        /* no actual eval call is needed? */
-                        emit_op(s, OP_undefined);
-                    } else {
-                        int i;
-                        /* pop extra arguments. Contrary to ECMA spec,
-                           browsers seem to evaluate extra arguments
-                           to direct eval */
-                        for(i = 1; i < arg_count; i++)
-                            emit_op(s, OP_drop);
-                        emit_op(s, OP_eval);
-                        emit_u16(s, fd->scope_level);
-                        fd->has_eval_call = TRUE;
-                    }
-                    break;
-                default:
-                    if (call_type == FUNC_CALL_SUPER_CTOR) {
-                        emit_op(s, OP_call_constructor);
-                        emit_u16(s, arg_count);
-
-                        /* set the 'this' value */
-                        emit_op(s, OP_dup);
-                        emit_op(s, OP_scope_put_var_init);
-                        emit_atom(s, JS_ATOM_this);
-                        emit_u16(s, 0);
-
-                        emit_class_field_init(s);
-                    } else if (call_type == FUNC_CALL_NEW) {
-                        emit_op(s, OP_call_constructor);
-                        emit_u16(s, arg_count);
-                    } else {
-                        emit_op(s, OP_call);
-                        emit_u16(s, arg_count);
-                    }
-                    break;
-                }
-            }
-            call_type = FUNC_CALL_NORMAL;
-        } else if (s->token.val == '.') {
-            if (next_token(s))
-                return -1;
-            if (s->token.val == TOK_PRIVATE_NAME) {
-                /* private class field */
-                if (get_prev_opcode(fd) == OP_get_super) {
-                    return js_parse_error(s, "private class field forbidden after super");
-                }
-                emit_op(s, OP_scope_get_private_field);
-                emit_atom(s, s->token.u.ident.atom);
-                emit_u16(s, s->cur_func->scope_level);
-            } else {
-                if (!token_is_ident(s->token.val)) {
-                    return js_parse_error(s, "expecting field name");
-                }
-                if (get_prev_opcode(fd) == OP_get_super) {
-                    JSValue val;
-                    int ret;
-                    val = JS_AtomToValue(s->ctx, s->token.u.ident.atom);
-                    ret = emit_push_const(s, val, 1);
-                    JS_FreeValue(s->ctx, val);
-                    if (ret)
-                        return -1;
-                    emit_op(s, OP_get_super_value);
-                } else {
-                    emit_op(s, OP_get_field);
-                    emit_atom(s, s->token.u.ident.atom);
-                }
-            }
-            if (next_token(s))
-                return -1;
-        } else if (s->token.val == '[') {
-            int prev_op;
-            if (next_token(s))
-                return -1;
-            prev_op = get_prev_opcode(fd);
-            if (js_parse_expr(s))
-                return -1;
-            if (js_parse_expect(s, ']'))
-                return -1;
-            if (prev_op == OP_get_super) {
-                emit_op(s, OP_get_super_value);
-            } else {
-                emit_op(s, OP_get_array_el);
-            }
-        } else if (!s->got_lf && (s->token.val == TOK_DEC || s->token.val == TOK_INC)) {
-            int opcode, op, scope, label;
-            JSAtom name;
-            op = s->token.val;
-            if (get_lvalue(s, &opcode, &scope, &name, &label, NULL, TRUE, op))
-                return -1;
-            emit_op(s, OP_post_dec + op - TOK_DEC);
-            put_lvalue(s, opcode, scope, name, label, TRUE);
-            if (next_token(s))
-                return -1;
-        } else {
-            break;
-        }
-    }
-    return 0;
-}
-
-static __exception int js_parse_delete(JSParseState *s)
-{
-    JSFunctionDef *fd = s->cur_func;
-    JSAtom name;
-    int opcode;
-
-    if (next_token(s))
-        return -1;
-    if (js_parse_unary(s, -1))
-        return -1;
-    switch(opcode = get_prev_opcode(fd)) {
-    case OP_get_field:
-        {
-            JSValue val;
-            int ret;
-
-            name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
-            fd->byte_code.size = fd->last_opcode_pos;
-            fd->last_opcode_pos = -1;
-            val = JS_AtomToValue(s->ctx, name);
-            ret = emit_push_const(s, val, 1);
-            JS_FreeValue(s->ctx, val);
-            JS_FreeAtom(s->ctx, name);
-            if (ret)
-                return ret;
-        }
-        goto do_delete;
-    case OP_get_array_el:
-        fd->byte_code.size = fd->last_opcode_pos;
-        fd->last_opcode_pos = -1;
-    do_delete:
-        emit_op(s, OP_delete);
-        break;
-    case OP_scope_get_var:
-        /* 'delete this': this is not a reference */
-        name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
-        if (name == JS_ATOM_this || name == JS_ATOM_new_target)
-            goto ret_true;
-        if (fd->js_mode & JS_MODE_STRICT) {
-            return js_parse_error(s, "cannot delete a direct reference in strict mode");
-        } else {
-            fd->byte_code.buf[fd->last_opcode_pos] = OP_scope_delete_var;
-        }
-        break;
-    case OP_scope_get_private_field:
-        return js_parse_error(s, "cannot delete a private class field");
-    default:
-    ret_true:
-        emit_op(s, OP_drop);
-        emit_op(s, OP_push_true);
-        break;
-    }
-    return 0;
-}
-
-static __exception int js_parse_unary(JSParseState *s, int exponentiation_flag)
-{
-    int op;
-
-    switch(s->token.val) {
-    case '+':
-    case '-':
-    case '!':
-    case '~':
-    case TOK_VOID:
-        op = s->token.val;
-        if (next_token(s))
-            return -1;
-        if (js_parse_unary(s, -1))
-            return -1;
-        switch(op) {
-        case '-':
-            emit_op(s, OP_neg);
-            break;
-        case '+':
-            emit_op(s, OP_plus);
-            break;
-        case '!':
-            emit_op(s, OP_lnot);
-            break;
-        case '~':
-            emit_op(s, OP_not);
-            break;
-        case TOK_VOID:
-            emit_op(s, OP_drop);
-            emit_op(s, OP_undefined);
-            break;
-        default:
-            abort();
-        }
-        exponentiation_flag = 0;
-        break;
-    case TOK_DEC:
-    case TOK_INC:
-        {
-            int opcode, op, scope, label;
-            JSAtom name;
-            op = s->token.val;
-            if (next_token(s))
-                return -1;
-            /* XXX: should parse LeftHandSideExpression */
-            if (js_parse_unary(s, 0))
-                return -1;
-            if (get_lvalue(s, &opcode, &scope, &name, &label, NULL, TRUE, op))
-                return -1;
-            emit_op(s, OP_dec + op - TOK_DEC);
-            put_lvalue(s, opcode, scope, name, label, FALSE);
-        }
-        break;
-    case TOK_TYPEOF:
-        {
-            JSFunctionDef *fd;
-            if (next_token(s))
-                return -1;
-            if (js_parse_unary(s, -1))
-                return -1;
-            /* reference access should not return an exception, so we
-               patch the get_var */
-            fd = s->cur_func;
-            if (get_prev_opcode(fd) == OP_scope_get_var) {
-                fd->byte_code.buf[fd->last_opcode_pos] = OP_scope_get_var_undef;
-            }
-            emit_op(s, OP_typeof);
-            exponentiation_flag = 0;
-        }
-        break;
-    case TOK_DELETE:
-        if (js_parse_delete(s))
-            return -1;
-        exponentiation_flag = 0;
-        break;
-    case TOK_AWAIT:
-        if (!(s->cur_func->func_kind & JS_FUNC_ASYNC))
-            return js_parse_error(s, "unexpected 'await' keyword");
-        if (!s->cur_func->in_function_body)
-            return js_parse_error(s, "await in default expression");
-        if (next_token(s))
-            return -1;
-        if (js_parse_unary(s, -1))
-            return -1;
-        emit_op(s, OP_await);
-        exponentiation_flag = 0;
-        break;
-    default:
-        if (js_parse_postfix_expr(s, TRUE))
-            return -1;
-        break;
-    }
-    if (exponentiation_flag) {
-#ifdef CONFIG_BIGNUM
-        if (s->token.val == TOK_POW || s->token.val == TOK_MATH_POW) {
-            /* Extended exponentiation syntax rules: we extend the ES7
-               grammar in order to have more intuitive semantics:
-               -2**2 evaluates to -4. */
-            if (!(s->cur_func->js_mode & JS_MODE_MATH)) {
-                if (exponentiation_flag < 0) {
-                    JS_ThrowSyntaxError(s->ctx, "unparenthesized unary expression can't appear on the left-hand side of '**'");
-                    return -1;
-                }
-            }
-            if (next_token(s))
-                return -1;
-            if (js_parse_unary(s, 1))
-                return -1;
-            if (s->cur_func->js_mode & JS_MODE_MATH)
-                emit_op(s, OP_math_pow);
-            else
-                emit_op(s, OP_pow);
-        }
-#else
-        if (s->token.val == TOK_POW) {
-            /* Strict ES7 exponentiation syntax rules: To solve
-               conficting semantics between different implementations
-               regarding the precedence of prefix operators and the
-               postifx exponential, ES7 specifies that -2**2 is a
-               syntax error. */
-            if (exponentiation_flag < 0) {
-                JS_ThrowSyntaxError(s->ctx, "unparenthesized unary expression can't appear on the left-hand side of '**'");
-                return -1;
-            }
-            if (next_token(s))
-                return -1;
-            if (js_parse_unary(s, 1))
-                return -1;
-            emit_op(s, OP_pow);
-        }
-#endif
-    }
-    return 0;
-}
-
-static __exception int js_parse_expr_binary(JSParseState *s, int level,
-                                            BOOL in_accepted)
-{
-    int op, opcode;
-
-    if (level == 0) {
-        return js_parse_unary(s, 1);
-    }
-    if (js_parse_expr_binary(s, level - 1, in_accepted))
-        return -1;
-    for(;;) {
-        op = s->token.val;
-        switch(level) {
-        case 1:
-            switch(op) {
-            case '*':
-                opcode = OP_mul;
-                break;
-            case '/':
-#ifdef CONFIG_BIGNUM
-                if (s->cur_func->js_mode & JS_MODE_MATH)
-                    opcode = OP_math_div;
-                else
-#endif
-                    opcode = OP_div;
-                break;
-            case '%':
-#ifdef CONFIG_BIGNUM
-                if (s->cur_func->js_mode & JS_MODE_MATH)
-                    opcode = OP_math_mod;
-                else
-#endif
-                    opcode = OP_mod;
-                break;
-            default:
-                return 0;
-            }
-            break;
-        case 2:
-            switch(op) {
-            case '+':
-                opcode = OP_add;
-                break;
-            case '-':
-                opcode = OP_sub;
-                break;
-            default:
-                return 0;
-            }
-            break;
-        case 3:
-            switch(op) {
-            case TOK_SHL:
-                opcode = OP_shl;
-                break;
-            case TOK_SAR:
-                opcode = OP_sar;
-                break;
-            case TOK_SHR:
-                opcode = OP_shr;
-                break;
-            default:
-                return 0;
-            }
-            break;
-        case 4:
-            switch(op) {
-            case '<':
-                opcode = OP_lt;
-                break;
-            case '>':
-                opcode = OP_gt;
-                break;
-            case TOK_LTE:
-                opcode = OP_lte;
-                break;
-            case TOK_GTE:
-                opcode = OP_gte;
-                break;
-            case TOK_INSTANCEOF:
-                opcode = OP_instanceof;
-                break;
-            case TOK_IN:
-                if (in_accepted) {
-                    opcode = OP_in;
-                } else {
-                    return 0;
-                }
-                break;
-            default:
-                return 0;
-            }
-            break;
-        case 5:
-            switch(op) {
-            case TOK_EQ:
-                opcode = OP_eq;
-                break;
-            case TOK_NEQ:
-                opcode = OP_neq;
-                break;
-            case TOK_STRICT_EQ:
-                opcode = OP_strict_eq;
-                break;
-            case TOK_STRICT_NEQ:
-                opcode = OP_strict_neq;
-                break;
-            default:
-                return 0;
-            }
-            break;
-        case 6:
-            switch(op) {
-            case '&':
-                opcode = OP_and;
-                break;
-            default:
-                return 0;
-            }
-            break;
-        case 7:
-            switch(op) {
-            case '^':
-                opcode = OP_xor;
-                break;
-            default:
-                return 0;
-            }
-            break;
-        case 8:
-            switch(op) {
-            case '|':
-                opcode = OP_or;
-                break;
-            default:
-                return 0;
-            }
-            break;
-        default:
-            abort();
-        }
-        if (next_token(s))
-            return -1;
-        if (js_parse_expr_binary(s, level - 1, in_accepted))
-            return -1;
-        emit_op(s, opcode);
-    }
-    return 0;
-}
-
-static __exception int js_parse_logical_and_or(JSParseState *s, int op,
-                                               BOOL in_accepted)
-{
-    int label1;
-
-    if (op == TOK_LAND) {
-        if (js_parse_expr_binary(s, 8, in_accepted))
-            return -1;
-    } else {
-        if (js_parse_logical_and_or(s, TOK_LAND, in_accepted))
-            return -1;
-    }
-    if (s->token.val == op) {
-        label1 = new_label(s);
-
-        for(;;) {
-            if (next_token(s))
-                return -1;
-            emit_op(s, OP_dup);
-            emit_goto(s, op == TOK_LAND ? OP_if_false : OP_if_true, label1);
-            emit_op(s, OP_drop);
-
-            if (op == TOK_LAND) {
-                if (js_parse_expr_binary(s, 8, in_accepted))
-                    return -1;
-            } else {
-                if (js_parse_logical_and_or(s, TOK_LAND, in_accepted))
-                    return -1;
-            }
-            if (s->token.val != op)
-                break;
-        }
-
-        emit_label(s, label1);
-    }
-    return 0;
-}
-
-static __exception int js_parse_cond_expr(JSParseState *s, BOOL in_accepted)
-{
-    int label1, label2;
-
-    if (js_parse_logical_and_or(s, TOK_LOR, in_accepted))
-        return -1;
-    if (s->token.val == '?') {
-        if (next_token(s))
-            return -1;
-        label1 = emit_goto(s, OP_if_false, -1);
-
-        if (js_parse_assign_expr(s, TRUE))
-            return -1;
-        if (js_parse_expect(s, ':'))
-            return -1;
-
-        label2 = emit_goto(s, OP_goto, -1);
-
-        emit_label(s, label1);
-
-        if (js_parse_assign_expr(s, in_accepted))
-            return -1;
-
-        emit_label(s, label2);
-    }
-    return 0;
-}
-
-static void emit_return(JSParseState *s, BOOL hasval);
-
-static __exception int js_parse_assign_expr(JSParseState *s, BOOL in_accepted)
-{
-    int opcode, op, scope;
-    JSAtom name0 = JS_ATOM_NULL;
-    JSAtom name;
-
-    if (s->token.val == TOK_YIELD) {
-        BOOL is_star = FALSE;
-        if (!(s->cur_func->func_kind & JS_FUNC_GENERATOR))
-            return js_parse_error(s, "unexpected 'yield' keyword");
-        if (!s->cur_func->in_function_body)
-            return js_parse_error(s, "yield in default expression");
-        if (next_token(s))
-            return -1;
-        /* XXX: is there a better method to detect 'yield' without
-           parameters ? */
-        if (s->token.val != ';' && s->token.val != ')' &&
-            s->token.val != ']' && s->token.val != '}' &&
-            s->token.val != ',' && s->token.val != ':' && !s->got_lf) {
-            if (s->token.val == '*') {
-                is_star = TRUE;
-                if (next_token(s))
-                    return -1;
-            }
-            if (js_parse_assign_expr(s, in_accepted))
-                return -1;
-        } else {
-            emit_op(s, OP_undefined);
-        }
-        if (s->cur_func->func_kind == JS_FUNC_ASYNC_GENERATOR) {
-            int label_loop, label_return, label_next;
-            int label_return1, label_yield, label_throw, label_throw1;
-            int label_throw2;
-
-            if (is_star) {
-                label_loop = new_label(s);
-                label_yield = new_label(s);
-
-                emit_op(s, OP_for_await_of_start);
-
-                /* remove the catch offset (XXX: could avoid pushing back
-                   undefined) */
-                emit_op(s, OP_drop);
-                emit_op(s, OP_undefined);
-
-                emit_op(s, OP_undefined); /* initial value */
-
-                emit_label(s, label_loop);
-                emit_op(s, OP_async_iterator_next);
-                emit_op(s, OP_await);
-                emit_op(s, OP_iterator_get_value_done);
-                label_next = emit_goto(s, OP_if_true, -1); /* end of loop */
-                emit_op(s, OP_await);
-                emit_label(s, label_yield);
-                emit_op(s, OP_async_yield_star);
-                emit_op(s, OP_dup);
-                label_return = emit_goto(s, OP_if_true, -1);
-                emit_op(s, OP_drop);
-                emit_goto(s, OP_goto, label_loop);
-
-                emit_label(s, label_return);
-                emit_op(s, OP_push_i32);
-                emit_u32(s, 2);
-                emit_op(s, OP_strict_eq);
-                label_throw = emit_goto(s, OP_if_true, -1);
-
-                /* return handling */
-                emit_op(s, OP_await);
-                emit_op(s, OP_async_iterator_get);
-                emit_u8(s, 0);
-                label_return1 = emit_goto(s, OP_if_true, -1);
-                emit_op(s, OP_await);
-                emit_op(s, OP_iterator_get_value_done);
-                /* XXX: the spec does not indicate that an await should be
-                   performed in case done = true, but the tests assume it */
-                emit_goto(s, OP_if_false, label_yield);
-
-                emit_label(s, label_return1);
-                emit_op(s, OP_nip);
-                emit_op(s, OP_nip);
-                emit_op(s, OP_nip);
-                emit_return(s, TRUE);
-
-                /* throw handling */
-                emit_label(s, label_throw);
-                emit_op(s, OP_async_iterator_get);
-                emit_u8(s, 1);
-                label_throw1 = emit_goto(s, OP_if_true, -1);
-                emit_op(s, OP_await);
-                emit_op(s, OP_iterator_get_value_done);
-                emit_goto(s, OP_if_false, label_yield);
-                /* XXX: the spec does not indicate that an await should be
-                   performed in case done = true, but the tests assume it */
-                emit_op(s, OP_await);
-                emit_goto(s, OP_goto, label_next);
-                /* close the iterator and throw a type error exception */
-                emit_label(s, label_throw1);
-                emit_op(s, OP_async_iterator_get);
-                emit_u8(s, 0);
-                label_throw2 = emit_goto(s, OP_if_true, -1);
-                emit_op(s, OP_await);
-                emit_label(s, label_throw2);
-                emit_op(s, OP_async_iterator_get);
-                emit_u8(s, 2); /* throw the type error exception */
-                emit_op(s, OP_drop); /* never reached */
-
-                emit_label(s, label_next);
-                emit_op(s, OP_nip); /* keep the value associated with
-                                       done = true */
-                emit_op(s, OP_nip);
-                emit_op(s, OP_nip);
-            } else {
-                emit_op(s, OP_await);
-                emit_op(s, OP_yield);
-                label_next = emit_goto(s, OP_if_false, -1);
-                emit_return(s, TRUE);
-                emit_label(s, label_next);
-            }
-        } else {
-            int label_next;
-            if (is_star) {
-                emit_op(s, OP_for_of_start);
-                emit_op(s, OP_drop);    /* drop the catch offset */
-                emit_op(s, OP_yield_star);
-            } else {
-                emit_op(s, OP_yield);
-            }
-            label_next = emit_goto(s, OP_if_false, -1);
-            emit_return(s, TRUE);
-            emit_label(s, label_next);
-        }
-        return 0;
-    }
-    if (s->token.val == TOK_IDENT) {
-        /* name0 is used to check for OP_set_name pattern, not duplicated */
-        name0 = s->token.u.ident.atom;
-    }
-    if (js_parse_cond_expr(s, in_accepted))
-        return -1;
-
-    op = s->token.val;
-    if (op == '=' || (op >= TOK_MUL_ASSIGN && op <= TOK_POW_ASSIGN)) {
-        int label;
-        if (next_token(s))
-            return -1;
-        if (get_lvalue(s, &opcode, &scope, &name, &label, NULL, (op != '='), op) < 0)
-            return -1;
-
-        if (js_parse_assign_expr(s, in_accepted)) {
-            JS_FreeAtom(s->ctx, name);
-            return -1;
-        }
-
-        if (op == '=') {
-            if (opcode == OP_get_ref_value && name == name0) {
-                set_object_name(s, name);
-            }
-        } else {
-            static const uint8_t assign_opcodes[] = {
-                OP_mul, OP_div, OP_mod, OP_add, OP_sub,
-                OP_shl, OP_sar, OP_shr, OP_and, OP_xor, OP_or,
-#ifdef CONFIG_BIGNUM
-                OP_pow,
-#endif
-                OP_pow,
-            };
-            op = assign_opcodes[op - TOK_MUL_ASSIGN];
-#ifdef CONFIG_BIGNUM
-            if (s->cur_func->js_mode & JS_MODE_MATH) {
-                if (op == OP_div)
-                    op = OP_math_div;
-                else if (op == OP_mod)
-                    op = OP_math_mod;
-                else if (op == OP_pow)
-                    op = OP_math_pow;
-            }
-#endif
-            emit_op(s, op);
-        }
-        put_lvalue(s, opcode, scope, name, label, FALSE);
-    }
-    return 0;
-}
-
-static __exception int js_parse_expr2(JSParseState *s, BOOL in_accepted)
-{
-    BOOL comma = FALSE;
-    for(;;) {
-        if (js_parse_assign_expr(s, in_accepted))
-            return -1;
-        if (comma) {
-            /* prevent get_lvalue from using the last expression
-               as an lvalue. This also prevents the conversion of
-               of get_var to get_ref for method lookup in function
-               call inside `with` statement.
-             */
-            s->cur_func->last_opcode_pos = -1;
-        }
-        if (s->token.val != ',')
-            break;
-        comma = TRUE;
-        if (next_token(s))
-            return -1;
-        emit_op(s, OP_drop);
-    }
-    return 0;
-}
-
-static __exception int js_parse_expr(JSParseState *s)
-{
-    return js_parse_expr2(s, TRUE);
-}
-
-static void push_break_entry(JSFunctionDef *fd, BlockEnv *be,
-                             JSAtom label_name,
-                             int label_break, int label_cont,
-                             int drop_count)
-{
-    be->prev = fd->top_break;
-    fd->top_break = be;
-    be->label_name = label_name;
-    be->label_break = label_break;
-    be->label_cont = label_cont;
-    be->drop_count = drop_count;
-    be->label_finally = -1;
-    be->scope_level = fd->scope_level;
-    be->has_iterator = FALSE;
-}
-
-static void pop_break_entry(JSFunctionDef *fd)
-{
-    BlockEnv *be;
-    be = fd->top_break;
-    fd->top_break = be->prev;
-}
-
-static __exception int emit_break(JSParseState *s, JSAtom name, int is_cont)
-{
-    BlockEnv *top;
-    int i, scope_level;
-
-    scope_level = s->cur_func->scope_level;
-    top = s->cur_func->top_break;
-    while (top != NULL) {
-        close_scopes(s, scope_level, top->scope_level);
-        scope_level = top->scope_level;
-        if (is_cont &&
-            top->label_cont != -1 &&
-            (name == JS_ATOM_NULL || top->label_name == name)) {
-            /* continue stays inside the same block */
-            emit_goto(s, OP_goto, top->label_cont);
-            return 0;
-        }
-        if (!is_cont &&
-            top->label_break != -1 &&
-            (name == JS_ATOM_NULL || top->label_name == name)) {
-            emit_goto(s, OP_goto, top->label_break);
-            return 0;
-        }
-        i = 0;
-        if (top->has_iterator) {
-            emit_op(s, OP_iterator_close);
-            i += 3;
-        }
-        for(; i < top->drop_count; i++)
-            emit_op(s, OP_drop);
-        if (top->label_finally != -1) {
-            /* must push dummy value to keep same stack depth */
-            emit_op(s, OP_undefined);
-            emit_goto(s, OP_gosub, top->label_finally);
-            emit_op(s, OP_drop);
-        }
-        top = top->prev;
-    }
-    if (name == JS_ATOM_NULL) {
-        if (is_cont)
-            return js_parse_error(s, "continue must be inside loop");
-        else
-            return js_parse_error(s, "break must be inside loop or switch");
-    } else {
-        return js_parse_error(s, "break/continue label not found");
-    }
-}
-
-/* execute the finally blocks before return */
-static void emit_return(JSParseState *s, BOOL hasval)
-{
-    BlockEnv *top;
-    int drop_count;
-
-    drop_count = 0;
-    top = s->cur_func->top_break;
-    while (top != NULL) {
-        /* XXX: emit the appropriate OP_leave_scope opcodes? Probably not
-           required as all local variables will be closed upon returning
-           from JS_CallInternal, but not in the same order. */
-        if (top->has_iterator) {
-            /* with 'yield', the exact number of OP_drop to emit is
-               unknown, so we use a specific operation to look for
-               the catch offset */
-            if (!hasval) {
-                emit_op(s, OP_undefined);
-                hasval = TRUE;
-            }
-            emit_op(s, OP_iterator_close_return);
-            if (s->cur_func->func_kind == JS_FUNC_ASYNC_GENERATOR) {
-                int label_next;
-                emit_op(s, OP_async_iterator_close);
-                label_next = emit_goto(s, OP_if_true, -1);
-                emit_op(s, OP_await);
-                emit_label(s, label_next);
-                emit_op(s, OP_drop);
-            } else {
-                emit_op(s, OP_iterator_close);
-            }
-            drop_count = -3;
-        }
-        drop_count += top->drop_count;
-        if (top->label_finally != -1) {
-            while(drop_count) {
-                /* must keep the stack top if hasval */
-                emit_op(s, hasval ? OP_nip : OP_drop);
-                drop_count--;
-            }
-            if (!hasval) {
-                /* must push return value to keep same stack size */
-                emit_op(s, OP_undefined);
-                hasval = TRUE;
-            }
-            emit_goto(s, OP_gosub, top->label_finally);
-        }
-        top = top->prev;
-    }
-    if (s->cur_func->is_derived_class_constructor) {
-        int label_return;
-
-        /* 'this' can be uninitialized, so it may be accessed only if
-           the derived class constructor does not return an object */
-        if (hasval) {
-            emit_op(s, OP_check_ctor_return);
-            label_return = emit_goto(s, OP_if_false, -1);
-            emit_op(s, OP_drop);
-        } else {
-            label_return = -1;
-        }
-
-        emit_op(s, OP_scope_get_var);
-        emit_atom(s, JS_ATOM_this);
-        emit_u16(s, 0);
-
-        emit_label(s, label_return);
-        emit_op(s, OP_return);
-    } else if (s->cur_func->func_kind != JS_FUNC_NORMAL) {
-        if (!hasval) {
-            emit_op(s, OP_undefined);
-        } else if (s->cur_func->func_kind == JS_FUNC_ASYNC_GENERATOR) {
-            emit_op(s, OP_await);
-        }
-        emit_op(s, OP_return_async);
-    } else {
-        emit_op(s, hasval ? OP_return : OP_return_undef);
-    }
-}
-
-#define DECL_MASK_FUNC  (1 << 0) /* allow normal function declaration */
-#define DECL_MASK_LABEL (1 << 1) /* allow labelled statement */
-#define DECL_MASK_OTHER (1 << 2) /* all other declarations */
-#define DECL_MASK_ALL   (DECL_MASK_FUNC | DECL_MASK_LABEL | DECL_MASK_OTHER)
-
-static __exception int js_parse_statement_or_decl(JSParseState *s,
-                                                  int decl_mask);
-
-static __exception int js_parse_statement(JSParseState *s)
-{
-    return js_parse_statement_or_decl(s, 0);
-}
-
-static __exception int js_parse_block(JSParseState *s)
-{
-    if (js_parse_expect(s, '{'))
-        return -1;
-    if (s->token.val != '}') {
-        push_scope(s);
-        for(;;) {
-            if (js_parse_statement_or_decl(s, DECL_MASK_ALL))
-                return -1;
-            if (s->token.val == '}')
-                break;
-        }
-        pop_scope(s);
-    }
-    if (next_token(s))
-        return -1;
-    return 0;
-}
-
-static __exception int js_parse_var(JSParseState *s, BOOL in_accepted, int tok,
-                                    BOOL export_flag)
-{
-    JSContext *ctx = s->ctx;
-    JSFunctionDef *fd = s->cur_func;
-    JSAtom name = JS_ATOM_NULL;
-
-    for (;;) {
-        if (s->token.val == TOK_IDENT) {
-            if (s->token.u.ident.is_reserved) {
-                return js_parse_error_reserved_identifier(s);
-            }
-            name = JS_DupAtom(ctx, s->token.u.ident.atom);
-            if (name == JS_ATOM_let && (tok == TOK_LET || tok == TOK_CONST)) {
-                js_parse_error(s, "'let' is not a valid lexical identifier");
-                goto var_error;
-            }
-            if (next_token(s))
-                goto var_error;
-            if (js_define_var(s, name, tok))
-                goto var_error;
-            if (export_flag) {
-                if (!add_export_entry(s, s->cur_func->module, name, name,
-                                      JS_EXPORT_TYPE_LOCAL))
-                    goto var_error;
-            }
-
-            if (s->token.val == '=') {
-                if (next_token(s))
-                    goto var_error;
-                if (tok == TOK_VAR) {
-                    /* Must make a reference for proper `with` semantics */
-                    int opcode, scope, label;
-                    JSAtom name1;
-
-                    emit_op(s, OP_scope_get_var);
-                    emit_atom(s, name);
-                    emit_u16(s, fd->scope_level);
-                    if (get_lvalue(s, &opcode, &scope, &name1, &label, NULL, FALSE, '=') < 0)
-                        goto var_error;
-                    if (js_parse_assign_expr(s, in_accepted)) {
-                        JS_FreeAtom(ctx, name1);
-                        goto var_error;
-                    }
-                    set_object_name(s, name);
-                    put_lvalue(s, opcode, scope, name1, label, FALSE);
-                    emit_op(s, OP_drop);
-                } else {
-                    if (js_parse_assign_expr(s, in_accepted))
-                        goto var_error;
-                    set_object_name(s, name);
-                    emit_op(s, (tok == TOK_CONST || tok == TOK_LET) ?
-                        OP_scope_put_var_init : OP_scope_put_var);
-                    emit_atom(s, name);
-                    emit_u16(s, fd->scope_level);
-                }
-            } else {
-                if (tok == TOK_CONST) {
-                    js_parse_error(s, "missing initializer for const variable");
-                    goto var_error;
-                }
-                if (tok == TOK_LET) {
-                    /* initialize lexical variable upon entering its scope */
-                    emit_op(s, OP_undefined);
-                    emit_op(s, OP_scope_put_var_init);
-                    emit_atom(s, name);
-                    emit_u16(s, fd->scope_level);
-                }
-            }
-            JS_FreeAtom(ctx, name);
-        } else {
-            int skip_bits;
-            if ((s->token.val == '[' || s->token.val == '{')
-            &&  js_parse_skip_parens_token(s, &skip_bits, FALSE) == '=') {
-                emit_op(s, OP_undefined);
-                if (js_parse_destructing_element(s, tok, 0, TRUE, skip_bits & SKIP_HAS_ELLIPSIS, TRUE))
-                    return -1;
-            } else {
-                return js_parse_error(s, "variable name expected");
-            }
-        }
-        if (s->token.val != ',')
-            break;
-        if (next_token(s))
-            return -1;
-    }
-    return 0;
-
- var_error:
-    JS_FreeAtom(ctx, name);
-    return -1;
-}
-
-/* test if the current token is a label. Use simplistic look-ahead scanner */
-static BOOL is_label(JSParseState *s)
-{
-    return (s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved &&
-            peek_token(s, FALSE) == ':');
-}
-
-/* test if the current token is a let keyword. Use simplistic look-ahead scanner */
-static int is_let(JSParseState *s, int decl_mask)
-{
-    int res = FALSE;
-
-    if (token_is_pseudo_keyword(s, JS_ATOM_let)) {
-#if 1
-        JSParsePos pos;
-        js_parse_get_pos(s, &pos);
-        for (;;) {
-            if (next_token(s)) {
-                res = -1;
-                break;
-            }
-            if (s->token.val == '[') {
-                /* let [ is a syntax restriction:
-                   it never introduces an ExpressionStatement */
-                res = TRUE;
-                break;
-            }
-            if (s->token.val == '{' ||
-                (s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved) ||
-                s->token.val == TOK_LET ||
-                s->token.val == TOK_YIELD ||
-                s->token.val == TOK_AWAIT) {
-                /* Check for possible ASI if not scanning for Declaration */
-                /* XXX: should also check that `{` introduces a BindingPattern,
-                   but Firefox does not and rejects eval("let=1;let\n{if(1)2;}") */
-                if (s->last_line_num == s->token.line_num || (decl_mask & DECL_MASK_OTHER)) {
-                    res = TRUE;
-                    break;
-                }
-                break;
-            }
-            break;
-        }
-        if (js_parse_seek_token(s, &pos)) {
-            res = -1;
-        }
-#else
-        int tok = peek_token(s, TRUE);
-        if (tok == '{' || tok == TOK_IDENT || peek_token(s, FALSE) == '[') {
-            res = TRUE;
-        }
-#endif
-    }
-    return res;
-}
-
-/* XXX: handle IteratorClose when exiting the loop before the
-   enumeration is done */
-static __exception int js_parse_for_in_of(JSParseState *s, int label_name,
-                                          BOOL is_async)
-{
-    JSContext *ctx = s->ctx;
-    JSFunctionDef *fd = s->cur_func;
-    JSAtom var_name;
-    BOOL has_initializer, is_for_of, has_destructuring;
-    int tok, tok1, opcode, scope, block_scope_level;
-    int label_next, label_expr, label_cont, label_body, label_break;
-    int pos_next, pos_expr;
-    BlockEnv break_entry;
-
-    has_initializer = FALSE;
-    has_destructuring = FALSE;
-    is_for_of = FALSE;
-    block_scope_level = fd->scope_level;
-    label_cont = new_label(s);
-    label_body = new_label(s);
-    label_break = new_label(s);
-    label_next = new_label(s);
-
-    /* create scope for the lexical variables declared in the enumeration
-       expressions. XXX: Not completely correct because of weird capturing
-       semantics in `for (i of o) a.push(function(){return i})` */
-    push_scope(s);
-
-    /* local for_in scope starts here so individual elements
-       can be closed in statement. */
-    push_break_entry(s->cur_func, &break_entry,
-                     label_name, label_break, label_cont, 1);
-    break_entry.scope_level = block_scope_level;
-
-    label_expr = emit_goto(s, OP_goto, -1);
-
-    pos_next = s->cur_func->byte_code.size;
-    emit_label(s, label_next);
-
-    tok = s->token.val;
-    switch (is_let(s, DECL_MASK_OTHER)) {
-    case TRUE:
-        tok = TOK_LET;
-        break;
-    case FALSE:
-        break;
-    default:
-        return -1;
-    }
-    if (tok == TOK_VAR || tok == TOK_LET || tok == TOK_CONST) {
-        if (next_token(s))
-            return -1;
-
-        if (!(s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved)) {
-            if (s->token.val == '[' || s->token.val == '{') {
-                if (js_parse_destructing_element(s, tok, 0, TRUE, -1, FALSE))
-                    return -1;
-                has_destructuring = TRUE;
-            } else {
-                return js_parse_error(s, "variable name expected");
-            }
-            var_name = JS_ATOM_NULL;
-        } else {
-            var_name = JS_DupAtom(ctx, s->token.u.ident.atom);
-            if (next_token(s)) {
-                JS_FreeAtom(s->ctx, var_name);
-                return -1;
-            }
-            /* Note: if there is a '=' after, it cannot be a for-of. */
-            if (tok == TOK_VAR && token_is_pseudo_keyword(s, JS_ATOM_of))
-                tok = TOK_FOR;
-            if (js_define_var(s, var_name, tok)) {
-                JS_FreeAtom(s->ctx, var_name);
-                return -1;
-            }
-            emit_op(s, (tok == TOK_CONST || tok == TOK_LET) ?
-                    OP_scope_put_var_init : OP_scope_put_var);
-            emit_atom(s, var_name);
-            emit_u16(s, fd->scope_level);
-        }
-    } else {
-        int skip_bits;
-        if ((s->token.val == '[' || s->token.val == '{')
-        &&  ((tok1 = js_parse_skip_parens_token(s, &skip_bits, FALSE)) == TOK_IN || tok1 == TOK_OF)) {
-            if (js_parse_destructing_element(s, 0, 0, TRUE, skip_bits & SKIP_HAS_ELLIPSIS, TRUE))
-                return -1;
-        } else {
-            int lvalue_label, depth;
-            if (js_parse_postfix_expr(s, TRUE))
-                return -1;
-            if (get_lvalue(s, &opcode, &scope, &var_name, &lvalue_label,
-                           &depth, FALSE, TOK_FOR))
-                return -1;
-            /* swap value and lvalue object and store it into lvalue object */
-            /* enum_rec val [depth] -- enum_rec */
-            switch(depth) {
-            case 1:
-                emit_op(s, OP_swap);
-                break;
-            case 2:
-                emit_op(s, OP_rot3l);
-                break;
-            case 3:
-                emit_op(s, OP_rot4l);
-                break;
-            default:
-                abort();
-            }
-            put_lvalue_nokeep(s, opcode, scope, var_name, lvalue_label,
-                              TOK_FOR /* not used */);
-        }
-        var_name = JS_ATOM_NULL;
-    }
-    emit_goto(s, OP_goto, label_body);
-
-    pos_expr = s->cur_func->byte_code.size;
-    emit_label(s, label_expr);
-    if (s->token.val == '=') {
-        /* XXX: potential scoping issue if inside `with` statement */
-        has_initializer = TRUE;
-        /* parse and evaluate initializer prior to evaluating the
-           object (only used with "for in" with a non lexical variable
-           in non strict mode */
-        if (next_token(s) || js_parse_assign_expr(s, FALSE)) {
-            JS_FreeAtom(ctx, var_name);
-            return -1;
-        }
-        if (var_name != JS_ATOM_NULL) {
-            emit_op(s, OP_scope_put_var);
-            emit_atom(s, var_name);
-            emit_u16(s, fd->scope_level);
-        }
-    }
-    JS_FreeAtom(ctx, var_name);
-
-    if (token_is_pseudo_keyword(s, JS_ATOM_of)) {
-        break_entry.has_iterator = is_for_of = TRUE;
-        break_entry.drop_count += 2;
-        if (has_initializer)
-            goto initializer_error;
-    } else if (s->token.val == TOK_IN) {
-        if (is_async)
-            return js_parse_error(s, "'for await' loop should be used with 'of'");
-        if (has_initializer &&
-            (tok != TOK_VAR || (fd->js_mode & JS_MODE_STRICT) ||
-             has_destructuring)) {
-        initializer_error:
-            return js_parse_error(s, "a declaration in the head of a for-%s loop can't have an initializer",
-                                  is_for_of ? "of" : "in");
-        }
-    } else {
-        return js_parse_error(s, "expected 'of' or 'in' in for control expression");
-    }
-    if (next_token(s))
-        return -1;
-    if (is_for_of) {
-        if (js_parse_assign_expr(s, TRUE))
-            return -1;
-    } else {
-        if (js_parse_expr(s))
-            return -1;
-    }
-    /* close the scope after having evaluated the expression so that
-       the TDZ values are in the closures */
-    close_scopes(s, s->cur_func->scope_level, block_scope_level);
-    if (is_for_of) {
-        if (is_async)
-            emit_op(s, OP_for_await_of_start);
-        else
-            emit_op(s, OP_for_of_start);
-        /* on stack: enum_rec */
-    } else {
-        emit_op(s, OP_for_in_start);
-        /* on stack: enum_obj */
-    }
-    emit_goto(s, OP_goto, label_cont);
-
-    if (js_parse_expect(s, ')'))
-        return -1;
-
-    if (OPTIMIZE) {
-        /* move the `next` code here */
-        DynBuf *bc = &s->cur_func->byte_code;
-        int chunk_size = pos_expr - pos_next;
-        int offset = bc->size - pos_next;
-        int i;
-        dbuf_realloc(bc, bc->size + chunk_size);
-        dbuf_put(bc, bc->buf + pos_next, chunk_size);
-        memset(bc->buf + pos_next, OP_nop, chunk_size);
-        /* `next` part ends with a goto */
-        s->cur_func->last_opcode_pos = bc->size - 5;
-        /* relocate labels */
-        for (i = label_cont; i < s->cur_func->label_count; i++) {
-            LabelSlot *ls = &s->cur_func->label_slots[i];
-            if (ls->pos >= pos_next && ls->pos < pos_expr)
-                ls->pos += offset;
-        }
-    }
-
-    emit_label(s, label_body);
-    if (js_parse_statement(s))
-        return -1;
-
-    close_scopes(s, s->cur_func->scope_level, block_scope_level);
-
-    emit_label(s, label_cont);
-    if (is_for_of) {
-        if (is_async) {
-            /* call the next method */
-            emit_op(s, OP_for_await_of_next);
-            /* get the result of the promise */
-            emit_op(s, OP_await);
-            /* unwrap the value and done values */
-            emit_op(s, OP_iterator_get_value_done);
-        } else {
-            emit_op(s, OP_for_of_next);
-            emit_u8(s, 0);
-        }
-    } else {
-        emit_op(s, OP_for_in_next);
-    }
-    /* on stack: enum_rec / enum_obj value bool */
-    emit_goto(s, OP_if_false, label_next);
-    /* drop the undefined value from for_xx_next */
-    emit_op(s, OP_drop);
-
-    emit_label(s, label_break);
-    if (is_for_of) {
-        /* close and drop enum_rec */
-        emit_op(s, OP_iterator_close);
-    } else {
-        emit_op(s, OP_drop);
-    }
-    pop_break_entry(s->cur_func);
-    pop_scope(s);
-    return 0;
-}
-
-static void set_eval_ret_undefined(JSParseState *s)
-{
-    if (s->cur_func->eval_ret_idx >= 0) {
-        emit_op(s, OP_undefined);
-        emit_op(s, OP_put_loc);
-        emit_u16(s, s->cur_func->eval_ret_idx);
-    }
-}
-
-static __exception int js_parse_statement_or_decl(JSParseState *s,
-                                                  int decl_mask)
-{
-    JSContext *ctx = s->ctx;
-    JSAtom label_name;
-    int tok;
-
-    /* specific label handling */
-    /* XXX: support multiple labels on loop statements */
-    label_name = JS_ATOM_NULL;
-    if (is_label(s)) {
-        BlockEnv *be;
-
-        if (!(decl_mask & DECL_MASK_LABEL)) {
-            js_parse_error(s, "functions can only be labelled inside blocks");
-            goto fail;
-        }
-        label_name = JS_DupAtom(ctx, s->token.u.ident.atom);
-
-        for (be = s->cur_func->top_break; be; be = be->prev) {
-            if (be->label_name == label_name) {
-                js_parse_error(s, "duplicate label name");
-                goto fail;
-            }
-        }
-
-        if (next_token(s))
-            goto fail;
-        if (js_parse_expect(s, ':'))
-            goto fail;
-        if (s->token.val != TOK_FOR
-        &&  s->token.val != TOK_DO
-        &&  s->token.val != TOK_WHILE) {
-            /* labelled regular statement */
-            int label_break, mask;
-            BlockEnv break_entry;
-
-            label_break = new_label(s);
-            push_break_entry(s->cur_func, &break_entry,
-                             label_name, label_break, -1, 0);
-            if (s->cur_func->js_mode & JS_MODE_STRICT)
-                mask = 0;
-            else
-                mask = DECL_MASK_FUNC;
-            mask |= DECL_MASK_LABEL;
-            if (js_parse_statement_or_decl(s, mask))
-                goto fail;
-            emit_label(s, label_break);
-            pop_break_entry(s->cur_func);
-            goto done;
-        }
-    }
-
-    switch(tok = s->token.val) {
-    case '{':
-        if (js_parse_block(s))
-            goto fail;
-        break;
-    case TOK_RETURN:
-        if (s->cur_func->is_eval) {
-            js_parse_error(s, "return not in a function");
-            goto fail;
-        }
-        if (next_token(s))
-            goto fail;
-        if (s->token.val != ';' && s->token.val != '}' && !s->got_lf) {
-            if (js_parse_expr(s))
-                goto fail;
-            emit_return(s, TRUE);
-        } else {
-            emit_return(s, FALSE);
-        }
-        if (js_parse_expect_semi(s))
-            goto fail;
-        break;
-    case TOK_THROW:
-        if (next_token(s))
-            goto fail;
-        if (s->got_lf) {
-            js_parse_error(s, "line terminator not allowed after throw");
-            goto fail;
-        }
-        if (js_parse_expr(s))
-            goto fail;
-        emit_op(s, OP_throw);
-        if (js_parse_expect_semi(s))
-            goto fail;
-        break;
-    case TOK_LET:
-    case TOK_CONST:
-    haslet:
-        if (!(decl_mask & DECL_MASK_OTHER)) {
-            js_parse_error(s, "lexical declarations can't appear in single-statement context");
-            goto fail;
-        }
-        /* fall thru */
-    case TOK_VAR:
-        if (next_token(s))
-            goto fail;
-        if (js_parse_var(s, TRUE, tok, FALSE))
-            goto fail;
-        if (js_parse_expect_semi(s))
-            goto fail;
-        break;
-    case TOK_IF:
-        {
-            int label1, label2, mask;
-            if (next_token(s))
-                goto fail;
-            /* create a new scope for `let f;if(1) function f(){}` */
-            push_scope(s);
-            set_eval_ret_undefined(s);
-            if (js_parse_expr_paren(s))
-                goto fail;
-            label1 = emit_goto(s, OP_if_false, -1);
-            if (s->cur_func->js_mode & JS_MODE_STRICT)
-                mask = 0;
-            else
-                mask = DECL_MASK_FUNC; /* Annex B.3.4 */
-
-            if (js_parse_statement_or_decl(s, mask))
-                goto fail;
-
-            if (s->token.val == TOK_ELSE) {
-                label2 = emit_goto(s, OP_goto, -1);
-                if (next_token(s))
-                    goto fail;
-
-                emit_label(s, label1);
-                if (js_parse_statement_or_decl(s, mask))
-                    goto fail;
-
-                label1 = label2;
-            }
-            emit_label(s, label1);
-            pop_scope(s);
-        }
-        break;
-    case TOK_WHILE:
-        {
-            int label_cont, label_break;
-            BlockEnv break_entry;
-
-            label_cont = new_label(s);
-            label_break = new_label(s);
-
-            push_break_entry(s->cur_func, &break_entry,
-                             label_name, label_break, label_cont, 0);
-
-            if (next_token(s))
-                goto fail;
-
-            set_eval_ret_undefined(s);
-
-            emit_label(s, label_cont);
-            if (js_parse_expr_paren(s))
-                goto fail;
-            emit_goto(s, OP_if_false, label_break);
-
-            if (js_parse_statement(s))
-                goto fail;
-            emit_goto(s, OP_goto, label_cont);
-
-            emit_label(s, label_break);
-
-            pop_break_entry(s->cur_func);
-        }
-        break;
-    case TOK_DO:
-        {
-            int label_cont, label_break, label1;
-            BlockEnv break_entry;
-
-            label_cont = new_label(s);
-            label_break = new_label(s);
-            label1 = new_label(s);
-
-            push_break_entry(s->cur_func, &break_entry,
-                             label_name, label_break, label_cont, 0);
-
-            if (next_token(s))
-                goto fail;
-
-            emit_label(s, label1);
-
-            set_eval_ret_undefined(s);
-
-            if (js_parse_statement(s))
-                goto fail;
-
-            emit_label(s, label_cont);
-            if (js_parse_expect(s, TOK_WHILE))
-                goto fail;
-            if (js_parse_expr_paren(s))
-                goto fail;
-            /* Insert semicolon if missing */
-            if (s->token.val == ';') {
-                if (next_token(s))
-                    goto fail;
-            }
-            emit_goto(s, OP_if_true, label1);
-
-            emit_label(s, label_break);
-
-            pop_break_entry(s->cur_func);
-        }
-        break;
-    case TOK_FOR:
-        {
-            int label_cont, label_break, label_body, label_test;
-            int pos_cont, pos_body, block_scope_level;
-            BlockEnv break_entry;
-            int tok, bits;
-            BOOL is_async;
-
-            if (next_token(s))
-                goto fail;
-
-            set_eval_ret_undefined(s);
-            bits = 0;
-            is_async = FALSE;
-            if (s->token.val == '(') {
-                js_parse_skip_parens_token(s, &bits, FALSE);
-            } else if (s->token.val == TOK_AWAIT) {
-                if (!(s->cur_func->func_kind & JS_FUNC_ASYNC)) {
-                    js_parse_error(s, "for await is only valid in asynchronous functions");
-                    goto fail;
-                }
-                is_async = TRUE;
-                if (next_token(s))
-                    goto fail;
-            }
-            if (js_parse_expect(s, '('))
-                goto fail;
-
-            if (!(bits & SKIP_HAS_SEMI)) {
-                /* parse for/in or for/of */
-                if (js_parse_for_in_of(s, label_name, is_async))
-                    goto fail;
-                break;
-            }
-            block_scope_level = s->cur_func->scope_level;
-
-            /* create scope for the lexical variables declared in the initial,
-               test and increment expressions */
-            push_scope(s);
-            /* initial expression */
-            tok = s->token.val;
-            if (tok != ';') {
-                switch (is_let(s, DECL_MASK_OTHER)) {
-                case TRUE:
-                    tok = TOK_LET;
-                    break;
-                case FALSE:
-                    break;
-                default:
-                    goto fail;
-                }
-                if (tok == TOK_VAR || tok == TOK_LET || tok == TOK_CONST) {
-                    if (next_token(s))
-                        goto fail;
-                    if (js_parse_var(s, FALSE, tok, FALSE))
-                        goto fail;
-                } else {
-                    if (js_parse_expr2(s, FALSE))
-                        goto fail;
-                    emit_op(s, OP_drop);
-                }
-
-                /* close the closures before the first iteration */
-                close_scopes(s, s->cur_func->scope_level, block_scope_level);
-            }
-            if (js_parse_expect(s, ';'))
-                goto fail;
-
-            label_test = new_label(s);
-            label_cont = new_label(s);
-            label_body = new_label(s);
-            label_break = new_label(s);
-
-            push_break_entry(s->cur_func, &break_entry,
-                             label_name, label_break, label_cont, 0);
-
-            /* test expression */
-            if (s->token.val == ';') {
-                /* no test expression */
-                label_test = label_body;
-            } else {
-                emit_label(s, label_test);
-                if (js_parse_expr(s))
-                    goto fail;
-                emit_goto(s, OP_if_false, label_break);
-            }
-            if (js_parse_expect(s, ';'))
-                goto fail;
-
-            if (s->token.val == ')') {
-                /* no end expression */
-                break_entry.label_cont = label_cont = label_test;
-                pos_cont = 0; /* avoid warning */
-            } else {
-                /* skip the end expression */
-                emit_goto(s, OP_goto, label_body);
-
-                pos_cont = s->cur_func->byte_code.size;
-                emit_label(s, label_cont);
-                if (js_parse_expr(s))
-                    goto fail;
-                emit_op(s, OP_drop);
-                if (label_test != label_body)
-                    emit_goto(s, OP_goto, label_test);
-            }
-            if (js_parse_expect(s, ')'))
-                goto fail;
-
-            pos_body = s->cur_func->byte_code.size;
-            emit_label(s, label_body);
-            if (js_parse_statement(s))
-                goto fail;
-
-            /* close the closures before the next iteration */
-            /* XXX: check continue case */
-            close_scopes(s, s->cur_func->scope_level, block_scope_level);
-
-            if (OPTIMIZE && label_test != label_body && label_cont != label_test) {
-                /* move the increment code here */
-                DynBuf *bc = &s->cur_func->byte_code;
-                int chunk_size = pos_body - pos_cont;
-                int offset = bc->size - pos_cont;
-                int i;
-                dbuf_realloc(bc, bc->size + chunk_size);
-                dbuf_put(bc, bc->buf + pos_cont, chunk_size);
-                memset(bc->buf + pos_cont, OP_nop, chunk_size);
-                /* increment part ends with a goto */
-                s->cur_func->last_opcode_pos = bc->size - 5;
-                /* relocate labels */
-                for (i = label_cont; i < s->cur_func->label_count; i++) {
-                    LabelSlot *ls = &s->cur_func->label_slots[i];
-                    if (ls->pos >= pos_cont && ls->pos < pos_body)
-                        ls->pos += offset;
-                }
-            } else {
-                emit_goto(s, OP_goto, label_cont);
-            }
-
-            emit_label(s, label_break);
-
-            pop_break_entry(s->cur_func);
-            pop_scope(s);
-        }
-        break;
-    case TOK_BREAK:
-    case TOK_CONTINUE:
-        {
-            int is_cont = s->token.val - TOK_BREAK;
-            int label;
-
-            if (next_token(s))
-                goto fail;
-            if (!s->got_lf && s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved)
-                label = s->token.u.ident.atom;
-            else
-                label = JS_ATOM_NULL;
-            if (emit_break(s, label, is_cont))
-                goto fail;
-            if (label != JS_ATOM_NULL) {
-                if (next_token(s))
-                    goto fail;
-            }
-            if (js_parse_expect_semi(s))
-                goto fail;
-        }
-        break;
-    case TOK_SWITCH:
-        {
-            int label_case, label_break, label1;
-            int default_label_pos;
-            BlockEnv break_entry;
-
-            if (next_token(s))
-                goto fail;
-
-            set_eval_ret_undefined(s);
-            if (js_parse_expr_paren(s))
-                goto fail;
-
-            push_scope(s);
-            label_break = new_label(s);
-            push_break_entry(s->cur_func, &break_entry,
-                             label_name, label_break, -1, 1);
-
-            if (js_parse_expect(s, '{'))
-                goto fail;
-
-            default_label_pos = -1;
-            label_case = -1;
-            while (s->token.val != '}') {
-                if (s->token.val == TOK_CASE) {
-                    label1 = -1;
-                    if (label_case >= 0) {
-                        /* skip the case if needed */
-                        label1 = emit_goto(s, OP_goto, -1);
-                    }
-                    emit_label(s, label_case);
-                    label_case = -1;
-                    for (;;) {
-                        /* parse a sequence of case clauses */
-                        if (next_token(s))
-                            goto fail;
-                        emit_op(s, OP_dup);
-                        if (js_parse_expr(s))
-                            goto fail;
-                        if (js_parse_expect(s, ':'))
-                            goto fail;
-                        emit_op(s, OP_strict_eq);
-                        if (s->token.val == TOK_CASE) {
-                            label1 = emit_goto(s, OP_if_true, label1);
-                        } else {
-                            label_case = emit_goto(s, OP_if_false, -1);
-                            emit_label(s, label1);
-                            break;
-                        }
-                    }
-                } else if (s->token.val == TOK_DEFAULT) {
-                    if (next_token(s))
-                        goto fail;
-                    if (js_parse_expect(s, ':'))
-                        goto fail;
-                    if (default_label_pos >= 0) {
-                        js_parse_error(s, "duplicate default");
-                        goto fail;
-                    }
-                    if (label_case < 0) {
-                        /* falling thru direct from switch expression */
-                        label_case = emit_goto(s, OP_goto, -1);
-                    }
-                    /* Emit a dummy label opcode. Label will be patched after
-                       the end of the switch body. Do not use emit_label(s, 0)
-                       because it would clobber label 0 address, preventing
-                       proper optimizer operation.
-                     */
-                    emit_op(s, OP_label);
-                    emit_u32(s, 0);
-                    default_label_pos = s->cur_func->byte_code.size - 4;
-                } else {
-                    if (label_case < 0) {
-                        /* falling thru direct from switch expression */
-                        js_parse_error(s, "invalid switch statement");
-                        goto fail;
-                    }
-                    if (js_parse_statement_or_decl(s, DECL_MASK_ALL))
-                        goto fail;
-                }
-            }
-            if (js_parse_expect(s, '}'))
-                goto fail;
-            if (default_label_pos >= 0) {
-                /* Ugly patch for the the `default` label, shameful and risky */
-                put_u32(s->cur_func->byte_code.buf + default_label_pos,
-                        label_case);
-                s->cur_func->label_slots[label_case].pos = default_label_pos + 4;
-            } else {
-                emit_label(s, label_case);
-            }
-            emit_label(s, label_break);
-            emit_op(s, OP_drop); /* drop the switch expression */
-
-            pop_break_entry(s->cur_func);
-            pop_scope(s);
-        }
-        break;
-    case TOK_TRY:
-        {
-            int label_catch, label_catch2, label_finally, label_end;
-            JSAtom name;
-            BlockEnv block_env;
-
-            set_eval_ret_undefined(s);
-            if (next_token(s))
-                goto fail;
-            label_catch = new_label(s);
-            label_catch2 = new_label(s);
-            label_finally = new_label(s);
-            label_end = new_label(s);
-
-            emit_goto(s, OP_catch, label_catch);
-
-            push_break_entry(s->cur_func, &block_env,
-                             JS_ATOM_NULL, -1, -1, 1);
-            block_env.label_finally = label_finally;
-
-            if (js_parse_block(s))
-                goto fail;
-
-            pop_break_entry(s->cur_func);
-
-            if (js_is_live_code(s)) {
-                /* drop the catch offset */
-                emit_op(s, OP_drop);
-                /* must push dummy value to keep same stack size */
-                emit_op(s, OP_undefined);
-                emit_goto(s, OP_gosub, label_finally);
-                emit_op(s, OP_drop);
-
-                emit_goto(s, OP_goto, label_end);
-            }
-
-            if (s->token.val == TOK_CATCH) {
-                if (next_token(s))
-                    goto fail;
-
-                push_scope(s);  /* catch variable */
-                emit_label(s, label_catch);
-
-                if (s->token.val == '{') {
-                    /* support optional-catch-binding feature */
-                    emit_op(s, OP_drop);    /* pop the exception object */
-                } else {
-                    if (js_parse_expect(s, '('))
-                        goto fail;
-                    if (!(s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved)) {
-                        if (s->token.val == '[' || s->token.val == '{') {
-                            /* XXX: TOK_LET is not completely correct */
-                            if (js_parse_destructing_element(s, TOK_LET, 0, TRUE, -1, TRUE))
-                                goto fail;
-                        } else {
-                            js_parse_error(s, "identifier expected");
-                            goto fail;
-                        }
-                    } else {
-                        name = JS_DupAtom(ctx, s->token.u.ident.atom);
-                        if (next_token(s)
-                        ||  js_define_var(s, name, TOK_CATCH) < 0) {
-                            JS_FreeAtom(ctx, name);
-                            goto fail;
-                        }
-                        /* store the exception value in the catch variable */
-                        emit_op(s, OP_scope_put_var);
-                        emit_u32(s, name);
-                        emit_u16(s, s->cur_func->scope_level);
-                    }
-                    if (js_parse_expect(s, ')'))
-                        goto fail;
-                }
-                /* XXX: should keep the address to nop it out if there is no finally block */
-                emit_goto(s, OP_catch, label_catch2);
-
-                push_scope(s);  /* catch block */
-                push_break_entry(s->cur_func, &block_env, JS_ATOM_NULL,
-                                 -1, -1, 1);
-                block_env.label_finally = label_finally;
-
-                if (js_parse_block(s))
-                    goto fail;
-
-                pop_break_entry(s->cur_func);
-                pop_scope(s);  /* catch block */
-                pop_scope(s);  /* catch variable */
-
-                if (js_is_live_code(s)) {
-                    /* drop the catch2 offset */
-                    emit_op(s, OP_drop);
-                    /* XXX: should keep the address to nop it out if there is no finally block */
-                    /* must push dummy value to keep same stack size */
-                    emit_op(s, OP_undefined);
-                    emit_goto(s, OP_gosub, label_finally);
-                    emit_op(s, OP_drop);
-                    emit_goto(s, OP_goto, label_end);
-                }
-                /* catch exceptions thrown in the catch block to execute the
-                 * finally clause and rethrow the exception */
-                emit_label(s, label_catch2);
-                /* catch value is at TOS, no need to push undefined */
-                emit_goto(s, OP_gosub, label_finally);
-                emit_op(s, OP_throw);
-
-            } else if (s->token.val == TOK_FINALLY) {
-                /* finally without catch : execute the finally clause
-                 * and rethrow the exception */
-                emit_label(s, label_catch);
-                /* catch value is at TOS, no need to push undefined */
-                emit_goto(s, OP_gosub, label_finally);
-                emit_op(s, OP_throw);
-            } else {
-                js_parse_error(s, "expecting catch or finally");
-                goto fail;
-            }
-            emit_label(s, label_finally);
-            if (s->token.val == TOK_FINALLY) {
-                int saved_eval_ret_idx;
-                if (next_token(s))
-                    goto fail;
-                /* on the stack: ret_value gosub_ret_value */
-                push_break_entry(s->cur_func, &block_env, JS_ATOM_NULL,
-                                 -1, -1, 2);
-                saved_eval_ret_idx = s->cur_func->eval_ret_idx;
-                s->cur_func->eval_ret_idx = -1;
-                /* 'finally' does not update eval_ret */
-                if (js_parse_block(s))
-                    goto fail;
-                s->cur_func->eval_ret_idx = saved_eval_ret_idx;
-                pop_break_entry(s->cur_func);
-            }
-            emit_op(s, OP_ret);
-            emit_label(s, label_end);
-        }
-        break;
-    case ';':
-        /* empty statement */
-        if (next_token(s))
-            goto fail;
-        break;
-    case TOK_WITH:
-        if (s->cur_func->js_mode & JS_MODE_STRICT) {
-            js_parse_error(s, "invalid keyword: with");
-            goto fail;
-        } else {
-            int with_idx;
-
-            if (next_token(s))
-                goto fail;
-
-            if (js_parse_expr_paren(s))
-                goto fail;
-
-            push_scope(s);
-            with_idx = define_var(s, s->cur_func, JS_ATOM__with_, TOK_WITH);
-            if (with_idx < 0)
-                goto fail;
-            emit_op(s, OP_to_object);
-            emit_op(s, OP_put_loc);
-            emit_u16(s, with_idx);
-
-            set_eval_ret_undefined(s);
-            if (js_parse_statement(s))
-                goto fail;
-
-            /* Popping scope drops lexical context for the with object variable */
-            pop_scope(s);
-        }
-        break;
-    case TOK_FUNCTION:
-        /* ES6 Annex B.3.2 and B.3.3 semantics */
-        if (!(decl_mask & DECL_MASK_FUNC))
-            goto func_decl_error;
-        if (!(decl_mask & DECL_MASK_OTHER) && peek_token(s, FALSE) == '*')
-            goto func_decl_error;
-        goto parse_func_var;
-    case TOK_IDENT:
-        if (s->token.u.ident.is_reserved) {
-            js_parse_error_reserved_identifier(s);
-            goto fail;
-        }
-        /* Determine if `let` introduces a Declaration or an ExpressionStatement */
-        switch (is_let(s, decl_mask)) {
-        case TRUE:
-            tok = TOK_LET;
-            goto haslet;
-        case FALSE:
-            break;
-        default:
-            goto fail;
-        }
-        if (token_is_pseudo_keyword(s, JS_ATOM_async) &&
-            peek_token(s, TRUE) == TOK_FUNCTION) {
-            if (!(decl_mask & DECL_MASK_OTHER)) {
-            func_decl_error:
-                js_parse_error(s, "function declarations can't appear in single-statement context");
-                goto fail;
-            }
-        parse_func_var:
-            if (js_parse_function_decl(s, JS_PARSE_FUNC_VAR,
-                                       JS_FUNC_NORMAL, JS_ATOM_NULL,
-                                       s->token.ptr, s->token.line_num))
-                goto fail;
-            break;
-        }
-        goto hasexpr;
-
-    case TOK_CLASS:
-        if (!(decl_mask & DECL_MASK_OTHER)) {
-            js_parse_error(s, "class declarations can't appear in single-statement context");
-            goto fail;
-        }
-        if (js_parse_class(s, FALSE, JS_PARSE_EXPORT_NONE))
-            return -1;
-        break;
-
-    case TOK_DEBUGGER:
-    case TOK_ENUM:
-    case TOK_EXPORT:
-    case TOK_EXTENDS:
-        js_unsupported_keyword(s, s->token.u.ident.atom);
-        goto fail;
-
-    default:
-    hasexpr:
-        if (js_parse_expr(s))
-            goto fail;
-        if (s->cur_func->eval_ret_idx >= 0) {
-            /* store the expression value so that it can be returned
-               by eval() */
-            emit_op(s, OP_put_loc);
-            emit_u16(s, s->cur_func->eval_ret_idx);
-        } else {
-            emit_op(s, OP_drop); /* drop the result */
-        }
-        if (js_parse_expect_semi(s))
-            goto fail;
-        break;
-    }
-done:
-    JS_FreeAtom(ctx, label_name);
-    return 0;
-fail:
-    JS_FreeAtom(ctx, label_name);
-    return -1;
-}
-
-/* 'name' is freed */
-static JSModuleDef *js_new_module_def(JSContext *ctx, JSAtom name)
-{
-    JSModuleDef *m;
-    m = js_mallocz(ctx, sizeof(*m));
-    if (!m) {
-        JS_FreeAtom(ctx, name);
-        return NULL;
-    }
-    m->header.ref_count = 1;
-    m->module_name = name;
-    m->module_ns = JS_UNDEFINED;
-    m->func_obj = JS_UNDEFINED;
-    m->eval_exception = JS_UNDEFINED;
-    list_add_tail(&m->link, &ctx->loaded_modules);
-    return m;
-}
-
-static void js_free_module_def(JSContext *ctx, JSModuleDef *m)
-{
-    int i;
-
-    JS_FreeAtom(ctx, m->module_name);
-
-    for(i = 0; i < m->req_module_entries_count; i++) {
-        JSReqModuleEntry *rme = &m->req_module_entries[i];
-        JS_FreeAtom(ctx, rme->module_name);
-    }
-    js_free(ctx, m->req_module_entries);
-
-    for(i = 0; i < m->export_entries_count; i++) {
-        JSExportEntry *me = &m->export_entries[i];
-        if (me->export_type == JS_EXPORT_TYPE_LOCAL)
-            free_var_ref(ctx->rt, me->u.local.var_ref);
-        JS_FreeAtom(ctx, me->export_name);
-        JS_FreeAtom(ctx, me->local_name);
-    }
-    js_free(ctx, m->export_entries);
-
-    js_free(ctx, m->star_export_entries);
-
-    for(i = 0; i < m->import_entries_count; i++) {
-        JSImportEntry *mi = &m->import_entries[i];
-        JS_FreeAtom(ctx, mi->import_name);
-    }
-    js_free(ctx, m->import_entries);
-
-    JS_FreeValue(ctx, m->module_ns);
-    JS_FreeValue(ctx, m->func_obj);
-    JS_FreeValue(ctx, m->eval_exception);
-    list_del(&m->link);
-    js_free(ctx, m);
-}
-
-static int js_resize_array(JSContext *ctx, void **parray, int elem_size,
-                           int *psize, int *pcount, int new_count)
-{
-    if (unlikely(new_count > *psize)) {
-        int new_size;
-        size_t slack;
-        void *new_array;
-        /* XXX: potential arithmetic overflow */
-        new_size = max_int(new_count, *psize * 3 / 2);
-        new_array = js_realloc2(ctx, *parray, new_size * elem_size, &slack);
-        if (!new_array)
-            return -1;
-        new_size += slack / elem_size;
-        *psize = new_size;
-        *parray = new_array;
-    }
-    *pcount = new_count;
-    return 0;
-}
-
-static int add_req_module_entry(JSContext *ctx, JSModuleDef *m,
-                                JSAtom module_name)
-{
-    JSReqModuleEntry *rme;
-    int i;
-
-    /* no need to add the module request if it is already present */
-    for(i = 0; i < m->req_module_entries_count; i++) {
-        rme = &m->req_module_entries[i];
-        if (rme->module_name == module_name)
-            return i;
-    }
-
-    if (js_resize_array(ctx, (void **)&m->req_module_entries,
-                        sizeof(JSReqModuleEntry),
-                        &m->req_module_entries_size, &m->req_module_entries_count,
-                        m->req_module_entries_count + 1))
-        return -1;
-    i = m->req_module_entries_count - 1;
-    rme = &m->req_module_entries[i];
-    rme->module_name = JS_DupAtom(ctx, module_name);
-    rme->module = NULL;
-    return i;
-}
-
-static JSExportEntry *find_export_entry(JSContext *ctx, JSModuleDef *m,
-                                        JSAtom export_name)
-{
-    JSExportEntry *me;
-    int i;
-    for(i = 0; i < m->export_entries_count; i++) {
-        me = &m->export_entries[i];
-        if (me->export_name == export_name)
-            return me;
-    }
-    return NULL;
-}
-
-static JSExportEntry *add_export_entry2(JSContext *ctx,
-                                        JSParseState *s, JSModuleDef *m,
-                                       JSAtom local_name, JSAtom export_name,
-                                       JSExportTypeEnum export_type)
-{
-    JSExportEntry *me;
-
-    if (find_export_entry(ctx, m, export_name)) {
-        char buf1[ATOM_GET_STR_BUF_SIZE];
-        if (s) {
-            js_parse_error(s, "duplicate exported name '%s'",
-                           JS_AtomGetStr(ctx, buf1, sizeof(buf1), export_name));
-        } else {
-            JS_ThrowSyntaxError(ctx, "duplicate exported name '%s'",
-                                JS_AtomGetStr(ctx, buf1, sizeof(buf1), export_name));
-        }
-        return NULL;
-    }
-
-    if (js_resize_array(ctx, (void **)&m->export_entries,
-                        sizeof(JSExportEntry),
-                        &m->export_entries_size, &m->export_entries_count,
-                        m->export_entries_count + 1))
-        return NULL;
-    me = &m->export_entries[m->export_entries_count - 1];
-    memset(me, 0, sizeof(*me));
-    me->local_name = JS_DupAtom(ctx, local_name);
-    me->export_name = JS_DupAtom(ctx, export_name);
-    me->export_type = export_type;
-    return me;
-}
-
-static JSExportEntry *add_export_entry(JSParseState *s, JSModuleDef *m,
-                                       JSAtom local_name, JSAtom export_name,
-                                       JSExportTypeEnum export_type)
-{
-    return add_export_entry2(s->ctx, s, m, local_name, export_name,
-                             export_type);
-}
-
-static int add_star_export_entry(JSContext *ctx, JSModuleDef *m,
-                                 int req_module_idx)
-{
-    JSStarExportEntry *se;
-
-    if (js_resize_array(ctx, (void **)&m->star_export_entries,
-                        sizeof(JSStarExportEntry),
-                        &m->star_export_entries_size, &m->star_export_entries_count,
-                        m->star_export_entries_count + 1))
-        return -1;
-    se = &m->star_export_entries[m->star_export_entries_count - 1];
-    se->req_module_idx = req_module_idx;
-    return 0;
-}
-
-/* create a C module */
-JSModuleDef *JS_NewCModule(JSContext *ctx, const char *name_str,
-                           JSModuleInitFunc *func)
-{
-    JSModuleDef *m;
-    JSAtom name;
-    name = JS_NewAtom(ctx, name_str);
-    if (name == JS_ATOM_NULL)
-        return NULL;
-    m = js_new_module_def(ctx, name);
-    m->init_func = func;
-    return m;
-}
-
-int JS_AddModuleExport(JSContext *ctx, JSModuleDef *m, const char *export_name)
-{
-    JSExportEntry *me;
-    JSAtom name;
-    name = JS_NewAtom(ctx, export_name);
-    if (name == JS_ATOM_NULL)
-        return -1;
-    me = add_export_entry2(ctx, NULL, m, JS_ATOM_NULL, name,
-                           JS_EXPORT_TYPE_LOCAL);
-    JS_FreeAtom(ctx, name);
-    if (!me)
-        return -1;
-    else
-        return 0;
-}
-
-int JS_SetModuleExport(JSContext *ctx, JSModuleDef *m, const char *export_name,
-                       JSValue val)
-{
-    JSExportEntry *me;
-    JSAtom name;
-    name = JS_NewAtom(ctx, export_name);
-    if (name == JS_ATOM_NULL)
-        goto fail;
-    me = find_export_entry(ctx, m, name);
-    JS_FreeAtom(ctx, name);
-    if (!me)
-        goto fail;
-    set_value(ctx, me->u.local.var_ref->pvalue, val);
-    return 0;
- fail:
-    JS_FreeValue(ctx, val);
-    return -1;
-}
-
-void JS_SetModuleLoaderFunc(JSRuntime *rt,
-                            JSModuleNormalizeFunc *module_normalize,
-                            JSModuleLoaderFunc *module_loader, void *opaque)
-{
-    rt->module_normalize_func = module_normalize;
-    rt->module_loader_func = module_loader;
-    rt->module_loader_opaque = opaque;
-}
-
-/* default module filename normalizer */
-static char *js_default_module_normalize_name(JSContext *ctx,
-                                              const char *base_name,
-                                              const char *name)
-{
-    char *filename, *p;
-    const char *r;
-    int len;
-
-    if (name[0] != '.') {
-        /* if no initial dot, the module name is not modified */
-        return js_strdup(ctx, name);
-    }
-
-    p = strrchr(base_name, '/');
-    if (p)
-        len = p - base_name;
-    else
-        len = 0;
-
-    filename = js_malloc(ctx, len + strlen(name) + 1 + 1);
-    if (!filename)
-        return NULL;
-    memcpy(filename, base_name, len);
-    filename[len] = '\0';
-
-    /* we only normalize the leading '..' or '.' */
-    r = name;
-    for(;;) {
-        if (r[0] == '.' && r[1] == '/') {
-            r += 2;
-        } else if (r[0] == '.' && r[1] == '.' && r[2] == '/') {
-            if (filename[0] == '\0')
-                break;
-            p = strrchr(filename, '/');
-            if (!p)
-                p = filename;
-            *p = '\0';
-            r += 3;
-        } else {
-            break;
-        }
-    }
-    if (filename[0] != '\0')
-        strcat(filename, "/");
-    strcat(filename, r);
-    //    printf("normalize: %s %s -> %s\n", base_name, name, filename);
-    return filename;
-}
-
-/* return NULL in case of exception (e.g. module could not be loaded) */
-static JSModuleDef *js_host_resolve_imported_module(JSContext *ctx,
-                                                    JSAtom base_module_name,
-                                                    JSAtom module_name1)
-{
-    JSRuntime *rt = ctx->rt;
-    struct list_head *el;
-    JSModuleDef *m;
-    char *cname;
-    const char *base_cname, *cname1;
-    JSAtom module_name;
-
-    base_cname = JS_AtomToCString(ctx, base_module_name);
-    if (!base_cname)
-        return NULL;
-    cname1 = JS_AtomToCString(ctx, module_name1);
-    if (!cname1) {
-        JS_FreeCString(ctx, base_cname);
-        return NULL;
-    }
-
-    if (!rt->module_normalize_func) {
-        cname = js_default_module_normalize_name(ctx, base_cname, cname1);
-    } else {
-        cname = rt->module_normalize_func(ctx, base_cname, cname1,
-                                          rt->module_loader_opaque);
-    }
-    JS_FreeCString(ctx, base_cname);
-    JS_FreeCString(ctx, cname1);
-    if (!cname)
-        return NULL;
-
-    module_name = JS_NewAtom(ctx, cname);
-    if (module_name == JS_ATOM_NULL) {
-        js_free(ctx, cname);
-        return NULL;
-    }
-
-    /* first look at the loaded modules */
-    list_for_each(el, &ctx->loaded_modules) {
-        m = list_entry(el, JSModuleDef, link);
-        if (m->module_name == module_name) {
-            js_free(ctx, cname);
-            JS_FreeAtom(ctx, module_name);
-            return m;
-        }
-    }
-
-    JS_FreeAtom(ctx, module_name);
-
-    /* load the module */
-    if (!rt->module_loader_func) {
-        /* XXX: use a syntax error ? */
-        JS_ThrowReferenceError(ctx, "could not load module '%s'",
-                               cname);
-        js_free(ctx, cname);
-        return NULL;
-    }
-
-    m = rt->module_loader_func(ctx, cname, rt->module_loader_opaque);
-    js_free(ctx, cname);
-    return m;
-}
-
-typedef struct JSResolveEntry {
-    JSModuleDef *module;
-    JSAtom name;
-} JSResolveEntry;
-
-typedef struct JSResolveState {
-    JSResolveEntry *array;
-    int size;
-    int count;
-} JSResolveState;
-
-static int find_resolve_entry(JSResolveState *s,
-                              JSModuleDef *m, JSAtom name)
-{
-    int i;
-    for(i = 0; i < s->count; i++) {
-        JSResolveEntry *re = &s->array[i];
-        if (re->module == m && re->name == name)
-            return i;
-    }
-    return -1;
-}
-
-static int add_resolve_entry(JSContext *ctx, JSResolveState *s,
-                             JSModuleDef *m, JSAtom name)
-{
-    JSResolveEntry *re;
-
-    if (js_resize_array(ctx, (void **)&s->array,
-                        sizeof(JSResolveEntry),
-                        &s->size, &s->count,
-                        s->count + 1))
-        return -1;
-    re = &s->array[s->count - 1];
-    re->module = m;
-    re->name = JS_DupAtom(ctx, name);
-    return 0;
-}
-
-typedef enum JSResolveResultEnum {
-    JS_RESOLVE_RES_EXCEPTION = -1, /* memory alloc error */
-    JS_RESOLVE_RES_FOUND = 0,
-    JS_RESOLVE_RES_NOT_FOUND,
-    JS_RESOLVE_RES_CIRCULAR,
-    JS_RESOLVE_RES_AMBIGUOUS,
-} JSResolveResultEnum;
-
-static JSResolveResultEnum js_resolve_export1(JSContext *ctx,
-                                              JSModuleDef **pmodule,
-                                              JSExportEntry **pme,
-                                              JSModuleDef *m,
-                                              JSAtom export_name,
-                                              JSResolveState *s)
-{
-    JSExportEntry *me;
-
-    *pmodule = NULL;
-    *pme = NULL;
-    if (find_resolve_entry(s, m, export_name) >= 0)
-        return JS_RESOLVE_RES_CIRCULAR;
-    if (add_resolve_entry(ctx, s, m, export_name) < 0)
-        return JS_RESOLVE_RES_EXCEPTION;
-    me = find_export_entry(ctx, m, export_name);
-    if (me) {
-        if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
-            /* local export */
-            *pmodule = m;
-            *pme = me;
-            return JS_RESOLVE_RES_FOUND;
-        } else {
-            /* indirect export */
-            JSModuleDef *m1;
-            m1 = m->req_module_entries[me->u.req_module_idx].module;
-            if (me->local_name == JS_ATOM__star_) {
-                /* export ns from */
-                *pmodule = m;
-                *pme = me;
-                return JS_RESOLVE_RES_FOUND;
-            } else {
-                return js_resolve_export1(ctx, pmodule, pme, m1,
-                                          me->local_name, s);
-            }
-        }
-    } else {
-        if (export_name != JS_ATOM_default) {
-            /* not found in direct or indirect exports: try star exports */
-            int i;
-
-            for(i = 0; i < m->star_export_entries_count; i++) {
-                JSStarExportEntry *se = &m->star_export_entries[i];
-                JSModuleDef *m1, *res_m;
-                JSExportEntry *res_me;
-                JSResolveResultEnum ret;
-
-                m1 = m->req_module_entries[se->req_module_idx].module;
-                ret = js_resolve_export1(ctx, &res_m, &res_me, m1,
-                                         export_name, s);
-                if (ret == JS_RESOLVE_RES_AMBIGUOUS ||
-                    ret == JS_RESOLVE_RES_EXCEPTION) {
-                    return ret;
-                } else if (ret == JS_RESOLVE_RES_FOUND) {
-                    if (*pme != NULL) {
-                        if (*pmodule != res_m ||
-                            res_me->local_name != (*pme)->local_name) {
-                            *pmodule = NULL;
-                            *pme = NULL;
-                            return JS_RESOLVE_RES_AMBIGUOUS;
-                        }
-                    } else {
-                        *pmodule = res_m;
-                        *pme = res_me;
-                    }
-                }
-            }
-            if (*pme != NULL)
-                return JS_RESOLVE_RES_FOUND;
-        }
-        return JS_RESOLVE_RES_NOT_FOUND;
-    }
-}
-
-/* If the return value is JS_RESOLVE_RES_FOUND, return the module
-  (*pmodule) and the corresponding local export entry
-  (*pme). Otherwise return (NULL, NULL) */
-static JSResolveResultEnum js_resolve_export(JSContext *ctx,
-                                             JSModuleDef **pmodule,
-                                             JSExportEntry **pme,
-                                             JSModuleDef *m,
-                                             JSAtom export_name)
-{
-    JSResolveState ss, *s = &ss;
-    int i;
-    JSResolveResultEnum ret;
-
-    s->array = NULL;
-    s->size = 0;
-    s->count = 0;
-
-    ret = js_resolve_export1(ctx, pmodule, pme, m, export_name, s);
-
-    for(i = 0; i < s->count; i++)
-        JS_FreeAtom(ctx, s->array[i].name);
-    js_free(ctx, s->array);
-
-    return ret;
-}
-
-static void js_resolve_export_throw_error(JSContext *ctx,
-                                          JSResolveResultEnum res,
-                                          JSModuleDef *m, JSAtom export_name)
-{
-    char buf1[ATOM_GET_STR_BUF_SIZE];
-    char buf2[ATOM_GET_STR_BUF_SIZE];
-    switch(res) {
-    case JS_RESOLVE_RES_EXCEPTION:
-        break;
-    default:
-    case JS_RESOLVE_RES_NOT_FOUND:
-        JS_ThrowSyntaxError(ctx, "export '%s' in module '%s' is ambiguous",
-                            JS_AtomGetStr(ctx, buf1, sizeof(buf1), export_name),
-                            JS_AtomGetStr(ctx, buf2, sizeof(buf2), m->module_name));
-        break;
-    case JS_RESOLVE_RES_CIRCULAR:
-        JS_ThrowSyntaxError(ctx, "Could not find export '%s' in module '%s'",
-                            JS_AtomGetStr(ctx, buf1, sizeof(buf1), export_name),
-                            JS_AtomGetStr(ctx, buf2, sizeof(buf2), m->module_name));
-        break;
-    case JS_RESOLVE_RES_AMBIGUOUS:
-        JS_ThrowSyntaxError(ctx, "circular reference when looking for export '%s' in module '%s'",
-                            JS_AtomGetStr(ctx, buf1, sizeof(buf1), export_name),
-                            JS_AtomGetStr(ctx, buf2, sizeof(buf2), m->module_name));
-        break;
-    }
-}
-
-
-typedef enum {
-    EXPORTED_NAME_AMBIGUOUS,
-    EXPORTED_NAME_NORMAL,
-    EXPORTED_NAME_NS,
-} ExportedNameEntryEnum;
-
-typedef struct ExportedNameEntry {
-    JSAtom export_name;
-    ExportedNameEntryEnum export_type;
-    union {
-        JSExportEntry *me; /* using when the list is built */
-        JSVarRef *var_ref; /* EXPORTED_NAME_NORMAL */
-        JSModuleDef *module; /* for EXPORTED_NAME_NS */
-    } u;
-} ExportedNameEntry;
-
-typedef struct GetExportNamesState {
-    JSModuleDef **modules;
-    int modules_size;
-    int modules_count;
-
-    ExportedNameEntry *exported_names;
-    int exported_names_size;
-    int exported_names_count;
-} GetExportNamesState;
-
-static int find_exported_name(GetExportNamesState *s, JSAtom name)
-{
-    int i;
-    for(i = 0; i < s->exported_names_count; i++) {
-        if (s->exported_names[i].export_name == name)
-            return i;
-    }
-    return -1;
-}
-
-static __exception int get_exported_names(JSContext *ctx,
-                                          GetExportNamesState *s,
-                                          JSModuleDef *m, BOOL from_star)
-{
-    ExportedNameEntry *en;
-    int i, j;
-
-    /* check circular reference */
-    for(i = 0; i < s->modules_count; i++) {
-        if (s->modules[i] == m)
-            return 0;
-    }
-    if (js_resize_array(ctx, (void **)&s->modules, sizeof(s->modules[0]),
-                        &s->modules_size, &s->modules_count, s->modules_count + 1))
-        return -1;
-    s->modules[s->modules_count - 1] = m;
-
-    for(i = 0; i < m->export_entries_count; i++) {
-        JSExportEntry *me = &m->export_entries[i];
-        if (from_star && me->export_name == JS_ATOM_default)
-            continue;
-        j = find_exported_name(s, me->export_name);
-        if (j < 0) {
-            if (js_resize_array(ctx, (void **)&s->exported_names, sizeof(s->exported_names[0]),
-                                &s->exported_names_size, &s->exported_names_count, s->exported_names_count + 1))
-                return -1;
-            en = &s->exported_names[s->exported_names_count - 1];
-            en->export_name = me->export_name;
-            /* avoid a second lookup for simple module exports */
-            if (from_star || me->export_type != JS_EXPORT_TYPE_LOCAL)
-                en->u.me = NULL;
-            else
-                en->u.me = me;
-        } else {
-            en = &s->exported_names[j];
-            en->u.me = NULL;
-        }
-    }
-    for(i = 0; i < m->star_export_entries_count; i++) {
-        JSStarExportEntry *se = &m->star_export_entries[i];
-        JSModuleDef *m1;
-        m1 = m->req_module_entries[se->req_module_idx].module;
-        if (get_exported_names(ctx, s, m1, TRUE))
-            return -1;
-    }
-    return 0;
-}
-
-/* Unfortunately, the spec gives a different behavior from GetOwnProperty ! */
-static int js_module_ns_has(JSContext *ctx, JSValueConst obj, JSAtom atom)
-{
-    return (find_own_property1(JS_VALUE_GET_OBJ(obj), atom) != NULL);
-}
-
-static const JSClassExoticMethods js_module_ns_exotic_methods = {
-    .has_property = js_module_ns_has,
-};
-
-static int exported_names_cmp(const void *p1, const void *p2, void *opaque)
-{
-    JSContext *ctx = opaque;
-    const ExportedNameEntry *me1 = p1;
-    const ExportedNameEntry *me2 = p2;
-    JSValue str1, str2;
-    int ret;
-
-    /* XXX: should avoid allocation memory in atom comparison */
-    str1 = JS_AtomToString(ctx, me1->export_name);
-    str2 = JS_AtomToString(ctx, me2->export_name);
-    if (JS_IsException(str1) || JS_IsException(str2)) {
-        /* XXX: raise an error ? */
-        ret = 0;
-    } else {
-        ret = js_string_compare(ctx, JS_VALUE_GET_STRING(str1),
-                                JS_VALUE_GET_STRING(str2));
-    }
-    JS_FreeValue(ctx, str1);
-    JS_FreeValue(ctx, str2);
-    return ret;
-}
-
-static JSValue js_get_module_ns(JSContext *ctx, JSModuleDef *m);
-
-static int js_module_ns_autoinit(JSContext *ctx, JSObject *p, JSAtom atom,
-                                 void *opaque)
-{
-    JSModuleDef *m = opaque;
-    JSValue val, this_val = JS_MKPTR(JS_TAG_OBJECT, p);
-    
-    val = js_get_module_ns(ctx, m);
-    if (JS_IsException(val))
-        return -1;
-    if (JS_DefinePropertyValue(ctx, this_val, atom, val,
-                               JS_PROP_ENUMERABLE | JS_PROP_WRITABLE) < 0)
-        return -1;
-    return 0;
-}
-
-static JSValue js_build_module_ns(JSContext *ctx, JSModuleDef *m)
-{
-    JSValue obj;
-    JSObject *p;
-    GetExportNamesState s_s, *s = &s_s;
-    int i, ret;
-    JSProperty *pr;
-
-    obj = JS_NewObjectClass(ctx, JS_CLASS_MODULE_NS);
-    if (JS_IsException(obj))
-        return obj;
-    p = JS_VALUE_GET_OBJ(obj);
-
-    memset(s, 0, sizeof(*s));
-    ret = get_exported_names(ctx, s, m, FALSE);
-    js_free(ctx, s->modules);
-    if (ret)
-        goto fail;
-
-    /* Resolve the exported names. The ambiguous exports are removed */
-    for(i = 0; i < s->exported_names_count; i++) {
-        ExportedNameEntry *en = &s->exported_names[i];
-        JSResolveResultEnum res;
-        JSExportEntry *res_me;
-        JSModuleDef *res_m;
-
-        if (en->u.me) {
-            res_me = en->u.me; /* fast case: no resolution needed */
-            res_m = m;
-            res = JS_RESOLVE_RES_FOUND;
-        } else {
-            res = js_resolve_export(ctx, &res_m, &res_me, m,
-                                    en->export_name);
-        }
-        if (res != JS_RESOLVE_RES_FOUND) {
-            if (res != JS_RESOLVE_RES_AMBIGUOUS) {
-                js_resolve_export_throw_error(ctx, res, m, en->export_name);
-                goto fail;
-            }
-            en->export_type = EXPORTED_NAME_AMBIGUOUS;
-        } else {
-            if (res_me->local_name == JS_ATOM__star_) {
-                en->export_type = EXPORTED_NAME_NS;
-                en->u.module = res_m->req_module_entries[res_me->u.req_module_idx].module;
-            } else {
-                en->export_type = EXPORTED_NAME_NORMAL;
-                if (res_me->u.local.var_ref) {
-                    en->u.var_ref = res_me->u.local.var_ref;
-                } else {
-                    JSObject *p1 = JS_VALUE_GET_OBJ(res_m->func_obj);
-                    p1 = JS_VALUE_GET_OBJ(res_m->func_obj);
-                    en->u.var_ref = p1->u.func.var_refs[res_me->u.local.var_idx];
-                }
-            }
-        }
-    }
-
-    /* sort the exported names */
-    rqsort(s->exported_names, s->exported_names_count,
-           sizeof(s->exported_names[0]), exported_names_cmp, ctx);
-
-    for(i = 0; i < s->exported_names_count; i++) {
-        ExportedNameEntry *en = &s->exported_names[i];
-        switch(en->export_type) {
-        case EXPORTED_NAME_NORMAL:
-            {
-                JSVarRef *var_ref = en->u.var_ref;
-                pr = add_property(ctx, p, en->export_name,
-                                  JS_PROP_ENUMERABLE | JS_PROP_WRITABLE |
-                                  JS_PROP_VARREF);
-                if (!pr)
-                    goto fail;
-                var_ref->header.ref_count++;
-                pr->u.var_ref = var_ref;
-            }
-            break;
-        case EXPORTED_NAME_NS:
-            /* the exported namespace must be created on demand */
-            if (JS_DefineAutoInitProperty(ctx, obj,
-                                          en->export_name,
-                                          js_module_ns_autoinit,
-                                          en->u.module, JS_PROP_ENUMERABLE | JS_PROP_WRITABLE) < 0)
-                goto fail;
-            break;
-        default:
-            break;
-        }
-    }
-
-    js_free(ctx, s->exported_names);
-
-    JS_DefinePropertyValue(ctx, obj, JS_ATOM_Symbol_toStringTag,
-                           JS_AtomToString(ctx, JS_ATOM_Module),
-                           0);
-
-    p->extensible = FALSE;
-    return obj;
- fail:
-    js_free(ctx, s->exported_names);
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_get_module_ns(JSContext *ctx, JSModuleDef *m)
-{
-    if (JS_IsUndefined(m->module_ns)) {
-        JSValue val;
-        val = js_build_module_ns(ctx, m);
-        if (JS_IsException(val))
-            return JS_EXCEPTION;
-        m->module_ns = val;
-    }
-    return JS_DupValue(ctx, m->module_ns);
-}
-
-/* Load all the required modules for module 'm' */
-static int js_resolve_module(JSContext *ctx, JSModuleDef *m)
-{
-    int i;
-    JSModuleDef *m1;
-
-    if (m->resolved)
-        return 0;
-#ifdef DUMP_MODULE_RESOLVE
-    {
-        char buf1[ATOM_GET_STR_BUF_SIZE];
-        printf("resolving module '%s':\n", JS_AtomGetStr(ctx, buf1, sizeof(buf1), m->module_name));
-    }
-#endif
-    m->resolved = TRUE;
-    /* resolve each requested module */
-    for(i = 0; i < m->req_module_entries_count; i++) {
-        JSReqModuleEntry *rme = &m->req_module_entries[i];
-        m1 = js_host_resolve_imported_module(ctx, m->module_name,
-                                             rme->module_name);
-        if (!m1)
-            return -1;
-        rme->module = m1;
-        /* already done in js_host_resolve_imported_module() except if
-           the module was loaded with JS_EvalBinary() */
-        if (js_resolve_module(ctx, m1) < 0)
-            return -1;
-    }
-    return 0;
-}
-
-static JSVarRef *js_create_module_var(JSContext *ctx, BOOL is_lexical)
-{
-    JSVarRef *var_ref;
-    var_ref = js_malloc(ctx, sizeof(JSVarRef));
-    if (!var_ref)
-        return NULL;
-    var_ref->header.ref_count = 1;
-    var_ref->gc_header.mark = 0;
-    var_ref->link.prev = NULL;
-    var_ref->link.next = NULL;
-    if (is_lexical)
-        var_ref->value = JS_UNINITIALIZED;
-    else
-        var_ref->value = JS_UNDEFINED;
-    var_ref->pvalue = &var_ref->value;
-    return var_ref;
-}
-
-/* Create the <eval> function associated with the module */
-static int js_create_module_function(JSContext *ctx, JSModuleDef *m)
-{
-    JSFunctionBytecode *b;
-    int i;
-    JSVarRef **var_refs;
-    JSValue func_obj, bfunc;
-    JSObject *p;
-
-    bfunc = m->func_obj;
-    func_obj = JS_NewObjectProtoClass(ctx, ctx->function_proto,
-                                      JS_CLASS_BYTECODE_FUNCTION);
-
-    if (JS_IsException(func_obj))
-        return -1;
-    b = JS_VALUE_GET_PTR(bfunc);
-
-    p = JS_VALUE_GET_OBJ(func_obj);
-    p->u.func.function_bytecode = b;
-    b->header.ref_count++;
-    p->u.func.home_object = NULL;
-    p->u.func.var_refs = NULL;
-    if (b->closure_var_count) {
-        var_refs = js_mallocz(ctx, sizeof(var_refs[0]) * b->closure_var_count);
-        if (!var_refs)
-            goto fail;
-        p->u.func.var_refs = var_refs;
-
-        /* create the global variables. The other variables are
-           imported from other modules */
-        for(i = 0; i < b->closure_var_count; i++) {
-            JSClosureVar *cv = &b->closure_var[i];
-            JSVarRef *var_ref;
-            if (cv->is_local) {
-                var_ref = js_create_module_var(ctx, cv->is_lexical);
-                if (!var_ref)
-                    goto fail;
-#ifdef DUMP_MODULE_RESOLVE
-                printf("local %d: %p\n", i, var_ref);
-#endif
-                var_refs[i] = var_ref;
-            }
-        }
-    }
-    m->func_obj = func_obj;
-    JS_FreeValue(ctx, bfunc);
-    return 0;
- fail:
-    JS_FreeValue(ctx, func_obj);
-    return -1;
-}
-
-/* Prepare a module to be executed by resolving all the imported
-   variables. */
-static int js_instantiate_module(JSContext *ctx, JSModuleDef *m)
-{
-    int i;
-    JSImportEntry *mi;
-    JSModuleDef *m1;
-    JSVarRef **var_refs, *var_ref;
-    JSObject *p;
-    BOOL is_c_module;
-
-    if (m->instantiated)
-        return 0;
-    m->instantiated = TRUE;
-
-    is_c_module = (m->init_func != NULL);
-
-    if (is_c_module) {
-        /* initialize the exported variables */
-        for(i = 0; i < m->export_entries_count; i++) {
-            JSExportEntry *me = &m->export_entries[i];
-            if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
-                var_ref = js_create_module_var(ctx, FALSE);
-                if (!var_ref)
-                    goto fail;
-                me->u.local.var_ref = var_ref;
-            }
-        }
-    } else {
-        if (js_create_module_function(ctx, m) < 0)
-            goto fail;
-    }
-
-    for(i = 0; i < m->req_module_entries_count; i++) {
-        JSReqModuleEntry *rme = &m->req_module_entries[i];
-        if (js_instantiate_module(ctx, rme->module) < 0)
-            goto fail;
-    }
-
-#ifdef DUMP_MODULE_RESOLVE
-    {
-        char buf1[ATOM_GET_STR_BUF_SIZE];
-        printf("instantiating module '%s':\n", JS_AtomGetStr(ctx, buf1, sizeof(buf1), m->module_name));
-    }
-#endif
-    /* check the indirect exports */
-    for(i = 0; i < m->export_entries_count; i++) {
-        JSExportEntry *me = &m->export_entries[i];
-        if (me->export_type == JS_EXPORT_TYPE_INDIRECT &&
-            me->local_name != JS_ATOM__star_) {
-            JSResolveResultEnum ret;
-            JSExportEntry *res_me;
-            JSModuleDef *res_m, *m1;
-            m1 = m->req_module_entries[me->u.req_module_idx].module;
-            ret = js_resolve_export(ctx, &res_m, &res_me, m1, me->local_name);
-            if (ret != JS_RESOLVE_RES_FOUND) {
-                js_resolve_export_throw_error(ctx, ret, m, me->export_name);
-                goto fail;
-            }
-        }
-    }
-
-#ifdef DUMP_MODULE_RESOLVE
-    {
-        printf("exported bindings:\n");
-        for(i = 0; i < m->export_entries_count; i++) {
-            JSExportEntry *me = &m->export_entries[i];
-            printf(" name="); print_atom(ctx, me->export_name);
-            printf(" local="); print_atom(ctx, me->local_name);
-            printf(" type=%d idx=%d\n", me->export_type, me->u.local.var_idx);
-        }
-    }
-#endif
-
-    if (!is_c_module) {
-        p = JS_VALUE_GET_OBJ(m->func_obj);
-        var_refs = p->u.func.var_refs;
-
-        for(i = 0; i < m->import_entries_count; i++) {
-            mi = &m->import_entries[i];
-#ifdef DUMP_MODULE_RESOLVE
-            printf("import var_idx=%d name=", mi->var_idx);
-            print_atom(ctx, mi->import_name);
-            printf(": ");
-#endif
-            m1 = m->req_module_entries[mi->req_module_idx].module;
-            if (mi->import_name == JS_ATOM__star_) {
-                JSValue val;
-                /* name space import */
-                val = js_get_module_ns(ctx, m1);
-                if (JS_IsException(val))
-                    goto fail;
-                set_value(ctx, &var_refs[mi->var_idx]->value, val);
-#ifdef DUMP_MODULE_RESOLVE
-                printf("namespace\n");
-#endif
-            } else {
-                JSResolveResultEnum ret;
-                JSExportEntry *res_me;
-                JSModuleDef *res_m;
-                JSObject *p1;
-
-                ret = js_resolve_export(ctx, &res_m,
-                                        &res_me, m1, mi->import_name);
-                if (ret != JS_RESOLVE_RES_FOUND) {
-                    js_resolve_export_throw_error(ctx, ret, m1, mi->import_name);
-                    goto fail;
-                }
-                if (res_me->local_name == JS_ATOM__star_) {
-                    JSValue val;
-                    JSModuleDef *m2;
-                    /* name space import from */
-                    m2 = res_m->req_module_entries[res_me->u.req_module_idx].module;
-                    val = js_get_module_ns(ctx, m2);
-                    if (JS_IsException(val))
-                        goto fail;
-                    var_ref = js_create_module_var(ctx, TRUE);
-                    if (!var_ref) {
-                        JS_FreeValue(ctx, val);
-                        goto fail;
-                    }
-                    set_value(ctx, &var_ref->value, val);
-                    var_refs[mi->var_idx] = var_ref;
-#ifdef DUMP_MODULE_RESOLVE
-                    printf("namespace from\n");
-#endif
-                } else {
-                    var_ref = res_me->u.local.var_ref;
-                    if (!var_ref) {
-                        p1 = JS_VALUE_GET_OBJ(res_m->func_obj);
-                        var_ref = p1->u.func.var_refs[res_me->u.local.var_idx];
-                    }
-                    var_ref->header.ref_count++;
-                    var_refs[mi->var_idx] = var_ref;
-#ifdef DUMP_MODULE_RESOLVE
-                    printf("local export (var_ref=%p)\n", var_ref);
-#endif
-                }
-            }
-        }
-
-        /* keep the exported variables in the module export entries (they
-           are used when the eval function is deleted and cannot be
-           initialized before in case imports are exported) */
-        for(i = 0; i < m->export_entries_count; i++) {
-            JSExportEntry *me = &m->export_entries[i];
-            if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
-                var_ref = var_refs[me->u.local.var_idx];
-                var_ref->header.ref_count++;
-                me->u.local.var_ref = var_ref;
-            }
-        }
-    }
-
-#ifdef DUMP_MODULE_RESOLVE
-    printf("done instantiate\n");
-#endif
-    return 0;
- fail:
-    return -1;
-}
-
-static JSValue js_dynamic_import(JSContext *ctx, JSValueConst specifier)
-{
-    JSStackFrame *sf;
-    JSFunctionBytecode *b;
-    JSObject *p;
-    JSModuleDef *m;
-    JSAtom basename, filename;
-    JSValue promise, resolving_funcs[2];
-    JSValue specifierString, ret, func_obj, err, ns;
-    
-    promise = JS_NewPromiseCapability(ctx, resolving_funcs);
-    if (JS_IsException(promise))
-        return promise;
-    
-    /* XXX: currently we just use the filename of the englobing
-       function. It does not work for eval(). Need to add a
-       ScriptOrModule info in JSFunctionBytecode */
-    sf = ctx->current_stack_frame;
-    assert(sf != NULL);
-    assert(JS_VALUE_GET_TAG(sf->cur_func) == JS_TAG_OBJECT);
-    p = JS_VALUE_GET_OBJ(sf->cur_func);
-    assert(js_class_has_bytecode(p->class_id));
-    b = p->u.func.function_bytecode;
-    if (!b->has_debug) {
-        JS_ThrowTypeError(ctx, "no function filename for import()");
-        goto exception;
-    }
-    basename = b->debug.filename;
-
-    specifierString = JS_ToString(ctx, specifier);
-    if (JS_IsException(specifierString))
-        goto exception;
-    filename = js_value_to_atom(ctx, specifierString);
-    JS_FreeValue(ctx, specifierString);
-    if (filename == JS_ATOM_NULL)
-        goto exception;
-                     
-    m = js_host_resolve_imported_module(ctx, basename, filename);
-    JS_FreeAtom(ctx, filename);
-    if (!m) {
-        goto exception;
-    }
-    
-    if (js_resolve_module(ctx, m) < 0) {
-        js_free_modules(ctx, JS_FREE_MODULE_NOT_RESOLVED);
-        goto exception;
-    }
-
-    /* Evaluate the module code */
-    func_obj = JS_DupValue(ctx, JS_MKPTR(JS_TAG_MODULE, m));
-    ret = JS_EvalFunction(ctx, func_obj, ctx->global_obj);
-    if (JS_IsException(ret))
-        goto exception;
-    JS_FreeValue(ctx, ret);
-
-    /* return the module namespace */
-    ns = js_get_module_ns(ctx, m);
-    if (JS_IsException(ret))
-        goto exception;
-
-    ret = JS_Call(ctx, resolving_funcs[0], JS_UNDEFINED,
-                   1, (JSValueConst *)&ns);
-    JS_FreeValue(ctx, ret); /* XXX: what to do if exception ? */
-    JS_FreeValue(ctx, ns);
-    JS_FreeValue(ctx, resolving_funcs[0]);
-    JS_FreeValue(ctx, resolving_funcs[1]);
-    return promise;
-
- exception:
-    err = JS_GetException(ctx);
-    ret = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED,
-                   1, (JSValueConst *)&err);
-    JS_FreeValue(ctx, ret); /* XXX: what to do if exception ? */
-    JS_FreeValue(ctx, err);
-    JS_FreeValue(ctx, resolving_funcs[0]);
-    JS_FreeValue(ctx, resolving_funcs[1]);
-    return promise;
-}
-
-/* Run the <eval> function of the module and of all its requested
-   modules. */
-static JSValue js_evaluate_module(JSContext *ctx, JSModuleDef *m)
-{
-    JSModuleDef *m1;
-    int i;
-    JSValue ret_val;
-
-    if (m->eval_mark)
-        return JS_UNDEFINED; /* avoid cycles */
-
-    if (m->evaluated) {
-        /* if the module was already evaluated, rethrow the exception
-           it raised */
-        if (m->eval_has_exception) {
-            return JS_Throw(ctx, JS_DupValue(ctx, m->eval_exception));
-        } else {
-            return JS_UNDEFINED;
-        }
-    }
-
-    m->eval_mark = TRUE;
-
-    for(i = 0; i < m->req_module_entries_count; i++) {
-        JSReqModuleEntry *rme = &m->req_module_entries[i];
-        m1 = rme->module;
-        if (!m1->eval_mark) {
-            ret_val = js_evaluate_module(ctx, m1);
-            if (JS_IsException(ret_val)) {
-                m->eval_mark = FALSE;
-                return ret_val;
-            }
-            JS_FreeValue(ctx, ret_val);
-        }
-    }
-
-    if (m->init_func) {
-        /* C module init */
-        if (m->init_func(ctx, m) < 0)
-            ret_val = JS_EXCEPTION;
-        else
-            ret_val = JS_UNDEFINED;
-    } else {
-        ret_val = JS_CallFree(ctx, m->func_obj, JS_UNDEFINED, 0, NULL);
-        m->func_obj = JS_UNDEFINED;
-    }
-    if (JS_IsException(ret_val)) {
-        /* save the thrown exception value */
-        m->eval_has_exception = TRUE;
-        m->eval_exception = JS_DupValue(ctx, ctx->current_exception);
-    }
-    m->eval_mark = FALSE;
-    m->evaluated = TRUE;
-    return ret_val;
-}
-
-static __exception JSAtom js_parse_from_clause(JSParseState *s)
-{
-    JSAtom module_name;
-    if (!token_is_pseudo_keyword(s, JS_ATOM_from)) {
-        js_parse_error(s, "from clause expected");
-        return JS_ATOM_NULL;
-    }
-    if (next_token(s))
-        return JS_ATOM_NULL;
-    if (s->token.val != TOK_STRING) {
-        js_parse_error(s, "string expected");
-        return JS_ATOM_NULL;
-    }
-    module_name = js_value_to_atom(s->ctx, s->token.u.str.str);
-    if (module_name == JS_ATOM_NULL)
-        return JS_ATOM_NULL;
-    if (next_token(s)) {
-        JS_FreeAtom(s->ctx, module_name);
-        return JS_ATOM_NULL;
-    }
-    return module_name;
-}
-
-static __exception int js_parse_export(JSParseState *s)
-{
-    JSContext *ctx = s->ctx;
-    JSModuleDef *m = s->cur_func->module;
-    JSAtom local_name, export_name;
-    int first_export, idx, i, tok;
-    JSAtom module_name;
-    JSExportEntry *me;
-
-    if (next_token(s))
-        return -1;
-
-    tok = s->token.val;
-    if (tok == TOK_CLASS) {
-        return js_parse_class(s, FALSE, JS_PARSE_EXPORT_NAMED);
-    } else if (tok == TOK_FUNCTION ||
-               (token_is_pseudo_keyword(s, JS_ATOM_async) &&
-                peek_token(s, TRUE) == TOK_FUNCTION)) {
-        return js_parse_function_decl2(s, JS_PARSE_FUNC_STATEMENT,
-                                       JS_FUNC_NORMAL, JS_ATOM_NULL,
-                                       s->token.ptr, s->token.line_num,
-                                       JS_PARSE_EXPORT_NAMED, NULL);
-    }
-
-    if (next_token(s))
-        return -1;
-
-    switch(tok) {
-    case '{':
-        first_export = m->export_entries_count;
-        while (s->token.val != '}') {
-            if (!token_is_ident(s->token.val)) {
-                js_parse_error(s, "identifier expected");
-                return -1;
-            }
-            local_name = JS_DupAtom(ctx, s->token.u.ident.atom);
-            export_name = JS_ATOM_NULL;
-            if (next_token(s))
-                goto fail;
-            if (token_is_pseudo_keyword(s, JS_ATOM_as)) {
-                if (next_token(s))
-                    goto fail;
-                if (!token_is_ident(s->token.val)) {
-                    js_parse_error(s, "identifier expected");
-                    goto fail;
-                }
-                export_name = JS_DupAtom(ctx, s->token.u.ident.atom);
-                if (next_token(s)) {
-                fail:
-                    JS_FreeAtom(ctx, local_name);
-                fail1:
-                    JS_FreeAtom(ctx, export_name);
-                    return -1;
-                }
-            } else {
-                export_name = JS_DupAtom(ctx, local_name);
-            }
-            me = add_export_entry(s, m, local_name, export_name,
-                                  JS_EXPORT_TYPE_LOCAL);
-            JS_FreeAtom(ctx, local_name);
-            JS_FreeAtom(ctx, export_name);
-            if (!me)
-                return -1;
-            if (s->token.val != ',')
-                break;
-            if (next_token(s))
-                return -1;
-        }
-        if (js_parse_expect(s, '}'))
-            return -1;
-        if (token_is_pseudo_keyword(s, JS_ATOM_from)) {
-            module_name = js_parse_from_clause(s);
-            if (module_name == JS_ATOM_NULL)
-                return -1;
-            idx = add_req_module_entry(ctx, m, module_name);
-            JS_FreeAtom(ctx, module_name);
-            if (idx < 0)
-                return -1;
-            for(i = first_export; i < m->export_entries_count; i++) {
-                me = &m->export_entries[i];
-                me->export_type = JS_EXPORT_TYPE_INDIRECT;
-                me->u.req_module_idx = idx;
-            }
-        }
-        break;
-    case '*':
-        if (token_is_pseudo_keyword(s, JS_ATOM_as)) {
-            /* export ns from */
-            if (next_token(s))
-                return -1;
-            if (!token_is_ident(s->token.val)) {
-                js_parse_error(s, "identifier expected");
-                return -1;
-            }
-            export_name = JS_DupAtom(ctx, s->token.u.ident.atom);
-            if (next_token(s))
-                goto fail1;
-            module_name = js_parse_from_clause(s);
-            if (module_name == JS_ATOM_NULL)
-                goto fail1;
-            idx = add_req_module_entry(ctx, m, module_name);
-            JS_FreeAtom(ctx, module_name);
-            if (idx < 0)
-                goto fail1;
-            me = add_export_entry(s, m, JS_ATOM__star_, export_name,
-                                  JS_EXPORT_TYPE_INDIRECT);
-            JS_FreeAtom(ctx, export_name);
-            if (!me)
-                return -1;
-            me->u.req_module_idx = idx;
-        } else {
-            module_name = js_parse_from_clause(s);
-            if (module_name == JS_ATOM_NULL)
-                return -1;
-            idx = add_req_module_entry(ctx, m, module_name);
-            JS_FreeAtom(ctx, module_name);
-            if (idx < 0)
-                return -1;
-            if (add_star_export_entry(ctx, m, idx) < 0)
-                return -1;
-        }
-        break;
-    case TOK_DEFAULT:
-        if (s->token.val == TOK_CLASS) {
-            return js_parse_class(s, FALSE, JS_PARSE_EXPORT_DEFAULT);
-        } else if (s->token.val == TOK_FUNCTION ||
-                   (token_is_pseudo_keyword(s, JS_ATOM_async) &&
-                    peek_token(s, TRUE) == TOK_FUNCTION)) {
-            return js_parse_function_decl2(s, JS_PARSE_FUNC_STATEMENT,
-                                           JS_FUNC_NORMAL, JS_ATOM_NULL,
-                                           s->token.ptr, s->token.line_num,
-                                           JS_PARSE_EXPORT_DEFAULT, NULL);
-        } else {
-            if (js_parse_assign_expr(s, TRUE))
-                return -1;
-        }
-        /* set the name of anonymous functions */
-        set_object_name(s, JS_ATOM_default);
-
-        /* store the value in the _default_ global variable and export
-           it */
-        local_name = JS_ATOM__default_;
-        if (define_var(s, s->cur_func, local_name, TOK_LET) < 0)
-            return -1;
-        emit_op(s, OP_scope_put_var_init);
-        emit_atom(s, local_name);
-        emit_u16(s, 0);
-
-        if (add_export_entry(s, m, local_name, JS_ATOM_default,
-                             JS_EXPORT_TYPE_LOCAL) < 0)
-            return -1;
-        break;
-    case TOK_VAR:
-    case TOK_LET:
-    case TOK_CONST:
-        return js_parse_var(s, TRUE, tok, TRUE);
-    default:
-        return js_parse_error(s, "invalid export syntax");
-    }
-    return js_parse_expect_semi(s);
-}
-
-static int add_closure_var(JSContext *ctx, JSFunctionDef *s,
-                           BOOL is_local, BOOL is_arg,
-                           int var_idx, JSAtom var_name,
-                           BOOL is_const, BOOL is_lexical,
-                           JSVarKindEnum var_kind);
-
-static int add_import(JSParseState *s, JSModuleDef *m,
-                      JSAtom local_name, JSAtom import_name)
-{
-    JSContext *ctx = s->ctx;
-    int i, var_idx;
-    JSImportEntry *mi;
-    BOOL is_local;
-
-    if (local_name == JS_ATOM_arguments || local_name == JS_ATOM_eval)
-        return js_parse_error(s, "invalid import binding");
-
-    if (local_name != JS_ATOM_default) {
-        for (i = 0; i < s->cur_func->closure_var_count; i++) {
-            if (s->cur_func->closure_var[i].var_name == local_name)
-                return js_parse_error(s, "duplicate import binding");
-        }
-    }
-
-    is_local = (import_name == JS_ATOM__star_);
-    var_idx = add_closure_var(ctx, s->cur_func, is_local, FALSE,
-                              m->import_entries_count,
-                              local_name, TRUE, TRUE, FALSE);
-    if (var_idx < 0)
-        return -1;
-    if (js_resize_array(ctx, (void **)&m->import_entries,
-                        sizeof(JSImportEntry),
-                        &m->import_entries_size, &m->import_entries_count,
-                        m->import_entries_count + 1))
-        return -1;
-    mi = &m->import_entries[m->import_entries_count - 1];
-    mi->import_name = JS_DupAtom(ctx, import_name);
-    mi->var_idx = var_idx;
-    return 0;
-}
-
-static __exception int js_parse_import(JSParseState *s)
-{
-    JSContext *ctx = s->ctx;
-    JSModuleDef *m = s->cur_func->module;
-    JSAtom local_name, import_name, module_name;
-    int first_import, i, idx;
-
-    if (next_token(s))
-        return -1;
-
-    first_import = m->import_entries_count;
-    if (s->token.val == TOK_STRING) {
-        module_name = js_value_to_atom(ctx, s->token.u.str.str);
-        if (module_name == JS_ATOM_NULL)
-            return -1;
-        if (next_token(s)) {
-            JS_FreeAtom(ctx, module_name);
-            return -1;
-        }
-    } else {
-        if (s->token.val == TOK_IDENT) {
-            if (s->token.u.ident.is_reserved) {
-                return js_parse_error_reserved_identifier(s);
-            }
-            /* "default" import */
-            local_name = JS_DupAtom(ctx, s->token.u.ident.atom);
-            import_name = JS_ATOM_default;
-            if (next_token(s))
-                goto fail;
-            if (add_import(s, m, local_name, import_name))
-                goto fail;
-            JS_FreeAtom(ctx, local_name);
-
-            if (s->token.val != ',')
-                goto end_import_clause;
-            if (next_token(s))
-                return -1;
-        }
-
-        if (s->token.val == '*') {
-            /* name space import */
-            if (next_token(s))
-                return -1;
-            if (!token_is_pseudo_keyword(s, JS_ATOM_as))
-                return js_parse_error(s, "expecting 'as'");
-            if (next_token(s))
-                return -1;
-            local_name = JS_DupAtom(ctx, s->token.u.ident.atom);
-            import_name = JS_ATOM__star_;
-            if (next_token(s))
-                goto fail;
-            if (add_import(s, m, local_name, import_name))
-                goto fail;
-            JS_FreeAtom(ctx, local_name);
-        } else if (s->token.val == '{') {
-            if (next_token(s))
-                return -1;
-
-            while (s->token.val != '}') {
-                if (!token_is_ident(s->token.val)) {
-                    js_parse_error(s, "identifier expected");
-                    return -1;
-                }
-                import_name = JS_DupAtom(ctx, s->token.u.ident.atom);
-                local_name = JS_ATOM_NULL;
-                if (next_token(s))
-                    goto fail;
-                if (token_is_pseudo_keyword(s, JS_ATOM_as)) {
-                    if (next_token(s))
-                        goto fail;
-                    if (!token_is_ident(s->token.val)) {
-                        js_parse_error(s, "identifier expected");
-                        goto fail;
-                    }
-                    local_name = JS_DupAtom(ctx, s->token.u.ident.atom);
-                    if (next_token(s)) {
-                    fail:
-                        JS_FreeAtom(ctx, local_name);
-                        JS_FreeAtom(ctx, import_name);
-                        return -1;
-                    }
-                } else {
-                    local_name = JS_DupAtom(ctx, import_name);
-                }
-                if (add_import(s, m, local_name, import_name))
-                    goto fail;
-                JS_FreeAtom(ctx, local_name);
-                JS_FreeAtom(ctx, import_name);
-                if (s->token.val != ',')
-                    break;
-                if (next_token(s))
-                    return -1;
-            }
-            if (js_parse_expect(s, '}'))
-                return -1;
-        }
-    end_import_clause:
-        module_name = js_parse_from_clause(s);
-        if (module_name == JS_ATOM_NULL)
-            return -1;
-    }
-    idx = add_req_module_entry(ctx, m, module_name);
-    JS_FreeAtom(ctx, module_name);
-    if (idx < 0)
-        return -1;
-    for(i = first_import; i < m->import_entries_count; i++)
-        m->import_entries[i].req_module_idx = idx;
-
-    return js_parse_expect_semi(s);
-}
-
-static __exception int js_parse_source_element(JSParseState *s)
-{
-    JSFunctionDef *fd = s->cur_func;
-
-    if (s->token.val == TOK_FUNCTION ||
-        (token_is_pseudo_keyword(s, JS_ATOM_async) &&
-         peek_token(s, TRUE) == TOK_FUNCTION)) {
-        if (js_parse_function_decl(s, JS_PARSE_FUNC_STATEMENT,
-                                   JS_FUNC_NORMAL, JS_ATOM_NULL,
-                                   s->token.ptr, s->token.line_num))
-            return -1;
-    } else if (s->token.val == TOK_EXPORT && fd->module) {
-        if (js_parse_export(s))
-            return -1;
-    } else if (s->token.val == TOK_IMPORT && fd->module &&
-               peek_token(s, FALSE) != '(') {
-        /* the peek_token is needed to avoid confusion with ImportCall
-           (dynamic import) */
-        if (js_parse_import(s))
-            return -1;
-    } else {
-        if (js_parse_statement_or_decl(s, DECL_MASK_ALL))
-            return -1;
-    }
-    return 0;
-}
-
-static JSFunctionDef *js_new_function_def(JSContext *ctx,
-                                          JSFunctionDef *parent,
-                                          BOOL is_eval,
-                                          BOOL is_func_expr,
-                                          const char *filename, int line_num)
-{
-    JSFunctionDef *fd;
-
-    fd = js_mallocz(ctx, sizeof(*fd));
-    if (!fd)
-        return NULL;
-
-    fd->ctx = ctx;
-    init_list_head(&fd->child_list);
-
-    /* insert in parent list */
-    fd->parent = parent;
-    fd->parent_cpool_idx = -1;
-    if (parent) {
-        list_add_tail(&fd->link, &parent->child_list);
-        fd->js_mode = parent->js_mode;
-        fd->parent_scope_level = parent->scope_level;
-    }
-
-    fd->is_eval = is_eval;
-    fd->is_func_expr = is_func_expr;
-    js_dbuf_init(ctx, &fd->byte_code);
-    fd->last_opcode_pos = -1;
-    fd->func_name = JS_ATOM_NULL;
-    fd->var_object_idx = -1;
-    fd->arguments_var_idx = -1;
-    fd->func_var_idx = -1;
-    fd->eval_ret_idx = -1;
-    fd->this_var_idx = -1;
-    fd->new_target_var_idx = -1;
-    fd->this_active_func_var_idx = -1;
-    fd->home_object_var_idx = -1;
-
-    /* XXX: should distinguish arg, var and var object and body scopes */
-    fd->scope_level = 0;  /* 0: var/arg scope, 1:body scope */
-    fd->scope_first = -1;
-    fd->scopes = fd->def_scope_array;
-    fd->scope_size = countof(fd->def_scope_array);
-    fd->scope_count = 1;
-    fd->scopes[0].first = -1;
-    fd->scopes[0].parent = -1;
-
-    fd->filename = JS_NewAtom(ctx, filename);
-    fd->line_num = line_num;
-
-    js_dbuf_init(ctx, &fd->pc2line);
-    //fd->pc2line_last_line_num = line_num;
-    //fd->pc2line_last_pc = 0;
-    fd->last_opcode_line_num = line_num;
-
-    return fd;
-}
-
-static void free_bytecode_atoms(JSRuntime *rt,
-                                const uint8_t *bc_buf, int bc_len,
-                                BOOL use_short_opcodes)
-{
-    int pos, len, op;
-    JSAtom atom;
-    const JSOpCode *oi;
-    
-    pos = 0;
-    while (pos < bc_len) {
-        op = bc_buf[pos];
-        if (use_short_opcodes)
-            oi = &short_opcode_info(op);
-        else
-            oi = &opcode_info[op];
-            
-        len = oi->size;
-        switch(oi->fmt) {
-        case OP_FMT_atom:
-        case OP_FMT_atom_u8:
-        case OP_FMT_atom_u16:
-        case OP_FMT_atom_label_u8:
-        case OP_FMT_atom_label_u16:
-            atom = get_u32(bc_buf + pos + 1);
-            JS_FreeAtomRT(rt, atom);
-            break;
-        default:
-            break;
-        }
-        pos += len;
-    }
-}
-
-static void js_free_function_def(JSContext *ctx, JSFunctionDef *fd)
-{
-    int i;
-    struct list_head *el, *el1;
-
-    /* free the child functions */
-    list_for_each_safe(el, el1, &fd->child_list) {
-        JSFunctionDef *fd1;
-        fd1 = list_entry(el, JSFunctionDef, link);
-        js_free_function_def(ctx, fd1);
-    }
-
-    free_bytecode_atoms(ctx->rt, fd->byte_code.buf, fd->byte_code.size,
-                        fd->use_short_opcodes);
-    dbuf_free(&fd->byte_code);
-    js_free(ctx, fd->jump_slots);
-    js_free(ctx, fd->label_slots);
-    js_free(ctx, fd->line_number_slots);
-
-    for(i = 0; i < fd->cpool_count; i++) {
-        JS_FreeValue(ctx, fd->cpool[i]);
-    }
-    js_free(ctx, fd->cpool);
-
-    JS_FreeAtom(ctx, fd->func_name);
-
-    for(i = 0; i < fd->var_count; i++) {
-        JS_FreeAtom(ctx, fd->vars[i].var_name);
-    }
-    js_free(ctx, fd->vars);
-    for(i = 0; i < fd->arg_count; i++) {
-        JS_FreeAtom(ctx, fd->args[i].var_name);
-    }
-    js_free(ctx, fd->args);
-
-    for(i = 0; i < fd->hoisted_def_count; i++) {
-        JS_FreeAtom(ctx, fd->hoisted_def[i].var_name);
-    }
-    js_free(ctx, fd->hoisted_def);
-
-    for(i = 0; i < fd->closure_var_count; i++) {
-        JSClosureVar *cv = &fd->closure_var[i];
-        JS_FreeAtom(ctx, cv->var_name);
-    }
-    js_free(ctx, fd->closure_var);
-
-    if (fd->scopes != fd->def_scope_array)
-        js_free(ctx, fd->scopes);
-
-    JS_FreeAtom(ctx, fd->filename);
-    dbuf_free(&fd->pc2line);
-
-    js_free(ctx, fd->source);
-
-    if (fd->parent) {
-        /* remove in parent list */
-        list_del(&fd->link);
-    }
-    js_free(ctx, fd);
-}
-
-#ifdef DUMP_BYTECODE
-static const char *skip_lines(const char *p, int n) {
-    while (n-- > 0 && *p) {
-        while (*p && *p++ != '\n')
-            continue;
-    }
-    return p;
-}
-
-static void print_lines(const char *source, int line, int line1) {
-    const char *s = source;
-    const char *p = skip_lines(s, line);
-    if (*p) {
-        while (line++ < line1) {
-            p = skip_lines(s = p, 1);
-            printf(";; %.*s", (int)(p - s), s);
-            if (!*p) {
-                if (p[-1] != '\n')
-                    printf("\n");
-                break;
-            }
-        }
-    }
-}
-
-static void dump_byte_code(JSContext *ctx, int pass,
-                           const uint8_t *tab, int len,
-                           const JSVarDef *args, int arg_count,
-                           const JSVarDef *vars, int var_count,
-                           const JSClosureVar *closure_var, int closure_var_count,
-                           const JSValue *cpool, uint32_t cpool_count,
-                           const char *source, int line_num,
-                           const LabelSlot *label_slots, JSFunctionBytecode *b)
-{
-    const JSOpCode *oi;
-    int pos, pos_next, op, size, idx, addr, line, line1, in_source;
-    uint8_t *bits = js_mallocz(ctx, len * sizeof(*bits));
-    BOOL use_short_opcodes = (b != NULL);
-
-    /* scan for jump targets */
-    for (pos = 0; pos < len; pos = pos_next) {
-        op = tab[pos];
-        if (use_short_opcodes)
-            oi = &short_opcode_info(op);
-        else
-            oi = &opcode_info[op];
-        pos_next = pos + oi->size;
-        if (op < OP_COUNT) {
-            switch (oi->fmt) {
-#if SHORT_OPCODES
-            case OP_FMT_label8:
-                pos++;
-                addr = (int8_t)tab[pos];
-                goto has_addr;
-            case OP_FMT_label16:
-                pos++;
-                addr = (int16_t)get_u16(tab + pos);
-                goto has_addr;
-#endif
-            case OP_FMT_atom_label_u8:
-            case OP_FMT_atom_label_u16:
-                pos += 4;
-                /* fall thru */
-            case OP_FMT_label:
-            case OP_FMT_label_u16:
-                pos++;
-                addr = get_u32(tab + pos);
-                goto has_addr;
-            has_addr:
-                if (pass == 1)
-                    addr = label_slots[addr].pos;
-                if (pass == 2)
-                    addr = label_slots[addr].pos2;
-                if (pass == 3)
-                    addr += pos;
-                if (addr >= 0 && addr < len)
-                    bits[addr] |= 1;
-                break;
-            }
-        }
-    }
-    in_source = 0;
-    if (source) {
-        /* Always print first line: needed if single line */
-        print_lines(source, 0, 1);
-        in_source = 1;
-    }
-    line1 = line = 1;
-    pos = 0;
-    while (pos < len) {
-        op = tab[pos];
-        if (source) {
-            if (b) {
-                line1 = find_line_num(ctx, b, pos) - line_num + 1;
-            } else if (op == OP_line_num) {
-                line1 = get_u32(tab + pos + 1) - line_num + 1;
-            }
-            if (line1 > line) {
-                if (!in_source)
-                    printf("\n");
-                in_source = 1;
-                print_lines(source, line, line1);
-                line = line1;
-                //bits[pos] |= 2;
-            }
-        }
-        if (in_source)
-            printf("\n");
-        in_source = 0;
-        if (op >= OP_COUNT) {
-            printf("invalid opcode (0x%02x)\n", op);
-            pos++;
-            continue;
-        }
-        if (use_short_opcodes)
-            oi = &short_opcode_info(op);
-        else
-            oi = &opcode_info[op];
-        size = oi->size;
-        if (pos + size > len) {
-            printf("truncated opcode (0x%02x)\n", op);
-            break;
-        }
-#if defined(DUMP_BYTECODE) && (DUMP_BYTECODE & 16)
-        {
-            int i, x, x0;
-            x = x0 = printf("%5d ", pos);
-            for (i = 0; i < size; i++) {
-                if (i == 6) {
-                    printf("\n%*s", x = x0, "");
-                }
-                x += printf(" %02X", tab[pos + i]);
-            }
-            printf("%*s", x0 + 20 - x, "");
-        }
-#endif
-        if (bits[pos]) {
-            printf("%5d:  ", pos);
-        } else {
-            printf("        ");
-        }
-        printf("%s", oi->name);
-        pos++;
-        switch(oi->fmt) {
-        case OP_FMT_none_int:
-            printf(" %d", op - OP_push_0);
-            break;
-        case OP_FMT_npopx:
-            printf(" %d", op - OP_call0);
-            break;
-        case OP_FMT_u8:
-            printf(" %u", get_u8(tab + pos));
-            break;
-        case OP_FMT_i8:
-            printf(" %d", get_i8(tab + pos));
-            break;
-        case OP_FMT_u16:
-        case OP_FMT_npop:
-            printf(" %u", get_u16(tab + pos));
-            break;
-        case OP_FMT_i16:
-            printf(" %d", get_i16(tab + pos));
-            break;
-        case OP_FMT_i32:
-            printf(" %d", get_i32(tab + pos));
-            break;
-        case OP_FMT_u32:
-            printf(" %u", get_u32(tab + pos));
-            break;
-#if SHORT_OPCODES
-        case OP_FMT_label8:
-            addr = get_i8(tab + pos);
-            goto has_addr1;
-        case OP_FMT_label16:
-            addr = get_i16(tab + pos);
-            goto has_addr1;
-#endif
-        case OP_FMT_label:
-            addr = get_u32(tab + pos);
-            goto has_addr1;
-        has_addr1:
-            if (pass == 1)
-                printf(" %u:%u", addr, label_slots[addr].pos);
-            if (pass == 2)
-                printf(" %u:%u", addr, label_slots[addr].pos2);
-            if (pass == 3)
-                printf(" %u", addr + pos);
-            break;
-        case OP_FMT_label_u16:
-            addr = get_u32(tab + pos);
-            if (pass == 1)
-                printf(" %u:%u", addr, label_slots[addr].pos);
-            if (pass == 2)
-                printf(" %u:%u", addr, label_slots[addr].pos2);
-            if (pass == 3)
-                printf(" %u", addr + pos);
-            printf(",%u", get_u16(tab + pos + 4));
-            break;
-#if SHORT_OPCODES
-        case OP_FMT_const8:
-            idx = get_u8(tab + pos);
-            goto has_pool_idx;
-#endif
-        case OP_FMT_const:
-            idx = get_u32(tab + pos);
-            goto has_pool_idx;
-        has_pool_idx:
-            printf(" %u: ", idx);
-            if (idx < cpool_count) {
-                JS_DumpValue(ctx, cpool[idx]);
-            }
-            break;
-        case OP_FMT_atom:
-            printf(" ");
-            print_atom(ctx, get_u32(tab + pos));
-            break;
-        case OP_FMT_atom_u8:
-            printf(" ");
-            print_atom(ctx, get_u32(tab + pos));
-            printf(",%d", get_u8(tab + pos + 4));
-            break;
-        case OP_FMT_atom_u16:
-            printf(" ");
-            print_atom(ctx, get_u32(tab + pos));
-            printf(",%d", get_u16(tab + pos + 4));
-            break;
-        case OP_FMT_atom_label_u8:
-        case OP_FMT_atom_label_u16:
-            printf(" ");
-            print_atom(ctx, get_u32(tab + pos));
-            addr = get_u32(tab + pos + 4);
-            if (pass == 1)
-                printf(",%u:%u", addr, label_slots[addr].pos);
-            if (pass == 2)
-                printf(",%u:%u", addr, label_slots[addr].pos2);
-            if (pass == 3)
-                printf(",%u", addr + pos + 4);
-            if (oi->fmt == OP_FMT_atom_label_u8)
-                printf(",%u", get_u8(tab + pos + 8));
-            else
-                printf(",%u", get_u16(tab + pos + 8));
-            break;
-        case OP_FMT_none_loc:
-            idx = (op - OP_get_loc0) % 4;
-            goto has_loc;
-        case OP_FMT_loc8:
-            idx = get_u8(tab + pos);
-            goto has_loc;
-        case OP_FMT_loc:
-            idx = get_u16(tab + pos);
-        has_loc:
-            printf(" %d: ", idx);
-            if (idx < var_count) {
-                print_atom(ctx, vars[idx].var_name);
-            }
-            break;
-        case OP_FMT_none_arg:
-            idx = (op - OP_get_arg0) % 4;
-            goto has_arg;
-        case OP_FMT_arg:
-            idx = get_u16(tab + pos);
-        has_arg:
-            printf(" %d: ", idx);
-            if (idx < arg_count) {
-                print_atom(ctx, args[idx].var_name);
-            }
-            break;
-        case OP_FMT_none_var_ref:
-            idx = (op - OP_get_var_ref0) % 4;
-            goto has_var_ref;
-        case OP_FMT_var_ref:
-            idx = get_u16(tab + pos);
-        has_var_ref:
-            printf(" %d: ", idx);
-            if (idx < closure_var_count) {
-                print_atom(ctx, closure_var[idx].var_name);
-            }
-            break;
-        default:
-            break;
-        }
-        printf("\n");
-        pos += oi->size - 1;
-    }
-    if (source) {
-        if (!in_source)
-            printf("\n");
-        print_lines(source, line, INT32_MAX);
-    }
-    js_free(ctx, bits);
-}
-
-static __attribute__((unused)) void dump_pc2line(JSContext *ctx, const uint8_t *buf, int len,
-                                                 int line_num)
-{
-    const uint8_t *p_end, *p_next, *p;
-    int pc, v;
-    unsigned int op;
-
-    if (len <= 0)
-        return;
-
-    printf("%5s %5s\n", "PC", "LINE");
-
-    p = buf;
-    p_end = buf + len;
-    pc = 0;
-    while (p < p_end) {
-        op = *p++;
-        if (op == 0) {
-            v = unicode_from_utf8(p, p_end - p, &p_next);
-            if (v < 0)
-                goto fail;
-            pc += v;
-            p = p_next;
-            v = unicode_from_utf8(p, p_end - p, &p_next);
-            if (v < 0) {
-            fail:
-                printf("invalid pc2line encode pos=%d\n", (int)(p - buf));
-                return;
-            }
-            if (!(v & 1)) {
-                v = v >> 1;
-            } else {
-                v = -(v >> 1) - 1;
-            }
-            line_num += v;
-            p = p_next;
-        } else {
-            op -= PC2LINE_OP_FIRST;
-            pc += (op / PC2LINE_RANGE);
-            line_num += (op % PC2LINE_RANGE) + PC2LINE_BASE;
-        }
-        printf("%5d %5d\n", pc, line_num);
-    }
-}
-
-static __attribute__((unused)) void js_dump_function_bytecode(JSContext *ctx, JSFunctionBytecode *b)
-{
-    int i;
-    char atom_buf[ATOM_GET_STR_BUF_SIZE];
-    const char *str;
-
-    if (b->has_debug && b->debug.filename != JS_ATOM_NULL) {
-        str = JS_AtomGetStr(ctx, atom_buf, sizeof(atom_buf), b->debug.filename);
-        printf("%s:%d: ", str, b->debug.line_num);
-    }
-
-    str = JS_AtomGetStr(ctx, atom_buf, sizeof(atom_buf), b->func_name);
-    printf("function: %s%s\n", &"*"[b->func_kind != JS_FUNC_GENERATOR], str);
-    if (b->js_mode) {
-        printf("  mode:");
-        if (b->js_mode & JS_MODE_STRICT)
-            printf(" strict");
-#ifdef CONFIG_BIGNUM
-        if (b->js_mode & JS_MODE_MATH)
-            printf(" math");
-#endif
-        printf("\n");
-    }
-    if (b->arg_count && b->vardefs) {
-        printf("  args:");
-        for(i = 0; i < b->arg_count; i++) {
-            printf(" %s", JS_AtomGetStr(ctx, atom_buf, sizeof(atom_buf),
-                                        b->vardefs[i].var_name));
-        }
-        printf("\n");
-    }
-    if (b->var_count && b->vardefs) {
-        printf("  locals:\n");
-        for(i = 0; i < b->var_count; i++) {
-            JSVarDef *vd = &b->vardefs[b->arg_count + i];
-            printf("%5d: %s %s", i,
-                   vd->var_kind == JS_VAR_CATCH ? "catch" :
-                   vd->is_function ? "function" :
-                   vd->is_const ? "const" :
-                   vd->is_lexical ? "let" : "var",
-                   JS_AtomGetStr(ctx, atom_buf, sizeof(atom_buf), vd->var_name));
-            if (vd->scope_level)
-                printf(" [level:%d next:%d]", vd->scope_level, vd->scope_next);
-            printf("\n");
-        }
-    }
-    if (b->closure_var_count) {
-        printf("  closure vars:\n");
-        for(i = 0; i < b->closure_var_count; i++) {
-            JSClosureVar *cv = &b->closure_var[i];
-            printf("%5d: %s %s:%s%d %s\n", i,
-                   JS_AtomGetStr(ctx, atom_buf, sizeof(atom_buf), cv->var_name),
-                   cv->is_local ? "local" : "parent",
-                   cv->is_arg ? "arg" : "loc", cv->var_idx,
-                   cv->is_const ? "const" :
-                   cv->is_lexical ? "let" : "var");
-        }
-    }
-    printf("  stack_size: %d\n", b->stack_size);
-    printf("  opcodes:\n");
-    dump_byte_code(ctx, 3, b->byte_code_buf, b->byte_code_len,
-                   b->vardefs, b->arg_count,
-                   b->vardefs ? b->vardefs + b->arg_count : NULL, b->var_count,
-                   b->closure_var, b->closure_var_count,
-                   b->cpool, b->cpool_count,
-                   b->has_debug ? b->debug.source : NULL,
-                   b->has_debug ? b->debug.line_num : -1, NULL, b);
-#if defined(DUMP_BYTECODE) && (DUMP_BYTECODE & 32)
-    if (b->has_debug)
-        dump_pc2line(ctx, b->debug.pc2line_buf, b->debug.pc2line_len, b->debug.line_num);
-#endif
-    printf("\n");
-}
-#endif
-
-static int add_closure_var(JSContext *ctx, JSFunctionDef *s,
-                           BOOL is_local, BOOL is_arg,
-                           int var_idx, JSAtom var_name,
-                           BOOL is_const, BOOL is_lexical,
-                           JSVarKindEnum var_kind)
-{
-    JSClosureVar *cv;
-
-    /* the closure variable indexes are currently stored on 16 bits */
-    if (s->closure_var_count >= JS_MAX_LOCAL_VARS) {
-        JS_ThrowInternalError(ctx, "too many closure variables");
-        return -1;
-    }
-
-    if (s->closure_var_count >= s->closure_var_size) {
-        JSClosureVar *new_tab;
-        int new_size;
-        size_t slack;
-        new_size = max_int(s->closure_var_count + 1,
-                           s->closure_var_size * 3 / 2);
-        new_tab = js_realloc2(ctx, s->closure_var,
-                              new_size * sizeof(JSClosureVar), &slack);
-        if (!new_tab)
-            return -1;
-        new_size += slack / sizeof(*new_tab);
-        s->closure_var = new_tab;
-        s->closure_var_size = new_size;
-    }
-    cv = &s->closure_var[s->closure_var_count++];
-    cv->is_local = is_local;
-    cv->is_arg = is_arg;
-    cv->is_const = is_const;
-    cv->is_lexical = is_lexical;
-    cv->var_kind = var_kind;
-    cv->var_idx = var_idx;
-    cv->var_name = JS_DupAtom(ctx, var_name);
-    return s->closure_var_count - 1;
-}
-
-static int find_closure_var(JSContext *ctx, JSFunctionDef *s,
-                            JSAtom var_name)
-{
-    int i;
-    for(i = 0; i < s->closure_var_count; i++) {
-        JSClosureVar *cv = &s->closure_var[i];
-        if (cv->var_name == var_name)
-            return i;
-    }
-    return -1;
-}
-
-/* 'fd' must be a parent of 's'. Create in 's' a closure referencing a
-   local variable (is_local = TRUE) or a closure (is_local = FALSE) in
-   'fd' */
-static int get_closure_var2(JSContext *ctx, JSFunctionDef *s,
-                            JSFunctionDef *fd, BOOL is_local,
-                            BOOL is_arg, int var_idx, JSAtom var_name,
-                            BOOL is_const, BOOL is_lexical,
-                            JSVarKindEnum var_kind)
-{
-    int i;
-
-    if (fd != s->parent) {
-        var_idx = get_closure_var2(ctx, s->parent, fd, is_local,
-                                   is_arg, var_idx, var_name,
-                                   is_const, is_lexical, var_kind);
-        if (var_idx < 0)
-            return -1;
-        is_local = FALSE;
-    }
-    for(i = 0; i < s->closure_var_count; i++) {
-        JSClosureVar *cv = &s->closure_var[i];
-        if (cv->var_idx == var_idx && cv->is_arg == is_arg &&
-            cv->is_local == is_local)
-            return i;
-    }
-    return add_closure_var(ctx, s, is_local, is_arg, var_idx, var_name,
-                           is_const, is_lexical, var_kind);
-}
-
-static int get_closure_var(JSContext *ctx, JSFunctionDef *s,
-                           JSFunctionDef *fd, BOOL is_arg,
-                           int var_idx, JSAtom var_name,
-                           BOOL is_const, BOOL is_lexical,
-                           JSVarKindEnum var_kind)
-{
-    return get_closure_var2(ctx, s, fd, TRUE, is_arg,
-                            var_idx, var_name, is_const, is_lexical,
-                            var_kind);
-}
-
-static int get_with_scope_opcode(int op)
-{
-    if (op == OP_scope_get_var_undef)
-        return OP_with_get_var;
-    else
-        return OP_with_get_var + (op - OP_scope_get_var);
-}
-
-static BOOL can_opt_put_ref_value(const uint8_t *bc_buf, int pos)
-{
-    int opcode = bc_buf[pos];
-    return (bc_buf[pos + 1] == OP_put_ref_value &&
-            (opcode == OP_insert3 ||
-             opcode == OP_perm4 ||
-             //opcode == OP_nop ||
-             opcode == OP_rot3l));
-}
-
-static BOOL can_opt_put_global_ref_value(const uint8_t *bc_buf, int pos)
-{
-    int opcode = bc_buf[pos];
-    return (bc_buf[pos + 1] == OP_put_ref_value &&
-            (opcode == OP_insert3 ||
-             opcode == OP_perm4 ||
-             //opcode == OP_nop ||
-             opcode == OP_rot3l));
-}
-
-static int optimize_scope_make_ref(JSContext *ctx, JSFunctionDef *s,
-                                   DynBuf *bc, uint8_t *bc_buf,
-                                   LabelSlot *ls, int pos_next,
-                                   int get_op, int var_idx)
-{
-    int label_pos, end_pos, pos;
-
-    /* XXX: should optimize `loc(a) += expr` as `expr add_loc(a)`
-       but only if expr does not modify `a`.
-       should scan the code between pos_next and label_pos
-       for operations that can potentially change `a`:
-       OP_scope_make_ref(a), function calls, jumps and gosub.
-     */
-    /* replace the reference get/put with normal variable
-       accesses */
-    if (bc_buf[pos_next] == OP_get_ref_value) {
-        dbuf_putc(bc, get_op);
-        dbuf_put_u16(bc, var_idx);
-        pos_next++;
-    }
-    /* remove the OP_label to make room for replacement */
-    /* label should have a refcount of 0 anyway */
-    /* XXX: should avoid this patch by inserting nops in phase 1 */
-    label_pos = ls->pos;
-    pos = label_pos - 5;
-    assert(bc_buf[pos] == OP_label);
-    /* label points to an instruction pair:
-       - insert3 / put_ref_value
-       - perm4 / put_ref_value
-       - rot3l / put_ref_value
-       - nop / put_ref_value
-     */
-    end_pos = label_pos + 2;
-    if (bc_buf[label_pos] == OP_insert3)
-        bc_buf[pos++] = OP_dup;
-    bc_buf[pos] = get_op + 1;
-    put_u16(bc_buf + pos + 1, var_idx);
-    pos += 3;
-    /* pad with OP_nop */
-    while (pos < end_pos)
-        bc_buf[pos++] = OP_nop;
-    return pos_next;
-}
-
-static int optimize_scope_make_global_ref(JSContext *ctx, JSFunctionDef *s,
-                                          DynBuf *bc, uint8_t *bc_buf,
-                                          LabelSlot *ls, int pos_next,
-                                          JSAtom var_name)
-{
-    int label_pos, end_pos, pos, op;
-    BOOL is_strict;
-    is_strict = ((s->js_mode & JS_MODE_STRICT) != 0);
-
-    /* replace the reference get/put with normal variable
-       accesses */
-    if (is_strict) {
-        /* need to check if the variable exists before evaluating the right
-           expression */
-        /* XXX: need an extra OP_true if destructuring an array */
-        dbuf_putc(bc, OP_check_var);
-        dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-    } else {
-        /* XXX: need 2 extra OP_true if destructuring an array */
-    }
-    if (bc_buf[pos_next] == OP_get_ref_value) {
-        dbuf_putc(bc, OP_get_var);
-        dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-        pos_next++;
-    }
-    /* remove the OP_label to make room for replacement */
-    /* label should have a refcount of 0 anyway */
-    /* XXX: should have emitted several OP_nop to avoid this kludge */
-    label_pos = ls->pos;
-    pos = label_pos - 5;
-    assert(bc_buf[pos] == OP_label);
-    end_pos = label_pos + 2;
-    op = bc_buf[label_pos];
-    if (is_strict) {
-        switch(op) {
-        case OP_insert3:
-            op = OP_insert2;
-            break;
-        case OP_perm4:
-            op = OP_perm3;
-            break;
-        case OP_rot3l:
-            op = OP_swap;
-            break;
-        default:
-            abort();
-        }
-        bc_buf[pos++] = op;
-    } else {
-        if (op == OP_insert3)
-            bc_buf[pos++] = OP_dup;
-    }
-    if (is_strict) {
-        bc_buf[pos] = OP_put_var_strict;
-        /* XXX: need 1 extra OP_drop if destructuring an array */
-    } else {
-        bc_buf[pos] = OP_put_var;
-        /* XXX: need 2 extra OP_drop if destructuring an array */
-    }
-    put_u32(bc_buf + pos + 1, JS_DupAtom(ctx, var_name));
-    pos += 5;
-    /* pad with OP_nop */
-    while (pos < end_pos)
-        bc_buf[pos++] = OP_nop;
-    return pos_next;
-}
-
-static int add_var_this(JSContext *ctx, JSFunctionDef *fd)
-{
-    int idx;
-    idx = add_var(ctx, fd, JS_ATOM_this);
-    if (idx >= 0 && fd->is_derived_class_constructor) {
-        JSVarDef *vd = &fd->vars[idx];
-        /* XXX: should have is_this flag or var type */
-        vd->is_lexical = 1; /* used to trigger 'uninitialized' checks
-                               in a derived class constructor */
-    }
-    return idx;
-}
-
-static int resolve_pseudo_var(JSContext *ctx, JSFunctionDef *s,
-                               JSAtom var_name)
-{
-    int var_idx;
-
-    if (!s->has_this_binding)
-        return -1;
-    switch(var_name) {
-    case JS_ATOM_home_object:
-        /* 'home_object' pseudo variable */
-        var_idx = s->home_object_var_idx = add_var(ctx, s, var_name);
-        break;
-    case JS_ATOM_this_active_func:
-        /* 'this.active_func' pseudo variable */
-        var_idx = s->this_active_func_var_idx = add_var(ctx, s, var_name);
-        break;
-    case JS_ATOM_new_target:
-        /* 'new.target' pseudo variable */
-        var_idx = s->new_target_var_idx = add_var(ctx, s, var_name);
-        break;
-    case JS_ATOM_this:
-        /* 'this' pseudo variable */
-        var_idx = s->this_var_idx = add_var_this(ctx, s);
-        break;
-    default:
-        var_idx = -1;
-        break;
-    }
-    return var_idx;
-}
-
-/* return the position of the next opcode */
-static int resolve_scope_var(JSContext *ctx, JSFunctionDef *s,
-                             JSAtom var_name, int scope_level, int op,
-                             DynBuf *bc, uint8_t *bc_buf,
-                             LabelSlot *ls, int pos_next, int arg_valid)
-{
-    int idx, var_idx, is_put;
-    int label_done;
-    BOOL is_func_var = FALSE;
-    JSFunctionDef *fd;
-    JSVarDef *vd;
-    BOOL is_pseudo_var;
-
-    label_done = -1;
-
-    /* XXX: could be simpler to use a specific function to
-       resolve the pseudo variables */
-    is_pseudo_var = (var_name == JS_ATOM_home_object ||
-                     var_name == JS_ATOM_this_active_func ||
-                     var_name == JS_ATOM_new_target ||
-                     var_name == JS_ATOM_this);
-
-    /* resolve local scoped variables */
-    var_idx = -1;
-    for (idx = s->scopes[scope_level].first; idx >= 0;) {
-        vd = &s->vars[idx];
-        if (vd->var_name == var_name) {
-            if (op == OP_scope_put_var || op == OP_scope_make_ref) {
-                if (vd->is_const) {
-                    dbuf_putc(bc, OP_throw_var);
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                    dbuf_putc(bc, JS_THROW_VAR_RO);
-                    goto done;
-                }
-                is_func_var = vd->is_func_var;
-            }
-            var_idx = idx;
-            break;
-        } else
-        if (vd->var_name == JS_ATOM__with_ && !is_pseudo_var) {
-            dbuf_putc(bc, OP_get_loc);
-            dbuf_put_u16(bc, idx);
-            dbuf_putc(bc, get_with_scope_opcode(op));
-            dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-            label_done = new_label_fd(s, label_done);
-            dbuf_put_u32(bc, label_done);
-            dbuf_putc(bc, 1);
-            update_label(s, label_done, 1);
-            s->jump_size++;
-        }
-        idx = vd->scope_next;
-    }
-    if (var_idx < 0) {
-        /* XXX: scoping issues:
-           should not resolve vars from the function body during argument parse,
-           `arguments` and function-name should not be hidden by later vars.
-         */
-        var_idx = find_var(ctx, s, var_name);
-        if (var_idx >= 0) {
-            if (scope_level == 0
-            &&  (var_idx & ARGUMENT_VAR_OFFSET)
-            &&  (var_idx - ARGUMENT_VAR_OFFSET) >= arg_valid) {
-                /* referring to an uninitialized argument */
-                dbuf_putc(bc, OP_throw_var);
-                dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                dbuf_putc(bc, JS_THROW_VAR_UNINITIALIZED);
-            }
-            if (!(var_idx & ARGUMENT_VAR_OFFSET))
-                is_func_var = s->vars[var_idx].is_func_var;
-        }
-
-        if (var_idx < 0 && is_pseudo_var)
-            var_idx = resolve_pseudo_var(ctx, s, var_name);
-
-        if (var_idx < 0 && var_name == JS_ATOM_arguments &&
-            s->has_arguments_binding) {
-            /* 'arguments' pseudo variable */
-            var_idx = add_arguments_var(ctx, s, var_name);
-        }
-        if (var_idx < 0 && s->is_func_expr && var_name == s->func_name) {
-            /* add a new variable with the function name */
-            var_idx = add_func_var(ctx, s, var_name);
-            is_func_var = TRUE;
-        }
-    }
-    if (var_idx >= 0) {
-        /* OP_scope_put_var_init is only used to initialize a
-           lexical variable, so it is never used in a with or var object. It
-           can be used with a closure (module global variable case). */
-        switch (op) {
-        case OP_scope_make_ref:
-            if (is_func_var) {
-                /* Create a dummy object reference for the func_var */
-                dbuf_putc(bc, OP_object);
-                dbuf_putc(bc, OP_get_loc);
-                dbuf_put_u16(bc, var_idx);
-                dbuf_putc(bc, OP_define_field);
-                dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                dbuf_putc(bc, OP_push_atom_value);
-                dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-            } else
-            if (label_done == -1 && can_opt_put_ref_value(bc_buf, ls->pos)) {
-                int get_op;
-                if (var_idx & ARGUMENT_VAR_OFFSET) {
-                    get_op = OP_get_arg;
-                    var_idx -= ARGUMENT_VAR_OFFSET;
-                } else {
-                    if (s->vars[var_idx].is_lexical)
-                        get_op = OP_get_loc_check;
-                    else
-                        get_op = OP_get_loc;
-                }
-                pos_next = optimize_scope_make_ref(ctx, s, bc, bc_buf, ls,
-                                                   pos_next, get_op, var_idx);
-            } else {
-                /* Create a dummy object with a named slot that is
-                   a reference to the local variable */
-                if (var_idx & ARGUMENT_VAR_OFFSET) {
-                    dbuf_putc(bc, OP_make_arg_ref);
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                    dbuf_put_u16(bc, var_idx - ARGUMENT_VAR_OFFSET);
-                } else {
-                    dbuf_putc(bc, OP_make_loc_ref);
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                    dbuf_put_u16(bc, var_idx);
-                }
-            }
-            break;
-        case OP_scope_get_ref:
-            dbuf_putc(bc, OP_undefined);
-            /* fall thru */
-        case OP_scope_get_var_undef:
-        case OP_scope_get_var:
-        case OP_scope_put_var:
-        case OP_scope_put_var_init:
-            is_put = (op == OP_scope_put_var || op == OP_scope_put_var_init);
-            if (var_idx & ARGUMENT_VAR_OFFSET) {
-                dbuf_putc(bc, OP_get_arg + is_put);
-                dbuf_put_u16(bc, var_idx - ARGUMENT_VAR_OFFSET);
-                /* XXX: should test if argument reference needs TDZ check */
-            } else {
-                if (is_put) {
-                    if (s->vars[var_idx].is_lexical) {
-                        if (op == OP_scope_put_var_init) {
-                            /* 'this' can only be initialized once */
-                            if (var_name == JS_ATOM_this)
-                                dbuf_putc(bc, OP_put_loc_check_init);
-                            else
-                                dbuf_putc(bc, OP_put_loc);
-                        } else {
-                            dbuf_putc(bc, OP_put_loc_check);
-                        }
-                    } else {
-                        dbuf_putc(bc, OP_put_loc);
-                    }
-                } else {
-                    if (s->vars[var_idx].is_lexical) {
-                        dbuf_putc(bc, OP_get_loc_check);
-                    } else {
-                        dbuf_putc(bc, OP_get_loc);
-                    }
-                }
-                dbuf_put_u16(bc, var_idx);
-            }
-            break;
-        case OP_scope_delete_var:
-            dbuf_putc(bc, OP_push_false);
-            break;
-        }
-        goto done;
-    }
-    /* check eval object */
-    if (s->var_object_idx >= 0 && !is_pseudo_var) {
-        dbuf_putc(bc, OP_get_loc);
-        dbuf_put_u16(bc, s->var_object_idx);
-        dbuf_putc(bc, get_with_scope_opcode(op));
-        dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-        label_done = new_label_fd(s, label_done);
-        dbuf_put_u32(bc, label_done);
-        dbuf_putc(bc, 0);
-        update_label(s, label_done, 1);
-        s->jump_size++;
-    }
-    /* check parent scopes */
-    for (fd = s; fd->parent;) {
-        scope_level = fd->parent_scope_level;
-        fd = fd->parent;
-        if (scope_level == 0) {
-            /* function is defined as part of the argument parsing: hide vars
-               from the function body.
-               XXX: variables created from argument destructuring might need
-               to be visible, should refine this method.
-             */
-            var_idx = find_arg(ctx, fd, var_name);
-            goto check_idx;
-        }
-        for (idx = fd->scopes[scope_level].first; idx >= 0;) {
-            vd = &fd->vars[idx];
-            if (vd->var_name == var_name) {
-                if (op == OP_scope_put_var || op == OP_scope_make_ref) {
-                    if (vd->is_const) {
-                        dbuf_putc(bc, OP_throw_var);
-                        dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                        dbuf_putc(bc, JS_THROW_VAR_RO);
-                        goto done;
-                    }
-                    is_func_var = vd->is_func_var;
-                }
-                var_idx = idx;
-                break;
-            } else if (vd->var_name == JS_ATOM__with_ && !is_pseudo_var) {
-                vd->is_captured = 1;
-                idx = get_closure_var(ctx, s, fd, FALSE, idx, vd->var_name, FALSE, FALSE, JS_VAR_NORMAL);
-                if (idx >= 0) {
-                    dbuf_putc(bc, OP_get_var_ref);
-                    dbuf_put_u16(bc, idx);
-                    dbuf_putc(bc, get_with_scope_opcode(op));
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                    label_done = new_label_fd(s, label_done);
-                    dbuf_put_u32(bc, label_done);
-                    dbuf_putc(bc, 1);
-                    update_label(s, label_done, 1);
-                    s->jump_size++;
-                }
-            }
-            idx = vd->scope_next;
-        }
-        if (var_idx >= 0)
-            break;
-
-        var_idx = find_var(ctx, fd, var_name);
-    check_idx:
-        if (var_idx >= 0) {
-            if (!(var_idx & ARGUMENT_VAR_OFFSET))
-                is_func_var = fd->vars[var_idx].is_func_var;
-            break;
-        }
-        if (is_pseudo_var) {
-            var_idx = resolve_pseudo_var(ctx, fd, var_name);
-            if (var_idx >= 0)
-                break;
-        }
-        if (var_name == JS_ATOM_arguments && fd->has_arguments_binding) {
-            var_idx = add_arguments_var(ctx, fd, var_name);
-            break;
-        }
-        if (fd->is_func_expr && fd->func_name == var_name) {
-            /* add a new variable with the function name */
-            var_idx = add_func_var(ctx, fd, var_name);
-            is_func_var = TRUE;
-            break;
-        }
-
-        /* check eval object */
-        if (fd->var_object_idx >= 0 && !is_pseudo_var) {
-            fd->vars[fd->var_object_idx].is_captured = 1;
-            idx = get_closure_var(ctx, s, fd, FALSE,
-                                  fd->var_object_idx, JS_ATOM__var_,
-                                  FALSE, FALSE, JS_VAR_NORMAL);
-            dbuf_putc(bc, OP_get_var_ref);
-            dbuf_put_u16(bc, idx);
-            dbuf_putc(bc, get_with_scope_opcode(op));
-            dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-            label_done = new_label_fd(s, label_done);
-            dbuf_put_u32(bc, label_done);
-            dbuf_putc(bc, 0);
-            update_label(s, label_done, 1);
-            s->jump_size++;
-        }
-
-        if (fd->is_eval)
-            break; /* it it necessarily the top level function */
-    }
-
-    /* check direct eval scope (in the closure of the eval function
-       which is necessarily at the top level) */
-    if (!fd)
-        fd = s;
-    if (var_idx < 0 && fd->is_eval) {
-        int idx1;
-        for (idx1 = 0; idx1 < fd->closure_var_count; idx1++) {
-            JSClosureVar *cv = &fd->closure_var[idx1];
-            if (var_name == cv->var_name) {
-                if (fd != s) {
-                    idx = get_closure_var2(ctx, s, fd,
-                                           FALSE,
-                                           cv->is_arg, idx1,
-                                           cv->var_name, cv->is_const,
-                                           cv->is_lexical, cv->var_kind);
-                } else {
-                    idx = idx1;
-                }
-                goto has_idx;
-            } else if ((cv->var_name == JS_ATOM__var_ ||
-                        cv->var_name == JS_ATOM__with_) && !is_pseudo_var) {
-                int is_with = (cv->var_name == JS_ATOM__with_);
-                if (fd != s) {
-                    idx = get_closure_var2(ctx, s, fd,
-                                           FALSE,
-                                           cv->is_arg, idx1,
-                                           cv->var_name, FALSE, FALSE,
-                                           JS_VAR_NORMAL);
-                } else {
-                    idx = idx1;
-                }
-                dbuf_putc(bc, OP_get_var_ref);
-                dbuf_put_u16(bc, idx);
-                dbuf_putc(bc, get_with_scope_opcode(op));
-                dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                label_done = new_label_fd(s, label_done);
-                dbuf_put_u32(bc, label_done);
-                dbuf_putc(bc, is_with);
-                update_label(s, label_done, 1);
-                s->jump_size++;
-            }
-        }
-    }
-
-    if (var_idx >= 0) {
-        /* find the corresponding closure variable */
-        if (var_idx & ARGUMENT_VAR_OFFSET) {
-            fd->args[var_idx - ARGUMENT_VAR_OFFSET].is_captured = 1;
-            idx = get_closure_var(ctx, s, fd,
-                                  TRUE, var_idx - ARGUMENT_VAR_OFFSET,
-                                  var_name, FALSE, FALSE, JS_VAR_NORMAL);
-        } else {
-            fd->vars[var_idx].is_captured = 1;
-            idx = get_closure_var(ctx, s, fd,
-                                  FALSE, var_idx,
-                                  var_name,
-                                  fd->vars[var_idx].is_const,
-                                  fd->vars[var_idx].is_lexical,
-                                  fd->vars[var_idx].var_kind);
-        }
-        if (idx >= 0) {
-        has_idx:
-            if ((op == OP_scope_put_var || op == OP_scope_make_ref) &&
-                s->closure_var[idx].is_const) {
-                dbuf_putc(bc, OP_throw_var);
-                dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                dbuf_putc(bc, JS_THROW_VAR_RO);
-                goto done;
-            }
-            switch (op) {
-            case OP_scope_make_ref:
-                if (is_func_var) {
-                    /* Create a dummy object reference for the func_var */
-                    dbuf_putc(bc, OP_object);
-                    dbuf_putc(bc, OP_get_var_ref);
-                    dbuf_put_u16(bc, idx);
-                    dbuf_putc(bc, OP_define_field);
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                    dbuf_putc(bc, OP_push_atom_value);
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                } else
-                if (label_done == -1 &&
-                    can_opt_put_ref_value(bc_buf, ls->pos)) {
-                    int get_op;
-                    if (s->closure_var[idx].is_lexical)
-                        get_op = OP_get_var_ref_check;
-                    else
-                        get_op = OP_get_var_ref;
-                    pos_next = optimize_scope_make_ref(ctx, s, bc, bc_buf, ls,
-                                                       pos_next,
-                                                       get_op, idx);
-                } else {
-                    /* Create a dummy object with a named slot that is
-                       a reference to the closure variable */
-                    dbuf_putc(bc, OP_make_var_ref_ref);
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-                    dbuf_put_u16(bc, idx);
-                }
-                break;
-            case OP_scope_get_ref:
-                /* XXX: should create a dummy object with a named slot that is
-                   a reference to the closure variable */
-                dbuf_putc(bc, OP_undefined);
-                /* fall thru */
-            case OP_scope_get_var_undef:
-            case OP_scope_get_var:
-            case OP_scope_put_var:
-            case OP_scope_put_var_init:
-                is_put = (op == OP_scope_put_var ||
-                          op == OP_scope_put_var_init);
-                if (is_put) {
-                    if (s->closure_var[idx].is_lexical) {
-                        if (op == OP_scope_put_var_init) {
-                            /* 'this' can only be initialized once */
-                            if (var_name == JS_ATOM_this)
-                                dbuf_putc(bc, OP_put_var_ref_check_init);
-                            else
-                                dbuf_putc(bc, OP_put_var_ref);
-                        } else {
-                            dbuf_putc(bc, OP_put_var_ref_check);
-                        }
-                    } else {
-                        dbuf_putc(bc, OP_put_var_ref);
-                    }
-                } else {
-                    if (s->closure_var[idx].is_lexical) {
-                        dbuf_putc(bc, OP_get_var_ref_check);
-                    } else {
-                        dbuf_putc(bc, OP_get_var_ref);
-                    }
-                }
-                dbuf_put_u16(bc, idx);
-                break;
-            case OP_scope_delete_var:
-                dbuf_putc(bc, OP_push_false);
-                break;
-            }
-            goto done;
-        }
-    }
-
-    /* global variable access */
-
-    switch (op) {
-    case OP_scope_make_ref:
-        if (label_done == -1 && can_opt_put_global_ref_value(bc_buf, ls->pos)) {
-            pos_next = optimize_scope_make_global_ref(ctx, s, bc, bc_buf, ls,
-                                                      pos_next, var_name);
-        } else {
-            dbuf_putc(bc, OP_make_var_ref);
-            dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-        }
-        break;
-    case OP_scope_get_ref:
-        /* XXX: should create a dummy object with a named slot that is
-           a reference to the global variable */
-        dbuf_putc(bc, OP_undefined);
-        dbuf_putc(bc, OP_get_var);
-        dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-        break;
-    case OP_scope_get_var_undef:
-    case OP_scope_get_var:
-    case OP_scope_put_var:
-        dbuf_putc(bc, OP_get_var_undef + (op - OP_scope_get_var_undef));
-        dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-        break;
-    case OP_scope_put_var_init:
-        dbuf_putc(bc, OP_put_var_init);
-        dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-        break;
-    case OP_scope_delete_var:
-        dbuf_putc(bc, OP_delete_var);
-        dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-        break;
-    }
-done:
-    if (label_done >= 0) {
-        dbuf_putc(bc, OP_label);
-        dbuf_put_u32(bc, label_done);
-        s->label_slots[label_done].pos2 = bc->size;
-    }
-    return pos_next;
-}
-
-/* search in all scopes */
-static int find_private_class_field_all(JSContext *ctx, JSFunctionDef *fd,
-                                        JSAtom name, int scope_level)
-{
-    int idx;
-
-    idx = fd->scopes[scope_level].first;
-    while (idx >= 0) {
-        if (fd->vars[idx].var_name == name)
-            return idx;
-        idx = fd->vars[idx].scope_next;
-    }
-    return -1;
-}
-
-static void get_loc_or_ref(DynBuf *bc, BOOL is_ref, int idx)
-{
-    if (is_ref) 
-        dbuf_putc(bc, OP_get_var_ref);
-    else
-        dbuf_putc(bc, OP_get_loc);
-    dbuf_put_u16(bc, idx);
-    
-}
-
-static int resolve_scope_private_field1(JSContext *ctx,
-                                        BOOL *pis_ref, int *pvar_kind,
-                                        JSFunctionDef *s,
-                                        JSAtom var_name, int scope_level)
-{
-    int idx, var_kind;
-    JSFunctionDef *fd;
-    BOOL is_ref;
-    
-    fd = s;
-    is_ref = FALSE;
-    for(;;) {
-        idx = find_private_class_field_all(ctx, fd, var_name, scope_level);
-        if (idx >= 0) {
-            var_kind = fd->vars[idx].var_kind;
-            if (is_ref) {
-                idx = get_closure_var(ctx, s, fd, FALSE, idx, var_name,
-                                      TRUE, TRUE, JS_VAR_NORMAL);
-                if (idx < 0)
-                    return -1;
-            }
-            break;
-        }
-        scope_level = fd->parent_scope_level;
-        if (!fd->parent) {
-            char buf[ATOM_GET_STR_BUF_SIZE];
-
-            if (fd->is_eval) {
-                /* closure of the eval function (top level) */
-                for (idx = 0; idx < fd->closure_var_count; idx++) {
-                    JSClosureVar *cv = &fd->closure_var[idx];
-                    if (cv->var_name == var_name) {
-                        var_kind = cv->var_kind;
-                        is_ref = TRUE;
-                        if (fd != s) {
-                            idx = get_closure_var2(ctx, s, fd,
-                                                   FALSE,
-                                                   cv->is_arg, idx,
-                                                   cv->var_name, cv->is_const,
-                                                   cv->is_lexical,
-                                                   cv->var_kind);
-                            if (idx < 0)
-                                return -1;
-                        }
-                        goto done;
-                    }
-                }
-            }
-            /* XXX: no line number info */
-            JS_ThrowSyntaxError(ctx, "undefined private field %s",
-                                JS_AtomGetStr(ctx, buf, sizeof(buf), var_name));
-            return -1;
-        } else {
-            fd = fd->parent;
-        }
-        is_ref = TRUE;
-    }
- done:
-    *pis_ref = is_ref;
-    *pvar_kind = var_kind;
-    return idx;
-}
-
-/* return 0 if OK or -1 if the private field could not be resolved */
-static int resolve_scope_private_field(JSContext *ctx, JSFunctionDef *s,
-                                       JSAtom var_name, int scope_level, int op,
-                                       DynBuf *bc)
-{
-    int idx, var_kind;
-    BOOL is_ref;
-
-    idx = resolve_scope_private_field1(ctx, &is_ref, &var_kind, s,
-                                       var_name, scope_level);
-    if (idx < 0)
-        return -1;
-    assert(var_kind != JS_VAR_NORMAL);
-    switch (op) {
-    case OP_scope_get_private_field:
-    case OP_scope_get_private_field2:
-        switch(var_kind) {
-        case JS_VAR_PRIVATE_FIELD:
-            if (op == OP_scope_get_private_field2)
-                dbuf_putc(bc, OP_dup);
-            get_loc_or_ref(bc, is_ref, idx);
-            dbuf_putc(bc, OP_get_private_field);
-            break;
-        case JS_VAR_PRIVATE_METHOD:
-            get_loc_or_ref(bc, is_ref, idx);
-            dbuf_putc(bc, OP_check_brand);
-            if (op != OP_scope_get_private_field2)
-                dbuf_putc(bc, OP_nip);
-            break;
-        case JS_VAR_PRIVATE_GETTER:
-        case JS_VAR_PRIVATE_GETTER_SETTER:
-            if (op == OP_scope_get_private_field2)
-                dbuf_putc(bc, OP_dup);
-            get_loc_or_ref(bc, is_ref, idx);
-            dbuf_putc(bc, OP_check_brand);
-            dbuf_putc(bc, OP_call_method);
-            dbuf_put_u16(bc, 0);
-            break;
-        case JS_VAR_PRIVATE_SETTER:
-            /* XXX: add clearer error message */
-            dbuf_putc(bc, OP_throw_var);
-            dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-            dbuf_putc(bc, JS_THROW_VAR_RO);
-            break;
-        default:
-            abort();
-        }
-        break;
-    case OP_scope_put_private_field:
-        switch(var_kind) {
-        case JS_VAR_PRIVATE_FIELD:
-            get_loc_or_ref(bc, is_ref, idx);
-            dbuf_putc(bc, OP_put_private_field);
-            break;
-        case JS_VAR_PRIVATE_METHOD:
-        case JS_VAR_PRIVATE_GETTER:
-            /* XXX: add clearer error message */
-            dbuf_putc(bc, OP_throw_var);
-            dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
-            dbuf_putc(bc, JS_THROW_VAR_RO);
-            break;
-        case JS_VAR_PRIVATE_SETTER:
-        case JS_VAR_PRIVATE_GETTER_SETTER:
-            {
-                JSAtom setter_name = get_private_setter_name(ctx, var_name);
-                if (setter_name == JS_ATOM_NULL)
-                    return -1;
-                idx = resolve_scope_private_field1(ctx, &is_ref,
-                                                   &var_kind, s,
-                                                   setter_name, scope_level);
-                JS_FreeAtom(ctx, setter_name);
-                if (idx < 0)
-                    return -1;
-                assert(var_kind == JS_VAR_PRIVATE_SETTER);
-                get_loc_or_ref(bc, is_ref, idx);
-                dbuf_putc(bc, OP_swap);
-                /* obj func value */
-                dbuf_putc(bc, OP_rot3r);
-                /* value obj func */
-                dbuf_putc(bc, OP_check_brand);
-                dbuf_putc(bc, OP_rot3l);
-                /* obj func value */
-                dbuf_putc(bc, OP_call_method);
-                dbuf_put_u16(bc, 1);
-            }
-            break;
-        default:
-            abort();
-        }
-        break;
-    default:
-        abort();
-    }
-    return 0;
-}
-
-static void mark_eval_captured_variables(JSContext *ctx, JSFunctionDef *s,
-                                         int scope_level)
-{
-    int idx;
-    JSVarDef *vd;
-
-    for (idx = s->scopes[scope_level].first; idx >= 0;) {
-        vd = &s->vars[idx];
-        vd->is_captured = 1;
-        idx = vd->scope_next;
-    }
-}
-
-static void add_eval_variables(JSContext *ctx, JSFunctionDef *s)
-{
-    JSFunctionDef *fd;
-    JSVarDef *vd;
-    int i, scope_level, scope_idx;
-    BOOL has_arguments_binding, has_this_binding;
-
-    /* in non strict mode, variables are created in the caller's
-       environment object */
-    if (!s->is_eval && !(s->js_mode & JS_MODE_STRICT)) {
-        s->var_object_idx = add_var(ctx, s, JS_ATOM__var_);
-    }
-
-    /* eval can potentially use 'arguments' so we must define it */
-    has_this_binding = s->has_this_binding;
-    if (has_this_binding) {
-        if (s->this_var_idx < 0)
-            s->this_var_idx = add_var_this(ctx, s);
-        if (s->new_target_var_idx < 0)
-            s->new_target_var_idx = add_var(ctx, s, JS_ATOM_new_target);
-        if (s->is_derived_class_constructor && s->this_active_func_var_idx < 0)
-            s->this_active_func_var_idx = add_var(ctx, s, JS_ATOM_this_active_func);
-        if (s->has_home_object && s->home_object_var_idx < 0)
-            s->home_object_var_idx = add_var(ctx, s, JS_ATOM_home_object);
-    }
-    has_arguments_binding = s->has_arguments_binding;
-    if (has_arguments_binding)
-        add_arguments_var(ctx, s, JS_ATOM_arguments);
-    if (s->is_func_expr && s->func_name != JS_ATOM_NULL)
-        add_func_var(ctx, s, s->func_name);
-
-    /* eval can use all the variables of the enclosing functions, so
-       they must be all put in the closure. The closure variables are
-       ordered by scope. It works only because no closure are created
-       before. */
-    assert(s->is_eval || s->closure_var_count == 0);
-
-    /* XXX: inefficient, but eval performance is less critical */
-    fd = s;
-    for(;;) {
-        scope_level = fd->parent_scope_level;
-        fd = fd->parent;
-        if (!fd)
-            break;
-        scope_idx = fd->scopes[scope_level].first;
-        /* add 'this' if it was not previously added */
-        if (!has_this_binding && fd->has_this_binding) {
-            if (fd->this_var_idx < 0)
-                fd->this_var_idx = add_var_this(ctx, fd);
-            if (fd->new_target_var_idx < 0)
-                fd->new_target_var_idx = add_var(ctx, fd, JS_ATOM_new_target);
-            if (fd->is_derived_class_constructor && fd->this_active_func_var_idx < 0)
-                fd->this_active_func_var_idx = add_var(ctx, fd, JS_ATOM_this_active_func);
-            if (fd->has_home_object && fd->home_object_var_idx < 0)
-                fd->home_object_var_idx = add_var(ctx, fd, JS_ATOM_home_object);
-            has_this_binding = TRUE;
-        }
-        /* add 'arguments' if it was not previously added */
-        if (!has_arguments_binding && fd->has_arguments_binding) {
-            add_arguments_var(ctx, fd, JS_ATOM_arguments);
-            has_arguments_binding = TRUE;
-        }
-        /* add function name */
-        if (fd->is_func_expr && fd->func_name != JS_ATOM_NULL)
-            add_func_var(ctx, fd, fd->func_name);
-
-        /* add lexical variables */
-        while (scope_idx >= 0) {
-            vd = &fd->vars[scope_idx];
-            vd->is_captured = 1;
-            get_closure_var(ctx, s, fd, FALSE, scope_idx,
-                            vd->var_name, vd->is_const, vd->is_lexical, vd->var_kind);
-            scope_idx = vd->scope_next;
-        }
-        /* add unscoped variables */
-        for(i = 0; i < fd->arg_count; i++) {
-            vd = &fd->args[i];
-            if (vd->var_name != JS_ATOM_NULL) {
-                get_closure_var(ctx, s, fd,
-                                TRUE, i, vd->var_name, FALSE, FALSE,
-                                JS_VAR_NORMAL);
-            }
-        }
-        for(i = 0; i < fd->var_count; i++) {
-            vd = &fd->vars[i];
-            /* do not close top level last result */
-            if (vd->scope_level == 0 &&
-                vd->var_name != JS_ATOM__ret_ &&
-                vd->var_name != JS_ATOM_NULL) {
-                get_closure_var(ctx, s, fd,
-                                FALSE, i, vd->var_name, FALSE, FALSE,
-                                JS_VAR_NORMAL);
-            }
-        }
-        if (fd->is_eval) {
-            int idx;
-            /* add direct eval variables (we are necessarily at the
-               top level) */
-            for (idx = 0; idx < fd->closure_var_count; idx++) {
-                JSClosureVar *cv = &fd->closure_var[idx];
-                get_closure_var2(ctx, s, fd,
-                                 FALSE, cv->is_arg,
-                                 idx, cv->var_name, cv->is_const,
-                                 cv->is_lexical, cv->var_kind);
-            }
-        }
-    }
-}
-
-/* for direct eval compilation: add references to the variables of the
-   calling function */
-static __exception int add_closure_variables(JSContext *ctx, JSFunctionDef *s,
-                                             JSFunctionBytecode *b, int scope_idx)
-{
-    int i, count;
-    JSVarDef *vd;
-
-    count = b->arg_count + b->var_count + b->closure_var_count;
-    s->closure_var = NULL;
-    s->closure_var_count = 0;
-    s->closure_var_size = count;
-    if (count == 0)
-        return 0;
-    s->closure_var = js_malloc(ctx, sizeof(s->closure_var[0]) * count);
-    if (!s->closure_var)
-        return -1;
-    /* Add lexical variables in scope at the point of evaluation */
-    for (i = scope_idx; i >= 0;) {
-        vd = &b->vardefs[b->arg_count + i];
-        if (vd->scope_level > 0) {
-            JSClosureVar *cv = &s->closure_var[s->closure_var_count++];
-            cv->is_local = TRUE;
-            cv->is_arg = FALSE;
-            cv->is_const = vd->is_const;
-            cv->is_lexical = vd->is_lexical;
-            cv->var_kind = vd->var_kind;
-            cv->var_idx = i;
-            cv->var_name = JS_DupAtom(ctx, vd->var_name);
-        }
-        i = vd->scope_next;
-    }
-    /* Add argument variables */
-    for(i = 0; i < b->arg_count; i++) {
-        JSClosureVar *cv = &s->closure_var[s->closure_var_count++];
-        vd = &b->vardefs[i];
-        cv->is_local = TRUE;
-        cv->is_arg = TRUE;
-        cv->is_const = FALSE;
-        cv->is_lexical = FALSE;
-        cv->var_kind = JS_VAR_NORMAL;
-        cv->var_idx = i;
-        cv->var_name = JS_DupAtom(ctx, vd->var_name);
-    }
-    /* Add local non lexical variables */
-    for(i = 0; i < b->var_count; i++) {
-        vd = &b->vardefs[b->arg_count + i];
-        if (vd->scope_level == 0 && vd->var_name != JS_ATOM__ret_) {
-            JSClosureVar *cv = &s->closure_var[s->closure_var_count++];
-            cv->is_local = TRUE;
-            cv->is_arg = FALSE;
-            cv->is_const = FALSE;
-            cv->is_lexical = FALSE;
-            cv->var_kind = JS_VAR_NORMAL;
-            cv->var_idx = i;
-            cv->var_name = JS_DupAtom(ctx, vd->var_name);
-        }
-    }
-    for(i = 0; i < b->closure_var_count; i++) {
-        JSClosureVar *cv0 = &b->closure_var[i];
-        JSClosureVar *cv = &s->closure_var[s->closure_var_count++];
-        cv->is_local = FALSE;
-        cv->is_arg = cv0->is_arg;
-        cv->is_const = cv0->is_const;
-        cv->is_lexical = cv0->is_lexical;
-        cv->var_kind = cv0->var_kind;
-        cv->var_idx = i;
-        cv->var_name = JS_DupAtom(ctx, cv0->var_name);
-    }
-    return 0;
-}
-
-typedef struct CodeContext {
-    const uint8_t *bc_buf; /* code buffer */
-    int bc_len;   /* length of the code buffer */
-    int pos;      /* position past the matched code pattern */
-    int line_num; /* last visited OP_line_num parameter or -1 */
-    int op;
-    int idx;
-    int label;
-    int val;
-    JSAtom atom;
-} CodeContext;
-
-#define M2(op1, op2)            ((op1) | ((op2) << 8))
-#define M3(op1, op2, op3)       ((op1) | ((op2) << 8) | ((op3) << 16))
-#define M4(op1, op2, op3, op4)  ((op1) | ((op2) << 8) | ((op3) << 16) | ((op4) << 24))
-
-static BOOL code_match(CodeContext *s, int pos, ...)
-{
-    const uint8_t *tab = s->bc_buf;
-    int op, len, op1, line_num, pos_next;
-    va_list ap;
-    BOOL ret = FALSE;
-
-    line_num = -1;
-    va_start(ap, pos);
-
-    for(;;) {
-        op1 = va_arg(ap, int);
-        if (op1 == -1) {
-            s->pos = pos;
-            s->line_num = line_num;
-            ret = TRUE;
-            break;
-        }
-        for (;;) {
-            if (pos >= s->bc_len)
-                goto done;
-            op = tab[pos];
-            len = opcode_info[op].size;
-            pos_next = pos + len;
-            if (pos_next > s->bc_len)
-                goto done;
-            if (op == OP_line_num) {
-                line_num = get_u32(tab + pos + 1);
-                pos = pos_next;
-            } else {
-                break;
-            }
-        }
-        if (op != op1) {
-            if (op1 == (uint8_t)op1 || !op)
-                break;
-            if (op != (uint8_t)op1
-            &&  op != (uint8_t)(op1 >> 8)
-            &&  op != (uint8_t)(op1 >> 16)
-            &&  op != (uint8_t)(op1 >> 24)) {
-                break;
-            }
-            s->op = op;
-        }
-
-        pos++;
-        switch(opcode_info[op].fmt) {
-        case OP_FMT_loc8:
-        case OP_FMT_u8:
-            {
-                int idx = tab[pos];
-                int arg = va_arg(ap, int);
-                if (arg == -1) {
-                    s->idx = idx;
-                } else {
-                    if (arg != idx)
-                        goto done;
-                }
-                break;
-            }
-        case OP_FMT_u16:
-        case OP_FMT_npop:
-        case OP_FMT_loc:
-        case OP_FMT_arg:
-        case OP_FMT_var_ref:
-            {
-                int idx = get_u16(tab + pos);
-                int arg = va_arg(ap, int);
-                if (arg == -1) {
-                    s->idx = idx;
-                } else {
-                    if (arg != idx)
-                        goto done;
-                }
-                break;
-            }
-        case OP_FMT_i32:
-        case OP_FMT_u32:
-        case OP_FMT_label:
-        case OP_FMT_const:
-            {
-                s->label = get_u32(tab + pos);
-                break;
-            }
-        case OP_FMT_label_u16:
-            {
-                s->label = get_u32(tab + pos);
-                s->val = get_u16(tab + pos + 4);
-                break;
-            }
-        case OP_FMT_atom:
-            {
-                s->atom = get_u32(tab + pos);
-                break;
-            }
-        case OP_FMT_atom_u8:
-            {
-                s->atom = get_u32(tab + pos);
-                s->val = get_u8(tab + pos + 4);
-                break;
-            }
-        case OP_FMT_atom_u16:
-            {
-                s->atom = get_u32(tab + pos);
-                s->val = get_u16(tab + pos + 4);
-                break;
-            }
-        case OP_FMT_atom_label_u8:
-            {
-                s->atom = get_u32(tab + pos);
-                s->label = get_u32(tab + pos + 4);
-                s->val = get_u8(tab + pos + 8);
-                break;
-            }
-        default:
-            break;
-        }
-        pos = pos_next;
-    }
- done:
-    va_end(ap);
-    return ret;
-}
-
-static void instantiate_hoisted_definitions(JSContext *ctx, JSFunctionDef *s, DynBuf *bc)
-{
-    int i, idx, var_idx;
-
-    /* add the hoisted functions and variables */
-    for(i = 0; i < s->hoisted_def_count; i++) {
-        JSHoistedDef *hf = &s->hoisted_def[i];
-        int has_closure = 0;
-        BOOL force_init = hf->force_init;
-        if (s->is_global_var && hf->var_name != JS_ATOM_NULL) {
-            /* we are in an eval, so the closure contains all the
-               enclosing variables */
-            /* If the outer function has a variable environment,
-               create a property for the variable there */
-            for(idx = 0; idx < s->closure_var_count; idx++) {
-                JSClosureVar *cv = &s->closure_var[idx];
-                if (cv->var_name == hf->var_name) {
-                    has_closure = 2;
-                    force_init = FALSE;
-                    break;
-                }
-                if (cv->var_name == JS_ATOM__var_) {
-                    dbuf_putc(bc, OP_get_var_ref);
-                    dbuf_put_u16(bc, idx);
-                    has_closure = 1;
-                    force_init = TRUE;
-                    break;
-                }
-            }
-            if (!has_closure) {
-                int flags;
-
-                flags = 0;
-                if (s->eval_type != JS_EVAL_TYPE_GLOBAL)
-                    flags |= JS_PROP_CONFIGURABLE;
-                if (hf->cpool_idx >= 0 && !hf->is_lexical) {
-                    /* global function definitions need a specific handling */
-                    dbuf_putc(bc, OP_fclosure);
-                    dbuf_put_u32(bc, hf->cpool_idx);
-
-                    dbuf_putc(bc, OP_define_func);
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, hf->var_name));
-                    dbuf_putc(bc, flags);
-
-                    goto done_hoisted_def;
-                } else {
-                    if (hf->is_lexical) {
-                        flags |= DEFINE_GLOBAL_LEX_VAR;
-                        if (!hf->is_const)
-                            flags |= JS_PROP_WRITABLE;
-                    }
-                    dbuf_putc(bc, OP_define_var);
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, hf->var_name));
-                    dbuf_putc(bc, flags);
-                }
-            }
-        }
-        if (hf->cpool_idx >= 0 || force_init) {
-            if (hf->cpool_idx >= 0) {
-                dbuf_putc(bc, OP_fclosure);
-                dbuf_put_u32(bc, hf->cpool_idx);
-                if (hf->var_name == JS_ATOM__default_) {
-                    /* set default export function name */
-                    dbuf_putc(bc, OP_set_name);
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, JS_ATOM_default));
-                }
-            } else {
-                dbuf_putc(bc, OP_undefined);
-            }
-            if (s->is_global_var) {
-                if (has_closure == 2) {
-                    dbuf_putc(bc, OP_put_var_ref);
-                    dbuf_put_u16(bc, idx);
-                } else if (has_closure == 1) {
-                    dbuf_putc(bc, OP_define_field);
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, hf->var_name));
-                    dbuf_putc(bc, OP_drop);
-                } else {
-                    /* XXX: Check if variable is writable and enumerable */
-                    dbuf_putc(bc, OP_put_var);
-                    dbuf_put_u32(bc, JS_DupAtom(ctx, hf->var_name));
-                }
-            } else {
-                var_idx = hf->var_idx;
-                if (var_idx & ARGUMENT_VAR_OFFSET) {
-                    dbuf_putc(bc, OP_put_arg);
-                    dbuf_put_u16(bc, var_idx - ARGUMENT_VAR_OFFSET);
-                } else {
-                    dbuf_putc(bc, OP_put_loc);
-                    dbuf_put_u16(bc, var_idx);
-                }
-            }
-        }
-    done_hoisted_def:
-        JS_FreeAtom(ctx, hf->var_name);
-    }
-    js_free(ctx, s->hoisted_def);
-    s->hoisted_def = NULL;
-    s->hoisted_def_count = 0;
-    s->hoisted_def_size = 0;
-}
-
-static int skip_dead_code(JSFunctionDef *s, const uint8_t *bc_buf, int bc_len,
-                          int pos, int *linep)
-{
-    int op, len, label;
-
-    for (; pos < bc_len; pos += len) {
-        op = bc_buf[pos];
-        len = opcode_info[op].size;
-        if (op == OP_line_num) {
-            *linep = get_u32(bc_buf + pos + 1);
-        } else
-        if (op == OP_label) {
-            label = get_u32(bc_buf + pos + 1);
-            if (update_label(s, label, 0) > 0)
-                break;
-#if 0
-            if (s->label_slots[label].first_reloc) {
-                printf("line %d: unreferenced label %d:%d has relocations\n",
-                       *linep, label, s->label_slots[label].pos2);
-            }
-#endif
-            assert(s->label_slots[label].first_reloc == NULL);
-        } else {
-            /* XXX: output a warning for unreachable code? */
-            JSAtom atom;
-            switch(opcode_info[op].fmt) {
-            case OP_FMT_label:
-            case OP_FMT_label_u16:
-                label = get_u32(bc_buf + pos + 1);
-                update_label(s, label, -1);
-                break;
-            case OP_FMT_atom_label_u8:
-            case OP_FMT_atom_label_u16:
-                label = get_u32(bc_buf + pos + 5);
-                update_label(s, label, -1);
-                /* fall thru */
-            case OP_FMT_atom:
-            case OP_FMT_atom_u8:
-            case OP_FMT_atom_u16:
-                atom = get_u32(bc_buf + pos + 1);
-                JS_FreeAtom(s->ctx, atom);
-                break;
-            default:
-                break;
-            }
-        }
-    }
-    return pos;
-}
-
-static int get_label_pos(JSFunctionDef *s, int label)
-{
-    int i, pos;
-    for (i = 0; i < 20; i++) {
-        pos = s->label_slots[label].pos;
-        for (;;) {
-            switch (s->byte_code.buf[pos]) {
-            case OP_line_num:
-            case OP_label:
-                pos += 5;
-                continue;
-            case OP_goto:
-                label = get_u32(s->byte_code.buf + pos + 1);
-                break;
-            default:
-                return pos;
-            }
-            break;
-        }
-    }
-    return pos;
-}
-
-/* convert global variable accesses to local variables or closure
-   variables when necessary */
-static __exception int resolve_variables(JSContext *ctx, JSFunctionDef *s)
-{
-    int pos, pos_next, bc_len, op, len, i, idx, arg_valid, line_num;
-    uint8_t *bc_buf;
-    JSAtom var_name;
-    DynBuf bc_out;
-    CodeContext cc;
-    int scope;
-
-    cc.bc_buf = bc_buf = s->byte_code.buf;
-    cc.bc_len = bc_len = s->byte_code.size;
-    js_dbuf_init(ctx, &bc_out);
-
-    /* first pass for runtime checks (must be done before the
-       variables are created) */
-    if (s->is_global_var) {
-        for(i = 0; i < s->hoisted_def_count; i++) {
-            JSHoistedDef *hf = &s->hoisted_def[i];
-            int flags;
-
-            if (hf->var_name != JS_ATOM_NULL) {
-                /* check if global variable (XXX: simplify) */
-                for(idx = 0; idx < s->closure_var_count; idx++) {
-                    JSClosureVar *cv = &s->closure_var[idx];
-                    if (cv->var_name == hf->var_name) {
-                        if (s->eval_type == JS_EVAL_TYPE_DIRECT &&
-                            (cv->is_lexical ||
-                             (cv->var_kind == JS_VAR_CATCH && hf->is_for_of))) {
-                            /* Check if a lexical variable is
-                               redefined as 'var'. XXX: Could abort
-                               compilation here, but for consistency
-                               with the other checks, we delay the
-                               error generation. */
-                            dbuf_putc(&bc_out, OP_throw_var);
-                            dbuf_put_u32(&bc_out, JS_DupAtom(ctx, hf->var_name));
-                            dbuf_putc(&bc_out, JS_THROW_VAR_REDECL);
-                        }
-                        goto next;
-                    }
-                    if (cv->var_name == JS_ATOM__var_)
-                        goto next;
-                }
-
-                dbuf_putc(&bc_out, OP_check_define_var);
-                dbuf_put_u32(&bc_out, JS_DupAtom(ctx, hf->var_name));
-                flags = 0;
-                if (hf->is_lexical)
-                    flags |= DEFINE_GLOBAL_LEX_VAR;
-                if (hf->cpool_idx >= 0)
-                    flags |= DEFINE_GLOBAL_FUNC_VAR;
-                dbuf_putc(&bc_out, flags);
-            }
-        next: ;
-        }
-    }
-
-    arg_valid = 0;
-    line_num = 0; /* avoid warning */
-    for (pos = 0; pos < bc_len; pos = pos_next) {
-        op = bc_buf[pos];
-        len = opcode_info[op].size;
-        pos_next = pos + len;
-        switch(op) {
-        case OP_line_num:
-            line_num = get_u32(bc_buf + pos + 1);
-            s->line_number_size++;
-            goto no_change;
-
-        case OP_set_arg_valid_upto:
-            arg_valid = get_u16(bc_buf + pos + 1);
-            break;
-        case OP_eval: /* convert scope index to adjusted variable index */
-            scope = get_u16(bc_buf + pos + 1);
-            mark_eval_captured_variables(ctx, s, scope);
-            dbuf_putc(&bc_out, op);
-            dbuf_put_u16(&bc_out, s->scopes[scope].first + 1);
-            break;
-        case OP_scope_get_var_undef:
-        case OP_scope_get_var:
-        case OP_scope_put_var:
-        case OP_scope_delete_var:
-        case OP_scope_get_ref:
-        case OP_scope_put_var_init:
-            var_name = get_u32(bc_buf + pos + 1);
-            scope = get_u16(bc_buf + pos + 5);
-            pos_next = resolve_scope_var(ctx, s, var_name, scope, op, &bc_out,
-                                         NULL, NULL, pos_next, arg_valid);
-            JS_FreeAtom(ctx, var_name);
-            break;
-        case OP_scope_make_ref:
-            {
-                int label;
-                LabelSlot *ls;
-                var_name = get_u32(bc_buf + pos + 1);
-                label = get_u32(bc_buf + pos + 5);
-                scope = get_u16(bc_buf + pos + 9);
-                ls = &s->label_slots[label];
-                ls->ref_count--;  /* always remove label reference */
-                pos_next = resolve_scope_var(ctx, s, var_name, scope, op, &bc_out,
-                                             bc_buf, ls, pos_next, arg_valid);
-                JS_FreeAtom(ctx, var_name);
-            }
-            break;
-        case OP_scope_get_private_field:
-        case OP_scope_get_private_field2:
-        case OP_scope_put_private_field:
-            {
-                int ret;
-                var_name = get_u32(bc_buf + pos + 1);
-                scope = get_u16(bc_buf + pos + 5);
-                ret = resolve_scope_private_field(ctx, s, var_name, scope, op, &bc_out);
-                if (ret < 0)
-                    goto fail;
-                JS_FreeAtom(ctx, var_name);
-            }
-            break;
-        case OP_gosub:
-            s->jump_size++;
-            if (OPTIMIZE) {
-                /* remove calls to empty finalizers  */
-                int label;
-                LabelSlot *ls;
-
-                label = get_u32(bc_buf + pos + 1);
-                assert(label >= 0 && label < s->label_count);
-                ls = &s->label_slots[label];
-                if (code_match(&cc, ls->pos, OP_ret, -1)) {
-                    ls->ref_count--;
-                    break;
-                }
-            }
-            goto no_change;
-        case OP_drop:
-            if (0) {
-                /* remove drops before return_undef */
-                /* do not perform this optimization in pass2 because
-                   it breaks patterns recognised in resolve_labels */
-                int pos1 = pos_next;
-                int line1 = line_num;
-                while (code_match(&cc, pos1, OP_drop, -1)) {
-                    if (cc.line_num >= 0) line1 = cc.line_num;
-                    pos1 = cc.pos;
-                }
-                if (code_match(&cc, pos1, OP_return_undef, -1)) {
-                    pos_next = pos1;
-                    if (line1 != -1 && line1 != line_num) {
-                        line_num = line1;
-                        s->line_number_size++;
-                        dbuf_putc(&bc_out, OP_line_num);
-                        dbuf_put_u32(&bc_out, line_num);
-                    }
-                    break;
-                }
-            }
-            goto no_change;
-        case OP_insert3:
-            if (OPTIMIZE) {
-                /* Transformation: insert3 put_array_el|put_ref_value drop -> put_array_el|put_ref_value */
-                if (code_match(&cc, pos_next, M2(OP_put_array_el, OP_put_ref_value), OP_drop, -1)) {
-                    dbuf_putc(&bc_out, cc.op);
-                    pos_next = cc.pos;
-                    if (cc.line_num != -1 && cc.line_num != line_num) {
-                        line_num = cc.line_num;
-                        s->line_number_size++;
-                        dbuf_putc(&bc_out, OP_line_num);
-                        dbuf_put_u32(&bc_out, line_num);
-                    }
-                    break;
-                }
-            }
-            goto no_change;
-
-        case OP_goto:
-            s->jump_size++;
-            /* fall thru */
-        case OP_tail_call:
-        case OP_tail_call_method:
-        case OP_return:
-        case OP_return_undef:
-        case OP_throw:
-        case OP_throw_var:
-        case OP_ret:
-            if (OPTIMIZE) {
-                /* remove dead code */
-                int line = -1;
-                dbuf_put(&bc_out, bc_buf + pos, len);
-                pos = skip_dead_code(s, bc_buf, bc_len, pos + len, &line);
-                pos_next = pos;
-                if (pos < bc_len && line >= 0 && line_num != line) {
-                    line_num = line;
-                    s->line_number_size++;
-                    dbuf_putc(&bc_out, OP_line_num);
-                    dbuf_put_u32(&bc_out, line_num);
-                }
-                break;
-            }
-            goto no_change;
-
-        case OP_label:
-            {
-                int label;
-                LabelSlot *ls;
-
-                label = get_u32(bc_buf + pos + 1);
-                assert(label >= 0 && label < s->label_count);
-                ls = &s->label_slots[label];
-                ls->pos2 = bc_out.size + opcode_info[op].size;
-            }
-            goto no_change;
-
-        case OP_enter_scope:
-            {
-                int scope_idx, scope = get_u16(bc_buf + pos + 1);
-
-                if (scope == 1) {
-                    instantiate_hoisted_definitions(ctx, s, &bc_out);
-                }
-
-                for(scope_idx = s->scopes[scope].first; scope_idx >= 0;) {
-                    JSVarDef *vd = &s->vars[scope_idx];
-                    if (vd->scope_level == scope) {
-                        if (vd->is_function) {
-                            /* Initialize lexical variable upon entering scope */
-                            dbuf_putc(&bc_out, OP_fclosure);
-                            dbuf_put_u32(&bc_out, vd->func_pool_idx);
-                            dbuf_putc(&bc_out, OP_put_loc);
-                            dbuf_put_u16(&bc_out, scope_idx);
-                        } else {
-                            /* XXX: should check if variable can be used
-                               before initialization */
-                            dbuf_putc(&bc_out, OP_set_loc_uninitialized);
-                            dbuf_put_u16(&bc_out, scope_idx);
-                        }
-                        scope_idx = vd->scope_next;
-                    } else {
-                        break;
-                    }
-                }
-            }
-            break;
-
-        case OP_leave_scope:
-            {
-                int scope_idx, scope = get_u16(bc_buf + pos + 1);
-
-                for(scope_idx = s->scopes[scope].first; scope_idx >= 0;) {
-                    JSVarDef *vd = &s->vars[scope_idx];
-                    if (vd->scope_level == scope) {
-                        if (vd->is_captured) {
-                            dbuf_putc(&bc_out, OP_close_loc);
-                            dbuf_put_u16(&bc_out, scope_idx);
-                        }
-                        scope_idx = vd->scope_next;
-                    } else {
-                        break;
-                    }
-                }
-            }
-            break;
-
-        case OP_set_name:
-            {
-                /* remove dummy set_name opcodes */
-                JSAtom name = get_u32(bc_buf + pos + 1);
-                if (name == JS_ATOM_NULL)
-                    break;
-            }
-            goto no_change;
-
-        case OP_if_false:
-        case OP_if_true:
-        case OP_catch:
-            s->jump_size++;
-            goto no_change;
-
-        case OP_dup:
-            if (OPTIMIZE) {
-                /* Transformation: dup if_false(l1) drop, l1: if_false(l2) -> if_false(l2) */
-                /* Transformation: dup if_true(l1) drop, l1: if_true(l2) -> if_true(l2) */
-                if (code_match(&cc, pos_next, M2(OP_if_false, OP_if_true), OP_drop, -1)) {
-                    int lab0, lab1, op1, pos1, line1, pos2;
-                    lab0 = lab1 = cc.label;
-                    assert(lab1 >= 0 && lab1 < s->label_count);
-                    op1 = cc.op;
-                    pos1 = cc.pos;
-                    line1 = cc.line_num;
-                    while (code_match(&cc, (pos2 = get_label_pos(s, lab1)), OP_dup, op1, OP_drop, -1)) {
-                        lab1 = cc.label;
-                    }
-                    if (code_match(&cc, pos2, op1, -1)) {
-                        s->jump_size++;
-                        update_label(s, lab0, -1);
-                        update_label(s, cc.label, +1);
-                        dbuf_putc(&bc_out, op1);
-                        dbuf_put_u32(&bc_out, cc.label);
-                        pos_next = pos1;
-                        if (line1 != -1 && line1 != line_num) {
-                            line_num = line1;
-                            s->line_number_size++;
-                            dbuf_putc(&bc_out, OP_line_num);
-                            dbuf_put_u32(&bc_out, line_num);
-                        }
-                        break;
-                    }
-                }
-            }
-            goto no_change;
-
-        case OP_nop:
-            /* remove erased code */
-            break;
-
-        default:
-        no_change:
-            dbuf_put(&bc_out, bc_buf + pos, len);
-            break;
-        }
-    }
-
-    /* set the new byte code */
-    dbuf_free(&s->byte_code);
-    s->byte_code = bc_out;
-    if (dbuf_error(&s->byte_code)) {
-        JS_ThrowOutOfMemory(ctx);
-        return -1;
-    }
-    return 0;
- fail:
-    /* continue the copy to keep the atom refcounts consistent */
-    /* XXX: find a better solution ? */
-    for (; pos < bc_len; pos = pos_next) {
-        op = bc_buf[pos];
-        len = opcode_info[op].size;
-        pos_next = pos + len;
-        dbuf_put(&bc_out, bc_buf + pos, len);
-    }
-    dbuf_free(&s->byte_code);
-    s->byte_code = bc_out;
-    return -1;
-}
-
-/* the pc2line table gives a line number for each PC value */
-static void add_pc2line_info(JSFunctionDef *s, uint32_t pc, int line_num)
-{
-    if (s->line_number_slots != NULL
-    &&  s->line_number_count < s->line_number_size
-    &&  pc >= s->line_number_last_pc
-    &&  line_num != s->line_number_last) {
-        s->line_number_slots[s->line_number_count].pc = pc;
-        s->line_number_slots[s->line_number_count].line_num = line_num;
-        s->line_number_count++;
-        s->line_number_last_pc = pc;
-        s->line_number_last = line_num;
-    }
-}
-
-static void compute_pc2line_info(JSFunctionDef *s)
-{
-    if (!(s->js_mode & JS_MODE_STRIP) && s->line_number_slots) {
-        int last_line_num = s->line_num;
-        uint32_t last_pc = 0;
-        int i;
-
-        js_dbuf_init(s->ctx, &s->pc2line);
-        for (i = 0; i < s->line_number_count; i++) {
-            uint32_t pc = s->line_number_slots[i].pc;
-            int line_num = s->line_number_slots[i].line_num;
-            int diff_pc, diff_line;
-
-            if (line_num < 0)
-                continue;
-
-            diff_pc = pc - last_pc;
-            diff_line = line_num - last_line_num;
-            if (diff_line == 0 || diff_pc < 0)
-                continue;
-
-            if (diff_line >= PC2LINE_BASE &&
-                diff_line < PC2LINE_BASE + PC2LINE_RANGE &&
-                diff_pc <= PC2LINE_DIFF_PC_MAX) {
-                dbuf_putc(&s->pc2line, (diff_line - PC2LINE_BASE) +
-                          diff_pc * PC2LINE_RANGE + PC2LINE_OP_FIRST);
-            } else {
-                /* longer encoding */
-                dbuf_putc(&s->pc2line, 0);
-                dbuf_put_leb128(&s->pc2line, diff_pc);
-                dbuf_put_sleb128(&s->pc2line, diff_line);
-            }
-            last_pc = pc;
-            last_line_num = line_num;
-        }
-    }
-}
-
-static RelocEntry *add_reloc(JSContext *ctx, LabelSlot *ls, uint32_t addr, int size)
-{
-    RelocEntry *re;
-    re = js_malloc(ctx, sizeof(*re));
-    if (!re)
-        return NULL;
-    re->addr = addr;
-    re->size = size;
-    re->next = ls->first_reloc;
-    ls->first_reloc = re;
-    return re;
-}
-
-static BOOL code_has_label(CodeContext *s, int pos, int label)
-{
-    while (pos < s->bc_len) {
-        int op = s->bc_buf[pos];
-        if (op == OP_line_num) {
-            pos += 5;
-            continue;
-        }
-        if (op == OP_label) {
-            int lab = get_u32(s->bc_buf + pos + 1);
-            if (lab == label)
-                return TRUE;
-            pos += 5;
-            continue;
-        }
-        if (op == OP_goto) {
-            int lab = get_u32(s->bc_buf + pos + 1);
-            if (lab == label)
-                return TRUE;
-        }
-        break;
-    }
-    return FALSE;
-}
-
-/* return the target label, following the OP_goto jumps
-   the first opcode at destination is stored in *pop
- */
-static int find_jump_target(JSFunctionDef *s, int label, int *pop, int *pline)
-{
-    int i, pos, op;
-
-    update_label(s, label, -1);
-    for (i = 0; i < 10; i++) {
-        assert(label >= 0 && label < s->label_count);
-        pos = s->label_slots[label].pos2;
-        for (;;) {
-            switch(op = s->byte_code.buf[pos]) {
-            case OP_line_num:
-                if (pline)
-                    *pline = get_u32(s->byte_code.buf + pos + 1);
-                /* fall thru */
-            case OP_label:
-                pos += opcode_info[op].size;
-                continue;
-            case OP_goto:
-                label = get_u32(s->byte_code.buf + pos + 1);
-                break;
-            case OP_drop:
-                /* ignore drop opcodes if followed by OP_return_undef */
-                while (s->byte_code.buf[++pos] == OP_drop)
-                    continue;
-                if (s->byte_code.buf[pos] == OP_return_undef)
-                    op = OP_return_undef;
-                /* fall thru */
-            default:
-                goto done;
-            }
-            break;
-        }
-    }
-    /* cycle detected, could issue a warning */
- done:
-    *pop = op;
-    update_label(s, label, +1);
-    return label;
-}
-
-static void push_short_int(DynBuf *bc_out, int val)
-{
-#if SHORT_OPCODES
-    if (val >= -1 && val <= 7) {
-        dbuf_putc(bc_out, OP_push_0 + val);
-        return;
-    }
-    if (val == (int8_t)val) {
-        dbuf_putc(bc_out, OP_push_i8);
-        dbuf_putc(bc_out, val);
-        return;
-    }
-    if (val == (int16_t)val) {
-        dbuf_putc(bc_out, OP_push_i16);
-        dbuf_put_u16(bc_out, val);
-        return;
-    }
-#endif
-    dbuf_putc(bc_out, OP_push_i32);
-    dbuf_put_u32(bc_out, val);
-}
-
-static void put_short_code(DynBuf *bc_out, int op, int idx)
-{
-#if SHORT_OPCODES
-    if (idx < 4) {
-        switch (op) {
-        case OP_get_loc:
-            dbuf_putc(bc_out, OP_get_loc0 + idx);
-            return;
-        case OP_put_loc:
-            dbuf_putc(bc_out, OP_put_loc0 + idx);
-            return;
-        case OP_set_loc:
-            dbuf_putc(bc_out, OP_set_loc0 + idx);
-            return;
-        case OP_get_arg:
-            dbuf_putc(bc_out, OP_get_arg0 + idx);
-            return;
-        case OP_put_arg:
-            dbuf_putc(bc_out, OP_put_arg0 + idx);
-            return;
-        case OP_set_arg:
-            dbuf_putc(bc_out, OP_set_arg0 + idx);
-            return;
-        case OP_get_var_ref:
-            dbuf_putc(bc_out, OP_get_var_ref0 + idx);
-            return;
-        case OP_put_var_ref:
-            dbuf_putc(bc_out, OP_put_var_ref0 + idx);
-            return;
-        case OP_set_var_ref:
-            dbuf_putc(bc_out, OP_set_var_ref0 + idx);
-            return;
-        case OP_call:
-            dbuf_putc(bc_out, OP_call0 + idx);
-            return;
-        }
-    }
-    if (idx < 256) {
-        switch (op) {
-        case OP_get_loc:
-            dbuf_putc(bc_out, OP_get_loc8);
-            dbuf_putc(bc_out, idx);
-            return;
-        case OP_put_loc:
-            dbuf_putc(bc_out, OP_put_loc8);
-            dbuf_putc(bc_out, idx);
-            return;
-        case OP_set_loc:
-            dbuf_putc(bc_out, OP_set_loc8);
-            dbuf_putc(bc_out, idx);
-            return;
-        }
-    }
-#endif
-    dbuf_putc(bc_out, op);
-    dbuf_put_u16(bc_out, idx);
-}
-
-/* peephole optimizations and resolve goto/labels */
-static __exception int resolve_labels(JSContext *ctx, JSFunctionDef *s)
-{
-    int pos, pos_next, bc_len, op, op1, len, i, line_num;
-    const uint8_t *bc_buf;
-    DynBuf bc_out;
-    LabelSlot *label_slots, *ls;
-    RelocEntry *re, *re_next;
-    CodeContext cc;
-    int label;
-#if SHORT_OPCODES
-    JumpSlot *jp;
-#endif
-
-    label_slots = s->label_slots;
-
-    line_num = s->line_num;
-
-    cc.bc_buf = bc_buf = s->byte_code.buf;
-    cc.bc_len = bc_len = s->byte_code.size;
-    js_dbuf_init(ctx, &bc_out);
-
-#if SHORT_OPCODES
-    if (s->jump_size) {
-        s->jump_slots = js_mallocz(s->ctx, sizeof(*s->jump_slots) * s->jump_size);
-        if (s->jump_slots == NULL)
-            return -1;
-    }
-#endif
-    /* XXX: Should skip this phase if not generating SHORT_OPCODES */
-    if (s->line_number_size && !(s->js_mode & JS_MODE_STRIP)) {
-        s->line_number_slots = js_mallocz(s->ctx, sizeof(*s->line_number_slots) * s->line_number_size);
-        if (s->line_number_slots == NULL)
-            return -1;
-        s->line_number_last = s->line_num;
-        s->line_number_last_pc = 0;
-    }
-
-    /* initialize the 'home_object' variable if needed */
-    if (s->home_object_var_idx >= 0) {
-        dbuf_putc(&bc_out, OP_special_object);
-        dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_HOME_OBJECT);
-        put_short_code(&bc_out, OP_put_loc, s->home_object_var_idx);
-    }
-    /* initialize the 'this.active_func' variable if needed */
-    if (s->this_active_func_var_idx >= 0) {
-        dbuf_putc(&bc_out, OP_special_object);
-        dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_THIS_FUNC);
-        put_short_code(&bc_out, OP_put_loc, s->this_active_func_var_idx);
-    }
-    /* initialize the 'new.target' variable if needed */
-    if (s->new_target_var_idx >= 0) {
-        dbuf_putc(&bc_out, OP_special_object);
-        dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_NEW_TARGET);
-        put_short_code(&bc_out, OP_put_loc, s->new_target_var_idx);
-    }
-    /* initialize the 'this' variable if needed. In a derived class
-       constructor, this is initially uninitialized. */
-    if (s->this_var_idx >= 0) {
-        if (s->is_derived_class_constructor) {
-            dbuf_putc(&bc_out, OP_set_loc_uninitialized);
-            dbuf_put_u16(&bc_out, s->this_var_idx);
-        } else {
-            dbuf_putc(&bc_out, OP_push_this);
-            put_short_code(&bc_out, OP_put_loc, s->this_var_idx);
-        }
-    }
-    /* initialize the 'arguments' variable if needed */
-    if (s->arguments_var_idx >= 0) {
-        if ((s->js_mode & JS_MODE_STRICT) || !s->has_simple_parameter_list) {
-            dbuf_putc(&bc_out, OP_special_object);
-            dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_ARGUMENTS);
-        } else {
-            dbuf_putc(&bc_out, OP_special_object);
-            dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_MAPPED_ARGUMENTS);
-        }
-        put_short_code(&bc_out, OP_put_loc, s->arguments_var_idx);
-    }
-    /* initialize a reference to the current function if needed */
-    if (s->func_var_idx >= 0) {
-        dbuf_putc(&bc_out, OP_special_object);
-        dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_THIS_FUNC);
-        put_short_code(&bc_out, OP_put_loc, s->func_var_idx);
-    }
-    /* initialize the variable environment object if needed */
-    if (s->var_object_idx >= 0) {
-        dbuf_putc(&bc_out, OP_special_object);
-        dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_VAR_OBJECT);
-        put_short_code(&bc_out, OP_put_loc, s->var_object_idx);
-    }
-
-    for (pos = 0; pos < bc_len; pos = pos_next) {
-        int val;
-        op = bc_buf[pos];
-        len = opcode_info[op].size;
-        pos_next = pos + len;
-        switch(op) {
-        case OP_close_var_object:
-            {
-                if (s->var_object_idx >= 0) {
-                    /* close the var object and create a new one */
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_close_loc);
-                    dbuf_put_u16(&bc_out, s->var_object_idx);
-                    dbuf_putc(&bc_out, OP_special_object);
-                    dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_VAR_OBJECT);
-                    put_short_code(&bc_out, OP_put_loc, s->var_object_idx);
-                }
-            }
-            break;
-
-        case OP_line_num:
-            /* line number info (for debug). We put it in a separate
-               compressed table to reduce memory usage and get better
-               performance */
-            line_num = get_u32(bc_buf + pos + 1);
-            break;
-
-        case OP_label:
-            {
-                label = get_u32(bc_buf + pos + 1);
-                assert(label >= 0 && label < s->label_count);
-                ls = &label_slots[label];
-                assert(ls->addr == -1);
-                ls->addr = bc_out.size;
-                /* resolve the relocation entries */
-                for(re = ls->first_reloc; re != NULL; re = re_next) {
-                    int diff = ls->addr - re->addr;
-                    re_next = re->next;
-                    switch (re->size) {
-                    case 4:
-                        put_u32(bc_out.buf + re->addr, diff);
-                        break;
-                    case 2:
-                        assert(diff == (int16_t)diff);
-                        put_u16(bc_out.buf + re->addr, diff);
-                        break;
-                    case 1:
-                        assert(diff == (int8_t)diff);
-                        put_u8(bc_out.buf + re->addr, diff);
-                        break;
-                    }
-                    js_free(ctx, re);
-                }
-                ls->first_reloc = NULL;
-            }
-            break;
-
-        case OP_call:
-        case OP_call_method:
-            {
-                /* detect and transform tail calls */
-                int argc;
-                argc = get_u16(bc_buf + pos + 1);
-                if (code_match(&cc, pos_next, OP_return, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    put_short_code(&bc_out, op + 1, argc);
-                    pos_next = skip_dead_code(s, bc_buf, bc_len, cc.pos, &line_num);
-                    break;
-                }
-                add_pc2line_info(s, bc_out.size, line_num);
-                put_short_code(&bc_out, op, argc);
-                break;
-            }
-            goto no_change;
-
-        case OP_return:
-        case OP_return_undef:
-        case OP_return_async:
-        case OP_throw:
-        case OP_throw_var:
-            pos_next = skip_dead_code(s, bc_buf, bc_len, pos_next, &line_num);
-            goto no_change;
-
-        case OP_goto:
-            label = get_u32(bc_buf + pos + 1);
-        has_goto:
-            if (OPTIMIZE) {
-                int line1 = -1;
-                /* Use custom matcher because multiple labels can follow */
-                label = find_jump_target(s, label, &op1, &line1);
-                if (code_has_label(&cc, pos_next, label)) {
-                    /* jump to next instruction: remove jump */
-                    update_label(s, label, -1);
-                    break;
-                }
-                if (op1 == OP_return || op1 == OP_return_undef || op1 == OP_throw) {
-                    /* jump to return/throw: remove jump, append return/throw */
-                    /* updating the line number obfuscates assembly listing */
-                    //if (line1 >= 0) line_num = line1;
-                    update_label(s, label, -1);
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, op1);
-                    pos_next = skip_dead_code(s, bc_buf, bc_len, pos_next, &line_num);
-                    break;
-                }
-                /* XXX: should duplicate single instructions followed by goto or return */
-                /* For example, can match one of these followed by return:
-                   push_i32 / push_const / push_atom_value / get_var /
-                   undefined / null / push_false / push_true / get_ref_value /
-                   get_loc / get_arg / get_var_ref
-                 */
-            }
-            goto has_label;
-
-        case OP_gosub:
-            label = get_u32(bc_buf + pos + 1);
-            if (0 && OPTIMIZE) {
-                label = find_jump_target(s, label, &op1, NULL);
-                if (op1 == OP_ret) {
-                    update_label(s, label, -1);
-                    /* empty finally clause: remove gosub */
-                    break;
-                }
-            }
-            goto has_label;
-
-        case OP_catch:
-            label = get_u32(bc_buf + pos + 1);
-            goto has_label;
-
-        case OP_if_true:
-        case OP_if_false:
-            label = get_u32(bc_buf + pos + 1);
-            if (OPTIMIZE) {
-                label = find_jump_target(s, label, &op1, NULL);
-                /* transform if_false/if_true(l1) label(l1) -> drop label(l1) */
-                if (code_has_label(&cc, pos_next, label)) {
-                    update_label(s, label, -1);
-                    dbuf_putc(&bc_out, OP_drop);
-                    break;
-                }
-                /* transform if_false(l1) goto(l2) label(l1) -> if_false(l2) label(l1) */
-                if (code_match(&cc, pos_next, OP_goto, -1)) {
-                    int pos1 = cc.pos;
-                    int line1 = cc.line_num;
-                    if (code_has_label(&cc, pos1, label)) {
-                        if (line1 >= 0) line_num = line1;
-                        pos_next = pos1;
-                        update_label(s, label, -1);
-                        label = cc.label;
-                        op ^= OP_if_true ^ OP_if_false;
-                    }
-                }
-            }
-        has_label:
-            add_pc2line_info(s, bc_out.size, line_num);
-            if (op == OP_goto) {
-                pos_next = skip_dead_code(s, bc_buf, bc_len, pos_next, &line_num);
-            }
-            assert(label >= 0 && label < s->label_count);
-            ls = &label_slots[label];
-#if SHORT_OPCODES
-            jp = &s->jump_slots[s->jump_count++];
-            jp->op = op;
-            jp->size = 4;
-            jp->pos = bc_out.size + 1;
-            jp->label = label;
-
-            if (ls->addr == -1) {
-                int diff = ls->pos2 - pos - 1;
-                if (diff < 128 && (op == OP_if_false || op == OP_if_true || op == OP_goto)) {
-                    jp->size = 1;
-                    jp->op = OP_if_false8 + (op - OP_if_false);
-                    dbuf_putc(&bc_out, OP_if_false8 + (op - OP_if_false));
-                    dbuf_putc(&bc_out, 0);
-                    if (!add_reloc(ctx, ls, bc_out.size - 1, 1))
-                        goto fail;
-                    break;
-                }
-                if (diff < 32768 && op == OP_goto) {
-                    jp->size = 2;
-                    jp->op = OP_goto16;
-                    dbuf_putc(&bc_out, OP_goto16);
-                    dbuf_put_u16(&bc_out, 0);
-                    if (!add_reloc(ctx, ls, bc_out.size - 2, 2))
-                        goto fail;
-                    break;
-                }
-            } else {
-                int diff = ls->addr - bc_out.size - 1;
-                if (diff == (int8_t)diff && (op == OP_if_false || op == OP_if_true || op == OP_goto)) {
-                    jp->size = 1;
-                    jp->op = OP_if_false8 + (op - OP_if_false);
-                    dbuf_putc(&bc_out, OP_if_false8 + (op - OP_if_false));
-                    dbuf_putc(&bc_out, diff);
-                    break;
-                }
-                if (diff == (int16_t)diff && op == OP_goto) {
-                    jp->size = 2;
-                    jp->op = OP_goto16;
-                    dbuf_putc(&bc_out, OP_goto16);
-                    dbuf_put_u16(&bc_out, diff);
-                    break;
-                }
-            }
-#endif
-            dbuf_putc(&bc_out, op);
-            dbuf_put_u32(&bc_out, ls->addr - bc_out.size);
-            if (ls->addr == -1) {
-                /* unresolved yet: create a new relocation entry */
-                if (!add_reloc(ctx, ls, bc_out.size - 4, 4))
-                    goto fail;
-            }
-            break;
-        case OP_with_get_var:
-        case OP_with_put_var:
-        case OP_with_delete_var:
-        case OP_with_make_ref:
-        case OP_with_get_ref:
-        case OP_with_get_ref_undef:
-            {
-                JSAtom atom;
-                int is_with;
-
-                atom = get_u32(bc_buf + pos + 1);
-                label = get_u32(bc_buf + pos + 5);
-                is_with = bc_buf[pos + 9];
-                if (OPTIMIZE) {
-                    label = find_jump_target(s, label, &op1, NULL);
-                }
-                assert(label >= 0 && label < s->label_count);
-                ls = &label_slots[label];
-                add_pc2line_info(s, bc_out.size, line_num);
-#if SHORT_OPCODES
-                jp = &s->jump_slots[s->jump_count++];
-                jp->op = op;
-                jp->size = 4;
-                jp->pos = bc_out.size + 5;
-                jp->label = label;
-#endif
-                dbuf_putc(&bc_out, op);
-                dbuf_put_u32(&bc_out, atom);
-                dbuf_put_u32(&bc_out, ls->addr - bc_out.size);
-                if (ls->addr == -1) {
-                    /* unresolved yet: create a new relocation entry */
-                    if (!add_reloc(ctx, ls, bc_out.size - 4, 4))
-                        goto fail;
-                }
-                dbuf_putc(&bc_out, is_with);
-            }
-            break;
-
-        case OP_drop:
-            if (OPTIMIZE) {
-                /* remove useless drops before return */
-                if (code_match(&cc, pos_next, OP_return_undef, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    break;
-                }
-            }
-            goto no_change;
-
-        case OP_null:
-#if SHORT_OPCODES
-            if (OPTIMIZE) {
-                /* transform null strict_eq into is_null */
-                if (code_match(&cc, pos_next, OP_strict_eq, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_is_null);
-                    pos_next = cc.pos;
-                    break;
-                }
-                /* transform null strict_neq if_false/if_true -> is_null if_true/if_false */
-                if (code_match(&cc, pos_next, OP_strict_neq, M2(OP_if_false, OP_if_true), -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_is_null);
-                    pos_next = cc.pos;
-                    label = cc.label;
-                    op = cc.op ^ OP_if_false ^ OP_if_true;
-                    goto has_label;
-                }
-            }
-#endif
-            /* fall thru */
-        case OP_push_false:
-        case OP_push_true:
-            if (OPTIMIZE) {
-                val = (op == OP_push_true);
-                if (code_match(&cc, pos_next, M2(OP_if_false, OP_if_true), -1)) {
-                has_constant_test:
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    if (val == cc.op - OP_if_false) {
-                        /* transform null if_false(l1) -> goto l1 */
-                        /* transform false if_false(l1) -> goto l1 */
-                        /* transform true if_true(l1) -> goto l1 */
-                        pos_next = cc.pos;
-                        op = OP_goto;
-                        label = cc.label;
-                        goto has_goto;
-                    } else {
-                        /* transform null if_true(l1) -> nop */
-                        /* transform false if_true(l1) -> nop */
-                        /* transform true if_false(l1) -> nop */
-                        pos_next = cc.pos;
-                        update_label(s, cc.label, -1);
-                        break;
-                    }
-                }
-            }
-            goto no_change;
-
-        case OP_push_i32:
-            if (OPTIMIZE) {
-                /* transform i32(val) neg -> i32(-val) */
-                val = get_i32(bc_buf + pos + 1);
-                if ((val != INT32_MIN && val != 0)
-                &&  code_match(&cc, pos_next, OP_neg, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    if (code_match(&cc, cc.pos, OP_drop, -1)) {
-                        if (cc.line_num >= 0) line_num = cc.line_num;
-                    } else {
-                        add_pc2line_info(s, bc_out.size, line_num);
-                        push_short_int(&bc_out, -val);
-                    }
-                    pos_next = cc.pos;
-                    break;
-                }
-                /* remove push/drop pairs generated by the parser */
-                if (code_match(&cc, pos_next, OP_drop, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    pos_next = cc.pos;
-                    break;
-                }
-                /* Optimize constant tests: `if (0)`, `if (1)`, `if (!0)`... */
-                if (code_match(&cc, pos_next, M2(OP_if_false, OP_if_true), -1)) {
-                    val = (val != 0);
-                    goto has_constant_test;
-                }
-                add_pc2line_info(s, bc_out.size, line_num);
-                push_short_int(&bc_out, val);
-                break;
-            }
-            goto no_change;
-
-#if SHORT_OPCODES
-        case OP_push_const:
-        case OP_fclosure:
-            if (OPTIMIZE) {
-                int idx = get_u32(bc_buf + pos + 1);
-                if (idx < 256) {
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_push_const8 + op - OP_push_const);
-                    dbuf_putc(&bc_out, idx);
-                    break;
-                }
-            }
-            goto no_change;
-
-        case OP_get_field:
-            if (OPTIMIZE) {
-                JSAtom atom = get_u32(bc_buf + pos + 1);
-                if (atom == JS_ATOM_length) {
-                    JS_FreeAtom(ctx, atom);
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_get_length);
-                    break;
-                }
-            }
-            goto no_change;
-#endif
-        case OP_push_atom_value:
-            if (OPTIMIZE) {
-                JSAtom atom = get_u32(bc_buf + pos + 1);
-                /* remove push/drop pairs generated by the parser */
-                if (code_match(&cc, pos_next, OP_drop, -1)) {
-                    JS_FreeAtom(ctx, atom);
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    pos_next = cc.pos;
-                    break;
-                }
-#if SHORT_OPCODES
-                if (atom == JS_ATOM_empty_string) {
-                    JS_FreeAtom(ctx, atom);
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_push_empty_string);
-                    break;
-                }
-#endif
-            }
-            goto no_change;
-
-        case OP_to_propkey:
-        case OP_to_propkey2:
-            if (OPTIMIZE) {
-                /* remove redundant to_propkey/to_propkey2 opcodes when storing simple data */
-                if (code_match(&cc, pos_next, M3(OP_get_loc, OP_get_arg, OP_get_var_ref), -1, OP_put_array_el, -1)
-                ||  code_match(&cc, pos_next, M3(OP_push_i32, OP_push_const, OP_push_atom_value), OP_put_array_el, -1)
-                ||  code_match(&cc, pos_next, M4(OP_undefined, OP_null, OP_push_true, OP_push_false), OP_put_array_el, -1)) {
-                    break;
-                }
-            }
-            goto no_change;
-
-        case OP_undefined:
-            if (OPTIMIZE) {
-                /* remove push/drop pairs generated by the parser */
-                if (code_match(&cc, pos_next, OP_drop, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    pos_next = cc.pos;
-                    break;
-                }
-                /* transform undefined return -> return_undefined */
-                if (code_match(&cc, pos_next, OP_return, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_return_undef);
-                    pos_next = cc.pos;
-                    break;
-                }
-                /* transform undefined if_true(l1)/if_false(l1) -> nop/goto(l1) */
-                if (code_match(&cc, pos_next, M2(OP_if_false, OP_if_true), -1)) {
-                    val = 0;
-                    goto has_constant_test;
-                }
-#if SHORT_OPCODES
-                /* transform undefined strict_eq -> is_undefined */
-                if (code_match(&cc, pos_next, OP_strict_eq, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_is_undefined);
-                    pos_next = cc.pos;
-                    break;
-                }
-                /* transform undefined strict_neq if_false/if_true -> is_undefined if_true/if_false */
-                if (code_match(&cc, pos_next, OP_strict_neq, M2(OP_if_false, OP_if_true), -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_is_undefined);
-                    pos_next = cc.pos;
-                    label = cc.label;
-                    op = cc.op ^ OP_if_false ^ OP_if_true;
-                    goto has_label;
-                }
-#endif
-            }
-            goto no_change;
-
-        case OP_insert2:
-            if (OPTIMIZE) {
-                /* Transformation:
-                   insert2 put_field(a) drop -> put_field(a)
-                   insert2 put_var_strict(a) drop -> put_var_strict(a)
-                */
-                if (code_match(&cc, pos_next, M2(OP_put_field, OP_put_var_strict), OP_drop, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, cc.op);
-                    dbuf_put_u32(&bc_out, cc.atom);
-                    pos_next = cc.pos;
-                    break;
-                }
-            }
-            goto no_change;
-
-        case OP_dup:
-            if (OPTIMIZE) {
-                /* Transformation: dup put_x(n) drop -> put_x(n) */
-                int op1, line2 = -1;
-                /* Transformation: dup put_x(n) -> set_x(n) */
-                if (code_match(&cc, pos_next, M3(OP_put_loc, OP_put_arg, OP_put_var_ref), -1, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    op1 = cc.op + 1;  /* put_x -> set_x */
-                    pos_next = cc.pos;
-                    if (code_match(&cc, cc.pos, OP_drop, -1)) {
-                        if (cc.line_num >= 0) line_num = cc.line_num;
-                        op1 -= 1; /* set_x drop -> put_x */
-                        pos_next = cc.pos;
-                        if (code_match(&cc, cc.pos, op1 - 1, cc.idx, -1)) {
-                            line2 = cc.line_num; /* delay line number update */
-                            op1 += 1;   /* put_x(n) get_x(n) -> set_x(n) */
-                            pos_next = cc.pos;
-                        }
-                    }
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    put_short_code(&bc_out, op1, cc.idx);
-                    if (line2 >= 0) line_num = line2;
-                    break;
-                }
-            }
-            goto no_change;
-
-        case OP_get_loc:
-            if (OPTIMIZE) {
-                /* transformation:
-                   get_loc(n) post_dec put_loc(n) drop -> dec_loc(n)
-                   get_loc(n) post_inc put_loc(n) drop -> inc_loc(n)
-                   get_loc(n) dec dup put_loc(n) drop -> dec_loc(n)
-                   get_loc(n) inc dup put_loc(n) drop -> inc_loc(n)
-                 */
-                int idx;
-                idx = get_u16(bc_buf + pos + 1);
-                if (idx >= 256)
-                    goto no_change;
-                if (code_match(&cc, pos_next, M2(OP_post_dec, OP_post_inc), OP_put_loc, idx, OP_drop, -1) ||
-                    code_match(&cc, pos_next, M2(OP_dec, OP_inc), OP_dup, OP_put_loc, idx, OP_drop, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, (cc.op == OP_inc || cc.op == OP_post_inc) ? OP_inc_loc : OP_dec_loc);
-                    dbuf_putc(&bc_out, idx);
-                    pos_next = cc.pos;
-                    break;
-                }
-                /* transformation:
-                   get_loc(n) push_atom_value(x) add dup put_loc(n) drop -> push_atom_value(x) add_loc(n)
-                 */
-                if (code_match(&cc, pos_next, OP_push_atom_value, OP_add, OP_dup, OP_put_loc, idx, OP_drop, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-#if SHORT_OPCODES
-                    if (cc.atom == JS_ATOM_empty_string) {
-                        JS_FreeAtom(ctx, cc.atom);
-                        dbuf_putc(&bc_out, OP_push_empty_string);
-                    } else
-#endif
-                    {
-                        dbuf_putc(&bc_out, OP_push_atom_value);
-                        dbuf_put_u32(&bc_out, cc.atom);
-                    }
-                    dbuf_putc(&bc_out, OP_add_loc);
-                    dbuf_putc(&bc_out, idx);
-                    pos_next = cc.pos;
-                    break;
-                }
-                /* transformation:
-                   get_loc(n) push_i32(x) add dup put_loc(n) drop -> push_i32(x) add_loc(n)
-                 */
-                if (code_match(&cc, pos_next, OP_push_i32, OP_add, OP_dup, OP_put_loc, idx, OP_drop, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    push_short_int(&bc_out, cc.label);
-                    dbuf_putc(&bc_out, OP_add_loc);
-                    dbuf_putc(&bc_out, idx);
-                    pos_next = cc.pos;
-                    break;
-                }
-                /* transformation: XXX: also do these:
-                   get_loc(n) get_loc(x) add dup put_loc(n) drop -> get_loc(x) add_loc(n)
-                   get_loc(n) get_arg(x) add dup put_loc(n) drop -> get_arg(x) add_loc(n)
-                   get_loc(n) get_var_ref(x) add dup put_loc(n) drop -> get_var_ref(x) add_loc(n)
-                 */
-                if (code_match(&cc, pos_next, M3(OP_get_loc, OP_get_arg, OP_get_var_ref), -1, OP_add, OP_dup, OP_put_loc, idx, OP_drop, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    put_short_code(&bc_out, cc.op, cc.idx);
-                    dbuf_putc(&bc_out, OP_add_loc);
-                    dbuf_putc(&bc_out, idx);
-                    pos_next = cc.pos;
-                    break;
-                }
-                add_pc2line_info(s, bc_out.size, line_num);
-                put_short_code(&bc_out, op, idx);
-                break;
-            }
-            goto no_change;
-#if SHORT_OPCODES
-        case OP_get_arg:
-        case OP_get_var_ref:
-            if (OPTIMIZE) {
-                int idx;
-                idx = get_u16(bc_buf + pos + 1);
-                add_pc2line_info(s, bc_out.size, line_num);
-                put_short_code(&bc_out, op, idx);
-                break;
-            }
-            goto no_change;
-#endif
-        case OP_put_loc:
-        case OP_put_arg:
-        case OP_put_var_ref:
-            if (OPTIMIZE) {
-                /* transformation: put_x(n) get_x(n) -> set_x(n) */
-                int idx;
-                idx = get_u16(bc_buf + pos + 1);
-                if (code_match(&cc, pos_next, op - 1, idx, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    put_short_code(&bc_out, op + 1, idx);
-                    pos_next = cc.pos;
-                    break;
-                }
-                add_pc2line_info(s, bc_out.size, line_num);
-                put_short_code(&bc_out, op, idx);
-                break;
-            }
-            goto no_change;
-
-        case OP_post_inc:
-        case OP_post_dec:
-            if (OPTIMIZE) {
-                /* transformation:
-                   post_inc put_x drop -> inc put_x
-                   post_inc perm3 put_field drop -> inc put_field
-                   post_inc perm3 put_var_strict drop -> inc put_var_strict
-                   post_inc perm4 put_array_el drop -> inc put_array_el
-                 */
-                int op1, idx;
-                if (code_match(&cc, pos_next, M3(OP_put_loc, OP_put_arg, OP_put_var_ref), -1, OP_drop, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    op1 = cc.op;
-                    idx = cc.idx;
-                    pos_next = cc.pos;
-                    if (code_match(&cc, cc.pos, op1 - 1, idx, -1)) {
-                        if (cc.line_num >= 0) line_num = cc.line_num;
-                        op1 += 1;   /* put_x(n) get_x(n) -> set_x(n) */
-                        pos_next = cc.pos;
-                    }
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_dec + (op - OP_post_dec));
-                    put_short_code(&bc_out, op1, idx);
-                    break;
-                }
-                if (code_match(&cc, pos_next, OP_perm3, M2(OP_put_field, OP_put_var_strict), OP_drop, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_dec + (op - OP_post_dec));
-                    dbuf_putc(&bc_out, cc.op);
-                    dbuf_put_u32(&bc_out, cc.atom);
-                    pos_next = cc.pos;
-                    break;
-                }
-                if (code_match(&cc, pos_next, OP_perm4, OP_put_array_el, OP_drop, -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    add_pc2line_info(s, bc_out.size, line_num);
-                    dbuf_putc(&bc_out, OP_dec + (op - OP_post_dec));
-                    dbuf_putc(&bc_out, OP_put_array_el);
-                    pos_next = cc.pos;
-                    break;
-                }
-            }
-            goto no_change;
-
-        case OP_typeof:
-            if (OPTIMIZE) {
-                /* simplify typeof tests */
-                if (code_match(&cc, pos_next, OP_push_atom_value, M4(OP_strict_eq, OP_strict_neq, OP_eq, OP_neq), -1)) {
-                    if (cc.line_num >= 0) line_num = cc.line_num;
-                    int op1 = (cc.op == OP_strict_eq || cc.op == OP_eq) ? OP_strict_eq : OP_strict_neq;
-#if SHORT_OPCODES
-                    int op2 = -1;
-                    switch (cc.atom) {
-                    case JS_ATOM_undefined:
-                        op2 = OP_is_undefined;
-                        break;
-                    case JS_ATOM_function:
-                        op2 = OP_is_function;
-                        break;
-                    }
-                    if (op2 >= 0) {
-                        /* transform typeof(s) == "<type>" into is_<type> */
-                        if (op1 == OP_strict_eq) {
-                            add_pc2line_info(s, bc_out.size, line_num);
-                            dbuf_putc(&bc_out, op2);
-                            JS_FreeAtom(ctx, cc.atom);
-                            pos_next = cc.pos;
-                            break;
-                        }
-                        if (op1 == OP_strict_neq && code_match(&cc, cc.pos, OP_if_false, -1)) {
-                            /* transform typeof(s) != "<type>" if_false into is_<type> if_true */
-                            if (cc.line_num >= 0) line_num = cc.line_num;
-                            add_pc2line_info(s, bc_out.size, line_num);
-                            dbuf_putc(&bc_out, op2);
-                            JS_FreeAtom(ctx, cc.atom);
-                            pos_next = cc.pos;
-                            label = cc.label;
-                            op = OP_if_true;
-                            goto has_label;
-                        }
-                    }
-#endif
-                    if (cc.atom == JS_ATOM_undefined) {
-                        /* transform typeof(s) == "undefined" into s === void 0 */
-                        add_pc2line_info(s, bc_out.size, line_num);
-                        dbuf_putc(&bc_out, OP_undefined);
-                        dbuf_putc(&bc_out, op1);
-                        JS_FreeAtom(ctx, cc.atom);
-                        pos_next = cc.pos;
-                        break;
-                    }
-                }
-            }
-            goto no_change;
-
-        default:
-        no_change:
-            add_pc2line_info(s, bc_out.size, line_num);
-            dbuf_put(&bc_out, bc_buf + pos, len);
-            break;
-        }
-    }
-
-    /* check that there were no missing labels */
-    for(i = 0; i < s->label_count; i++) {
-        assert(label_slots[i].first_reloc == NULL);
-    }
-#if SHORT_OPCODES
-    if (OPTIMIZE) {
-        /* more jump optimizations */
-        int patch_offsets = 0;
-        for (i = 0, jp = s->jump_slots; i < s->jump_count; i++, jp++) {
-            LabelSlot *ls;
-            JumpSlot *jp1;
-            int j, pos, diff, delta;
-
-            delta = 3;
-            switch (op = jp->op) {
-            case OP_goto16:
-                delta = 1;
-                /* fall thru */
-            case OP_if_false:
-            case OP_if_true:
-            case OP_goto:
-                pos = jp->pos;
-                diff = s->label_slots[jp->label].addr - pos;
-                if (diff >= -128 && diff <= 127 + delta) {
-                    //put_u8(bc_out.buf + pos, diff);
-                    jp->size = 1;
-                    if (op == OP_goto16) {
-                        bc_out.buf[pos - 1] = jp->op = OP_goto8;
-                    } else {
-                        bc_out.buf[pos - 1] = jp->op = OP_if_false8 + (op - OP_if_false);
-                    }
-                    goto shrink;
-                } else
-                if (diff == (int16_t)diff && op == OP_goto) {
-                    //put_u16(bc_out.buf + pos, diff);
-                    jp->size = 2;
-                    delta = 2;
-                    bc_out.buf[pos - 1] = jp->op = OP_goto16;
-                shrink:
-                    /* XXX: should reduce complexity, using 2 finger copy scheme */
-                    memmove(bc_out.buf + pos + jp->size, bc_out.buf + pos + jp->size + delta,
-                            bc_out.size - pos - jp->size - delta);
-                    bc_out.size -= delta;
-                    patch_offsets++;
-                    for (j = 0, ls = s->label_slots; j < s->label_count; j++, ls++) {
-                        if (ls->addr > pos)
-                            ls->addr -= delta;
-                    }
-                    for (j = i + 1, jp1 = jp + 1; j < s->jump_count; j++, jp1++) {
-                        if (jp1->pos > pos)
-                            jp1->pos -= delta;
-                    }
-                    for (j = 0; j < s->line_number_count; j++) {
-                        if (s->line_number_slots[j].pc > pos)
-                            s->line_number_slots[j].pc -= delta;
-                    }
-                    continue;
-                }
-                break;
-            }
-        }
-        if (patch_offsets) {
-            JumpSlot *jp1;
-            int j;
-            for (j = 0, jp1 = s->jump_slots; j < s->jump_count; j++, jp1++) {
-                int diff1 = s->label_slots[jp1->label].addr - jp1->pos;
-                switch (jp1->size) {
-                case 1:
-                    put_u8(bc_out.buf + jp1->pos, diff1);
-                    break;
-                case 2:
-                    put_u16(bc_out.buf + jp1->pos, diff1);
-                    break;
-                case 4:
-                    put_u32(bc_out.buf + jp1->pos, diff1);
-                    break;
-                }
-            }
-        }
-    }
-    js_free(ctx, s->jump_slots);
-    s->jump_slots = NULL;
-#endif
-    js_free(ctx, s->label_slots);
-    s->label_slots = NULL;
-    /* XXX: should delay until copying to runtime bytecode function */
-    compute_pc2line_info(s);
-    js_free(ctx, s->line_number_slots);
-    s->line_number_slots = NULL;
-    /* set the new byte code */
-    dbuf_free(&s->byte_code);
-    s->byte_code = bc_out;
-    s->use_short_opcodes = TRUE;
-    if (dbuf_error(&s->byte_code)) {
-        JS_ThrowOutOfMemory(ctx);
-        return -1;
-    }
-    return 0;
- fail:
-    /* XXX: not safe */
-    dbuf_free(&bc_out);
-    return -1;
-}
-
-/* compute the maximum stack size needed by the function */
-
-typedef struct StackSizeState {
-    int stack_len_max;
-    uint16_t *stack_level_tab;
-} StackSizeState;
-
-static __exception int compute_stack_size_rec(JSContext *ctx,
-                                              JSFunctionDef *fd,
-                                              StackSizeState *s,
-                                              int pos, int op, int stack_len)
-{
-    int bc_len, diff, n_pop, pos_next;
-    const JSOpCode *oi;
-    const uint8_t *bc_buf;
-
-    if (stack_len > s->stack_len_max) {
-        s->stack_len_max = stack_len;
-        if (s->stack_len_max > JS_STACK_SIZE_MAX)
-            goto stack_overflow;
-    }
-    bc_buf = fd->byte_code.buf;
-    bc_len = fd->byte_code.size;
-    for(;;) {
-        if ((unsigned)pos >= bc_len)
-            goto buf_overflow;
-#if 0
-        printf("%5d: %d\n", pos, stack_len);
-#endif
-        if (s->stack_level_tab[pos] != 0xffff) {
-            /* already explored: check that the stack size is consistent */
-            if (s->stack_level_tab[pos] != stack_len) {
-                JS_ThrowInternalError(ctx, "unconsistent stack size: %d %d (pc=%d)",
-                                      s->stack_level_tab[pos], stack_len, pos);
-                return -1;
-            } else {
-                return 0;
-            }
-        } else {
-            s->stack_level_tab[pos] = stack_len;
-        }
-
-        op = bc_buf[pos];
-        if (op == 0 || op >= OP_COUNT) {
-            JS_ThrowInternalError(ctx, "invalid opcode (op=%d, pc=%d)", op, pos);
-            return -1;
-        }
-        oi = &short_opcode_info(op);
-        pos_next = pos + oi->size;
-        if (pos_next > bc_len) {
-        buf_overflow:
-            JS_ThrowInternalError(ctx, "bytecode buffer overflow (op=%d, pc=%d)", op, pos);
-            return -1;
-        }
-        n_pop = oi->n_pop;
-        /* call pops a variable number of arguments */
-        if (oi->fmt == OP_FMT_npop) {
-            n_pop += get_u16(bc_buf + pos + 1);
-        } else {
-#if SHORT_OPCODES
-            if (oi->fmt == OP_FMT_npopx) {
-                n_pop += op - OP_call0;
-            }
-#endif
-        }
-
-        if (stack_len < n_pop) {
-            JS_ThrowInternalError(ctx, "stack underflow (op=%d, pc=%d)", op, pos);
-            return -1;
-        }
-        stack_len += oi->n_push - n_pop;
-        if (stack_len > s->stack_len_max) {
-            s->stack_len_max = stack_len;
-            if (s->stack_len_max > JS_STACK_SIZE_MAX)
-                goto stack_overflow;
-        }
-        switch(op) {
-        case OP_tail_call:
-        case OP_tail_call_method:
-        case OP_return:
-        case OP_return_undef:
-        case OP_return_async:
-        case OP_throw:
-        case OP_throw_var:
-        case OP_ret:
-            goto done;
-        case OP_goto:
-            diff = get_u32(bc_buf + pos + 1);
-            pos_next = pos + 1 + diff;
-            break;
-#if SHORT_OPCODES
-        case OP_goto16:
-            diff = (int16_t)get_u16(bc_buf + pos + 1);
-            pos_next = pos + 1 + diff;
-            break;
-        case OP_goto8:
-            diff = (int8_t)bc_buf[pos + 1];
-            pos_next = pos + 1 + diff;
-            break;
-        case OP_if_true8:
-        case OP_if_false8:
-            diff = (int8_t)bc_buf[pos + 1];
-            if (compute_stack_size_rec(ctx, fd, s, pos + 1 + diff, op, stack_len))
-                return -1;
-            break;
-#endif
-        case OP_if_true:
-        case OP_if_false:
-        case OP_catch:
-            diff = get_u32(bc_buf + pos + 1);
-            if (compute_stack_size_rec(ctx, fd, s, pos + 1 + diff, op, stack_len))
-                return -1;
-            break;
-        case OP_gosub:
-            diff = get_u32(bc_buf + pos + 1);
-            if (compute_stack_size_rec(ctx, fd, s, pos + 1 + diff, op, stack_len + 1))
-                return -1;
-            break;
-        case OP_with_get_var:
-        case OP_with_delete_var:
-            diff = get_u32(bc_buf + pos + 5);
-            if (compute_stack_size_rec(ctx, fd, s, pos + 5 + diff, op, stack_len + 1))
-                return -1;
-            break;
-        case OP_with_make_ref:
-        case OP_with_get_ref:
-        case OP_with_get_ref_undef:
-            diff = get_u32(bc_buf + pos + 5);
-            if (compute_stack_size_rec(ctx, fd, s, pos + 5 + diff, op, stack_len + 2))
-                return -1;
-            break;
-        case OP_with_put_var:
-            diff = get_u32(bc_buf + pos + 5);
-            if (compute_stack_size_rec(ctx, fd, s, pos + 5 + diff, op, stack_len - 1))
-                return -1;
-            break;
-
-        default:
-            break;
-        }
-        pos = pos_next;
-    }
- done:
-    return 0;
-
- stack_overflow:
-    JS_ThrowInternalError(ctx, "stack overflow (op=%d, pc=%d)", op, pos);
-    return -1;
-}
-
-static __exception int compute_stack_size(JSContext *ctx,
-                                          JSFunctionDef *fd,
-                                          int *pstack_size)
-{
-    StackSizeState s_s, *s = &s_s;
-    int bc_len, i, ret;
-
-    bc_len = fd->byte_code.size;
-    /* bc_len > 0 */
-    s->stack_level_tab = js_malloc(ctx, sizeof(s->stack_level_tab[0]) * bc_len);
-    if (!s->stack_level_tab)
-        return -1;
-    for(i = 0; i < bc_len; i++)
-        s->stack_level_tab[i] = 0xffff;
-    s->stack_len_max = 0;
-    ret = compute_stack_size_rec(ctx, fd, s, 0, OP_invalid, 0);
-    js_free(ctx, s->stack_level_tab);
-    *pstack_size = s->stack_len_max;
-    return ret;
-}
-
-static int add_module_variables(JSContext *ctx, JSFunctionDef *fd)
-{
-    int i, idx;
-    JSModuleDef *m = fd->module;
-    JSExportEntry *me;
-    JSHoistedDef *hf;
-
-    /* The imported global variables were added as closure variables
-       in js_parse_import(). We add here the module global
-       variables. */
-
-    for(i = 0; i < fd->hoisted_def_count; i++) {
-        hf = &fd->hoisted_def[i];
-        if (add_closure_var(ctx, fd, TRUE, FALSE, i, hf->var_name, hf->is_const,
-                            hf->is_lexical, FALSE) < 0)
-            return -1;
-    }
-
-    /* resolve the variable names of the local exports */
-    for(i = 0; i < m->export_entries_count; i++) {
-        me = &m->export_entries[i];
-        if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
-            idx = find_closure_var(ctx, fd, me->local_name);
-            if (idx < 0) {
-                char buf1[ATOM_GET_STR_BUF_SIZE];
-                JS_ThrowSyntaxError(ctx, "exported variable '%s' does not exist",
-                                    JS_AtomGetStr(ctx, buf1, sizeof(buf1), me->local_name));
-                return -1;
-            }
-            me->u.local.var_idx = idx;
-        }
-    }
-    return 0;
-}
-
-/* create a function object from a function definition. The function
-   definition is freed. All the child functions are also created. It
-   must be done this way to resolve all the variables. */
-static JSValue js_create_function(JSContext *ctx, JSFunctionDef *fd)
-{
-    JSValue func_obj;
-    JSFunctionBytecode *b;
-    struct list_head *el, *el1;
-    int stack_size, scope, idx;
-    int function_size, byte_code_offset, cpool_offset;
-    int closure_var_offset, vardefs_offset;
-
-    /* recompute scope linkage */
-    for (scope = 0; scope < fd->scope_count; scope++) {
-        fd->scopes[scope].first = -1;
-    }
-    for (idx = 0; idx < fd->var_count; idx++) {
-        JSVarDef *vd = &fd->vars[idx];
-        vd->scope_next = fd->scopes[vd->scope_level].first;
-        fd->scopes[vd->scope_level].first = idx;
-    }
-    for (scope = 2; scope < fd->scope_count; scope++) {
-        JSVarScope *sd = &fd->scopes[scope];
-        if (sd->first == -1)
-            sd->first = fd->scopes[sd->parent].first;
-    }
-    for (idx = 0; idx < fd->var_count; idx++) {
-        JSVarDef *vd = &fd->vars[idx];
-        if (vd->scope_next == -1 && vd->scope_level > 1) {
-            scope = fd->scopes[vd->scope_level].parent;
-            vd->scope_next = fd->scopes[scope].first;
-        }
-    }
-
-    /* if the function contains an eval call, the closure variables
-       are used to compile the eval and they must be ordered by scope,
-       so it is necessary to create the closure variables before any
-       other variable lookup is done. */
-    if (fd->has_eval_call)
-        add_eval_variables(ctx, fd);
-
-    /* add the module global variables in the closure */
-    if (fd->module) {
-        if (add_module_variables(ctx, fd))
-            goto fail;
-    }
-
-    /* first create all the child functions */
-    list_for_each_safe(el, el1, &fd->child_list) {
-        JSFunctionDef *fd1;
-        int cpool_idx;
-
-        fd1 = list_entry(el, JSFunctionDef, link);
-        cpool_idx = fd1->parent_cpool_idx;
-        func_obj = js_create_function(ctx, fd1);
-        if (JS_IsException(func_obj))
-            goto fail;
-        /* save it in the constant pool */
-        assert(cpool_idx >= 0);
-        fd->cpool[cpool_idx] = func_obj;
-    }
-
-#if defined(DUMP_BYTECODE) && (DUMP_BYTECODE & 4)
-    if (!(fd->js_mode & JS_MODE_STRIP)) {
-        printf("pass 1\n");
-        dump_byte_code(ctx, 1, fd->byte_code.buf, fd->byte_code.size,
-                       fd->args, fd->arg_count, fd->vars, fd->var_count,
-                       fd->closure_var, fd->closure_var_count,
-                       fd->cpool, fd->cpool_count, fd->source, fd->line_num,
-                       fd->label_slots, NULL);
-        printf("\n");
-    }
-#endif
-
-    if (resolve_variables(ctx, fd))
-        goto fail;
-
-#if defined(DUMP_BYTECODE) && (DUMP_BYTECODE & 2)
-    if (!(fd->js_mode & JS_MODE_STRIP)) {
-        printf("pass 2\n");
-        dump_byte_code(ctx, 2, fd->byte_code.buf, fd->byte_code.size,
-                       fd->args, fd->arg_count, fd->vars, fd->var_count,
-                       fd->closure_var, fd->closure_var_count,
-                       fd->cpool, fd->cpool_count, fd->source, fd->line_num,
-                       fd->label_slots, NULL);
-        printf("\n");
-    }
-#endif
-
-    if (resolve_labels(ctx, fd))
-        goto fail;
-
-    if (compute_stack_size(ctx, fd, &stack_size) < 0)
-        goto fail;
-
-    if (fd->js_mode & JS_MODE_STRIP) {
-        function_size = offsetof(JSFunctionBytecode, debug);
-    } else {
-        function_size = sizeof(*b);
-    }
-    cpool_offset = function_size;
-    function_size += fd->cpool_count * sizeof(*fd->cpool);
-    vardefs_offset = function_size;
-    if (!(fd->js_mode & JS_MODE_STRIP) || fd->has_eval_call) {
-        function_size += (fd->arg_count + fd->var_count) * sizeof(*b->vardefs);
-    }
-    closure_var_offset = function_size;
-    function_size += fd->closure_var_count * sizeof(*fd->closure_var);
-    byte_code_offset = function_size;
-    function_size += fd->byte_code.size;
-
-    b = js_mallocz(ctx, function_size);
-    if (!b)
-        goto fail;
-    b->header.ref_count = 1;
-    b->gc_header.mark = 0;
-
-    b->byte_code_buf = (void *)((uint8_t*)b + byte_code_offset);
-    b->byte_code_len = fd->byte_code.size;
-    memcpy(b->byte_code_buf, fd->byte_code.buf, fd->byte_code.size);
-    js_free(ctx, fd->byte_code.buf);
-    fd->byte_code.buf = NULL;
-
-    b->func_name = fd->func_name;
-    if (fd->arg_count + fd->var_count > 0) {
-        if ((fd->js_mode & JS_MODE_STRIP) && !fd->has_eval_call) {
-            /* Strip variable definitions not needed at runtime */
-            int i;
-            for(i = 0; i < fd->var_count; i++) {
-                JS_FreeAtom(ctx, fd->vars[i].var_name);
-            }
-            for(i = 0; i < fd->arg_count; i++) {
-                JS_FreeAtom(ctx, fd->args[i].var_name);
-            }
-            for(i = 0; i < fd->closure_var_count; i++) {
-                JS_FreeAtom(ctx, fd->closure_var[i].var_name);
-                fd->closure_var[i].var_name = JS_ATOM_NULL;
-            }
-        } else {
-            b->vardefs = (void *)((uint8_t*)b + vardefs_offset);
-            memcpy(b->vardefs, fd->args, fd->arg_count * sizeof(fd->args[0]));
-            memcpy(b->vardefs + fd->arg_count, fd->vars, fd->var_count * sizeof(fd->vars[0]));
-        }
-        b->var_count = fd->var_count;
-        b->arg_count = fd->arg_count;
-        b->defined_arg_count = fd->defined_arg_count;
-        js_free(ctx, fd->args);
-        js_free(ctx, fd->vars);
-    }
-    b->cpool_count = fd->cpool_count;
-    if (b->cpool_count) {
-        b->cpool = (void *)((uint8_t*)b + cpool_offset);
-        memcpy(b->cpool, fd->cpool, b->cpool_count * sizeof(*b->cpool));
-    }
-    js_free(ctx, fd->cpool);
-    fd->cpool = NULL;
-
-    b->stack_size = stack_size;
-
-    if (fd->js_mode & JS_MODE_STRIP) {
-        JS_FreeAtom(ctx, fd->filename);
-        dbuf_free(&fd->pc2line);    // probably useless
-    } else {
-        /* XXX: source and pc2line info should be packed at the end of the
-           JSFunctionBytecode structure, avoiding allocation overhead
-         */
-        b->has_debug = 1;
-        b->debug.filename = fd->filename;
-        b->debug.line_num = fd->line_num;
-
-        //DynBuf pc2line;
-        //compute_pc2line_info(fd, &pc2line);
-        //js_free(ctx, fd->line_number_slots)
-        b->debug.pc2line_buf = js_realloc(ctx, fd->pc2line.buf, fd->pc2line.size);
-        if (!b->debug.pc2line_buf)
-            b->debug.pc2line_buf = fd->pc2line.buf;
-        b->debug.pc2line_len = fd->pc2line.size;
-        b->debug.source = fd->source;
-        b->debug.source_len = fd->source_len;
-    }
-    if (fd->scopes != fd->def_scope_array)
-        js_free(ctx, fd->scopes);
-
-    b->closure_var_count = fd->closure_var_count;
-    if (b->closure_var_count) {
-        b->closure_var = (void *)((uint8_t*)b + closure_var_offset);
-        memcpy(b->closure_var, fd->closure_var, b->closure_var_count * sizeof(*b->closure_var));
-    }
-    js_free(ctx, fd->closure_var);
-    fd->closure_var = NULL;
-
-    b->has_prototype = fd->has_prototype;
-    b->has_simple_parameter_list = fd->has_simple_parameter_list;
-    b->js_mode = fd->js_mode;
-    b->is_derived_class_constructor = fd->is_derived_class_constructor;
-    b->func_kind = fd->func_kind;
-    b->need_home_object = (fd->home_object_var_idx >= 0 ||
-                           fd->need_home_object);
-    b->new_target_allowed = fd->new_target_allowed;
-    b->super_call_allowed = fd->super_call_allowed;
-    b->super_allowed = fd->super_allowed;
-    b->arguments_allowed = fd->arguments_allowed;
-
-#if defined(DUMP_BYTECODE) && (DUMP_BYTECODE & 1)
-    if (!(fd->js_mode & JS_MODE_STRIP)) {
-        js_dump_function_bytecode(ctx, b);
-    }
-#endif
-
-    if (fd->parent) {
-        /* remove from parent list */
-        list_del(&fd->link);
-    }
-
-    js_free(ctx, fd);
-    return JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b);
- fail:
-    js_free_function_def(ctx, fd);
-    return JS_EXCEPTION;
-}
-
-static void free_function_bytecode(JSRuntime *rt, JSFunctionBytecode *b)
-{
-    int i;
-
-#if 0
-    {
-        char buf[ATOM_GET_STR_BUF_SIZE];
-        printf("freeing %s\n",
-               JS_AtomGetStrRT(rt, buf, sizeof(buf), b->func_name));
-    }
-#endif
-    free_bytecode_atoms(rt, b->byte_code_buf, b->byte_code_len, TRUE);
-
-    if (b->vardefs) {
-        for(i = 0; i < b->arg_count + b->var_count; i++) {
-            JS_FreeAtomRT(rt, b->vardefs[i].var_name);
-        }
-    }
-    for(i = 0; i < b->cpool_count; i++)
-        JS_FreeValueRT(rt, b->cpool[i]);
-
-    for(i = 0; i < b->closure_var_count; i++) {
-        JSClosureVar *cv = &b->closure_var[i];
-        JS_FreeAtomRT(rt, cv->var_name);
-    }
-
-    JS_FreeAtomRT(rt, b->func_name);
-    if (b->has_debug) {
-        JS_FreeAtomRT(rt, b->debug.filename);
-        js_free_rt(rt, b->debug.pc2line_buf);
-        js_free_rt(rt, b->debug.source);
-    }
-    js_free_rt(rt, b);
-}
-
-static __exception int js_parse_directives(JSParseState *s)
-{
-    char str[20];
-    JSParsePos pos;
-    BOOL has_semi;
-
-    if (s->token.val != TOK_STRING)
-        return 0;
-
-    js_parse_get_pos(s, &pos);
-
-    while(s->token.val == TOK_STRING) {
-        /* Copy actual source string representation */
-        snprintf(str, sizeof str, "%.*s",
-                 (int)(s->buf_ptr - s->token.ptr - 2), s->token.ptr + 1);
-
-        if (next_token(s))
-            return -1;
-
-        has_semi = FALSE;
-        switch (s->token.val) {
-        case ';':
-            if (next_token(s))
-                return -1;
-            has_semi = TRUE;
-            break;
-        case '}':
-        case TOK_EOF:
-            has_semi = TRUE;
-            break;
-        case TOK_NUMBER:
-        case TOK_STRING:
-        case TOK_TEMPLATE:
-        case TOK_IDENT:
-        case TOK_REGEXP:
-        case TOK_DEC:
-        case TOK_INC:
-        case TOK_NULL:
-        case TOK_FALSE:
-        case TOK_TRUE:
-        case TOK_IF:
-        case TOK_RETURN:
-        case TOK_VAR:
-        case TOK_THIS:
-        case TOK_DELETE:
-        case TOK_TYPEOF:
-        case TOK_NEW:
-        case TOK_DO:
-        case TOK_WHILE:
-        case TOK_FOR:
-        case TOK_SWITCH:
-        case TOK_THROW:
-        case TOK_TRY:
-        case TOK_FUNCTION:
-        case TOK_DEBUGGER:
-        case TOK_WITH:
-        case TOK_CLASS:
-        case TOK_CONST:
-        case TOK_ENUM:
-        case TOK_EXPORT:
-        case TOK_IMPORT:
-        case TOK_SUPER:
-        case TOK_INTERFACE:
-        case TOK_LET:
-        case TOK_PACKAGE:
-        case TOK_PRIVATE:
-        case TOK_PROTECTED:
-        case TOK_PUBLIC:
-        case TOK_STATIC:
-            /* automatic insertion of ';' */
-            if (s->got_lf)
-                has_semi = TRUE;
-            break;
-        default:
-            break;
-        }
-        if (!has_semi)
-            break;
-        if (!strcmp(str, "use strict")) {
-            s->cur_func->has_use_strict = TRUE;
-            s->cur_func->js_mode |= JS_MODE_STRICT;
-        }
-#if !defined(DUMP_BYTECODE) || !(DUMP_BYTECODE & 8)
-        else if (!strcmp(str, "use strip")) {
-            s->cur_func->js_mode |= JS_MODE_STRIP;
-        }
-#endif
-#ifdef CONFIG_BIGNUM
-        else if (!strcmp(str, "use bigint")) {
-            s->cur_func->js_mode |= JS_MODE_BIGINT;
-        }
-        else if (!strcmp(str, "use math")) {
-            s->cur_func->js_mode |= JS_MODE_BIGINT | JS_MODE_MATH;
-        }
-#endif
-    }
-    return js_parse_seek_token(s, &pos);
-}
-
-static int js_parse_function_check_names(JSParseState *s, JSFunctionDef *fd,
-                                         JSAtom func_name)
-{
-    JSAtom name;
-    int i, idx;
-
-    if (fd->js_mode & JS_MODE_STRICT) {
-        if (!fd->has_simple_parameter_list && fd->has_use_strict) {
-            return js_parse_error(s, "\"use strict\" not allowed in function with default or destructuring parameter");
-        }
-        if (func_name == JS_ATOM_eval || func_name == JS_ATOM_arguments) {
-            return js_parse_error(s, "invalid function name in strict code");
-        }
-        for (idx = 0; idx < fd->arg_count; idx++) {
-            name = fd->args[idx].var_name;
-
-            if (name == JS_ATOM_eval || name == JS_ATOM_arguments) {
-                return js_parse_error(s, "invalid argument name in strict code");
-            }
-        }
-    }
-    /* check async_generator case */
-    if ((fd->js_mode & JS_MODE_STRICT)
-    ||  !fd->has_simple_parameter_list
-    ||  (fd->func_type == JS_PARSE_FUNC_METHOD && fd->func_kind == JS_FUNC_ASYNC)
-    ||  fd->func_type == JS_PARSE_FUNC_ARROW
-    ||  fd->func_type == JS_PARSE_FUNC_METHOD) {
-        for (idx = 0; idx < fd->arg_count; idx++) {
-            name = fd->args[idx].var_name;
-            if (name != JS_ATOM_NULL) {
-                for (i = 0; i < idx; i++) {
-                    if (fd->args[i].var_name == name)
-                        goto duplicate;
-                }
-                /* Check if argument name duplicates a destructuring parameter */
-                /* XXX: should have a flag for such variables */
-                for (i = 0; i < fd->var_count; i++) {
-                    if (fd->vars[i].var_name == name)
-                        goto duplicate;
-                }
-            }
-        }
-    }
-    return 0;
-
-duplicate:
-    return js_parse_error(s, "duplicate argument names not allowed in this context");
-}
-
-/* create a function to initialize class fields */
-static JSFunctionDef *js_parse_function_class_fields_init(JSParseState *s)
-{
-    JSFunctionDef *fd;
-    
-    fd = js_new_function_def(s->ctx, s->cur_func, FALSE, FALSE,
-                             s->filename, 0);
-    if (!fd)
-        return NULL;
-    fd->func_name = JS_ATOM_NULL;
-    fd->has_prototype = FALSE;
-    fd->has_home_object = TRUE;
-    
-    fd->has_arguments_binding = FALSE;
-    fd->has_this_binding = TRUE;
-    fd->is_derived_class_constructor = FALSE;
-    fd->new_target_allowed = TRUE;
-    fd->super_call_allowed = FALSE;
-    fd->super_allowed = fd->has_home_object;
-    fd->arguments_allowed = FALSE;
-    
-    fd->func_kind = JS_FUNC_NORMAL;
-    fd->func_type = JS_PARSE_FUNC_METHOD;
-    return fd;
-}
-
-/* func_name must be JS_ATOM_NULL for JS_PARSE_FUNC_STATEMENT and
-   JS_PARSE_FUNC_EXPR, JS_PARSE_FUNC_ARROW and JS_PARSE_FUNC_VAR */
-static __exception int js_parse_function_decl2(JSParseState *s,
-                                               JSParseFunctionEnum func_type,
-                                               JSFunctionKindEnum func_kind,
-                                               JSAtom func_name,
-                                               const uint8_t *ptr,
-                                               int function_line_num,
-                                               JSParseExportEnum export_flag,
-                                               JSFunctionDef **pfd)
-{
-    JSContext *ctx = s->ctx;
-    JSFunctionDef *fd = s->cur_func;
-    BOOL is_expr;
-    int func_idx, lexical_func_idx = -1;
-    BOOL has_opt_arg;
-    BOOL create_func_var = FALSE;
-
-    is_expr = (func_type != JS_PARSE_FUNC_STATEMENT &&
-               func_type != JS_PARSE_FUNC_VAR);
-
-    if (func_type == JS_PARSE_FUNC_STATEMENT ||
-        func_type == JS_PARSE_FUNC_VAR ||
-        func_type == JS_PARSE_FUNC_EXPR) {
-        if (func_kind == JS_FUNC_NORMAL &&
-            token_is_pseudo_keyword(s, JS_ATOM_async) &&
-            peek_token(s, TRUE) != '\n') {
-            if (next_token(s))
-                return -1;
-            func_kind = JS_FUNC_ASYNC;
-        }
-        if (next_token(s))
-            return -1;
-        if (s->token.val == '*') {
-            if (next_token(s))
-                return -1;
-            func_kind |= JS_FUNC_GENERATOR;
-        }
-
-        if (s->token.val == TOK_IDENT) {
-            if (s->token.u.ident.is_reserved ||
-                (s->token.u.ident.atom == JS_ATOM_yield &&
-                 func_type == JS_PARSE_FUNC_EXPR &&
-                 (func_kind & JS_FUNC_GENERATOR)) ||
-                (s->token.u.ident.atom == JS_ATOM_await &&
-                 func_type == JS_PARSE_FUNC_EXPR &&
-                 (func_kind & JS_FUNC_ASYNC))) {
-                return js_parse_error_reserved_identifier(s);
-            }
-        }
-        if (s->token.val == TOK_IDENT ||
-            (((s->token.val == TOK_YIELD && !(fd->js_mode & JS_MODE_STRICT)) ||
-             (s->token.val == TOK_AWAIT && !s->is_module)) &&
-             func_type == JS_PARSE_FUNC_EXPR)) {
-            func_name = JS_DupAtom(ctx, s->token.u.ident.atom);
-            if (next_token(s)) {
-                JS_FreeAtom(ctx, func_name);
-                return -1;
-            }
-        } else {
-            if (func_type != JS_PARSE_FUNC_EXPR &&
-                export_flag != JS_PARSE_EXPORT_DEFAULT) {
-                return js_parse_error(s, "function name expected");
-            }
-        }
-    } else if (func_type != JS_PARSE_FUNC_ARROW) {
-        func_name = JS_DupAtom(ctx, func_name);
-    }
-
-    if (fd->is_eval && fd->eval_type == JS_EVAL_TYPE_MODULE &&
-        (func_type == JS_PARSE_FUNC_STATEMENT || func_type == JS_PARSE_FUNC_VAR)) {
-        JSHoistedDef *hf;
-        hf = find_hoisted_def(fd, func_name);
-        /* XXX: should check scope chain */
-        if (hf && hf->scope_level == fd->scope_level) {
-            js_parse_error(s, "invalid redefinition of global identifier in module code");
-            JS_FreeAtom(ctx, func_name);
-            return -1;
-        }
-    }
-
-    if (func_type == JS_PARSE_FUNC_VAR) {
-        /* Create lexical name here so function closure contains it */
-        if (!(fd->js_mode & JS_MODE_STRICT)
-        &&  find_lexical_decl(ctx, fd, func_name, fd->scope_first, FALSE) < 0
-        &&  !((func_idx = find_var(ctx, fd, func_name)) >= 0 && (func_idx & ARGUMENT_VAR_OFFSET))
-        &&  !(func_name == JS_ATOM_arguments && fd->has_arguments_binding)) {
-            create_func_var = TRUE;
-        }
-        if (fd->is_eval &&
-            (fd->eval_type == JS_EVAL_TYPE_GLOBAL ||
-             fd->eval_type == JS_EVAL_TYPE_MODULE) &&
-            fd->scope_level == 1) {
-            /* avoid creating a lexical variable in the global
-               scope. XXX: check annex B */
-            JSHoistedDef *hf;
-            hf = find_hoisted_def(fd, func_name);
-            /* XXX: should check scope chain */
-            if (hf && hf->scope_level == fd->scope_level) {
-                js_parse_error(s, "invalid redefinition of global identifier");
-                JS_FreeAtom(ctx, func_name);
-                return -1;
-            }
-        } else {
-            /* Always create a lexical name, fail if at the same scope as
-               existing name */
-            /* Lexical variable will be initialized upon entering scope */
-            lexical_func_idx = define_var(s, fd, func_name, TOK_FUNCTION);
-            if (lexical_func_idx < 0) {
-                JS_FreeAtom(ctx, func_name);
-                return -1;
-            }
-        }
-    }
-
-    fd = js_new_function_def(ctx, fd, FALSE, is_expr,
-                             s->filename, function_line_num);
-    if (!fd) {
-        JS_FreeAtom(ctx, func_name);
-        return -1;
-    }
-    if (pfd)
-        *pfd = fd;
-    s->cur_func = fd;
-    fd->func_name = func_name;
-    /* XXX: test !fd->is_generator is always false */
-    fd->has_prototype = (func_type == JS_PARSE_FUNC_STATEMENT ||
-                         func_type == JS_PARSE_FUNC_VAR ||
-                         func_type == JS_PARSE_FUNC_EXPR) &&
-                        func_kind == JS_FUNC_NORMAL;
-    fd->has_home_object = (func_type == JS_PARSE_FUNC_METHOD ||
-                           func_type == JS_PARSE_FUNC_GETTER ||
-                           func_type == JS_PARSE_FUNC_SETTER ||
-                           func_type == JS_PARSE_FUNC_CLASS_CONSTRUCTOR ||
-                           func_type == JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR);
-    fd->has_arguments_binding = (func_type != JS_PARSE_FUNC_ARROW);
-    fd->has_this_binding = fd->has_arguments_binding;
-    fd->is_derived_class_constructor = (func_type == JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR);
-    if (func_type == JS_PARSE_FUNC_ARROW) {
-        fd->new_target_allowed = fd->parent->new_target_allowed;
-        fd->super_call_allowed = fd->parent->super_call_allowed;
-        fd->super_allowed = fd->parent->super_allowed;
-        fd->arguments_allowed = fd->parent->arguments_allowed;
-    } else {
-        fd->new_target_allowed = TRUE;
-        fd->super_call_allowed = fd->is_derived_class_constructor;
-        fd->super_allowed = fd->has_home_object;
-        fd->arguments_allowed = TRUE;
-    }
-
-    /* fd->in_function_body == FALSE prevents yield/await during the parsing
-       of the arguments in generator/async functions. They are parsed as
-       regular identifiers for other function kinds. */
-    fd->func_kind = func_kind;
-    fd->func_type = func_type;
-
-    if (func_type == JS_PARSE_FUNC_CLASS_CONSTRUCTOR ||
-        func_type == JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR) {
-        /* error if not invoked as a constructor */
-        emit_op(s, OP_check_ctor);
-    }
-
-    if (func_type == JS_PARSE_FUNC_CLASS_CONSTRUCTOR) {
-        emit_class_field_init(s);
-    }
-    
-    /* parse arguments */
-    fd->has_simple_parameter_list = TRUE;
-    has_opt_arg = FALSE;
-    if (func_type == JS_PARSE_FUNC_ARROW && s->token.val == TOK_IDENT) {
-        JSAtom name;
-        if (s->token.u.ident.is_reserved) {
-            js_parse_error_reserved_identifier(s);
-            goto fail;
-        }
-        name = s->token.u.ident.atom;
-        if (add_arg(ctx, fd, name) < 0)
-            goto fail;
-        fd->defined_arg_count = 1;
-    } else {
-        if (js_parse_expect(s, '('))
-            goto fail;
-
-        while (s->token.val != ')') {
-            JSAtom name;
-            BOOL rest = FALSE;
-            int idx;
-
-            if (s->token.val == TOK_ELLIPSIS) {
-                fd->has_simple_parameter_list = FALSE;
-                rest = TRUE;
-                if (next_token(s))
-                    goto fail;
-            }
-            if (s->token.val == '[' || s->token.val == '{') {
-                fd->has_simple_parameter_list = FALSE;
-                if (rest) {
-                    emit_op(s, OP_rest);
-                    emit_u16(s, fd->arg_count);
-                } else {
-                    /* unnamed arg for destructuring */
-                    idx = add_arg(ctx, fd, JS_ATOM_NULL);
-                    emit_op(s, OP_get_arg);
-                    emit_u16(s, idx);
-                }
-                if (js_parse_destructing_element(s, TOK_VAR, 1, TRUE, -1, TRUE))
-                    goto fail;
-                /* Close var object: necessary if direct eval call
-                   occurred in the assignment expression or if any
-                   variable was captured and a later direct eval call
-                   may instantiate it in the var object.
-                   The next pass will generate the capture if required.
-                 */
-                emit_op(s, OP_close_var_object);
-            } else if (s->token.val == TOK_IDENT) {
-                if (s->token.u.ident.is_reserved) {
-                    js_parse_error_reserved_identifier(s);
-                    goto fail;
-                }
-                name = s->token.u.ident.atom;
-                if (name == JS_ATOM_yield && fd->func_kind == JS_FUNC_GENERATOR) {
-                    js_parse_error_reserved_identifier(s);
-                    goto fail;
-                }
-                idx = add_arg(ctx, fd, name);
-                if (idx < 0)
-                    goto fail;
-                if (next_token(s))
-                    goto fail;
-                if (rest) {
-                    emit_op(s, OP_rest);
-                    emit_u16(s, idx);
-                    emit_op(s, OP_put_arg);
-                    emit_u16(s, idx);
-                    fd->has_simple_parameter_list = FALSE;
-                    has_opt_arg = TRUE;
-                } else if (s->token.val == '=') {
-                    fd->has_simple_parameter_list = FALSE;
-                    has_opt_arg = TRUE;
-
-                    if (next_token(s))
-                        goto fail;
-
-                    /* optimize `x = void 0` default value: no code needed */
-                    if (s->token.val == TOK_VOID) {
-                        JSParsePos pos;
-                        js_parse_get_pos(s, &pos);
-                        if (next_token(s))
-                            goto fail;
-                        if (s->token.val == TOK_NUMBER) {
-                            if (next_token(s))
-                                goto fail;
-                            if (s->token.val == ',') {
-                                if (next_token(s))
-                                    goto fail;
-                                continue;
-                            }
-                            if (s->token.val == ')') {
-                                continue;
-                            }
-                        }
-                        if (js_parse_seek_token(s, &pos))
-                            goto fail;
-                    }
-#if 0
-                    /* XXX: not correct for eval code */
-                    /* Check for a default value of `undefined`
-                       to omit default argument processing */
-                    if (s->token.val == TOK_IDENT &&
-                        s->token.u.ident.atom == JS_ATOM_undefined &&
-                        fd->parent == NULL &&
-                        ((tok = peek_token(s, FALSE)) == ',' || tok == ')')) {
-                        if (next_token(s))  /* ignore undefined token */
-                            goto fail;
-                    } else
-#endif
-                    {
-                        int label = new_label(s);
-                        if (idx > 0) {
-                            emit_op(s, OP_set_arg_valid_upto);
-                            emit_u16(s, idx);
-                        }
-                        emit_op(s, OP_get_arg);
-                        emit_u16(s, idx);
-                        emit_op(s, OP_undefined);
-                        emit_op(s, OP_strict_eq);
-                        emit_goto(s, OP_if_false, label);
-                        if (js_parse_assign_expr(s, TRUE))
-                            goto fail;
-                        set_object_name(s, name);
-                        emit_op(s, OP_put_arg);
-                        emit_u16(s, idx);
-                        /* Close var object: see above comment. */
-                        emit_op(s, OP_close_var_object);
-                        emit_label(s, label);
-                    }
-                } else if (!has_opt_arg) {
-                    fd->defined_arg_count++;
-                }
-            } else {
-                js_parse_error(s, "missing formal parameter");
-                goto fail;
-            }
-            if (rest && s->token.val != ')') {
-                js_parse_expect(s, ')');
-                goto fail;
-            }
-            if (s->token.val == ',') {
-                if (next_token(s))
-                    goto fail;
-            }
-        }
-        if ((func_type == JS_PARSE_FUNC_GETTER && fd->arg_count != 0) ||
-            (func_type == JS_PARSE_FUNC_SETTER && fd->arg_count != 1)) {
-            js_parse_error(s, "invalid number of arguments for getter or setter");
-            goto fail;
-        }
-    }
-
-    if (next_token(s))
-        goto fail;
-
-    /* generator function: yield after the parameters are evaluated */
-    if (func_kind == JS_FUNC_GENERATOR ||
-        func_kind == JS_FUNC_ASYNC_GENERATOR)
-        emit_op(s, OP_initial_yield);
-
-    /* in generators, yield expression is forbidden during the parsing
-       of the arguments */
-    fd->in_function_body = TRUE;
-    push_scope(s);  /* enter body scope: fd->scope_level = 1 */
-
-    if (s->token.val == TOK_ARROW) {
-        if (next_token(s))
-            goto fail;
-
-        if (s->token.val != '{') {
-            if (js_parse_function_check_names(s, fd, func_name))
-                goto fail;
-
-            if (js_parse_assign_expr(s, TRUE))
-                goto fail;
-
-            if (func_kind != JS_FUNC_NORMAL)
-                emit_op(s, OP_return_async);
-            else
-                emit_op(s, OP_return);
-
-            if (!(fd->js_mode & JS_MODE_STRIP)) {
-                /* save the function source code */
-                /* the end of the function source code is after the last
-                   token of the function source stored into s->last_ptr */
-                fd->source_len = s->last_ptr - ptr;
-                fd->source = js_strndup(ctx, (const char *)ptr, fd->source_len);
-                if (!fd->source)
-                    goto fail;
-            }
-            goto done;
-        }
-    }
-
-    if (js_parse_expect(s, '{'))
-        goto fail;
-
-    if (js_parse_directives(s))
-        goto fail;
-
-    /* in strict_mode, check function and argument names */
-    if (js_parse_function_check_names(s, fd, func_name))
-        goto fail;
-
-    while (s->token.val != '}') {
-        if (js_parse_source_element(s))
-            goto fail;
-    }
-    if (!(fd->js_mode & JS_MODE_STRIP)) {
-        /* save the function source code */
-        fd->source_len = s->buf_ptr - ptr;
-        fd->source = js_strndup(ctx, (const char *)ptr, fd->source_len);
-        if (!fd->source)
-            goto fail;
-    }
-
-    if (next_token(s)) {
-        /* consume the '}' */
-        goto fail;
-    }
-
-    /* in case there is no return, add one */
-    if (js_is_live_code(s)) {
-        emit_return(s, FALSE);
-    }
-done:
-    s->cur_func = fd->parent;
-
-    /* create the function object */
-    {
-        int idx;
-        JSAtom func_name = fd->func_name;
-
-        /* the real object will be set at the end of the compilation */
-        idx = cpool_add(s, JS_NULL);
-        fd->parent_cpool_idx = idx;
-
-        if (is_expr) {
-            /* for constructors, no code needs to be generated here */
-            if (func_type != JS_PARSE_FUNC_CLASS_CONSTRUCTOR &&
-                func_type != JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR) {
-                /* OP_fclosure creates the function object from the bytecode
-                   and adds the scope information */
-                emit_op(s, OP_fclosure);
-                emit_u32(s, idx);
-                if (func_name == JS_ATOM_NULL) {
-                    emit_op(s, OP_set_name);
-                    emit_u32(s, JS_ATOM_NULL);
-                }
-            }
-        } else if (func_type == JS_PARSE_FUNC_VAR) {
-            emit_op(s, OP_fclosure);
-            emit_u32(s, idx);
-            if (create_func_var) {
-                if (s->cur_func->is_global_var) {
-                    JSHoistedDef *hf;
-                    /* the global variable must be defined at the start of the
-                       function */
-                    hf = add_hoisted_def(ctx, s->cur_func, -1, func_name, -1, FALSE);
-                    if (!hf)
-                        goto fail;
-                    hf->force_init = ((s->cur_func->js_mode & JS_MODE_STRICT) != 0);
-                    /* store directly into global var, bypass lexical scope */
-                    emit_op(s, OP_dup);
-                    emit_op(s, OP_scope_put_var);
-                    emit_atom(s, func_name);
-                    emit_u16(s, 0);
-                } else {
-                    /* do not call define_var to bypass lexical scope check */
-                    func_idx = find_var(ctx, s->cur_func, func_name);
-                    if (func_idx < 0) {
-                        func_idx = add_var(ctx, s->cur_func, func_name);
-                        if (func_idx < 0)
-                            goto fail;
-                    }
-                    /* store directly into local var, bypass lexical catch scope */
-                    emit_op(s, OP_dup);
-                    emit_op(s, OP_scope_put_var);
-                    emit_atom(s, func_name);
-                    emit_u16(s, 0);
-                }
-            }
-            if (lexical_func_idx >= 0) {
-                /* lexical variable will be initialized upon entering scope */
-                s->cur_func->vars[lexical_func_idx].func_pool_idx = idx;
-                emit_op(s, OP_drop);
-            } else {
-                /* store function object into its lexical name */
-                /* XXX: could use OP_put_loc directly */
-                emit_op(s, OP_scope_put_var_init);
-                emit_atom(s, func_name);
-                emit_u16(s, s->cur_func->scope_level);
-            }
-        } else {
-            if (!s->cur_func->is_global_var) {
-                int var_idx = define_var(s, s->cur_func, func_name, TOK_VAR);
-
-                if (var_idx < 0)
-                    goto fail;
-                /* the variable will be assigned at the top of the function */
-                if (!add_hoisted_def(ctx, s->cur_func, idx, JS_ATOM_NULL, var_idx, FALSE))
-                    goto fail;
-            } else {
-                JSAtom func_var_name;
-                if (func_name == JS_ATOM_NULL)
-                    func_var_name = JS_ATOM__default_; /* export default */
-                else
-                    func_var_name = func_name;
-                /* the variable will be assigned at the top of the function */
-                if (!add_hoisted_def(ctx, s->cur_func, idx, func_var_name, -1, FALSE))
-                    goto fail;
-                if (export_flag != JS_PARSE_EXPORT_NONE) {
-                    if (!add_export_entry(s, s->cur_func->module, func_var_name,
-                                          export_flag == JS_PARSE_EXPORT_NAMED ? func_var_name : JS_ATOM_default, JS_EXPORT_TYPE_LOCAL))
-                        goto fail;
-                }
-            }
-        }
-    }
-    return 0;
- fail:
-    s->cur_func = fd->parent;
-    js_free_function_def(ctx, fd);
-    if (pfd)
-        *pfd = NULL;
-    return -1;
-}
-
-static __exception int js_parse_function_decl(JSParseState *s,
-                                              JSParseFunctionEnum func_type,
-                                              JSFunctionKindEnum func_kind,
-                                              JSAtom func_name,
-                                              const uint8_t *ptr,
-                                              int function_line_num)
-{
-    return js_parse_function_decl2(s, func_type, func_kind, func_name, ptr,
-                                   function_line_num, JS_PARSE_EXPORT_NONE,
-                                   NULL);
-}
-
-static __exception int js_parse_program(JSParseState *s)
-{
-    JSFunctionDef *fd = s->cur_func;
-    int idx;
-
-    if (next_token(s))
-        return -1;
-
-    if (js_parse_directives(s))
-        return -1;
-
-    fd->is_global_var = (fd->eval_type == JS_EVAL_TYPE_GLOBAL) ||
-        (fd->eval_type == JS_EVAL_TYPE_MODULE) ||
-        !(fd->js_mode & JS_MODE_STRICT);
-
-    if (!s->is_module) {
-        /* hidden variable for the return value */
-        fd->eval_ret_idx = idx = add_var(s->ctx, fd, JS_ATOM__ret_);
-        if (idx < 0)
-            return -1;
-    }
-
-    while (s->token.val != TOK_EOF) {
-        if (js_parse_source_element(s))
-            return -1;
-    }
-
-    if (!s->is_module) {
-        /* return the value of the hidden variable eval_ret_idx  */
-        emit_op(s, OP_get_loc);
-        emit_u16(s, fd->eval_ret_idx);
-
-        emit_op(s, OP_return);
-    } else {
-        emit_op(s, OP_return_undef);
-    }
-
-    return 0;
-}
-
-static void js_parse_init(JSContext *ctx, JSParseState *s,
-                          const char *input, size_t input_len,
-                          const char *filename)
-{
-    memset(s, 0, sizeof(*s));
-    s->ctx = ctx;
-    s->filename = filename;
-    s->line_num = 1;
-    s->buf_ptr = (const uint8_t *)input;
-    s->buf_end = s->buf_ptr + input_len;
-    s->token.val = ' ';
-    s->token.line_num = 1;
-}
-
-static JSValue JS_EvalFunctionInternal(JSContext *ctx, JSValue fun_obj,
-                                       JSValueConst this_obj,
-                                       JSVarRef **var_refs, JSStackFrame *sf)
-{
-    JSValue ret_val;
-    uint32_t tag;
-
-    tag = JS_VALUE_GET_TAG(fun_obj);
-    if (tag == JS_TAG_FUNCTION_BYTECODE) {
-        fun_obj = js_closure(ctx, fun_obj, var_refs, sf);
-        ret_val = JS_CallFree(ctx, fun_obj, this_obj, 0, NULL);
-    } else if (tag == JS_TAG_MODULE) {
-        JSModuleDef *m;
-        m = JS_VALUE_GET_PTR(fun_obj);
-        /* the module refcount should be >= 2 */
-        JS_FreeValue(ctx, fun_obj);
-        if (js_instantiate_module(ctx, m) < 0)
-            goto fail;
-        ret_val = js_evaluate_module(ctx, m);
-        if (JS_IsException(ret_val)) {
-        fail:
-            js_free_modules(ctx, JS_FREE_MODULE_NOT_EVALUATED);
-            return JS_EXCEPTION;
-        }
-    } else {
-        JS_FreeValue(ctx, fun_obj);
-        ret_val = JS_ThrowTypeError(ctx, "bytecode function expected");
-    }
-    return ret_val;
-}
-
-JSValue JS_EvalFunction(JSContext *ctx, JSValue fun_obj, JSValueConst this_obj)
-{
-    return JS_EvalFunctionInternal(ctx, fun_obj, this_obj, NULL, NULL);
-}
-
-static void skip_shebang(JSParseState *s)
-{
-    const uint8_t *p = s->buf_ptr;
-    int c;
-
-    if (p[0] == '#' && p[1] == '!') {
-        p += 2;
-        while (p < s->buf_end) {
-            if (*p == '\n' || *p == '\r') {
-                break;
-            } else if (*p >= 0x80) {
-                c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
-                if (c == CP_LS || c == CP_PS)
-                    break;
-            } else {
-                p++;
-            }
-        }
-        s->buf_ptr = p;
-    }
-}
-
-/* 'input' must be zero terminated i.e. input[input_len] = '\0'. */
-static JSValue __JS_EvalInternal(JSContext *ctx, JSValueConst this_obj,
-                                 const char *input, size_t input_len,
-                                 const char *filename, int flags, int scope_idx)
-{
-    JSParseState s1, *s = &s1;
-    int err, js_mode, eval_type;
-    JSValue fun_obj, ret_val;
-    JSStackFrame *sf;
-    JSVarRef **var_refs;
-    JSFunctionBytecode *b;
-    JSFunctionDef *fd;
-    JSModuleDef *m;
-
-    js_parse_init(ctx, s, input, input_len, filename);
-    skip_shebang(s);
-
-    eval_type = flags & JS_EVAL_TYPE_MASK;
-    m = NULL;
-    if (eval_type == JS_EVAL_TYPE_DIRECT) {
-        JSObject *p;
-        sf = ctx->current_stack_frame;
-        assert(sf != NULL);
-        assert(JS_VALUE_GET_TAG(sf->cur_func) == JS_TAG_OBJECT);
-        p = JS_VALUE_GET_OBJ(sf->cur_func);
-        assert(js_class_has_bytecode(p->class_id));
-        b = p->u.func.function_bytecode;
-        var_refs = p->u.func.var_refs;
-        js_mode = b->js_mode;
-    } else {
-        sf = NULL;
-        b = NULL;
-        var_refs = NULL;
-        js_mode = 0;
-        if (flags & JS_EVAL_FLAG_STRICT)
-            js_mode |= JS_MODE_STRICT;
-        if (flags & JS_EVAL_FLAG_STRIP)
-            js_mode |= JS_MODE_STRIP;
-        if (eval_type == JS_EVAL_TYPE_MODULE) {
-            JSAtom module_name = JS_NewAtom(ctx, filename);
-            if (module_name == JS_ATOM_NULL)
-                return JS_EXCEPTION;
-            m = js_new_module_def(ctx, module_name);
-            if (!m)
-                return JS_EXCEPTION;
-            js_mode |= JS_MODE_STRICT;
-        }
-    }
-    fd = js_new_function_def(ctx, NULL, TRUE, FALSE, filename, 1);
-    if (!fd)
-        goto fail1;
-    s->cur_func = fd;
-    fd->eval_type = eval_type;
-    fd->has_this_binding = (eval_type != JS_EVAL_TYPE_DIRECT);
-    if (eval_type == JS_EVAL_TYPE_DIRECT) {
-        fd->new_target_allowed = b->new_target_allowed;
-        fd->super_call_allowed = b->super_call_allowed;
-        fd->super_allowed = b->super_allowed;
-        fd->arguments_allowed = b->arguments_allowed;
-    } else {
-        fd->new_target_allowed = FALSE;
-        fd->super_call_allowed = FALSE;
-        fd->super_allowed = FALSE;
-        fd->arguments_allowed = TRUE;
-    }
-    fd->js_mode = js_mode;
-    fd->func_name = JS_DupAtom(ctx, JS_ATOM__eval_);
-    if (b) {
-        if (add_closure_variables(ctx, fd, b, scope_idx))
-            goto fail;
-    }
-    fd->module = m;
-    s->is_module = (m != NULL);
-    s->allow_html_comments = !s->is_module;
-
-    push_scope(s); /* body scope */
-
-    err = js_parse_program(s);
-    if (err) {
-    fail:
-        free_token(s, &s->token);
-        js_free_function_def(ctx, fd);
-        goto fail1;
-    }
-
-    /* create the function object and all the enclosed functions */
-    fun_obj = js_create_function(ctx, fd);
-    if (JS_IsException(fun_obj))
-        goto fail1;
-    /* Could add a flag to avoid resolution if necessary */
-    if (m) {
-        m->func_obj = fun_obj;
-        if (js_resolve_module(ctx, m) < 0)
-            goto fail1;
-        fun_obj = JS_DupValue(ctx, JS_MKPTR(JS_TAG_MODULE, m));
-    }
-    if (flags & JS_EVAL_FLAG_COMPILE_ONLY) {
-        ret_val = fun_obj;
-    } else {
-        ret_val = JS_EvalFunctionInternal(ctx, fun_obj, this_obj, var_refs, sf);
-    }
-    return ret_val;
- fail1:
-    /* XXX: should free all the unresolved dependencies */
-    if (m)
-        js_free_module_def(ctx, m);
-    return JS_EXCEPTION;
-}
-
-/* the indirection is needed to make 'eval' optional */
-static JSValue JS_EvalInternal(JSContext *ctx, JSValueConst this_obj,
-                               const char *input, size_t input_len,
-                               const char *filename, int flags, int scope_idx)
-{
-    if (unlikely(!ctx->eval_internal)) {
-        return JS_ThrowTypeError(ctx, "eval is not supported");
-    }
-    return ctx->eval_internal(ctx, this_obj, input, input_len, filename,
-                              flags, scope_idx);
-}
-
-static JSValue JS_EvalObject(JSContext *ctx, JSValueConst this_obj,
-                             JSValueConst val, int flags, int scope_idx)
-{
-    JSValue ret;
-    const char *str;
-    size_t len;
-
-    if (!JS_IsString(val))
-        return JS_DupValue(ctx, val);
-    str = JS_ToCStringLen(ctx, &len, val);
-    if (!str)
-        return JS_EXCEPTION;
-    ret = JS_EvalInternal(ctx, this_obj, str, len, "<input>", flags, scope_idx);
-    JS_FreeCString(ctx, str);
-    return ret;
-
-}
-
-JSValue JS_Eval(JSContext *ctx, const char *input, size_t input_len,
-                const char *filename, int eval_flags)
-{
-    int eval_type = eval_flags & JS_EVAL_TYPE_MASK;
-    JSValue ret;
-
-    assert(eval_type == JS_EVAL_TYPE_GLOBAL ||
-           eval_type == JS_EVAL_TYPE_MODULE);
-    ret = JS_EvalInternal(ctx, ctx->global_obj, input, input_len, filename,
-                          eval_flags, -1);
-    return ret;
-}
-
-JSValue JS_EvalBinary(JSContext *ctx,
-                      const uint8_t *buf, size_t buf_len, int flags)
-{
-    JSValue obj;
-    obj = JS_ReadObject(ctx, buf, buf_len, JS_READ_OBJ_BYTECODE);
-    if (JS_IsException(obj))
-        return obj;
-    if (flags & JS_EVAL_BINARY_LOAD_ONLY) {
-        return obj;
-    } else {
-        /* if a module, we load the dependencies here */
-        if (JS_VALUE_GET_TAG(obj) == JS_TAG_MODULE) {
-            JSModuleDef *m = JS_VALUE_GET_PTR(obj);
-            if (js_resolve_module(ctx, m) < 0) {
-                JS_FreeValue(ctx, obj);
-                js_free_modules(ctx, JS_FREE_MODULE_NOT_RESOLVED);
-                return JS_EXCEPTION;
-            }
-        }
-        return JS_EvalFunction(ctx, obj, ctx->global_obj);
-    }
-}
-
-/*******************************************************************/
-/* binary object writer & reader */
-
-typedef enum BCTagEnum {
-    BC_TAG_NULL = 1,
-    BC_TAG_UNDEFINED,
-    BC_TAG_BOOL_FALSE,
-    BC_TAG_BOOL_TRUE,
-    BC_TAG_INT32,
-    BC_TAG_FLOAT64,
-    BC_TAG_STRING,
-    BC_TAG_OBJECT,
-    BC_TAG_ARRAY,
-    BC_TAG_BIG_INT,
-    BC_TAG_BIG_FLOAT,
-    BC_TAG_TEMPLATE_OBJECT,
-    BC_TAG_FUNCTION_BYTECODE,
-    BC_TAG_MODULE,
-} BCTagEnum;
-
-#ifdef CONFIG_BIGNUM
-#define BC_BASE_VERSION 2
-#else
-#define BC_BASE_VERSION 1
-#endif
-#define BC_BE_VERSION 0x40
-#ifdef WORDS_BIGENDIAN
-#define BC_VERSION (BC_BASE_VERSION | BC_BE_VERSION)
-#else
-#define BC_VERSION BC_BASE_VERSION
-#endif
-
-typedef struct BCWriterState {
-    JSContext *ctx;
-    DynBuf dbuf;
-    BOOL byte_swap;
-    BOOL allow_bytecode;
-    uint32_t first_atom;
-    uint32_t *atom_to_idx;
-    int atom_to_idx_size;
-    JSAtom *idx_to_atom;
-    int idx_to_atom_count;
-    int idx_to_atom_size;
-} BCWriterState;
-
-#ifdef DUMP_READ_OBJECT
-static const char * const bc_tag_str[] = {
-    "invalid",
-    "null",
-    "undefined",
-    "false",
-    "true",
-    "int32",
-    "float64",
-    "string",
-    "object",
-    "array",
-    "big_int",
-    "big_float",
-    "template",
-    "function",
-    "module",
-};
-#endif
-
-static void bc_put_u8(BCWriterState *s, uint8_t v)
-{
-    dbuf_putc(&s->dbuf, v);
-}
-
-static void bc_put_u16(BCWriterState *s, uint16_t v)
-{
-    if (s->byte_swap)
-        v = bswap16(v);
-    dbuf_put_u16(&s->dbuf, v);
-}
-
-static __attribute__((unused)) void bc_put_u32(BCWriterState *s, uint32_t v)
-{
-    if (s->byte_swap)
-        v = bswap32(v);
-    dbuf_put_u32(&s->dbuf, v);
-}
-
-static void bc_put_u64(BCWriterState *s, uint64_t v)
-{
-    if (s->byte_swap)
-        v = bswap64(v);
-    dbuf_put(&s->dbuf, (uint8_t *)&v, sizeof(v));
-}
-
-static void bc_put_leb128(BCWriterState *s, uint32_t v)
-{
-    dbuf_put_leb128(&s->dbuf, v);
-}
-
-static void bc_put_sleb128(BCWriterState *s, int32_t v)
-{
-    dbuf_put_sleb128(&s->dbuf, v);
-}
-
-static void bc_set_flags(uint32_t *pflags, int *pidx, uint32_t val, int n)
-{
-    *pflags = *pflags | (val << *pidx);
-    *pidx += n;
-}
-
-static int bc_atom_to_idx(BCWriterState *s, uint32_t *pres, JSAtom atom)
-{
-    uint32_t v;
-
-    if (atom < s->first_atom || __JS_AtomIsTaggedInt(atom)) {
-        *pres = atom;
-        return 0;
-    }
-    atom -= s->first_atom;
-    if (atom < s->atom_to_idx_size && s->atom_to_idx[atom] != 0) {
-        *pres = s->atom_to_idx[atom];
-        return 0;
-    }
-    if (atom >= s->atom_to_idx_size) {
-        size_t new_size, i, slack;
-        uint32_t *new_tab;
-        /* XXX: potential arithmetic overflow */
-        new_size = s->atom_to_idx_size * 3 / 2;
-        if ((atom + 1) > new_size)
-            new_size = atom + 1;
-        new_tab = js_realloc2(s->ctx, s->atom_to_idx,
-                              new_size * sizeof(s->atom_to_idx[0]), &slack);
-        if (!new_tab)
-            goto fail;
-        new_size += slack / sizeof(*new_tab);
-        for(i = s->atom_to_idx_size; i < new_size; i++)
-            new_tab[i] = 0;
-        s->atom_to_idx = new_tab;
-        s->atom_to_idx_size = new_size;
-    }
-    if ((s->idx_to_atom_count + 1) > s->idx_to_atom_size) {
-        size_t new_size, slack;
-        JSAtom *new_tab;
-        new_size = s->idx_to_atom_size * 3 / 2;
-        if ((s->idx_to_atom_count + 1) > new_size)
-            new_size = s->idx_to_atom_count + 1;
-        new_tab = js_realloc2(s->ctx, s->idx_to_atom,
-                              new_size * sizeof(s->idx_to_atom[0]), &slack);
-        if (!new_tab)
-            goto fail;
-        new_size += slack / sizeof(*new_tab);
-        s->idx_to_atom = new_tab;
-        s->idx_to_atom_size = new_size;
-    }
-
-    v = s->idx_to_atom_count++;
-    s->idx_to_atom[v] = atom + s->first_atom;
-    v += s->first_atom;
-    s->atom_to_idx[atom] = v;
-    *pres = v;
-    return 0;
- fail:
-    *pres = 0;
-    return -1;
-}
-
-static int bc_put_atom(BCWriterState *s, JSAtom atom)
-{
-    uint32_t v;
-
-    if (__JS_AtomIsTaggedInt(atom)) {
-        v = (__JS_AtomToUInt32(atom) << 1) | 1;
-    } else {
-        if (bc_atom_to_idx(s, &v, atom))
-            return -1;
-        v <<= 1;
-    }
-    bc_put_leb128(s, v);
-    return 0;
-}
-
-static void bc_byte_swap(uint8_t *bc_buf, int bc_len)
-{
-    int pos, len, op, fmt;
-
-    pos = 0;
-    while (pos < bc_len) {
-        op = bc_buf[pos];
-        len = short_opcode_info(op).size;
-        fmt = short_opcode_info(op).fmt;
-        switch(fmt) {
-        case OP_FMT_u16:
-        case OP_FMT_i16:
-        case OP_FMT_label16:
-        case OP_FMT_npop:
-        case OP_FMT_loc:
-        case OP_FMT_arg:
-        case OP_FMT_var_ref:
-            put_u16(bc_buf + pos + 1,
-                    bswap16(get_u16(bc_buf + pos + 1)));
-            break;
-        case OP_FMT_i32:
-        case OP_FMT_u32:
-        case OP_FMT_const:
-        case OP_FMT_label:
-        case OP_FMT_atom:
-        case OP_FMT_atom_u8:
-            put_u32(bc_buf + pos + 1,
-                    bswap32(get_u32(bc_buf + pos + 1)));
-            break;
-        case OP_FMT_atom_u16:
-        case OP_FMT_label_u16:
-            put_u32(bc_buf + pos + 1,
-                    bswap32(get_u32(bc_buf + pos + 1)));
-            put_u16(bc_buf + pos + 1 + 4,
-                    bswap16(get_u16(bc_buf + pos + 1 + 4)));
-            break;
-        case OP_FMT_atom_label_u8:
-        case OP_FMT_atom_label_u16:
-            put_u32(bc_buf + pos + 1,
-                    bswap32(get_u32(bc_buf + pos + 1)));
-            put_u32(bc_buf + pos + 1 + 4,
-                    bswap32(get_u32(bc_buf + pos + 1 + 4)));
-            if (fmt == OP_FMT_atom_label_u16) {
-                put_u16(bc_buf + pos + 1 + 4 + 4,
-                        bswap16(get_u16(bc_buf + pos + 1 + 4 + 4)));
-            }
-            break;
-        default:
-            break;
-        }
-        pos += len;
-    }
-}
-
-static int JS_WriteFunctionBytecode(BCWriterState *s,
-                                    const uint8_t *bc_buf1, int bc_len)
-{
-    int pos, len, op;
-    JSAtom atom;
-    uint8_t *bc_buf;
-    uint32_t val;
-
-    bc_buf = js_malloc(s->ctx, bc_len);
-    if (!bc_buf)
-        return -1;
-    memcpy(bc_buf, bc_buf1, bc_len);
-
-    pos = 0;
-    while (pos < bc_len) {
-        op = bc_buf[pos];
-        len = short_opcode_info(op).size;
-        switch(short_opcode_info(op).fmt) {
-        case OP_FMT_atom:
-        case OP_FMT_atom_u8:
-        case OP_FMT_atom_u16:
-        case OP_FMT_atom_label_u8:
-        case OP_FMT_atom_label_u16:
-            atom = get_u32(bc_buf + pos + 1);
-            if (bc_atom_to_idx(s, &val, atom))
-                goto fail;
-            put_u32(bc_buf + pos + 1, val);
-            break;
-        default:
-            break;
-        }
-        pos += len;
-    }
-
-    if (s->byte_swap)
-        bc_byte_swap(bc_buf, bc_len);
-
-    dbuf_put(&s->dbuf, bc_buf, bc_len);
-
-    js_free(s->ctx, bc_buf);
-    return 0;
- fail:
-    js_free(s->ctx, bc_buf);
-    return -1;
-}
-
-static void JS_WriteString(BCWriterState *s, JSString *p)
-{
-    int i;
-    bc_put_leb128(s, ((uint32_t)p->len << 1) | p->is_wide_char);
-    if (p->is_wide_char) {
-        for(i = 0; i < p->len; i++)
-            bc_put_u16(s, p->u.str16[i]);
-    } else {
-        dbuf_put(&s->dbuf, p->u.str8, p->len);
-    }
-}
-
-static int JS_WriteObjectRec(BCWriterState *s, JSValueConst obj)
-{
-    uint32_t tag = JS_VALUE_GET_NORM_TAG(obj);
-
-    switch(tag) {
-    case JS_TAG_NULL:
-        bc_put_u8(s, BC_TAG_NULL);
-        break;
-    case JS_TAG_UNDEFINED:
-        bc_put_u8(s, BC_TAG_UNDEFINED);
-        break;
-    case JS_TAG_BOOL:
-        bc_put_u8(s, BC_TAG_BOOL_FALSE + JS_VALUE_GET_INT(obj));
-        break;
-    case JS_TAG_INT:
-        bc_put_u8(s, BC_TAG_INT32);
-        bc_put_sleb128(s, JS_VALUE_GET_INT(obj));
-        break;
-    case JS_TAG_FLOAT64:
-        {
-            JSFloat64Union u;
-            bc_put_u8(s, BC_TAG_FLOAT64);
-            u.d = JS_VALUE_GET_FLOAT64(obj);
-            bc_put_u64(s, u.u64);
-        }
-        break;
-    case JS_TAG_STRING:
-        {
-            JSString *p = JS_VALUE_GET_STRING(obj);
-            bc_put_u8(s, BC_TAG_STRING);
-            JS_WriteString(s, p);
-        }
-        break;
-    case JS_TAG_FUNCTION_BYTECODE:
-        {
-            JSFunctionBytecode *b = JS_VALUE_GET_PTR(obj);
-            uint32_t flags;
-            int idx, i;
-
-            if (!s->allow_bytecode)
-                goto invalid_tag;
-            bc_put_u8(s, BC_TAG_FUNCTION_BYTECODE);
-            flags = idx = 0;
-            bc_set_flags(&flags, &idx, b->has_prototype, 1);
-            bc_set_flags(&flags, &idx, b->has_simple_parameter_list, 1);
-            bc_set_flags(&flags, &idx, b->is_derived_class_constructor, 1);
-            bc_set_flags(&flags, &idx, b->need_home_object, 1);
-            bc_set_flags(&flags, &idx, b->func_kind, 2);
-            bc_set_flags(&flags, &idx, b->new_target_allowed, 1);
-            bc_set_flags(&flags, &idx, b->super_call_allowed, 1);
-            bc_set_flags(&flags, &idx, b->super_allowed, 1);
-            bc_set_flags(&flags, &idx, b->arguments_allowed, 1);
-            bc_set_flags(&flags, &idx, b->has_debug, 1);
-            assert(idx <= 16);
-            bc_put_u16(s, flags);
-            bc_put_u8(s, b->js_mode);
-            bc_put_atom(s, b->func_name);
-
-            bc_put_leb128(s, b->arg_count);
-            bc_put_leb128(s, b->var_count);
-            bc_put_leb128(s, b->defined_arg_count);
-            bc_put_leb128(s, b->stack_size);
-            bc_put_leb128(s, b->closure_var_count);
-            bc_put_leb128(s, b->cpool_count);
-            bc_put_leb128(s, b->byte_code_len);
-            if (b->vardefs) {
-                bc_put_leb128(s, b->arg_count + b->var_count);
-                for(i = 0; i < b->arg_count + b->var_count; i++) {
-                    JSVarDef *vd = &b->vardefs[i];
-                    bc_put_atom(s, vd->var_name);
-                    bc_put_leb128(s, vd->scope_level);
-                    bc_put_leb128(s, vd->scope_next + 1);
-                    flags = idx = 0;
-                    bc_set_flags(&flags, &idx, vd->var_kind, 3);
-                    bc_set_flags(&flags, &idx, vd->is_function, 1);
-                    bc_set_flags(&flags, &idx, vd->is_func_var, 1);
-                    bc_set_flags(&flags, &idx, vd->is_const, 1);
-                    bc_set_flags(&flags, &idx, vd->is_lexical, 1);
-                    bc_set_flags(&flags, &idx, vd->is_captured, 1);
-                    assert(idx <= 8);
-                    bc_put_u8(s, flags);
-                }
-            } else {
-                bc_put_leb128(s, 0);
-            }
-
-            for(i = 0; i < b->closure_var_count; i++) {
-                JSClosureVar *cv = &b->closure_var[i];
-                bc_put_atom(s, cv->var_name);
-                bc_put_leb128(s, cv->var_idx);
-                flags = idx = 0;
-                bc_set_flags(&flags, &idx, cv->is_local, 1);
-                bc_set_flags(&flags, &idx, cv->is_arg, 1);
-                bc_set_flags(&flags, &idx, cv->is_const, 1);
-                bc_set_flags(&flags, &idx, cv->is_lexical, 1);
-                bc_set_flags(&flags, &idx, cv->var_kind, 3);
-                assert(idx <= 8);
-                bc_put_u8(s, flags);
-            }
-
-            if (JS_WriteFunctionBytecode(s, b->byte_code_buf, b->byte_code_len))
-                goto fail;
-
-            if (b->has_debug) {
-                bc_put_atom(s, b->debug.filename);
-                bc_put_leb128(s, b->debug.line_num);
-                bc_put_leb128(s, b->debug.pc2line_len);
-                dbuf_put(&s->dbuf, b->debug.pc2line_buf, b->debug.pc2line_len);
-            }
-
-            for(i = 0; i < b->cpool_count; i++) {
-                if (JS_WriteObjectRec(s, b->cpool[i]))
-                    goto fail;
-            }
-        }
-        break;
-    case JS_TAG_MODULE:
-        {
-            JSModuleDef *m = JS_VALUE_GET_PTR(obj);
-            int i;
-
-            if (!s->allow_bytecode)
-                goto invalid_tag;
-            bc_put_u8(s, BC_TAG_MODULE);
-            bc_put_atom(s, m->module_name);
-
-            bc_put_leb128(s, m->req_module_entries_count);
-            for(i = 0; i < m->req_module_entries_count; i++) {
-                JSReqModuleEntry *rme = &m->req_module_entries[i];
-                bc_put_atom(s, rme->module_name);
-            }
-
-            bc_put_leb128(s, m->export_entries_count);
-            for(i = 0; i < m->export_entries_count; i++) {
-                JSExportEntry *me = &m->export_entries[i];
-                bc_put_u8(s, me->export_type);
-                if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
-                    bc_put_leb128(s, me->u.local.var_idx);
-                } else {
-                    bc_put_leb128(s, me->u.req_module_idx);
-                    bc_put_atom(s, me->local_name);
-                }
-                bc_put_atom(s, me->export_name);
-            }
-
-            bc_put_leb128(s, m->star_export_entries_count);
-            for(i = 0; i < m->star_export_entries_count; i++) {
-                JSStarExportEntry *se = &m->star_export_entries[i];
-                bc_put_leb128(s, se->req_module_idx);
-            }
-
-            bc_put_leb128(s, m->import_entries_count);
-            for(i = 0; i < m->import_entries_count; i++) {
-                JSImportEntry *mi = &m->import_entries[i];
-                bc_put_leb128(s, mi->var_idx);
-                bc_put_atom(s, mi->import_name);
-                bc_put_leb128(s, mi->req_module_idx);
-            }
-
-            if (JS_WriteObjectRec(s, m->func_obj))
-                goto fail;
-        }
-        break;
-    case JS_TAG_OBJECT:
-        {
-            JSObject *p = JS_VALUE_GET_OBJ(obj);
-            uint32_t i, prop_count, len;
-            JSShape *sh;
-            JSShapeProperty *pr;
-            JSValue val;
-            int ret, pass;
-            BOOL is_template;
-            JSAtom atom;
-
-            if (p->class_id != JS_CLASS_ARRAY &&
-                p->class_id != JS_CLASS_OBJECT) {
-                JS_ThrowTypeError(s->ctx, "unsupported object class");
-                goto fail;
-            }
-            if (p->tmp_mark) {
-                JS_ThrowTypeError(s->ctx, "circular reference");
-                goto fail;
-            }
-            p->tmp_mark = 1;
-            if (p->class_id == JS_CLASS_ARRAY) {
-                if (s->allow_bytecode && !p->extensible) {
-                    /* not extensible array: we consider it is a
-                       template when we are saving bytecode */
-                    bc_put_u8(s, BC_TAG_TEMPLATE_OBJECT);
-                    is_template = TRUE;
-                } else {
-                    bc_put_u8(s, BC_TAG_ARRAY);
-                    is_template = FALSE;
-                }
-                if (js_get_length32(s->ctx, &len, obj))
-                    goto fail1;
-                bc_put_leb128(s, len);
-                for(i = 0; i < len; i++) {
-                    val = JS_GetPropertyUint32(s->ctx, obj, i);
-                    if (JS_IsException(val))
-                        goto fail1;
-                    ret = JS_WriteObjectRec(s, val);
-                    JS_FreeValue(s->ctx, val);
-                    if (ret)
-                        goto fail1;
-                }
-                if (is_template) {
-                    val = JS_GetProperty(s->ctx, obj, JS_ATOM_raw);
-                    if (JS_IsException(val))
-                        goto fail1;
-                    ret = JS_WriteObjectRec(s, val);
-                    JS_FreeValue(s->ctx, val);
-                    if (ret)
-                        goto fail1;
-                }
-            } else {
-                bc_put_u8(s, BC_TAG_OBJECT);
-                prop_count = 0;
-                sh = p->shape;
-                for(pass = 0; pass < 2; pass++) {
-                    if (pass == 1)
-                        bc_put_leb128(s, prop_count);
-                    for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count; i++, pr++) {
-                        atom = pr->atom;
-                        if (atom != JS_ATOM_NULL &&
-                            JS_AtomIsString(s->ctx, atom) &&
-                            (pr->flags & JS_PROP_ENUMERABLE)) {
-                            if (pr->flags & JS_PROP_TMASK) {
-                                JS_ThrowTypeError(s->ctx, "only value properties are supported");
-                                goto fail;
-                            }
-                            if (pass == 0) {
-                                prop_count++;
-                            } else {
-                                bc_put_atom(s, atom);
-                                if (JS_WriteObjectRec(s, p->prop[i].u.value)) {
-                                fail1:
-                                    p->tmp_mark = 0;
-                                    goto fail;
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-            p->tmp_mark = 0;
-        }
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-    case JS_TAG_BIG_FLOAT:
-        {
-            int32_t e;
-            JSBigFloat *bf = JS_VALUE_GET_PTR(obj);
-            bf_t *a = &bf->num;
-            size_t len, i, n1, j;
-            limb_t v;
-
-            bc_put_u8(s, tag == JS_TAG_BIG_INT ? BC_TAG_BIG_INT :
-                      BC_TAG_BIG_FLOAT);
-            if (a->len != 0) {
-                i = 0;
-                while (i < a->len && a->tab[i] == 0)
-                    i++;
-                assert(i < a->len);
-                v = a->tab[i];
-                n1 = sizeof(limb_t);
-                while ((v & 0xff) == 0) {
-                    n1--;
-                    v >>= 8;
-                }
-                i++;
-                len = (a->len - i) * sizeof(limb_t) + n1;
-                if (len > INT32_MAX) {
-                    JS_ThrowInternalError(s->ctx, "bignum is too large");
-                    goto fail;
-                }
-                /* XXX: it would be slightly more efficient to put the
-                   sign in the MSB of the mantissa */
-                bc_put_leb128(s, len * 2 + a->sign);
-                /* always saved in byte based little endian representation */
-                for(j = 0; j < n1; j++) {
-                    dbuf_putc(&s->dbuf, v >> (j * 8));
-                }
-                for(; i < a->len; i++) {
-                    limb_t v = a->tab[i];
-#if LIMB_BITS == 32
-#ifdef WORDS_BIGENDIAN
-                    v = bswap32(v);
-#endif
-                    dbuf_put_u32(&s->dbuf, v);
-#else
-#ifdef WORDS_BIGENDIAN
-                    v = bswap64(v);
-#endif
-                    dbuf_put_u64(&s->dbuf, v);
-#endif
-                }
-#if LIMB_BITS != 32
-                if (a->expn <= INT32_MIN || a->expn >= (INT32_MAX - 1)) {
-                    JS_ThrowInternalError(s->ctx, "bignum exponent is too large");
-                    goto fail;
-                }
-#endif
-                bc_put_sleb128(s, a->expn);
-            } else {
-                bc_put_leb128(s, a->sign); /* length + sign */
-                if (tag == JS_TAG_BIG_FLOAT) {
-                    /* special numbers */
-                    if (a->expn == BF_EXP_ZERO) {
-                        e = 0;
-                    } else if (a->expn == BF_EXP_INF) {
-                        e = 1;
-                    } else {
-                        e = 2;
-                    }
-                    bc_put_u8(s, e);
-                }
-            }
-        }
-        break;
-#endif
-    default:
-    invalid_tag:
-        JS_ThrowInternalError(s->ctx, "unsupported tag (%d)", tag);
-        goto fail;
-    }
-    return 0;
-
- fail:
-    return -1;
-}
-
-/* create the atom table */
-static int JS_WriteObjectAtoms(BCWriterState *s)
-{
-    JSRuntime *rt = s->ctx->rt;
-    DynBuf dbuf1;
-    int i, atoms_size;
-    uint8_t version;
-
-    dbuf1 = s->dbuf;
-    js_dbuf_init(s->ctx, &s->dbuf);
-
-    version = BC_VERSION;
-    if (s->byte_swap)
-        version ^= BC_BE_VERSION;
-    bc_put_u8(s, version);
-
-    bc_put_leb128(s, s->idx_to_atom_count);
-    for(i = 0; i < s->idx_to_atom_count; i++) {
-        JSAtomStruct *p = rt->atom_array[s->idx_to_atom[i]];
-        JS_WriteString(s, p);
-    }
-    /* XXX: should check for OOM in above phase */
-
-    /* move the atoms at the start */
-    /* XXX: could just append dbuf1 data, but it uses more memory if
-       dbuf1 is larger than dbuf */
-    atoms_size = s->dbuf.size;
-    if (dbuf_realloc(&dbuf1, dbuf1.size + atoms_size))
-        goto fail;
-    memmove(dbuf1.buf + atoms_size, dbuf1.buf, dbuf1.size);
-    memcpy(dbuf1.buf, s->dbuf.buf, atoms_size);
-    dbuf1.size += atoms_size;
-    dbuf_free(&s->dbuf);
-    s->dbuf = dbuf1;
-    return 0;
- fail:
-    dbuf_free(&dbuf1);
-    return -1;
-}
-
-uint8_t *JS_WriteObject(JSContext *ctx, size_t *psize, JSValueConst obj,
-                        int flags)
-{
-    BCWriterState ss, *s = &ss;
-
-    memset(s, 0, sizeof(*s));
-    s->ctx = ctx;
-    /* XXX: byte swapped output is untested */
-    s->byte_swap = ((flags & JS_WRITE_OBJ_BSWAP) != 0);
-    s->allow_bytecode = ((flags & JS_WRITE_OBJ_BYTECODE) != 0);
-    /* XXX: could use a different version when bytecode is included */
-    if (s->allow_bytecode)
-        s->first_atom = JS_ATOM_END;
-    else
-        s->first_atom = 1;
-    js_dbuf_init(ctx, &s->dbuf);
-
-    if (JS_WriteObjectRec(s, obj))
-        goto fail;
-    if (JS_WriteObjectAtoms(s))
-        goto fail;
-    js_free(ctx, s->atom_to_idx);
-    js_free(ctx, s->idx_to_atom);
-    *psize = s->dbuf.size;
-    return s->dbuf.buf;
- fail:
-    js_free(ctx, s->atom_to_idx);
-    js_free(ctx, s->idx_to_atom);
-    dbuf_free(&s->dbuf);
-    *psize = 0;
-    return NULL;
-}
-
-typedef struct BCReaderState {
-    JSContext *ctx;
-    const uint8_t *buf_start, *ptr, *buf_end;
-    uint32_t first_atom;
-    uint32_t idx_to_atom_count;
-    JSAtom *idx_to_atom;
-    int error_state;
-    BOOL allow_bytecode;
-    BOOL is_rom_data;
-#ifdef DUMP_READ_OBJECT
-    const uint8_t *ptr_last;
-    int level;
-#endif
-} BCReaderState;
-
-#ifdef DUMP_READ_OBJECT
-static void __attribute__((format(printf, 2, 3))) bc_read_trace(BCReaderState *s, const char *fmt, ...) {
-    va_list ap;
-    int i, n, n0;
-
-    if (!s->ptr_last)
-        s->ptr_last = s->buf_start;
-
-    n = n0 = 0;
-    if (s->ptr > s->ptr_last || s->ptr == s->buf_start) {
-        n0 = printf("%04x: ", (int)(s->ptr_last - s->buf_start));
-        n += n0;
-    }
-    for (i = 0; s->ptr_last < s->ptr; i++) {
-        if ((i & 7) == 0 && i > 0) {
-            printf("\n%*s", n0, "");
-            n = n0;
-        }
-        n += printf(" %02x", *s->ptr_last++);
-    }
-    if (*fmt == '}')
-        s->level--;
-    if (n < 32 + s->level * 2) {
-        printf("%*s", 32 + s->level * 2 - n, "");
-    }
-    va_start(ap, fmt);
-    vfprintf(stdout, fmt, ap);
-    va_end(ap);
-    if (strchr(fmt, '{'))
-        s->level++;
-}
-#else
-#define bc_read_trace(...)
-#endif
-
-static int bc_read_error_end(BCReaderState *s)
-{
-    if (!s->error_state) {
-        JS_ThrowSyntaxError(s->ctx, "read after the end of the buffer");
-    }
-    return s->error_state = -1;
-}
-
-static int bc_get_u8(BCReaderState *s, uint8_t *pval)
-{
-    if (unlikely(s->buf_end - s->ptr < 1)) {
-        *pval = 0; /* avoid warning */
-        return bc_read_error_end(s);
-    }
-    *pval = *s->ptr++;
-    return 0;
-}
-
-static int bc_get_u16(BCReaderState *s, uint16_t *pval)
-{
-    if (unlikely(s->buf_end - s->ptr < 2)) {
-        *pval = 0; /* avoid warning */
-        return bc_read_error_end(s);
-    }
-    *pval = get_u16(s->ptr);
-    s->ptr += 2;
-    return 0;
-}
-
-static __attribute__((unused)) int bc_get_u32(BCReaderState *s, uint32_t *pval)
-{
-    if (unlikely(s->buf_end - s->ptr < 4)) {
-        *pval = 0; /* avoid warning */
-        return bc_read_error_end(s);
-    }
-    *pval = get_u32(s->ptr);
-    s->ptr += 4;
-    return 0;
-}
-
-static int bc_get_u64(BCReaderState *s, uint64_t *pval)
-{
-    if (unlikely(s->buf_end - s->ptr < 8)) {
-        *pval = 0; /* avoid warning */
-        return bc_read_error_end(s);
-    }
-    *pval = get_u64(s->ptr);
-    s->ptr += 8;
-    return 0;
-}
-
-static int bc_get_leb128(BCReaderState *s, uint32_t *pval)
-{
-    int ret;
-    ret = get_leb128(pval, s->ptr, s->buf_end);
-    if (unlikely(ret < 0))
-        return bc_read_error_end(s);
-    s->ptr += ret;
-    return 0;
-}
-
-static int bc_get_sleb128(BCReaderState *s, int32_t *pval)
-{
-    int ret;
-    ret = get_sleb128(pval, s->ptr, s->buf_end);
-    if (unlikely(ret < 0))
-        return bc_read_error_end(s);
-    s->ptr += ret;
-    return 0;
-}
-
-/* XXX: used to read an `int` with a positive value */
-static int bc_get_leb128_int(BCReaderState *s, int *pval)
-{
-    return bc_get_leb128(s, (uint32_t *)pval);
-}
-
-static int bc_get_leb128_u16(BCReaderState *s, uint16_t *pval)
-{
-    uint32_t val;
-    if (bc_get_leb128(s, &val)) {
-        *pval = 0;
-        return -1;
-    }
-    *pval = val;
-    return 0;
-}
-
-static int bc_get_buf(BCReaderState *s, uint8_t *buf, uint32_t buf_len)
-{
-    if (buf_len != 0) {
-        if (unlikely(!buf || s->buf_end - s->ptr < buf_len))
-            return bc_read_error_end(s);
-        memcpy(buf, s->ptr, buf_len);
-        s->ptr += buf_len;
-    }
-    return 0;
-}
-
-static int bc_idx_to_atom(BCReaderState *s, JSAtom *patom, uint32_t idx)
-{
-    JSAtom atom;
-
-    if (__JS_AtomIsTaggedInt(idx)) {
-        atom = idx;
-    } else if (idx < s->first_atom) {
-        atom = JS_DupAtom(s->ctx, idx);
-    } else {
-        idx -= s->first_atom;
-        if (idx >= s->idx_to_atom_count) {
-            JS_ThrowSyntaxError(s->ctx, "invalid atom index (pos=%u)",
-                                (unsigned int)(s->ptr - s->buf_start));
-            *patom = JS_ATOM_NULL;
-            return s->error_state = -1;
-        }
-        atom = JS_DupAtom(s->ctx, s->idx_to_atom[idx]);
-    }
-    *patom = atom;
-    return 0;
-}
-
-static int bc_get_atom(BCReaderState *s, JSAtom *patom)
-{
-    uint32_t v;
-    if (bc_get_leb128(s, &v))
-        return -1;
-    if (v & 1) {
-        *patom = __JS_AtomFromUInt32(v >> 1);
-        return 0;
-    } else {
-        return bc_idx_to_atom(s, patom, v >> 1);
-    }
-}
-
-static JSString *JS_ReadString(BCReaderState *s)
-{
-    uint32_t len;
-    size_t size;
-    BOOL is_wide_char;
-    JSString *p;
-
-    if (bc_get_leb128(s, &len))
-        return NULL;
-    is_wide_char = len & 1;
-    len >>= 1;
-    p = js_alloc_string(s->ctx, len, is_wide_char);
-    if (!p) {
-        s->error_state = -1;
-        return NULL;
-    }
-    size = (size_t)len << is_wide_char;
-    if ((s->buf_end - s->ptr) < size) {
-        bc_read_error_end(s);
-        js_free_string(s->ctx->rt, p);
-        return NULL;
-    }
-    memcpy(p->u.str8, s->ptr, size);
-    s->ptr += size;
-    if (!is_wide_char) {
-        p->u.str8[size] = '\0'; /* add the trailing zero for 8 bit strings */
-    }
-#ifdef DUMP_READ_OBJECT
-    bc_read_trace(s, "string: "); JS_DumpString(s->ctx->rt, p); printf("\n");
-#endif
-    return p;
-}
-
-static uint32_t bc_get_flags(uint32_t flags, int *pidx, int n)
-{
-    uint32_t val;
-    /* XXX: this does not work for n == 32 */
-    val = (flags >> *pidx) & ((1U << n) - 1);
-    *pidx += n;
-    return val;
-}
-
-static int JS_ReadFunctionBytecode(BCReaderState *s, JSFunctionBytecode *b,
-                                   int byte_code_offset, uint32_t bc_len)
-{
-    uint8_t *bc_buf;
-    int pos, len, op;
-    JSAtom atom;
-    uint32_t idx;
-
-    if (s->is_rom_data) {
-        /* directly use the input buffer */
-        if (unlikely(s->buf_end - s->ptr < bc_len))
-            return bc_read_error_end(s);
-        bc_buf = (uint8_t *)s->ptr;
-        s->ptr += bc_len;
-    } else {
-        bc_buf = (void *)((uint8_t*)b + byte_code_offset);
-        if (bc_get_buf(s, bc_buf, bc_len))
-            return -1;
-    }
-    b->byte_code_buf = bc_buf;
-
-    pos = 0;
-    while (pos < bc_len) {
-        op = bc_buf[pos];
-        len = short_opcode_info(op).size;
-        switch(short_opcode_info(op).fmt) {
-        case OP_FMT_atom:
-        case OP_FMT_atom_u8:
-        case OP_FMT_atom_u16:
-        case OP_FMT_atom_label_u8:
-        case OP_FMT_atom_label_u16:
-            idx = get_u32(bc_buf + pos + 1);
-            if (s->is_rom_data) {
-                /* just increment the reference count of the atom */
-                JS_DupAtom(s->ctx, (JSAtom)idx);
-            } else {
-                if (bc_idx_to_atom(s, &atom, idx)) {
-                    /* Note: the atoms will be freed up to this position */
-                    b->byte_code_len = pos;
-                    return -1;
-                }
-                put_u32(bc_buf + pos + 1, atom);
-#ifdef DUMP_READ_OBJECT
-                bc_read_trace(s, "at %d, fixup atom: ", pos + 1); print_atom(s->ctx, atom); printf("\n");
-#endif
-            }
-            break;
-        default:
-            break;
-        }
-        pos += len;
-    }
-    return 0;
-}
-
-static JSValue JS_ReadObjectRec(BCReaderState *s)
-{
-    JSContext *ctx = s->ctx;
-    uint8_t tag;
-    JSValue obj = JS_UNDEFINED;
-    JSModuleDef *m = NULL;
-
-    if (bc_get_u8(s, &tag))
-        return JS_EXCEPTION;
-
-    switch(tag) {
-    case BC_TAG_NULL:
-        bc_read_trace(s, "null\n");
-        obj = JS_NULL;
-        break;
-    case BC_TAG_UNDEFINED:
-        bc_read_trace(s, "undefined\n");
-        obj = JS_UNDEFINED;
-        break;
-    case BC_TAG_BOOL_FALSE:
-    case BC_TAG_BOOL_TRUE:
-        bc_read_trace(s, "%s\n", bc_tag_str[tag]);
-        obj = JS_NewBool(ctx, tag - BC_TAG_BOOL_FALSE);
-        break;
-    case BC_TAG_INT32:
-        {
-            int32_t val;
-            if (bc_get_sleb128(s, &val))
-                return JS_EXCEPTION;
-            bc_read_trace(s, "int32 %d\n", val);
-            obj = JS_NewInt32(ctx, val);
-        }
-        break;
-    case BC_TAG_FLOAT64:
-        {
-            JSFloat64Union u;
-            if (bc_get_u64(s, &u.u64))
-                return JS_EXCEPTION;
-            bc_read_trace(s, "float64 %g\n", u.d);
-            obj = __JS_NewFloat64(ctx, u.d);
-        }
-        break;
-    case BC_TAG_STRING:
-        {
-            JSString *p;
-            p = JS_ReadString(s);
-            if (!p)
-                return JS_EXCEPTION;
-            obj = JS_MKPTR(JS_TAG_STRING, p);
-        }
-        break;
-    case BC_TAG_FUNCTION_BYTECODE:
-        {
-            JSFunctionBytecode bc, *b;
-            uint16_t v16;
-            uint8_t v8;
-            int idx, i, local_count;
-            int function_size, cpool_offset, byte_code_offset;
-            int closure_var_offset, vardefs_offset;
-
-            if (!s->allow_bytecode)
-                goto invalid_tag;
-            bc_read_trace(s, "%s {\n", bc_tag_str[tag]);
-
-            memset(&bc, 0, sizeof(bc));
-            bc.header.ref_count = 1;
-            //bc.gc_header.mark = 0;
-
-            if (bc_get_u16(s, &v16))
-                goto fail;
-            idx = 0;
-            bc.has_prototype = bc_get_flags(v16, &idx, 1);
-            bc.has_simple_parameter_list = bc_get_flags(v16, &idx, 1);
-            bc.is_derived_class_constructor = bc_get_flags(v16, &idx, 1);
-            bc.need_home_object = bc_get_flags(v16, &idx, 1);
-            bc.func_kind = bc_get_flags(v16, &idx, 2);
-            bc.new_target_allowed = bc_get_flags(v16, &idx, 1);
-            bc.super_call_allowed = bc_get_flags(v16, &idx, 1);
-            bc.super_allowed = bc_get_flags(v16, &idx, 1);
-            bc.arguments_allowed = bc_get_flags(v16, &idx, 1);
-            bc.has_debug = bc_get_flags(v16, &idx, 1);
-            bc.read_only_bytecode = s->is_rom_data;
-            if (bc_get_u8(s, &v8))
-                goto fail;
-            bc.js_mode = v8;
-            if (bc_get_atom(s, &bc.func_name))  //@ atom leak if failure
-                goto fail;
-            if (bc_get_leb128_u16(s, &bc.arg_count))
-                goto fail;
-            if (bc_get_leb128_u16(s, &bc.var_count))
-                goto fail;
-            if (bc_get_leb128_u16(s, &bc.defined_arg_count))
-                goto fail;
-            if (bc_get_leb128_u16(s, &bc.stack_size))
-                goto fail;
-            if (bc_get_leb128_int(s, &bc.closure_var_count))
-                goto fail;
-            if (bc_get_leb128_int(s, &bc.cpool_count))
-                goto fail;
-            if (bc_get_leb128_int(s, &bc.byte_code_len))
-                goto fail;
-            if (bc_get_leb128_int(s, &local_count))
-                goto fail;
-
-            if (bc.has_debug) {
-                function_size = sizeof(*b);
-            } else {
-                function_size = offsetof(JSFunctionBytecode, debug);
-            }
-            cpool_offset = function_size;
-            function_size += bc.cpool_count * sizeof(*bc.cpool);
-            vardefs_offset = function_size;
-            function_size += local_count * sizeof(*bc.vardefs);
-            closure_var_offset = function_size;
-            function_size += bc.closure_var_count * sizeof(*bc.closure_var);
-            byte_code_offset = function_size;
-            if (!bc.read_only_bytecode) {
-                function_size += bc.byte_code_len;
-            }
-
-            b = js_mallocz(ctx, function_size);
-            if (!b)
-                return JS_EXCEPTION;
-
-            memcpy(b, &bc, offsetof(JSFunctionBytecode, debug));
-            obj = JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b);
-
-#ifdef DUMP_READ_OBJECT
-            bc_read_trace(s, "name: "); print_atom(s->ctx, b->func_name); printf("\n");
-#endif
-            bc_read_trace(s, "args=%d vars=%d defargs=%d closures=%d cpool=%d\n",
-                          b->arg_count, b->var_count, b->defined_arg_count,
-                          b->closure_var_count, b->cpool_count);
-            bc_read_trace(s, "stack=%d bclen=%d locals=%d\n",
-                          b->stack_size, b->byte_code_len, local_count);
-
-            if (local_count != 0) {
-                bc_read_trace(s, "vars {\n");
-                b->vardefs = (void *)((uint8_t*)b + vardefs_offset);
-                for(i = 0; i < local_count; i++) {
-                    JSVarDef *vd = &b->vardefs[i];
-                    if (bc_get_atom(s, &vd->var_name))
-                        goto fail;
-                    if (bc_get_leb128_int(s, &vd->scope_level))
-                        goto fail;
-                    if (bc_get_leb128_int(s, &vd->scope_next))
-                        goto fail;
-                    vd->scope_next--;
-                    if (bc_get_u8(s, &v8))
-                        goto fail;
-                    idx = 0;
-                    vd->var_kind = bc_get_flags(v8, &idx, 3);
-                    vd->is_function = bc_get_flags(v8, &idx, 1);
-                    vd->is_func_var = bc_get_flags(v8, &idx, 1);
-                    vd->is_const = bc_get_flags(v8, &idx, 1);
-                    vd->is_lexical = bc_get_flags(v8, &idx, 1);
-                    vd->is_captured = bc_get_flags(v8, &idx, 1);
-#ifdef DUMP_READ_OBJECT
-                    bc_read_trace(s, "name: "); print_atom(s->ctx, vd->var_name); printf("\n");
-#endif
-                }
-                bc_read_trace(s, "}\n");
-            }
-            if (b->closure_var_count != 0) {
-                bc_read_trace(s, "closure vars {\n");
-                b->closure_var = (void *)((uint8_t*)b + closure_var_offset);
-                for(i = 0; i < b->closure_var_count; i++) {
-                    JSClosureVar *cv = &b->closure_var[i];
-                    int var_idx;
-                    if (bc_get_atom(s, &cv->var_name))
-                        goto fail;
-                    if (bc_get_leb128_int(s, &var_idx))
-                        goto fail;
-                    cv->var_idx = var_idx;
-                    if (bc_get_u8(s, &v8))
-                        goto fail;
-                    idx = 0;
-                    cv->is_local = bc_get_flags(v8, &idx, 1);
-                    cv->is_arg = bc_get_flags(v8, &idx, 1);
-                    cv->is_const = bc_get_flags(v8, &idx, 1);
-                    cv->is_lexical = bc_get_flags(v8, &idx, 1);
-                    cv->var_kind = bc_get_flags(v8, &idx, 3);
-#ifdef DUMP_READ_OBJECT
-                    bc_read_trace(s, "name: "); print_atom(s->ctx, cv->var_name); printf("\n");
-#endif
-                }
-                bc_read_trace(s, "}\n");
-            }
-            {
-                bc_read_trace(s, "bytecode {\n");
-                if (JS_ReadFunctionBytecode(s, b, byte_code_offset, b->byte_code_len))
-                    goto fail;
-                bc_read_trace(s, "}\n");
-            }
-            if (b->has_debug) {
-                /* read optional debug information */
-                bc_read_trace(s, "debug {\n");
-                if (bc_get_atom(s, &b->debug.filename))
-                    goto fail;
-                if (bc_get_leb128_int(s, &b->debug.line_num))
-                    goto fail;
-                if (bc_get_leb128_int(s, &b->debug.pc2line_len))
-                    goto fail;
-                if (b->debug.pc2line_len) {
-                    b->debug.pc2line_buf = js_mallocz(ctx, b->debug.pc2line_len);
-                    if (!b->debug.pc2line_buf)
-                        goto fail;
-                    if (bc_get_buf(s, b->debug.pc2line_buf, b->debug.pc2line_len))
-                        goto fail;
-                }
-#ifdef DUMP_READ_OBJECT
-                bc_read_trace(s, "filename: "); print_atom(s->ctx, b->debug.filename); printf("\n");
-#endif
-                bc_read_trace(s, "}\n");
-            }
-            if (b->cpool_count != 0) {
-                bc_read_trace(s, "cpool {\n");
-                b->cpool = (void *)((uint8_t*)b + cpool_offset);
-                for(i = 0; i < b->cpool_count; i++) {
-                    JSValue val;
-                    val = JS_ReadObjectRec(s);
-                    if (JS_IsException(val))
-                        goto fail;
-                    b->cpool[i] = val;
-                }
-                bc_read_trace(s, "}\n");
-            }
-            bc_read_trace(s, "}\n");
-        }
-        break;
-    case BC_TAG_MODULE:
-        {
-            JSAtom module_name;
-            int i;
-            uint8_t v8;
-
-            if (!s->allow_bytecode)
-                goto invalid_tag;
-            bc_read_trace(s, "%s {\n", bc_tag_str[tag]);
-            if (bc_get_atom(s, &module_name))
-                goto fail;
-#ifdef DUMP_READ_OBJECT
-            bc_read_trace(s, "name: "); print_atom(s->ctx, module_name); printf("\n");
-#endif
-            m = js_new_module_def(ctx, module_name);
-            if (!m)
-                goto fail;
-            obj = JS_DupValue(ctx, JS_MKPTR(JS_TAG_MODULE, m));
-            if (bc_get_leb128_int(s, &m->req_module_entries_count))
-                goto fail;
-            if (m->req_module_entries_count != 0) {
-                m->req_module_entries_size = m->req_module_entries_count;
-                m->req_module_entries = js_mallocz(ctx, sizeof(m->req_module_entries[0]) * m->req_module_entries_size);
-                if (!m->req_module_entries)
-                    goto fail;
-                for(i = 0; i < m->req_module_entries_count; i++) {
-                    JSReqModuleEntry *rme = &m->req_module_entries[i];
-                    if (bc_get_atom(s, &rme->module_name))
-                        goto fail;
-                }
-            }
-
-            if (bc_get_leb128_int(s, &m->export_entries_count))
-                goto fail;
-            if (m->export_entries_count != 0) {
-                m->export_entries_size = m->export_entries_count;
-                m->export_entries = js_mallocz(ctx, sizeof(m->export_entries[0]) * m->export_entries_size);
-                if (!m->export_entries)
-                    goto fail;
-                for(i = 0; i < m->export_entries_count; i++) {
-                    JSExportEntry *me = &m->export_entries[i];
-                    if (bc_get_u8(s, &v8))
-                        goto fail;
-                    me->export_type = v8;
-                    if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
-                        if (bc_get_leb128_int(s, &me->u.local.var_idx))
-                            goto fail;
-                    } else {
-                        if (bc_get_leb128_int(s, &me->u.req_module_idx))
-                            goto fail;
-                        if (bc_get_atom(s, &me->local_name))
-                            goto fail;
-                    }
-                    if (bc_get_atom(s, &me->export_name))
-                        goto fail;
-                }
-            }
-
-            if (bc_get_leb128_int(s, &m->star_export_entries_count))
-                goto fail;
-            if (m->star_export_entries_count != 0) {
-                m->star_export_entries_size = m->star_export_entries_count;
-                m->star_export_entries = js_mallocz(ctx, sizeof(m->star_export_entries[0]) * m->star_export_entries_size);
-                if (!m->star_export_entries)
-                    goto fail;
-                for(i = 0; i < m->star_export_entries_count; i++) {
-                    JSStarExportEntry *se = &m->star_export_entries[i];
-                    if (bc_get_leb128_int(s, &se->req_module_idx))
-                        goto fail;
-                }
-            }
-
-            if (bc_get_leb128_int(s, &m->import_entries_count))
-                goto fail;
-            if (m->import_entries_count != 0) {
-                m->import_entries_size = m->import_entries_count;
-                m->import_entries = js_mallocz(ctx, sizeof(m->import_entries[0]) * m->import_entries_size);
-                if (!m->import_entries)
-                    goto fail;
-                for(i = 0; i < m->import_entries_count; i++) {
-                    JSImportEntry *mi = &m->import_entries[i];
-                    if (bc_get_leb128_int(s, &mi->var_idx))
-                        goto fail;
-                    if (bc_get_atom(s, &mi->import_name))
-                        goto fail;
-                    if (bc_get_leb128_int(s, &mi->req_module_idx))
-                        goto fail;
-                }
-            }
-
-            m->func_obj = JS_ReadObjectRec(s);
-            if (JS_IsException(m->func_obj))
-                goto fail;
-            bc_read_trace(s, "}\n");
-        }
-        break;
-    case BC_TAG_OBJECT:
-        {
-            uint32_t prop_count, i;
-            JSAtom atom;
-            JSValue val;
-            int ret;
-
-            bc_read_trace(s, "%s {\n", bc_tag_str[tag]);
-
-            obj = JS_NewObject(ctx);
-            if (bc_get_leb128(s, &prop_count))
-                goto fail;
-            for(i = 0; i < prop_count; i++) {
-                if (bc_get_atom(s, &atom))
-                    goto fail;
-#ifdef DUMP_READ_OBJECT
-                bc_read_trace(s, "propname: "); print_atom(s->ctx, atom); printf("\n");
-#endif
-                val = JS_ReadObjectRec(s);
-                if (JS_IsException(val)) {
-                    JS_FreeAtom(ctx, atom);
-                    goto fail;
-                }
-                ret = JS_DefinePropertyValue(ctx, obj, atom, val, JS_PROP_C_W_E);
-                JS_FreeAtom(ctx, atom);
-                if (ret < 0)
-                    goto fail;
-            }
-            bc_read_trace(s, "}\n");
-        }
-        break;
-    case BC_TAG_ARRAY:
-    case BC_TAG_TEMPLATE_OBJECT:
-        {
-            uint32_t len, i;
-            JSValue val;
-            int ret, prop_flags;
-            BOOL is_template;
-
-            bc_read_trace(s, "%s {\n", bc_tag_str[tag]);
-
-            obj = JS_NewArray(ctx);
-            is_template = (tag == BC_TAG_TEMPLATE_OBJECT);
-            if (bc_get_leb128(s, &len))
-                goto fail;
-            for(i = 0; i < len; i++) {
-                val = JS_ReadObjectRec(s);
-                if (JS_IsException(val))
-                    goto fail;
-                if (is_template)
-                    prop_flags = JS_PROP_ENUMERABLE;
-                else
-                    prop_flags = JS_PROP_C_W_E;
-                ret = JS_DefinePropertyValueUint32(ctx, obj, i, val,
-                                                   prop_flags);
-                if (ret < 0)
-                    goto fail;
-            }
-            if (is_template) {
-                val = JS_ReadObjectRec(s);
-                if (JS_IsException(val))
-                    goto fail;
-                if (!JS_IsUndefined(val)) {
-                    ret = JS_DefinePropertyValue(ctx, obj, JS_ATOM_raw, val, 0);
-                    if (ret < 0)
-                        goto fail;
-                }
-                JS_PreventExtensions(ctx, obj);
-            }
-            bc_read_trace(s, "}\n");
-        }
-        break;
-#ifdef CONFIG_BIGNUM
-    case BC_TAG_BIG_INT:
-    case BC_TAG_BIG_FLOAT:
-        {
-            uint8_t sign, v8;
-            int32_t e;
-            uint32_t len;
-            limb_t l, i, n;
-            JSBigFloat *p;
-            bf_t *a;
-
-            bc_read_trace(s, "%s {\n", bc_tag_str[tag]);
-
-            if (bc_get_leb128(s, &len))
-                goto fail;
-            sign = len & 1;
-            len >>= 1;
-            p = js_new_bf(s->ctx);
-            if (!p)
-                goto fail;
-            if (tag == BC_TAG_BIG_INT)
-                obj = JS_MKPTR(JS_TAG_BIG_INT, p);
-            else
-                obj = JS_MKPTR(JS_TAG_BIG_FLOAT, p);
-            l = (len + sizeof(limb_t) - 1) / sizeof(limb_t);
-            a = &p->num;
-            bf_resize(a, l);
-            a->sign = sign;
-            if (len == 0) {
-                if (tag == BC_TAG_BIG_INT) {
-                    a->expn = BF_EXP_ZERO;
-                } else {
-                    if (bc_get_u8(s, &v8))
-                        goto fail;
-                    switch(v8) {
-                    case 0:
-                        a->expn = BF_EXP_ZERO;
-                        break;
-                    case 1:
-                        a->expn = BF_EXP_INF;
-                        break;
-                    default:
-                    case 2:
-                        a->expn = BF_EXP_NAN;
-                        break;
-                    }
-                }
-            } else {
-                n = len & (sizeof(limb_t) - 1);
-                if (n != 0) {
-                    limb_t v;
-                    v = 0;
-                    for(i = 0; i < n; i++) {
-                        if (bc_get_u8(s, &v8))
-                            goto fail;
-                        v |= (limb_t)v8 << ((sizeof(limb_t) - n + i) * 8);
-                    }
-                    a->tab[0] = v;
-                    i = 1;
-                } else {
-                    i = 0;
-                }
-                for(; i < l; i++) {
-                    limb_t v;
-#if LIMB_BITS == 32
-                    if (bc_get_u32(s, &v))
-                        goto fail;
-#ifdef WORDS_BIGENDIAN
-                    v = bswap32(v);
-#endif
-#else
-                    if (bc_get_u64(s, &v))
-                        goto fail;
-#ifdef WORDS_BIGENDIAN
-                    v = bswap64(v);
-#endif
-#endif
-                    a->tab[i] = v;
-                }
-                if (bc_get_sleb128(s, &e))
-                    goto fail;
-                a->expn = e;
-            }
-            bc_read_trace(s, "}\n");
-        }
-        break;
-#endif
-    default:
-    invalid_tag:
-        return JS_ThrowSyntaxError(ctx, "invalid tag (tag=%d pos=%u)",
-                                   tag, (unsigned int)(s->ptr - s->buf_start));
-    }
-    return obj;
- fail:
-    if (m) {
-        js_free_module_def(ctx, m);
-    }
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static int JS_ReadObjectAtoms(BCReaderState *s)
-{
-    uint8_t v8;
-    JSString *p;
-    int i;
-    JSAtom atom;
-
-    if (bc_get_u8(s, &v8))
-        return -1;
-    /* XXX: could support byte swapped input */
-    if (v8 != BC_VERSION) {
-        JS_ThrowSyntaxError(s->ctx, "invalid version (%d expected=%d)",
-                            v8, BC_VERSION);
-        return -1;
-    }
-    if (bc_get_leb128(s, &s->idx_to_atom_count))
-        return -1;
-
-    bc_read_trace(s, "%d atom indexes {\n", s->idx_to_atom_count);
-
-    if (s->idx_to_atom_count != 0) {
-        s->idx_to_atom = js_mallocz(s->ctx, s->idx_to_atom_count *
-                                    sizeof(s->idx_to_atom[0]));
-        if (!s->idx_to_atom)
-            return s->error_state = -1;
-    }
-    for(i = 0; i < s->idx_to_atom_count; i++) {
-        p = JS_ReadString(s);
-        if (!p)
-            return -1;
-        atom = JS_NewAtomStr(s->ctx, p);
-        if (atom == JS_ATOM_NULL)
-            return s->error_state = -1;
-        s->idx_to_atom[i] = atom;
-        if (s->is_rom_data && (atom != (i + s->first_atom)))
-            s->is_rom_data = FALSE; /* atoms must be relocated */
-    }
-    bc_read_trace(s, "}\n");
-    return 0;
-}
-
-static void bc_reader_free(BCReaderState *s)
-{
-    int i;
-    if (s->idx_to_atom) {
-        for(i = 0; i < s->idx_to_atom_count; i++) {
-            JS_FreeAtom(s->ctx, s->idx_to_atom[i]);
-        }
-        js_free(s->ctx, s->idx_to_atom);
-    }
-}
-
-JSValue JS_ReadObject(JSContext *ctx, const uint8_t *buf, size_t buf_len,
-                      int flags)
-{
-    BCReaderState ss, *s = &ss;
-    JSValue obj;
-
-    ctx->binary_object_count += 1;
-    ctx->binary_object_size += buf_len;
-
-    memset(s, 0, sizeof(*s));
-    s->ctx = ctx;
-    s->buf_start = buf;
-    s->buf_end = buf + buf_len;
-    s->ptr = buf;
-    s->allow_bytecode = ((flags & JS_READ_OBJ_BYTECODE) != 0);
-    s->is_rom_data = ((flags & JS_READ_OBJ_ROM_DATA) != 0);
-    if (s->allow_bytecode)
-        s->first_atom = JS_ATOM_END;
-    else
-        s->first_atom = 1;
-    if (JS_ReadObjectAtoms(s)) {
-        obj = JS_EXCEPTION;
-    } else {
-        obj = JS_ReadObjectRec(s);
-    }
-    bc_reader_free(s);
-    return obj;
-}
-
-/*******************************************************************/
-/* runtime functions & objects */
-
-static JSValue js_string_constructor(JSContext *ctx, JSValueConst this_val,
-                                     int argc, JSValueConst *argv);
-static JSValue js_boolean_constructor(JSContext *ctx, JSValueConst this_val,
-                                      int argc, JSValueConst *argv);
-static JSValue js_number_constructor(JSContext *ctx, JSValueConst this_val,
-                                     int argc, JSValueConst *argv);
-
-static int check_function(JSContext *ctx, JSValueConst obj)
-{
-    if (likely(JS_IsFunction(ctx, obj)))
-        return 0;
-    JS_ThrowTypeError(ctx, "not a function");
-    return -1;
-}
-
-static int check_exception_free(JSContext *ctx, JSValue obj)
-{
-    JS_FreeValue(ctx, obj);
-    return JS_IsException(obj);
-}
-
-static JSAtom find_atom(JSContext *ctx, const char *name)
-{
-    JSAtom atom;
-    int len;
-
-    if (*name == '[') {
-        name++;
-        len = strlen(name) - 1;
-        /* We assume 8 bit non null strings, which is the case for these
-           symbols */
-        for(atom = JS_ATOM_Symbol_toPrimitive; atom < JS_ATOM_END; atom++) {
-            JSAtomStruct *p = ctx->rt->atom_array[atom];
-            JSString *str = p;
-            if (str->len == len && !memcmp(str->u.str8, name, len))
-                return JS_DupAtom(ctx, atom);
-        }
-        abort();
-    } else {
-        atom = JS_NewAtom(ctx, name);
-    }
-    return atom;
-}
-
-static int JS_InstantiateFunctionListItem(JSContext *ctx, JSObject *p,
-                                          JSAtom atom, void *opaque)
-{
-    const JSCFunctionListEntry *e = opaque;
-    JSValueConst obj = JS_MKPTR(JS_TAG_OBJECT, p);
-    JSValue val;
-    int prop_flags = e->prop_flags;
-
-    switch(e->def_type) {
-    case JS_DEF_ALIAS:
-        {
-            JSAtom atom1 = find_atom(ctx, e->u.alias.name);
-            switch (e->u.alias.base) {
-            case -1:
-                val = JS_GetProperty(ctx, obj, atom1);
-                break;
-            case 0:
-                val = JS_GetProperty(ctx, ctx->global_obj, atom1);
-                break;
-            case 1:
-                val = JS_GetProperty(ctx, ctx->class_proto[JS_CLASS_ARRAY], atom1);
-                break;
-            default:
-                abort();
-            }
-            JS_FreeAtom(ctx, atom1);
-            goto setval;
-        }
-    case JS_DEF_CFUNC:
-        val = JS_NewCFunction2(ctx, e->u.func.cfunc.generic,
-                               e->name, e->u.func.length, e->u.func.cproto, e->magic);
-    setval:
-        if (atom == JS_ATOM_Symbol_toPrimitive) {
-            /* Symbol.toPrimitive functions are not writable */
-            prop_flags = JS_PROP_CONFIGURABLE;
-        } else if (atom == JS_ATOM_Symbol_hasInstance) {
-            /* Function.prototype[Symbol.hasInstance] is not writable nor configurable */
-            prop_flags = 0;
-        }
-        break;
-    case JS_DEF_CGETSET:
-    case JS_DEF_CGETSET_MAGIC:
-        {
-            JSValue getter, setter;
-            char buf[64];
-
-            getter = JS_UNDEFINED;
-            if (e->u.getset.get.generic) {
-                snprintf(buf, sizeof(buf), "get %s", e->name);
-                getter = JS_NewCFunction2(ctx, e->u.getset.get.generic,
-                                          buf, 0, e->def_type == JS_DEF_CGETSET_MAGIC ? JS_CFUNC_getter_magic : JS_CFUNC_getter,
-                                          e->magic);
-            }
-            setter = JS_UNDEFINED;
-            if (e->u.getset.set.generic) {
-                snprintf(buf, sizeof(buf), "set %s", e->name);
-                setter = JS_NewCFunction2(ctx, e->u.getset.set.generic,
-                                          buf, 1, e->def_type == JS_DEF_CGETSET_MAGIC ? JS_CFUNC_setter_magic : JS_CFUNC_setter,
-                                          e->magic);
-            }
-            JS_DefinePropertyGetSet(ctx, obj, atom, getter, setter, prop_flags);
-            return 0;
-        }
-        break;
-    case JS_DEF_PROP_STRING:
-        val = JS_NewAtomString(ctx, e->u.str);
-        break;
-    case JS_DEF_PROP_INT32:
-        val = JS_NewInt32(ctx, e->u.i32);
-        break;
-    case JS_DEF_PROP_INT64:
-        val = JS_NewInt64(ctx, e->u.i64);
-        break;
-    case JS_DEF_PROP_DOUBLE:
-        val = __JS_NewFloat64(ctx, e->u.f64);
-        break;
-    case JS_DEF_PROP_UNDEFINED:
-        val = JS_UNDEFINED;
-        break;
-    case JS_DEF_OBJECT:
-        val = JS_NewObject(ctx);
-        JS_SetPropertyFunctionList(ctx, val, e->u.prop_list.tab, e->u.prop_list.len);
-        break;
-    default:
-        abort();
-    }
-    JS_DefinePropertyValue(ctx, obj, atom, val, prop_flags);
-    return 0;
-}
-
-void JS_SetPropertyFunctionList(JSContext *ctx, JSValueConst obj,
-                                const JSCFunctionListEntry *tab, int len)
-{
-    int i, prop_flags;
-
-    for (i = 0; i < len; i++) {
-        const JSCFunctionListEntry *e = &tab[i];
-        JSAtom atom = find_atom(ctx, e->name);
-
-        switch (e->def_type) {
-        case JS_DEF_CFUNC:
-        case JS_DEF_CGETSET:
-        case JS_DEF_CGETSET_MAGIC:
-        case JS_DEF_PROP_STRING:
-        case JS_DEF_ALIAS:
-        case JS_DEF_OBJECT:
-            prop_flags = JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE | (e->prop_flags & JS_PROP_ENUMERABLE);
-            JS_DefineAutoInitProperty(ctx, obj, atom,
-                                      JS_InstantiateFunctionListItem,
-                                      (void *)e, prop_flags);
-            break;
-        case JS_DEF_PROP_INT32:
-        case JS_DEF_PROP_INT64:
-        case JS_DEF_PROP_DOUBLE:
-        case JS_DEF_PROP_UNDEFINED:
-            {
-                JSObject *p = JS_VALUE_GET_OBJ(obj);
-                JS_InstantiateFunctionListItem(ctx, p, atom, (void *)e);
-            }
-            break;
-        default:
-            abort();
-        }
-        JS_FreeAtom(ctx, atom);
-    }
-}
-
-int JS_AddModuleExportList(JSContext *ctx, JSModuleDef *m,
-                           const JSCFunctionListEntry *tab, int len)
-{
-    int i;
-    for(i = 0; i < len; i++) {
-        if (JS_AddModuleExport(ctx, m, tab[i].name))
-            return -1;
-    }
-    return 0;
-}
-
-int JS_SetModuleExportList(JSContext *ctx, JSModuleDef *m,
-                           const JSCFunctionListEntry *tab, int len)
-{
-    int i;
-    JSValue val;
-
-    for(i = 0; i < len; i++) {
-        const JSCFunctionListEntry *e = &tab[i];
-        switch(e->def_type) {
-        case JS_DEF_CFUNC:
-            val = JS_NewCFunction2(ctx, e->u.func.cfunc.generic,
-                                   e->name, e->u.func.length, e->u.func.cproto, e->magic);
-            break;
-        case JS_DEF_PROP_STRING:
-            val = JS_NewString(ctx, e->u.str);
-            break;
-        case JS_DEF_PROP_INT32:
-            val = JS_NewInt32(ctx, e->u.i32);
-            break;
-        case JS_DEF_PROP_INT64:
-            val = JS_NewInt64(ctx, e->u.i64);
-            break;
-        case JS_DEF_PROP_DOUBLE:
-            val = __JS_NewFloat64(ctx, e->u.f64);
-            break;
-        default:
-            abort();
-        }
-        if (JS_SetModuleExport(ctx, m, e->name, val))
-            return -1;
-    }
-    return 0;
-}
-
-/* Note: 'func_obj' is not necessarily a constructor */
-static void JS_SetConstructor2(JSContext *ctx,
-                               JSValueConst func_obj,
-                               JSValueConst proto,
-                               int proto_flags, int ctor_flags)
-{
-    JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_prototype,
-                           JS_DupValue(ctx, proto), proto_flags);
-    JS_DefinePropertyValue(ctx, proto, JS_ATOM_constructor,
-                           JS_DupValue(ctx, func_obj),
-                           ctor_flags);
-    set_cycle_flag(ctx, func_obj);
-    set_cycle_flag(ctx, proto);
-}
-
-static void JS_SetConstructor(JSContext *ctx,
-                              JSValueConst func_obj,
-                              JSValueConst proto)
-{
-    JS_SetConstructor2(ctx, func_obj, proto,
-                       0, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-}
-
-static void JS_NewGlobalCConstructor2(JSContext *ctx,
-                                      JSValue func_obj,
-                                      const char *name,
-                                      JSValueConst proto)
-{
-    JS_DefinePropertyValueStr(ctx, ctx->global_obj, name,
-                           JS_DupValue(ctx, func_obj),
-                           JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-    JS_SetConstructor(ctx, func_obj, proto);
-    JS_FreeValue(ctx, func_obj);
-}
-
-static JSValueConst JS_NewGlobalCConstructor(JSContext *ctx, const char *name,
-                                             JSCFunction *func, int length,
-                                             JSValueConst proto)
-{
-    JSValue func_obj;
-    func_obj = JS_NewCFunction2(ctx, func, name, length, JS_CFUNC_constructor_or_func, 0);
-    JS_NewGlobalCConstructor2(ctx, func_obj, name, proto);
-    return func_obj;
-}
-
-static JSValueConst JS_NewGlobalCConstructorOnly(JSContext *ctx, const char *name,
-                                                 JSCFunction *func, int length,
-                                                 JSValueConst proto)
-{
-    JSValue func_obj;
-    func_obj = JS_NewCFunction2(ctx, func, name, length, JS_CFUNC_constructor, 0);
-    JS_NewGlobalCConstructor2(ctx, func_obj, name, proto);
-    return func_obj;
-}
-
-static JSValue js_global_eval(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv)
-{
-    return JS_EvalObject(ctx, ctx->global_obj, argv[0], JS_EVAL_TYPE_INDIRECT, -1);
-}
-
-static JSValue js_global_isNaN(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv)
-{
-    double d;
-
-    /* XXX: does this work for bigfloat? */
-    if (unlikely(JS_ToFloat64(ctx, &d, argv[0])))
-        return JS_EXCEPTION;
-    return JS_NewBool(ctx, isnan(d));
-}
-
-#ifdef CONFIG_BIGNUM
-static BOOL js_number_is_finite(JSContext *ctx, JSValueConst val)
-{
-    BOOL res;
-    uint32_t tag;
-
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_FLOAT64:
-        res = isfinite(JS_VALUE_GET_FLOAT64(val));
-        break;
-    case JS_TAG_BIG_FLOAT:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            res = bf_is_finite(&p->num);
-        }
-        break;
-    default:
-        res = TRUE;
-        break;
-    }
-    return res;
-}
-#endif
-
-static JSValue js_global_isFinite(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    BOOL res;
-#ifdef CONFIG_BIGNUM
-    JSValue val;
-
-    val = JS_ToNumber(ctx, argv[0]);
-    if (JS_IsException(val))
-        return val;
-    res = js_number_is_finite(ctx, val);
-    JS_FreeValue(ctx, val);
-#else
-    double d;
-    if (unlikely(JS_ToFloat64(ctx, &d, argv[0])))
-        return JS_EXCEPTION;
-    res = isfinite(d);
-#endif
-    return JS_NewBool(ctx, res);
-}
-
-/* Object class */
-
-static JSValue JS_ToObject(JSContext *ctx, JSValueConst val)
-{
-    int tag = JS_VALUE_GET_NORM_TAG(val);
-    JSValue obj;
-
-    switch(tag) {
-    default:
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-        return JS_ThrowTypeError(ctx, "cannot convert to object");
-    case JS_TAG_OBJECT:
-    case JS_TAG_EXCEPTION:
-        return JS_DupValue(ctx, val);
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_INT:
-        if (is_bignum_mode(ctx))
-            obj = JS_NewObjectClass(ctx, JS_CLASS_BIG_INT);
-        else
-            obj = JS_NewObjectClass(ctx, JS_CLASS_NUMBER);
-        goto set_value;
-    case JS_TAG_BIG_INT:
-        obj = JS_NewObjectClass(ctx, JS_CLASS_BIG_INT);
-        goto set_value;
-    case JS_TAG_FLOAT64:
-        obj = JS_NewObjectClass(ctx, JS_CLASS_NUMBER);
-        goto set_value;
-    case JS_TAG_BIG_FLOAT:
-        obj = JS_NewObjectClass(ctx, JS_CLASS_BIG_FLOAT);
-        goto set_value;
-#else
-    case JS_TAG_INT:
-    case JS_TAG_FLOAT64:
-        obj = JS_NewObjectClass(ctx, JS_CLASS_NUMBER);
-        goto set_value;
-#endif
-    case JS_TAG_STRING:
-        /* XXX: should call the string constructor */
-        {
-            JSString *p1 = JS_VALUE_GET_STRING(val);
-            obj = JS_NewObjectClass(ctx, JS_CLASS_STRING);
-            JS_DefinePropertyValue(ctx, obj, JS_ATOM_length, JS_NewInt32(ctx, p1->len), 0);
-        }
-        goto set_value;
-    case JS_TAG_BOOL:
-        obj = JS_NewObjectClass(ctx, JS_CLASS_BOOLEAN);
-        goto set_value;
-    case JS_TAG_SYMBOL:
-        obj = JS_NewObjectClass(ctx, JS_CLASS_SYMBOL);
-    set_value:
-        if (!JS_IsException(obj))
-            JS_SetObjectData(ctx, obj, JS_DupValue(ctx, val));
-        return obj;
-    }
-}
-
-static JSValue JS_ToObjectFree(JSContext *ctx, JSValue val)
-{
-    JSValue obj = JS_ToObject(ctx, val);
-    JS_FreeValue(ctx, val);
-    return obj;
-}
-
-static int js_obj_to_desc(JSContext *ctx, JSPropertyDescriptor *d,
-                          JSValueConst desc)
-{
-    JSValue val, getter, setter;
-    int flags;
-
-    if (!JS_IsObject(desc)) {
-        JS_ThrowTypeErrorNotAnObject(ctx);
-        return -1;
-    }
-    flags = 0;
-    val = JS_UNDEFINED;
-    getter = JS_UNDEFINED;
-    setter = JS_UNDEFINED;
-    if (JS_HasProperty(ctx, desc, JS_ATOM_configurable)) {
-        JSValue prop = JS_GetProperty(ctx, desc, JS_ATOM_configurable);
-        if (JS_IsException(prop))
-            goto fail;
-        flags |= JS_PROP_HAS_CONFIGURABLE;
-        if (JS_ToBoolFree(ctx, prop))
-            flags |= JS_PROP_CONFIGURABLE;
-    }
-    if (JS_HasProperty(ctx, desc, JS_ATOM_writable)) {
-        JSValue prop = JS_GetProperty(ctx, desc, JS_ATOM_writable);
-        if (JS_IsException(prop))
-            goto fail;
-        flags |= JS_PROP_HAS_WRITABLE;
-        if (JS_ToBoolFree(ctx, prop))
-            flags |= JS_PROP_WRITABLE;
-    }
-    if (JS_HasProperty(ctx, desc, JS_ATOM_enumerable)) {
-        JSValue prop = JS_GetProperty(ctx, desc, JS_ATOM_enumerable);
-        if (JS_IsException(prop))
-            goto fail;
-        flags |= JS_PROP_HAS_ENUMERABLE;
-        if (JS_ToBoolFree(ctx, prop))
-            flags |= JS_PROP_ENUMERABLE;
-    }
-    if (JS_HasProperty(ctx, desc, JS_ATOM_value)) {
-        flags |= JS_PROP_HAS_VALUE;
-        val = JS_GetProperty(ctx, desc, JS_ATOM_value);
-        if (JS_IsException(val))
-            goto fail;
-    }
-    if (JS_HasProperty(ctx, desc, JS_ATOM_get)) {
-        flags |= JS_PROP_HAS_GET;
-        getter = JS_GetProperty(ctx, desc, JS_ATOM_get);
-        if (JS_IsException(getter) ||
-            !(JS_IsUndefined(getter) || JS_IsFunction(ctx, getter))) {
-            JS_ThrowTypeError(ctx, "invalid getter");
-            goto fail;
-        }
-    }
-    if (JS_HasProperty(ctx, desc, JS_ATOM_set)) {
-        flags |= JS_PROP_HAS_SET;
-        setter = JS_GetProperty(ctx, desc, JS_ATOM_set);
-        if (JS_IsException(setter) ||
-            !(JS_IsUndefined(setter) || JS_IsFunction(ctx, setter))) {
-            JS_ThrowTypeError(ctx, "invalid setter");
-            goto fail;
-        }
-    }
-    if ((flags & (JS_PROP_HAS_SET | JS_PROP_HAS_GET)) &&
-        (flags & (JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE))) {
-        JS_ThrowTypeError(ctx, "cannot have setter/getter and value or writable");
-        goto fail;
-    }
-    d->flags = flags;
-    d->value = val;
-    d->getter = getter;
-    d->setter = setter;
-    return 0;
- fail:
-    JS_FreeValue(ctx, val);
-    JS_FreeValue(ctx, getter);
-    JS_FreeValue(ctx, setter);
-    return -1;
-}
-
-static __exception int JS_DefinePropertyDesc(JSContext *ctx, JSValueConst obj,
-                                             JSAtom prop, JSValueConst desc,
-                                             int flags)
-{
-    JSPropertyDescriptor d;
-    int ret;
-
-    if (js_obj_to_desc(ctx, &d, desc) < 0)
-        return -1;
-
-    ret = JS_DefineProperty(ctx, obj, prop,
-                            d.value, d.getter, d.setter, d.flags | flags);
-    js_free_desc(ctx, &d);
-    return ret;
-}
-
-static __exception int JS_ObjectDefineProperties(JSContext *ctx,
-                                                 JSValueConst obj,
-                                                 JSValueConst properties)
-{
-    JSValue props, desc;
-    JSObject *p;
-    JSPropertyEnum *atoms;
-    uint32_t len, i;
-    int ret = -1;
-
-    if (!JS_IsObject(obj)) {
-        JS_ThrowTypeErrorNotAnObject(ctx);
-        return -1;
-    }
-    desc = JS_UNDEFINED;
-    props = JS_ToObject(ctx, properties);
-    if (JS_IsException(props))
-        return -1;
-    p = JS_VALUE_GET_OBJ(props);
-    if (JS_GetOwnPropertyNamesInternal(ctx, &atoms, &len, p, JS_GPN_ENUM_ONLY | JS_GPN_STRING_MASK) < 0)
-        goto exception;
-    for(i = 0; i < len; i++) {
-        JS_FreeValue(ctx, desc);
-        desc = JS_GetProperty(ctx, props, atoms[i].atom);
-        if (JS_IsException(desc))
-            goto exception;
-        if (JS_DefinePropertyDesc(ctx, obj, atoms[i].atom, desc, JS_PROP_THROW) < 0)
-            goto exception;
-    }
-    ret = 0;
-
-exception:
-    js_free_prop_enum(ctx, atoms, len);
-    JS_FreeValue(ctx, props);
-    JS_FreeValue(ctx, desc);
-    return ret;
-}
-
-static JSValue js_object_constructor(JSContext *ctx, JSValueConst new_target,
-                                     int argc, JSValueConst *argv)
-{
-    JSValue ret;
-    if (!JS_IsUndefined(new_target) &&
-        JS_VALUE_GET_OBJ(new_target) !=
-        JS_VALUE_GET_OBJ(JS_GetActiveFunction(ctx))) {
-        ret = js_create_from_ctor(ctx, new_target, JS_CLASS_OBJECT);
-    } else {
-        int tag = JS_VALUE_GET_NORM_TAG(argv[0]);
-        switch(tag) {
-        case JS_TAG_NULL:
-        case JS_TAG_UNDEFINED:
-            ret = JS_NewObject(ctx);
-            break;
-        default:
-            ret = JS_ToObject(ctx, argv[0]);
-            break;
-        }
-    }
-    return ret;
-}
-
-static JSValue js_object_create(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSValueConst proto, props;
-    JSValue obj;
-
-    proto = argv[0];
-    if (!JS_IsObject(proto) && !JS_IsNull(proto))
-        return JS_ThrowTypeError(ctx, "not a prototype");
-    obj = JS_NewObjectProto(ctx, proto);
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-    props = argv[1];
-    if (!JS_IsUndefined(props)) {
-        if (JS_ObjectDefineProperties(ctx, obj, props)) {
-            JS_FreeValue(ctx, obj);
-            return JS_EXCEPTION;
-        }
-    }
-    return obj;
-}
-
-static JSValue js_object_getPrototypeOf(JSContext *ctx, JSValueConst this_val,
-                                        int argc, JSValueConst *argv, int magic)
-{
-    JSValueConst val;
-
-    val = argv[0];
-    if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) {
-        /* ES6 feature non compatible with ES5.1: primitive types are
-           accepted */
-        if (magic || JS_VALUE_GET_TAG(val) == JS_TAG_NULL ||
-            JS_VALUE_GET_TAG(val) == JS_TAG_UNDEFINED)
-            return JS_ThrowTypeErrorNotAnObject(ctx);
-    }
-    return JS_DupValue(ctx, JS_GetPrototype(ctx, val));
-}
-
-static JSValue js_object_setPrototypeOf(JSContext *ctx, JSValueConst this_val,
-                                        int argc, JSValueConst *argv)
-{
-    JSValueConst obj;
-    obj = argv[0];
-    if (JS_SetPrototypeInternal(ctx, obj, argv[1], TRUE) < 0)
-        return JS_EXCEPTION;
-    return JS_DupValue(ctx, obj);
-}
-
-/* magic = 1 if called as Reflect.defineProperty */
-static JSValue js_object_defineProperty(JSContext *ctx, JSValueConst this_val,
-                                        int argc, JSValueConst *argv, int magic)
-{
-    JSValueConst obj, prop, desc;
-    int ret, flags;
-    JSAtom atom;
-
-    obj = argv[0];
-    prop = argv[1];
-    desc = argv[2];
-
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    atom = js_value_to_atom(ctx, prop);
-    if (unlikely(atom == JS_ATOM_NULL))
-        return JS_EXCEPTION;
-    flags = 0;
-    if (!magic)
-        flags |= JS_PROP_THROW;
-    ret = JS_DefinePropertyDesc(ctx, obj, atom, desc, flags);
-    JS_FreeAtom(ctx, atom);
-    if (ret < 0) {
-        return JS_EXCEPTION;
-    } else if (magic) {
-        return JS_NewBool(ctx, ret);
-    } else {
-        return JS_DupValue(ctx, obj);
-    }
-}
-
-static JSValue js_object_defineProperties(JSContext *ctx, JSValueConst this_val,
-                                          int argc, JSValueConst *argv)
-{
-    // defineProperties(obj, properties)
-    JSValueConst obj = argv[0];
-
-    if (JS_ObjectDefineProperties(ctx, obj, argv[1]))
-        return JS_EXCEPTION;
-    else
-        return JS_DupValue(ctx, obj);
-}
-
-/* magic = 1 if called as __defineSetter__ */
-static JSValue js_object___defineGetter__(JSContext *ctx, JSValueConst this_val,
-                                          int argc, JSValueConst *argv, int magic)
-{
-    JSValue obj;
-    JSValueConst prop, value, get, set;
-    int ret, flags;
-    JSAtom atom;
-
-    prop = argv[0];
-    value = argv[1];
-
-    obj = JS_ToObject(ctx, this_val);
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-
-    if (check_function(ctx, value)) {
-        JS_FreeValue(ctx, obj);
-        return JS_EXCEPTION;
-    }
-    atom = js_value_to_atom(ctx, prop);
-    if (unlikely(atom == JS_ATOM_NULL)) {
-        JS_FreeValue(ctx, obj);
-        return JS_EXCEPTION;
-    }
-    flags = JS_PROP_THROW |
-        JS_PROP_HAS_ENUMERABLE | JS_PROP_ENUMERABLE |
-        JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE;
-    if (magic) {
-        get = JS_UNDEFINED;
-        set = value;
-        flags |= JS_PROP_HAS_SET;
-    } else {
-        get = value;
-        set = JS_UNDEFINED;
-        flags |= JS_PROP_HAS_GET;
-    }
-    ret = JS_DefineProperty(ctx, obj, atom, JS_UNDEFINED, get, set, flags);
-    JS_FreeValue(ctx, obj);
-    JS_FreeAtom(ctx, atom);
-    if (ret < 0) {
-        return JS_EXCEPTION;
-    } else {
-        return JS_UNDEFINED;
-    }
-}
-
-static JSValue js_object_getOwnPropertyDescriptor(JSContext *ctx, JSValueConst this_val,
-                                                  int argc, JSValueConst *argv, int magic)
-{
-    JSValueConst obj, prop;
-    JSAtom atom;
-    JSValue ret;
-    JSPropertyDescriptor desc;
-    int res, flags;
-
-    obj = argv[0];
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) {
-        /* ES6 feature non compatible with ES5.1: obj can be a primitive type */
-        if (magic || JS_VALUE_GET_TAG(obj) == JS_TAG_NULL ||
-            JS_VALUE_GET_TAG(obj) == JS_TAG_UNDEFINED)
-            return JS_ThrowTypeErrorNotAnObject(ctx);
-    }
-    prop = argv[1];
-    atom = js_value_to_atom(ctx, prop);
-    if (unlikely(atom == JS_ATOM_NULL))
-        return JS_EXCEPTION;
-    ret = JS_UNDEFINED;
-    if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
-        res = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(obj), atom);
-        if (res < 0)
-            goto exception;
-        if (res) {
-            ret = JS_NewObject(ctx);
-            if (JS_IsException(ret))
-                goto exception1;
-            flags = JS_PROP_C_W_E | JS_PROP_THROW;
-            if (desc.flags & JS_PROP_GETSET) {
-                if (JS_DefinePropertyValue(ctx, ret, JS_ATOM_get, JS_DupValue(ctx, desc.getter), flags) < 0
-                ||  JS_DefinePropertyValue(ctx, ret, JS_ATOM_set, JS_DupValue(ctx, desc.setter), flags) < 0)
-                    goto exception1;
-            } else {
-                if (JS_DefinePropertyValue(ctx, ret, JS_ATOM_value, JS_DupValue(ctx, desc.value), flags) < 0
-                ||  JS_DefinePropertyValue(ctx, ret, JS_ATOM_writable,
-                                           JS_NewBool(ctx, (desc.flags & JS_PROP_WRITABLE) != 0), flags) < 0)
-                    goto exception1;
-            }
-            if (JS_DefinePropertyValue(ctx, ret, JS_ATOM_enumerable,
-                                       JS_NewBool(ctx, (desc.flags & JS_PROP_ENUMERABLE) != 0), flags) < 0
-            ||  JS_DefinePropertyValue(ctx, ret, JS_ATOM_configurable,
-                                       JS_NewBool(ctx, (desc.flags & JS_PROP_CONFIGURABLE) != 0), flags) < 0)
-                goto exception1;
-            js_free_desc(ctx, &desc);
-        }
-    }
-    JS_FreeAtom(ctx, atom);
-    return ret;
-
-exception1:
-    js_free_desc(ctx, &desc);
-    JS_FreeValue(ctx, ret);
-exception:
-    JS_FreeAtom(ctx, atom);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_object_getOwnPropertyDescriptors(JSContext *ctx, JSValueConst this_val,
-                                                   int argc, JSValueConst *argv)
-{
-    //getOwnPropertyDescriptors(obj)
-    JSValue obj, r;
-    JSObject *p;
-    JSPropertyEnum *props;
-    uint32_t len, i;
-
-    r = JS_UNDEFINED;
-    obj = JS_ToObject(ctx, argv[0]);
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-
-    p = JS_VALUE_GET_OBJ(obj);
-    if (JS_GetOwnPropertyNamesInternal(ctx, &props, &len, p,
-                               JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK))
-        goto exception;
-    r = JS_NewObject(ctx);
-    if (JS_IsException(r))
-        goto exception;
-    for(i = 0; i < len; i++) {
-        JSValue atomValue, desc;
-        JSValueConst args[2];
-
-        atomValue = JS_AtomToValue(ctx, props[i].atom);
-        if (JS_IsException(atomValue))
-            goto exception;
-        args[0] = obj;
-        args[1] = atomValue;
-        desc = js_object_getOwnPropertyDescriptor(ctx, JS_UNDEFINED, 2, args, 0);
-        JS_FreeValue(ctx, atomValue);
-        if (JS_IsException(desc))
-            goto exception;
-        if (!JS_IsUndefined(desc)) {
-            if (JS_DefinePropertyValue(ctx, r, props[i].atom, desc,
-                                       JS_PROP_C_W_E | JS_PROP_THROW) < 0)
-                goto exception;
-        }
-    }
-    js_free_prop_enum(ctx, props, len);
-    JS_FreeValue(ctx, obj);
-    return r;
-
-exception:
-    js_free_prop_enum(ctx, props, len);
-    JS_FreeValue(ctx, obj);
-    JS_FreeValue(ctx, r);
-    return JS_EXCEPTION;
-}
-
-static JSValue JS_GetOwnPropertyNames2(JSContext *ctx, JSValueConst obj1,
-                                       int flags, int kind)
-{
-    JSValue obj, r, val, key, value;
-    JSObject *p;
-    JSPropertyEnum *atoms;
-    uint32_t len, i, j;
-
-    r = JS_UNDEFINED;
-    val = JS_UNDEFINED;
-    obj = JS_ToObject(ctx, obj1);
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-    p = JS_VALUE_GET_OBJ(obj);
-    if (JS_GetOwnPropertyNamesInternal(ctx, &atoms, &len, p, flags & ~JS_GPN_ENUM_ONLY))
-        goto exception;
-    r = JS_NewArray(ctx);
-    if (JS_IsException(r))
-        goto exception;
-    for(j = i = 0; i < len; i++) {
-        JSAtom atom = atoms[i].atom;
-        if (flags & JS_GPN_ENUM_ONLY) {
-            JSPropertyDescriptor desc;
-            int res;
-
-            /* Check if property is still enumerable */
-            res = JS_GetOwnPropertyInternal(ctx, &desc, p, atom);
-            if (res < 0)
-                goto exception;
-            if (!res)
-                continue;
-            js_free_desc(ctx, &desc);
-            if (!(desc.flags & JS_PROP_ENUMERABLE))
-                continue;
-        }
-        switch(kind) {
-        default:
-        case JS_ITERATOR_KIND_KEY:
-            val = JS_AtomToValue(ctx, atom);
-            if (JS_IsException(val))
-                goto exception;
-            break;
-        case JS_ITERATOR_KIND_VALUE:
-            val = JS_GetProperty(ctx, obj, atom);
-            if (JS_IsException(val))
-                goto exception;
-            break;
-        case JS_ITERATOR_KIND_KEY_AND_VALUE:
-            val = JS_NewArray(ctx);
-            if (JS_IsException(val))
-                goto exception;
-            key = JS_AtomToValue(ctx, atom);
-            if (JS_IsException(key))
-                goto exception1;
-            if (JS_CreateDataPropertyUint32(ctx, val, 0, key, JS_PROP_THROW) < 0)
-                goto exception1;
-            value = JS_GetProperty(ctx, obj, atom);
-            if (JS_IsException(value))
-                goto exception1;
-            if (JS_CreateDataPropertyUint32(ctx, val, 1, value, JS_PROP_THROW) < 0)
-                goto exception1;
-            break;
-        }
-        if (JS_CreateDataPropertyUint32(ctx, r, j++, val, 0) < 0)
-            goto exception;
-    }
-    goto done;
-
-exception1:
-    JS_FreeValue(ctx, val);
-exception:
-    JS_FreeValue(ctx, r);
-    r = JS_EXCEPTION;
-done:
-    js_free_prop_enum(ctx, atoms, len);
-    JS_FreeValue(ctx, obj);
-    return r;
-}
-
-static JSValue js_object_getOwnPropertyNames(JSContext *ctx, JSValueConst this_val,
-                                             int argc, JSValueConst *argv)
-{
-    return JS_GetOwnPropertyNames2(ctx, argv[0],
-                                   JS_GPN_STRING_MASK, JS_ITERATOR_KIND_KEY);
-}
-
-static JSValue js_object_getOwnPropertySymbols(JSContext *ctx, JSValueConst this_val,
-                                             int argc, JSValueConst *argv)
-{
-    return JS_GetOwnPropertyNames2(ctx, argv[0],
-                                   JS_GPN_SYMBOL_MASK, JS_ITERATOR_KIND_KEY);
-}
-
-static JSValue js_object_keys(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv, int kind)
-{
-    return JS_GetOwnPropertyNames2(ctx, argv[0],
-                                   JS_GPN_ENUM_ONLY | JS_GPN_STRING_MASK, kind);
-}
-
-static JSValue js_object_isExtensible(JSContext *ctx, JSValueConst this_val,
-                                      int argc, JSValueConst *argv, int reflect)
-{
-    JSValueConst obj;
-    int ret;
-
-    obj = argv[0];
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) {
-        if (reflect)
-            return JS_ThrowTypeErrorNotAnObject(ctx);
-        else
-            return JS_FALSE;
-    }
-    ret = JS_IsExtensible(ctx, obj);
-    if (ret < 0)
-        return JS_EXCEPTION;
-    else
-        return JS_NewBool(ctx, ret);
-}
-
-static JSValue js_object_preventExtensions(JSContext *ctx, JSValueConst this_val,
-                                           int argc, JSValueConst *argv, int reflect)
-{
-    JSValueConst obj;
-    int ret;
-
-    obj = argv[0];
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) {
-        if (reflect)
-            return JS_ThrowTypeErrorNotAnObject(ctx);
-        else
-            return JS_DupValue(ctx, obj);
-    }
-    ret = JS_PreventExtensions(ctx, obj);
-    if (ret < 0)
-        return JS_EXCEPTION;
-    if (reflect)
-        return JS_NewBool(ctx, ret);
-    else
-        return JS_DupValue(ctx, obj);
-}
-
-static JSValue js_object_hasOwnProperty(JSContext *ctx, JSValueConst this_val,
-                                        int argc, JSValueConst *argv)
-{
-    JSValue obj;
-    JSAtom atom;
-    JSObject *p;
-    BOOL ret;
-
-    atom = js_value_to_atom(ctx, argv[0]); /* must be done first */
-    if (unlikely(atom == JS_ATOM_NULL))
-        return JS_EXCEPTION;
-    obj = JS_ToObject(ctx, this_val);
-    if (JS_IsException(obj)) {
-        JS_FreeAtom(ctx, atom);
-        return obj;
-    }
-    p = JS_VALUE_GET_OBJ(obj);
-    ret = JS_GetOwnPropertyInternal(ctx, NULL, p, atom);
-    JS_FreeAtom(ctx, atom);
-    JS_FreeValue(ctx, obj);
-    if (ret < 0)
-        return JS_EXCEPTION;
-    else
-        return JS_NewBool(ctx, ret);
-}
-
-static JSValue js_object_valueOf(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    return JS_ToObject(ctx, this_val);
-}
-
-static JSValue js_object_toString(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    JSValue obj, tag;
-    int is_array;
-    JSAtom atom;
-    JSObject *p;
-
-    if (JS_IsNull(this_val)) {
-        tag = JS_NewString(ctx, "Null");
-    } else if (JS_IsUndefined(this_val)) {
-        tag = JS_NewString(ctx, "Undefined");
-    } else {
-        obj = JS_ToObject(ctx, this_val);
-        if (JS_IsException(obj))
-            return obj;
-        is_array = JS_IsArray(ctx, obj);
-        if (is_array < 0) {
-            JS_FreeValue(ctx, obj);
-            return JS_EXCEPTION;
-        }
-        if (is_array) {
-            atom = JS_ATOM_Array;
-        } else if (JS_IsFunction(ctx, obj)) {
-            atom = JS_ATOM_Function;
-        } else {
-            p = JS_VALUE_GET_OBJ(obj);
-            switch(p->class_id) {
-            case JS_CLASS_STRING:
-            case JS_CLASS_ARGUMENTS:
-            case JS_CLASS_MAPPED_ARGUMENTS:
-            case JS_CLASS_ERROR:
-            case JS_CLASS_BOOLEAN:
-            case JS_CLASS_NUMBER:
-            case JS_CLASS_DATE:
-            case JS_CLASS_REGEXP:
-                atom = ctx->rt->class_array[p->class_id].class_name;
-                break;
-            default:
-                atom = JS_ATOM_Object;
-                break;
-            }
-        }
-        tag = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_toStringTag);
-        JS_FreeValue(ctx, obj);
-        if (JS_IsException(tag))
-            return JS_EXCEPTION;
-        if (!JS_IsString(tag)) {
-            JS_FreeValue(ctx, tag);
-            tag = JS_AtomToString(ctx, atom);
-        }
-    }
-    return JS_ConcatString3(ctx, "[object ", tag, "]");
-}
-
-static JSValue js_object_toLocaleString(JSContext *ctx, JSValueConst this_val,
-                                        int argc, JSValueConst *argv)
-{
-    return JS_Invoke(ctx, this_val, JS_ATOM_toString, 0, NULL);
-}
-
-static JSValue js_object_assign(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    // Object.assign(obj, source1)
-    JSValue obj, s;
-    int i;
-
-    s = JS_UNDEFINED;
-    obj = JS_ToObject(ctx, argv[0]);
-    if (JS_IsException(obj))
-        goto exception;
-    for (i = 1; i < argc; i++) {
-        if (!JS_IsNull(argv[i]) && !JS_IsUndefined(argv[i])) {
-            s = JS_ToObject(ctx, argv[i]);
-            if (JS_IsException(s))
-                goto exception;
-            if (JS_CopyDataProperties(ctx, obj, s, JS_UNDEFINED, TRUE))
-                goto exception;
-            JS_FreeValue(ctx, s);
-        }
-    }
-    return obj;
-exception:
-    JS_FreeValue(ctx, obj);
-    JS_FreeValue(ctx, s);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_object_seal(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv, int freeze_flag)
-{
-    JSValueConst obj = argv[0];
-    JSObject *p;
-    JSPropertyEnum *props;
-    uint32_t len, i;
-    int flags, desc_flags, res;
-
-    if (!JS_IsObject(obj))
-        return JS_DupValue(ctx, obj);
-
-    p = JS_VALUE_GET_OBJ(obj);
-    flags = JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK;
-    if (JS_GetOwnPropertyNamesInternal(ctx, &props, &len, p, flags))
-        return JS_EXCEPTION;
-
-    for(i = 0; i < len; i++) {
-        JSPropertyDescriptor desc;
-        JSAtom prop = props[i].atom;
-
-        desc_flags = JS_PROP_THROW | JS_PROP_HAS_CONFIGURABLE;
-        if (freeze_flag) {
-            res = JS_GetOwnPropertyInternal(ctx, &desc, p, prop);
-            if (res < 0)
-                goto exception;
-            if (res) {
-                if (desc.flags & JS_PROP_WRITABLE)
-                    desc_flags |= JS_PROP_HAS_WRITABLE;
-                js_free_desc(ctx, &desc);
-            }
-        }
-        if (JS_DefineProperty(ctx, obj, prop, JS_UNDEFINED,
-                              JS_UNDEFINED, JS_UNDEFINED, desc_flags) < 0)
-            goto exception;
-    }
-    js_free_prop_enum(ctx, props, len);
-    return js_object_preventExtensions(ctx, JS_UNDEFINED, 1, argv, 0);
-
- exception:
-    js_free_prop_enum(ctx, props, len);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_object_isSealed(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv, int is_frozen)
-{
-    JSValueConst obj = argv[0];
-    JSObject *p;
-    JSPropertyEnum *props;
-    uint32_t len, i;
-    int flags, res;
-    
-    if (!JS_IsObject(obj))
-        return JS_TRUE;
-
-    p = JS_VALUE_GET_OBJ(obj);
-    flags = JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK;
-    if (JS_GetOwnPropertyNamesInternal(ctx, &props, &len, p, flags))
-        return JS_EXCEPTION;
-
-    for(i = 0; i < len; i++) {
-        JSPropertyDescriptor desc;
-        JSAtom prop = props[i].atom;
-
-        res = JS_GetOwnPropertyInternal(ctx, &desc, p, prop);
-        if (res < 0)
-            goto exception;
-        if (res) {
-            js_free_desc(ctx, &desc);
-            if ((desc.flags & JS_PROP_CONFIGURABLE)
-            ||  (is_frozen && (desc.flags & JS_PROP_WRITABLE))) {
-                res = FALSE;
-                goto done;
-            }
-        }
-    }
-    res = JS_IsExtensible(ctx, obj);
-    if (res < 0)
-        return JS_EXCEPTION;
-    res ^= 1;
-done:        
-    js_free_prop_enum(ctx, props, len);
-    return JS_NewBool(ctx, res);
-
-exception:
-    js_free_prop_enum(ctx, props, len);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_object_fromEntries(JSContext *ctx, JSValueConst this_val,
-                                     int argc, JSValueConst *argv)
-{
-    JSValue obj, iter, next_method = JS_UNDEFINED;
-    JSValueConst iterable;
-    BOOL done;
-
-    /*  RequireObjectCoercible() not necessary because it is tested in
-        JS_GetIterator() by JS_GetProperty() */
-    iterable = argv[0];
-
-    obj = JS_NewObject(ctx);
-    if (JS_IsException(obj))
-        return obj;
-    
-    iter = JS_GetIterator(ctx, iterable, FALSE);
-    if (JS_IsException(iter))
-        goto fail;
-    next_method = JS_GetProperty(ctx, iter, JS_ATOM_next);
-    if (JS_IsException(next_method))
-        goto fail;
-    
-    for(;;) {
-        JSValue key, value, item;
-        item = JS_IteratorNext(ctx, iter, next_method, 0, NULL, &done);
-        if (JS_IsException(item))
-            goto fail;
-        if (done) {
-            JS_FreeValue(ctx, item);
-            break;
-        }
-        
-        key = JS_UNDEFINED;
-        value = JS_UNDEFINED;
-        if (!JS_IsObject(item)) {
-            JS_ThrowTypeErrorNotAnObject(ctx);
-            goto fail1;
-        }
-        key = JS_GetPropertyUint32(ctx, item, 0);
-        if (JS_IsException(key))
-            goto fail1;
-        value = JS_GetPropertyUint32(ctx, item, 1);
-        if (JS_IsException(value)) {
-            JS_FreeValue(ctx, key);
-            goto fail1;
-        }
-        if (JS_DefinePropertyValueValue(ctx, obj, key, value,
-                                        JS_PROP_C_W_E | JS_PROP_THROW) < 0) {
-        fail1:
-            JS_FreeValue(ctx, item);
-            goto fail;
-        }
-        JS_FreeValue(ctx, item);
-    }
-    JS_FreeValue(ctx, next_method);
-    JS_FreeValue(ctx, iter);
-    return obj;
- fail:
-    if (JS_IsObject(iter)) {
-        /* close the iterator object, preserving pending exception */
-        JS_IteratorClose(ctx, iter, TRUE);
-    }
-    JS_FreeValue(ctx, next_method);
-    JS_FreeValue(ctx, iter);
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-#if 0
-/* Note: corresponds to ECMA spec: CreateDataPropertyOrThrow() */
-static JSValue js_object___setOwnProperty(JSContext *ctx, JSValueConst this_val,
-                                          int argc, JSValueConst *argv)
-{
-    int ret;
-    ret = JS_DefinePropertyValueValue(ctx, argv[0], JS_DupValue(ctx, argv[1]),
-                                      JS_DupValue(ctx, argv[2]),
-                                      JS_PROP_C_W_E | JS_PROP_THROW);
-    if (ret < 0)
-        return JS_EXCEPTION;
-    else
-        return JS_NewBool(ctx, ret);
-}
-
-static JSValue js_object___toObject(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    return JS_ToObject(ctx, argv[0]);
-}
-
-static JSValue js_object___toPrimitive(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    int hint = HINT_NONE;
-
-    if (JS_VALUE_GET_TAG(argv[1]) == JS_TAG_INT)
-        hint = JS_VALUE_GET_INT(argv[1]);
-
-    return JS_ToPrimitive(ctx, argv[0], hint);
-}
-#endif
-
-/* return an empty string if not an object */
-static JSValue js_object___getClass(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    JSAtom atom;
-    JSObject *p;
-    uint32_t tag;
-    int class_id;
-
-    tag = JS_VALUE_GET_NORM_TAG(argv[0]);
-    if (tag == JS_TAG_OBJECT) {
-        p = JS_VALUE_GET_OBJ(argv[0]);
-        class_id = p->class_id;
-        if (class_id == JS_CLASS_PROXY && JS_IsFunction(ctx, argv[0]))
-            class_id = JS_CLASS_BYTECODE_FUNCTION;
-        atom = ctx->rt->class_array[class_id].class_name;
-    } else {
-        atom = JS_ATOM_empty_string;
-    }
-    return JS_AtomToString(ctx, atom);
-}
-
-static JSValue js_object_is(JSContext *ctx, JSValueConst this_val,
-                            int argc, JSValueConst *argv)
-{
-    return JS_NewBool(ctx, js_same_value(ctx, argv[0], argv[1]));
-}
-
-#if 0
-static JSValue js_object___getObjectData(JSContext *ctx, JSValueConst this_val,
-                                         int argc, JSValueConst *argv)
-{
-    return JS_GetObjectData(ctx, argv[0]);
-}
-
-static JSValue js_object___setObjectData(JSContext *ctx, JSValueConst this_val,
-                                         int argc, JSValueConst *argv)
-{
-    if (JS_SetObjectData(ctx, argv[0], JS_DupValue(ctx, argv[1])))
-        return JS_EXCEPTION;
-    return JS_DupValue(ctx, argv[1]);
-}
-
-static JSValue js_object___toPropertyKey(JSContext *ctx, JSValueConst this_val,
-                                         int argc, JSValueConst *argv)
-{
-    return JS_ToPropertyKey(ctx, argv[0]);
-}
-
-static JSValue js_object___isObject(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    return JS_NewBool(ctx, JS_IsObject(argv[0]));
-}
-
-static JSValue js_object___isSameValueZero(JSContext *ctx, JSValueConst this_val,
-                                           int argc, JSValueConst *argv)
-{
-    return JS_NewBool(ctx, js_same_value_zero(ctx, argv[0], argv[1]));
-}
-
-static JSValue js_object___isConstructor(JSContext *ctx, JSValueConst this_val,
-                                         int argc, JSValueConst *argv)
-{
-    return JS_NewBool(ctx, JS_IsConstructor(ctx, argv[0]));
-}
-#endif
-
-static JSValue JS_SpeciesConstructor(JSContext *ctx, JSValueConst obj,
-                                     JSValueConst defaultConstructor)
-{
-    JSValue ctor, species;
-
-    if (!JS_IsObject(obj))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    ctor = JS_GetProperty(ctx, obj, JS_ATOM_constructor);
-    if (JS_IsException(ctor))
-        return ctor;
-    if (JS_IsUndefined(ctor))
-        return JS_DupValue(ctx, defaultConstructor);
-    if (!JS_IsObject(ctor)) {
-        JS_FreeValue(ctx, ctor);
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    }
-    species = JS_GetProperty(ctx, ctor, JS_ATOM_Symbol_species);
-    JS_FreeValue(ctx, ctor);
-    if (JS_IsException(species))
-        return species;
-    if (JS_IsUndefined(species) || JS_IsNull(species))
-        return JS_DupValue(ctx, defaultConstructor);
-    if (!JS_IsConstructor(ctx, species)) {
-        JS_FreeValue(ctx, species);
-        return JS_ThrowTypeError(ctx, "not a constructor");
-    }
-    return species;
-}
-
-#if 0
-static JSValue js_object___speciesConstructor(JSContext *ctx, JSValueConst this_val,
-                                              int argc, JSValueConst *argv)
-{
-    return JS_SpeciesConstructor(ctx, argv[0], argv[1]);
-}
-#endif
-
-static JSValue js_object_get___proto__(JSContext *ctx, JSValueConst this_val)
-{
-    JSValue val, ret;
-
-    val = JS_ToObject(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    ret = JS_DupValue(ctx, JS_GetPrototype(ctx, val));
-    JS_FreeValue(ctx, val);
-    return ret;
-}
-
-static JSValue js_object_set___proto__(JSContext *ctx, JSValueConst this_val,
-                                       JSValueConst proto)
-{
-    if (JS_IsUndefined(this_val) || JS_IsNull(this_val))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    if (!JS_IsObject(proto) && !JS_IsNull(proto))
-        return JS_UNDEFINED;
-    if (JS_SetPrototypeInternal(ctx, this_val, proto, TRUE) < 0)
-        return JS_EXCEPTION;
-    else
-        return JS_UNDEFINED;
-}
-
-static JSValue js_object_isPrototypeOf(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    JSValue obj;
-    JSValueConst v;
-    int max_depth = 1000, res = -1;
-
-    v = argv[0];
-    if (!JS_IsObject(v))
-        return JS_FALSE;
-    obj = JS_ToObject(ctx, this_val);
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-    while (--max_depth > 0) {
-        v = JS_GetPrototype(ctx, v);
-        if (JS_IsException(v))
-            goto exception;
-        if (JS_IsNull(v)) {
-            res = FALSE;
-            break;
-        }
-        if (js_strict_eq2(ctx, JS_DupValue(ctx, obj), JS_DupValue(ctx, v),
-                          JS_EQ_STRICT)) {
-            res = TRUE;
-            break;
-        }
-    }
-    JS_FreeValue(ctx, obj);
-    if (res < 0)
-        return JS_ThrowInternalError(ctx, "prototype chain cycle");
-    else
-        return JS_NewBool(ctx, res);
-
-exception:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_object_propertyIsEnumerable(JSContext *ctx, JSValueConst this_val,
-                                              int argc, JSValueConst *argv)
-{
-    JSValue obj, res = JS_EXCEPTION;
-    JSAtom prop = JS_ATOM_NULL;
-    JSPropertyDescriptor desc;
-    int has_prop;
-
-    obj = JS_ToObject(ctx, this_val);
-    if (JS_IsException(obj))
-        goto exception;
-    prop = js_value_to_atom(ctx, argv[0]);
-    if (unlikely(prop == JS_ATOM_NULL))
-        goto exception;
-
-    has_prop = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(obj), prop);
-    if (has_prop < 0)
-        goto exception;
-    if (has_prop) {
-        res = JS_NewBool(ctx, (desc.flags & JS_PROP_ENUMERABLE) != 0);
-        js_free_desc(ctx, &desc);
-    } else {
-        res = JS_FALSE;
-    }
-
-exception:
-    JS_FreeAtom(ctx, prop);
-    JS_FreeValue(ctx, obj);
-    return res;
-}
-
-static JSValue js_object___lookupGetter__(JSContext *ctx, JSValueConst this_val,
-                                          int argc, JSValueConst *argv, int setter)
-{
-    JSValue obj, res = JS_EXCEPTION;
-    JSValueConst v;
-    JSAtom prop = JS_ATOM_NULL;
-    JSPropertyDescriptor desc;
-    int has_prop;
-
-    obj = JS_ToObject(ctx, this_val);
-    if (JS_IsException(obj))
-        goto exception;
-    prop = js_value_to_atom(ctx, argv[0]);
-    if (unlikely(prop == JS_ATOM_NULL))
-        goto exception;
-
-    for (v = obj;;) {
-        has_prop = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(v), prop);
-        if (has_prop < 0)
-            goto exception;
-        if (has_prop) {
-            if (desc.flags & JS_PROP_GETSET)
-                res = JS_DupValue(ctx, setter ? desc.setter : desc.getter);
-            else
-                res = JS_UNDEFINED;
-            js_free_desc(ctx, &desc);
-            break;
-        }
-        v = JS_GetPrototype(ctx, v);
-        if (JS_IsException(v))
-            goto exception;
-        if (JS_IsNull(v)) {
-            res = JS_UNDEFINED;
-            break;
-        }
-    }
-
-exception:
-    JS_FreeAtom(ctx, prop);
-    JS_FreeValue(ctx, obj);
-    return res;
-}
-
-static const JSCFunctionListEntry js_object_funcs[] = {
-    JS_CFUNC_DEF("create", 2, js_object_create ),
-    JS_CFUNC_MAGIC_DEF("getPrototypeOf", 1, js_object_getPrototypeOf, 0 ),
-    JS_CFUNC_DEF("setPrototypeOf", 2, js_object_setPrototypeOf ),
-    JS_CFUNC_MAGIC_DEF("defineProperty", 3, js_object_defineProperty, 0 ),
-    JS_CFUNC_DEF("defineProperties", 2, js_object_defineProperties ),
-    JS_CFUNC_DEF("getOwnPropertyNames", 1, js_object_getOwnPropertyNames ),
-    JS_CFUNC_DEF("getOwnPropertySymbols", 1, js_object_getOwnPropertySymbols ),
-    JS_CFUNC_MAGIC_DEF("keys", 1, js_object_keys, JS_ITERATOR_KIND_KEY ),
-    JS_CFUNC_MAGIC_DEF("values", 1, js_object_keys, JS_ITERATOR_KIND_VALUE ),
-    JS_CFUNC_MAGIC_DEF("entries", 1, js_object_keys, JS_ITERATOR_KIND_KEY_AND_VALUE ),
-    JS_CFUNC_MAGIC_DEF("isExtensible", 1, js_object_isExtensible, 0 ),
-    JS_CFUNC_MAGIC_DEF("preventExtensions", 1, js_object_preventExtensions, 0 ),
-    JS_CFUNC_MAGIC_DEF("getOwnPropertyDescriptor", 2, js_object_getOwnPropertyDescriptor, 0 ),
-    JS_CFUNC_DEF("getOwnPropertyDescriptors", 1, js_object_getOwnPropertyDescriptors ),
-    JS_CFUNC_DEF("is", 2, js_object_is ),
-    JS_CFUNC_DEF("assign", 2, js_object_assign ),
-    JS_CFUNC_MAGIC_DEF("seal", 1, js_object_seal, 0 ),
-    JS_CFUNC_MAGIC_DEF("freeze", 1, js_object_seal, 1 ),
-    JS_CFUNC_MAGIC_DEF("isSealed", 1, js_object_isSealed, 0 ),
-    JS_CFUNC_MAGIC_DEF("isFrozen", 1, js_object_isSealed, 1 ),
-    JS_CFUNC_DEF("__getClass", 1, js_object___getClass ),
-    //JS_CFUNC_DEF("__isObject", 1, js_object___isObject ),
-    //JS_CFUNC_DEF("__isConstructor", 1, js_object___isConstructor ),
-    //JS_CFUNC_DEF("__toObject", 1, js_object___toObject ),
-    //JS_CFUNC_DEF("__setOwnProperty", 3, js_object___setOwnProperty ),
-    //JS_CFUNC_DEF("__toPrimitive", 2, js_object___toPrimitive ),
-    //JS_CFUNC_DEF("__toPropertyKey", 1, js_object___toPropertyKey ),
-    //JS_CFUNC_DEF("__speciesConstructor", 2, js_object___speciesConstructor ),
-    //JS_CFUNC_DEF("__isSameValueZero", 2, js_object___isSameValueZero ),
-    //JS_CFUNC_DEF("__getObjectData", 1, js_object___getObjectData ),
-    //JS_CFUNC_DEF("__setObjectData", 2, js_object___setObjectData ),
-    JS_CFUNC_DEF("fromEntries", 1, js_object_fromEntries ),
-};
-
-static const JSCFunctionListEntry js_object_proto_funcs[] = {
-    JS_CFUNC_DEF("toString", 0, js_object_toString ),
-    JS_CFUNC_DEF("toLocaleString", 0, js_object_toLocaleString ),
-    JS_CFUNC_DEF("valueOf", 0, js_object_valueOf ),
-    JS_CFUNC_DEF("hasOwnProperty", 1, js_object_hasOwnProperty ),
-    JS_CFUNC_DEF("isPrototypeOf", 1, js_object_isPrototypeOf ),
-    JS_CFUNC_DEF("propertyIsEnumerable", 1, js_object_propertyIsEnumerable ),
-    JS_CGETSET_DEF("__proto__", js_object_get___proto__, js_object_set___proto__ ),
-    JS_CFUNC_MAGIC_DEF("__defineGetter__", 2, js_object___defineGetter__, 0 ),
-    JS_CFUNC_MAGIC_DEF("__defineSetter__", 2, js_object___defineGetter__, 1 ),
-    JS_CFUNC_MAGIC_DEF("__lookupGetter__", 1, js_object___lookupGetter__, 0 ),
-    JS_CFUNC_MAGIC_DEF("__lookupSetter__", 1, js_object___lookupGetter__, 1 ),
-};
-
-/* Function class */
-
-static JSValue js_function_proto(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    return JS_UNDEFINED;
-}
-
-static JSValue js_function_constructor(JSContext *ctx, JSValueConst new_target,
-                                       int argc, JSValueConst *argv, int magic)
-{
-    JSFunctionKindEnum func_kind = magic;
-    int i, n, ret;
-    JSValue s, proto, obj = JS_UNDEFINED;
-    StringBuffer b_s, *b = &b_s;
-
-    string_buffer_init(ctx, b, 0);
-    string_buffer_putc8(b, '(');
-
-    if (func_kind == JS_FUNC_ASYNC || func_kind == JS_FUNC_ASYNC_GENERATOR) {
-        string_buffer_puts8(b, "async ");
-    }
-    string_buffer_puts8(b, "function");
-
-    if (func_kind == JS_FUNC_GENERATOR || func_kind == JS_FUNC_ASYNC_GENERATOR) {
-        string_buffer_putc8(b, '*');
-    }
-    string_buffer_puts8(b, " anonymous(");
-
-    n = argc - 1;
-    for(i = 0; i < n; i++) {
-        if (i != 0) {
-            string_buffer_putc8(b, ',');
-        }
-        if (string_buffer_concat_value(b, argv[i]))
-            goto fail;
-    }
-    string_buffer_puts8(b, "\n) {\n");
-    if (n >= 0) {
-        if (string_buffer_concat_value(b, argv[n]))
-            goto fail;
-    }
-    string_buffer_puts8(b, "\n})");
-    s = string_buffer_end(b);
-    if (JS_IsException(s))
-        goto fail1;
-
-    obj = JS_EvalObject(ctx, ctx->global_obj, s, JS_EVAL_TYPE_INDIRECT, -1);
-    JS_FreeValue(ctx, s);
-    if (JS_IsException(obj))
-        goto fail1;
-    if (!JS_IsUndefined(new_target)) {
-        /* set the prototype */
-        proto = js_get_prototype_from_ctor(ctx, new_target, JS_UNDEFINED);
-        if (JS_IsException(proto))
-            goto fail1;
-        if (!JS_IsUndefined(proto)) {
-            ret = JS_SetPrototypeInternal(ctx, obj, proto, TRUE);
-            JS_FreeValue(ctx, proto);
-            if (ret < 0)
-                goto fail1;
-        }
-    }
-    return obj;
-
- fail:
-    string_buffer_free(b);
- fail1:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static __exception int js_get_length32(JSContext *ctx, uint32_t *pres,
-                                       JSValueConst obj)
-{
-    JSValue len_val;
-    len_val = JS_GetProperty(ctx, obj, JS_ATOM_length);
-    if (JS_IsException(len_val)) {
-        *pres = 0;
-        return -1;
-    }
-    return JS_ToUint32Free(ctx, pres, len_val);
-}
-
-static __exception int js_get_length64(JSContext *ctx, int64_t *pres,
-                                       JSValueConst obj)
-{
-    JSValue len_val;
-    len_val = JS_GetProperty(ctx, obj, JS_ATOM_length);
-    if (JS_IsException(len_val)) {
-        *pres = 0;
-        return -1;
-    }
-    return JS_ToLengthFree(ctx, pres, len_val);
-}
-
-static void free_arg_list(JSContext *ctx, JSValue *tab, uint32_t len)
-{
-    uint32_t i;
-    for(i = 0; i < len; i++) {
-        JS_FreeValue(ctx, tab[i]);
-    }
-    js_free(ctx, tab);
-}
-
-/* XXX: should use ValueArray */
-static JSValue *build_arg_list(JSContext *ctx, uint32_t *plen,
-                               JSValueConst array_arg)
-{
-    uint32_t len, i;
-    JSValue *tab, ret;
-    JSObject *p;
-
-    if (JS_VALUE_GET_TAG(array_arg) != JS_TAG_OBJECT) {
-        JS_ThrowTypeError(ctx, "not a object");
-        return NULL;
-    }
-    if (js_get_length32(ctx, &len, array_arg))
-        return NULL;
-    /* avoid allocating 0 bytes */
-    tab = js_mallocz(ctx, sizeof(tab[0]) * max_uint32(1, len));
-    if (!tab)
-        return NULL;
-    p = JS_VALUE_GET_OBJ(array_arg);
-    if ((p->class_id == JS_CLASS_ARRAY || p->class_id == JS_CLASS_ARGUMENTS) &&
-        p->fast_array &&
-        len == p->u.array.count) {
-        for(i = 0; i < len; i++) {
-            tab[i] = JS_DupValue(ctx, p->u.array.u.values[i]);
-        }
-    } else {
-        for(i = 0; i < len; i++) {
-            ret = JS_GetPropertyUint32(ctx, array_arg, i);
-            if (JS_IsException(ret)) {
-                free_arg_list(ctx, tab, i);
-                return NULL;
-            }
-            tab[i] = ret;
-        }
-    }
-    *plen = len;
-    return tab;
-}
-
-static JSValue js_function_apply(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv, int magic)
-{
-    JSValueConst this_arg, array_arg;
-    uint32_t len;
-    JSValue *tab, ret;
-
-    if (check_function(ctx, this_val))
-        return JS_EXCEPTION;
-    this_arg = argv[0];
-    array_arg = argv[1];
-    if (JS_VALUE_GET_TAG(array_arg) == JS_TAG_UNDEFINED ||
-        JS_VALUE_GET_TAG(array_arg) == JS_TAG_NULL) {
-        return JS_Call(ctx, this_val, this_arg, 0, NULL);
-    }
-    tab = build_arg_list(ctx, &len, array_arg);
-    if (!tab)
-        return JS_EXCEPTION;
-    if (magic) {
-        ret = JS_CallConstructor2(ctx, this_val, this_arg, len, (JSValueConst *)tab);
-    } else {
-        ret = JS_Call(ctx, this_val, this_arg, len, (JSValueConst *)tab);
-    }
-    free_arg_list(ctx, tab, len);
-    return ret;
-}
-
-static JSValue js_function_call(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    if (argc <= 0) {
-        return JS_Call(ctx, this_val, JS_UNDEFINED, 0, NULL);
-    } else {
-        return JS_Call(ctx, this_val, argv[0], argc - 1, argv + 1);
-    }
-}
-
-static JSValue js_function_bind(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSBoundFunction *bf;
-    JSValue func_obj, name1;
-    JSObject *p;
-    int arg_count, i;
-    uint32_t len1;
-
-    if (check_function(ctx, this_val))
-        return JS_EXCEPTION;
-
-    func_obj = JS_NewObjectProtoClass(ctx, ctx->function_proto,
-                                 JS_CLASS_BOUND_FUNCTION);
-    if (JS_IsException(func_obj))
-        return JS_EXCEPTION;
-    p = JS_VALUE_GET_OBJ(func_obj);
-    p->is_constructor = JS_IsConstructor(ctx, this_val);
-    arg_count = max_int(0, argc - 1);
-    bf = js_malloc(ctx, sizeof(*bf) + arg_count * sizeof(JSValue));
-    if (!bf)
-        goto exception;
-    bf->func_obj = JS_DupValue(ctx, this_val);
-    bf->this_val = JS_DupValue(ctx, argv[0]);
-    bf->argc = arg_count;
-    for(i = 0; i < arg_count; i++) {
-        bf->argv[i] = JS_DupValue(ctx, argv[i + 1]);
-    }
-    p->u.bound_function = bf;
-
-    name1 = JS_GetProperty(ctx, this_val, JS_ATOM_name);
-    if (JS_IsException(name1))
-        goto exception;
-    if (!JS_IsString(name1)) {
-        JS_FreeValue(ctx, name1);
-        name1 = JS_AtomToString(ctx, JS_ATOM_empty_string);
-    }
-    name1 = JS_ConcatString3(ctx, "bound ", name1, "");
-    if (JS_IsException(name1))
-        goto exception;
-    JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_name, name1,
-                           JS_PROP_CONFIGURABLE);
-    if (js_get_length32(ctx, &len1, this_val))
-        goto exception;
-    if (len1 <= (uint32_t)arg_count)
-        len1 = 0;
-    else
-        len1 -= arg_count;
-    JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_length,
-                           JS_NewUint32(ctx, len1),
-                           JS_PROP_CONFIGURABLE);
-    return func_obj;
- exception:
-    JS_FreeValue(ctx, func_obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_function_toString(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    JSObject *p;
-    JSFunctionKindEnum func_kind = JS_FUNC_NORMAL;
-
-    if (check_function(ctx, this_val))
-        return JS_EXCEPTION;
-
-    p = JS_VALUE_GET_OBJ(this_val);
-    if (js_class_has_bytecode(p->class_id)) {
-        JSFunctionBytecode *b = p->u.func.function_bytecode;
-        if (b->has_debug && b->debug.source) {
-            return JS_NewStringLen(ctx, b->debug.source, b->debug.source_len);
-        }
-        func_kind = b->func_kind;
-    }
-    {
-        JSValue name;
-        const char *pref, *suff;
-
-        if (p->is_class) {
-            pref = "class ";
-            suff = " {\n    [native code]\n}";
-        } else {
-            switch(func_kind) {
-            default:
-            case JS_FUNC_NORMAL:
-                pref = "function ";
-                break;
-            case JS_FUNC_GENERATOR:
-                pref = "function *";
-                break;
-            case JS_FUNC_ASYNC:
-                pref = "async function ";
-                break;
-            case JS_FUNC_ASYNC_GENERATOR:
-                pref = "async function *";
-                break;
-            }
-            suff = "() {\n    [native code]\n}";
-        }
-        name = JS_GetProperty(ctx, this_val, JS_ATOM_name);
-        if (JS_IsUndefined(name))
-            name = JS_AtomToString(ctx, JS_ATOM_empty_string);
-        return JS_ConcatString3(ctx, pref, name, suff);
-    }
-}
-
-static JSValue js_function_hasInstance(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    int ret;
-    ret = JS_OrdinaryIsInstanceOf(ctx, argv[0], this_val);
-    if (ret < 0)
-        return JS_EXCEPTION;
-    else
-        return JS_NewBool(ctx, ret);
-}
-
-static const JSCFunctionListEntry js_function_proto_funcs[] = {
-    JS_CFUNC_DEF("call", 1, js_function_call ),
-    JS_CFUNC_MAGIC_DEF("apply", 2, js_function_apply, 0 ),
-    JS_CFUNC_DEF("bind", 1, js_function_bind ),
-    JS_CFUNC_DEF("toString", 0, js_function_toString ),
-    JS_CFUNC_DEF("[Symbol.hasInstance]", 1, js_function_hasInstance ),
-    JS_CGETSET_DEF("fileName", js_function_proto_fileName, NULL ),
-    JS_CGETSET_DEF("lineNumber", js_function_proto_lineNumber, NULL ),
-};
-
-/* Error class */
-
-static JSValue js_error_constructor(JSContext *ctx, JSValueConst new_target,
-                                    int argc, JSValueConst *argv, int magic)
-{
-    JSValue obj, msg, proto;
-    JSValueConst proto1;
-
-    if (JS_IsUndefined(new_target))
-        new_target = JS_GetActiveFunction(ctx);
-    if (magic < 0) {
-        proto1 = ctx->class_proto[JS_CLASS_ERROR];
-    } else {
-        proto1 = ctx->native_error_proto[magic];
-    }
-    proto = js_get_prototype_from_ctor(ctx, new_target, proto1);
-    if (JS_IsException(proto))
-        return proto;
-    obj = JS_NewObjectProtoClass(ctx, proto, JS_CLASS_ERROR);
-    JS_FreeValue(ctx, proto);
-    if (!JS_IsException(obj) && !JS_IsUndefined(argv[0])) {
-        msg = JS_ToString(ctx, argv[0]);
-        if (unlikely(JS_IsException(msg))) {
-            JS_FreeValue(ctx, obj);
-            return JS_EXCEPTION;
-        }
-        JS_DefinePropertyValue(ctx, obj, JS_ATOM_message, msg,
-                               JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-    }
-    return obj;
-}
-
-static JSValue js_error_toString(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    JSValue name, msg;
-
-    name = JS_GetProperty(ctx, this_val, JS_ATOM_name);
-    if (JS_IsUndefined(name))
-        name = JS_AtomToString(ctx, JS_ATOM_Error);
-    else
-        name = JS_ToStringFree(ctx, name);
-    if (JS_IsException(name))
-        return JS_EXCEPTION;
-
-    msg = JS_GetProperty(ctx, this_val, JS_ATOM_message);
-    if (JS_IsUndefined(msg))
-        msg = JS_AtomToString(ctx, JS_ATOM_empty_string);
-    else
-        msg = JS_ToStringFree(ctx, msg);
-    if (JS_IsException(msg)) {
-        JS_FreeValue(ctx, name);
-        return JS_EXCEPTION;
-    }
-    if (!JS_IsEmptyString(name) && !JS_IsEmptyString(msg))
-        name = JS_ConcatString3(ctx, "", name, ": ");
-    return JS_ConcatString(ctx, name, msg);
-}
-
-static const JSCFunctionListEntry js_error_proto_funcs[] = {
-    JS_CFUNC_DEF("toString", 0, js_error_toString ),
-    JS_PROP_STRING_DEF("name", "Error", JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
-    JS_PROP_STRING_DEF("message", "", JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
-};
-
-/* Array */
-
-static int JS_CopySubArray(JSContext *ctx,
-                           JSValueConst obj, int64_t to_pos,
-                           int64_t from_pos, int64_t count, int dir)
-{
-    int64_t i, from, to;
-    JSValue val;
-    int fromPresent;
-
-    /* XXX: should special case fast arrays */
-    for (i = 0; i < count; i++) {
-        if (dir < 0) {
-            from = from_pos + count - i - 1;
-            to = to_pos + count - i - 1;
-        } else {
-            from = from_pos + i;
-            to = to_pos + i;
-        }
-        fromPresent = JS_TryGetPropertyInt64(ctx, obj, from, &val);
-        if (fromPresent < 0)
-            goto exception;
-
-        if (fromPresent) {
-            if (JS_SetPropertyInt64(ctx, obj, to, val) < 0)
-                goto exception;
-        } else {
-            if (JS_DeletePropertyInt64(ctx, obj, to, JS_PROP_THROW) < 0)
-                goto exception;
-        }
-    }
-    return 0;
-
- exception:
-    return -1;
-}
-
-static JSValue js_array_constructor(JSContext *ctx, JSValueConst new_target,
-                                    int argc, JSValueConst *argv)
-{
-    JSValue obj;
-    int i;
-
-    obj = js_create_from_ctor(ctx, new_target, JS_CLASS_ARRAY);
-    if (JS_IsException(obj))
-        return obj;
-    if (argc == 1 && JS_IsNumber(argv[0])) {
-        uint32_t len;
-        if (JS_ToArrayLengthFree(ctx, &len, JS_DupValue(ctx, argv[0])))
-            goto fail;
-        if (JS_SetProperty(ctx, obj, JS_ATOM_length, JS_NewUint32(ctx, len)) < 0)
-            goto fail;
-    } else {
-        for(i = 0; i < argc; i++) {
-            if (JS_SetPropertyUint32(ctx, obj, i, JS_DupValue(ctx, argv[i])) < 0)
-                goto fail;
-        }
-    }
-    return obj;
-fail:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_from(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    // from(items, mapfn = void 0, this_arg = void 0)
-    JSValueConst items = argv[0], mapfn, this_arg;
-    JSValueConst args[2];
-    JSValue stack[2];
-    JSValue iter, r, v, v2, arrayLike;
-    int64_t k, len;
-    int done, mapping;
-
-    mapping = FALSE;
-    mapfn = JS_UNDEFINED;
-    this_arg = JS_UNDEFINED;
-    r = JS_UNDEFINED;
-    arrayLike = JS_UNDEFINED;
-    stack[0] = JS_UNDEFINED;
-    stack[1] = JS_UNDEFINED;
-
-    if (argc > 1) {
-        mapfn = argv[1];
-        if (!JS_IsUndefined(mapfn)) {
-            if (check_function(ctx, mapfn))
-                goto exception;
-            mapping = 1;
-            if (argc > 2)
-                this_arg = argv[2];
-        }
-    }
-    iter = JS_GetProperty(ctx, items, JS_ATOM_Symbol_iterator);
-    if (JS_IsException(iter))
-        goto exception;
-    if (!JS_IsUndefined(iter)) {
-        JS_FreeValue(ctx, iter);
-        if (JS_IsConstructor(ctx, this_val))
-            r = JS_CallConstructor(ctx, this_val, 0, NULL);
-        else
-            r = JS_NewArray(ctx);
-        if (JS_IsException(r))
-            goto exception;
-        stack[0] = JS_DupValue(ctx, items);
-        if (js_for_of_start(ctx, &stack[1], FALSE))
-            goto exception;
-        for (k = 0;; k++) {
-            v = JS_IteratorNext(ctx, stack[0], stack[1], 0, NULL, &done);
-            if (JS_IsException(v))
-                goto exception_close;
-            if (done)
-                break;
-            if (mapping) {
-                args[0] = v;
-                args[1] = JS_NewInt32(ctx, k);
-                v2 = JS_Call(ctx, mapfn, this_arg, 2, args);
-                JS_FreeValue(ctx, v);
-                v = v2;
-                if (JS_IsException(v))
-                    goto exception_close;
-            }
-            if (JS_DefinePropertyValueInt64(ctx, r, k, v,
-                                            JS_PROP_C_W_E | JS_PROP_THROW) < 0)
-                goto exception_close;
-        }
-    } else {
-        arrayLike = JS_ToObject(ctx, items);
-        if (JS_IsException(arrayLike))
-            goto exception;
-        if (js_get_length64(ctx, &len, arrayLike) < 0)
-            goto exception;
-        v = JS_NewInt64(ctx, len);
-        args[0] = v;
-        if (JS_IsConstructor(ctx, this_val)) {
-            r = JS_CallConstructor(ctx, this_val, 1, args);
-        } else {
-            r = js_array_constructor(ctx, JS_UNDEFINED, 1, args);
-        }
-        JS_FreeValue(ctx, v);
-        if (JS_IsException(r))
-            goto exception;
-        for(k = 0; k < len; k++) {
-            v = JS_GetPropertyInt64(ctx, arrayLike, k);
-            if (JS_IsException(v))
-                goto exception;
-            if (mapping) {
-                args[0] = v;
-                args[1] = JS_NewInt32(ctx, k);
-                v2 = JS_Call(ctx, mapfn, this_arg, 2, args);
-                JS_FreeValue(ctx, v);
-                v = v2;
-                if (JS_IsException(v))
-                    goto exception;
-            }
-            if (JS_DefinePropertyValueInt64(ctx, r, k, v,
-                                            JS_PROP_C_W_E | JS_PROP_THROW) < 0)
-                goto exception;
-        }
-    }
-    if (JS_SetProperty(ctx, r, JS_ATOM_length, JS_NewUint32(ctx, k)) < 0)
-        goto exception;
-    goto done;
-
- exception_close:
-    if (!JS_IsUndefined(stack[0]))
-        JS_IteratorClose(ctx, stack[0], TRUE);
- exception:
-    JS_FreeValue(ctx, r);
-    r = JS_EXCEPTION;
- done:
-    JS_FreeValue(ctx, arrayLike);
-    JS_FreeValue(ctx, stack[0]);
-    JS_FreeValue(ctx, stack[1]);
-    return r;
-}
-
-static JSValue js_array_of(JSContext *ctx, JSValueConst this_val,
-                           int argc, JSValueConst *argv)
-{
-    JSValue obj, args[1];
-    int i;
-
-    if (JS_IsConstructor(ctx, this_val)) {
-        args[0] = JS_NewInt32(ctx, argc);
-        obj = JS_CallConstructor(ctx, this_val, 1, (JSValueConst *)args);
-    } else {
-        obj = JS_NewArray(ctx);
-    }
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-    for(i = 0; i < argc; i++) {
-        if (JS_CreateDataPropertyUint32(ctx, obj, i, JS_DupValue(ctx, argv[i]),
-                                        JS_PROP_THROW) < 0) {
-            goto fail;
-        }
-    }
-    if (JS_SetProperty(ctx, obj, JS_ATOM_length, JS_NewUint32(ctx, argc)) < 0) {
-    fail:
-        JS_FreeValue(ctx, obj);
-        return JS_EXCEPTION;
-    }
-    return obj;
-}
-
-static JSValue js_array_isArray(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    int ret;
-    ret = JS_IsArray(ctx, argv[0]);
-    if (ret < 0)
-        return JS_EXCEPTION;
-    else
-        return JS_NewBool(ctx, ret);
-}
-
-static JSValue js_get_this(JSContext *ctx,
-                           JSValueConst this_val)
-{
-    return JS_DupValue(ctx, this_val);
-}
-
-static JSValue JS_ArraySpeciesCreate(JSContext *ctx, JSValueConst obj,
-                                     JSValueConst len_val)
-{
-    JSValue ctor, ret;
-    int res;
-
-    res = JS_IsArray(ctx, obj);
-    if (res < 0)
-        return JS_EXCEPTION;
-    if (!res)
-        return js_array_constructor(ctx, JS_UNDEFINED, 1, &len_val);
-    ctor = JS_SpeciesConstructor(ctx, obj, JS_UNDEFINED);
-    if (JS_IsException(ctor))
-        return JS_EXCEPTION;
-    if (JS_IsUndefined(ctor))
-        return js_array_constructor(ctx, JS_UNDEFINED, 1, &len_val);
-    ret = JS_CallConstructor(ctx, ctor, 1, &len_val);
-    JS_FreeValue(ctx, ctor);
-    return ret;
-}
-
-static const JSCFunctionListEntry js_array_funcs[] = {
-    JS_CFUNC_DEF("isArray", 1, js_array_isArray ),
-    JS_CFUNC_DEF("from", 1, js_array_from ),
-    JS_CFUNC_DEF("of", 0, js_array_of ),
-    JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
-};
-
-static int JS_isConcatSpreadable(JSContext *ctx, JSValueConst obj)
-{
-    JSValue val;
-
-    if (!JS_IsObject(obj))
-        return FALSE;
-    val = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_isConcatSpreadable);
-    if (JS_IsException(val))
-        return -1;
-    if (!JS_IsUndefined(val))
-        return JS_ToBoolFree(ctx, val);
-    return JS_IsArray(ctx, obj);
-}
-
-static JSValue js_array_concat(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv)
-{
-    JSValue obj, arr, val;
-    JSValueConst e;
-    int64_t len, k, n;
-    int i, res;
-
-    arr = JS_UNDEFINED;
-    obj = JS_ToObject(ctx, this_val);
-    if (JS_IsException(obj))
-        goto exception;
-
-    arr = JS_ArraySpeciesCreate(ctx, obj, JS_NewInt32(ctx, 0));
-    if (JS_IsException(arr))
-        goto exception;
-    n = 0;
-    for (i = -1; i < argc; i++) {
-        if (i < 0)
-            e = obj;
-        else
-            e = argv[i];
-
-        res = JS_isConcatSpreadable(ctx, e);
-        if (res < 0)
-            goto exception;
-        if (res) {
-            if (js_get_length64(ctx, &len, e))
-                goto exception;
-            if (n + len >= MAX_SAFE_INTEGER) {
-                JS_ThrowTypeError(ctx, "Array loo long");
-                goto exception;
-            }
-            for (k = 0; k < len; k++, n++) {
-                res = JS_TryGetPropertyInt64(ctx, e, k, &val);
-                if (res < 0)
-                    goto exception;
-                if (res) {
-                    if (JS_DefinePropertyValueInt64(ctx, arr, n, val,
-                                                    JS_PROP_C_W_E | JS_PROP_THROW) < 0)
-                        goto exception;
-                }
-            }
-        } else {
-            if (n >= MAX_SAFE_INTEGER) {
-                JS_ThrowTypeError(ctx, "Array loo long");
-                goto exception;
-            }
-            if (JS_DefinePropertyValueInt64(ctx, arr, n, JS_DupValue(ctx, e),
-                                            JS_PROP_C_W_E | JS_PROP_THROW) < 0)
-                goto exception;
-            n++;
-        }
-    }
-    if (JS_SetProperty(ctx, arr, JS_ATOM_length, JS_NewInt64(ctx, n)) < 0)
-        goto exception;
-
-    JS_FreeValue(ctx, obj);
-    return arr;
-
-exception:
-    JS_FreeValue(ctx, arr);
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-#define special_every    0
-#define special_some     1
-#define special_forEach  2
-#define special_map      3
-#define special_filter   4
-#define special_TA       8
-
-static int js_typed_array_get_length_internal(JSContext *ctx, JSValueConst obj);
-
-static JSValue js_typed_array___speciesCreate(JSContext *ctx,
-                                              JSValueConst this_val,
-                                              int argc, JSValueConst *argv);
-
-static JSValue js_array_every(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv, int special)
-{
-    JSValue obj, val, index_val, res, ret;
-    JSValueConst args[3];
-    JSValueConst func, this_arg;
-    int64_t len, k, n;
-    int present;
-
-    ret = JS_UNDEFINED;
-    val = JS_UNDEFINED;
-    if (special & special_TA) {
-        obj = JS_DupValue(ctx, this_val);
-        len = js_typed_array_get_length_internal(ctx, obj);
-        if (len < 0)
-            goto exception;
-    } else {
-        obj = JS_ToObject(ctx, this_val);
-        if (js_get_length64(ctx, &len, obj))
-            goto exception;
-    }
-    func = argv[0];
-    this_arg = JS_UNDEFINED;
-    if (argc > 1)
-        this_arg = argv[1];
-        
-    if (check_function(ctx, func))
-        goto exception;
-
-    switch (special) {
-    case special_every:
-    case special_every | special_TA:
-        ret = JS_TRUE;
-        break;
-    case special_some:
-    case special_some | special_TA:
-        ret = JS_FALSE;
-        break;
-    case special_map:
-        /* XXX: JS_ArraySpeciesCreate should take int64_t */
-        ret = JS_ArraySpeciesCreate(ctx, obj, JS_NewInt64(ctx, len));
-        if (JS_IsException(ret))
-            goto exception;
-        break;
-    case special_filter:
-        ret = JS_ArraySpeciesCreate(ctx, obj, JS_NewInt32(ctx, 0));
-        if (JS_IsException(ret))
-            goto exception;
-        break;
-    case special_map | special_TA:
-        args[0] = obj;
-        args[1] = JS_NewInt32(ctx, len);
-        ret = js_typed_array___speciesCreate(ctx, JS_UNDEFINED, 2, args);
-        if (JS_IsException(ret))
-            goto exception;
-        break;
-    case special_filter | special_TA:
-        ret = JS_NewArray(ctx);
-        if (JS_IsException(ret))
-            goto exception;
-        break;
-    }
-    n = 0;
-
-    for(k = 0; k < len; k++) {
-        present = JS_TryGetPropertyInt64(ctx, obj, k, &val);
-        if (present < 0)
-            goto exception;
-        if (present) {
-            index_val = JS_NewInt64(ctx, k);
-            if (JS_IsException(index_val))
-                goto exception;
-            args[0] = val;
-            args[1] = index_val;
-            args[2] = obj;
-            res = JS_Call(ctx, func, this_arg, 3, args);
-            JS_FreeValue(ctx, index_val);
-            if (JS_IsException(res))
-                goto exception;
-            switch (special) {
-            case special_every:
-            case special_every | special_TA:
-                if (!JS_ToBoolFree(ctx, res)) {
-                    ret = JS_FALSE;
-                    goto done;
-                }
-                break;
-            case special_some:
-            case special_some | special_TA:
-                if (JS_ToBoolFree(ctx, res)) {
-                    ret = JS_TRUE;
-                    goto done;
-                }
-                break;
-            case special_map:
-                if (JS_DefinePropertyValueInt64(ctx, ret, k, res,
-                                                JS_PROP_C_W_E | JS_PROP_THROW) < 0)
-                    goto exception;
-                break;
-            case special_map | special_TA:
-                if (JS_SetPropertyValue(ctx, ret, JS_NewInt32(ctx, k), res, JS_PROP_THROW) < 0)
-                    goto exception;
-                break;
-            case special_filter:
-            case special_filter | special_TA:
-                if (JS_ToBoolFree(ctx, res)) {
-                    if (JS_DefinePropertyValueInt64(ctx, ret, n++, JS_DupValue(ctx, val),
-                                                    JS_PROP_C_W_E | JS_PROP_THROW) < 0)
-                        goto exception;
-                }
-                break;
-            default:
-                JS_FreeValue(ctx, res);
-                break;
-            }
-            JS_FreeValue(ctx, val);
-            val = JS_UNDEFINED;
-        }
-    }
-done:
-    if (special == (special_filter | special_TA)) {
-        JSValue arr;
-        args[0] = obj;
-        args[1] = JS_NewInt32(ctx, n);
-        arr = js_typed_array___speciesCreate(ctx, JS_UNDEFINED, 2, args);
-        if (JS_IsException(arr))
-            goto exception;
-        args[0] = ret;
-        res = JS_Invoke(ctx, arr, JS_ATOM_set, 1, args);
-        if (check_exception_free(ctx, res))
-            goto exception;
-        JS_FreeValue(ctx, ret);
-        ret = arr;
-    }
-    JS_FreeValue(ctx, val);
-    JS_FreeValue(ctx, obj);
-    return ret;
-
-exception:
-    JS_FreeValue(ctx, ret);
-    JS_FreeValue(ctx, val);
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-#define special_reduce       0
-#define special_reduceRight  1
-
-static JSValue js_array_reduce(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv, int special)
-{
-    JSValue obj, val, index_val, acc, acc1;
-    JSValueConst args[4];
-    JSValueConst func;
-    int64_t len, k, k1;
-    int present;
-
-    acc = JS_UNDEFINED;
-    val = JS_UNDEFINED;
-    if (special & special_TA) {
-        obj = JS_DupValue(ctx, this_val);
-        len = js_typed_array_get_length_internal(ctx, obj);
-        if (len < 0)
-            goto exception;
-    } else {
-        obj = JS_ToObject(ctx, this_val);
-        if (js_get_length64(ctx, &len, obj))
-            goto exception;
-    }
-    func = argv[0];
-
-    if (check_function(ctx, func))
-        goto exception;
-
-    k = 0;
-    if (argc > 1) {
-        acc = JS_DupValue(ctx, argv[1]);
-    } else {
-        for(;;) {
-            if (k >= len) {
-                JS_ThrowTypeError(ctx, "empty array");
-                goto exception;
-            }
-            k1 = (special & special_reduceRight) ? len - k - 1 : k;
-            k++;
-            present = JS_TryGetPropertyInt64(ctx, obj, k1, &acc);
-            if (present < 0)
-                goto exception;
-            if (present)
-                break;
-        }
-    }
-    for (; k < len; k++) {
-        k1 = (special & special_reduceRight) ? len - k - 1 : k;
-        present = JS_TryGetPropertyInt64(ctx, obj, k1, &val);
-        if (present < 0)
-            goto exception;
-        if (present) {
-            index_val = JS_NewInt64(ctx, k1);
-            if (JS_IsException(index_val))
-                goto exception;
-            args[0] = acc;
-            args[1] = val;
-            args[2] = index_val;
-            args[3] = obj;
-            acc1 = JS_Call(ctx, func, JS_UNDEFINED, 4, args);
-            JS_FreeValue(ctx, index_val);
-            JS_FreeValue(ctx, val);
-            val = JS_UNDEFINED;
-            if (JS_IsException(acc1))
-                goto exception;
-            JS_FreeValue(ctx, acc);
-            acc = acc1;
-        }
-    }
-    JS_FreeValue(ctx, obj);
-    return acc;
-
-exception:
-    JS_FreeValue(ctx, acc);
-    JS_FreeValue(ctx, val);
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_fill(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    JSValue obj;
-    int64_t len, start, end;
-
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &len, obj))
-        goto exception;
-
-    start = 0;
-    if (argc > 1 && !JS_IsUndefined(argv[1])) {
-        if (JS_ToInt64Clamp(ctx, &start, argv[1], 0, len, len))
-            goto exception;
-    }
-
-    end = len;
-    if (argc > 2 && !JS_IsUndefined(argv[2])) {
-        if (JS_ToInt64Clamp(ctx, &end, argv[2], 0, len, len))
-            goto exception;
-    }
-
-    /* XXX: should special case fast arrays */
-    while (start < end) {
-        if (JS_SetPropertyInt64(ctx, obj, start,
-                                JS_DupValue(ctx, argv[0])) < 0)
-            goto exception;
-        start++;
-    }
-    return obj;
-
- exception:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_includes(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    JSValue obj, val;
-    int64_t len, n, res;
-    JSValue *arrp;
-    uint32_t count;
-
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &len, obj))
-        goto exception;
-
-    res = FALSE;
-    if (len > 0) {
-        n = 0;
-        if (argc > 1) {
-            if (JS_ToInt64Clamp(ctx, &n, argv[1], 0, len, len))
-                goto exception;
-        }
-        if (js_get_fast_array(ctx, obj, &arrp, &count)) {
-            for (; n < count; n++) {
-                if (js_strict_eq2(ctx, JS_DupValue(ctx, argv[0]),
-                                  JS_DupValue(ctx, arrp[n]),
-                                  JS_EQ_SAME_VALUE_ZERO)) {
-                    res = TRUE;
-                    goto done;
-                }
-            }
-        }
-        for (; n < len; n++) {
-            val = JS_GetPropertyInt64(ctx, obj, n);
-            if (JS_IsException(val))
-                goto exception;
-            if (js_strict_eq2(ctx, JS_DupValue(ctx, argv[0]), val,
-                              JS_EQ_SAME_VALUE_ZERO)) {
-                res = TRUE;
-                break;
-            }
-        }
-    }
- done:
-    JS_FreeValue(ctx, obj);
-    return JS_NewBool(ctx, res);
-
- exception:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_indexOf(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSValue obj, val;
-    int64_t len, n, res;
-    JSValue *arrp;
-    uint32_t count;
-
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &len, obj))
-        goto exception;
-
-    res = -1;
-    if (len > 0) {
-        n = 0;
-        if (argc > 1) {
-            if (JS_ToInt64Clamp(ctx, &n, argv[1], 0, len, len))
-                goto exception;
-        }
-        if (js_get_fast_array(ctx, obj, &arrp, &count)) {
-            for (; n < count; n++) {
-                if (js_strict_eq2(ctx, JS_DupValue(ctx, argv[0]),
-                                  JS_DupValue(ctx, arrp[n]), JS_EQ_STRICT)) {
-                    res = n;
-                    goto done;
-                }
-            }
-        }
-        for (; n < len; n++) {
-            int present = JS_TryGetPropertyInt64(ctx, obj, n, &val);
-            if (present < 0)
-                goto exception;
-            if (present) {
-                if (js_strict_eq2(ctx, JS_DupValue(ctx, argv[0]), val, JS_EQ_STRICT)) {
-                    res = n;
-                    break;
-                }
-            }
-        }
-    }
- done:
-    JS_FreeValue(ctx, obj);
-    return JS_NewInt64(ctx, res);
-
- exception:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_lastIndexOf(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    JSValue obj, val;
-    int64_t len, n, res;
-    int present;
-
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &len, obj))
-        goto exception;
-
-    res = -1;
-    if (len > 0) {
-        n = len - 1;
-        if (argc > 1) {
-            if (JS_ToInt64Clamp(ctx, &n, argv[1], -1, len - 1, len))
-                goto exception;
-        }
-        /* XXX: should special case fast arrays */
-        for (; n >= 0; n--) {
-            present = JS_TryGetPropertyInt64(ctx, obj, n, &val);
-            if (present < 0)
-                goto exception;
-            if (present) {
-                if (js_strict_eq2(ctx, JS_DupValue(ctx, argv[0]), val, JS_EQ_STRICT)) {
-                    res = n;
-                    break;
-                }
-            }
-        }
-    }
-    JS_FreeValue(ctx, obj);
-    return JS_NewInt64(ctx, res);
-
- exception:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_find(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv, int findIndex)
-{
-    JSValueConst func, this_arg;
-    JSValueConst args[3];
-    JSValue obj, val, index_val, res;
-    int64_t len, k;
-
-    index_val = JS_UNDEFINED;
-    val = JS_UNDEFINED;
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &len, obj))
-        goto exception;
-
-    func = argv[0];
-    if (check_function(ctx, func))
-        goto exception;
-
-    this_arg = JS_UNDEFINED;
-    if (argc > 1)
-        this_arg = argv[1];
-
-    for(k = 0; k < len; k++) {
-        index_val = JS_NewInt64(ctx, k);
-        if (JS_IsException(index_val))
-            goto exception;
-        val = JS_GetPropertyValue(ctx, obj, index_val);
-        if (JS_IsException(val))
-            goto exception;
-        args[0] = val;
-        args[1] = index_val;
-        args[2] = this_val;
-        res = JS_Call(ctx, func, this_arg, 3, args);
-        if (JS_IsException(res))
-            goto exception;
-        if (JS_ToBoolFree(ctx, res)) {
-            if (findIndex) {
-                JS_FreeValue(ctx, val);
-                JS_FreeValue(ctx, obj);
-                return index_val;
-            } else {
-                JS_FreeValue(ctx, index_val);
-                JS_FreeValue(ctx, obj);
-                return val;
-            }
-        }
-        JS_FreeValue(ctx, val);
-        JS_FreeValue(ctx, index_val);
-    }
-    JS_FreeValue(ctx, obj);
-    if (findIndex)
-        return JS_NewInt32(ctx, -1);
-    else
-        return JS_UNDEFINED;
-
-exception:
-    JS_FreeValue(ctx, index_val);
-    JS_FreeValue(ctx, val);
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_toString(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    JSValue obj, method, ret;
-
-    obj = JS_ToObject(ctx, this_val);
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-    method = JS_GetProperty(ctx, obj, JS_ATOM_join);
-    if (JS_IsException(method)) {
-        ret = JS_EXCEPTION;
-    } else
-    if (!JS_IsFunction(ctx, method)) {
-        /* Use intrinsic Object.prototype.toString */
-        JS_FreeValue(ctx, method);
-        ret = js_object_toString(ctx, obj, 0, NULL);
-    } else {
-        ret = JS_CallFree(ctx, method, obj, 0, NULL);
-    }
-    JS_FreeValue(ctx, obj);
-    return ret;
-}
-
-static JSValue js_array_join(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv, int toLocaleString)
-{
-    JSValue obj, sep = JS_UNDEFINED, el;
-    StringBuffer b_s, *b = &b_s;
-    JSString *p = NULL;
-    int64_t i, n;
-    int c;
-
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &n, obj))
-        goto exception;
-
-    c = ',';    /* default separator */
-    if (!toLocaleString && argc > 0 && !JS_IsUndefined(argv[0])) {
-        sep = JS_ToString(ctx, argv[0]);
-        if (JS_IsException(sep))
-            goto exception;
-        p = JS_VALUE_GET_STRING(sep);
-        if (p->len == 1 && !p->is_wide_char)
-            c = p->u.str8[0];
-        else
-            c = -1;
-    }
-    string_buffer_init(ctx, b, 0);
-
-    for(i = 0; i < n; i++) {
-        if (i > 0) {
-            if (c >= 0) {
-                string_buffer_putc8(b, c);
-            } else {
-                string_buffer_concat(b, p, 0, p->len);
-            }
-        }
-        el = JS_GetPropertyUint32(ctx, obj, i);
-        if (JS_IsException(el))
-            goto fail;
-        if (!JS_IsNull(el) && !JS_IsUndefined(el)) {
-            if (toLocaleString) {
-                el = JS_ToLocaleStringFree(ctx, el);
-            }
-            if (string_buffer_concat_value_free(b, el))
-                goto fail;
-        }
-    }
-    JS_FreeValue(ctx, sep);
-    JS_FreeValue(ctx, obj);
-    return string_buffer_end(b);
-
-fail:
-    string_buffer_free(b);
-    JS_FreeValue(ctx, sep);
-exception:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_pop(JSContext *ctx, JSValueConst this_val,
-                            int argc, JSValueConst *argv, int shift)
-{
-    JSValue obj, res = JS_UNDEFINED;
-    int64_t len, newLen;
-    JSValue *arrp;
-    uint32_t count32;
-
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &len, obj))
-        goto exception;
-    newLen = 0;
-    if (len > 0) {
-        newLen = len - 1;
-        /* Special case fast arrays */
-        if (js_get_fast_array(ctx, obj, &arrp, &count32) && count32 == len) {
-            JSObject *p = JS_VALUE_GET_OBJ(obj);
-            if (shift) {
-                res = arrp[0];
-                memmove(arrp, arrp + 1, (count32 - 1) * sizeof(*arrp));
-                p->u.array.count--;
-            } else {
-                res = arrp[count32 - 1];
-                p->u.array.count--;
-            }
-        } else {
-            if (shift) {
-                res = JS_GetPropertyInt64(ctx, obj, 0);
-                if (JS_IsException(res))
-                    goto exception;
-                if (JS_CopySubArray(ctx, obj, 0, 1, len - 1, +1))
-                    goto exception;
-            } else {
-                res = JS_GetPropertyInt64(ctx, obj, newLen);
-                if (JS_IsException(res))
-                    goto exception;
-            }
-            if (JS_DeletePropertyInt64(ctx, obj, newLen, JS_PROP_THROW) < 0)
-                goto exception;
-        }
-    }
-    if (JS_SetProperty(ctx, obj, JS_ATOM_length, JS_NewInt64(ctx, newLen)) < 0)
-        goto exception;
-
-    JS_FreeValue(ctx, obj);
-    return res;
-
- exception:
-    JS_FreeValue(ctx, res);
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_push(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv, int unshift)
-{
-    JSValue obj;
-    int i;
-    int64_t len, from, newLen;
-
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &len, obj))
-        goto exception;
-    newLen = len + argc;
-    if (newLen > MAX_SAFE_INTEGER) {
-        JS_ThrowTypeError(ctx, "Array loo long");
-        goto exception;
-    }
-    from = len;
-    if (unshift && argc > 0) {
-        if (JS_CopySubArray(ctx, obj, argc, 0, len, -1))
-            goto exception;
-        from = 0;
-    }
-    for(i = 0; i < argc; i++) {
-        if (JS_SetPropertyInt64(ctx, obj, from + i,
-                                JS_DupValue(ctx, argv[i])) < 0)
-            goto exception;
-    }
-    if (JS_SetProperty(ctx, obj, JS_ATOM_length, JS_NewInt64(ctx, newLen)) < 0)
-        goto exception;
-
-    JS_FreeValue(ctx, obj);
-    return JS_NewInt64(ctx, newLen);
-
- exception:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_reverse(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSValue obj, lval, hval;
-    JSValue *arrp;
-    int64_t len, l, h;
-    int l_present, h_present;
-    uint32_t count32;
-
-    lval = JS_UNDEFINED;
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &len, obj))
-        goto exception;
-
-    /* Special case fast arrays */
-    if (js_get_fast_array(ctx, obj, &arrp, &count32) && count32 == len) {
-        uint32_t ll, hh;
-
-        if (count32 > 1) {
-            for (ll = 0, hh = count32 - 1; ll < hh; ll++, hh--) {
-                lval = arrp[ll];
-                arrp[ll] = arrp[hh];
-                arrp[hh] = lval;
-            }
-        }
-        return obj;
-    }
-
-    for (l = 0, h = len - 1; l < h; l++, h--) {
-        l_present = JS_TryGetPropertyInt64(ctx, obj, l, &lval);
-        if (l_present < 0)
-            goto exception;
-        h_present = JS_TryGetPropertyInt64(ctx, obj, h, &hval);
-        if (h_present < 0)
-            goto exception;
-        if (h_present) {
-            if (JS_SetPropertyInt64(ctx, obj, l, hval) < 0)
-                goto exception;
-
-            if (l_present) {
-                if (JS_SetPropertyInt64(ctx, obj, h, lval) < 0) {
-                    lval = JS_UNDEFINED;
-                    goto exception;
-                }
-                lval = JS_UNDEFINED;
-            } else {
-                if (JS_DeletePropertyInt64(ctx, obj, h, JS_PROP_THROW) < 0)
-                    goto exception;
-            }
-        } else {
-            if (l_present) {
-                if (JS_DeletePropertyInt64(ctx, obj, l, JS_PROP_THROW) < 0)
-                    goto exception;
-                if (JS_SetPropertyInt64(ctx, obj, h, lval) < 0) {
-                    lval = JS_UNDEFINED;
-                    goto exception;
-                }
-                lval = JS_UNDEFINED;
-            }
-        }
-    }
-    return obj;
-
- exception:
-    JS_FreeValue(ctx, lval);
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_slice(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv, int splice)
-{
-    JSValue obj, arr, val, len_val;
-    int64_t len, start, k, final, n, count, del_count, new_len;
-    int kPresent;
-    JSValue *arrp;
-    uint32_t count32, i, item_count;
-
-    arr = JS_UNDEFINED;
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &len, obj))
-        goto exception;
-
-    if (JS_ToInt64Clamp(ctx, &start, argv[0], 0, len, len))
-        goto exception;
-
-    if (splice) {
-        if (argc == 0) {
-            item_count = 0;
-            del_count = 0;
-        } else
-        if (argc == 1) {
-            item_count = 0;
-            del_count = len - start;
-        } else {
-            item_count = argc - 2;
-            if (JS_ToInt64Clamp(ctx, &del_count, argv[1], 0, len - start, 0))
-                goto exception;
-        }
-        if (len + item_count - del_count > MAX_SAFE_INTEGER) {
-            JS_ThrowTypeError(ctx, "Array loo long");
-            goto exception;
-        }
-        count = del_count;
-    } else {
-        item_count = 0; /* avoid warning */
-        final = len;
-        if (!JS_IsUndefined(argv[1])) {
-            if (JS_ToInt64Clamp(ctx, &final, argv[1], 0, len, len))
-                goto exception;
-        }
-        count = max_int64(final - start, 0);
-    }
-    len_val = JS_NewInt64(ctx, count);
-    arr = JS_ArraySpeciesCreate(ctx, obj, len_val);
-    JS_FreeValue(ctx, len_val);
-    if (JS_IsException(arr))
-        goto exception;
-
-    k = start;
-    final = start + count;
-    n = 0;
-    /* The fast array test on arr ensures that
-       JS_CreateDataPropertyUint32() won't modify obj in case arr is
-       an exotic object */
-    /* Special case fast arrays */
-    if (js_get_fast_array(ctx, obj, &arrp, &count32) &&
-        js_is_fast_array(ctx, arr)) {
-        /* XXX: should share code with fast array constructor */
-        for (; k < final && k < count32; k++, n++) {
-            if (JS_CreateDataPropertyUint32(ctx, arr, n, JS_DupValue(ctx, arrp[k]), JS_PROP_THROW) < 0)
-                goto exception;
-        }
-    }
-    /* Copy the remaining elements if any (handle case of inherited properties) */
-    for (; k < final; k++, n++) {
-        kPresent = JS_TryGetPropertyInt64(ctx, obj, k, &val);
-        if (kPresent < 0)
-            goto exception;
-        if (kPresent) {
-            if (JS_CreateDataPropertyUint32(ctx, arr, n, val, JS_PROP_THROW) < 0)
-                goto exception;
-        }
-    }
-    if (JS_SetProperty(ctx, arr, JS_ATOM_length, JS_NewInt64(ctx, n)) < 0)
-        goto exception;
-
-    if (splice) {
-        new_len = len + item_count - del_count;
-        if (item_count != del_count) {
-            if (JS_CopySubArray(ctx, obj, start + item_count,
-                                start + del_count, len - (start + del_count),
-                                item_count <= del_count ? +1 : -1) < 0)
-                goto exception;
-
-            for (k = len; k-- > new_len; ) {
-                if (JS_DeletePropertyInt64(ctx, obj, k, JS_PROP_THROW) < 0)
-                    goto exception;
-            }
-        }
-        for (i = 0; i < item_count; i++) {
-            if (JS_SetPropertyInt64(ctx, obj, start + i, JS_DupValue(ctx, argv[i + 2])) < 0)
-                goto exception;
-        }
-        if (JS_SetProperty(ctx, obj, JS_ATOM_length, JS_NewInt64(ctx, new_len)) < 0)
-            goto exception;
-    }
-    JS_FreeValue(ctx, obj);
-    return arr;
-
- exception:
-    JS_FreeValue(ctx, obj);
-    JS_FreeValue(ctx, arr);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_copyWithin(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    JSValue obj;
-    int64_t len, from, to, final, count;
-
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &len, obj))
-        goto exception;
-
-    if (JS_ToInt64Clamp(ctx, &to, argv[0], 0, len, len))
-        goto exception;
-
-    if (JS_ToInt64Clamp(ctx, &from, argv[1], 0, len, len))
-        goto exception;
-
-    final = len;
-    if (argc > 2 && !JS_IsUndefined(argv[2])) {
-        if (JS_ToInt64Clamp(ctx, &final, argv[2], 0, len, len))
-            goto exception;
-    }
-
-    count = min_int64(final - from, len - to);
-
-    if (JS_CopySubArray(ctx, obj, to, from, count,
-                        (from < to && to < from + count) ? -1 : +1))
-        goto exception;
-
-    return obj;
-
- exception:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static int64_t JS_FlattenIntoArray(JSContext *ctx, JSValueConst target,
-                                   JSValueConst source, int64_t sourceLen,
-                                   int64_t targetIndex, int depth,
-                                   JSValueConst mapperFunction,
-                                   JSValueConst thisArg)
-{
-    JSValue element;
-    int64_t sourceIndex, elementLen;
-    int present, is_array;
-
-    for (sourceIndex = 0; sourceIndex < sourceLen; sourceIndex++) {
-        present = JS_TryGetPropertyInt64(ctx, source, sourceIndex, &element);
-        if (present < 0)
-            return -1;
-        if (!present)
-            continue;
-        if (!JS_IsUndefined(mapperFunction)) {
-            JSValueConst args[3] = { element, JS_NewInt64(ctx, sourceIndex), source };
-            element = JS_Call(ctx, mapperFunction, thisArg, 3, args);
-            JS_FreeValue(ctx, (JSValue)args[0]);
-            JS_FreeValue(ctx, (JSValue)args[1]);
-            if (JS_IsException(element))
-                return -1;
-        }
-        if (depth > 0) {
-            is_array = JS_IsArray(ctx, element);
-            if (is_array < 0)
-                goto fail;
-            if (is_array) {
-                if (js_get_length64(ctx, &elementLen, element) < 0)
-                    goto fail;
-                targetIndex = JS_FlattenIntoArray(ctx, target, element,
-                                                  elementLen, targetIndex,
-                                                  depth - 1,
-                                                  JS_UNDEFINED, JS_UNDEFINED);
-                if (targetIndex < 0)
-                    goto fail;
-                JS_FreeValue(ctx, element);
-                continue;
-            }
-        }
-        if (targetIndex >= MAX_SAFE_INTEGER) {
-            JS_ThrowTypeError(ctx, "Array too long");
-            goto fail;
-        }
-        if (JS_SetPropertyInt64(ctx, target, targetIndex, element) < 0)
-            return -1;
-        targetIndex++;
-    }
-    return targetIndex;
-
-fail:
-    JS_FreeValue(ctx, element);
-    return -1;
-}
-
-static JSValue js_array_flatten(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv, int map)
-{
-    JSValue obj, arr;
-    JSValueConst mapperFunction, thisArg;
-    int64_t sourceLen;
-    int depthNum;
-
-    arr = JS_UNDEFINED;
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &sourceLen, obj))
-        goto exception;
-
-    depthNum = 1;
-    mapperFunction = JS_UNDEFINED;
-    thisArg = JS_UNDEFINED;
-    if (map) {
-        mapperFunction = argv[0];
-        if (argc > 1) {
-            thisArg = argv[1];
-        }
-        if (check_function(ctx, mapperFunction))
-            goto exception;
-    } else {
-        if (argc > 0 && !JS_IsUndefined(argv[0])) {
-            if (JS_ToInt32Sat(ctx, &depthNum, argv[0]) < 0)
-                goto exception;
-        }
-    }
-    arr = JS_ArraySpeciesCreate(ctx, obj, JS_NewInt32(ctx, 0));
-    if (JS_IsException(arr))
-        goto exception;
-    if (JS_FlattenIntoArray(ctx, arr, obj, sourceLen, 0, depthNum,
-                            mapperFunction, thisArg) < 0)
-        goto exception;
-    JS_FreeValue(ctx, obj);
-    return arr;
-
-exception:
-    JS_FreeValue(ctx, obj);
-    JS_FreeValue(ctx, arr);
-    return JS_EXCEPTION;
-}
-
-/* Array sort */
-
-typedef struct ValueSlot {
-    JSValue val;
-    JSString *str;
-    int64_t pos;
-} ValueSlot;
-
-struct array_sort_context {
-    JSContext *ctx;
-    int exception;
-    int has_method;
-    JSValueConst method;
-};
-
-static int js_array_cmp_generic(const void *a, const void *b, void *opaque) {
-    struct array_sort_context *psc = opaque;
-    JSContext *ctx = psc->ctx;
-    JSValueConst argv[2];
-    JSValue res;
-    ValueSlot *ap = (ValueSlot *)(void *)a;
-    ValueSlot *bp = (ValueSlot *)(void *)b;
-    int cmp;
-
-    if (psc->exception)
-        return 0;
-
-    if (psc->has_method) {
-        /* custom sort function is specified as returning 0 for identical
-         * objects: avoid method call overhead.
-         */
-        if (!memcmp(&ap->val, &bp->val, sizeof(ap->val)))
-            goto cmp_same;
-        argv[0] = ap->val;
-        argv[1] = bp->val;
-        res = JS_Call(ctx, psc->method, JS_UNDEFINED, 2, argv);
-        if (JS_IsException(res))
-            goto exception;
-        if (JS_VALUE_GET_TAG(res) == JS_TAG_INT) {
-            int val = JS_VALUE_GET_INT(res);
-            cmp = (val > 0) - (val < 0);
-        } else {
-            double val;
-            if (JS_ToFloat64Free(ctx, &val, res) < 0)
-                goto exception;
-            cmp = (val > 0) - (val < 0);
-        }
-    } else {
-        /* Not supposed to bypass ToString even for identical objects as
-         * tested in test262/test/built-ins/Array/prototype/sort/bug_596_1.js
-         */
-        if (!ap->str) {
-            JSValue str = JS_ToString(ctx, ap->val);
-            if (JS_IsException(str))
-                goto exception;
-            ap->str = JS_VALUE_GET_STRING(str);
-        }
-        if (!bp->str) {
-            JSValue str = JS_ToString(ctx, bp->val);
-            if (JS_IsException(str))
-                goto exception;
-            bp->str = JS_VALUE_GET_STRING(str);
-        }
-        cmp = js_string_compare(ctx, ap->str, bp->str);
-    }
-    if (cmp != 0)
-        return cmp;
-cmp_same:
-    /* make sort stable: compare array offsets */
-    return (ap->pos > bp->pos) - (ap->pos < bp->pos);
-
-exception:
-    psc->exception = 1;
-    return 0;
-}
-
-static JSValue js_array_sort(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    struct array_sort_context asc = { ctx, 0, 0, argv[0] };
-    JSValue obj = JS_UNDEFINED;
-    ValueSlot *array = NULL;
-    size_t array_size = 0, pos = 0, n = 0;
-    int64_t i, len, undefined_count = 0;
-    int present;
-
-    if (!JS_IsUndefined(asc.method)) {
-        if (check_function(ctx, asc.method))
-            goto exception;
-        asc.has_method = 1;
-    }
-    obj = JS_ToObject(ctx, this_val);
-    if (js_get_length64(ctx, &len, obj))
-        goto exception;
-
-    /* XXX: should special case fast arrays */
-    for (i = 0; i < len; i++) {
-        if (pos >= array_size) {
-            size_t new_size, slack;
-            ValueSlot *new_array;
-            new_size = (array_size + (array_size >> 1) + 31) & ~15;
-            new_array = js_realloc2(ctx, array, new_size * sizeof(*array), &slack);
-            if (new_array == NULL)
-                goto exception;
-            new_size += slack / sizeof(*new_array);
-            array = new_array;
-            array_size = new_size;
-        }
-        present = JS_TryGetPropertyInt64(ctx, obj, i, &array[pos].val);
-        if (present < 0)
-            goto exception;
-        if (present == 0)
-            continue;
-        if (JS_IsUndefined(array[pos].val)) {
-            undefined_count++;
-            continue;
-        }
-        array[pos].str = NULL;
-        array[pos].pos = i;
-        pos++;
-    }
-    rqsort(array, pos, sizeof(*array), js_array_cmp_generic, &asc);
-    if (asc.exception)
-        goto exception;
-
-    /* XXX: should special case fast arrays */
-    while (n < pos) {
-        if (array[n].str)
-            JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, array[n].str));
-        if (array[n].pos == n) {
-            JS_FreeValue(ctx, array[n].val);
-        } else {
-            if (JS_SetPropertyInt64(ctx, obj, n, array[n].val) < 0) {
-                n++;
-                goto exception;
-            }
-        }
-        n++;
-    }
-    js_free(ctx, array);
-    for (i = n; undefined_count-- > 0; i++) {
-        if (JS_SetPropertyInt64(ctx, obj, i, JS_UNDEFINED) < 0)
-            goto fail;
-    }
-    for (; i < len; i++) {
-        if (JS_DeletePropertyInt64(ctx, obj, i, JS_PROP_THROW) < 0)
-            goto fail;
-    }
-    return obj;
-
-exception:
-    for (; n < pos; n++) {
-        JS_FreeValue(ctx, array[n].val);
-        if (array[n].str)
-            JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, array[n].str));
-    }
-    js_free(ctx, array);
-fail:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-typedef struct JSArrayIteratorData {
-    JSValue obj;
-    JSIteratorKindEnum kind;
-    uint32_t idx;
-} JSArrayIteratorData;
-
-static void js_array_iterator_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSArrayIteratorData *it = p->u.array_iterator_data;
-    if (it) {
-        JS_FreeValueRT(rt, it->obj);
-        js_free_rt(rt, it);
-    }
-}
-
-static void js_array_iterator_mark(JSRuntime *rt, JSValueConst val,
-                                   JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSArrayIteratorData *it = p->u.array_iterator_data;
-    if (it) {
-        JS_MarkValue(rt, it->obj, mark_func);
-    }
-}
-
-static JSValue js_create_array(JSContext *ctx, int len, JSValueConst *tab)
-{
-    JSValue obj;
-    int i;
-
-    obj = JS_NewArray(ctx);
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-    for(i = 0; i < len; i++) {
-        if (JS_CreateDataPropertyUint32(ctx, obj, i, JS_DupValue(ctx, tab[i]), 0) < 0) {
-            JS_FreeValue(ctx, obj);
-            return JS_EXCEPTION;
-        }
-    }
-    return obj;
-}
-
-static JSValue js_create_array_iterator(JSContext *ctx, JSValueConst this_val,
-                                        int argc, JSValueConst *argv, int magic)
-{
-    JSValue enum_obj, arr;
-    JSArrayIteratorData *it;
-    JSIteratorKindEnum kind;
-    int class_id;
-
-    kind = magic & 3;
-    if (magic & 4) {
-        /* string iterator case */
-        arr = JS_ToStringCheckObject(ctx, this_val);
-        class_id = JS_CLASS_STRING_ITERATOR;
-    } else {
-        arr = JS_ToObject(ctx, this_val);
-        class_id = JS_CLASS_ARRAY_ITERATOR;
-    }
-    if (JS_IsException(arr))
-        goto fail;
-    enum_obj = JS_NewObjectClass(ctx, class_id);
-    if (JS_IsException(enum_obj))
-        goto fail;
-    it = js_malloc(ctx, sizeof(*it));
-    if (!it)
-        goto fail1;
-    it->obj = arr;
-    it->kind = kind;
-    it->idx = 0;
-    JS_SetOpaque(enum_obj, it);
-    return enum_obj;
- fail1:
-    JS_FreeValue(ctx, enum_obj);
- fail:
-    JS_FreeValue(ctx, arr);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_array_iterator_next(JSContext *ctx, JSValueConst this_val,
-                                      int argc, JSValueConst *argv,
-                                      BOOL *pdone, int magic)
-{
-    JSArrayIteratorData *it;
-    uint32_t len, idx;
-    JSValue val, obj;
-    JSObject *p;
-
-    it = JS_GetOpaque2(ctx, this_val, JS_CLASS_ARRAY_ITERATOR);
-    if (!it)
-        goto fail1;
-    if (JS_IsUndefined(it->obj))
-        goto done;
-    p = JS_VALUE_GET_OBJ(it->obj);
-    if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-        p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
-        if (typed_array_is_detached(ctx, p)) {
-            JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-            goto fail1;
-        }
-        len = p->u.array.count;
-    } else {
-        if (js_get_length32(ctx, &len, it->obj)) {
-        fail1:
-            *pdone = FALSE;
-            return JS_EXCEPTION;
-        }
-    }
-    idx = it->idx;
-    if (idx >= len) {
-        JS_FreeValue(ctx, it->obj);
-        it->obj = JS_UNDEFINED;
-    done:
-        *pdone = TRUE;
-        return JS_UNDEFINED;
-    }
-    it->idx = idx + 1;
-    *pdone = FALSE;
-    if (it->kind == JS_ITERATOR_KIND_KEY) {
-        return JS_NewUint32(ctx, idx);
-    } else {
-        val = JS_GetPropertyUint32(ctx, it->obj, idx);
-        if (JS_IsException(val))
-            return JS_EXCEPTION;
-        if (it->kind == JS_ITERATOR_KIND_VALUE) {
-            return val;
-        } else {
-            JSValueConst args[2];
-            JSValue num;
-            num = JS_NewUint32(ctx, idx);
-            args[0] = num;
-            args[1] = val;
-            obj = js_create_array(ctx, 2, args);
-            JS_FreeValue(ctx, val);
-            JS_FreeValue(ctx, num);
-            return obj;
-        }
-    }
-}
-
-static JSValue js_iterator_proto_iterator(JSContext *ctx, JSValueConst this_val,
-                                          int argc, JSValueConst *argv)
-{
-    return JS_DupValue(ctx, this_val);
-}
-
-static const JSCFunctionListEntry js_iterator_proto_funcs[] = {
-    JS_CFUNC_DEF("[Symbol.iterator]", 0, js_iterator_proto_iterator ),
-};
-
-static const JSCFunctionListEntry js_array_proto_funcs[] = {
-    JS_CFUNC_DEF("concat", 1, js_array_concat ),
-    JS_CFUNC_MAGIC_DEF("every", 1, js_array_every, special_every ),
-    JS_CFUNC_MAGIC_DEF("some", 1, js_array_every, special_some ),
-    JS_CFUNC_MAGIC_DEF("forEach", 1, js_array_every, special_forEach ),
-    JS_CFUNC_MAGIC_DEF("map", 1, js_array_every, special_map ),
-    JS_CFUNC_MAGIC_DEF("filter", 1, js_array_every, special_filter ),
-    JS_CFUNC_MAGIC_DEF("reduce", 1, js_array_reduce, special_reduce ),
-    JS_CFUNC_MAGIC_DEF("reduceRight", 1, js_array_reduce, special_reduceRight ),
-    JS_CFUNC_DEF("fill", 1, js_array_fill ),
-    JS_CFUNC_MAGIC_DEF("find", 1, js_array_find, 0 ),
-    JS_CFUNC_MAGIC_DEF("findIndex", 1, js_array_find, 1 ),
-    JS_CFUNC_DEF("indexOf", 1, js_array_indexOf ),
-    JS_CFUNC_DEF("lastIndexOf", 1, js_array_lastIndexOf ),
-    JS_CFUNC_DEF("includes", 1, js_array_includes ),
-    JS_CFUNC_MAGIC_DEF("join", 1, js_array_join, 0 ),
-    JS_CFUNC_DEF("toString", 0, js_array_toString ),
-    JS_CFUNC_MAGIC_DEF("toLocaleString", 0, js_array_join, 1 ),
-    JS_CFUNC_MAGIC_DEF("pop", 0, js_array_pop, 0 ),
-    JS_CFUNC_MAGIC_DEF("push", 1, js_array_push, 0 ),
-    JS_CFUNC_MAGIC_DEF("shift", 0, js_array_pop, 1 ),
-    JS_CFUNC_MAGIC_DEF("unshift", 1, js_array_push, 1 ),
-    JS_CFUNC_DEF("reverse", 0, js_array_reverse ),
-    JS_CFUNC_DEF("sort", 1, js_array_sort ),
-    JS_CFUNC_MAGIC_DEF("slice", 2, js_array_slice, 0 ),
-    JS_CFUNC_MAGIC_DEF("splice", 2, js_array_slice, 1 ),
-    JS_CFUNC_DEF("copyWithin", 2, js_array_copyWithin ),
-    JS_CFUNC_MAGIC_DEF("flatMap", 1, js_array_flatten, 1 ),
-    JS_CFUNC_MAGIC_DEF("flat", 0, js_array_flatten, 0 ),
-    JS_CFUNC_MAGIC_DEF("flatten", 0, js_array_flatten, 0 ),
-    JS_CFUNC_MAGIC_DEF("values", 0, js_create_array_iterator, JS_ITERATOR_KIND_VALUE ),
-    JS_ALIAS_DEF("[Symbol.iterator]", "values" ),
-    JS_CFUNC_MAGIC_DEF("keys", 0, js_create_array_iterator, JS_ITERATOR_KIND_KEY ),
-    JS_CFUNC_MAGIC_DEF("entries", 0, js_create_array_iterator, JS_ITERATOR_KIND_KEY_AND_VALUE ),
-};
-
-static const JSCFunctionListEntry js_array_iterator_proto_funcs[] = {
-    JS_ITERATOR_NEXT_DEF("next", 0, js_array_iterator_next, 0 ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Array Iterator", JS_PROP_CONFIGURABLE ),
-};
-
-/* Number */
-
-static JSValue js_number_constructor(JSContext *ctx, JSValueConst new_target,
-                                     int argc, JSValueConst *argv)
-{
-    JSValue val, obj;
-#ifdef CONFIG_BIGNUM
-    if (argc == 0) {
-        if (is_bignum_mode(ctx))
-            val = __JS_NewFloat64(ctx, 0);
-        else
-            val = JS_NewInt32(ctx, 0);
-    } else {
-        val = JS_ToNumeric(ctx, argv[0]);
-        if (JS_IsException(val))
-            return val;
-        switch(JS_VALUE_GET_TAG(val)) {
-        case JS_TAG_BIG_INT:
-        case JS_TAG_BIG_FLOAT:
-            {
-                JSBigFloat *p = JS_VALUE_GET_PTR(val);
-                double d;
-                bf_get_float64(&p->num, &d, BF_RNDN);
-                JS_FreeValue(ctx, val);
-                val = __JS_NewFloat64(ctx, d);
-            }
-            break;
-        case JS_TAG_INT:
-            if (is_bignum_mode(ctx)) {
-                /* always return a number in bignum mode */
-                val = __JS_NewFloat64(ctx, JS_VALUE_GET_INT(val));
-            }
-            break;
-        default:
-            break;
-        }
-    }
-#else
-    if (argc == 0) {
-        val = JS_NewInt32(ctx, 0);
-    } else {
-        val = JS_ToNumber(ctx, argv[0]);
-        if (JS_IsException(val))
-            return val;
-    }
-#endif
-    if (!JS_IsUndefined(new_target)) {
-        obj = js_create_from_ctor(ctx, new_target, JS_CLASS_NUMBER);
-        if (!JS_IsException(obj))
-            JS_SetObjectData(ctx, obj, val);
-        return obj;
-    } else {
-        return val;
-    }
-}
-
-#if 0
-static JSValue js_number___toInteger(JSContext *ctx, JSValueConst this_val,
-                                     int argc, JSValueConst *argv)
-{
-    return JS_ToIntegerFree(ctx, JS_DupValue(ctx, argv[0]));
-}
-
-static JSValue js_number___toLength(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    int64_t v;
-    if (JS_ToLengthFree(ctx, &v, JS_DupValue(ctx, argv[0])))
-        return JS_EXCEPTION;
-    return JS_NewInt64(ctx, v);
-}
-#endif
-
-static JSValue js_number_isNaN(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv)
-{
-    /* XXX: should just check for float and big_float */
-    if (!JS_IsNumber(argv[0]))
-        return JS_FALSE;
-    return js_global_isNaN(ctx, this_val, argc, argv);
-}
-
-static JSValue js_number_isFinite(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    if (!JS_IsNumber(argv[0]))
-        return JS_FALSE;
-    return js_global_isFinite(ctx, this_val, argc, argv);
-}
-
-static JSValue js_number_isInteger(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    int ret;
-    ret = JS_NumberIsInteger(ctx, argv[0]);
-    if (ret < 0)
-        return JS_EXCEPTION;
-    else
-        return JS_NewBool(ctx, ret);
-}
-
-static JSValue js_number_isSafeInteger(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    double d;
-    if (!JS_IsNumber(argv[0]))
-        return JS_FALSE;
-    if (unlikely(JS_ToFloat64(ctx, &d, argv[0])))
-        return JS_EXCEPTION;
-    return JS_NewBool(ctx, isfinite(d) && floor(d) == d &&
-                      fabs(d) <= (double)MAX_SAFE_INTEGER);
-}
-
-static const JSCFunctionListEntry js_number_funcs[] = {
-    /* global ParseInt and parseFloat should be defined already or delayed */
-    JS_ALIAS_BASE_DEF("parseInt", "parseInt", 0 ),
-    JS_ALIAS_BASE_DEF("parseFloat", "parseFloat", 0 ),
-    JS_CFUNC_DEF("isNaN", 1, js_number_isNaN ),
-    JS_CFUNC_DEF("isFinite", 1, js_number_isFinite ),
-    JS_CFUNC_DEF("isInteger", 1, js_number_isInteger ),
-    JS_CFUNC_DEF("isSafeInteger", 1, js_number_isSafeInteger ),
-    JS_PROP_DOUBLE_DEF("MAX_VALUE", 1.7976931348623157e+308, 0 ),
-    JS_PROP_DOUBLE_DEF("MIN_VALUE", 5e-324, 0 ),
-    JS_PROP_DOUBLE_DEF("NaN", NAN, 0 ),
-    JS_PROP_DOUBLE_DEF("NEGATIVE_INFINITY", -INFINITY, 0 ),
-    JS_PROP_DOUBLE_DEF("POSITIVE_INFINITY", INFINITY, 0 ),
-    JS_PROP_DOUBLE_DEF("EPSILON", 2.220446049250313e-16, 0 ), /* ES6 */
-    JS_PROP_DOUBLE_DEF("MAX_SAFE_INTEGER", 9007199254740991.0, 0 ), /* ES6 */
-    JS_PROP_DOUBLE_DEF("MIN_SAFE_INTEGER", -9007199254740991.0, 0 ), /* ES6 */
-    //JS_CFUNC_DEF("__toInteger", 1, js_number___toInteger ),
-    //JS_CFUNC_DEF("__toLength", 1, js_number___toLength ),
-};
-
-static JSValue js_thisNumberValue(JSContext *ctx, JSValueConst this_val)
-{
-    if (JS_IsNumber(this_val))
-        return JS_DupValue(ctx, this_val);
-
-    if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(this_val);
-        if (p->class_id == JS_CLASS_NUMBER) {
-            if (JS_IsNumber(p->u.object_data))
-                return JS_DupValue(ctx, p->u.object_data);
-        }
-    }
-    return JS_ThrowTypeError(ctx, "not a number");
-}
-
-static JSValue js_number_valueOf(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    return js_thisNumberValue(ctx, this_val);
-}
-
-static JSValue js_number_toString(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv, int magic)
-{
-    JSValue val;
-    int base;
-
-    val = js_thisNumberValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    if (magic || JS_IsUndefined(argv[0])) {
-        base = 10;
-    } else {
-        if (JS_ToInt32Sat(ctx, &base, argv[0]))
-            goto fail;
-        if (base < 2 || base > 36) {
-            JS_ThrowRangeError(ctx, "radix must be between 2 and 36");
-            goto fail;
-        }
-    }
-#ifdef CONFIG_BIGNUM
-    {
-        JSValue ret = js_ftoa(ctx, val, base, 0, BF_RNDN | BF_FTOA_FORMAT_FREE_MIN);
-        JS_FreeValue(ctx, val);
-        return ret;
-    }
-#else
-    {
-        double d;
-        if (JS_ToFloat64Free(ctx, &d, val))
-            return JS_EXCEPTION;
-        return js_dtoa(ctx, d, base, 0, JS_DTOA_VAR_FORMAT);
-    }
-#endif
- fail:
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-}
-
-#ifdef CONFIG_BIGNUM
-
-static JSValue js_thisBigFloatValue(JSContext *ctx, JSValueConst this_val);
-
-static int64_t js_number_get_prec_max(JSContext *ctx, int magic)
-{
-    if (magic)
-        return BF_PREC_MAX;
-    else
-        return 100;
-}
-
-static int get_rnd_mode(JSContext *ctx, JSValueConst val)
-{
-    int rnd_mode;
-    if (JS_ToInt32Sat(ctx, &rnd_mode, val))
-        return -1;
-    if (rnd_mode < BF_RNDN || rnd_mode > BF_RNDF) {
-        JS_ThrowRangeError(ctx, "invalid rounding mode");
-        return -1;
-    }
-    return rnd_mode;
-}
-
-static JSValue js_number_toFixed(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv, int magic)
-{
-    JSValue val, ret;
-    int64_t f;
-    int res, rnd_mode;
-    bf_t a_s, *a, b;
-    BOOL is_float;
-
-    if (magic)
-        val = js_thisBigFloatValue(ctx, this_val);
-    else
-        val = js_thisNumberValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    if (JS_ToInt64Sat(ctx, &f, argv[0]))
-        goto fail;
-    if (f < 0 || f > js_number_get_prec_max(ctx, magic)) {
-        JS_ThrowRangeError(ctx, "invalid number of digits");
-        goto fail;
-    }
-    rnd_mode = BF_RNDNA;
-    if (magic && argc > 1) {
-        rnd_mode = get_rnd_mode(ctx, argv[1]);
-        if (rnd_mode < 0)
-            goto fail;
-    }
-
-    a = JS_ToBigFloat(ctx, &is_float, &a_s, val);
-    if (!a)
-        goto fail;
-    bf_init(ctx->bf_ctx, &b);
-    bf_set_float64(&b, 1e21);
-    res = bf_cmpu(a, &b);
-    bf_delete(&b);
-    if (a == &a_s)
-        bf_delete(a);
-    if (res >= 0) {
-        ret = JS_ToString(ctx, val);
-    } else {
-        ret = js_ftoa(ctx, val, 10, f, rnd_mode | BF_FTOA_FORMAT_FRAC);
-    }
-    JS_FreeValue(ctx, val);
-    return ret;
- fail:
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_number_toExponential(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv, int magic)
-{
-    JSValue val, ret;
-    int64_t f;
-    int rnd_mode;
-
-    if (magic)
-        val = js_thisBigFloatValue(ctx, this_val);
-    else
-        val = js_thisNumberValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    if (JS_ToInt64Sat(ctx, &f, argv[0]))
-        goto fail;
-    if (!js_number_is_finite(ctx, val)) {
-        ret = JS_ToString(ctx, val);
-    } else if (JS_IsUndefined(argv[0])) {
-        ret = js_ftoa(ctx, val, 10, 0,
-                      BF_RNDN | BF_FTOA_FORMAT_FREE_MIN | BF_FTOA_FORCE_EXP);
-    } else {
-        if (f < 0 || f > js_number_get_prec_max(ctx, magic)) {
-            JS_ThrowRangeError(ctx, "invalid number of digits");
-            goto fail;
-        }
-        rnd_mode = BF_RNDNA;
-        if (magic && argc > 1) {
-            rnd_mode = get_rnd_mode(ctx, argv[1]);
-            if (rnd_mode < 0)
-                goto fail;
-        }
-        ret = js_ftoa(ctx, val, 10, f + 1,
-                      rnd_mode | BF_FTOA_FORMAT_FIXED | BF_FTOA_FORCE_EXP);
-    }
-    JS_FreeValue(ctx, val);
-    return ret;
- fail:
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_number_toPrecision(JSContext *ctx, JSValueConst this_val,
-                                     int argc, JSValueConst *argv, int magic)
-{
-    JSValue val, ret;
-    int64_t p;
-    int rnd_mode;
-
-    if (magic)
-        val = js_thisBigFloatValue(ctx, this_val);
-    else
-        val = js_thisNumberValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    if (JS_IsUndefined(argv[0]))
-        goto to_string;
-    if (JS_ToInt64Sat(ctx, &p, argv[0]))
-        goto fail;
-    if (!js_number_is_finite(ctx, val)) {
-    to_string:
-        ret = JS_ToString(ctx, this_val);
-    } else {
-        if (p < 1 || p > js_number_get_prec_max(ctx, magic)) {
-            JS_ThrowRangeError(ctx, "invalid number of digits");
-            goto fail;
-        }
-        rnd_mode = BF_RNDNA;
-        if (magic && argc > 1) {
-            rnd_mode = get_rnd_mode(ctx, argv[1]);
-            if (rnd_mode < 0)
-                goto fail;
-        }
-        ret = js_ftoa(ctx, val, 10, p, rnd_mode | BF_FTOA_FORMAT_FIXED);
-    }
-    JS_FreeValue(ctx, val);
-    return ret;
- fail:
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-
-}
-
-static const JSCFunctionListEntry js_number_proto_funcs[] = {
-    JS_CFUNC_MAGIC_DEF("toExponential", 1, js_number_toExponential, 0 ),
-    JS_CFUNC_MAGIC_DEF("toFixed", 1, js_number_toFixed, 0 ),
-    JS_CFUNC_MAGIC_DEF("toPrecision", 1, js_number_toPrecision, 0 ),
-    JS_CFUNC_MAGIC_DEF("toString", 1, js_number_toString, 0 ),
-    JS_CFUNC_MAGIC_DEF("toLocaleString", 0, js_number_toString, 1 ),
-    JS_CFUNC_DEF("valueOf", 0, js_number_valueOf ),
-};
-
-#else /* !CONFIG_BIGNUM */
-
-static JSValue js_number_toFixed(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    JSValue val;
-    int f;
-    double d;
-
-    val = js_thisNumberValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    if (JS_ToFloat64Free(ctx, &d, val))
-        return JS_EXCEPTION;
-    if (JS_ToInt32Sat(ctx, &f, argv[0]))
-        return JS_EXCEPTION;
-    if (f < 0 || f > 100)
-        return JS_ThrowRangeError(ctx, "invalid number of digits");
-    if (fabs(d) >= 1e21) {
-        return JS_ToStringFree(ctx, __JS_NewFloat64(ctx, d));
-    } else {
-        return js_dtoa(ctx, d, 10, f, JS_DTOA_FRAC_FORMAT);
-    }
-}
-
-static JSValue js_number_toExponential(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    JSValue val;
-    int f, flags;
-    double d;
-
-    val = js_thisNumberValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    if (JS_ToFloat64Free(ctx, &d, val))
-        return JS_EXCEPTION;
-    if (JS_ToInt32Sat(ctx, &f, argv[0]))
-        return JS_EXCEPTION;
-    if (!isfinite(d)) {
-        return JS_ToStringFree(ctx,  __JS_NewFloat64(ctx, d));
-    }
-    if (JS_IsUndefined(argv[0])) {
-        flags = 0;
-        f = 0;
-    } else {
-        if (f < 0 || f > 100)
-            return JS_ThrowRangeError(ctx, "invalid number of digits");
-        f++;
-        flags = JS_DTOA_FIXED_FORMAT;
-    }
-    return js_dtoa(ctx, d, 10, f, flags | JS_DTOA_FORCE_EXP);
-}
-
-static JSValue js_number_toPrecision(JSContext *ctx, JSValueConst this_val,
-                                     int argc, JSValueConst *argv)
-{
-    JSValue val;
-    int p;
-    double d;
-
-    val = js_thisNumberValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    if (JS_ToFloat64Free(ctx, &d, val))
-        return JS_EXCEPTION;
-    if (JS_IsUndefined(argv[0]))
-        goto to_string;
-    if (JS_ToInt32Sat(ctx, &p, argv[0]))
-        return JS_EXCEPTION;
-    if (!isfinite(d)) {
-    to_string:
-        return JS_ToStringFree(ctx,  __JS_NewFloat64(ctx, d));
-    }
-    if (p < 1 || p > 100)
-        return JS_ThrowRangeError(ctx, "invalid number of digits");
-    return js_dtoa(ctx, d, 10, p, JS_DTOA_FIXED_FORMAT);
-}
-
-static const JSCFunctionListEntry js_number_proto_funcs[] = {
-    JS_CFUNC_DEF("toExponential", 1, js_number_toExponential ),
-    JS_CFUNC_DEF("toFixed", 1, js_number_toFixed ),
-    JS_CFUNC_DEF("toPrecision", 1, js_number_toPrecision ),
-    JS_CFUNC_MAGIC_DEF("toString", 1, js_number_toString, 0 ),
-    JS_CFUNC_MAGIC_DEF("toLocaleString", 0, js_number_toString, 1 ),
-    JS_CFUNC_DEF("valueOf", 0, js_number_valueOf ),
-};
-
-#endif /* !CONFIG_BIGNUM */
-
-
-static JSValue js_parseInt(JSContext *ctx, JSValueConst this_val,
-                           int argc, JSValueConst *argv)
-{
-    const char *str;
-    int radix;
-    JSValue ret;
-
-    str = JS_ToCString(ctx, argv[0]);
-    if (!str)
-        return JS_EXCEPTION;
-    if (JS_ToInt32(ctx, &radix, argv[1])) {
-        JS_FreeCString(ctx, str);
-        return JS_EXCEPTION;
-    }
-    if (radix != 0 && (radix < 2 || radix > 36)) {
-        ret = JS_NAN;
-    } else {
-#ifdef CONFIG_BIGNUM
-        int flags;
-        flags = BF_ATOF_INT_ONLY | BF_ATOF_NAN_IF_EMPTY | BF_ATOF_FLOAT64;
-        if (is_bignum_mode(ctx))
-            flags |= BF_ATOF_INT_PREC_INF;
-        ret = js_atof(ctx, str, NULL, radix, flags);
-#else
-        ret = js_atod(ctx, str, NULL, radix, ATOD_INT_ONLY | ATOD_NAN_IF_EMPTY);
-#endif
-    }
-    JS_FreeCString(ctx, str);
-    return ret;
-}
-
-static JSValue js_parseFloat(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    const char *str;
-    JSValue ret;
-
-    str = JS_ToCString(ctx, argv[0]);
-    if (!str)
-        return JS_EXCEPTION;
-#ifdef CONFIG_BIGNUM
-    ret = js_atof(ctx, str, NULL, 10,
-                  BF_ATOF_JS_QUIRKS | BF_ATOF_NAN_IF_EMPTY | BF_ATOF_FLOAT64);
-#else
-    ret = js_atod(ctx, str, NULL, 10, ATOD_NAN_IF_EMPTY);
-#endif
-    JS_FreeCString(ctx, str);
-    return ret;
-}
-
-/* Boolean */
-static JSValue js_boolean_constructor(JSContext *ctx, JSValueConst new_target,
-                                     int argc, JSValueConst *argv)
-{
-    JSValue val, obj;
-    val = JS_NewBool(ctx, JS_ToBool(ctx, argv[0]));
-    if (!JS_IsUndefined(new_target)) {
-        obj = js_create_from_ctor(ctx, new_target, JS_CLASS_BOOLEAN);
-        if (!JS_IsException(obj))
-            JS_SetObjectData(ctx, obj, val);
-        return obj;
-    } else {
-        return val;
-    }
-}
-
-static JSValue js_thisBooleanValue(JSContext *ctx, JSValueConst this_val)
-{
-    if (JS_VALUE_GET_TAG(this_val) == JS_TAG_BOOL)
-        return JS_DupValue(ctx, this_val);
-
-    if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(this_val);
-        if (p->class_id == JS_CLASS_BOOLEAN) {
-            if (JS_VALUE_GET_TAG(p->u.object_data) == JS_TAG_BOOL)
-                return p->u.object_data;
-        }
-    }
-    return JS_ThrowTypeError(ctx, "not a boolean");
-}
-
-static JSValue js_boolean_toString(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    JSValue val = js_thisBooleanValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    return JS_AtomToString(ctx, JS_VALUE_GET_BOOL(val) ?
-                       JS_ATOM_true : JS_ATOM_false);
-}
-
-static JSValue js_boolean_valueOf(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    return js_thisBooleanValue(ctx, this_val);
-}
-
-static const JSCFunctionListEntry js_boolean_proto_funcs[] = {
-    JS_CFUNC_DEF("toString", 0, js_boolean_toString ),
-    JS_CFUNC_DEF("valueOf", 0, js_boolean_valueOf ),
-};
-
-/* String */
-
-static int js_string_get_own_property(JSContext *ctx,
-                                      JSPropertyDescriptor *desc,
-                                      JSValueConst obj, JSAtom prop)
-{
-    JSObject *p;
-    JSString *p1;
-    uint32_t idx, ch;
-
-    /* This is a class exotic method: obj class_id is JS_CLASS_STRING */
-    if (__JS_AtomIsTaggedInt(prop)) {
-        p = JS_VALUE_GET_OBJ(obj);
-        if (JS_VALUE_GET_TAG(p->u.object_data) == JS_TAG_STRING) {
-            p1 = JS_VALUE_GET_STRING(p->u.object_data);
-            idx = __JS_AtomToUInt32(prop);
-            if (idx < p1->len) {
-                if (desc) {
-                    if (p1->is_wide_char)
-                        ch = p1->u.str16[idx];
-                    else
-                        ch = p1->u.str8[idx];
-                    desc->flags = JS_PROP_ENUMERABLE;
-                    desc->value = js_new_string_char(ctx, ch);
-                    desc->getter = JS_UNDEFINED;
-                    desc->setter = JS_UNDEFINED;
-                }
-                return TRUE;
-            }
-        }
-    }
-    return FALSE;
-}
-
-static uint32_t js_string_obj_get_length(JSContext *ctx,
-                                         JSValueConst obj)
-{
-    JSObject *p;
-    JSString *p1;
-    uint32_t len = 0;
-
-    /* This is a class exotic method: obj class_id is JS_CLASS_STRING */
-    p = JS_VALUE_GET_OBJ(obj);
-    if (JS_VALUE_GET_TAG(p->u.object_data) == JS_TAG_STRING) {
-        p1 = JS_VALUE_GET_STRING(p->u.object_data);
-        len = p1->len;
-    }
-    return len;
-}
-
-static int js_string_get_own_property_names(JSContext *ctx,
-                                            JSPropertyEnum **ptab,
-                                            uint32_t *plen,
-                                            JSValueConst obj)
-{
-    JSPropertyEnum *tab;
-    uint32_t len, i;
-
-    len = js_string_obj_get_length(ctx, obj);
-    tab = NULL;
-    if (len > 0) {
-        /* do not allocate 0 bytes */
-        tab = js_malloc(ctx, sizeof(JSPropertyEnum) * len);
-        if (!tab)
-            return -1;
-        for(i = 0; i < len; i++) {
-            tab[i].atom = __JS_AtomFromUInt32(i);
-        }
-    }
-    *ptab = tab;
-    *plen = len;
-    return 0;
-}
-
-static int js_string_define_own_property(JSContext *ctx,
-                                         JSValueConst this_obj,
-                                         JSAtom prop, JSValueConst val,
-                                         JSValueConst getter,
-                                         JSValueConst setter, int flags)
-{
-    uint32_t idx;
-
-    if (__JS_AtomIsTaggedInt(prop)) {
-        idx = __JS_AtomToUInt32(prop);
-        if (idx >= js_string_obj_get_length(ctx, this_obj))
-            goto def;
-        if (!check_define_prop_flags(JS_PROP_ENUMERABLE, flags))
-            return JS_ThrowTypeErrorOrFalse(ctx, flags, "property is not configurable");
-        /* XXX: should check if same value is configured */
-        return TRUE;
-    } else {
-    def:
-        return JS_DefineProperty(ctx, this_obj, prop, val, getter, setter,
-                                 flags | JS_PROP_NO_EXOTIC);
-    }
-}
-
-static int js_string_delete_property(JSContext *ctx,
-                                     JSValueConst obj, JSAtom prop)
-{
-    uint32_t idx;
-
-    if (__JS_AtomIsTaggedInt(prop)) {
-        idx = __JS_AtomToUInt32(prop);
-        if (idx < js_string_obj_get_length(ctx, obj)) {
-            return FALSE;
-        }
-    }
-    return TRUE;
-}
-
-static const JSClassExoticMethods js_string_exotic_methods = {
-    .get_own_property = js_string_get_own_property,
-    .get_own_property_names = js_string_get_own_property_names,
-    .define_own_property = js_string_define_own_property,
-    .delete_property = js_string_delete_property,
-};
-
-static JSValue js_string_constructor(JSContext *ctx, JSValueConst new_target,
-                                     int argc, JSValueConst *argv)
-{
-    JSValue val, obj;
-    if (argc == 0) {
-        val = JS_AtomToString(ctx, JS_ATOM_empty_string);
-    } else {
-        if (JS_IsUndefined(new_target) && JS_IsSymbol(argv[0])) {
-            JSAtomStruct *p = JS_VALUE_GET_PTR(argv[0]);
-            val = JS_ConcatString3(ctx, "Symbol(", JS_AtomToString(ctx, js_get_atom_index(ctx->rt, p)), ")");
-        } else {
-            val = JS_ToString(ctx, argv[0]);
-        }
-        if (JS_IsException(val))
-            return val;
-    }
-    if (!JS_IsUndefined(new_target)) {
-        JSString *p1 = JS_VALUE_GET_STRING(val);
-
-        obj = js_create_from_ctor(ctx, new_target, JS_CLASS_STRING);
-        if (!JS_IsException(obj)) {
-            JS_SetObjectData(ctx, obj, val);
-            JS_DefinePropertyValue(ctx, obj, JS_ATOM_length, JS_NewInt32(ctx, p1->len), 0);
-        }
-        return obj;
-    } else {
-        return val;
-    }
-}
-
-static JSValue js_thisStringValue(JSContext *ctx, JSValueConst this_val)
-{
-    if (JS_VALUE_GET_TAG(this_val) == JS_TAG_STRING)
-        return JS_DupValue(ctx, this_val);
-
-    if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(this_val);
-        if (p->class_id == JS_CLASS_STRING) {
-            if (JS_VALUE_GET_TAG(p->u.object_data) == JS_TAG_STRING)
-                return JS_DupValue(ctx, p->u.object_data);
-        }
-    }
-    return JS_ThrowTypeError(ctx, "not a string");
-}
-
-static JSValue js_string_fromCharCode(JSContext *ctx, JSValueConst this_val,
-                                      int argc, JSValueConst *argv)
-{
-    int i;
-    StringBuffer b_s, *b = &b_s;
-
-    string_buffer_init(ctx, b, argc);
-
-    for(i = 0; i < argc; i++) {
-        int32_t c;
-        if (JS_ToInt32(ctx, &c, argv[i]) || string_buffer_putc16(b, c & 0xffff)) {
-            string_buffer_free(b);
-            return JS_EXCEPTION;
-        }
-    }
-    return string_buffer_end(b);
-}
-
-static JSValue js_string_fromCodePoint(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    double d;
-    int i, c;
-    StringBuffer b_s, *b = &b_s;
-
-    /* XXX: could pre-compute string length if all arguments are JS_TAG_INT */
-
-    if (string_buffer_init(ctx, b, argc))
-        goto fail;
-    for(i = 0; i < argc; i++) {
-        if (JS_VALUE_GET_TAG(argv[i]) == JS_TAG_INT) {
-            c = JS_VALUE_GET_INT(argv[i]);
-            if (c < 0 || c > 0x10ffff)
-                goto range_error;
-        } else {
-            if (JS_ToFloat64(ctx, &d, argv[i]))
-                goto fail;
-            if (d < 0 || d > 0x10ffff || (c = (int)d) != d)
-                goto range_error;
-        }
-        if (string_buffer_putc(b, c))
-            goto fail;
-    }
-    return string_buffer_end(b);
-
- range_error:
-    JS_ThrowRangeError(ctx, "invalid code point");
- fail:
-    string_buffer_free(b);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_string_raw(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    // raw(temp,...a)
-    JSValue cooked, val, raw;
-    StringBuffer b_s, *b = &b_s;
-    int64_t i, n;
-
-    string_buffer_init(ctx, b, 0);
-    raw = JS_UNDEFINED;
-    cooked = JS_ToObject(ctx, argv[0]);
-    if (JS_IsException(cooked))
-        goto exception;
-    raw = JS_ToObjectFree(ctx, JS_GetProperty(ctx, cooked, JS_ATOM_raw));
-    if (JS_IsException(raw))
-        goto exception;
-    if (js_get_length64(ctx, &n, raw) < 0)
-        goto exception;
-        
-    for (i = 0; i < n; i++) {
-        val = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, raw, i));
-        if (JS_IsException(val))
-            goto exception;
-        string_buffer_concat_value_free(b, val);
-        if (i < n - 1 && i + 1 < argc) {
-            if (string_buffer_concat_value(b, argv[i + 1]))
-                goto exception;
-        }
-    }
-    JS_FreeValue(ctx, cooked);
-    JS_FreeValue(ctx, raw);
-    return string_buffer_end(b);
-
-exception:
-    JS_FreeValue(ctx, cooked);
-    JS_FreeValue(ctx, raw);
-    string_buffer_free(b);
-    return JS_EXCEPTION;
-}
-
-/* only used in test262 */
-JSValue js_string_codePointRange(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    uint32_t start, end, i, n;
-    StringBuffer b_s, *b = &b_s;
-
-    if (JS_ToUint32(ctx, &start, argv[0]) ||
-        JS_ToUint32(ctx, &end, argv[1]))
-        return JS_EXCEPTION;
-    end = min_uint32(end, 0x10ffff + 1);
-
-    if (start > end) {
-        start = end;
-    }
-    n = end - start;
-    if (end > 0x10000) {
-        n += end - max_uint32(start, 0x10000);
-    }
-    if (string_buffer_init2(ctx, b, n, end >= 0x100))
-        return JS_EXCEPTION;
-    for(i = start; i < end; i++) {
-        string_buffer_putc(b, i);
-    }
-    return string_buffer_end(b);
-}
-
-#if 0
-static JSValue js_string___isSpace(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    int c;
-    if (JS_ToInt32(ctx, &c, argv[0]))
-        return JS_EXCEPTION;
-    return JS_NewBool(ctx, lre_is_space(c));
-}
-#endif
-
-static JSValue js_string_charCodeAt(JSContext *ctx, JSValueConst this_val,
-                                     int argc, JSValueConst *argv)
-{
-    JSValue val, ret;
-    JSString *p;
-    int idx, c;
-
-    val = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    p = JS_VALUE_GET_STRING(val);
-    if (JS_ToInt32Sat(ctx, &idx, argv[0])) {
-        JS_FreeValue(ctx, val);
-        return JS_EXCEPTION;
-    }
-    if (idx < 0 || idx >= p->len) {
-        ret = JS_NAN;
-    } else {
-        if (p->is_wide_char)
-            c = p->u.str16[idx];
-        else
-            c = p->u.str8[idx];
-        ret = JS_NewInt32(ctx, c);
-    }
-    JS_FreeValue(ctx, val);
-    return ret;
-}
-
-static JSValue js_string_charAt(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSValue val, ret;
-    JSString *p;
-    int idx, c;
-
-    val = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    p = JS_VALUE_GET_STRING(val);
-    if (JS_ToInt32Sat(ctx, &idx, argv[0])) {
-        JS_FreeValue(ctx, val);
-        return JS_EXCEPTION;
-    }
-    if (idx < 0 || idx >= p->len) {
-        ret = js_new_string8(ctx, NULL, 0);
-    } else {
-        if (p->is_wide_char)
-            c = p->u.str16[idx];
-        else
-            c = p->u.str8[idx];
-        ret = js_new_string_char(ctx, c);
-    }
-    JS_FreeValue(ctx, val);
-    return ret;
-}
-
-static JSValue js_string_codePointAt(JSContext *ctx, JSValueConst this_val,
-                                     int argc, JSValueConst *argv)
-{
-    JSValue val, ret;
-    JSString *p;
-    int idx, c;
-
-    val = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    p = JS_VALUE_GET_STRING(val);
-    if (JS_ToInt32Sat(ctx, &idx, argv[0])) {
-        JS_FreeValue(ctx, val);
-        return JS_EXCEPTION;
-    }
-    if (idx < 0 || idx >= p->len) {
-        ret = JS_UNDEFINED;
-    } else {
-        c = string_getc(p, &idx);
-        ret = JS_NewInt32(ctx, c);
-    }
-    JS_FreeValue(ctx, val);
-    return ret;
-}
-
-static JSValue js_string_concat(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSValue r;
-    int i;
-
-    /* XXX: Use more efficient method */
-    /* XXX: This method is OK if r has a single refcount */
-    /* XXX: should use string_buffer? */
-    r = JS_ToStringCheckObject(ctx, this_val);
-    for (i = 0; i < argc; i++) {
-        if (JS_IsException(r))
-            break;
-        r = JS_ConcatString(ctx, r, JS_DupValue(ctx, argv[i]));
-    }
-    return r;
-}
-
-static int string_cmp(JSString *p1, JSString *p2, int x1, int x2, int len)
-{
-    int i, c1, c2;
-    for (i = 0; i < len; i++) {
-        if ((c1 = string_get(p1, x1 + i)) != (c2 = string_get(p2, x2 + i)))
-            return c1 - c2;
-    }
-    return 0;
-}
-
-static int string_indexof_char(JSString *p, int c, int from)
-{
-    /* assuming 0 <= from <= p->len */
-    int i, len = p->len;
-    if (p->is_wide_char) {
-        for (i = from; i < len; i++) {
-            if (p->u.str16[i] == c)
-                return i;
-        }
-    } else {
-        if ((c & ~0xff) == 0) {
-            for (i = from; i < len; i++) {
-                if (p->u.str8[i] == (uint8_t)c)
-                    return i;
-            }
-        }
-    }
-    return -1;
-}
-
-static int string_indexof(JSString *p1, JSString *p2, int from)
-{
-    /* assuming 0 <= from <= p1->len */
-    int c, i, j, len1 = p1->len, len2 = p2->len;
-    if (len2 == 0)
-        return from;
-    for (i = from, c = string_get(p2, 0); i + len2 <= len1; i = j + 1) {
-        j = string_indexof_char(p1, c, i);
-        if (j < 0 || j + len2 > len1)
-            break;
-        if (!string_cmp(p1, p2, j + 1, 1, len2 - 1))
-            return j;
-    }
-    return -1;
-}
-
-static int string_advance_index(JSString *p, int index, BOOL unicode)
-{
-    if (!unicode || (unsigned)index >= p->len || !p->is_wide_char) {
-        index++;
-    } else {
-        string_getc(p, &index);
-    }
-    return index;
-}
-
-static JSValue js_string_indexOf(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv, int lastIndexOf)
-{
-    JSValue str, v;
-    int i, len, v_len, pos, start, stop, ret, inc;
-    JSString *p;
-    JSString *p1;
-
-    str = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(str))
-        return str;
-    v = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(v))
-        goto fail;
-    p = JS_VALUE_GET_STRING(str);
-    p1 = JS_VALUE_GET_STRING(v);
-    len = p->len;
-    v_len = p1->len;
-    if (lastIndexOf) {
-        pos = len - v_len;
-        if (argc > 1) {
-            double d;
-            if (JS_ToFloat64(ctx, &d, argv[1]))
-                goto fail;
-            if (!isnan(d)) {
-                if (d <= 0)
-                    pos = 0;
-                else if (d < pos)
-                    pos = d;
-            }
-        }
-        start = pos;
-        stop = 0;
-        inc = -1;
-    } else {
-        pos = 0;
-        if (argc > 1) {
-            if (JS_ToInt32Clamp(ctx, &pos, argv[1], 0, len, 0))
-                goto fail;
-        }
-        start = pos;
-        stop = len - v_len;
-        inc = 1;
-    }
-    ret = -1;
-    if (len >= v_len && inc * (stop - start) >= 0) {
-        for (i = start;; i += inc) {
-            if (!string_cmp(p, p1, i, 0, v_len)) {
-                ret = i;
-                break;
-            }
-            if (i == stop)
-                break;
-        }
-    }
-    JS_FreeValue(ctx, str);
-    JS_FreeValue(ctx, v);
-    return JS_NewInt32(ctx, ret);
-
-fail:
-    JS_FreeValue(ctx, str);
-    JS_FreeValue(ctx, v);
-    return JS_EXCEPTION;
-}
-
-/* return < 0 if exception or TRUE/FALSE */
-static int js_is_regexp(JSContext *ctx, JSValueConst obj);
-
-static JSValue js_string_includes(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv, int magic)
-{
-    JSValue str, v = JS_UNDEFINED;
-    int i, len, v_len, pos, start, stop, ret;
-    JSString *p;
-    JSString *p1;
-
-    str = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(str))
-        return str;
-    ret = js_is_regexp(ctx, argv[0]);
-    if (ret) {
-        if (ret > 0)
-            JS_ThrowTypeError(ctx, "regex not supported");
-        goto fail;
-    }
-    v = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(v))
-        goto fail;
-    p = JS_VALUE_GET_STRING(str);
-    p1 = JS_VALUE_GET_STRING(v);
-    len = p->len;
-    v_len = p1->len;
-    pos = (magic & 2) ? len : 0;
-    if (argc > 1 && !JS_IsUndefined(argv[1])) {
-        if (JS_ToInt32Clamp(ctx, &pos, argv[1], 0, len, 0))
-            goto fail;
-    }
-    len -= v_len;
-    start = pos;
-    stop = len;
-    if (magic & 1) {
-        stop = pos;
-    }
-    if (magic & 2) {
-        pos -= v_len;
-        start = stop = pos;
-    }
-    ret = 0;
-    if (start >= 0 && start <= stop) {
-        for (i = start;; i++) {
-            if (!string_cmp(p, p1, i, 0, v_len)) {
-                ret = 1;
-                break;
-            }
-            if (i == stop)
-                break;
-        }
-    }
-    JS_FreeValue(ctx, str);
-    JS_FreeValue(ctx, v);
-    return JS_NewBool(ctx, ret);
-
-fail:
-    JS_FreeValue(ctx, str);
-    JS_FreeValue(ctx, v);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_string_match(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv, int atom)
-{
-    // match(rx), search(rx), matchAll(rx)
-    // atom is JS_ATOM_Symbol_match, JS_ATOM_Symbol_search, or JS_ATOM_Symbol_matchAll
-    JSValueConst O = this_val, regexp = argv[0], args[2];
-    JSValue matcher, S, rx, result, str;
-    int args_len;
-
-    if (JS_IsUndefined(O) || JS_IsNull(O))
-        return JS_ThrowTypeError(ctx, "cannot convert to object");
-
-    if (!JS_IsUndefined(regexp) && !JS_IsNull(regexp)) {
-        matcher = JS_GetProperty(ctx, regexp, atom);
-        if (JS_IsException(matcher))
-            return JS_EXCEPTION;
-        if (!JS_IsUndefined(matcher) && !JS_IsNull(matcher)) {
-            return JS_CallFree(ctx, matcher, regexp, 1, &O);
-        }
-    }
-    S = JS_ToString(ctx, O);
-    if (JS_IsException(S))
-        return JS_EXCEPTION;
-    args_len = 1;
-    args[0] = regexp;
-    str = JS_UNDEFINED;
-    if (atom == JS_ATOM_Symbol_matchAll) {
-        str = JS_NewString(ctx, "g");
-        if (JS_IsException(str))
-            goto fail;
-        args[args_len++] = (JSValueConst)str;
-    }
-    rx = JS_CallConstructor(ctx, ctx->regexp_ctor, args_len, args);
-    JS_FreeValue(ctx, str);
-    if (JS_IsException(rx)) {
-    fail:
-        JS_FreeValue(ctx, S);
-        return JS_EXCEPTION;
-    }
-    result = JS_InvokeFree(ctx, rx, atom, 1, (JSValueConst *)&S);
-    JS_FreeValue(ctx, S);
-    return result;
-}
-
-static JSValue js_string___GetSubstitution(JSContext *ctx, JSValueConst this_val,
-                                           int argc, JSValueConst *argv)
-{
-    // GetSubstitution(matched, str, position, captures, namedCaptures, rep)
-    JSValueConst matched, str, captures, namedCaptures, rep;
-    JSValue capture, name, s;
-    uint32_t position, len, matched_len, captures_len;
-    int i, j, j0, k, k1;
-    int c, c1;
-    StringBuffer b_s, *b = &b_s;
-    JSString *sp, *rp;
-
-    matched = argv[0];
-    str = argv[1];
-    captures = argv[3];
-    namedCaptures = argv[4];
-    rep = argv[5];
-
-    if (!JS_IsString(rep) || !JS_IsString(str))
-        return JS_ThrowTypeError(ctx, "not a string");
-
-    sp = JS_VALUE_GET_STRING(str);
-    rp = JS_VALUE_GET_STRING(rep);
-
-    string_buffer_init(ctx, b, 0);
-
-    captures_len = 0;
-    if (!JS_IsUndefined(captures)) {
-        if (js_get_length32(ctx, &captures_len, captures))
-            goto exception;
-    }
-    if (js_get_length32(ctx, &matched_len, matched))
-        goto exception;
-    if (JS_ToUint32(ctx, &position, argv[2]) < 0)
-        goto exception;
-
-    len = rp->len;
-    i = 0;
-    for(;;) {
-        j = string_indexof_char(rp, '$', i);
-        if (j < 0 || j + 1 >= len)
-            break;
-        string_buffer_concat(b, rp, i, j);
-        j0 = j++;
-        c = string_get(rp, j++);
-        if (c == '$') {
-            string_buffer_putc8(b, '$');
-        } else if (c == '&') {
-            if (string_buffer_concat_value(b, matched))
-                goto exception;
-        } else if (c == '`') {
-            string_buffer_concat(b, sp, 0, position);
-        } else if (c == '\'') {
-            string_buffer_concat(b, sp, position + matched_len, sp->len);
-        } else if (c >= '0' && c <= '9') {
-            k = c - '0';
-            c1 = string_get(rp, j);
-            if (c1 >= '0' && c1 <= '9') {
-                /* This behavior is specified in ES6 and refined in ECMA 2019 */
-                /* ECMA 2019 does not have the extra test, but
-                   Test262 S15.5.4.11_A3_T1..3 require this behavior */
-                k1 = k * 10 + c1 - '0';
-                if (k1 >= 1 && k1 < captures_len) {
-                    k = k1;
-                    j++;
-                }
-            }
-            if (k >= 1 && k < captures_len) {
-                s = JS_GetPropertyInt64(ctx, captures, k);
-                if (JS_IsException(s))
-                    goto exception;
-                if (!JS_IsUndefined(s)) {
-                    if (string_buffer_concat_value_free(b, s))
-                        goto exception;
-                }
-            } else {
-                goto norep;
-            }
-        } else if (c == '<' && !JS_IsUndefined(namedCaptures)) {
-            k = string_indexof_char(rp, '>', j);
-            if (k < 0)
-                goto norep;
-            name = js_sub_string(ctx, rp, j, k);
-            if (JS_IsException(name))
-                goto exception;
-            capture = JS_GetPropertyValue(ctx, namedCaptures, name);
-            if (JS_IsException(capture))
-                goto exception;
-            if (!JS_IsUndefined(capture)) {
-                if (string_buffer_concat_value_free(b, capture))
-                    goto exception;
-            }
-            j = k + 1;
-        } else {
-        norep:
-            string_buffer_concat(b, rp, j0, j);
-        }
-        i = j;
-    }
-    string_buffer_concat(b, rp, i, rp->len);
-    return string_buffer_end(b);
-exception:
-    string_buffer_free(b);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_string_replace(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    // replace(rx, rep)
-    JSValueConst O = this_val, searchValue = argv[0], replaceValue = argv[1];
-    JSValueConst args[6];
-    JSValue str, search_str, replaceValue_str, repl_str;
-    JSString *sp, *searchp;
-    StringBuffer b_s, *b = &b_s;
-    int pos, functionalReplace;
-
-    if (JS_IsUndefined(O) || JS_IsNull(O))
-        return JS_ThrowTypeError(ctx, "cannot convert to object");
-
-    search_str = JS_UNDEFINED;
-    replaceValue_str = JS_UNDEFINED;
-    repl_str = JS_UNDEFINED;
-
-    if (!JS_IsUndefined(searchValue) && !JS_IsNull(searchValue)) {
-        JSValue replacer;
-        replacer = JS_GetProperty(ctx, searchValue, JS_ATOM_Symbol_replace);
-        if (JS_IsException(replacer))
-            return JS_EXCEPTION;
-        if (!JS_IsUndefined(replacer)) {
-            args[0] = O;
-            args[1] = replaceValue;
-            return JS_CallFree(ctx, replacer, searchValue, 2, args);
-        }
-    }
-    string_buffer_init(ctx, b, 0);
-
-    str = JS_ToString(ctx, O);
-    if (JS_IsException(str))
-        goto exception;
-    search_str = JS_ToString(ctx, searchValue);
-    if (JS_IsException(search_str))
-        goto exception;
-    functionalReplace = JS_IsFunction(ctx, replaceValue);
-    if (!functionalReplace) {
-        replaceValue_str = JS_ToString(ctx, replaceValue);
-        if (JS_IsException(replaceValue_str))
-            goto exception;
-    }
-
-    sp = JS_VALUE_GET_STRING(str);
-    searchp = JS_VALUE_GET_STRING(search_str);
-
-    pos = string_indexof(sp, searchp, 0);
-    if (pos < 0) {
-        string_buffer_free(b);
-        JS_FreeValue(ctx, search_str);
-        JS_FreeValue(ctx, replaceValue_str);
-        return str;
-    }
-    if (functionalReplace) {
-        args[0] = search_str;
-        args[1] = JS_NewInt32(ctx, pos);
-        args[2] = str;
-        repl_str = JS_ToStringFree(ctx, JS_Call(ctx, replaceValue, JS_UNDEFINED, 3, args));
-    } else {
-        args[0] = search_str;
-        args[1] = str;
-        args[2] = JS_NewInt32(ctx, pos);
-        args[3] = JS_UNDEFINED;
-        args[4] = JS_UNDEFINED;
-        args[5] = replaceValue_str;
-        repl_str = js_string___GetSubstitution(ctx, JS_UNDEFINED, 6, args);
-    }
-    if (JS_IsException(repl_str))
-        goto exception;
-
-    string_buffer_concat(b, sp, 0, pos);
-    string_buffer_concat_value_free(b, repl_str);
-    string_buffer_concat(b, sp, pos + searchp->len, sp->len);
-    JS_FreeValue(ctx, search_str);
-    JS_FreeValue(ctx, replaceValue_str);
-    JS_FreeValue(ctx, str);
-    return string_buffer_end(b);
-
-exception:
-    string_buffer_free(b);
-    JS_FreeValue(ctx, search_str);
-    JS_FreeValue(ctx, replaceValue_str);
-    JS_FreeValue(ctx, str);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_string_split(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv)
-{
-    // split(sep, limit)
-    JSValueConst O = this_val, separator = argv[0], limit = argv[1];
-    JSValueConst args[2];
-    JSValue S, A, R, T;
-    uint32_t lim, lengthA;
-    int64_t p, q, s, r, e;
-    JSString *sp, *rp;
-
-    if (JS_IsUndefined(O) || JS_IsNull(O))
-        return JS_ThrowTypeError(ctx, "cannot convert to object");
-
-    S = JS_UNDEFINED;
-    A = JS_UNDEFINED;
-    R = JS_UNDEFINED;
-
-    if (!JS_IsUndefined(separator) && !JS_IsNull(separator)) {
-        JSValue splitter;
-        splitter = JS_GetProperty(ctx, separator, JS_ATOM_Symbol_split);
-        if (JS_IsException(splitter))
-            return JS_EXCEPTION;
-        if (!JS_IsUndefined(splitter) && !JS_IsNull(splitter)) {
-            args[0] = O;
-            args[1] = limit;
-            return JS_CallFree(ctx, splitter, separator, 2, args);
-        }
-    }
-    S = JS_ToString(ctx, O);
-    if (JS_IsException(S))
-        goto exception;
-    A = JS_NewArray(ctx);
-    if (JS_IsException(A))
-        goto exception;
-    lengthA = 0;
-    if (JS_IsUndefined(limit)) {
-        lim = 0xffffffff;
-    } else {
-        if (JS_ToUint32(ctx, &lim, limit) < 0)
-            goto exception;
-    }
-    sp = JS_VALUE_GET_STRING(S);
-    s = sp->len;
-    R = JS_ToString(ctx, separator);
-    if (JS_IsException(R))
-        goto exception;
-    rp = JS_VALUE_GET_STRING(R);
-    r = rp->len;
-    p = 0;
-    if (lim == 0)
-        goto done;
-    if (JS_IsUndefined(separator))
-        goto add_tail;
-    if (s == 0) {
-        if (r != 0)
-            goto add_tail;
-        goto done;
-    }
-    q = p;
-    for (q = p; (q += !r) <= s - r - !r; q = p = e + r) {
-        e = string_indexof(sp, rp, q);
-        if (e < 0)
-            break;
-        T = js_sub_string(ctx, sp, p, e);
-        if (JS_IsException(T))
-            goto exception;
-        if (JS_CreateDataPropertyUint32(ctx, A, lengthA++, T, 0) < 0)
-            goto exception;
-        if (lengthA == lim)
-            goto done;
-    }
-add_tail:
-    T = js_sub_string(ctx, sp, p, s);
-    if (JS_IsException(T))
-        goto exception;
-    if (JS_CreateDataPropertyUint32(ctx, A, lengthA++, T,0 ) < 0)
-        goto exception;
-done:
-    JS_FreeValue(ctx, S);
-    JS_FreeValue(ctx, R);
-    return A;
-
-exception:
-    JS_FreeValue(ctx, A);
-    JS_FreeValue(ctx, S);
-    JS_FreeValue(ctx, R);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_string_substring(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    JSValue str, ret;
-    int a, b, start, end;
-    JSString *p;
-
-    str = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(str))
-        return str;
-    p = JS_VALUE_GET_STRING(str);
-    if (JS_ToInt32Clamp(ctx, &a, argv[0], 0, p->len, 0)) {
-        JS_FreeValue(ctx, str);
-        return JS_EXCEPTION;
-    }
-    b = p->len;
-    if (!JS_IsUndefined(argv[1])) {
-        if (JS_ToInt32Clamp(ctx, &b, argv[1], 0, p->len, 0)) {
-            JS_FreeValue(ctx, str);
-            return JS_EXCEPTION;
-        }
-    }
-    if (a < b) {
-        start = a;
-        end = b;
-    } else {
-        start = b;
-        end = a;
-    }
-    ret = js_sub_string(ctx, p, start, end);
-    JS_FreeValue(ctx, str);
-    return ret;
-}
-
-static JSValue js_string_substr(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSValue str, ret;
-    int a, len, n;
-    JSString *p;
-
-    str = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(str))
-        return str;
-    p = JS_VALUE_GET_STRING(str);
-    len = p->len;
-    if (JS_ToInt32Clamp(ctx, &a, argv[0], 0, len, len)) {
-        JS_FreeValue(ctx, str);
-        return JS_EXCEPTION;
-    }
-    n = len - a;
-    if (!JS_IsUndefined(argv[1])) {
-        if (JS_ToInt32Clamp(ctx, &n, argv[1], 0, len - a, 0)) {
-            JS_FreeValue(ctx, str);
-            return JS_EXCEPTION;
-        }
-    }
-    ret = js_sub_string(ctx, p, a, a + n);
-    JS_FreeValue(ctx, str);
-    return ret;
-}
-
-static JSValue js_string_slice(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv)
-{
-    JSValue str, ret;
-    int len, start, end;
-    JSString *p;
-
-    str = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(str))
-        return str;
-    p = JS_VALUE_GET_STRING(str);
-    len = p->len;
-    if (JS_ToInt32Clamp(ctx, &start, argv[0], 0, len, len)) {
-        JS_FreeValue(ctx, str);
-        return JS_EXCEPTION;
-    }
-    end = len;
-    if (!JS_IsUndefined(argv[1])) {
-        if (JS_ToInt32Clamp(ctx, &end, argv[1], 0, len, len)) {
-            JS_FreeValue(ctx, str);
-            return JS_EXCEPTION;
-        }
-    }
-    ret = js_sub_string(ctx, p, start, max_int(end, start));
-    JS_FreeValue(ctx, str);
-    return ret;
-}
-
-static JSValue js_string_pad(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv, int padEnd)
-{
-    JSValue str, v = JS_UNDEFINED;
-    StringBuffer b_s, *b = &b_s;
-    JSString *p, *p1 = NULL;
-    int n, len, c = ' ';
-
-    str = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(str))
-        goto fail1;
-    if (JS_ToInt32Sat(ctx, &n, argv[0]))
-        goto fail2;
-    p = JS_VALUE_GET_STRING(str);
-    len = p->len;
-    if (len >= n)
-        return str;
-    if (n > JS_STRING_LEN_MAX) {
-        JS_ThrowInternalError(ctx, "string too long");
-        goto fail2;
-    }
-    if (argc > 1 && !JS_IsUndefined(argv[1])) {
-        v = JS_ToString(ctx, argv[1]);
-        if (JS_IsException(v))
-            goto fail2;
-        p1 = JS_VALUE_GET_STRING(v);
-        if (p1->len == 0) {
-            JS_FreeValue(ctx, v);
-            return str;
-        }
-        if (p1->len == 1) {
-            c = string_get(p1, 0);
-            p1 = NULL;
-        }
-    }
-    if (string_buffer_init(ctx, b, n))
-        goto fail3;
-    n -= len;
-    if (padEnd) {
-        if (string_buffer_concat(b, p, 0, len))
-            goto fail;
-    }
-    if (p1) {
-        while (n > 0) {
-            int chunk = min_int(n, p1->len);
-            if (string_buffer_concat(b, p1, 0, chunk))
-                goto fail;
-            n -= chunk;
-        }
-    } else {
-        if (string_buffer_fill(b, c, n))
-            goto fail;
-    }
-    if (!padEnd) {
-        if (string_buffer_concat(b, p, 0, len))
-            goto fail;
-    }
-    JS_FreeValue(ctx, v);
-    JS_FreeValue(ctx, str);
-    return string_buffer_end(b);
-
-fail:
-    string_buffer_free(b);
-fail3:
-    JS_FreeValue(ctx, v);
-fail2:
-    JS_FreeValue(ctx, str);
-fail1:
-    return JS_EXCEPTION;
-}
-
-static JSValue js_string_repeat(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSValue str;
-    StringBuffer b_s, *b = &b_s;
-    JSString *p;
-    int64_t val;
-    int n, len;
-
-    str = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(str))
-        goto fail;
-    if (JS_ToInt64Sat(ctx, &val, argv[0]))
-        goto fail;
-    if (val < 0 || val > 2147483647) {
-        JS_ThrowRangeError(ctx, "invalid repeat count");
-        goto fail;
-    }
-    n = val;
-    p = JS_VALUE_GET_STRING(str);
-    len = p->len;
-    if (len == 0 || n == 1)
-        return str;
-    if (val * len > JS_STRING_LEN_MAX) {
-        JS_ThrowInternalError(ctx, "string too long");
-        goto fail;
-    }
-    if (string_buffer_init2(ctx, b, n * len, p->is_wide_char))
-        goto fail;
-    if (len == 1) {
-        string_buffer_fill(b, string_get(p, 0), n);
-    } else {
-        while (n-- > 0) {
-            string_buffer_concat(b, p, 0, len);
-        }
-    }
-    JS_FreeValue(ctx, str);
-    return string_buffer_end(b);
-
-fail:
-    JS_FreeValue(ctx, str);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_string_trim(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv, int magic)
-{
-    JSValue str, ret;
-    int a, b, len;
-    JSString *p;
-
-    str = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(str))
-        return str;
-    p = JS_VALUE_GET_STRING(str);
-    a = 0;
-    b = len = p->len;
-    if (magic & 1) {
-        while (a < len && lre_is_space(string_get(p, a)))
-            a++;
-    }
-    if (magic & 2) {
-        while (b > a && lre_is_space(string_get(p, b - 1)))
-            b--;
-    }
-    ret = js_sub_string(ctx, p, a, b);
-    JS_FreeValue(ctx, str);
-    return ret;
-}
-
-static JSValue js_string___quote(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    return JS_ToQuotedString(ctx, this_val);
-}
-
-/* return 0 if before the first char */
-static int string_prevc(JSString *p, int *pidx)
-{
-    int idx, c, c1;
-
-    idx = *pidx;
-    if (idx <= 0)
-        return 0;
-    idx--;
-    if (p->is_wide_char) {
-        c = p->u.str16[idx];
-        if (c >= 0xdc00 && c < 0xe000 && idx > 0) {
-            c1 = p->u.str16[idx - 1];
-            if (c1 >= 0xd800 && c1 <= 0xdc00) {
-                c = (((c1 & 0x3ff) << 10) | (c & 0x3ff)) + 0x10000;
-                idx--;
-            }
-        }
-    } else {
-        c = p->u.str8[idx];
-    }
-    *pidx = idx;
-    return c;
-}
-
-static BOOL test_final_sigma(JSString *p, int sigma_pos)
-{
-    int k, c1;
-
-    /* before C: skip case ignorable chars and check there is
-       a cased letter */
-    k = sigma_pos;
-    for(;;) {
-        c1 = string_prevc(p, &k);
-        if (!lre_is_case_ignorable(c1))
-            break;
-    }
-    if (!lre_is_cased(c1))
-        return FALSE;
-
-    /* after C: skip case ignorable chars and check there is
-       no cased letter */
-    k = sigma_pos + 1;
-    for(;;) {
-        if (k >= p->len)
-            return TRUE;
-        c1 = string_getc(p, &k);
-        if (!lre_is_case_ignorable(c1))
-            break;
-    }
-    return !lre_is_cased(c1);
-}
-
-static JSValue js_string_localeCompare(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    JSValue a, b;
-    int cmp;
-
-    a = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(a))
-        return JS_EXCEPTION;
-    b = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(b)) {
-        JS_FreeValue(ctx, a);
-        return JS_EXCEPTION;
-    }
-    cmp = js_string_compare(ctx, JS_VALUE_GET_STRING(a), JS_VALUE_GET_STRING(b));
-    JS_FreeValue(ctx, a);
-    JS_FreeValue(ctx, b);
-    return JS_NewInt32(ctx, cmp);
-}
-
-static JSValue js_string_toLowerCase(JSContext *ctx, JSValueConst this_val,
-                                     int argc, JSValueConst *argv, int to_lower)
-{
-    JSValue val;
-    StringBuffer b_s, *b = &b_s;
-    JSString *p;
-    int i, c, j, l;
-    uint32_t res[LRE_CC_RES_LEN_MAX];
-
-    val = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    p = JS_VALUE_GET_STRING(val);
-    if (p->len == 0)
-        return val;
-    if (string_buffer_init(ctx, b, p->len))
-        goto fail;
-    for(i = 0; i < p->len;) {
-        c = string_getc(p, &i);
-        if (c == 0x3a3 && to_lower && test_final_sigma(p, i - 1)) {
-            res[0] = 0x3c2; /* final sigma */
-            l = 1;
-        } else {
-            l = lre_case_conv(res, c, to_lower);
-        }
-        for(j = 0; j < l; j++) {
-            if (string_buffer_putc(b, res[j]))
-                goto fail;
-        }
-    }
-    JS_FreeValue(ctx, val);
-    return string_buffer_end(b);
- fail:
-    JS_FreeValue(ctx, val);
-    string_buffer_free(b);
-    return JS_EXCEPTION;
-}
-
-#ifdef CONFIG_ALL_UNICODE
-
-/* return (-1, NULL) if exception, otherwise (len, buf) */
-static int JS_ToUTF32String(JSContext *ctx, uint32_t **pbuf, JSValueConst val1)
-{
-    JSValue val;
-    JSString *p;
-    uint32_t *buf;
-    int i, j, len;
-
-    val = JS_ToString(ctx, val1);
-    if (JS_IsException(val))
-        return -1;
-    p = JS_VALUE_GET_STRING(val);
-    len = p->len;
-    /* UTF32 buffer length is len minus the number of correct surrogates pairs */
-    buf = js_malloc(ctx, sizeof(buf[0]) * max_int(len, 1));
-    if (!buf) {
-        JS_FreeValue(ctx, val);
-        goto fail;
-    }
-    for(i = j = 0; i < len;)
-        buf[j++] = string_getc(p, &i);
-    JS_FreeValue(ctx, val);
-    *pbuf = buf;
-    return j;
- fail:
-    *pbuf = NULL;
-    return -1;
-}
-
-static JSValue JS_NewUTF32String(JSContext *ctx, const uint32_t *buf, int len)
-{
-    int i;
-    StringBuffer b_s, *b = &b_s;
-    if (string_buffer_init(ctx, b, len))
-        return JS_EXCEPTION;
-    for(i = 0; i < len; i++) {
-        if (string_buffer_putc(b, buf[i]))
-            goto fail;
-    }
-    return string_buffer_end(b);
- fail:
-    string_buffer_free(b);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_string_normalize(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    const char *form, *p;
-    size_t form_len;
-    int is_compat, buf_len, out_len;
-    UnicodeNormalizationEnum n_type;
-    JSValue val;
-    uint32_t *buf, *out_buf;
-
-    val = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    buf_len = JS_ToUTF32String(ctx, &buf, val);
-    JS_FreeValue(ctx, val);
-    if (buf_len < 0)
-        return JS_EXCEPTION;
-
-    if (argc == 0 || JS_IsUndefined(argv[0])) {
-        n_type = UNICODE_NFC;
-    } else {
-        form = JS_ToCStringLen(ctx, &form_len, argv[0]);
-        if (!form)
-            goto fail1;
-        p = form;
-        if (p[0] != 'N' || p[1] != 'F')
-            goto bad_form;
-        p += 2;
-        is_compat = FALSE;
-        if (*p == 'K') {
-            is_compat = TRUE;
-            p++;
-        }
-        if (*p == 'C' || *p == 'D') {
-            n_type = UNICODE_NFC + is_compat * 2 + (*p - 'C');
-            if ((p + 1 - form) != form_len)
-                goto bad_form;
-        } else {
-        bad_form:
-            JS_FreeCString(ctx, form);
-            JS_ThrowRangeError(ctx, "bad normalization form");
-        fail1:
-            js_free(ctx, buf);
-            return JS_EXCEPTION;
-        }
-        JS_FreeCString(ctx, form);
-    }
-
-    out_len = unicode_normalize(&out_buf, buf, buf_len, n_type,
-                                ctx->rt, (DynBufReallocFunc *)js_realloc_rt);
-    js_free(ctx, buf);
-    if (out_len < 0)
-        return JS_EXCEPTION;
-    val = JS_NewUTF32String(ctx, out_buf, out_len);
-    js_free(ctx, out_buf);
-    return val;
-}
-#endif /* CONFIG_ALL_UNICODE */
-
-/* also used for String.prototype.valueOf */
-static JSValue js_string_toString(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    return js_thisStringValue(ctx, this_val);
-}
-
-#if 0
-static JSValue js_string___toStringCheckObject(JSContext *ctx, JSValueConst this_val,
-                                               int argc, JSValueConst *argv)
-{
-    return JS_ToStringCheckObject(ctx, argv[0]);
-}
-
-static JSValue js_string___toString(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    return JS_ToString(ctx, argv[0]);
-}
-
-static JSValue js_string___advanceStringIndex(JSContext *ctx, JSValueConst
-                                              this_val,
-                                              int argc, JSValueConst *argv)
-{
-    JSValue str;
-    int idx;
-    BOOL is_unicode;
-    JSString *p;
-
-    str = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(str))
-        return str;
-    if (JS_ToInt32Sat(ctx, &idx, argv[1])) {
-        JS_FreeValue(ctx, str);
-        return JS_EXCEPTION;
-    }
-    is_unicode = JS_ToBool(ctx, argv[2]);
-    p = JS_VALUE_GET_STRING(str);
-    if (!is_unicode || (unsigned)idx >= p->len || !p->is_wide_char) {
-        idx++;
-    } else {
-        string_getc(p, &idx);
-    }
-    JS_FreeValue(ctx, str);
-    return JS_NewInt32(ctx, idx);
-}
-#endif
-
-/* String Iterator */
-
-static JSValue js_string_iterator_next(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv,
-                                       BOOL *pdone, int magic)
-{
-    JSArrayIteratorData *it;
-    uint32_t idx, c, start;
-    JSString *p;
-
-    it = JS_GetOpaque2(ctx, this_val, JS_CLASS_STRING_ITERATOR);
-    if (!it) {
-        *pdone = FALSE;
-        return JS_EXCEPTION;
-    }
-    if (JS_IsUndefined(it->obj))
-        goto done;
-    p = JS_VALUE_GET_STRING(it->obj);
-    idx = it->idx;
-    if (idx >= p->len) {
-        JS_FreeValue(ctx, it->obj);
-        it->obj = JS_UNDEFINED;
-    done:
-        *pdone = TRUE;
-        return JS_UNDEFINED;
-    }
-
-    start = idx;
-    c = string_getc(p, (int *)&idx);
-    it->idx = idx;
-    *pdone = FALSE;
-    if (c <= 0xffff) {
-        return js_new_string_char(ctx, c);
-    } else {
-        return js_new_string16(ctx, p->u.str16 + start, 2);
-    }
-}
-
-/* ES6 Annex B 2.3.2 etc. */
-enum {
-    magic_string_anchor,
-    magic_string_big,
-    magic_string_blink,
-    magic_string_bold,
-    magic_string_fixed,
-    magic_string_fontcolor,
-    magic_string_fontsize,
-    magic_string_italics,
-    magic_string_link,
-    magic_string_small,
-    magic_string_strike,
-    magic_string_sub,
-    magic_string_sup,
-};
-
-static JSValue js_string_CreateHTML(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv, int magic)
-{
-    JSValue str;
-    const JSString *p;
-    StringBuffer b_s, *b = &b_s;
-    static struct { const char *tag, *attr; } const defs[] = {
-        { "a", "name" }, { "big", NULL }, { "blink", NULL }, { "b", NULL },
-        { "tt", NULL }, { "font", "color" }, { "font", "size" }, { "i", NULL },
-        { "a", "href" }, { "small", NULL }, { "strike", NULL }, 
-        { "sub", NULL }, { "sup", NULL },
-    };
-
-    str = JS_ToStringCheckObject(ctx, this_val);
-    if (JS_IsException(str))
-        return JS_EXCEPTION;
-    string_buffer_init(ctx, b, 7);
-    string_buffer_putc8(b, '<');
-    string_buffer_puts8(b, defs[magic].tag);
-    if (defs[magic].attr) {
-        // r += " " + attr + "=\"" + value + "\"";
-        JSValue value;
-        int i;
-
-        string_buffer_putc8(b, ' ');
-        string_buffer_puts8(b, defs[magic].attr);
-        string_buffer_puts8(b, "=\"");
-        value = JS_ToStringCheckObject(ctx, argv[0]);
-        if (JS_IsException(value)) {
-            JS_FreeValue(ctx, str);
-            string_buffer_free(b);
-            return JS_EXCEPTION;
-        }
-        p = JS_VALUE_GET_STRING(value);
-        for (i = 0; i < p->len; i++) {
-            int c = string_get(p, i);
-            if (c == '"') {
-                string_buffer_puts8(b, "&quot;");
-            } else {
-                string_buffer_putc16(b, c);
-            }
-        }
-        JS_FreeValue(ctx, value);
-        string_buffer_putc8(b, '\"');
-    }
-    // return r + ">" + str + "</" + tag + ">";
-    string_buffer_putc8(b, '>');
-    string_buffer_concat_value_free(b, str);
-    string_buffer_puts8(b, "</");
-    string_buffer_puts8(b, defs[magic].tag);
-    string_buffer_putc8(b, '>');
-    return string_buffer_end(b);
-}
-
-static const JSCFunctionListEntry js_string_funcs[] = {
-    JS_CFUNC_DEF("fromCharCode", 1, js_string_fromCharCode ),
-    JS_CFUNC_DEF("fromCodePoint", 1, js_string_fromCodePoint ),
-    JS_CFUNC_DEF("raw", 1, js_string_raw ),
-    //JS_CFUNC_DEF("__toString", 1, js_string___toString ),
-    //JS_CFUNC_DEF("__isSpace", 1, js_string___isSpace ),
-    //JS_CFUNC_DEF("__toStringCheckObject", 1, js_string___toStringCheckObject ),
-    //JS_CFUNC_DEF("__advanceStringIndex", 3, js_string___advanceStringIndex ),
-    //JS_CFUNC_DEF("__GetSubstitution", 6, js_string___GetSubstitution ),
-};
-
-static const JSCFunctionListEntry js_string_proto_funcs[] = {
-    JS_PROP_INT32_DEF("length", 0, JS_PROP_CONFIGURABLE ),
-    JS_CFUNC_DEF("charCodeAt", 1, js_string_charCodeAt ),
-    JS_CFUNC_DEF("charAt", 1, js_string_charAt ),
-    JS_CFUNC_DEF("concat", 1, js_string_concat ),
-    JS_CFUNC_DEF("codePointAt", 1, js_string_codePointAt ),
-    JS_CFUNC_MAGIC_DEF("indexOf", 1, js_string_indexOf, 0 ),
-    JS_CFUNC_MAGIC_DEF("lastIndexOf", 1, js_string_indexOf, 1 ),
-    JS_CFUNC_MAGIC_DEF("includes", 1, js_string_includes, 0 ),
-    JS_CFUNC_MAGIC_DEF("endsWith", 1, js_string_includes, 2 ),
-    JS_CFUNC_MAGIC_DEF("startsWith", 1, js_string_includes, 1 ),
-    JS_CFUNC_MAGIC_DEF("match", 1, js_string_match, JS_ATOM_Symbol_match ),
-    JS_CFUNC_MAGIC_DEF("matchAll", 1, js_string_match, JS_ATOM_Symbol_matchAll ),
-    JS_CFUNC_MAGIC_DEF("search", 1, js_string_match, JS_ATOM_Symbol_search ),
-    JS_CFUNC_DEF("split", 2, js_string_split ),
-    JS_CFUNC_DEF("substring", 2, js_string_substring ),
-    JS_CFUNC_DEF("substr", 2, js_string_substr ),
-    JS_CFUNC_DEF("slice", 2, js_string_slice ),
-    JS_CFUNC_DEF("repeat", 1, js_string_repeat ),
-    JS_CFUNC_DEF("replace", 2, js_string_replace ),
-    JS_CFUNC_MAGIC_DEF("padEnd", 1, js_string_pad, 1 ),
-    JS_CFUNC_MAGIC_DEF("padStart", 1, js_string_pad, 0 ),
-    JS_CFUNC_MAGIC_DEF("trim", 0, js_string_trim, 3 ),
-    JS_CFUNC_MAGIC_DEF("trimEnd", 0, js_string_trim, 2 ),
-    JS_ALIAS_DEF("trimRight", "trimEnd" ),
-    JS_CFUNC_MAGIC_DEF("trimStart", 0, js_string_trim, 1 ),
-    JS_ALIAS_DEF("trimLeft", "trimStart" ),
-    JS_CFUNC_DEF("toString", 0, js_string_toString ),
-    JS_CFUNC_DEF("valueOf", 0, js_string_toString ),
-    JS_CFUNC_DEF("__quote", 1, js_string___quote ),
-    JS_CFUNC_DEF("localeCompare", 1, js_string_localeCompare ),
-    JS_CFUNC_MAGIC_DEF("toLowerCase", 0, js_string_toLowerCase, 1 ),
-    JS_CFUNC_MAGIC_DEF("toUpperCase", 0, js_string_toLowerCase, 0 ),
-    JS_CFUNC_MAGIC_DEF("toLocaleLowerCase", 0, js_string_toLowerCase, 1 ),
-    JS_CFUNC_MAGIC_DEF("toLocaleUpperCase", 0, js_string_toLowerCase, 0 ),
-    JS_CFUNC_MAGIC_DEF("[Symbol.iterator]", 0, js_create_array_iterator, JS_ITERATOR_KIND_VALUE | 4 ),
-    /* ES6 Annex B 2.3.2 etc. */
-    JS_CFUNC_MAGIC_DEF("anchor", 1, js_string_CreateHTML, magic_string_anchor ),
-    JS_CFUNC_MAGIC_DEF("big", 0, js_string_CreateHTML, magic_string_big ),
-    JS_CFUNC_MAGIC_DEF("blink", 0, js_string_CreateHTML, magic_string_blink ),
-    JS_CFUNC_MAGIC_DEF("bold", 0, js_string_CreateHTML, magic_string_bold ),
-    JS_CFUNC_MAGIC_DEF("fixed", 0, js_string_CreateHTML, magic_string_fixed ),
-    JS_CFUNC_MAGIC_DEF("fontcolor", 1, js_string_CreateHTML, magic_string_fontcolor ),
-    JS_CFUNC_MAGIC_DEF("fontsize", 1, js_string_CreateHTML, magic_string_fontsize ),
-    JS_CFUNC_MAGIC_DEF("italics", 0, js_string_CreateHTML, magic_string_italics ),
-    JS_CFUNC_MAGIC_DEF("link", 1, js_string_CreateHTML, magic_string_link ),
-    JS_CFUNC_MAGIC_DEF("small", 0, js_string_CreateHTML, magic_string_small ),
-    JS_CFUNC_MAGIC_DEF("strike", 0, js_string_CreateHTML, magic_string_strike ),
-    JS_CFUNC_MAGIC_DEF("sub", 0, js_string_CreateHTML, magic_string_sub ),
-    JS_CFUNC_MAGIC_DEF("sup", 0, js_string_CreateHTML, magic_string_sup ),
-};
-
-static const JSCFunctionListEntry js_string_iterator_proto_funcs[] = {
-    JS_ITERATOR_NEXT_DEF("next", 0, js_string_iterator_next, 0 ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "String Iterator", JS_PROP_CONFIGURABLE ),
-};
-
-#ifdef CONFIG_ALL_UNICODE
-static const JSCFunctionListEntry js_string_proto_normalize[] = {
-    JS_CFUNC_DEF("normalize", 0, js_string_normalize ),
-};
-#endif
-
-void JS_AddIntrinsicStringNormalize(JSContext *ctx)
-{
-#ifdef CONFIG_ALL_UNICODE
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_STRING], js_string_proto_normalize,
-                               countof(js_string_proto_normalize));
-#endif
-}
-
-/* Math */
-
-/* precondition: a and b are not NaN */
-static double js_fmin(double a, double b)
-{
-    if (a == 0 && b == 0) {
-        JSFloat64Union a1, b1;
-        a1.d = a;
-        b1.d = b;
-        a1.u64 |= b1.u64;
-        return a1.d;
-    } else {
-        return fmin(a, b);
-    }
-}
-
-/* precondition: a and b are not NaN */
-static double js_fmax(double a, double b)
-{
-    if (a == 0 && b == 0) {
-        JSFloat64Union a1, b1;
-        a1.d = a;
-        b1.d = b;
-        a1.u64 &= b1.u64;
-        return a1.d;
-    } else {
-        return fmax(a, b);
-    }
-}
-
-#ifdef CONFIG_BIGNUM
-
-enum {
-    MATH_OP_ABS,
-    MATH_OP_FLOOR,
-    MATH_OP_CEIL,
-    MATH_OP_ROUND,
-    MATH_OP_TRUNC,
-    MATH_OP_SQRT,
-    MATH_OP_FPROUND,
-    MATH_OP_ACOS,
-    MATH_OP_ASIN,
-    MATH_OP_ATAN,
-    MATH_OP_ATAN2,
-    MATH_OP_COS,
-    MATH_OP_EXP,
-    MATH_OP_LOG,
-    MATH_OP_POW,
-    MATH_OP_SIN,
-    MATH_OP_TAN,
-    MATH_OP_FMOD,
-    MATH_OP_REM,
-    MATH_OP_SIGN,
-
-    MATH_OP_ADD,
-    MATH_OP_SUB,
-    MATH_OP_MUL,
-    MATH_OP_DIV,
-};
-
-static JSValue js_math_fop(JSContext *ctx, JSValueConst this_val,
-                           int argc, JSValueConst *argv, int magic)
-{
-    bf_t a_s, *a, r_s, *r = &r_s;
-    BOOL is_float;
-    JSFloatEnv *fe;
-    int rnd_mode;
-    JSValue op1;
-
-    op1 = JS_ToNumber(ctx, argv[0]);
-    if (JS_IsException(op1))
-        return op1;
-    a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-    fe = &ctx->fp_env;
-    if (argc > 1) {
-        fe = JS_GetOpaque2(ctx, argv[1], JS_CLASS_FLOAT_ENV);
-        if (!fe) {
-            if (a == &a_s)
-                bf_delete(a);
-            JS_FreeValue(ctx, op1);
-            return JS_EXCEPTION;
-        }
-    }
-
-    bf_init(ctx->bf_ctx, r);
-    switch (magic) {
-    case MATH_OP_ABS:
-        bf_set(r, a);
-        r->sign = 0;
-        break;
-    case MATH_OP_FLOOR:
-        rnd_mode = BF_RNDD;
-        goto rint;
-    case MATH_OP_CEIL:
-        rnd_mode = BF_RNDU;
-        goto rint;
-    case MATH_OP_ROUND:
-        rnd_mode = BF_RNDNU;
-        goto rint;
-    case MATH_OP_TRUNC:
-        rnd_mode = BF_RNDZ;
-    rint:
-        bf_set(r, a);
-        fe->status |= bf_rint(r, fe->prec,
-                              (fe->flags & ~BF_RND_MASK) | rnd_mode);
-        break;
-    case MATH_OP_SQRT:
-        fe->status |= bf_sqrt(r, a, fe->prec, fe->flags);
-        break;
-    case MATH_OP_FPROUND:
-        bf_set(r, a);
-        fe->status |= bf_round(r, fe->prec, fe->flags);
-        break;
-    case MATH_OP_ACOS:
-        fe->status |= bf_acos(r, a, fe->prec, fe->flags);
-        break;
-    case MATH_OP_ASIN:
-        fe->status |= bf_asin(r, a, fe->prec, fe->flags);
-        break;
-    case MATH_OP_ATAN:
-        fe->status |= bf_atan(r, a, fe->prec, fe->flags);
-        break;
-    case MATH_OP_COS:
-        fe->status |= bf_cos(r, a, fe->prec, fe->flags);
-        break;
-    case MATH_OP_EXP:
-        fe->status |= bf_exp(r, a, fe->prec, fe->flags);
-        break;
-    case MATH_OP_LOG:
-        fe->status |= bf_log(r, a, fe->prec, fe->flags);
-        break;
-    case MATH_OP_SIN:
-        fe->status |= bf_sin(r, a, fe->prec, fe->flags);
-        break;
-    case MATH_OP_TAN:
-        fe->status |= bf_tan(r, a, fe->prec, fe->flags);
-        break;
-    case MATH_OP_SIGN:
-        if (bf_is_nan(a) || bf_is_zero(a)) {
-            bf_set(r, a);
-        } else {
-            bf_set_si(r, 1 - 2 * a->sign);
-        }
-        break;
-    default:
-        abort();
-    }
-    if (a == &a_s)
-        bf_delete(a);
-    JS_FreeValue(ctx, op1);
-    return JS_NewBigFloat(ctx, r);
-}
-
-static JSValue js_math_fop2(JSContext *ctx, JSValueConst this_val,
-                            int argc, JSValueConst *argv, int magic)
-{
-    bf_t a_s, *a, b_s, *b, r_s, *r = &r_s;
-    BOOL is_float;
-    JSFloatEnv *fe;
-    JSValue op1, op2;
-
-    op1 = JS_ToNumber(ctx, argv[0]);
-    if (JS_IsException(op1))
-        return op1;
-    op2 = JS_ToNumber(ctx, argv[1]);
-    if (JS_IsException(op2)) {
-        JS_FreeValue(ctx, op1);
-        return op2;
-    }
-    a = JS_ToBigFloat(ctx, &is_float, &a_s, op1);
-    b = JS_ToBigFloat(ctx, &is_float, &b_s, op2);
-    fe = &ctx->fp_env;
-    if (argc > 2) {
-        fe = JS_GetOpaque2(ctx, argv[2], JS_CLASS_FLOAT_ENV);
-        if (!fe) {
-            if (a == &a_s)
-                bf_delete(a);
-            if (b == &b_s)
-                bf_delete(b);
-            JS_FreeValue(ctx, op1);
-            JS_FreeValue(ctx, op2);
-            return JS_EXCEPTION;
-        }
-    }
-
-    bf_init(ctx->bf_ctx, r);
-    switch (magic) {
-    case MATH_OP_ATAN2:
-        fe->status |= bf_atan2(r, a, b, fe->prec, fe->flags);
-        break;
-    case MATH_OP_POW:
-        fe->status |= bf_pow(r, a, b, fe->prec, fe->flags | BF_POW_JS_QUICKS);
-        break;
-    case MATH_OP_FMOD:
-        fe->status |= bf_fmod(r, a, b, fe->prec, fe->flags);
-        break;
-    case MATH_OP_REM:
-        fe->status |= bf_remainder(r, a, b, fe->prec, fe->flags);
-        break;
-    case MATH_OP_ADD:
-        fe->status |= bf_add(r, a, b, fe->prec, fe->flags);
-        break;
-    case MATH_OP_SUB:
-        fe->status |= bf_sub(r, a, b, fe->prec, fe->flags);
-        break;
-    case MATH_OP_MUL:
-        fe->status |= bf_mul(r, a, b, fe->prec, fe->flags);
-        break;
-    case MATH_OP_DIV:
-        fe->status |= bf_div(r, a, b, fe->prec, fe->flags);
-        break;
-    default:
-        abort();
-    }
-    if (a == &a_s)
-        bf_delete(a);
-    if (b == &b_s)
-        bf_delete(b);
-    JS_FreeValue(ctx, op1);
-    JS_FreeValue(ctx, op2);
-    return JS_NewBigFloat(ctx, r);
-}
-
-static JSValue js_math_min_max(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv, int magic)
-{
-    BOOL is_max = magic;
-    JSValue val, ret;
-    int i;
-    uint32_t tag;
-
-    if (unlikely(argc == 0)) {
-        return __JS_NewFloat64(ctx, is_max ? -1.0 / 0.0 : 1.0 / 0.0);
-    }
-
-    tag = JS_VALUE_GET_TAG(argv[0]);
-    if (tag == JS_TAG_INT) {
-        int a1, r1 = JS_VALUE_GET_INT(argv[0]);
-        for(i = 1; i < argc; i++) {
-            tag = JS_VALUE_GET_TAG(argv[i]);
-            if (tag != JS_TAG_INT) {
-                ret = JS_NewInt32(ctx, r1);
-                goto generic_case;
-            }
-            a1 = JS_VALUE_GET_INT(argv[i]);
-            if (is_max)
-                r1 = max_int(r1, a1);
-            else
-                r1 = min_int(r1, a1);
-        }
-        ret = JS_NewInt32(ctx, r1);
-    } else {
-        ret = JS_ToNumber(ctx, argv[0]);
-        if (JS_IsException(ret))
-            return ret;
-        i = 1;
-    generic_case:
-        for(; i < argc; i++) {
-            val = JS_ToNumber(ctx, argv[i]);
-            if (JS_IsException(val)) {
-                JS_FreeValue(ctx, ret);
-                return val;
-            }
-            if (JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(ret)) &&
-                JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(val))) {
-                double r, a;
-                r = JS_VALUE_GET_FLOAT64(ret);
-                a = JS_VALUE_GET_FLOAT64(val);
-                if (!isnan(r)) {
-                    if (isnan(a)) {
-                        r = a;
-                    } else {
-                        if (is_max)
-                            r = js_fmax(r, a);
-                        else
-                            r = js_fmin(r, a);
-                    }
-                    ret = __JS_NewFloat64(ctx, r);
-                }
-            } else {
-                bf_t a_s, *a, r_s, *r;
-                BOOL is_float;
-                int res;
-
-                r = JS_ToBigFloat(ctx, &is_float, &r_s, ret);
-                if (!bf_is_nan(r)) {
-                    a = JS_ToBigFloat(ctx, &is_float, &a_s, val);
-                    res = bf_cmp_full(a, r);
-                    if (is_max)
-                        res = -res;
-                    if (bf_is_nan(a) || res < 0) {
-                        JS_FreeValue(ctx, ret);
-                        ret = JS_DupValue(ctx, val);
-                    }
-                    if (a == &a_s)
-                        bf_delete(a);
-                }
-                if (r == &r_s)
-                    bf_delete(r);
-            }
-        }
-    }
-    return ret;
-}
-
-static JSValue js_math_abs(JSContext *ctx, JSValueConst this_val,
-                           int argc, JSValueConst *argv)
-{
-    JSValue val;
-    uint32_t tag;
-
-    val = JS_ToNumeric(ctx, argv[0]);
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-        if (JS_VALUE_GET_INT(val) < 0)
-            val = JS_NewInt64(ctx, -(int64_t)JS_VALUE_GET_INT(val));
-        break;
-    case JS_TAG_FLOAT64:
-        val = __JS_NewFloat64(ctx, fabs(JS_VALUE_GET_FLOAT64(val)));
-        break;
-    case JS_TAG_BIG_FLOAT:
-    case JS_TAG_BIG_INT:
-        {
-            JSBigFloat *p = JS_VALUE_GET_PTR(val);
-            bf_t r_s, *r = &r_s;
-            bf_init(ctx->bf_ctx, r);
-            bf_set(r, &p->num);
-            r->sign = 0;
-            JS_FreeValue(ctx, val);
-            if (tag == JS_TAG_BIG_FLOAT)
-                val = JS_NewBigFloat(ctx, r);
-            else
-                val = JS_NewBigInt2(ctx, r, TRUE);
-        }
-        break;
-    default:
-        break;
-    }
-    return val;
-}
-
-#if 0
-/* XXX: should give exact rounding */
-/* XXX: correct NaN/Infinity handling */
-static JSValue js_math_hypot(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    bf_t a_s, *a, r_s, *r = &r_s, r2_s, *r2 = &r2_s;
-    JSValue val;
-    int i;
-    BOOL is_float;
-
-    bf_init(ctx->bf_ctx, r);
-    bf_set_si(r, 0);
-    for(i = 0; i < argc; i++) {
-        val = JS_ToNumber(ctx, argv[i]);
-        if (JS_IsException(val)) {
-            bf_delete(r);
-            return val;
-        }
-        a = JS_ToBigFloat(ctx, &is_float, &a_s, val);
-        bf_add(r, r, a, ctx->fp_env.prec, ctx->fp_env.flags);
-        if (a == &a_s)
-            bf_delete(a);
-    }
-    bf_init(ctx->bf_ctx, r2);
-    bf_sqrt(r2, r, ctx->fp_env.prec, ctx->fp_env.flags);
-    bf_delete(r);
-    return JS_NewBigFloat(ctx, r2);
-}
-#endif
-
-#else
-
-static JSValue js_math_min_max(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv, int magic)
-{
-    BOOL is_max = magic;
-    double r, a;
-    int i;
-    uint32_t tag;
-
-    if (unlikely(argc == 0)) {
-        return __JS_NewFloat64(ctx, is_max ? -1.0 / 0.0 : 1.0 / 0.0);
-    }
-
-    tag = JS_VALUE_GET_TAG(argv[0]);
-    if (tag == JS_TAG_INT) {
-        int a1, r1 = JS_VALUE_GET_INT(argv[0]);
-        for(i = 1; i < argc; i++) {
-            tag = JS_VALUE_GET_TAG(argv[i]);
-            if (tag != JS_TAG_INT) {
-                r = r1;
-                goto generic_case;
-            }
-            a1 = JS_VALUE_GET_INT(argv[i]);
-            if (is_max)
-                r1 = max_int(r1, a1);
-            else
-                r1 = min_int(r1, a1);
-
-        }
-        return JS_NewInt32(ctx, r1);
-    } else {
-        if (JS_ToFloat64(ctx, &r, argv[0]))
-            return JS_EXCEPTION;
-        i = 1;
-    generic_case:
-        while (i < argc) {
-            if (JS_ToFloat64(ctx, &a, argv[i]))
-                return JS_EXCEPTION;
-            if (!isnan(r)) {
-                if (isnan(a)) {
-                    r = a;
-                } else {
-                    if (is_max)
-                        r = js_fmax(r, a);
-                    else
-                        r = js_fmin(r, a);
-                }
-            }
-            i++;
-        }
-        return JS_NewFloat64(ctx, r);
-    }
-}
-
-#endif /* !CONFIG_BIGNUM */
-
-static double js_math_sign(double a)
-{
-    if (isnan(a) || a == 0.0)
-        return a;
-    if (a < 0)
-        return -1;
-    else
-        return 1;
-}
-
-static double js_math_round(double a)
-{
-    JSFloat64Union u;
-    uint64_t frac_mask, one;
-    unsigned int e, s;
-
-    u.d = a;
-    e = (u.u64 >> 52) & 0x7ff;
-    if (e < 1023) {
-        /* abs(a) < 1 */
-        if (e == (1023 - 1) && u.u64 != 0xbfe0000000000000) {
-            /* abs(a) > 0.5 or a = 0.5: return +/-1.0 */
-            u.u64 = (u.u64 & ((uint64_t)1 << 63)) | ((uint64_t)1023 << 52);
-        } else {
-            /* return +/-0.0 */
-            u.u64 &= (uint64_t)1 << 63;
-        }
-    } else if (e < (1023 + 52)) {
-        s = u.u64 >> 63;
-        one = (uint64_t)1 << (52 - (e - 1023));
-        frac_mask = one - 1;
-        u.u64 += (one >> 1) - s;
-        u.u64 &= ~frac_mask; /* truncate to an integer */
-    }
-    /* otherwise: abs(a) >= 2^52, or NaN, +/-Infinity: no change */
-    return u.d;
-}
-
-static JSValue js_math_hypot(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    double r, a, b;
-    int i;
-
-    if (argc == 2) {
-        /* use the more precise built-in function when possible */
-        if (JS_ToFloat64(ctx, &a, argv[0]))
-            return JS_EXCEPTION;
-        if (JS_ToFloat64(ctx, &b, argv[1]))
-            return JS_EXCEPTION;
-        r = hypot(a, b);
-    } else {
-        r = 0;
-        for(i = 0; i < argc; i++) {
-            if (JS_ToFloat64(ctx, &a, argv[i]))
-                return JS_EXCEPTION;
-            r += a;
-        }
-        r = sqrt(r);
-    }
-    return JS_NewFloat64(ctx, r);
-}
-
-static double js_math_fround(double a)
-{
-    return (float)a;
-}
-
-static JSValue js_math_imul(JSContext *ctx, JSValueConst this_val,
-                            int argc, JSValueConst *argv)
-{
-    int a, b;
-
-    if (JS_ToInt32(ctx, &a, argv[0]))
-        return JS_EXCEPTION;
-    if (JS_ToInt32(ctx, &b, argv[1]))
-        return JS_EXCEPTION;
-    /* purposely ignoring overflow */
-    return JS_NewInt32(ctx, a * b);
-}
-
-static JSValue js_math_clz32(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    uint32_t a, r;
-
-    if (JS_ToUint32(ctx, &a, argv[0]))
-        return JS_EXCEPTION;
-    if (a == 0)
-        r = 32;
-    else
-        r = clz32(a);
-    return JS_NewInt32(ctx, r);
-}
-
-/* xorshift* random number generator by Marsaglia */
-static uint64_t xorshift64star(uint64_t *pstate)
-{
-    uint64_t x;
-    x = *pstate;
-    x ^= x >> 12;
-    x ^= x << 25;
-    x ^= x >> 27;
-    *pstate = x;
-    return x * 0x2545F4914F6CDD1D;
-}
-
-static void js_random_init(JSContext *ctx)
-{
-    struct timeval tv;
-    gettimeofday(&tv, NULL);
-    ctx->random_state = ((int64_t)tv.tv_sec * 1000000) + tv.tv_usec;
-    /* the state must be non zero */
-    if (ctx->random_state == 0)
-        ctx->random_state = 1;
-}
-
-static JSValue js_math_random(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv)
-{
-    JSFloat64Union u;
-    uint64_t v;
-
-    v = xorshift64star(&ctx->random_state);
-    /* 1.0 <= u.d < 2 */
-    u.u64 = ((uint64_t)0x3ff << 52) | (v >> 12);
-    return __JS_NewFloat64(ctx, u.d - 1.0);
-}
-
-static const JSCFunctionListEntry js_math_funcs[] = {
-    JS_CFUNC_MAGIC_DEF("min", 2, js_math_min_max, 0 ),
-    JS_CFUNC_MAGIC_DEF("max", 2, js_math_min_max, 1 ),
-#ifdef CONFIG_BIGNUM
-    JS_CFUNC_DEF("abs", 1, js_math_abs ),
-#else
-    JS_CFUNC_SPECIAL_DEF("abs", 1, f_f, fabs ),
-#endif
-    JS_CFUNC_SPECIAL_DEF("floor", 1, f_f, floor ),
-    JS_CFUNC_SPECIAL_DEF("ceil", 1, f_f, ceil ),
-    JS_CFUNC_SPECIAL_DEF("round", 1, f_f, js_math_round ),
-    JS_CFUNC_SPECIAL_DEF("sqrt", 1, f_f, sqrt ),
-
-    JS_CFUNC_SPECIAL_DEF("acos", 1, f_f, acos ),
-    JS_CFUNC_SPECIAL_DEF("asin", 1, f_f, asin ),
-    JS_CFUNC_SPECIAL_DEF("atan", 1, f_f, atan ),
-    JS_CFUNC_SPECIAL_DEF("atan2", 2, f_f_f, atan2 ),
-    JS_CFUNC_SPECIAL_DEF("cos", 1, f_f, cos ),
-    JS_CFUNC_SPECIAL_DEF("exp", 1, f_f, exp ),
-    JS_CFUNC_SPECIAL_DEF("log", 1, f_f, log ),
-    JS_CFUNC_SPECIAL_DEF("pow", 2, f_f_f, js_pow ),
-    JS_CFUNC_SPECIAL_DEF("sin", 1, f_f, sin ),
-    JS_CFUNC_SPECIAL_DEF("tan", 1, f_f, tan ),
-    /* ES6 */
-    JS_CFUNC_SPECIAL_DEF("trunc", 1, f_f, trunc ),
-    JS_CFUNC_SPECIAL_DEF("sign", 1, f_f, js_math_sign ),
-    JS_CFUNC_SPECIAL_DEF("cosh", 1, f_f, cosh ),
-    JS_CFUNC_SPECIAL_DEF("sinh", 1, f_f, sinh ),
-    JS_CFUNC_SPECIAL_DEF("tanh", 1, f_f, tanh ),
-    JS_CFUNC_SPECIAL_DEF("acosh", 1, f_f, acosh ),
-    JS_CFUNC_SPECIAL_DEF("asinh", 1, f_f, asinh ),
-    JS_CFUNC_SPECIAL_DEF("atanh", 1, f_f, atanh ),
-    JS_CFUNC_SPECIAL_DEF("expm1", 1, f_f, expm1 ),
-    JS_CFUNC_SPECIAL_DEF("log1p", 1, f_f, log1p ),
-    JS_CFUNC_SPECIAL_DEF("log2", 1, f_f, log2 ),
-    JS_CFUNC_SPECIAL_DEF("log10", 1, f_f, log10 ),
-    JS_CFUNC_SPECIAL_DEF("cbrt", 1, f_f, cbrt ),
-    JS_CFUNC_DEF("hypot", 2, js_math_hypot ),
-    JS_CFUNC_DEF("random", 0, js_math_random ),
-    JS_CFUNC_SPECIAL_DEF("fround", 1, f_f, js_math_fround ),
-    JS_CFUNC_DEF("imul", 2, js_math_imul ),
-    JS_CFUNC_DEF("clz32", 1, js_math_clz32 ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Math", JS_PROP_CONFIGURABLE ),
-    JS_PROP_DOUBLE_DEF("E", 2.718281828459045, 0 ),
-    JS_PROP_DOUBLE_DEF("LN10", 2.302585092994046, 0 ),
-    JS_PROP_DOUBLE_DEF("LN2", 0.6931471805599453, 0 ),
-    JS_PROP_DOUBLE_DEF("LOG2E", 1.4426950408889634, 0 ),
-    JS_PROP_DOUBLE_DEF("LOG10E", 0.4342944819032518, 0 ),
-    JS_PROP_DOUBLE_DEF("PI", 3.141592653589793, 0 ),
-    JS_PROP_DOUBLE_DEF("SQRT1_2", 0.7071067811865476, 0 ),
-    JS_PROP_DOUBLE_DEF("SQRT2", 1.4142135623730951, 0 ),
-};
-
-static const JSCFunctionListEntry js_math_obj[] = {
-    JS_OBJECT_DEF("Math", js_math_funcs, countof(js_math_funcs), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
-};
-
-/* Date */
-
-#if 0
-/* OS dependent: return the UTC time in ms since 1970. */
-static JSValue js___date_now(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    int64_t d;
-    struct timeval tv;
-    gettimeofday(&tv, NULL);
-    d = (int64_t)tv.tv_sec * 1000 + (tv.tv_usec / 1000);
-    return JS_NewInt64(ctx, d);
-}
-#endif
-
-/* OS dependent: return the UTC time in microseconds since 1970. */
-static JSValue js___date_clock(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv)
-{
-    int64_t d;
-    struct timeval tv;
-    gettimeofday(&tv, NULL);
-    d = (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
-    return JS_NewInt64(ctx, d);
-}
-
-/* OS dependent. d = argv[0] is in ms from 1970. Return the difference
-   between local time and UTC time 'd' in minutes */
-static int getTimezoneOffset(int64_t time) {
-#if defined(_WIN32)
-    /* XXX: TODO */
-    return 0;
-#else
-    time_t ti;
-    struct tm tm;
-
-    time /= 1000; /* convert to seconds */
-    if (sizeof(time_t) == 4) {
-        /* on 32-bit systems, we need to clamp the time value to the
-           range of `time_t`. This is better than truncating values to
-           32 bits and hopefully provides the same result as 64-bit
-           implementation of localtime_r.
-         */
-        if ((time_t)-1 < 0) {
-            if (time < INT32_MIN) {
-                time = INT32_MIN;
-            } else if (time > INT32_MAX) {
-                time = INT32_MAX;
-            }
-        } else {
-            if (time < 0) {
-                time = 0;
-            } else if (time > UINT32_MAX) {
-                time = UINT32_MAX;
-            }
-        }
-    }
-    ti = time;
-    localtime_r(&ti, &tm);
-    return -tm.tm_gmtoff / 60;
-#endif
-}
-
-#if 0
-static JSValue js___date_getTimezoneOffset(JSContext *ctx, JSValueConst this_val,
-                                           int argc, JSValueConst *argv)
-{
-    double dd;
-
-    if (JS_ToFloat64(ctx, &dd, argv[0]))
-        return JS_EXCEPTION;
-    if (isnan(dd))
-        return __JS_NewFloat64(ctx, dd);
-    else
-        return JS_NewInt32(ctx, getTimezoneOffset((int64_t)dd));
-}
-
-/* create a new date object */
-static JSValue js___date_create(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSValue obj, proto;
-    proto = js_get_prototype_from_ctor(ctx, argv[0], argv[1]);
-    if (JS_IsException(proto))
-        return proto;
-    obj = JS_NewObjectProtoClass(ctx, proto, JS_CLASS_DATE);
-    JS_FreeValue(ctx, proto);
-    if (!JS_IsException(obj))
-        JS_SetObjectData(ctx, obj, JS_DupValue(ctx, argv[2]));
-    return obj;
-}
-#endif
-
-/* RegExp */
-
-static void js_regexp_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSRegExp *re = &p->u.regexp;
-    JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_STRING, re->bytecode));
-    JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_STRING, re->pattern));
-}
-
-/* create a string containing the RegExp bytecode */
-static JSValue js_compile_regexp(JSContext *ctx, JSValueConst pattern,
-                                 JSValueConst flags)
-{
-    const char *str;
-    int re_flags, mask;
-    uint8_t *re_bytecode_buf;
-    size_t i, len;
-    int re_bytecode_len;
-    JSValue ret;
-    char error_msg[64];
-
-    re_flags = 0;
-    if (!JS_IsUndefined(flags)) {
-        str = JS_ToCStringLen(ctx, &len, flags);
-        if (!str)
-            return JS_EXCEPTION;
-        /* XXX: re_flags = LRE_FLAG_OCTAL unless strict mode? */
-        for (i = 0; i < len; i++) {
-            switch(str[i]) {
-            case 'g':
-                mask = LRE_FLAG_GLOBAL;
-                break;
-            case 'i':
-                mask = LRE_FLAG_IGNORECASE;
-                break;
-            case 'm':
-                mask = LRE_FLAG_MULTILINE;
-                break;
-            case 's':
-                mask = LRE_FLAG_DOTALL;
-                break;
-            case 'u':
-                mask = LRE_FLAG_UTF16;
-                break;
-            case 'y':
-                mask = LRE_FLAG_STICKY;
-                break;
-            default:
-                goto bad_flags;
-            }
-            if ((re_flags & mask) != 0) {
-            bad_flags:
-                JS_FreeCString(ctx, str);
-                return JS_ThrowSyntaxError(ctx, "invalid regular expression flags");
-            }
-            re_flags |= mask;
-        }
-        JS_FreeCString(ctx, str);
-    }
-
-    str = JS_ToCStringLen2(ctx, &len, pattern, !(re_flags & LRE_FLAG_UTF16));
-    if (!str)
-        return JS_EXCEPTION;
-    re_bytecode_buf = lre_compile(&re_bytecode_len, error_msg,
-                                  sizeof(error_msg), str, len, re_flags, ctx);
-    JS_FreeCString(ctx, str);
-    if (!re_bytecode_buf) {
-        JS_ThrowSyntaxError(ctx, "%s", error_msg);
-        return JS_EXCEPTION;
-    }
-
-    ret = js_new_string8(ctx, re_bytecode_buf, re_bytecode_len);
-    js_free(ctx, re_bytecode_buf);
-    return ret;
-}
-
-/* create a RegExp object from a string containing the RegExp bytecode
-   and the source pattern */
-static JSValue js_regexp_constructor_internal(JSContext *ctx, JSValueConst ctor,
-                                              JSValue pattern, JSValue bc)
-{
-    JSValue obj;
-    JSObject *p;
-    JSRegExp *re;
-
-    /* sanity check */
-    if (JS_VALUE_GET_TAG(bc) != JS_TAG_STRING ||
-        JS_VALUE_GET_TAG(pattern) != JS_TAG_STRING) {
-        JS_ThrowTypeError(ctx, "string expected");
-    fail:
-        JS_FreeValue(ctx, bc);
-        JS_FreeValue(ctx, pattern);
-        return JS_EXCEPTION;
-    }
-
-    obj = js_create_from_ctor(ctx, ctor, JS_CLASS_REGEXP);
-    if (JS_IsException(obj))
-        goto fail;
-    p = JS_VALUE_GET_OBJ(obj);
-    re = &p->u.regexp;
-    re->pattern = JS_VALUE_GET_STRING(pattern);
-    re->bytecode = JS_VALUE_GET_STRING(bc);
-    JS_DefinePropertyValue(ctx, obj, JS_ATOM_lastIndex, JS_NewInt32(ctx, 0),
-                           JS_PROP_WRITABLE);
-    return obj;
-}
-
-static JSRegExp *js_get_regexp(JSContext *ctx, JSValueConst obj, BOOL throw_error)
-{
-    if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(obj);
-        if (p->class_id == JS_CLASS_REGEXP)
-            return &p->u.regexp;
-    }
-    if (throw_error) {
-        JS_ThrowTypeErrorInvalidClass(ctx, JS_CLASS_REGEXP);
-    }
-    return NULL;
-}
-
-/* return < 0 if exception or TRUE/FALSE */
-static int js_is_regexp(JSContext *ctx, JSValueConst obj)
-{
-    JSValue m;
-
-    if (!JS_IsObject(obj))
-        return FALSE;
-    m = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_match);
-    if (JS_IsException(m))
-        return -1;
-    if (!JS_IsUndefined(m))
-        return JS_ToBoolFree(ctx, m);
-    return js_get_regexp(ctx, obj, FALSE) != NULL;
-}
-
-static JSValue js_regexp_constructor(JSContext *ctx, JSValueConst new_target,
-                                     int argc, JSValueConst *argv)
-{
-    JSValue pattern, flags, bc, val;
-    JSValueConst pat, flags1;
-    JSRegExp *re;
-    int pat_is_regexp;
-
-    pat = argv[0];
-    flags1 = argv[1];
-    pat_is_regexp = js_is_regexp(ctx, pat);
-    if (pat_is_regexp < 0)
-        return JS_EXCEPTION;
-    if (JS_IsUndefined(new_target)) {
-        /* called as a function */
-        new_target = JS_GetActiveFunction(ctx);
-        if (pat_is_regexp && JS_IsUndefined(flags1)) {
-            JSValue ctor;
-            BOOL res;
-            ctor = JS_GetProperty(ctx, pat, JS_ATOM_constructor);
-            if (JS_IsException(ctor))
-                return ctor;
-            res = js_same_value(ctx, ctor, new_target);
-            JS_FreeValue(ctx, ctor);
-            if (res)
-                return JS_DupValue(ctx, pat);
-        }
-    }
-    re = js_get_regexp(ctx, pat, FALSE);
-    if (re) {
-        pattern = JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, re->pattern));
-        if (JS_IsUndefined(flags1)) {
-            bc = JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, re->bytecode));
-            goto no_compilation;
-        } else {
-            flags = JS_ToString(ctx, flags1);
-            if (JS_IsException(flags))
-                goto fail;
-        }
-    } else {
-        flags = JS_UNDEFINED;
-        if (pat_is_regexp) {
-            pattern = JS_GetProperty(ctx, pat, JS_ATOM_source);
-            if (JS_IsException(pattern))
-                goto fail;
-            if (JS_IsUndefined(flags1)) {
-                flags = JS_GetProperty(ctx, pat, JS_ATOM_flags);
-                if (JS_IsException(flags))
-                    goto fail;
-            } else {
-                flags = JS_DupValue(ctx, flags1);
-            }
-        } else {
-            pattern = JS_DupValue(ctx, pat);
-            flags = JS_DupValue(ctx, flags1);
-        }
-        if (JS_IsUndefined(pattern)) {
-            pattern = JS_AtomToString(ctx, JS_ATOM_empty_string);
-        } else {
-            val = pattern;
-            pattern = JS_ToString(ctx, val);
-            JS_FreeValue(ctx, val);
-            if (JS_IsException(pattern))
-                goto fail;
-        }
-    }
-    bc = js_compile_regexp(ctx, pattern, flags);
-    if (JS_IsException(bc))
-        goto fail;
-    JS_FreeValue(ctx, flags);
- no_compilation:
-    return js_regexp_constructor_internal(ctx, new_target, pattern, bc);
- fail:
-    JS_FreeValue(ctx, pattern);
-    JS_FreeValue(ctx, flags);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_regexp_compile(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    JSRegExp *re1, *re;
-    JSValueConst pattern1, flags1;
-    JSValue bc, pattern;
-
-    re = js_get_regexp(ctx, this_val, TRUE);
-    if (!re)
-        return JS_EXCEPTION;
-    pattern1 = argv[0];
-    flags1 = argv[1];
-    re1 = js_get_regexp(ctx, pattern1, FALSE);
-    if (re1) {
-        if (!JS_IsUndefined(flags1))
-            return JS_ThrowTypeError(ctx, "flags must be undefined");
-        pattern = JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, re1->pattern));
-        bc = JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, re1->bytecode));
-    } else {
-        bc = JS_UNDEFINED;
-        if (JS_IsUndefined(pattern1))
-            pattern = JS_AtomToString(ctx, JS_ATOM_empty_string);
-        else
-            pattern = JS_ToString(ctx, pattern1);
-        if (JS_IsException(pattern))
-            goto fail;
-        bc = js_compile_regexp(ctx, pattern, flags1);
-        if (JS_IsException(bc))
-            goto fail;
-    }
-    JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, re->pattern));
-    JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, re->bytecode));
-    re->pattern = JS_VALUE_GET_STRING(pattern);
-    re->bytecode = JS_VALUE_GET_STRING(bc);
-    if (JS_SetProperty(ctx, this_val, JS_ATOM_lastIndex,
-                       JS_NewInt32(ctx, 0)) < 0)
-        return JS_EXCEPTION;
-    return JS_DupValue(ctx, this_val);
- fail:
-    JS_FreeValue(ctx, pattern);
-    JS_FreeValue(ctx, bc);
-    return JS_EXCEPTION;
-}
-
-#if 0
-static JSValue js_regexp_get___source(JSContext *ctx, JSValueConst this_val)
-{
-    JSRegExp *re = js_get_regexp(ctx, this_val, TRUE);
-    if (!re)
-        return JS_EXCEPTION;
-    return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, re->pattern));
-}
-
-static JSValue js_regexp_get___flags(JSContext *ctx, JSValueConst this_val)
-{
-    JSRegExp *re = js_get_regexp(ctx, this_val, TRUE);
-    int flags;
-
-    if (!re)
-        return JS_EXCEPTION;
-    flags = lre_get_flags(re->bytecode->u.str8);
-    return JS_NewInt32(ctx, flags);
-}
-#endif
-
-static JSValue js_regexp_get_source(JSContext *ctx, JSValueConst this_val)
-{
-    JSRegExp *re;
-    JSString *p;
-    StringBuffer b_s, *b = &b_s;
-    int i, n, c, c2, bra;
-
-    if (JS_VALUE_GET_TAG(this_val) != JS_TAG_OBJECT)
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-
-    if (js_same_value(ctx, this_val, ctx->class_proto[JS_CLASS_REGEXP]))
-        goto empty_regex;
-
-    re = js_get_regexp(ctx, this_val, TRUE);
-    if (!re)
-        return JS_EXCEPTION;
-
-    p = re->pattern;
-
-    if (p->len == 0) {
-    empty_regex:
-        return JS_NewString(ctx, "(?:)");
-    }    
-    string_buffer_init2(ctx, b, p->len, p->is_wide_char);
-
-    /* Escape '/' and newline sequences as needed */
-    bra = 0;
-    for (i = 0, n = p->len; i < n;) {
-        c2 = -1;
-        switch (c = string_get(p, i++)) {
-        case '\\':
-            if (i < n)
-                c2 = string_get(p, i++);
-            break;
-        case ']':
-            bra = 0;
-            break;
-        case '[':
-            if (!bra) {
-                if (i < n && string_get(p, i) == ']')
-                    c2 = string_get(p, i++);
-                bra = 1;
-            }
-            break;
-        case '\n':
-            c = '\\';
-            c2 = 'n';
-            break;
-        case '\r':
-            c = '\\';
-            c2 = 'r';
-            break;
-        case '/':
-            if (!bra) {
-                c = '\\';
-                c2 = '/';
-            }
-            break;
-        }
-        string_buffer_putc16(b, c);
-        if (c2 >= 0)
-            string_buffer_putc16(b, c2);
-    }
-    return string_buffer_end(b);
-}
-
-static JSValue js_regexp_get_flag(JSContext *ctx, JSValueConst this_val, int mask)
-{
-    JSRegExp *re;
-    int flags;
-
-    if (JS_VALUE_GET_TAG(this_val) != JS_TAG_OBJECT)
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-
-    if (js_same_value(ctx, this_val, ctx->class_proto[JS_CLASS_REGEXP]))
-        return JS_UNDEFINED;
-
-    re = js_get_regexp(ctx, this_val, TRUE);
-    if (!re)
-        return JS_EXCEPTION;
-
-    flags = lre_get_flags(re->bytecode->u.str8);
-    return JS_NewBool(ctx, (flags & mask) != 0);
-}
-
-static JSValue js_regexp_get_flags(JSContext *ctx, JSValueConst this_val)
-{
-    char str[8], *p = str;
-    int res;
-
-    if (JS_VALUE_GET_TAG(this_val) != JS_TAG_OBJECT)
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-
-    res = JS_ToBoolFree(ctx, JS_GetProperty(ctx, this_val, JS_ATOM_global));
-    if (res < 0)
-        goto exception;
-    if (res)
-        *p++ = 'g';
-    res = JS_ToBoolFree(ctx, JS_GetPropertyStr(ctx, this_val, "ignoreCase"));
-    if (res < 0)
-        goto exception;
-    if (res)
-        *p++ = 'i';
-    res = JS_ToBoolFree(ctx, JS_GetPropertyStr(ctx, this_val, "multiline"));
-    if (res < 0)
-        goto exception;
-    if (res)
-        *p++ = 'm';
-    res = JS_ToBoolFree(ctx, JS_GetPropertyStr(ctx, this_val, "dotAll"));
-    if (res < 0)
-        goto exception;
-    if (res)
-        *p++ = 's';
-    res = JS_ToBoolFree(ctx, JS_GetProperty(ctx, this_val, JS_ATOM_unicode));
-    if (res < 0)
-        goto exception;
-    if (res)
-        *p++ = 'u';
-    res = JS_ToBoolFree(ctx, JS_GetPropertyStr(ctx, this_val, "sticky"));
-    if (res < 0)
-        goto exception;
-    if (res)
-        *p++ = 'y';
-    return JS_NewStringLen(ctx, str, p - str);
-
-exception:
-    return JS_EXCEPTION;
-}
-
-static JSValue js_regexp_toString(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    JSValue pattern, flags;
-    StringBuffer b_s, *b = &b_s;
-
-    if (!JS_IsObject(this_val))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-
-    string_buffer_init(ctx, b, 0);
-    string_buffer_putc8(b, '/');
-    pattern = JS_GetProperty(ctx, this_val, JS_ATOM_source);
-    if (string_buffer_concat_value_free(b, pattern))
-        goto fail;
-    string_buffer_putc8(b, '/');
-    flags = JS_GetProperty(ctx, this_val, JS_ATOM_flags);
-    if (string_buffer_concat_value_free(b, flags))
-        goto fail;
-    return string_buffer_end(b);
-
-fail:
-    string_buffer_free(b);
-    return JS_EXCEPTION;
-}
-
-BOOL lre_check_stack_overflow(void *opaque, size_t alloca_size)
-{
-    JSContext *ctx = opaque;
-    return js_check_stack_overflow(ctx, alloca_size);
-}
-
-void *lre_realloc(void *opaque, void *ptr, size_t size)
-{
-    JSContext *ctx = opaque;
-    /* No JS exception is raised here */
-    return js_realloc_rt(ctx->rt, ptr, size);
-}
-
-static JSValue js_regexp_exec(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv)
-{
-    JSRegExp *re = js_get_regexp(ctx, this_val, TRUE);
-    JSString *str;
-    JSValue str_val, obj, val, groups = JS_UNDEFINED;
-    uint8_t *re_bytecode;
-    int ret;
-    uint8_t **capture, *str_buf;
-    int capture_count, shift, i, re_flags;
-    int64_t last_index;
-    const char *group_name_ptr;
-
-    if (!re)
-        return JS_EXCEPTION;
-    str_val = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(str_val))
-        return str_val;
-    val = JS_GetProperty(ctx, this_val, JS_ATOM_lastIndex);
-    if (JS_IsException(val) ||
-        JS_ToLengthFree(ctx, &last_index, val)) {
-        JS_FreeValue(ctx, str_val);
-        return JS_EXCEPTION;
-    }
-    re_bytecode = re->bytecode->u.str8;
-    re_flags = lre_get_flags(re_bytecode);
-    if ((re_flags & (LRE_FLAG_GLOBAL | LRE_FLAG_STICKY)) == 0) {
-        last_index = 0;
-    }
-    str = JS_VALUE_GET_STRING(str_val);
-    capture_count = lre_get_capture_count(re_bytecode);
-    capture = NULL;
-    if (capture_count > 0) {
-        capture = js_malloc(ctx, sizeof(capture[0]) * capture_count * 2);
-        if (!capture) {
-            JS_FreeValue(ctx, str_val);
-            return JS_EXCEPTION;
-        }
-    }
-    shift = str->is_wide_char;
-    str_buf = str->u.str8;
-    if (last_index > str->len) {
-        ret = 2;
-    } else {
-        ret = lre_exec(capture, re_bytecode,
-                       str_buf, last_index, str->len,
-                       shift, ctx);
-    }
-    obj = JS_NULL;
-    if (ret != 1) {
-        if (ret >= 0) {
-            if (ret == 2 || (re_flags & (LRE_FLAG_GLOBAL | LRE_FLAG_STICKY))) {
-                if (JS_SetProperty(ctx, this_val, JS_ATOM_lastIndex,
-                                   JS_NewInt32(ctx, 0)) < 0)
-                    goto fail;
-            }
-        } else {
-            JS_ThrowInternalError(ctx, "out of memory in regexp execution");
-            goto fail;
-        }
-        JS_FreeValue(ctx, str_val);
-    } else {
-        int prop_flags;
-        if (re_flags & (LRE_FLAG_GLOBAL | LRE_FLAG_STICKY)) {
-            if (JS_SetProperty(ctx, this_val, JS_ATOM_lastIndex,
-                               JS_NewInt32(ctx, (capture[1] - str_buf) >> shift)) < 0)
-                goto fail;
-        }
-        obj = JS_NewArray(ctx);
-        if (JS_IsException(obj))
-            goto fail;
-        prop_flags = JS_PROP_C_W_E | JS_PROP_THROW;
-        group_name_ptr = NULL;
-        if (re_flags & LRE_FLAG_NAMED_GROUPS) {
-            uint32_t re_bytecode_len;
-            groups = JS_NewObjectProto(ctx, JS_NULL);
-            if (JS_IsException(groups))
-                goto fail;
-            re_bytecode_len = get_u32(re_bytecode + 3);
-            group_name_ptr = (char *)(re_bytecode + 7 + re_bytecode_len);
-        }
-
-        for(i = 0; i < capture_count; i++) {
-            int start, end;
-            JSValue val;
-            if (capture[2 * i] == NULL ||
-                capture[2 * i + 1] == NULL) {
-                val = JS_UNDEFINED;
-            } else {
-                start = (capture[2 * i] - str_buf) >> shift;
-                end = (capture[2 * i + 1] - str_buf) >> shift;
-                val = js_sub_string(ctx, str, start, end);
-                if (JS_IsException(val))
-                    goto fail;
-            }
-            if (group_name_ptr && i > 0) {
-                if (*group_name_ptr) {
-                    if (JS_DefinePropertyValueStr(ctx, groups, group_name_ptr,
-                                                  JS_DupValue(ctx, val),
-                                                  prop_flags) < 0) {
-                        JS_FreeValue(ctx, val);
-                        goto fail;
-                    }
-                }
-                group_name_ptr += strlen(group_name_ptr) + 1;
-            }
-            if (JS_DefinePropertyValueUint32(ctx, obj, i, val, prop_flags) < 0)
-                goto fail;
-        }
-        if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_groups,
-                                   groups, prop_flags) < 0)
-            goto fail;
-        if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_index,
-                                   JS_NewInt32(ctx, (capture[0] - str_buf) >> shift), prop_flags) < 0)
-            goto fail;
-        if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_input, str_val, prop_flags) < 0)
-            goto fail1;
-    }
-    js_free(ctx, capture);
-    return obj;
-fail:
-    JS_FreeValue(ctx, groups);
-    JS_FreeValue(ctx, str_val);
-fail1:
-    JS_FreeValue(ctx, obj);
-    js_free(ctx, capture);
-    return JS_EXCEPTION;
-}
-
-/* delete partions of a string that match a given regex */
-static JSValue JS_RegExpDelete(JSContext *ctx, JSValueConst this_val, JSValueConst arg)
-{
-    JSRegExp *re = js_get_regexp(ctx, this_val, TRUE);
-    JSString *str;
-    JSValue str_val, val;
-    uint8_t *re_bytecode;
-    int ret;
-    uint8_t **capture, *str_buf;
-    int capture_count, shift, re_flags;
-    int next_src_pos, start, end;
-    int64_t last_index;
-    StringBuffer b_s, *b = &b_s;
-
-    if (!re)
-        return JS_EXCEPTION;
-
-    string_buffer_init(ctx, b, 0);
-
-    capture = NULL;
-    str_val = JS_ToString(ctx, arg);
-    if (JS_IsException(str_val))
-        goto fail;
-    str = JS_VALUE_GET_STRING(str_val);
-    re_bytecode = re->bytecode->u.str8;
-    re_flags = lre_get_flags(re_bytecode);
-    if ((re_flags & (LRE_FLAG_GLOBAL | LRE_FLAG_STICKY)) == 0) {
-        last_index = 0;
-    } else {
-        val = JS_GetProperty(ctx, this_val, JS_ATOM_lastIndex);
-        if (JS_IsException(val) || JS_ToLengthFree(ctx, &last_index, val))
-            goto fail;
-    }
-    capture_count = lre_get_capture_count(re_bytecode);
-    if (capture_count > 0) {
-        capture = js_malloc(ctx, sizeof(capture[0]) * capture_count * 2);
-        if (!capture)
-            goto fail;
-    }
-    shift = str->is_wide_char;
-    str_buf = str->u.str8;
-    next_src_pos = 0;
-    for (;;) {
-        if (last_index > str->len)
-            break;
-
-        ret = lre_exec(capture, re_bytecode,
-                       str_buf, last_index, str->len, shift, ctx);
-        if (ret != 1) {
-            if (ret >= 0) {
-                if (ret == 2 || (re_flags & (LRE_FLAG_GLOBAL | LRE_FLAG_STICKY))) {
-                    if (JS_SetProperty(ctx, this_val, JS_ATOM_lastIndex,
-                                       JS_NewInt32(ctx, 0)) < 0)
-                        goto fail;
-                }
-            } else {
-                JS_ThrowInternalError(ctx, "out of memory in regexp execution");
-                goto fail;
-            }
-            break;
-        }
-        start = (capture[0] - str_buf) >> shift;
-        end = (capture[1] - str_buf) >> shift;
-        last_index = end;
-        if (next_src_pos < start) {
-            if (string_buffer_concat(b, str, next_src_pos, start))
-                goto fail;
-        }
-        next_src_pos = end;
-        if (!(re_flags & LRE_FLAG_GLOBAL)) {
-            if (JS_SetProperty(ctx, this_val, JS_ATOM_lastIndex,
-                               JS_NewInt32(ctx, end)) < 0)
-                goto fail;
-            break;
-        }
-        if (end == start) {
-            if (!(re_flags & LRE_FLAG_UTF16) || (unsigned)end >= str->len || !str->is_wide_char) {
-                end++;
-            } else {
-                string_getc(str, &end);
-            }
-        }
-        last_index = end;
-    }
-    if (string_buffer_concat(b, str, next_src_pos, str->len))
-        goto fail;
-    JS_FreeValue(ctx, str_val);
-    js_free(ctx, capture);
-    return string_buffer_end(b);
-fail:
-    JS_FreeValue(ctx, str_val);
-    js_free(ctx, capture);
-    string_buffer_free(b);
-    return JS_EXCEPTION;
-}
-
-static JSValue JS_RegExpExec(JSContext *ctx, JSValueConst r, JSValueConst s)
-{
-    JSValue method, ret;
-
-    method = JS_GetProperty(ctx, r, JS_ATOM_exec);
-    if (JS_IsException(method))
-        return method;
-    if (JS_IsFunction(ctx, method)) {
-        ret = JS_CallFree(ctx, method, r, 1, &s);
-        if (JS_IsException(ret))
-            return ret;
-        if (!JS_IsObject(ret) && !JS_IsNull(ret)) {
-            JS_FreeValue(ctx, ret);
-            return JS_ThrowTypeError(ctx, "RegExp exec method must return an object or null");
-        }
-        return ret;
-    }
-    JS_FreeValue(ctx, method);
-    return js_regexp_exec(ctx, r, 1, &s);
-}
-
-#if 0
-static JSValue js_regexp___RegExpExec(JSContext *ctx, JSValueConst this_val,
-                                      int argc, JSValueConst *argv)
-{
-    return JS_RegExpExec(ctx, argv[0], argv[1]);
-}
-static JSValue js_regexp___RegExpDelete(JSContext *ctx, JSValueConst this_val,
-                                        int argc, JSValueConst *argv)
-{
-    return JS_RegExpDelete(ctx, argv[0], argv[1]);
-}
-#endif
-
-static JSValue js_regexp_test(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv)
-{
-    JSValue val;
-    BOOL ret;
-
-    val = JS_RegExpExec(ctx, this_val, argv[0]);
-    if (JS_IsException(val))
-        return JS_EXCEPTION;
-    ret = !JS_IsNull(val);
-    JS_FreeValue(ctx, val);
-    return JS_NewBool(ctx, ret);
-}
-
-static JSValue js_regexp_Symbol_match(JSContext *ctx, JSValueConst this_val,
-                                      int argc, JSValueConst *argv)
-{
-    // [Symbol.match](str)
-    JSValueConst rx = this_val;
-    JSValue A, S, result, matchStr;
-    int global, n, fullUnicode, isEmpty;
-    JSString *p;
-
-    if (!JS_IsObject(rx))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-
-    A = JS_UNDEFINED;
-    result = JS_UNDEFINED;
-    matchStr = JS_UNDEFINED;
-    S = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(S))
-        goto exception;
-
-    global = JS_ToBoolFree(ctx, JS_GetProperty(ctx, rx, JS_ATOM_global));
-    if (global < 0)
-        goto exception;
-
-    if (!global) {
-        A = JS_RegExpExec(ctx, rx, S);
-    } else {
-        fullUnicode = JS_ToBoolFree(ctx, JS_GetProperty(ctx, rx, JS_ATOM_unicode));
-        if (fullUnicode < 0)
-            goto exception;
-
-        if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, JS_NewInt32(ctx, 0)) < 0)
-            goto exception;
-        A = JS_NewArray(ctx);
-        if (JS_IsException(A))
-            goto exception;
-        n = 0;
-        for(;;) {
-            JS_FreeValue(ctx, result);
-            result = JS_RegExpExec(ctx, rx, S);
-            if (JS_IsException(result))
-                goto exception;
-            if (JS_IsNull(result))
-                break;
-            matchStr = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, result, 0));
-            if (JS_IsException(matchStr))
-                goto exception;
-            isEmpty = JS_IsEmptyString(matchStr);
-            if (JS_SetPropertyInt64(ctx, A, n++, matchStr) < 0)
-                goto exception;
-            if (isEmpty) {
-                int64_t thisIndex, nextIndex;
-                if (JS_ToLengthFree(ctx, &thisIndex,
-                                    JS_GetProperty(ctx, rx, JS_ATOM_lastIndex)) < 0)
-                    goto exception;
-                p = JS_VALUE_GET_STRING(S);
-                nextIndex = thisIndex + 1;
-                if (thisIndex < p->len)
-                    nextIndex = string_advance_index(p, thisIndex, fullUnicode);
-                if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, JS_NewInt64(ctx, nextIndex)) < 0)
-                    goto exception;
-            }
-        }
-        if (n == 0) {
-            JS_FreeValue(ctx, A);
-            A = JS_NULL;
-        }
-    }
-    JS_FreeValue(ctx, result);
-    JS_FreeValue(ctx, S);
-    return A;
-
-exception:
-    JS_FreeValue(ctx, A);
-    JS_FreeValue(ctx, result);
-    JS_FreeValue(ctx, S);
-    return JS_EXCEPTION;
-}
-
-typedef struct JSRegExpStringIteratorData {
-    JSValue iterating_regexp;
-    JSValue iterated_string;
-    BOOL global;
-    BOOL unicode;
-    BOOL done;
-} JSRegExpStringIteratorData;
-
-static void js_regexp_string_iterator_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSRegExpStringIteratorData *it = p->u.regexp_string_iterator_data;
-    if (it) {
-        JS_FreeValueRT(rt, it->iterating_regexp);
-        JS_FreeValueRT(rt, it->iterated_string);
-        js_free_rt(rt, it);
-    }
-}
-
-static void js_regexp_string_iterator_mark(JSRuntime *rt, JSValueConst val,
-                                           JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSRegExpStringIteratorData *it = p->u.regexp_string_iterator_data;
-    if (it) {
-        JS_MarkValue(rt, it->iterating_regexp, mark_func);
-        JS_MarkValue(rt, it->iterated_string, mark_func);
-    }
-}
-
-static JSValue js_regexp_string_iterator_next(JSContext *ctx,
-                                              JSValueConst this_val,
-                                              int argc, JSValueConst *argv,
-                                              BOOL *pdone, int magic)
-{
-    JSRegExpStringIteratorData *it;
-    JSValueConst R, S;
-    JSValue matchStr = JS_UNDEFINED, match = JS_UNDEFINED;
-    JSString *sp;
-
-    it = JS_GetOpaque2(ctx, this_val, JS_CLASS_REGEXP_STRING_ITERATOR);
-    if (!it)
-        goto exception;
-    if (it->done) {
-        *pdone = TRUE;
-        return JS_UNDEFINED;
-    }
-    R = it->iterating_regexp;
-    S = it->iterated_string;
-    match = JS_RegExpExec(ctx, R, S);
-    if (JS_IsException(match))
-        goto exception;
-    if (JS_IsNull(match)) {
-        it->done = TRUE;
-        *pdone = TRUE;
-        return JS_UNDEFINED;
-    } else if (it->global) {
-        matchStr = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, match, 0));
-        if (JS_IsException(matchStr))
-            goto exception;
-        if (JS_IsEmptyString(matchStr)) {
-            int64_t thisIndex, nextIndex;
-            if (JS_ToLengthFree(ctx, &thisIndex,
-                                JS_GetProperty(ctx, R, JS_ATOM_lastIndex)) < 0)
-                goto exception;
-            sp = JS_VALUE_GET_STRING(S);
-            nextIndex = string_advance_index(sp, thisIndex, it->unicode);
-            if (JS_SetProperty(ctx, R, JS_ATOM_lastIndex,
-                               JS_NewInt32(ctx, nextIndex)) < 0)
-                goto exception;
-        }
-        JS_FreeValue(ctx, matchStr);
-    } else {
-        it->done = TRUE;
-    }
-    *pdone = FALSE;
-    return match;
- exception:
-    JS_FreeValue(ctx, match);
-    JS_FreeValue(ctx, matchStr);
-    *pdone = FALSE;
-    return JS_EXCEPTION;
-}
-
-static JSValue js_regexp_Symbol_matchAll(JSContext *ctx, JSValueConst this_val,
-                                         int argc, JSValueConst *argv)
-{
-    // [Symbol.matchAll](str)
-    JSValueConst R = this_val;
-    JSValue S, C, flags, matcher, iter;
-    JSValueConst args[2];
-    JSString *strp;
-    int64_t lastIndex;
-    JSRegExpStringIteratorData *it;
-    
-    if (!JS_IsObject(R))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-
-    C = JS_UNDEFINED;
-    flags = JS_UNDEFINED;
-    matcher = JS_UNDEFINED;
-    iter = JS_UNDEFINED;
-    
-    S = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(S))
-        goto exception;
-    C = JS_SpeciesConstructor(ctx, R, ctx->regexp_ctor);
-    if (JS_IsException(C))
-        goto exception;
-    flags = JS_ToStringFree(ctx, JS_GetProperty(ctx, R, JS_ATOM_flags));
-    if (JS_IsException(flags))
-        goto exception;
-    args[0] = R;
-    args[1] = flags;
-    matcher = JS_CallConstructor(ctx, C, 2, args);
-    if (JS_IsException(matcher))
-        goto exception;
-    if (JS_ToLengthFree(ctx, &lastIndex,
-                        JS_GetProperty(ctx, R, JS_ATOM_lastIndex)))
-        goto exception;
-    if (JS_SetProperty(ctx, matcher, JS_ATOM_lastIndex,
-                       JS_NewInt32(ctx, lastIndex)) < 0)
-        goto exception;
-    
-    iter = JS_NewObjectClass(ctx, JS_CLASS_REGEXP_STRING_ITERATOR);
-    if (JS_IsException(iter))
-        goto exception;
-    it = js_malloc(ctx, sizeof(*it));
-    if (!it)
-        goto exception;
-    it->iterating_regexp = matcher;
-    it->iterated_string = S;
-    strp = JS_VALUE_GET_STRING(flags);
-    it->global = string_indexof_char(strp, 'g', 0) >= 0;
-    it->unicode = string_indexof_char(strp, 'u', 0) >= 0;
-    it->done = FALSE;
-    JS_SetOpaque(iter, it);
-
-    JS_FreeValue(ctx, C);
-    JS_FreeValue(ctx, flags);
-    return iter;
- exception:
-    JS_FreeValue(ctx, S);
-    JS_FreeValue(ctx, C);
-    JS_FreeValue(ctx, flags);
-    JS_FreeValue(ctx, matcher);
-    JS_FreeValue(ctx, iter);
-    return JS_EXCEPTION;
-}
-
-typedef struct ValueBuffer {
-    JSContext *ctx;
-    JSValue *arr;
-    JSValue def[4];
-    int len;
-    int size;
-    int error_status;
-} ValueBuffer;
-
-static int value_buffer_init(JSContext *ctx, ValueBuffer *b)
-{
-    b->ctx = ctx;
-    b->len = 0;
-    b->size = 4;
-    b->error_status = 0;
-    b->arr = b->def;
-    return 0;
-}
-
-static void value_buffer_free(ValueBuffer *b)
-{
-    while (b->len > 0)
-        JS_FreeValue(b->ctx, b->arr[--b->len]);
-    if (b->arr != b->def)
-        js_free(b->ctx, b->arr);
-    b->arr = b->def;
-    b->size = 4;
-}
-
-static int value_buffer_append(ValueBuffer *b, JSValue val)
-{
-    if (b->error_status)
-        return -1;
-
-    if (b->len >= b->size) {
-        int new_size = (b->len + (b->len >> 1) + 31) & ~16;
-        size_t slack;
-        JSValue *new_arr;
-
-        if (b->arr == b->def) {
-            new_arr = js_realloc2(b->ctx, NULL, sizeof(*b->arr) * new_size, &slack);
-            if (new_arr)
-                memcpy(new_arr, b->def, sizeof b->def);
-        } else {
-            new_arr = js_realloc2(b->ctx, b->arr, sizeof(*b->arr) * new_size, &slack);
-        }
-        if (!new_arr) {
-            value_buffer_free(b);
-            JS_FreeValue(b->ctx, val);
-            b->error_status = -1;
-            return -1;
-        }
-        new_size += slack / sizeof(*new_arr);
-        b->arr = new_arr;
-        b->size = new_size;
-    }
-    b->arr[b->len++] = val;
-    return 0;
-}
-
-static int js_is_standard_regexp(JSContext *ctx, JSValueConst rx)
-{
-    JSValue val;
-    int res;
-
-    val = JS_GetProperty(ctx, rx, JS_ATOM_constructor);
-    if (JS_IsException(val))
-        return -1;
-    // rx.constructor === RegExp
-    res = js_same_value(ctx, val, ctx->regexp_ctor);
-    JS_FreeValue(ctx, val);
-    if (res) {
-        val = JS_GetProperty(ctx, rx, JS_ATOM_exec);
-        if (JS_IsException(val))
-            return -1;
-        // rx.exec === RE_exec
-        res = JS_IsCFunction(ctx, val, js_regexp_exec, 0);
-        JS_FreeValue(ctx, val);
-    }
-    return res;
-}
-
-static JSValue js_regexp_Symbol_replace(JSContext *ctx, JSValueConst this_val,
-                                        int argc, JSValueConst *argv)
-{
-    // [Symbol.replace](str, rep)
-    JSValueConst rx = this_val, rep = argv[1];
-    JSValueConst args[6];
-    JSValue str, rep_val, matched, tab, rep_str, namedCaptures, res;
-    JSString *sp, *rp;
-    StringBuffer b_s, *b = &b_s;
-    ValueBuffer v_b, *results = &v_b;
-    int nextSourcePosition, n, j, functionalReplace, is_global, fullUnicode;
-    uint32_t nCaptures;
-    int64_t position;
-
-    if (!JS_IsObject(rx))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-
-    string_buffer_init(ctx, b, 0);
-    value_buffer_init(ctx, results);
-
-    rep_val = JS_UNDEFINED;
-    matched = JS_UNDEFINED;
-    tab = JS_UNDEFINED;
-    rep_str = JS_UNDEFINED;
-    namedCaptures = JS_UNDEFINED;
-
-    str = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(str))
-        goto exception;
-        
-    sp = JS_VALUE_GET_STRING(str);
-    rp = NULL;
-    functionalReplace = JS_IsFunction(ctx, rep);
-    if (!functionalReplace) {
-        rep_val = JS_ToString(ctx, rep);
-        if (JS_IsException(rep_val))
-            goto exception;
-        rp = JS_VALUE_GET_STRING(rep_val);
-    }
-    fullUnicode = 0;
-    is_global = JS_ToBoolFree(ctx, JS_GetProperty(ctx, rx, JS_ATOM_global));
-    if (is_global < 0)
-        goto exception;
-    if (is_global) {
-        fullUnicode = JS_ToBoolFree(ctx, JS_GetProperty(ctx, rx, JS_ATOM_unicode));
-        if (fullUnicode < 0)
-            goto exception;
-        if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, JS_NewInt32(ctx, 0)) < 0)
-            goto exception;
-    }
-
-    if (rp && rp->len == 0 && is_global && js_is_standard_regexp(ctx, rx)) {
-        /* use faster version for simple cases */
-        res = JS_RegExpDelete(ctx, rx, str);
-        goto done;
-    }
-    for(;;) {
-        JSValue result;
-        result = JS_RegExpExec(ctx, rx, str);
-        if (JS_IsException(result))
-            goto exception;
-        if (JS_IsNull(result))
-            break;
-        if (value_buffer_append(results, result) < 0)
-            goto exception;
-        if (!is_global)
-            break;
-        JS_FreeValue(ctx, matched);
-        matched = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, result, 0));
-        if (JS_IsException(matched))
-            goto exception;
-        if (JS_IsEmptyString(matched)) {
-            /* always advance of at least one char */
-            int64_t thisIndex, nextIndex;
-            if (JS_ToLengthFree(ctx, &thisIndex, JS_GetProperty(ctx, rx, JS_ATOM_lastIndex)) < 0)
-                goto exception;
-            nextIndex = string_advance_index(sp, thisIndex, fullUnicode);
-            if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, JS_NewInt32(ctx, nextIndex)) < 0)
-                goto exception;
-        }
-    }
-    nextSourcePosition = 0;
-    for(j = 0; j < results->len; j++) {
-        JSValueConst result;
-        result = results->arr[j];
-        if (js_get_length32(ctx, &nCaptures, result) < 0)
-            goto exception;
-        JS_FreeValue(ctx, matched);
-        matched = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, result, 0));
-        if (JS_IsException(matched))
-            goto exception;
-        if (JS_ToLengthFree(ctx, &position, JS_GetProperty(ctx, result, JS_ATOM_index)))
-            goto exception;
-        if (position > sp->len)
-            position = sp->len;
-        else if (position < 0)
-            position = 0;
-        /* ignore substition if going backward (can happen
-           with custom regexp object) */
-        JS_FreeValue(ctx, tab);
-        tab = JS_NewArray(ctx);
-        if (JS_IsException(tab))
-            goto exception;
-        if (JS_SetPropertyInt64(ctx, tab, 0, JS_DupValue(ctx, matched)) < 0)
-            goto exception;
-        for(n = 1; n < nCaptures; n++) {
-            JSValue capN;
-            capN = JS_GetPropertyInt64(ctx, result, n);
-            if (JS_IsException(capN))
-                goto exception;
-            if (!JS_IsUndefined(capN)) {
-                capN = JS_ToStringFree(ctx, capN);
-                if (JS_IsException(capN))
-                    goto exception;
-            }
-            if (JS_SetPropertyInt64(ctx, tab, n, capN) < 0)
-                goto exception;
-        }
-        JS_FreeValue(ctx, namedCaptures);
-        namedCaptures = JS_GetProperty(ctx, result, JS_ATOM_groups);
-        if (JS_IsException(namedCaptures))
-            goto exception;
-        if (functionalReplace) {
-            if (JS_SetPropertyInt64(ctx, tab, n++, JS_NewInt32(ctx, position)) < 0)
-                goto exception;
-            if (JS_SetPropertyInt64(ctx, tab, n++, JS_DupValue(ctx, str)) < 0)
-                goto exception;
-            if (!JS_IsUndefined(namedCaptures)) {
-                if (JS_SetPropertyInt64(ctx, tab, n++, JS_DupValue(ctx, namedCaptures)) < 0)
-                    goto exception;
-            }
-            args[0] = JS_UNDEFINED;
-            args[1] = tab;
-            JS_FreeValue(ctx, rep_str);
-            rep_str = JS_ToStringFree(ctx, js_function_apply(ctx, rep, 2, args, 0));
-        } else {
-            args[0] = matched;
-            args[1] = str;
-            args[2] = JS_NewInt32(ctx, position);
-            args[3] = tab;
-            args[4] = namedCaptures;
-            args[5] = rep_val;
-            JS_FreeValue(ctx, rep_str);
-            rep_str = js_string___GetSubstitution(ctx, JS_UNDEFINED, 6, args);
-        }
-        if (JS_IsException(rep_str))
-            goto exception;
-        if (position >= nextSourcePosition) {
-            string_buffer_concat(b, sp, nextSourcePosition, position);
-            string_buffer_concat_value(b, rep_str);
-            nextSourcePosition = position + JS_VALUE_GET_STRING(matched)->len;
-        }
-    }
-    string_buffer_concat(b, sp, nextSourcePosition, sp->len);
-    res = string_buffer_end(b);
-    goto done1;
-
-exception:
-    res = JS_EXCEPTION;
-done:
-    string_buffer_free(b);
-done1:
-    value_buffer_free(results);
-    JS_FreeValue(ctx, rep_val);
-    JS_FreeValue(ctx, matched);
-    JS_FreeValue(ctx, tab);
-    JS_FreeValue(ctx, rep_str);
-    JS_FreeValue(ctx, namedCaptures);
-    JS_FreeValue(ctx, str);
-    return res;
-}
-
-static JSValue js_regexp_Symbol_search(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    JSValueConst rx = this_val;
-    JSValue str, previousLastIndex, currentLastIndex, result, index;
-
-    if (!JS_IsObject(rx))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-
-    result = JS_UNDEFINED;
-    currentLastIndex = JS_UNDEFINED;
-    previousLastIndex = JS_UNDEFINED;
-    str = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(str))
-        goto exception;
-
-    previousLastIndex = JS_GetProperty(ctx, rx, JS_ATOM_lastIndex);
-    if (JS_IsException(previousLastIndex))
-        goto exception;
-
-    if (!js_same_value(ctx, previousLastIndex, JS_NewInt32(ctx, 0))) {
-        if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, JS_NewInt32(ctx, 0)) < 0) {
-            goto exception;
-        }
-    }
-    result = JS_RegExpExec(ctx, rx, str);
-    if (JS_IsException(result))
-        goto exception;
-    currentLastIndex = JS_GetProperty(ctx, rx, JS_ATOM_lastIndex);
-    if (JS_IsException(currentLastIndex))
-        goto exception;
-    if (js_same_value(ctx, currentLastIndex, previousLastIndex)) {
-        JS_FreeValue(ctx, previousLastIndex);
-    } else {
-        if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, previousLastIndex) < 0)
-            goto exception;
-    }
-    JS_FreeValue(ctx, str);
-    JS_FreeValue(ctx, currentLastIndex);
-
-    if (JS_IsNull(result)) {
-        return JS_NewInt32(ctx, -1);
-    } else {
-        index = JS_GetProperty(ctx, result, JS_ATOM_index);
-        JS_FreeValue(ctx, result);
-        return index;
-    }
-
-exception:
-    JS_FreeValue(ctx, result);
-    JS_FreeValue(ctx, str);
-    JS_FreeValue(ctx, currentLastIndex);
-    JS_FreeValue(ctx, previousLastIndex);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_regexp_Symbol_split(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    // [Symbol.split](str, limit)
-    JSValueConst rx = this_val;
-    JSValueConst args[2];
-    JSValue str, ctor, splitter, A, flags, z, sub;
-    JSString *strp;
-    uint32_t lim, size, p, q;
-    int unicodeMatching;
-    int64_t lengthA, e, numberOfCaptures, i;
-
-    if (!JS_IsObject(rx))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-
-    ctor = JS_UNDEFINED;
-    splitter = JS_UNDEFINED;
-    A = JS_UNDEFINED;
-    flags = JS_UNDEFINED;
-    z = JS_UNDEFINED;
-    str = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(str))
-        goto exception;
-    ctor = JS_SpeciesConstructor(ctx, rx, ctx->regexp_ctor);
-    if (JS_IsException(ctor))
-        goto exception;
-    flags = JS_ToStringFree(ctx, JS_GetProperty(ctx, rx, JS_ATOM_flags));
-    if (JS_IsException(flags))
-        goto exception;
-    strp = JS_VALUE_GET_STRING(flags);
-    unicodeMatching = string_indexof_char(strp, 'u', 0) >= 0;
-    if (string_indexof_char(strp, 'y', 0) < 0) {
-        flags = JS_ConcatString3(ctx, "", flags, "y");
-        if (JS_IsException(flags))
-            goto exception;
-    }
-    args[0] = rx;
-    args[1] = flags;
-    splitter = JS_CallConstructor(ctx, ctor, 2, args);
-    if (JS_IsException(splitter))
-        goto exception;
-    A = JS_NewArray(ctx);
-    if (JS_IsException(A))
-        goto exception;
-    lengthA = 0;
-    if (JS_IsUndefined(argv[1])) {
-        lim = 0xffffffff;
-    } else {
-        if (JS_ToUint32(ctx, &lim, argv[1]) < 0)
-            goto exception;
-        if (lim == 0)
-            goto done;
-    }
-    strp = JS_VALUE_GET_STRING(str);
-    p = q = 0;
-    size = strp->len;
-    if (size == 0) {
-        z = JS_RegExpExec(ctx, splitter, str);
-        if (JS_IsException(z))
-            goto exception;
-        if (JS_IsNull(z))
-            goto add_tail;
-        goto done;
-    }
-    while (q < size) {
-        if (JS_SetProperty(ctx, splitter, JS_ATOM_lastIndex, JS_NewInt32(ctx, q)) < 0)
-            goto exception;
-        JS_FreeValue(ctx, z);    
-        z = JS_RegExpExec(ctx, splitter, str);
-        if (JS_IsException(z))
-            goto exception;
-        if (JS_IsNull(z)) {
-            q = string_advance_index(strp, q, unicodeMatching);
-        } else {
-            if (JS_ToLengthFree(ctx, &e, JS_GetProperty(ctx, splitter, JS_ATOM_lastIndex)))
-                goto exception;
-            if (e > size)
-                e = size;
-            if (e == p) {
-                q = string_advance_index(strp, q, unicodeMatching);
-            } else {
-                sub = js_sub_string(ctx, strp, p, q);
-                if (JS_IsException(sub))
-                    goto exception;
-                if (JS_SetPropertyInt64(ctx, A, lengthA++, sub) < 0)
-                    goto exception;
-                if (lengthA == lim)
-                    goto done;
-                p = e;
-                if (js_get_length64(ctx, &numberOfCaptures, z))
-                    goto exception;
-                for(i = 1; i < numberOfCaptures; i++) {
-                    sub = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, z, i));
-                    if (JS_IsException(sub))
-                        goto exception;
-                    if (JS_SetPropertyInt64(ctx, A, lengthA++, sub) < 0)
-                        goto exception;
-                    if (lengthA == lim)
-                        goto done;
-                }
-                q = p;
-            }
-        }
-    }
-add_tail:
-    if (p > size)
-        p = size;
-    sub = js_sub_string(ctx, strp, p, size);
-    if (JS_IsException(sub))
-        goto exception;
-    if (JS_SetPropertyInt64(ctx, A, lengthA++, sub) < 0)
-        goto exception;
-    goto done;
-exception:
-    JS_FreeValue(ctx, A);
-    A = JS_EXCEPTION;
-done:
-    JS_FreeValue(ctx, str);
-    JS_FreeValue(ctx, ctor);
-    JS_FreeValue(ctx, splitter);
-    JS_FreeValue(ctx, flags);
-    JS_FreeValue(ctx, z);    
-    return A;
-}
-
-static const JSCFunctionListEntry js_regexp_funcs[] = {
-    JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
-    //JS_CFUNC_DEF("__RegExpExec", 2, js_regexp___RegExpExec ),
-    //JS_CFUNC_DEF("__RegExpDelete", 2, js_regexp___RegExpDelete ),
-};
-
-static const JSCFunctionListEntry js_regexp_proto_funcs[] = {
-    JS_CGETSET_DEF("flags", js_regexp_get_flags, NULL ),
-    JS_CGETSET_DEF("source", js_regexp_get_source, NULL ),
-    JS_CGETSET_MAGIC_DEF("global", js_regexp_get_flag, NULL, 1 ),
-    JS_CGETSET_MAGIC_DEF("ignoreCase", js_regexp_get_flag, NULL, 2 ),
-    JS_CGETSET_MAGIC_DEF("multiline", js_regexp_get_flag, NULL, 4 ),
-    JS_CGETSET_MAGIC_DEF("dotAll", js_regexp_get_flag, NULL, 8 ),
-    JS_CGETSET_MAGIC_DEF("unicode", js_regexp_get_flag, NULL, 16 ),
-    JS_CGETSET_MAGIC_DEF("sticky", js_regexp_get_flag, NULL, 32 ),
-    JS_CFUNC_DEF("exec", 1, js_regexp_exec ),
-    JS_CFUNC_DEF("compile", 2, js_regexp_compile ),
-    JS_CFUNC_DEF("test", 1, js_regexp_test ),
-    JS_CFUNC_DEF("toString", 0, js_regexp_toString ),
-    JS_CFUNC_DEF("[Symbol.replace]", 2, js_regexp_Symbol_replace ),
-    JS_CFUNC_DEF("[Symbol.match]", 1, js_regexp_Symbol_match ),
-    JS_CFUNC_DEF("[Symbol.matchAll]", 1, js_regexp_Symbol_matchAll ),
-    JS_CFUNC_DEF("[Symbol.search]", 1, js_regexp_Symbol_search ),
-    JS_CFUNC_DEF("[Symbol.split]", 2, js_regexp_Symbol_split ),
-    //JS_CGETSET_DEF("__source", js_regexp_get___source, NULL ),
-    //JS_CGETSET_DEF("__flags", js_regexp_get___flags, NULL ),
-};
-
-static const JSCFunctionListEntry js_regexp_string_iterator_proto_funcs[] = {
-    JS_ITERATOR_NEXT_DEF("next", 0, js_regexp_string_iterator_next, 0 ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "RegExp String Iterator", JS_PROP_CONFIGURABLE ),
-};
-
-void JS_AddIntrinsicRegExpCompiler(JSContext *ctx)
-{
-    ctx->compile_regexp = js_compile_regexp;
-}
-
-void JS_AddIntrinsicRegExp(JSContext *ctx)
-{
-    JSValueConst obj;
-
-    JS_AddIntrinsicRegExpCompiler(ctx);
-
-    ctx->class_proto[JS_CLASS_REGEXP] = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_REGEXP], js_regexp_proto_funcs,
-                               countof(js_regexp_proto_funcs));
-    obj = JS_NewGlobalCConstructor(ctx, "RegExp", js_regexp_constructor, 2,
-                                   ctx->class_proto[JS_CLASS_REGEXP]);
-    ctx->regexp_ctor = JS_DupValue(ctx, obj);
-    JS_SetPropertyFunctionList(ctx, obj, js_regexp_funcs, countof(js_regexp_funcs));
-
-    ctx->class_proto[JS_CLASS_REGEXP_STRING_ITERATOR] =
-        JS_NewObjectProto(ctx, ctx->iterator_proto);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_REGEXP_STRING_ITERATOR],
-                               js_regexp_string_iterator_proto_funcs,
-                               countof(js_regexp_string_iterator_proto_funcs));
-}
-
-/* JSON */
-
-/* XXX: this parser is less strict than the JSON standard because we
-   reuse the Javascript tokenizer. It could be improved by adding a
-   specific JSON parse flag. */
-static JSValue json_parse_value(JSParseState *s)
-{
-    JSContext *ctx = s->ctx;
-    JSValue val = JS_NULL;
-    BOOL is_neg;
-    int ret;
-
-    switch(s->token.val) {
-    case '{':
-        {
-            JSValue prop_val, prop_str;
-
-            if (next_token(s))
-                goto fail;
-            val = JS_NewObject(ctx);
-            if (JS_IsException(val))
-                goto fail;
-            if (s->token.val != '}') {
-                for(;;) {
-                    if (s->token.val != TOK_STRING) {
-                        js_parse_error(s, "expecting property name");
-                        goto fail;
-                    }
-                    prop_str = JS_DupValue(ctx, s->token.u.str.str);
-                    if (next_token(s)) {
-                        JS_FreeValue(ctx, prop_str);
-                        goto fail;
-                    }
-                    if (js_parse_expect(s, ':')) {
-                        JS_FreeValue(ctx, prop_str);
-                        goto fail;
-                    }
-                    prop_val = json_parse_value(s);
-                    if (JS_IsException(prop_val)) {
-                        JS_FreeValue(ctx, prop_str);
-                        goto fail;
-                    }
-                    ret = JS_DefinePropertyValueValue(ctx, val, prop_str,
-                                                      prop_val, JS_PROP_C_W_E);
-                    if (ret < 0)
-                        goto fail;
-
-                    if (s->token.val != ',')
-                        break;
-                    if (next_token(s))
-                        goto fail;
-                }
-            }
-            if (js_parse_expect(s, '}'))
-                goto fail;
-        }
-        break;
-    case '[':
-        {
-            JSValue el;
-            uint32_t idx;
-
-            if (next_token(s))
-                goto fail;
-            val = JS_NewArray(ctx);
-            if (JS_IsException(val))
-                goto fail;
-            if (s->token.val != ']') {
-                idx = 0;
-                for(;;) {
-                    el = json_parse_value(s);
-                    if (JS_IsException(el))
-                        goto fail;
-                    ret = JS_DefinePropertyValueUint32(ctx, val, idx, el, JS_PROP_C_W_E);
-                    if (ret < 0)
-                        goto fail;
-                    if (s->token.val != ',')
-                        break;
-                    if (next_token(s))
-                        goto fail;
-                    idx++;
-                }
-            }
-            if (js_parse_expect(s, ']'))
-                goto fail;
-        }
-        break;
-    case TOK_STRING:
-        val = JS_DupValue(ctx, s->token.u.str.str);
-        if (next_token(s))
-            goto fail;
-        break;
-    case TOK_NUMBER:
-        is_neg = 0;
-        goto number;
-    case '-':
-        if (next_token(s))
-            goto fail;
-        if (s->token.val != TOK_NUMBER) {
-            js_parse_error(s, "number expected");
-            goto fail;
-        }
-        is_neg = 1;
-    number:
-#ifdef CONFIG_BIGNUM
-        val = JS_DupValue(ctx, s->token.u.num.val);
-        if (is_neg) {
-            switch(JS_VALUE_GET_NORM_TAG(val)) {
-            case JS_TAG_BIG_INT:
-            case JS_TAG_BIG_FLOAT:
-                {
-                    JSBigFloat *p;
-                    p = JS_VALUE_GET_PTR(val);
-                    bf_neg(&p->num);
-                }
-                break;
-            case JS_TAG_FLOAT64:
-                {
-                    double d;
-                    d = JS_VALUE_GET_FLOAT64(val);
-                    val = __JS_NewFloat64(ctx, -d);
-                }
-                break;
-            default:
-            case JS_TAG_INT:
-                {
-                    int v;
-                    v = JS_VALUE_GET_INT(val);
-                    if (v == 0 && !is_bignum_mode(s->ctx))
-                        val = __JS_NewFloat64(ctx, -0.0);
-                    else
-                        val = JS_NewInt64(ctx, -(int64_t)v);
-                }
-                break;
-            }
-        }
-#else
-        val = s->token.u.num.val;
-        if (is_neg) {
-            double d;
-            JS_ToFloat64(ctx, &d, val);  /* no exception possible */
-            val = JS_NewFloat64(ctx, -d);
-        }
-#endif
-        if (next_token(s))
-            goto fail;
-        break;
-    case TOK_FALSE:
-    case TOK_TRUE:
-        val = JS_NewBool(ctx, s->token.val - TOK_FALSE);
-        if (next_token(s))
-            goto fail;
-        break;
-    case TOK_NULL:
-        if (next_token(s))
-            goto fail;
-        break;
-    default:
-        if (s->token.val == TOK_EOF) {
-            js_parse_error(s, "unexpected end of input");
-        } else {
-            js_parse_error(s, "unexpected token: '%.*s'",
-                           (int)(s->buf_ptr - s->token.ptr), s->token.ptr);
-        }
-        goto fail;
-    }
-    return val;
- fail:
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-}
-
-JSValue JS_ParseJSON(JSContext *ctx, const char *buf, size_t buf_len,
-                     const char *filename)
-{
-    JSParseState s1, *s = &s1;
-    JSValue val;
-
-    js_parse_init(ctx, s, buf, buf_len, filename);
-
-    if (next_token(s))
-        goto fail;
-    val = json_parse_value(s);
-    if (JS_IsException(val))
-        goto fail;
-    if (s->token.val != TOK_EOF) {
-        if (js_parse_error(s, "unexpected data at the end"))
-            goto fail;
-    }
-    return val;
- fail:
-    free_token(s, &s->token);
-    return JS_EXCEPTION;
-}
-
-static JSValue internalize_json_property(JSContext *ctx, JSValueConst holder,
-                                         JSAtom name, JSValueConst reviver)
-{
-    JSValue val, new_el, name_val, res;
-    JSValueConst args[2];
-    int ret, is_array;
-    uint32_t i, len = 0;
-    JSAtom prop;
-    JSPropertyEnum *atoms = NULL;
-
-    if (js_check_stack_overflow(ctx, 0)) {
-        return JS_ThrowStackOverflow(ctx);
-    }
-
-    val = JS_GetProperty(ctx, holder, name);
-    if (JS_IsException(val))
-        return val;
-    if (JS_IsObject(val)) {
-        is_array = JS_IsArray(ctx, val);
-        if (is_array < 0)
-            goto fail;
-        if (is_array) {
-            if (js_get_length32(ctx, &len, val))
-                goto fail;
-        } else {
-            ret = JS_GetOwnPropertyNamesInternal(ctx, &atoms, &len, JS_VALUE_GET_OBJ(val), JS_GPN_ENUM_ONLY | JS_GPN_STRING_MASK);
-            if (ret < 0)
-                goto fail;
-        }
-        for(i = 0; i < len; i++) {
-            if (is_array) {
-                prop = JS_NewAtomUInt32(ctx, i);
-                if (prop == JS_ATOM_NULL)
-                    goto fail;
-            } else {
-                prop = JS_DupAtom(ctx, atoms[i].atom);
-            }
-            new_el = internalize_json_property(ctx, val, prop, reviver);
-            if (JS_IsException(new_el)) {
-                JS_FreeAtom(ctx, prop);
-                goto fail;
-            }
-            if (JS_IsUndefined(new_el)) {
-                ret = JS_DeleteProperty(ctx, val, prop, 0);
-            } else {
-                ret = JS_DefinePropertyValue(ctx, val, prop, new_el, JS_PROP_C_W_E);
-            }
-            JS_FreeAtom(ctx, prop);
-            if (ret < 0)
-                goto fail;
-        }
-    }
-    js_free_prop_enum(ctx, atoms, len);
-    atoms = NULL;
-    name_val = JS_AtomToValue(ctx, name);
-    if (JS_IsException(name_val))
-        goto fail;
-    args[0] = name_val;
-    args[1] = val;
-    res = JS_Call(ctx, reviver, holder, 2, args);
-    JS_FreeValue(ctx, name_val);
-    JS_FreeValue(ctx, val);
-    return res;
- fail:
-    js_free_prop_enum(ctx, atoms, len);
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_json_parse(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    JSValue obj, root;
-    JSValueConst reviver;
-    const char *str;
-    size_t len;
-
-    str = JS_ToCStringLen(ctx, &len, argv[0]);
-    if (!str)
-        return JS_EXCEPTION;
-    obj = JS_ParseJSON(ctx, str, len, "<input>");
-    JS_FreeCString(ctx, str);
-    if (JS_IsException(obj))
-        return obj;
-    if (argc > 1 && JS_IsFunction(ctx, argv[1])) {
-        reviver = argv[1];
-        root = JS_NewObject(ctx);
-        if (JS_IsException(root)) {
-            JS_FreeValue(ctx, obj);
-            return JS_EXCEPTION;
-        }
-        if (JS_DefinePropertyValue(ctx, root, JS_ATOM_empty_string, obj,
-                                   JS_PROP_C_W_E) < 0) {
-            JS_FreeValue(ctx, root);
-            return JS_EXCEPTION;
-        }
-        obj = internalize_json_property(ctx, root, JS_ATOM_empty_string,
-                                        reviver);
-        JS_FreeValue(ctx, root);
-    }
-    return obj;
-}
-
-typedef struct JSONStringifyContext {
-    JSValueConst replacer_func;
-    JSValue stack;
-    JSValue property_list;
-    JSValue gap;
-    JSValue empty;
-    StringBuffer *b;
-} JSONStringifyContext;
-
-static JSValue JS_ToQuotedStringFree(JSContext *ctx, JSValue val) {
-    JSValue r = JS_ToQuotedString(ctx, val);
-    JS_FreeValue(ctx, val);
-    return r;
-}
-
-static JSValue js_json_unbox(JSContext *ctx, JSValue val) {
-    if (JS_IsObject(val)) {
-        JSObject *p = JS_VALUE_GET_OBJ(val);
-        if (p->class_id == JS_CLASS_STRING || p->class_id == JS_CLASS_NUMBER) {
-            JSValue r = JS_DupValue(ctx, p->u.object_data);
-            JS_FreeValue(ctx, val);
-            val = r;
-        }
-    }
-    return val;
-}
-
-#ifdef CONFIG_BIGNUM
-static inline BOOL JS_IsBigInt(JSContext *ctx, JSValueConst v);
-#endif
-
-static JSValue js_json_check(JSContext *ctx, JSONStringifyContext *jsc,
-                             JSValueConst holder, JSValue val, JSValueConst key)
-{
-    JSValue v;
-    JSValueConst args[2];
-
-    if (JS_IsObject(val)
-#ifdef CONFIG_BIGNUM
-    ||  JS_IsBigInt(ctx, val)   /* XXX: probably useless */
-#endif
-        ) {
-            JSValue f = JS_GetProperty(ctx, val, JS_ATOM_toJSON);
-            if (JS_IsException(f))
-                goto exception;
-            if (JS_IsFunction(ctx, f)) {
-                v = JS_CallFree(ctx, f, val, 1, &key);
-                JS_FreeValue(ctx, val);
-                val = v;
-                if (JS_IsException(val))
-                    goto exception;
-            } else {
-                JS_FreeValue(ctx, f);
-            }
-        }
-
-    if (!JS_IsUndefined(jsc->replacer_func)) {
-        args[0] = key;
-        args[1] = val;
-        v = JS_Call(ctx, jsc->replacer_func, holder, 2, args);
-        JS_FreeValue(ctx, val);
-        val = v;
-        if (JS_IsException(val))
-            goto exception;
-    }
-
-    switch (JS_VALUE_GET_NORM_TAG(val)) {
-    case JS_TAG_OBJECT:
-        if (JS_IsFunction(ctx, val))
-            break;
-    case JS_TAG_STRING:
-    case JS_TAG_INT:
-    case JS_TAG_FLOAT64:
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_FLOAT:
-#endif
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-#endif
-    case JS_TAG_EXCEPTION:
-        return val;
-    default:
-        break;
-    }
-    JS_FreeValue(ctx, val);
-    return JS_UNDEFINED;
-
-exception:
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-}
-
-static int js_json_to_str(JSContext *ctx, JSONStringifyContext *jsc,
-                          JSValueConst holder, JSValue val,
-                          JSValueConst key, JSValueConst indent)
-{
-    JSValue indent1, sep, sep1, tab, v, prop;
-    JSObject *p;
-    int64_t i, len;
-    int cl, res;
-
-    indent1 = JS_UNDEFINED;
-    sep = JS_UNDEFINED;
-    sep1 = JS_UNDEFINED;
-    tab = JS_UNDEFINED;
-    prop = JS_UNDEFINED;
-
-    switch (JS_VALUE_GET_NORM_TAG(val)) {
-    case JS_TAG_OBJECT:
-        p = JS_VALUE_GET_OBJ(val);
-        cl = p->class_id;
-        if (cl == JS_CLASS_STRING) {
-            val = JS_InvokeFree(ctx, val, JS_ATOM_toString, 0, NULL);
-            if (JS_IsException(val))
-                goto exception;
-            val = JS_ToQuotedStringFree(ctx, val);
-            if (JS_IsException(val))
-                goto exception;
-            return string_buffer_concat_value_free(jsc->b, val);
-        } else if (cl == JS_CLASS_NUMBER || cl == JS_CLASS_BOOLEAN) {
-            return string_buffer_concat_value_free(jsc->b, val);
-        }
-#ifdef CONFIG_BIGNUM
-        else if (cl == JS_CLASS_BIG_FLOAT) {
-            return string_buffer_concat_value_free(jsc->b, val);
-        } else if (cl == JS_CLASS_BIG_INT) {
-            JS_ThrowTypeError(ctx, "bigint are forbidden in JSON.stringify");
-            goto exception;
-        }
-#endif
-        res = JS_ToBoolFree(ctx, js_array_includes(ctx, jsc->stack, 1, (JSValueConst *)&val));
-        if (res < 0)
-            goto exception;
-        if (res) {
-            JS_ThrowTypeError(ctx, "circular reference");
-            goto exception;
-        }
-        indent1 = JS_ConcatString(ctx, JS_DupValue(ctx, indent), JS_DupValue(ctx, jsc->gap));
-        if (JS_IsException(indent1))
-            goto exception;
-        if (!JS_IsEmptyString(jsc->gap)) {
-            sep = JS_ConcatString3(ctx, "\n", JS_DupValue(ctx, indent), "");
-            if (JS_IsException(sep))
-                goto exception;
-            sep1 = JS_NewString(ctx, " ");
-            if (JS_IsException(sep1))
-                goto exception;
-        } else {
-            sep = JS_DupValue(ctx, jsc->empty);
-            sep1 = JS_DupValue(ctx, jsc->empty);
-        }
-        v = js_array_push(ctx, jsc->stack, 1, (JSValueConst *)&val, 0);
-        if (check_exception_free(ctx, v))
-            goto exception;
-        if (JS_IsArray(ctx, val)) {
-            if (js_get_length64(ctx, &len, val))
-                goto exception;
-            string_buffer_putc8(jsc->b, '[');
-            for(i = 0; i < len; i++) {
-                if (i > 0)
-                    string_buffer_putc8(jsc->b, ',');
-                string_buffer_concat_value(jsc->b, sep);
-                v = JS_GetPropertyInt64(ctx, val, i);
-                if (JS_IsException(v))
-                    goto exception;
-                v = js_json_check(ctx, jsc, val, v, JS_NewInt32(ctx, i));
-                if (JS_IsException(v))
-                    goto exception;
-                if (JS_IsUndefined(v))
-                    v = JS_NULL;
-                if (js_json_to_str(ctx, jsc, val, v, JS_NewInt32(ctx, i), indent1))
-                    goto exception;
-            }
-            if (len > 0 && !JS_IsEmptyString(jsc->gap)) {
-                string_buffer_putc8(jsc->b, '\n');
-                string_buffer_concat_value(jsc->b, indent);
-            }
-            string_buffer_putc8(jsc->b, ']');
-        } else {
-            if (!JS_IsUndefined(jsc->property_list))
-                tab = JS_DupValue(ctx, jsc->property_list);
-            else
-                tab = js_object_keys(ctx, JS_UNDEFINED, 1, (JSValueConst *)&val, JS_ITERATOR_KIND_KEY);
-            if (JS_IsException(tab))
-                goto exception;
-            if (js_get_length64(ctx, &len, tab))
-                goto exception;
-            string_buffer_putc8(jsc->b, '{');
-            for(i = 0; i < len; i++) {
-                JS_FreeValue(ctx, prop);
-                prop = JS_GetPropertyInt64(ctx, tab, i);
-                if (JS_IsException(prop))
-                    goto exception;
-                v = JS_GetPropertyValue(ctx, val, JS_DupValue(ctx, prop));
-                if (JS_IsException(v))
-                    goto exception;
-                v = js_json_check(ctx, jsc, val, v, prop);
-                if (JS_IsException(v))
-                    goto exception;
-                if (!JS_IsUndefined(v)) {
-                    if (i > 0)
-                        string_buffer_putc8(jsc->b, ',');
-                    prop = JS_ToQuotedStringFree(ctx, prop);
-                    if (JS_IsException(prop)) {
-                        JS_FreeValue(ctx, v);
-                        goto exception;
-                    }
-                    string_buffer_concat_value(jsc->b, sep);
-                    string_buffer_concat_value(jsc->b, prop);
-                    string_buffer_putc8(jsc->b, ':');
-                    string_buffer_concat_value(jsc->b, sep1);
-                    if (js_json_to_str(ctx, jsc, val, v, prop, indent1))
-                        goto exception;
-                }
-            }
-            if (len > 0 && JS_VALUE_GET_STRING(jsc->gap)->len != 0) {
-                string_buffer_putc8(jsc->b, '\n');
-                string_buffer_concat_value(jsc->b, indent);
-            }
-            string_buffer_putc8(jsc->b, '}');
-        }
-        if (check_exception_free(ctx, js_array_pop(ctx, jsc->stack, 0, NULL, 0)))
-            goto exception;
-        JS_FreeValue(ctx, val);
-        JS_FreeValue(ctx, tab);
-        JS_FreeValue(ctx, sep);
-        JS_FreeValue(ctx, sep1);
-        JS_FreeValue(ctx, indent1);
-        JS_FreeValue(ctx, prop);
-        return 0;
-    case JS_TAG_STRING:
-        val = JS_ToQuotedStringFree(ctx, val);
-        if (JS_IsException(val))
-            goto exception;
-        /* fall thru */
-    case JS_TAG_INT:
-    case JS_TAG_FLOAT64:
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_FLOAT:
-#endif
-    case JS_TAG_BOOL:
-    case JS_TAG_NULL:
-        return string_buffer_concat_value_free(jsc->b, val);
-#ifdef CONFIG_BIGNUM
-    case JS_TAG_BIG_INT:
-        JS_ThrowTypeError(ctx, "bigint are forbidden in JSON.stringify");
-        goto exception;
-#endif
-    default:
-        JS_FreeValue(ctx, val);
-        return 0;
-    }
-    
-exception:
-    JS_FreeValue(ctx, val);
-    JS_FreeValue(ctx, tab);
-    JS_FreeValue(ctx, sep);
-    JS_FreeValue(ctx, sep1);
-    JS_FreeValue(ctx, indent1);
-    JS_FreeValue(ctx, prop);
-    return -1;
-}
-
-static JSValue js_json_stringify(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    // stringify(val, replacer, space)
-    StringBuffer b_s;
-    JSONStringifyContext jsc_s, *jsc = &jsc_s;
-    JSValueConst replacer = argv[1];
-    JSValue val, v, space, ret;
-    int res;
-    int64_t i, j, n;
-
-    jsc->replacer_func = JS_UNDEFINED;
-    jsc->stack = JS_UNDEFINED;
-    jsc->property_list = JS_UNDEFINED;
-    jsc->gap = JS_UNDEFINED;
-    jsc->b = &b_s;
-    jsc->empty = JS_AtomToString(ctx, JS_ATOM_empty_string);
-    ret = JS_UNDEFINED;
-
-    string_buffer_init(ctx, jsc->b, 0);
-    jsc->stack = JS_NewArray(ctx);
-    if (JS_IsException(jsc->stack))
-        goto exception;
-    if (JS_IsFunction(ctx, replacer)) {
-        jsc->replacer_func = replacer;
-    } else {
-        res = JS_IsArray(ctx, replacer);
-        if (res < 0)
-            goto exception;
-        if (res) {
-            /* XXX: enumeration is not fully correct */
-            jsc->property_list = JS_NewArray(ctx);
-            if (JS_IsException(jsc->property_list))
-                goto exception;
-            if (js_get_length64(ctx, &n, replacer))
-                goto exception;
-            for (i = j = 0; i < n; i++) {
-                v = JS_GetPropertyInt64(ctx, replacer, i);
-                if (JS_IsException(v))
-                    goto exception;
-                v = js_json_unbox(ctx, v);
-                if (JS_IsNumber(v)) {
-                    v = JS_ToStringFree(ctx, v);
-                } else if (!JS_IsString(v)) {
-                    JS_FreeValue(ctx, v);
-                    continue;
-                }
-                JS_SetPropertyInt64(ctx, jsc->property_list, j++, v);
-            }
-        }
-    }
-    space = js_json_unbox(ctx, JS_DupValue(ctx, argv[2]));
-    if (JS_IsNumber(space)) {
-        int n;
-        if (JS_ToInt32Clamp(ctx, &n, space, 0, 10, 0))
-            goto exception;
-        jsc->gap = JS_NewStringLen(ctx, "          ", n);
-    } else if (JS_IsString(space)) {
-        JSString *p = JS_VALUE_GET_STRING(space);
-        jsc->gap = js_sub_string(ctx, p, 0, min_int(p->len, 10));
-    } else {
-        jsc->gap = JS_DupValue(ctx, jsc->empty);
-    }
-    JS_FreeValue(ctx, space);
-    if (JS_IsException(jsc->gap))
-        goto exception;
-    val = JS_DupValue(ctx, argv[0]);
-    val = js_json_check(ctx, jsc, JS_NULL, val, jsc->empty);
-    if (JS_IsException(val))
-        goto exception;
-    if (JS_IsUndefined(val)) {
-        ret = JS_UNDEFINED;
-        goto done1;
-    }
-    if (js_json_to_str(ctx, jsc, JS_NULL, val, jsc->empty, jsc->empty))
-        goto exception;
-
-    ret = string_buffer_end(jsc->b);
-    goto done;
-
-exception:
-    ret = JS_EXCEPTION;
-done1:
-    string_buffer_free(jsc->b);
-done:
-    JS_FreeValue(ctx, jsc->empty);
-    JS_FreeValue(ctx, jsc->gap);
-    JS_FreeValue(ctx, jsc->property_list);
-    JS_FreeValue(ctx, jsc->stack);
-    return ret;
-}
-
-static const JSCFunctionListEntry js_json_funcs[] = {
-    JS_CFUNC_DEF("parse", 2, js_json_parse ),
-    JS_CFUNC_DEF("stringify", 3, js_json_stringify ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "JSON", JS_PROP_CONFIGURABLE ),
-};
-
-static const JSCFunctionListEntry js_json_obj[] = {
-    JS_OBJECT_DEF("JSON", js_json_funcs, countof(js_json_funcs), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
-};
-
-void JS_AddIntrinsicJSON(JSContext *ctx)
-{
-    /* add JSON as autoinit object */
-    JS_SetPropertyFunctionList(ctx, ctx->global_obj, js_json_obj, countof(js_json_obj));
-}
-
-/* Reflect */
-
-static JSValue js_reflect_apply(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    return js_function_apply(ctx, argv[0], max_int(0, argc - 1), argv + 1, 0);
-}
-
-static JSValue js_reflect_construct(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    JSValueConst func, array_arg, new_target;
-    JSValue *tab, ret;
-    uint32_t len;
-
-    func = argv[0];
-    array_arg = argv[1];
-    if (argc > 2) {
-        new_target = argv[2];
-        if (!JS_IsConstructor(ctx, new_target))
-            return JS_ThrowTypeError(ctx, "not a constructor");
-    } else {
-        new_target = func;
-    }
-    tab = build_arg_list(ctx, &len, array_arg);
-    if (!tab)
-        return JS_EXCEPTION;
-    ret = JS_CallConstructor2(ctx, func, new_target, len, (JSValueConst *)tab);
-    free_arg_list(ctx, tab, len);
-    return ret;
-}
-
-static JSValue js_reflect_deleteProperty(JSContext *ctx, JSValueConst this_val,
-                                         int argc, JSValueConst *argv)
-{
-    JSValueConst obj;
-    JSAtom atom;
-    int ret;
-
-    obj = argv[0];
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    atom = js_value_to_atom(ctx, argv[1]);
-    if (unlikely(atom == JS_ATOM_NULL))
-        return JS_EXCEPTION;
-    ret = JS_DeleteProperty(ctx, obj, atom, 0);
-    JS_FreeAtom(ctx, atom);
-    if (ret < 0)
-        return JS_EXCEPTION;
-    else
-        return JS_NewBool(ctx, ret);
-}
-
-static JSValue js_reflect_get(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv)
-{
-    JSValueConst obj, prop, receiver;
-    JSAtom atom;
-    JSValue ret;
-
-    obj = argv[0];
-    prop = argv[1];
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    if (argc > 2)
-        receiver = argv[2];
-    else
-        receiver = obj;
-    atom = js_value_to_atom(ctx, prop);
-    if (unlikely(atom == JS_ATOM_NULL))
-        return JS_EXCEPTION;
-    ret = JS_GetPropertyInternal(ctx, obj, atom, receiver, FALSE);
-    JS_FreeAtom(ctx, atom);
-    return ret;
-}
-
-static JSValue js_reflect_has(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv)
-{
-    JSValueConst obj, prop;
-    JSAtom atom;
-    int ret;
-
-    obj = argv[0];
-    prop = argv[1];
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    atom = js_value_to_atom(ctx, prop);
-    if (unlikely(atom == JS_ATOM_NULL))
-        return JS_EXCEPTION;
-    ret = JS_HasProperty(ctx, obj, atom);
-    JS_FreeAtom(ctx, atom);
-    if (ret < 0)
-        return JS_EXCEPTION;
-    else
-        return JS_NewBool(ctx, ret);
-}
-
-static JSValue js_reflect_set(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv)
-{
-    JSValueConst obj, prop, val, receiver;
-    int ret;
-    JSAtom atom;
-
-    obj = argv[0];
-    prop = argv[1];
-    val = argv[2];
-    if (argc > 3)
-        receiver = argv[3];
-    else
-        receiver = obj;
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    atom = js_value_to_atom(ctx, prop);
-    if (unlikely(atom == JS_ATOM_NULL))
-        return JS_EXCEPTION;
-    ret = JS_SetPropertyGeneric(ctx, JS_VALUE_GET_OBJ(obj), atom,
-                                JS_DupValue(ctx, val), receiver, 0);
-    JS_FreeAtom(ctx, atom);
-    if (ret < 0)
-        return JS_EXCEPTION;
-    else
-        return JS_NewBool(ctx, ret);
-}
-
-static JSValue js_reflect_setPrototypeOf(JSContext *ctx, JSValueConst this_val,
-                                         int argc, JSValueConst *argv)
-{
-    int ret;
-    ret = JS_SetPrototypeInternal(ctx, argv[0], argv[1], FALSE);
-    if (ret < 0)
-        return JS_EXCEPTION;
-    else
-        return JS_NewBool(ctx, ret);
-}
-
-static JSValue js_reflect_ownKeys(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    if (JS_VALUE_GET_TAG(argv[0]) != JS_TAG_OBJECT)
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    return JS_GetOwnPropertyNames2(ctx, argv[0],
-                                   JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK,
-                                   JS_ITERATOR_KIND_KEY);
-}
-
-static const JSCFunctionListEntry js_reflect_funcs[] = {
-    JS_CFUNC_DEF("apply", 3, js_reflect_apply ),
-    JS_CFUNC_DEF("construct", 2, js_reflect_construct ),
-    JS_CFUNC_MAGIC_DEF("defineProperty", 3, js_object_defineProperty, 1 ),
-    JS_CFUNC_DEF("deleteProperty", 2, js_reflect_deleteProperty ),
-    JS_CFUNC_DEF("get", 2, js_reflect_get ),
-    JS_CFUNC_MAGIC_DEF("getOwnPropertyDescriptor", 2, js_object_getOwnPropertyDescriptor, 1 ),
-    JS_CFUNC_MAGIC_DEF("getPrototypeOf", 1, js_object_getPrototypeOf, 1 ),
-    JS_CFUNC_DEF("has", 2, js_reflect_has ),
-    JS_CFUNC_MAGIC_DEF("isExtensible", 1, js_object_isExtensible, 1 ),
-    JS_CFUNC_DEF("ownKeys", 1, js_reflect_ownKeys ),
-    JS_CFUNC_MAGIC_DEF("preventExtensions", 1, js_object_preventExtensions, 1 ),
-    JS_CFUNC_DEF("set", 3, js_reflect_set ),
-    JS_CFUNC_DEF("setPrototypeOf", 2, js_reflect_setPrototypeOf ),
-};
-
-static const JSCFunctionListEntry js_reflect_obj[] = {
-    JS_OBJECT_DEF("Reflect", js_reflect_funcs, countof(js_reflect_funcs), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
-};
-
-/* Proxy */
-
-static void js_proxy_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSProxyData *s = JS_GetOpaque(val, JS_CLASS_PROXY);
-    if (s) {
-        JS_FreeValueRT(rt, s->target);
-        JS_FreeValueRT(rt, s->handler);
-        JS_FreeValueRT(rt, s->proto);
-        js_free_rt(rt, s);
-    }
-}
-
-static void js_proxy_mark(JSRuntime *rt, JSValueConst val,
-                          JS_MarkFunc *mark_func)
-{
-    JSProxyData *s = JS_GetOpaque(val, JS_CLASS_PROXY);
-    if (s) {
-        JS_MarkValue(rt, s->target, mark_func);
-        JS_MarkValue(rt, s->handler, mark_func);
-        JS_MarkValue(rt, s->proto, mark_func);
-    }
-}
-
-static JSValue JS_ThrowTypeErrorRevokedProxy(JSContext *ctx)
-{
-    return JS_ThrowTypeError(ctx, "revoked proxy");
-}
-
-static JSProxyData *get_proxy_method(JSContext *ctx, JSValue *pmethod,
-                                     JSValueConst obj, JSAtom name)
-{
-    JSProxyData *s = JS_GetOpaque(obj, JS_CLASS_PROXY);
-    JSValue method;
-
-    /* safer to test recursion in all proxy methods */
-    if (js_check_stack_overflow(ctx, 0)) {
-        JS_ThrowStackOverflow(ctx);
-        return NULL;
-    }
-    
-    /* 's' should never be NULL */
-    if (s->is_revoked) {
-        JS_ThrowTypeErrorRevokedProxy(ctx);
-        return NULL;
-    }
-    method = JS_GetProperty(ctx, s->handler, name);
-    if (JS_IsException(method))
-        return NULL;
-    if (JS_IsNull(method))
-        method = JS_UNDEFINED;
-    *pmethod = method;
-    return s;
-}
-
-static JSValueConst js_proxy_getPrototypeOf(JSContext *ctx, JSValueConst obj)
-{
-    JSProxyData *s;
-    JSValue method, ret;
-    JSValueConst proto1;
-    int res;
-
-    /* must check for timeout to avoid infinite loop in instanceof */
-    if (js_poll_interrupts(ctx))
-        return JS_EXCEPTION;
-
-    s = get_proxy_method(ctx, &method, obj, JS_ATOM_getPrototypeOf);
-    if (!s)
-        return JS_EXCEPTION;
-    if (JS_IsUndefined(method))
-        return JS_GetPrototype(ctx, s->target);
-    ret = JS_CallFree(ctx, method, s->handler, 1, (JSValueConst *)&s->target);
-    if (JS_IsException(ret))
-        return ret;
-    if (JS_VALUE_GET_TAG(ret) != JS_TAG_NULL &&
-        JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT) {
-        goto fail;
-    }
-    res = JS_IsExtensible(ctx, s->target);
-    if (res < 0) {
-        JS_FreeValue(ctx, ret);
-        return JS_EXCEPTION;
-    }
-    if (!res) {
-        /* check invariant */
-        proto1 = JS_GetPrototype(ctx, s->target);
-        if (JS_IsException(proto1)) {
-            JS_FreeValue(ctx, ret);
-            return JS_EXCEPTION;
-        }
-        if (JS_VALUE_GET_OBJ(proto1) != JS_VALUE_GET_OBJ(ret)) {
-        fail:
-            JS_FreeValue(ctx, ret);
-            return JS_ThrowTypeError(ctx, "proxy: inconsistent prototype");
-        }
-    }
-    /* store the prototype in the proxy so that its refcount is at least 1 */
-    set_value(ctx, &s->proto, ret);
-    return (JSValueConst)ret;
-}
-
-static int js_proxy_setPrototypeOf(JSContext *ctx, JSValueConst obj,
-                                   JSValueConst proto_val, BOOL throw_flag)
-{
-    JSProxyData *s;
-    JSValue method, ret;
-    JSValueConst args[2], proto1;
-    BOOL res;
-    int res2;
-
-    s = get_proxy_method(ctx, &method, obj, JS_ATOM_setPrototypeOf);
-    if (!s)
-        return -1;
-    if (JS_IsUndefined(method))
-        return JS_SetPrototypeInternal(ctx, s->target, proto_val, throw_flag);
-    args[0] = s->target;
-    args[1] = proto_val;
-    ret = JS_CallFree(ctx, method, s->handler, 2, args);
-    if (JS_IsException(ret))
-        return -1;
-    res = JS_ToBoolFree(ctx, ret);
-    if (!res) {
-        if (throw_flag) {
-            JS_ThrowTypeError(ctx, "proxy: bad prototype");
-            return -1;
-        } else {
-            return FALSE;
-        }
-    }
-    res2 = JS_IsExtensible(ctx, s->target);
-    if (res2 < 0)
-        return -1;
-    if (!res2) {
-        proto1 = JS_GetPrototype(ctx, s->target);
-        if (JS_IsException(proto1))
-            return -1;
-        if (JS_VALUE_GET_OBJ(proto_val) != JS_VALUE_GET_OBJ(proto1)) {
-            JS_ThrowTypeError(ctx, "proxy: inconsistent prototype");
-            return -1;
-        }
-    }
-    return TRUE;
-}
-
-static int js_proxy_isExtensible(JSContext *ctx, JSValueConst obj)
-{
-    JSProxyData *s;
-    JSValue method, ret;
-    BOOL res;
-    int res2;
-
-    s = get_proxy_method(ctx, &method, obj, JS_ATOM_isExtensible);
-    if (!s)
-        return -1;
-    if (JS_IsUndefined(method))
-        return JS_IsExtensible(ctx, s->target);
-    ret = JS_CallFree(ctx, method, s->handler, 1, (JSValueConst *)&s->target);
-    if (JS_IsException(ret))
-        return -1;
-    res = JS_ToBoolFree(ctx, ret);
-    res2 = JS_IsExtensible(ctx, s->target);
-    if (res2 < 0)
-        return res2;
-    if (res != res2) {
-        JS_ThrowTypeError(ctx, "proxy: inconsistent isExtensible");
-        return -1;
-    }
-    return res;
-}
-
-static int js_proxy_preventExtensions(JSContext *ctx, JSValueConst obj)
-{
-    JSProxyData *s;
-    JSValue method, ret;
-    BOOL res;
-    int res2;
-
-    s = get_proxy_method(ctx, &method, obj, JS_ATOM_preventExtensions);
-    if (!s)
-        return -1;
-    if (JS_IsUndefined(method))
-        return JS_PreventExtensions(ctx, s->target);
-    ret = JS_CallFree(ctx, method, s->handler, 1, (JSValueConst *)&s->target);
-    if (JS_IsException(ret))
-        return -1;
-    res = JS_ToBoolFree(ctx, ret);
-    if (res) {
-        res2 = JS_IsExtensible(ctx, s->target);
-        if (res2 < 0)
-            return res2;
-        if (res2) {
-            JS_ThrowTypeError(ctx, "proxy: inconsistent preventExtensions");
-            return -1;
-        }
-    }
-    return res;
-}
-
-static int js_proxy_has(JSContext *ctx, JSValueConst obj, JSAtom atom)
-{
-    JSProxyData *s;
-    JSValue method, ret1, atom_val;
-    int ret, res;
-    JSObject *p;
-    JSValueConst args[2];
-    BOOL res2;
-
-    s = get_proxy_method(ctx, &method, obj, JS_ATOM_has);
-    if (!s)
-        return -1;
-    if (JS_IsUndefined(method))
-        return JS_HasProperty(ctx, s->target, atom);
-    atom_val = JS_AtomToValue(ctx, atom);
-    if (JS_IsException(atom_val)) {
-        JS_FreeValue(ctx, method);
-        return -1;
-    }
-    args[0] = s->target;
-    args[1] = atom_val;
-    ret1 = JS_CallFree(ctx, method, s->handler, 2, args);
-    JS_FreeValue(ctx, atom_val);
-    if (JS_IsException(ret1))
-        return -1;
-    ret = JS_ToBoolFree(ctx, ret1);
-    if (!ret) {
-        JSPropertyDescriptor desc;
-        p = JS_VALUE_GET_OBJ(s->target);
-        res = JS_GetOwnPropertyInternal(ctx, &desc, p, atom);
-        if (res < 0)
-            return -1;
-        if (res) {
-            res2 = !(desc.flags & JS_PROP_CONFIGURABLE);
-            js_free_desc(ctx, &desc);
-            if (res2 || !p->extensible) {
-                JS_ThrowTypeError(ctx, "proxy: inconsistent has");
-                return -1;
-            }
-        }
-    }
-    return ret;
-}
-
-static JSValue js_proxy_get(JSContext *ctx, JSValueConst obj, JSAtom atom,
-                            JSValueConst receiver)
-{
-    JSProxyData *s;
-    JSValue method, ret, atom_val;
-    int res;
-    JSValueConst args[3];
-    JSPropertyDescriptor desc;
-
-    s = get_proxy_method(ctx, &method, obj, JS_ATOM_get);
-    if (!s)
-        return JS_EXCEPTION;
-    /* Note: recursion is possible thru the prototype of s->target */
-    if (JS_IsUndefined(method))
-        return JS_GetPropertyInternal(ctx, s->target, atom, receiver, FALSE);
-    atom_val = JS_AtomToValue(ctx, atom);
-    if (JS_IsException(atom_val)) {
-        JS_FreeValue(ctx, method);
-        return JS_EXCEPTION;
-    }
-    args[0] = s->target;
-    args[1] = atom_val;
-    args[2] = receiver;
-    ret = JS_CallFree(ctx, method, s->handler, 3, args);
-    JS_FreeValue(ctx, atom_val);
-    if (JS_IsException(ret))
-        return JS_EXCEPTION;
-    res = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(s->target), atom);
-    if (res < 0)
-        return JS_EXCEPTION;
-    if (res) {
-        if ((desc.flags & (JS_PROP_GETSET | JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)) == 0) {
-            if (!js_same_value(ctx, desc.value, ret)) {
-                goto fail;
-            }
-        } else if ((desc.flags & (JS_PROP_GETSET | JS_PROP_CONFIGURABLE)) == JS_PROP_GETSET) {
-            if (JS_IsUndefined(desc.getter) && !JS_IsUndefined(ret)) {
-            fail:
-                js_free_desc(ctx, &desc);
-                JS_FreeValue(ctx, ret);
-                return JS_ThrowTypeError(ctx, "proxy: inconsistent get");
-            }
-        }
-        js_free_desc(ctx, &desc);
-    }
-    return ret;
-}
-
-static int js_proxy_set(JSContext *ctx, JSValueConst obj, JSAtom atom,
-                        JSValueConst value, JSValueConst receiver, int flags)
-{
-    JSProxyData *s;
-    JSValue method, ret1, atom_val;
-    int ret, res;
-    JSValueConst args[4];
-
-    s = get_proxy_method(ctx, &method, obj, JS_ATOM_set);
-    if (!s)
-        return -1;
-    if (JS_IsUndefined(method)) {
-        return JS_SetPropertyGeneric(ctx, JS_VALUE_GET_OBJ(s->target), atom,
-                                     JS_DupValue(ctx, value), receiver,
-                                     flags);
-    }
-    atom_val = JS_AtomToValue(ctx, atom);
-    if (JS_IsException(atom_val)) {
-        JS_FreeValue(ctx, method);
-        return -1;
-    }
-    args[0] = s->target;
-    args[1] = atom_val;
-    args[2] = value;
-    args[3] = receiver;
-    ret1 = JS_CallFree(ctx, method, s->handler, 4, args);
-    JS_FreeValue(ctx, atom_val);
-    if (JS_IsException(ret1))
-        return -1;
-    ret = JS_ToBoolFree(ctx, ret1);
-    if (ret) {
-        JSPropertyDescriptor desc;
-        res = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(s->target), atom);
-        if (res < 0)
-            return -1;
-        if (res) {
-            if ((desc.flags & (JS_PROP_GETSET | JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)) == 0) {
-                if (!js_same_value(ctx, desc.value, value)) {
-                    goto fail;
-                }
-            } else if ((desc.flags & (JS_PROP_GETSET | JS_PROP_CONFIGURABLE)) == JS_PROP_GETSET && JS_IsUndefined(desc.setter)) {
-                fail:
-                    js_free_desc(ctx, &desc);
-                    JS_ThrowTypeError(ctx, "proxy: inconsistent set");
-                    return -1;
-            }
-            js_free_desc(ctx, &desc);
-        }
-    } else {
-        if ((flags & JS_PROP_THROW) ||
-            ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) {
-            JS_ThrowTypeError(ctx, "proxy: cannot set property");
-            return -1;
-        }
-    }
-    return ret;
-}
-
-static JSValue js_create_desc(JSContext *ctx, JSValueConst val,
-                              JSValueConst getter, JSValueConst setter,
-                              int flags)
-{
-    JSValue ret;
-    ret = JS_NewObject(ctx);
-    if (JS_IsException(ret))
-        return ret;
-    if (flags & JS_PROP_HAS_GET) {
-        JS_DefinePropertyValue(ctx, ret, JS_ATOM_get, JS_DupValue(ctx, getter),
-                               JS_PROP_C_W_E);
-    }
-    if (flags & JS_PROP_HAS_SET) {
-        JS_DefinePropertyValue(ctx, ret, JS_ATOM_set, JS_DupValue(ctx, setter),
-                               JS_PROP_C_W_E);
-    }
-    if (flags & JS_PROP_HAS_VALUE) {
-        JS_DefinePropertyValue(ctx, ret, JS_ATOM_value, JS_DupValue(ctx, val),
-                               JS_PROP_C_W_E);
-    }
-    if (flags & JS_PROP_HAS_WRITABLE) {
-        JS_DefinePropertyValue(ctx, ret, JS_ATOM_writable,
-                               JS_NewBool(ctx, (flags & JS_PROP_WRITABLE) != 0),
-                               JS_PROP_C_W_E);
-    }
-    if (flags & JS_PROP_HAS_ENUMERABLE) {
-        JS_DefinePropertyValue(ctx, ret, JS_ATOM_enumerable,
-                               JS_NewBool(ctx, (flags & JS_PROP_ENUMERABLE) != 0),
-                               JS_PROP_C_W_E);
-    }
-    if (flags & JS_PROP_HAS_CONFIGURABLE) {
-        JS_DefinePropertyValue(ctx, ret, JS_ATOM_configurable,
-                               JS_NewBool(ctx, (flags & JS_PROP_CONFIGURABLE) != 0),
-                               JS_PROP_C_W_E);
-    }
-    return ret;
-}
-
-static int js_proxy_get_own_property(JSContext *ctx, JSPropertyDescriptor *pdesc,
-                                     JSValueConst obj, JSAtom prop)
-{
-    JSProxyData *s;
-    JSValue method, ret1, prop_val;
-    int res, target_res, ret;
-    JSObject *p;
-    JSValueConst args[2];
-    JSPropertyDescriptor desc, target_desc;
-
-    s = get_proxy_method(ctx, &method, obj, JS_ATOM_getOwnPropertyDescriptor);
-    if (!s)
-        return -1;
-    p = JS_VALUE_GET_OBJ(s->target);
-    if (JS_IsUndefined(method)) {
-        return JS_GetOwnPropertyInternal(ctx, pdesc, p, prop);
-    }
-    prop_val = JS_AtomToValue(ctx, prop);
-    if (JS_IsException(prop_val)) {
-        JS_FreeValue(ctx, method);
-        return -1;
-    }
-    args[0] = s->target;
-    args[1] = prop_val;
-    ret1 = JS_CallFree(ctx, method, s->handler, 2, args);
-    JS_FreeValue(ctx, prop_val);
-    if (JS_IsException(ret1))
-        return -1;
-    if (!JS_IsObject(ret1) && !JS_IsUndefined(ret1)) {
-        JS_FreeValue(ctx, ret1);
-        goto fail;
-    }
-    target_res = JS_GetOwnPropertyInternal(ctx, &target_desc, p, prop);
-    if (target_res < 0) {
-        JS_FreeValue(ctx, ret1);
-        return -1;
-    }
-    if (target_res)
-        js_free_desc(ctx, &target_desc);
-    if (JS_IsUndefined(ret1)) {
-        if (target_res) {
-            if (!(target_desc.flags & JS_PROP_CONFIGURABLE) || !p->extensible)
-                goto fail;
-        }
-        ret = FALSE;
-    } else {
-        int flags1;
-
-        res = js_obj_to_desc(ctx, &desc, ret1);
-        JS_FreeValue(ctx, ret1);
-        if (res < 0)
-            return -1;
-        if (target_res) {
-            /* convert desc.flags to defineProperty flags */
-            flags1 = desc.flags | JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_ENUMERABLE;
-            if (desc.flags & JS_PROP_GETSET)
-                flags1 |= JS_PROP_HAS_GET | JS_PROP_HAS_SET;
-            else
-                flags1 |= JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE;
-            /* XXX: not complete check: need to compare value &
-               getter/setter as in defineproperty */
-            if (!check_define_prop_flags(target_desc.flags, flags1))
-                goto fail1;
-        } else {
-            if (!p->extensible)
-                goto fail1;
-        }
-        res = (!(desc.flags & JS_PROP_CONFIGURABLE) &&
-               (!target_res || (target_desc.flags & JS_PROP_CONFIGURABLE)));
-        if (res) {
-        fail1:
-            js_free_desc(ctx, &desc);
-        fail:
-            JS_ThrowTypeError(ctx, "proxy: inconsistent getOwnPropertyDescriptor");
-            return -1;
-        }
-        ret = TRUE;
-        if (pdesc) {
-            *pdesc = desc;
-        } else {
-            js_free_desc(ctx, &desc);
-        }
-    }
-    return ret;
-}
-
-static int js_proxy_define_own_property(JSContext *ctx, JSValueConst obj,
-                                        JSAtom prop, JSValueConst val,
-                                        JSValueConst getter, JSValueConst setter,
-                                        int flags)
-{
-    JSProxyData *s;
-    JSValue method, ret1, prop_val, desc_val;
-    int res, ret;
-    JSObject *p;
-    JSValueConst args[3];
-    JSPropertyDescriptor desc;
-    BOOL setting_not_configurable;
-
-    s = get_proxy_method(ctx, &method, obj, JS_ATOM_defineProperty);
-    if (!s)
-        return -1;
-    if (JS_IsUndefined(method)) {
-        return JS_DefineProperty(ctx, s->target, prop, val, getter, setter, flags);
-    }
-    prop_val = JS_AtomToValue(ctx, prop);
-    if (JS_IsException(prop_val)) {
-        JS_FreeValue(ctx, method);
-        return -1;
-    }
-    desc_val = js_create_desc(ctx, val, getter, setter, flags);
-    if (JS_IsException(desc_val)) {
-        JS_FreeValue(ctx, prop_val);
-        JS_FreeValue(ctx, method);
-        return -1;
-    }
-    args[0] = s->target;
-    args[1] = prop_val;
-    args[2] = desc_val;
-    ret1 = JS_CallFree(ctx, method, s->handler, 3, args);
-    JS_FreeValue(ctx, prop_val);
-    JS_FreeValue(ctx, desc_val);
-    if (JS_IsException(ret1))
-        return -1;
-    ret = JS_ToBoolFree(ctx, ret1);
-    if (!ret) {
-        if (flags & JS_PROP_THROW) {
-            JS_ThrowTypeError(ctx, "proxy: defineProperty exception");
-            return -1;
-        } else {
-            return 0;
-        }
-    }
-    p = JS_VALUE_GET_OBJ(s->target);
-    res = JS_GetOwnPropertyInternal(ctx, &desc, p, prop);
-    if (res < 0)
-        return -1;
-    setting_not_configurable = ((flags & (JS_PROP_HAS_CONFIGURABLE |
-                                          JS_PROP_CONFIGURABLE)) ==
-                                JS_PROP_HAS_CONFIGURABLE);
-    if (!res) {
-        if (!p->extensible || setting_not_configurable)
-            goto fail;
-    } else {
-        if (!check_define_prop_flags(desc.flags, flags) ||
-            ((desc.flags & JS_PROP_CONFIGURABLE) && setting_not_configurable)) {
-            goto fail1;
-        }
-        if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
-            if ((desc.flags & (JS_PROP_GETSET | JS_PROP_CONFIGURABLE)) ==
-                JS_PROP_GETSET) {
-                if ((flags & JS_PROP_HAS_GET) &&
-                    !js_same_value(ctx, getter, desc.getter)) {
-                    goto fail1;
-                }
-                if ((flags & JS_PROP_HAS_SET) &&
-                    !js_same_value(ctx, setter, desc.setter)) {
-                    goto fail1;
-                }
-            }
-        } else if (flags & JS_PROP_HAS_VALUE) {
-            if ((desc.flags & (JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)) == 0 &&
-                !js_same_value(ctx, val, desc.value)) {
-            fail1:
-                js_free_desc(ctx, &desc);
-            fail:
-                JS_ThrowTypeError(ctx, "proxy: inconsistent defineProperty");
-                return -1;
-            }
-        }
-        js_free_desc(ctx, &desc);
-    }
-    return 1;
-}
-
-static int js_proxy_delete_property(JSContext *ctx, JSValueConst obj,
-                                    JSAtom atom)
-{
-    JSProxyData *s;
-    JSValue method, ret, atom_val;
-    int res, res2;
-    JSValueConst args[2];
-
-    s = get_proxy_method(ctx, &method, obj, JS_ATOM_deleteProperty);
-    if (!s)
-        return -1;
-    if (JS_IsUndefined(method)) {
-        return JS_DeleteProperty(ctx, s->target, atom, 0);
-    }
-    atom_val = JS_AtomToValue(ctx, atom);;
-    if (JS_IsException(atom_val)) {
-        JS_FreeValue(ctx, method);
-        return -1;
-    }
-    args[0] = s->target;
-    args[1] = atom_val;
-    ret = JS_CallFree(ctx, method, s->handler, 2, args);
-    JS_FreeValue(ctx, atom_val);
-    if (JS_IsException(ret))
-        return -1;
-    res = JS_ToBoolFree(ctx, ret);
-    if (res) {
-        JSPropertyDescriptor desc;
-        res2 = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(s->target), atom);
-        if (res2 < 0)
-            return -1;
-        if (res2) {
-            res2 = !(desc.flags & JS_PROP_CONFIGURABLE);
-            js_free_desc(ctx, &desc);
-            if (res2) {
-                JS_ThrowTypeError(ctx, "proxy: inconsistent deleteProperty");
-                return -1;
-            }
-        }
-    }
-    return res;
-}
-
-/* return the index of the property or -1 if not found */
-static int find_prop_key(const JSPropertyEnum *tab, int n, JSAtom atom)
-{
-    int i;
-    for(i = 0; i < n; i++) {
-        if (tab[i].atom == atom)
-            return i;
-    }
-    return -1;
-}
-
-static int js_proxy_get_own_property_names(JSContext *ctx,
-                                           JSPropertyEnum **ptab,
-                                           uint32_t *plen,
-                                           JSValueConst obj)
-{
-    JSProxyData *s;
-    JSValue method, prop_array, val;
-    uint32_t len, i, len2;
-    JSPropertyEnum *tab, *tab2;
-    JSAtom atom;
-    JSPropertyDescriptor desc;
-    int res, is_extensible, idx;
-
-    s = get_proxy_method(ctx, &method, obj, JS_ATOM_ownKeys);
-    if (!s)
-        return -1;
-    if (JS_IsUndefined(method)) {
-        return JS_GetOwnPropertyNamesInternal(ctx, ptab, plen,
-                                      JS_VALUE_GET_OBJ(s->target),
-                                      JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK);
-    }
-    prop_array = JS_CallFree(ctx, method, s->handler, 1, (JSValueConst *)&s->target);
-    if (JS_IsException(prop_array))
-        return -1;
-    tab = NULL;
-    len = 0;
-    tab2 = NULL;
-    len2 = 0;
-    if (js_get_length32(ctx, &len, prop_array))
-        goto fail;
-    if (len == 0)
-        goto done;
-    tab = js_mallocz(ctx, sizeof(tab[0]) * len);
-    if (!tab)
-        goto fail;
-    for(i = 0; i < len; i++) {
-        val = JS_GetPropertyUint32(ctx, prop_array, i);
-        if (JS_IsException(val))
-            goto fail;
-        if (!JS_IsString(val) && !JS_IsSymbol(val)) {
-            JS_FreeValue(ctx, val);
-            JS_ThrowTypeError(ctx, "proxy: properties must be strings or symbols");
-            goto fail;
-        }
-        atom = js_value_to_atom(ctx, val);
-        JS_FreeValue(ctx, val);
-        if (atom == JS_ATOM_NULL)
-            goto fail;
-        tab[i].atom = atom;
-        tab[i].is_enumerable = FALSE; /* XXX: redundant? */
-    }
-
-    /* check duplicate properties (XXX: inefficient, could store the
-     * properties an a temporary object to use the hash) */
-    for(i = 1; i < len; i++) {
-        if (find_prop_key(tab, i, tab[i].atom) >= 0) {
-            JS_ThrowTypeError(ctx, "proxy: duplicate property");
-            goto fail;
-        }
-    }
-
-    is_extensible = JS_IsExtensible(ctx, s->target);
-    if (is_extensible < 0)
-        goto fail;
-
-    /* check if there are non configurable properties */
-    if (s->is_revoked) {
-        JS_ThrowTypeErrorRevokedProxy(ctx);
-        goto fail;
-    }
-    if (JS_GetOwnPropertyNamesInternal(ctx, &tab2, &len2, JS_VALUE_GET_OBJ(s->target),
-                               JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK))
-        goto fail;
-    for(i = 0; i < len2; i++) {
-        if (s->is_revoked) {
-            JS_ThrowTypeErrorRevokedProxy(ctx);
-            goto fail;
-        }
-        res = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(s->target),
-                                tab2[i].atom);
-        if (res < 0)
-            goto fail;
-        if (res) {  /* safety, property should be found */
-            js_free_desc(ctx, &desc);
-            if (!(desc.flags & JS_PROP_CONFIGURABLE) || !is_extensible) {
-                idx = find_prop_key(tab, len, tab2[i].atom);
-                if (idx < 0) {
-                    JS_ThrowTypeError(ctx, "proxy: target property must be present in proxy ownKeys");
-                    goto fail;
-                }
-                /* mark the property as found */
-                if (!is_extensible)
-                    tab[idx].is_enumerable = TRUE;
-            }
-        }
-    }
-    if (!is_extensible) {
-        /* check that all property in 'tab' were checked */
-        for(i = 0; i < len; i++) {
-            if (!tab[i].is_enumerable) {
-                JS_ThrowTypeError(ctx, "proxy: property not present in target were returned by non extensible proxy");
-                goto fail;
-            }
-        }
-    }
-
- done:
-    js_free_prop_enum(ctx, tab2, len2);
-    JS_FreeValue(ctx, prop_array);
-    *ptab = tab;
-    *plen = len;
-    return 0;
- fail:
-    js_free_prop_enum(ctx, tab2, len2);
-    js_free_prop_enum(ctx, tab, len);
-    JS_FreeValue(ctx, prop_array);
-    return -1;
-}
-
-static JSValue js_proxy_call(JSContext *ctx, JSValueConst func_obj,
-                             JSValueConst this_obj,
-                             int argc, JSValueConst *argv)
-{
-    JSProxyData *s;
-    JSValue method, arg_array, ret;
-    JSValueConst args[3];
-
-    s = get_proxy_method(ctx, &method, func_obj, JS_ATOM_apply);
-    if (!s)
-        return JS_EXCEPTION;
-    if (!s->is_func)
-        return JS_ThrowTypeError(ctx, "not a function");
-    if (JS_IsUndefined(method))
-        return JS_Call(ctx, s->target, this_obj, argc, argv);
-    arg_array = js_create_array(ctx, argc, argv);
-    if (JS_IsException(arg_array)) {
-        ret = JS_EXCEPTION;
-        goto fail;
-    }
-    args[0] = s->target;
-    args[1] = this_obj;
-    args[2] = arg_array;
-    ret = JS_Call(ctx, method, s->handler, 3, args);
- fail:
-    JS_FreeValue(ctx, method);
-    JS_FreeValue(ctx, arg_array);
-    return ret;
-}
-
-static JSValue js_proxy_call_constructor(JSContext *ctx, JSValueConst func_obj,
-                                         JSValueConst new_target,
-                                         int argc, JSValueConst *argv)
-{
-    JSProxyData *s;
-    JSValue method, arg_array, ret;
-    JSValueConst args[3];
-
-    s = get_proxy_method(ctx, &method, func_obj, JS_ATOM_construct);
-    if (!s)
-        return JS_EXCEPTION;
-    if (!JS_IsConstructor(ctx, s->target))
-        return JS_ThrowTypeError(ctx, "not a constructor");
-    if (JS_IsUndefined(method))
-        return JS_CallConstructor2(ctx, s->target, new_target, argc, argv);
-    arg_array = js_create_array(ctx, argc, argv);
-    if (JS_IsException(arg_array)) {
-        ret = JS_EXCEPTION;
-        goto fail;
-    }
-    args[0] = s->target;
-    args[1] = arg_array;
-    args[2] = new_target;
-    ret = JS_Call(ctx, method, s->handler, 3, args);
-    if (!JS_IsException(ret) && JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT) {
-        JS_FreeValue(ctx, ret);
-        ret = JS_ThrowTypeErrorNotAnObject(ctx);
-    }
- fail:
-    JS_FreeValue(ctx, method);
-    JS_FreeValue(ctx, arg_array);
-    return ret;
-}
-
-static int js_proxy_isArray(JSContext *ctx, JSValueConst obj)
-{
-    JSProxyData *s = JS_GetOpaque(obj, JS_CLASS_PROXY);
-    if (!s)
-        return FALSE;
-    if (s->is_revoked) {
-        JS_ThrowTypeErrorRevokedProxy(ctx);
-        return -1;
-    }
-    return JS_IsArray(ctx, s->target);
-}
-
-static const JSClassExoticMethods js_proxy_exotic_methods = {
-    .get_own_property = js_proxy_get_own_property,
-    .define_own_property = js_proxy_define_own_property,
-    .delete_property = js_proxy_delete_property,
-    .get_own_property_names = js_proxy_get_own_property_names,
-    .has_property = js_proxy_has,
-    .get_property = js_proxy_get,
-    .set_property = js_proxy_set,
-};
-
-static JSValue js_proxy_constructor(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    JSValueConst target, handler;
-    JSValue obj;
-    JSProxyData *s;
-
-    target = argv[0];
-    handler = argv[1];
-    if (JS_VALUE_GET_TAG(target) != JS_TAG_OBJECT ||
-        JS_VALUE_GET_TAG(handler) != JS_TAG_OBJECT)
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    s = JS_GetOpaque(target, JS_CLASS_PROXY);
-    if (s && s->is_revoked)
-        goto revoked_proxy;
-    s = JS_GetOpaque(handler, JS_CLASS_PROXY);
-    if (s && s->is_revoked) {
-    revoked_proxy:
-        return JS_ThrowTypeErrorRevokedProxy(ctx);
-    }
-
-    obj = JS_NewObjectProtoClass(ctx, JS_NULL, JS_CLASS_PROXY);
-    if (JS_IsException(obj))
-        return obj;
-    s = js_malloc(ctx, sizeof(JSProxyData));
-    if (!s) {
-        JS_FreeValue(ctx, obj);
-        return JS_EXCEPTION;
-    }
-    s->target = JS_DupValue(ctx, target);
-    s->handler = JS_DupValue(ctx, handler);
-    s->proto = JS_NULL;
-    s->is_func = JS_IsFunction(ctx, target);
-    s->is_revoked = FALSE;
-    JS_SetOpaque(obj, s);
-    JS_SetConstructorBit(ctx, obj, JS_IsConstructor(ctx, target));
-    return obj;
-}
-
-static JSValue js_proxy_revoke(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv, int magic,
-                               JSValue *func_data)
-{
-    JSProxyData *s = JS_GetOpaque(func_data[0], JS_CLASS_PROXY);
-    if (s) {
-        /* We do not free the handler and target in case they are
-           referenced as constants in the C call stack */
-        s->is_revoked = TRUE;
-        JS_FreeValue(ctx, func_data[0]);
-        func_data[0] = JS_NULL;
-    }
-    return JS_UNDEFINED;
-}
-
-static JSValue js_proxy_revoke_constructor(JSContext *ctx,
-                                           JSValueConst proxy_obj)
-{
-    return JS_NewCFunctionData(ctx, js_proxy_revoke, 0, 0, 1, &proxy_obj);
-}
-
-static JSValue js_proxy_revocable(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    JSValue proxy_obj, revoke_obj = JS_UNDEFINED, obj;
-
-    proxy_obj = js_proxy_constructor(ctx, JS_UNDEFINED, argc, argv);
-    if (JS_IsException(proxy_obj))
-        goto fail;
-    revoke_obj = js_proxy_revoke_constructor(ctx, proxy_obj);
-    if (JS_IsException(revoke_obj))
-        goto fail;
-    obj = JS_NewObject(ctx);
-    if (JS_IsException(obj))
-        goto fail;
-    // XXX: exceptions?
-    JS_DefinePropertyValue(ctx, obj, JS_ATOM_proxy, proxy_obj, JS_PROP_C_W_E);
-    JS_DefinePropertyValue(ctx, obj, JS_ATOM_revoke, revoke_obj, JS_PROP_C_W_E);
-    return obj;
- fail:
-    JS_FreeValue(ctx, proxy_obj);
-    JS_FreeValue(ctx, revoke_obj);
-    return JS_EXCEPTION;
-}
-
-static const JSCFunctionListEntry js_proxy_funcs[] = {
-    JS_CFUNC_DEF("revocable", 2, js_proxy_revocable ),
-};
-
-static const JSClassShortDef js_proxy_class_def[] = {
-    { JS_ATOM_Object, js_proxy_finalizer, js_proxy_mark }, /* JS_CLASS_PROXY */
-};
-
-void JS_AddIntrinsicProxy(JSContext *ctx)
-{
-    JSRuntime *rt = ctx->rt;
-    JSValue obj1;
-
-    if (!JS_IsRegisteredClass(rt, JS_CLASS_PROXY)) {
-        init_class_range(rt, js_proxy_class_def, JS_CLASS_PROXY,
-                         countof(js_proxy_class_def));
-        rt->class_array[JS_CLASS_PROXY].exotic = &js_proxy_exotic_methods;
-        rt->class_array[JS_CLASS_PROXY].call = js_proxy_call;
-    }
-
-    obj1 = JS_NewCFunction2(ctx, js_proxy_constructor, "Proxy", 2,
-                            JS_CFUNC_constructor, 0);
-    JS_SetConstructorBit(ctx, obj1, TRUE);
-    JS_SetPropertyFunctionList(ctx, obj1, js_proxy_funcs,
-                               countof(js_proxy_funcs));
-    JS_DefinePropertyValueStr(ctx, ctx->global_obj, "Proxy",
-                              obj1, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-}
-
-/* Symbol */
-
-static JSValue js_symbol_constructor(JSContext *ctx, JSValueConst new_target,
-                                     int argc, JSValueConst *argv)
-{
-    JSValue str;
-    JSString *p;
-
-    if (!JS_IsUndefined(new_target))
-        return JS_ThrowTypeError(ctx, "not a constructor");
-    if (argc == 0 || JS_IsUndefined(argv[0])) {
-        p = NULL;
-    } else {
-        str = JS_ToString(ctx, argv[0]);
-        if (JS_IsException(str))
-            return JS_EXCEPTION;
-        p = JS_VALUE_GET_STRING(str);
-    }
-    return JS_NewSymbol(ctx, p, JS_ATOM_TYPE_SYMBOL);
-}
-
-static JSValue js_thisSymbolValue(JSContext *ctx, JSValueConst this_val)
-{
-    if (JS_VALUE_GET_TAG(this_val) == JS_TAG_SYMBOL)
-        return JS_DupValue(ctx, this_val);
-
-    if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(this_val);
-        if (p->class_id == JS_CLASS_SYMBOL) {
-            if (JS_VALUE_GET_TAG(p->u.object_data) == JS_TAG_SYMBOL)
-                return JS_DupValue(ctx, p->u.object_data);
-        }
-    }
-    return JS_ThrowTypeError(ctx, "not a symbol");
-}
-
-static JSValue js_symbol_toString(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    JSValue val, ret;
-    val = js_thisSymbolValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    /* XXX: use JS_ToStringInternal() with a flags */
-    ret = js_string_constructor(ctx, JS_UNDEFINED, 1, (JSValueConst *)&val);
-    JS_FreeValue(ctx, val);
-    return ret;
-}
-
-static JSValue js_symbol_valueOf(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    return js_thisSymbolValue(ctx, this_val);
-}
-
-static JSValue js_symbol_get_description(JSContext *ctx, JSValueConst this_val)
-{
-    JSValue val, ret;
-    JSAtomStruct *p;
-
-    val = js_thisSymbolValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    p = JS_VALUE_GET_PTR(val);
-    if (p->len == 0 && p->is_wide_char != 0) {
-        ret = JS_UNDEFINED;
-    } else {
-        ret = JS_AtomToString(ctx, js_get_atom_index(ctx->rt, p));
-    }
-    JS_FreeValue(ctx, val);
-    return ret;
-}
-
-static const JSCFunctionListEntry js_symbol_proto_funcs[] = {
-    JS_CFUNC_DEF("toString", 0, js_symbol_toString ),
-    JS_CFUNC_DEF("valueOf", 0, js_symbol_valueOf ),
-    // XXX: should have writable: false
-    JS_CFUNC_DEF("[Symbol.toPrimitive]", 1, js_symbol_valueOf ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Symbol", JS_PROP_CONFIGURABLE ),
-    JS_CGETSET_DEF("description", js_symbol_get_description, NULL ),
-};
-
-static JSValue js_symbol_for(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    JSValue str;
-
-    str = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(str))
-        return JS_EXCEPTION;
-    return JS_NewSymbol(ctx, JS_VALUE_GET_STRING(str), JS_ATOM_TYPE_GLOBAL_SYMBOL);
-}
-
-static JSValue js_symbol_keyFor(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSAtomStruct *p;
-
-    if (!JS_IsSymbol(argv[0]))
-        return JS_ThrowTypeError(ctx, "not a symbol");
-    p = JS_VALUE_GET_PTR(argv[0]);
-    if (p->atom_type != JS_ATOM_TYPE_GLOBAL_SYMBOL)
-        return JS_UNDEFINED;
-    return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p));
-}
-
-static const JSCFunctionListEntry js_symbol_funcs[] = {
-    JS_CFUNC_DEF("for", 1, js_symbol_for ),
-    JS_CFUNC_DEF("keyFor", 1, js_symbol_keyFor ),
-};
-
-/* Set/Map/WeakSet/WeakMap */
-
-typedef struct JSMapRecord {
-    int ref_count; /* used during enumeration to avoid freeing the record */
-    BOOL empty; /* TRUE if the record is deleted */
-    struct JSMapState *map;
-    struct JSMapRecord *next_weak_ref;
-    struct list_head link;
-    struct list_head hash_link;
-    JSValue key;
-    JSValue value;
-} JSMapRecord;
-
-typedef struct JSMapState {
-    BOOL is_weak; /* TRUE if WeakSet/WeakMap */
-    struct list_head records; /* list of JSMapRecord.link */
-    uint32_t record_count;
-    struct list_head *hash_table;
-    uint32_t hash_size; /* must be a power of two */
-    uint32_t record_count_threshold; /* count at which a hash table
-                                        resize is needed */
-} JSMapState;
-
-#define MAGIC_SET (1 << 0)
-#define MAGIC_WEAK (1 << 1)
-
-static JSValue js_map_constructor(JSContext *ctx, JSValueConst new_target,
-                                  int argc, JSValueConst *argv, int magic)
-{
-    JSMapState *s;
-    JSValue obj, adder = JS_UNDEFINED, iter = JS_UNDEFINED, next_method = JS_UNDEFINED;
-    JSValueConst arr;
-    BOOL is_set, is_weak;
-
-    is_set = magic & MAGIC_SET;
-    is_weak = ((magic & MAGIC_WEAK) != 0);
-    obj = js_create_from_ctor(ctx, new_target, JS_CLASS_MAP + magic);
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-    s = js_mallocz(ctx, sizeof(*s));
-    if (!s)
-        goto fail;
-    init_list_head(&s->records);
-    s->is_weak = is_weak;
-    JS_SetOpaque(obj, s);
-    s->hash_size = 1;
-    s->hash_table = js_malloc(ctx, sizeof(s->hash_table[0]) * s->hash_size);
-    if (!s->hash_table)
-        goto fail;
-    init_list_head(&s->hash_table[0]);
-    s->record_count_threshold = 4;
-
-    arr = JS_UNDEFINED;
-    if (argc > 0)
-        arr = argv[0];
-    if (!JS_IsUndefined(arr) && !JS_IsNull(arr)) {
-        JSValue item, ret;
-        BOOL done;
-
-        adder = JS_GetProperty(ctx, obj, is_set ? JS_ATOM_add : JS_ATOM_set);
-        if (JS_IsException(adder))
-            goto fail;
-        if (!JS_IsFunction(ctx, adder)) {
-            JS_ThrowTypeError(ctx, "set/add is not a function");
-            goto fail;
-        }
-
-        iter = JS_GetIterator(ctx, arr, FALSE);
-        if (JS_IsException(iter))
-            goto fail;
-        next_method = JS_GetProperty(ctx, iter, JS_ATOM_next);
-        if (JS_IsException(next_method))
-            goto fail;
-
-        for(;;) {
-            item = JS_IteratorNext(ctx, iter, next_method, 0, NULL, &done);
-            if (JS_IsException(item))
-                goto fail;
-            if (done) {
-                JS_FreeValue(ctx, item);
-                break;
-            }
-            if (is_set) {
-                ret = JS_Call(ctx, adder, obj, 1, (JSValueConst *)&item);
-                if (JS_IsException(ret)) {
-                    JS_FreeValue(ctx, item);
-                    goto fail;
-                }
-            } else {
-                JSValue key, value;
-                JSValueConst args[2];
-                key = JS_UNDEFINED;
-                value = JS_UNDEFINED;
-                if (!JS_IsObject(item)) {
-                    JS_ThrowTypeErrorNotAnObject(ctx);
-                    goto fail1;
-                }
-                key = JS_GetPropertyUint32(ctx, item, 0);
-                if (JS_IsException(key))
-                    goto fail1;
-                value = JS_GetPropertyUint32(ctx, item, 1);
-                if (JS_IsException(value))
-                    goto fail1;
-                args[0] = key;
-                args[1] = value;
-                ret = JS_Call(ctx, adder, obj, 2, args);
-                if (JS_IsException(ret)) {
-                fail1:
-                    JS_FreeValue(ctx, item);
-                    JS_FreeValue(ctx, key);
-                    JS_FreeValue(ctx, value);
-                    goto fail;
-                }
-                JS_FreeValue(ctx, key);
-                JS_FreeValue(ctx, value);
-            }
-            JS_FreeValue(ctx, ret);
-            JS_FreeValue(ctx, item);
-        }
-        JS_FreeValue(ctx, next_method);
-        JS_FreeValue(ctx, iter);
-        JS_FreeValue(ctx, adder);
-    }
-    return obj;
- fail:
-    if (JS_IsObject(iter)) {
-        /* close the iterator object, preserving pending exception */
-        JS_IteratorClose(ctx, iter, TRUE);
-    }
-    JS_FreeValue(ctx, next_method);
-    JS_FreeValue(ctx, iter);
-    JS_FreeValue(ctx, adder);
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-/* XXX: could normalize strings to speed up comparison */
-static JSValueConst map_normalize_key(JSContext *ctx, JSValueConst key)
-{
-    uint32_t tag = JS_VALUE_GET_TAG(key);
-    /* convert -0.0 to +0.0 */
-    if (JS_TAG_IS_FLOAT64(tag) && JS_VALUE_GET_FLOAT64(key) == 0.0) {
-        key = JS_NewInt32(ctx, 0);
-    }
-    return key;
-}
-
-/* XXX: better hash ? */
-static uint32_t map_hash_key(JSContext *ctx, JSValueConst key)
-{
-    uint32_t tag = JS_VALUE_GET_NORM_TAG(key);
-    uint32_t h;
-    double d;
-    JSFloat64Union u;
-
-    switch(tag) {
-    case JS_TAG_BOOL:
-        h = JS_VALUE_GET_INT(key);
-        break;
-    case JS_TAG_STRING:
-        h = hash_string(JS_VALUE_GET_STRING(key), 0);
-        break;
-    case JS_TAG_OBJECT:
-    case JS_TAG_SYMBOL:
-        h = (uintptr_t)JS_VALUE_GET_PTR(key) * 3163;
-        break;
-    case JS_TAG_INT:
-        d = JS_VALUE_GET_INT(key) * 3163;
-        goto hash_float64;
-    case JS_TAG_FLOAT64:
-        d = JS_VALUE_GET_FLOAT64(key);
-        /* normalize the NaN */
-        if (isnan(d))
-            d = JS_FLOAT64_NAN;
-    hash_float64:
-        u.d = d;
-        h = (u.u32[0] ^ u.u32[1]) * 3163;
-        break;
-    default:
-        h = 0; /* XXX: bignum support */
-        break;
-    }
-    h ^= tag;
-    return h;
-}
-
-static JSMapRecord *map_find_record(JSContext *ctx, JSMapState *s,
-                                    JSValueConst key)
-{
-    struct list_head *el;
-    JSMapRecord *mr;
-    uint32_t h;
-    h = map_hash_key(ctx, key) & (s->hash_size - 1);
-    list_for_each(el, &s->hash_table[h]) {
-        mr = list_entry(el, JSMapRecord, hash_link);
-        if (js_same_value_zero(ctx, mr->key, key))
-            return mr;
-    }
-    return NULL;
-}
-
-static void map_hash_resize(JSContext *ctx, JSMapState *s)
-{
-    uint32_t new_hash_size, i, h;
-    size_t slack;
-    struct list_head *new_hash_table, *el;
-    JSMapRecord *mr;
-
-    /* XXX: no reporting of memory allocation failure */
-    if (s->hash_size == 1)
-        new_hash_size = 4;
-    else
-        new_hash_size = s->hash_size * 2;
-    new_hash_table = js_realloc2(ctx, s->hash_table,
-                                 sizeof(new_hash_table[0]) * new_hash_size, &slack);
-    if (!new_hash_table)
-        return;
-    new_hash_size += slack / sizeof(*new_hash_table);
-
-    for(i = 0; i < new_hash_size; i++)
-        init_list_head(&new_hash_table[i]);
-
-    list_for_each(el, &s->records) {
-        mr = list_entry(el, JSMapRecord, link);
-        if (!mr->empty) {
-            h = map_hash_key(ctx, mr->key) & (new_hash_size - 1);
-            list_add_tail(&mr->hash_link, &new_hash_table[h]);
-        }
-    }
-    s->hash_table = new_hash_table;
-    s->hash_size = new_hash_size;
-    s->record_count_threshold = new_hash_size * 2;
-}
-
-static JSMapRecord *map_add_record(JSContext *ctx, JSMapState *s,
-                                   JSValueConst key)
-{
-    uint32_t h;
-    JSMapRecord *mr;
-
-    mr = js_malloc(ctx, sizeof(*mr));
-    if (!mr)
-        return NULL;
-    mr->ref_count = 1;
-    mr->map = s;
-    mr->empty = FALSE;
-    if (s->is_weak) {
-        JSObject *p = JS_VALUE_GET_OBJ(key);
-        /* Add the weak reference */
-        mr->next_weak_ref = p->first_weak_ref;
-        p->first_weak_ref = mr;
-    } else {
-        JS_DupValue(ctx, key);
-    }
-    mr->key = (JSValue)key;
-    h = map_hash_key(ctx, key) & (s->hash_size - 1);
-    list_add_tail(&mr->hash_link, &s->hash_table[h]);
-    list_add_tail(&mr->link, &s->records);
-    s->record_count++;
-    if (s->record_count >= s->record_count_threshold) {
-        map_hash_resize(ctx, s);
-    }
-    return mr;
-}
-
-/* Remove the weak reference from the object weak
-   reference list. we don't use a doubly linked list to
-   save space, assuming a given object has few weak
-       references to it */
-static void delete_weak_ref(JSRuntime *rt, JSMapRecord *mr)
-{
-    JSMapRecord **pmr, *mr1;
-    JSObject *p;
-
-    p = JS_VALUE_GET_OBJ(mr->key);
-    pmr = &p->first_weak_ref;
-    for(;;) {
-        mr1 = *pmr;
-        assert(mr1 != NULL);
-        if (mr1 == mr)
-            break;
-        pmr = &mr1->next_weak_ref;
-    }
-    *pmr = mr1->next_weak_ref;
-}
-
-static void map_delete_record(JSRuntime *rt, JSMapState *s, JSMapRecord *mr)
-{
-    if (mr->empty)
-        return;
-    list_del(&mr->hash_link);
-    if (s->is_weak) {
-        delete_weak_ref(rt, mr);
-    } else {
-        JS_FreeValueRT(rt, mr->key);
-    }
-    JS_FreeValueRT(rt, mr->value);
-    if (--mr->ref_count == 0) {
-        list_del(&mr->link);
-        js_free_rt(rt, mr);
-    } else {
-        /* keep a zombie record for iterators */
-        mr->empty = TRUE;
-        mr->key = JS_UNDEFINED;
-        mr->value = JS_UNDEFINED;
-    }
-    s->record_count--;
-}
-
-static void map_decref_record(JSRuntime *rt, JSMapRecord *mr)
-{
-    if (--mr->ref_count == 0) {
-        /* the record can be safely removed */
-        assert(mr->empty);
-        list_del(&mr->link);
-        js_free_rt(rt, mr);
-    }
-}
-
-static void reset_weak_ref(JSRuntime *rt, JSObject *p)
-{
-    JSMapRecord *mr, *mr_next;
-    JSMapState *s;
-    
-    /* first pass to remove the records from the WeakMap/WeakSet
-       lists */
-    for(mr = p->first_weak_ref; mr != NULL; mr = mr->next_weak_ref) {
-        s = mr->map;
-        assert(s->is_weak);
-        assert(!mr->empty); /* no iterator on WeakMap/WeakSet */
-        list_del(&mr->hash_link);
-        list_del(&mr->link);
-    }
-    
-    /* second pass to free the values to avoid modifying the weak
-       reference list while traversing it. */
-    for(mr = p->first_weak_ref; mr != NULL; mr = mr_next) {
-        mr_next = mr->next_weak_ref;
-        JS_FreeValueRT(rt, mr->value);
-        js_free_rt(rt, mr);
-    }
-
-    p->first_weak_ref = NULL; /* fail safe */
-}
-
-static JSValue js_map_set(JSContext *ctx, JSValueConst this_val,
-                          int argc, JSValueConst *argv, int magic)
-{
-    JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
-    JSMapRecord *mr;
-    JSValueConst key, value;
-
-    if (!s)
-        return JS_EXCEPTION;
-    key = map_normalize_key(ctx, argv[0]);
-    if (s->is_weak && !JS_IsObject(key))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    if (magic & MAGIC_SET)
-        value = JS_UNDEFINED;
-    else
-        value = argv[1];
-    mr = map_find_record(ctx, s, key);
-    if (mr) {
-        JS_FreeValue(ctx, mr->value);
-    } else {
-        mr = map_add_record(ctx, s, key);
-        if (!mr)
-            return JS_EXCEPTION;
-    }
-    mr->value = JS_DupValue(ctx, value);
-    return JS_DupValue(ctx, this_val);
-}
-
-static JSValue js_map_get(JSContext *ctx, JSValueConst this_val,
-                          int argc, JSValueConst *argv, int magic)
-{
-    JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
-    JSMapRecord *mr;
-    JSValueConst key;
-
-    if (!s)
-        return JS_EXCEPTION;
-    key = map_normalize_key(ctx, argv[0]);
-    mr = map_find_record(ctx, s, key);
-    if (!mr)
-        return JS_UNDEFINED;
-    else
-        return JS_DupValue(ctx, mr->value);
-}
-
-static JSValue js_map_has(JSContext *ctx, JSValueConst this_val,
-                          int argc, JSValueConst *argv, int magic)
-{
-    JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
-    JSMapRecord *mr;
-    JSValueConst key;
-
-    if (!s)
-        return JS_EXCEPTION;
-    key = map_normalize_key(ctx, argv[0]);
-    mr = map_find_record(ctx, s, key);
-    return JS_NewBool(ctx, (mr != NULL));
-}
-
-static JSValue js_map_delete(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv, int magic)
-{
-    JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
-    JSMapRecord *mr;
-    JSValueConst key;
-
-    if (!s)
-        return JS_EXCEPTION;
-    key = map_normalize_key(ctx, argv[0]);
-    mr = map_find_record(ctx, s, key);
-    if (!mr)
-        return JS_FALSE;
-    map_delete_record(ctx->rt, s, mr);
-    return JS_TRUE;
-}
-
-static JSValue js_map_clear(JSContext *ctx, JSValueConst this_val,
-                            int argc, JSValueConst *argv, int magic)
-{
-    JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
-    struct list_head *el, *el1;
-    JSMapRecord *mr;
-
-    if (!s)
-        return JS_EXCEPTION;
-    list_for_each_safe(el, el1, &s->records) {
-        mr = list_entry(el, JSMapRecord, link);
-        map_delete_record(ctx->rt, s, mr);
-    }
-    return JS_UNDEFINED;
-}
-
-static JSValue js_map_get_size(JSContext *ctx, JSValueConst this_val, int magic)
-{
-    JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
-    if (!s)
-        return JS_EXCEPTION;
-    return JS_NewUint32(ctx, s->record_count);
-}
-
-static JSValue js_map_forEach(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv, int magic)
-{
-    JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
-    JSValueConst func, this_arg;
-    JSValue ret, args[3];
-    struct list_head *el;
-    JSMapRecord *mr;
-
-    if (!s)
-        return JS_EXCEPTION;
-    func = argv[0];
-    if (argc > 1)
-        this_arg = argv[1];
-    else
-        this_arg = JS_UNDEFINED;
-    if (check_function(ctx, func))
-        return JS_EXCEPTION;
-    /* Note: the list can be modified while traversing it, but the
-       current element is locked */
-    el = s->records.next;
-    while (el != &s->records) {
-        mr = list_entry(el, JSMapRecord, link);
-        if (!mr->empty) {
-            mr->ref_count++;
-            /* must duplicate in case the record is deleted */
-            args[1] = JS_DupValue(ctx, mr->key);
-            if (magic)
-                args[0] = args[1];
-            else
-                args[0] = JS_DupValue(ctx, mr->value);
-            args[2] = (JSValue)this_val;
-            ret = JS_Call(ctx, func, this_arg, 3, (JSValueConst *)args);
-            JS_FreeValue(ctx, args[0]);
-            if (!magic)
-                JS_FreeValue(ctx, args[1]);
-            el = el->next;
-            map_decref_record(ctx->rt, mr);
-            if (JS_IsException(ret))
-                return ret;
-            JS_FreeValue(ctx, ret);
-        } else {
-            el = el->next;
-        }
-    }
-    return JS_UNDEFINED;
-}
-
-static void js_map_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p;
-    JSMapState *s;
-    struct list_head *el, *el1;
-    JSMapRecord *mr;
-
-    p = JS_VALUE_GET_OBJ(val);
-    s = p->u.map_state;
-    if (s) {
-        /* if the object is deleted we are sure that no iterator is
-           using it */
-        list_for_each_safe(el, el1, &s->records) {
-            mr = list_entry(el, JSMapRecord, link);
-            if (!mr->empty) {
-                if (s->is_weak)
-                    delete_weak_ref(rt, mr);
-                else
-                    JS_FreeValueRT(rt, mr->key);
-                JS_FreeValueRT(rt, mr->value);
-            }
-            js_free_rt(rt, mr);
-        }
-        js_free_rt(rt, s->hash_table);
-        js_free_rt(rt, s);
-    }
-}
-
-static void js_map_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSMapState *s;
-    struct list_head *el;
-    JSMapRecord *mr;
-
-    s = p->u.map_state;
-    if (s) {
-        list_for_each(el, &s->records) {
-            mr = list_entry(el, JSMapRecord, link);
-            if (!s->is_weak)
-                JS_MarkValue(rt, mr->key, mark_func);
-            JS_MarkValue(rt, mr->value, mark_func);
-        }
-    }
-}
-
-/* Map Iterator */
-
-typedef struct JSMapIteratorData {
-    JSValue obj;
-    JSIteratorKindEnum kind;
-    JSMapRecord *cur_record;
-} JSMapIteratorData;
-
-static void js_map_iterator_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p;
-    JSMapIteratorData *it;
-
-    p = JS_VALUE_GET_OBJ(val);
-    it = p->u.map_iterator_data;
-    if (it) {
-        /* During the GC sweep phase the Map finalizer may be
-           called before the Map iterator finalizer */
-        if (JS_IsLiveObject(rt, it->obj) && it->cur_record) {
-            map_decref_record(rt, it->cur_record);
-        }
-        JS_FreeValueRT(rt, it->obj);
-        js_free_rt(rt, it);
-    }
-}
-
-static void js_map_iterator_mark(JSRuntime *rt, JSValueConst val,
-                                 JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSMapIteratorData *it;
-    it = p->u.map_iterator_data;
-    if (it) {
-        /* the record is already marked by the object */
-        JS_MarkValue(rt, it->obj, mark_func);
-    }
-}
-
-static JSValue js_create_map_iterator(JSContext *ctx, JSValueConst this_val,
-                                      int argc, JSValueConst *argv, int magic)
-{
-    JSIteratorKindEnum kind;
-    JSMapState *s;
-    JSMapIteratorData *it;
-    JSValue enum_obj;
-
-    kind = magic >> 2;
-    magic &= 3;
-    s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
-    if (!s)
-        return JS_EXCEPTION;
-    enum_obj = JS_NewObjectClass(ctx, JS_CLASS_MAP_ITERATOR + magic);
-    if (JS_IsException(enum_obj))
-        goto fail;
-    it = js_malloc(ctx, sizeof(*it));
-    if (!it) {
-        JS_FreeValue(ctx, enum_obj);
-        goto fail;
-    }
-    it->obj = JS_DupValue(ctx, this_val);
-    it->kind = kind;
-    it->cur_record = NULL;
-    JS_SetOpaque(enum_obj, it);
-    return enum_obj;
- fail:
-    return JS_EXCEPTION;
-}
-
-static JSValue js_map_iterator_next(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv,
-                                    BOOL *pdone, int magic)
-{
-    JSMapIteratorData *it;
-    JSMapState *s;
-    JSMapRecord *mr;
-    struct list_head *el;
-
-    it = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP_ITERATOR + magic);
-    if (!it) {
-        *pdone = FALSE;
-        return JS_EXCEPTION;
-    }
-    if (JS_IsUndefined(it->obj))
-        goto done;
-    s = JS_GetOpaque(it->obj, JS_CLASS_MAP + magic);
-    assert(s != NULL);
-    if (!it->cur_record) {
-        el = s->records.next;
-    } else {
-        mr = it->cur_record;
-        el = mr->link.next;
-        map_decref_record(ctx->rt, mr); /* the record can be freed here */
-    }
-    for(;;) {
-        if (el == &s->records) {
-            /* no more record  */
-            it->cur_record = NULL;
-            JS_FreeValue(ctx, it->obj);
-            it->obj = JS_UNDEFINED;
-        done:
-            /* end of enumeration */
-            *pdone = TRUE;
-            return JS_UNDEFINED;
-        }
-        mr = list_entry(el, JSMapRecord, link);
-        if (!mr->empty)
-            break;
-        /* get the next record */
-        el = mr->link.next;
-    }
-
-    /* lock the record so that it won't be freed */
-    mr->ref_count++;
-    it->cur_record = mr;
-    *pdone = FALSE;
-
-    if (it->kind == JS_ITERATOR_KIND_KEY) {
-        return JS_DupValue(ctx, mr->key);
-    } else {
-        JSValueConst args[2];
-        args[0] = mr->key;
-        if (magic)
-            args[1] = mr->key;
-        else
-            args[1] = mr->value;
-        if (it->kind == JS_ITERATOR_KIND_VALUE) {
-            return JS_DupValue(ctx, args[1]);
-        } else {
-            return js_create_array(ctx, 2, args);
-        }
-    }
-}
-
-static const JSCFunctionListEntry js_map_funcs[] = {
-    JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
-};
-
-static const JSCFunctionListEntry js_map_proto_funcs[] = {
-    JS_CFUNC_MAGIC_DEF("set", 2, js_map_set, 0 ),
-    JS_CFUNC_MAGIC_DEF("get", 1, js_map_get, 0 ),
-    JS_CFUNC_MAGIC_DEF("has", 1, js_map_has, 0 ),
-    JS_CFUNC_MAGIC_DEF("delete", 1, js_map_delete, 0 ),
-    JS_CFUNC_MAGIC_DEF("clear", 0, js_map_clear, 0 ),
-    JS_CGETSET_MAGIC_DEF("size", js_map_get_size, NULL, 0),
-    JS_CFUNC_MAGIC_DEF("forEach", 1, js_map_forEach, 0 ),
-    JS_CFUNC_MAGIC_DEF("values", 0, js_create_map_iterator, (JS_ITERATOR_KIND_VALUE << 2) | 0 ),
-    JS_CFUNC_MAGIC_DEF("keys", 0, js_create_map_iterator, (JS_ITERATOR_KIND_KEY << 2) | 0 ),
-    JS_CFUNC_MAGIC_DEF("entries", 0, js_create_map_iterator, (JS_ITERATOR_KIND_KEY_AND_VALUE << 2) | 0 ),
-    JS_ALIAS_DEF("[Symbol.iterator]", "entries" ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Map", JS_PROP_CONFIGURABLE ),
-};
-
-static const JSCFunctionListEntry js_map_iterator_proto_funcs[] = {
-    JS_ITERATOR_NEXT_DEF("next", 0, js_map_iterator_next, 0 ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Map Iterator", JS_PROP_CONFIGURABLE ),
-};
-
-static const JSCFunctionListEntry js_set_proto_funcs[] = {
-    JS_CFUNC_MAGIC_DEF("add", 1, js_map_set, MAGIC_SET ),
-    JS_CFUNC_MAGIC_DEF("has", 1, js_map_has, MAGIC_SET ),
-    JS_CFUNC_MAGIC_DEF("delete", 1, js_map_delete, MAGIC_SET ),
-    JS_CFUNC_MAGIC_DEF("clear", 0, js_map_clear, MAGIC_SET ),
-    JS_CGETSET_MAGIC_DEF("size", js_map_get_size, NULL, MAGIC_SET ),
-    JS_CFUNC_MAGIC_DEF("forEach", 1, js_map_forEach, MAGIC_SET ),
-    JS_CFUNC_MAGIC_DEF("values", 0, js_create_map_iterator, (JS_ITERATOR_KIND_KEY << 2) | MAGIC_SET ),
-    JS_ALIAS_DEF("keys", "values" ),
-    JS_ALIAS_DEF("[Symbol.iterator]", "values" ),
-    JS_CFUNC_MAGIC_DEF("entries", 0, js_create_map_iterator, (JS_ITERATOR_KIND_KEY_AND_VALUE << 2) | MAGIC_SET ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Set", JS_PROP_CONFIGURABLE ),
-};
-
-static const JSCFunctionListEntry js_set_iterator_proto_funcs[] = {
-    JS_ITERATOR_NEXT_DEF("next", 0, js_map_iterator_next, MAGIC_SET ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Set Iterator", JS_PROP_CONFIGURABLE ),
-};
-
-static const JSCFunctionListEntry js_weak_map_proto_funcs[] = {
-    JS_CFUNC_MAGIC_DEF("set", 2, js_map_set, MAGIC_WEAK ),
-    JS_CFUNC_MAGIC_DEF("get", 1, js_map_get, MAGIC_WEAK ),
-    JS_CFUNC_MAGIC_DEF("has", 1, js_map_has, MAGIC_WEAK ),
-    JS_CFUNC_MAGIC_DEF("delete", 1, js_map_delete, MAGIC_WEAK ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "WeakMap", JS_PROP_CONFIGURABLE ),
-};
-
-static const JSCFunctionListEntry js_weak_set_proto_funcs[] = {
-    JS_CFUNC_MAGIC_DEF("add", 1, js_map_set, MAGIC_SET | MAGIC_WEAK ),
-    JS_CFUNC_MAGIC_DEF("has", 1, js_map_has, MAGIC_SET | MAGIC_WEAK ),
-    JS_CFUNC_MAGIC_DEF("delete", 1, js_map_delete, MAGIC_SET | MAGIC_WEAK ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "WeakSet", JS_PROP_CONFIGURABLE ),
-};
-
-static const JSCFunctionListEntry * const js_map_proto_funcs_ptr[6] = {
-    js_map_proto_funcs,
-    js_set_proto_funcs,
-    js_weak_map_proto_funcs,
-    js_weak_set_proto_funcs,
-    js_map_iterator_proto_funcs,
-    js_set_iterator_proto_funcs,
-};
-
-static const uint8_t js_map_proto_funcs_count[6] = {
-    countof(js_map_proto_funcs),
-    countof(js_set_proto_funcs),
-    countof(js_weak_map_proto_funcs),
-    countof(js_weak_set_proto_funcs),
-    countof(js_map_iterator_proto_funcs),
-    countof(js_set_iterator_proto_funcs),
-};
-
-void JS_AddIntrinsicMapSet(JSContext *ctx)
-{
-    int i;
-    JSValue obj1;
-    char buf[ATOM_GET_STR_BUF_SIZE];
-
-    for(i = 0; i < 4; i++) {
-        const char *name = JS_AtomGetStr(ctx, buf, sizeof(buf),
-                                         JS_ATOM_Map + i);
-        ctx->class_proto[JS_CLASS_MAP + i] = JS_NewObject(ctx);
-        JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_MAP + i],
-                                   js_map_proto_funcs_ptr[i],
-                                   js_map_proto_funcs_count[i]);
-        obj1 = JS_NewCFunctionMagic(ctx, js_map_constructor, name, 0,
-                                    JS_CFUNC_constructor_magic, i);
-        if (i < 2) {
-            JS_SetPropertyFunctionList(ctx, obj1, js_map_funcs,
-                                       countof(js_map_funcs));
-        }
-        JS_NewGlobalCConstructor2(ctx, obj1, name, ctx->class_proto[JS_CLASS_MAP + i]);
-    }
-
-    for(i = 0; i < 2; i++) {
-        ctx->class_proto[JS_CLASS_MAP_ITERATOR + i] =
-            JS_NewObjectProto(ctx, ctx->iterator_proto);
-        JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_MAP_ITERATOR + i],
-                                   js_map_proto_funcs_ptr[i + 4],
-                                   js_map_proto_funcs_count[i + 4]);
-    }
-}
-
-/* Generator */
-static const JSCFunctionListEntry js_generator_function_proto_funcs[] = {
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "GeneratorFunction", JS_PROP_CONFIGURABLE),
-};
-
-static const JSCFunctionListEntry js_generator_proto_funcs[] = {
-    JS_ITERATOR_NEXT_DEF("next", 1, js_generator_next, GEN_MAGIC_NEXT ),
-    JS_ITERATOR_NEXT_DEF("return", 1, js_generator_next, GEN_MAGIC_RETURN ),
-    JS_ITERATOR_NEXT_DEF("throw", 1, js_generator_next, GEN_MAGIC_THROW ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Generator", JS_PROP_CONFIGURABLE),
-};
-
-/* Promise */
-
-typedef enum JSPromiseStateEnum {
-    JS_PROMISE_PENDING,
-    JS_PROMISE_FULFILLED,
-    JS_PROMISE_REJECTED,
-} JSPromiseStateEnum;
-
-typedef struct JSPromiseData {
-    JSPromiseStateEnum promise_state;
-    /* 0=fulfill, 1=reject, list of JSPromiseReactionData.link */
-    struct list_head promise_reactions[2];
-    BOOL is_handled; /* Note: only useful to debug */
-    JSValue promise_result;
-} JSPromiseData;
-
-typedef struct JSPromiseFunctionDataResolved {
-    int ref_count;
-    BOOL already_resolved;
-} JSPromiseFunctionDataResolved;
-
-typedef struct JSPromiseFunctionData {
-    JSValue promise;
-    JSPromiseFunctionDataResolved *presolved;
-} JSPromiseFunctionData;
-
-typedef struct JSPromiseReactionData {
-    struct list_head link; /* not used in promise_reaction_job */
-    JSValue resolving_funcs[2];
-    JSValue handler;
-} JSPromiseReactionData;
-
-static int js_create_resolving_functions(JSContext *ctx, JSValue *args,
-                                         JSValueConst promise);
-
-static void promise_reaction_data_free(JSRuntime *rt,
-                                       JSPromiseReactionData *rd)
-{
-    JS_FreeValueRT(rt, rd->resolving_funcs[0]);
-    JS_FreeValueRT(rt, rd->resolving_funcs[1]);
-    JS_FreeValueRT(rt, rd->handler);
-    js_free_rt(rt, rd);
-}
-
-static JSValue promise_reaction_job(JSContext *ctx, int argc,
-                                    JSValueConst *argv)
-{
-    JSValueConst handler, arg, func;
-    JSValue res, res2;
-    BOOL is_reject;
-
-    assert(argc == 5);
-    handler = argv[2];
-    is_reject = JS_ToBool(ctx, argv[3]);
-    arg = argv[4];
-#ifdef DUMP_PROMISE
-    printf("promise_reaction_job: is_reject=%d\n", is_reject);
-#endif
-
-    if (JS_IsUndefined(handler)) {
-        if (is_reject) {
-            res = JS_Throw(ctx, JS_DupValue(ctx, arg));
-        } else {
-            res = JS_DupValue(ctx, arg);
-        }
-    } else {
-        res = JS_Call(ctx, handler, JS_UNDEFINED, 1, &arg);
-    }
-    is_reject = JS_IsException(res);
-    if (is_reject)
-        res = JS_GetException(ctx);
-    func = argv[is_reject];
-    /* as an extension, we support undefined as value to avoid
-       creating a dummy promise in the 'await' implementation of async
-       functions */
-    if (!JS_IsUndefined(func)) {
-        res2 = JS_Call(ctx, func, JS_UNDEFINED,
-                       1, (JSValueConst *)&res);
-    } else {
-        res2 = JS_UNDEFINED;
-    }
-    JS_FreeValue(ctx, res);
-
-    return res2;
-}
-
-static void fulfill_or_reject_promise(JSContext *ctx, JSValueConst promise,
-                                      JSValueConst value, BOOL is_reject)
-{
-    JSPromiseData *s = JS_GetOpaque(promise, JS_CLASS_PROMISE);
-    struct list_head *el, *el1;
-    JSPromiseReactionData *rd;
-    JSValueConst args[5];
-
-    if (!s || s->promise_state != JS_PROMISE_PENDING)
-        return; /* should never happen */
-    set_value(ctx, &s->promise_result, JS_DupValue(ctx, value));
-    s->promise_state = JS_PROMISE_FULFILLED + is_reject;
-#ifdef DUMP_PROMISE
-    printf("fulfill_or_reject_promise: is_reject=%d\n", is_reject);
-#endif
-    /* Note: could call HostPromiseRejectTracker */
-    list_for_each_safe(el, el1, &s->promise_reactions[is_reject]) {
-        rd = list_entry(el, JSPromiseReactionData, link);
-        args[0] = rd->resolving_funcs[0];
-        args[1] = rd->resolving_funcs[1];
-        args[2] = rd->handler;
-        args[3] = JS_NewBool(ctx, is_reject);
-        args[4] = value;
-        JS_EnqueueJob(ctx, promise_reaction_job, 5, args);
-        list_del(&rd->link);
-        promise_reaction_data_free(ctx->rt, rd);
-    }
-
-    list_for_each_safe(el, el1, &s->promise_reactions[1 - is_reject]) {
-        rd = list_entry(el, JSPromiseReactionData, link);
-        list_del(&rd->link);
-        promise_reaction_data_free(ctx->rt, rd);
-    }
-}
-
-static void reject_promise(JSContext *ctx, JSValueConst promise,
-                           JSValueConst value)
-{
-    fulfill_or_reject_promise(ctx, promise, value, TRUE);
-}
-
-static JSValue js_promise_resolve_thenable_job(JSContext *ctx,
-                                               int argc, JSValueConst *argv)
-{
-    JSValueConst promise, thenable, then;
-    JSValue args[2], res;
-
-#ifdef DUMP_PROMISE
-    printf("js_promise_resolve_thenable_job\n");
-#endif
-    assert(argc == 3);
-    promise = argv[0];
-    thenable = argv[1];
-    then = argv[2];
-    if (js_create_resolving_functions(ctx, args, promise) < 0)
-        return JS_EXCEPTION;
-    res = JS_Call(ctx, then, thenable, 2, (JSValueConst *)args);
-    if (JS_IsException(res)) {
-        JSValue error = JS_GetException(ctx);
-        res = JS_Call(ctx, args[1], JS_UNDEFINED, 1, (JSValueConst *)&error);
-        JS_FreeValue(ctx, error);
-    }
-    JS_FreeValue(ctx, args[0]);
-    JS_FreeValue(ctx, args[1]);
-    return res;
-}
-
-static void js_promise_resolve_function_free_resolved(JSRuntime *rt,
-                                                      JSPromiseFunctionDataResolved *sr)
-{
-    if (--sr->ref_count == 0) {
-        js_free_rt(rt, sr);
-    }
-}
-
-static int js_create_resolving_functions(JSContext *ctx,
-                                         JSValue *resolving_funcs,
-                                         JSValueConst promise)
-
-{
-    JSValue obj;
-    JSPromiseFunctionData *s;
-    JSPromiseFunctionDataResolved *sr;
-    int i, ret;
-
-    sr = js_malloc(ctx, sizeof(*sr));
-    if (!sr)
-        return -1;
-    sr->ref_count = 1;
-    sr->already_resolved = FALSE; /* must be shared between the two functions */
-    ret = 0;
-    for(i = 0; i < 2; i++) {
-        obj = JS_NewObjectProtoClass(ctx, ctx->function_proto,
-                                     JS_CLASS_PROMISE_RESOLVE_FUNCTION + i);
-        if (JS_IsException(obj))
-            goto fail;
-        s = js_malloc(ctx, sizeof(*s));
-        if (!s) {
-            JS_FreeValue(ctx, obj);
-        fail:
-
-            if (i != 0)
-                JS_FreeValue(ctx, resolving_funcs[0]);
-            ret = -1;
-            break;
-        }
-        sr->ref_count++;
-        s->presolved = sr;
-        s->promise = JS_DupValue(ctx, promise);
-        JS_SetOpaque(obj, s);
-        JS_DefinePropertyValue(ctx, obj, JS_ATOM_length, JS_NewInt32(ctx, 1),
-                               JS_PROP_CONFIGURABLE);
-        resolving_funcs[i] = obj;
-    }
-    js_promise_resolve_function_free_resolved(ctx->rt, sr);
-    return ret;
-}
-
-static void js_promise_resolve_function_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSPromiseFunctionData *s = JS_VALUE_GET_OBJ(val)->u.promise_function_data;
-    if (s) {
-        js_promise_resolve_function_free_resolved(rt, s->presolved);
-        JS_FreeValueRT(rt, s->promise);
-        js_free_rt(rt, s);
-    }
-}
-
-static void js_promise_resolve_function_mark(JSRuntime *rt, JSValueConst val,
-                                             JS_MarkFunc *mark_func)
-{
-    JSPromiseFunctionData *s = JS_VALUE_GET_OBJ(val)->u.promise_function_data;
-    if (s) {
-        JS_MarkValue(rt, s->promise, mark_func);
-    }
-}
-
-static JSValue js_promise_resolve_function_call(JSContext *ctx,
-                                                JSValueConst func_obj,
-                                                JSValueConst this_val,
-                                                int argc, JSValueConst *argv)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(func_obj);
-    JSPromiseFunctionData *s;
-    JSValueConst resolution, args[3];
-    JSValue then;
-    BOOL is_reject;
-
-    s = p->u.promise_function_data;
-    if (!s || s->presolved->already_resolved)
-        return JS_UNDEFINED;
-    s->presolved->already_resolved = TRUE;
-    is_reject = p->class_id - JS_CLASS_PROMISE_RESOLVE_FUNCTION;
-    if (argc > 0)
-        resolution = argv[0];
-    else
-        resolution = JS_UNDEFINED;
-#ifdef DUMP_PROMISE
-    printf("js_promise_resolving_function_call: is_reject=%d resolution=", is_reject);
-    JS_DumpValue(ctx, resolution);
-    printf("\n");
-#endif
-    if (is_reject || !JS_IsObject(resolution)) {
-        goto done;
-    } else if (js_same_value(ctx, resolution, s->promise)) {
-        JS_ThrowTypeError(ctx, "promise self resolution");
-        goto fail_reject;
-    }
-    then = JS_GetProperty(ctx, resolution, JS_ATOM_then);
-    if (JS_IsException(then)) {
-        JSValue error;
-    fail_reject:
-        error = JS_GetException(ctx);
-        reject_promise(ctx, s->promise, error);
-        JS_FreeValue(ctx, error);
-    } else if (!JS_IsFunction(ctx, then)) {
-        JS_FreeValue(ctx, then);
-    done:
-        fulfill_or_reject_promise(ctx, s->promise, resolution, is_reject);
-    } else {
-        args[0] = s->promise;
-        args[1] = resolution;
-        args[2] = then;
-        JS_EnqueueJob(ctx, js_promise_resolve_thenable_job, 3, args);
-        JS_FreeValue(ctx, then);
-    }
-    return JS_UNDEFINED;
-}
-
-static void js_promise_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSPromiseData *s = JS_GetOpaque(val, JS_CLASS_PROMISE);
-    struct list_head *el, *el1;
-    int i;
-
-    if (!s)
-        return;
-    for(i = 0; i < 2; i++) {
-        list_for_each_safe(el, el1, &s->promise_reactions[i]) {
-            JSPromiseReactionData *rd =
-                list_entry(el, JSPromiseReactionData, link);
-            promise_reaction_data_free(rt, rd);
-        }
-    }
-    JS_FreeValueRT(rt, s->promise_result);
-    js_free_rt(rt, s);
-}
-
-static void js_promise_mark(JSRuntime *rt, JSValueConst val,
-                            JS_MarkFunc *mark_func)
-{
-    JSPromiseData *s = JS_GetOpaque(val, JS_CLASS_PROMISE);
-    struct list_head *el;
-    int i;
-
-    if (!s)
-        return;
-    for(i = 0; i < 2; i++) {
-        list_for_each(el, &s->promise_reactions[i]) {
-            JSPromiseReactionData *rd =
-                list_entry(el, JSPromiseReactionData, link);
-            JS_MarkValue(rt, rd->resolving_funcs[0], mark_func);
-            JS_MarkValue(rt, rd->resolving_funcs[1], mark_func);
-            JS_MarkValue(rt, rd->handler, mark_func);
-        }
-    }
-    JS_MarkValue(rt, s->promise_result, mark_func);
-}
-
-static JSValue js_promise_constructor(JSContext *ctx, JSValueConst new_target,
-                                      int argc, JSValueConst *argv)
-{
-    JSValueConst executor;
-    JSValue obj;
-    JSPromiseData *s;
-    JSValue args[2], ret;
-    int i;
-
-    executor = argv[0];
-    if (check_function(ctx, executor))
-        return JS_EXCEPTION;
-    obj = js_create_from_ctor(ctx, new_target, JS_CLASS_PROMISE);
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-    s = js_mallocz(ctx, sizeof(*s));
-    if (!s)
-        goto fail;
-    s->promise_state = JS_PROMISE_PENDING;
-    s->is_handled = FALSE;
-    for(i = 0; i < 2; i++)
-        init_list_head(&s->promise_reactions[i]);
-    s->promise_result = JS_UNDEFINED;
-    JS_SetOpaque(obj, s);
-    if (js_create_resolving_functions(ctx, args, obj))
-        goto fail;
-    ret = JS_Call(ctx, executor, JS_UNDEFINED, 2, (JSValueConst *)args);
-    if (JS_IsException(ret)) {
-        JSValue ret2, error;
-        error = JS_GetException(ctx);
-        ret2 = JS_Call(ctx, args[1], JS_UNDEFINED, 1, (JSValueConst *)&error);
-        JS_FreeValue(ctx, error);
-        if (JS_IsException(ret2))
-            goto fail1;
-        JS_FreeValue(ctx, ret2);
-    }
-    JS_FreeValue(ctx, ret);
-    JS_FreeValue(ctx, args[0]);
-    JS_FreeValue(ctx, args[1]);
-    return obj;
- fail1:
-    JS_FreeValue(ctx, args[0]);
-    JS_FreeValue(ctx, args[1]);
- fail:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_promise_executor(JSContext *ctx,
-                                   JSValueConst this_val,
-                                   int argc, JSValueConst *argv,
-                                   int magic, JSValue *func_data)
-{
-    int i;
-
-    for(i = 0; i < 2; i++) {
-        if (!JS_IsUndefined(func_data[i]))
-            return JS_ThrowTypeError(ctx, "resolving function already set");
-        func_data[i] = JS_DupValue(ctx, argv[i]);
-    }
-    return JS_UNDEFINED;
-}
-
-static JSValue js_promise_executor_new(JSContext *ctx)
-{
-    JSValueConst func_data[2];
-
-    func_data[0] = JS_UNDEFINED;
-    func_data[1] = JS_UNDEFINED;
-    return JS_NewCFunctionData(ctx, js_promise_executor, 2,
-                               0, 2, func_data);
-}
-
-static JSValue js_new_promise_capability(JSContext *ctx,
-                                         JSValue *resolving_funcs,
-                                         JSValueConst ctor)
-{
-    JSValue executor, result_promise;
-    JSCFunctionDataRecord *s;
-    int i;
-
-    executor = js_promise_executor_new(ctx);
-    if (JS_IsException(executor))
-        return executor;
-
-    if (JS_IsUndefined(ctor)) {
-        result_promise = js_promise_constructor(ctx, ctor, 1,
-                                                (JSValueConst *)&executor);
-    } else {
-        result_promise = JS_CallConstructor(ctx, ctor, 1,
-                                            (JSValueConst *)&executor);
-    }
-    if (JS_IsException(result_promise))
-        goto fail;
-    s = JS_GetOpaque(executor, JS_CLASS_C_FUNCTION_DATA);
-    for(i = 0; i < 2; i++) {
-        if (check_function(ctx, s->data[i]))
-            goto fail;
-    }
-    for(i = 0; i < 2; i++)
-        resolving_funcs[i] = JS_DupValue(ctx, s->data[i]);
-    JS_FreeValue(ctx, executor);
-    return result_promise;
- fail:
-    JS_FreeValue(ctx, executor);
-    JS_FreeValue(ctx, result_promise);
-    return JS_EXCEPTION;
-}
-
-JSValue JS_NewPromiseCapability(JSContext *ctx, JSValue *resolving_funcs)
-{
-    return js_new_promise_capability(ctx, resolving_funcs, JS_UNDEFINED);
-}
-
-static JSValue js_promise_resolve(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv, int magic)
-{
-    JSValue result_promise, resolving_funcs[2], ret;
-    BOOL is_reject = magic;
-
-    if (!JS_IsObject(this_val))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    if (!is_reject && JS_GetOpaque(argv[0], JS_CLASS_PROMISE)) {
-        JSValue ctor;
-        BOOL is_same;
-        ctor = JS_GetProperty(ctx, argv[0], JS_ATOM_constructor);
-        if (JS_IsException(ctor))
-            return ctor;
-        is_same = js_same_value(ctx, ctor, this_val);
-        JS_FreeValue(ctx, ctor);
-        if (is_same)
-            return JS_DupValue(ctx, argv[0]);
-    }
-    result_promise = js_new_promise_capability(ctx, resolving_funcs, this_val);
-    if (JS_IsException(result_promise))
-        return result_promise;
-    ret = JS_Call(ctx, resolving_funcs[is_reject], JS_UNDEFINED, 1, argv);
-    JS_FreeValue(ctx, resolving_funcs[0]);
-    JS_FreeValue(ctx, resolving_funcs[1]);
-    if (JS_IsException(ret)) {
-        JS_FreeValue(ctx, result_promise);
-        return ret;
-    }
-    JS_FreeValue(ctx, ret);
-    return result_promise;
-}
-
-#if 0
-static JSValue js_promise___newPromiseCapability(JSContext *ctx,
-                                                 JSValueConst this_val,
-                                                 int argc, JSValueConst *argv)
-{
-    JSValue result_promise, resolving_funcs[2], obj;
-    JSValueConst ctor;
-    ctor = argv[0];
-    if (!JS_IsObject(ctor))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    result_promise = js_new_promise_capability(ctx, resolving_funcs, ctor);
-    if (JS_IsException(result_promise))
-        return result_promise;
-    obj = JS_NewObject(ctx);
-    if (JS_IsException(obj)) {
-        JS_FreeValue(ctx, resolving_funcs[0]);
-        JS_FreeValue(ctx, resolving_funcs[1]);
-        JS_FreeValue(ctx, result_promise);
-        return JS_EXCEPTION;
-    }
-    JS_DefinePropertyValue(ctx, obj, JS_ATOM_promise, result_promise, JS_PROP_C_W_E);
-    JS_DefinePropertyValue(ctx, obj, JS_ATOM_resolve, resolving_funcs[0], JS_PROP_C_W_E);
-    JS_DefinePropertyValue(ctx, obj, JS_ATOM_reject, resolving_funcs[1], JS_PROP_C_W_E);
-    return obj;
-}
-#endif
-
-static __exception int remainingElementsCount_add(JSContext *ctx,
-                                                  JSValueConst resolve_element_env,
-                                                  int addend)
-{
-    JSValue val;
-    int remainingElementsCount;
-
-    val = JS_GetPropertyUint32(ctx, resolve_element_env, 0);
-    if (JS_IsException(val))
-        return -1;
-    if (JS_ToInt32Free(ctx, &remainingElementsCount, val))
-        return -1;
-    remainingElementsCount += addend;
-    if (JS_SetPropertyUint32(ctx, resolve_element_env, 0,
-                             JS_NewInt32(ctx, remainingElementsCount)) < 0)
-        return -1;
-    return (remainingElementsCount == 0);
-}
-
-static JSValue js_promise_all_resolve_element(JSContext *ctx,
-                                              JSValueConst this_val,
-                                              int argc, JSValueConst *argv,
-                                              int magic,
-                                              JSValue *func_data)
-{
-    int is_allSettled = magic & 1;
-    int is_reject = magic & 2;
-    BOOL alreadyCalled = JS_ToBool(ctx, func_data[0]);
-    JSValueConst values = func_data[2];
-    JSValueConst resolve = func_data[3];
-    JSValueConst resolve_element_env = func_data[4];
-    JSValue ret, obj;
-    int is_zero, index;
-    
-    if (JS_ToInt32(ctx, &index, func_data[1]))
-        return JS_EXCEPTION;
-    if (alreadyCalled)
-        return JS_UNDEFINED;
-    func_data[0] = JS_NewBool(ctx, TRUE);
-
-    if (is_allSettled) {
-        JSValue str;
-        
-        obj = JS_NewObject(ctx);
-        if (JS_IsException(obj))
-            return JS_EXCEPTION;
-        str = JS_NewString(ctx, is_reject ? "rejected" : "fulfilled");
-        if (JS_IsException(str))
-            goto fail1;
-        if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_status,
-                                   str,
-                                   JS_PROP_C_W_E) < 0)
-            goto fail1;
-        if (JS_DefinePropertyValue(ctx, obj,
-                                   is_reject ? JS_ATOM_reason : JS_ATOM_value,
-                                   JS_DupValue(ctx, argv[0]),
-                                   JS_PROP_C_W_E) < 0) {
-        fail1:
-            JS_FreeValue(ctx, obj);
-            return JS_EXCEPTION;
-        }
-    } else {
-        obj = JS_DupValue(ctx, argv[0]);
-    }
-    if (JS_DefinePropertyValueUint32(ctx, values, index,
-                                     obj, JS_PROP_C_W_E) < 0)
-        return JS_EXCEPTION;
-    
-    is_zero = remainingElementsCount_add(ctx, resolve_element_env, -1);
-    if (is_zero < 0)
-        return JS_EXCEPTION;
-    if (is_zero) {
-        ret = JS_Call(ctx, resolve, JS_UNDEFINED, 1, (JSValueConst *)&values);
-        if (JS_IsException(ret))
-            return ret;
-        JS_FreeValue(ctx, ret);
-    }
-    return JS_UNDEFINED;
-}
-
-/* magic = 0: Promise.all 1: Promise.allSettled */
-static JSValue js_promise_all(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv, int magic)
-{
-    JSValue result_promise, resolving_funcs[2], iter, item, next_promise, ret;
-    JSValue next_method = JS_UNDEFINED, values = JS_UNDEFINED;
-    JSValue resolve_element_env = JS_UNDEFINED, resolve_element, reject_element;
-    JSValue promise_resolve = JS_UNDEFINED;
-    JSValueConst then_args[2], resolve_element_data[5];
-    BOOL done, is_allSettled = magic;
-    int index, is_zero;
-    
-    if (!JS_IsObject(this_val))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    result_promise = js_new_promise_capability(ctx, resolving_funcs, this_val);
-    if (JS_IsException(result_promise))
-        return result_promise;
-    iter = JS_GetIterator(ctx, argv[0], FALSE);
-    if (JS_IsException(iter)) {
-        JSValue error;
-    fail_reject:
-        error = JS_GetException(ctx);
-        ret = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED, 1,
-                       (JSValueConst *)&error);
-        JS_FreeValue(ctx, error);
-        if (JS_IsException(ret))
-            goto fail;
-        JS_FreeValue(ctx, ret);
-    } else {
-        next_method = JS_GetProperty(ctx, iter, JS_ATOM_next);
-        if (JS_IsException(next_method))
-            goto fail_reject;
-        values = JS_NewArray(ctx);
-        if (JS_IsException(values))
-            goto fail_reject;
-        resolve_element_env = JS_NewArray(ctx);
-        if (JS_IsException(resolve_element_env))
-            goto fail_reject;
-        /* remainingElementsCount field */
-        if (JS_DefinePropertyValueUint32(ctx, resolve_element_env, 0,
-                                         JS_NewInt32(ctx, 1),
-                                         JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE | JS_PROP_WRITABLE) < 0)
-            goto fail_reject;
-        
-        promise_resolve = JS_GetProperty(ctx, this_val, JS_ATOM_resolve);
-        if (JS_IsException(promise_resolve) ||
-            check_function(ctx, promise_resolve))
-            goto fail_reject1;
-        
-        index = 0;
-        for(;;) {
-            /* XXX: conformance: should close the iterator if error on 'done'
-               access, but not on 'value' access */
-            item = JS_IteratorNext(ctx, iter, next_method, 0, NULL, &done);
-            if (JS_IsException(item))
-                goto fail_reject;
-            if (done)
-                break;
-            next_promise = JS_Call(ctx, promise_resolve, 
-                                   this_val, 1, (JSValueConst *)&item);
-            JS_FreeValue(ctx, item);
-            if (JS_IsException(next_promise)) {
-            fail_reject1:
-                JS_IteratorClose(ctx, iter, TRUE);
-                goto fail_reject;
-            }
-            resolve_element_data[0] = JS_NewBool(ctx, FALSE);
-            resolve_element_data[1] = (JSValueConst)JS_NewInt32(ctx, index);
-            resolve_element_data[2] = values;
-            resolve_element_data[3] = resolving_funcs[0];
-            resolve_element_data[4] = resolve_element_env;
-            resolve_element =
-                JS_NewCFunctionData(ctx, js_promise_all_resolve_element, 1,
-                                    is_allSettled, 5, resolve_element_data);
-            if (JS_IsException(resolve_element)) {
-                JS_FreeValue(ctx, next_promise);
-                goto fail_reject1;
-            }
-            
-            if (is_allSettled) {
-                reject_element =
-                    JS_NewCFunctionData(ctx, js_promise_all_resolve_element, 1,
-                                        is_allSettled | 2, 5, resolve_element_data);
-                if (JS_IsException(reject_element)) {
-                    JS_FreeValue(ctx, next_promise);
-                    goto fail_reject1;
-                }
-            } else {
-                reject_element = JS_DupValue(ctx, resolving_funcs[1]);
-            }
-
-            if (remainingElementsCount_add(ctx, resolve_element_env, 1) < 0) {
-                JS_FreeValue(ctx, next_promise);
-                JS_FreeValue(ctx, resolve_element);
-                JS_FreeValue(ctx, reject_element);
-                goto fail_reject1;
-            }
-
-            then_args[0] = resolve_element;
-            then_args[1] = reject_element;
-            ret = JS_InvokeFree(ctx, next_promise, JS_ATOM_then, 2, then_args);
-            JS_FreeValue(ctx, resolve_element);
-            JS_FreeValue(ctx, reject_element);
-            if (check_exception_free(ctx, ret))
-                goto fail_reject1;
-            index++;
-        }
-
-        is_zero = remainingElementsCount_add(ctx, resolve_element_env, -1);
-        if (is_zero < 0)
-            goto fail_reject;
-        if (is_zero) {
-            ret = JS_Call(ctx, resolving_funcs[0], JS_UNDEFINED,
-                          1, (JSValueConst *)&values);
-            if (check_exception_free(ctx, ret))
-                goto fail_reject;
-        }
-    }
- done:
-    JS_FreeValue(ctx, promise_resolve);
-    JS_FreeValue(ctx, resolve_element_env);
-    JS_FreeValue(ctx, values);
-    JS_FreeValue(ctx, next_method);
-    JS_FreeValue(ctx, iter);
-    JS_FreeValue(ctx, resolving_funcs[0]);
-    JS_FreeValue(ctx, resolving_funcs[1]);
-    return result_promise;
- fail:
-    JS_FreeValue(ctx, result_promise);
-    result_promise = JS_EXCEPTION;
-    goto done;
-}
-
-static JSValue js_promise_race(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv)
-{
-    JSValue result_promise, resolving_funcs[2], iter, item, next_promise, ret;
-    JSValue next_method = JS_UNDEFINED;
-    JSValue promise_resolve = JS_UNDEFINED;
-    BOOL done;
-
-    if (!JS_IsObject(this_val))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-    result_promise = js_new_promise_capability(ctx, resolving_funcs, this_val);
-    if (JS_IsException(result_promise))
-        return result_promise;
-    iter = JS_GetIterator(ctx, argv[0], FALSE);
-    if (JS_IsException(iter)) {
-        JSValue error;
-    fail_reject:
-        error = JS_GetException(ctx);
-        ret = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED, 1,
-                       (JSValueConst *)&error);
-        JS_FreeValue(ctx, error);
-        if (JS_IsException(ret))
-            goto fail;
-        JS_FreeValue(ctx, ret);
-    } else {
-        next_method = JS_GetProperty(ctx, iter, JS_ATOM_next);
-        if (JS_IsException(next_method))
-            goto fail_reject;
-
-        promise_resolve = JS_GetProperty(ctx, this_val, JS_ATOM_resolve);
-        if (JS_IsException(promise_resolve) ||
-            check_function(ctx, promise_resolve))
-            goto fail_reject1;
-
-        for(;;) {
-            /* XXX: conformance: should close the iterator if error on 'done'
-               access, but not on 'value' access */
-            item = JS_IteratorNext(ctx, iter, next_method, 0, NULL, &done);
-            if (JS_IsException(item))
-                goto fail_reject;
-            if (done)
-                break;
-            next_promise = JS_Call(ctx, promise_resolve,
-                                   this_val, 1, (JSValueConst *)&item);
-            JS_FreeValue(ctx, item);
-            if (JS_IsException(next_promise)) {
-            fail_reject1:
-                JS_IteratorClose(ctx, iter, TRUE);
-                goto fail_reject;
-            }
-            ret = JS_InvokeFree(ctx, next_promise, JS_ATOM_then, 2,
-                                (JSValueConst *)resolving_funcs);
-            if (check_exception_free(ctx, ret))
-                goto fail_reject1;
-        }
-    }
- done:
-    JS_FreeValue(ctx, promise_resolve);
-    JS_FreeValue(ctx, next_method);
-    JS_FreeValue(ctx, iter);
-    JS_FreeValue(ctx, resolving_funcs[0]);
-    JS_FreeValue(ctx, resolving_funcs[1]);
-    return result_promise;
- fail:
-    //JS_FreeValue(ctx, next_method); // why not???
-    JS_FreeValue(ctx, result_promise);
-    result_promise = JS_EXCEPTION;
-    goto done;
-}
-
-static __exception int perform_promise_then(JSContext *ctx,
-                                            JSValueConst promise,
-                                            JSValueConst *resolve_reject,
-                                            JSValueConst *cap_resolving_funcs)
-{
-    JSPromiseData *s = JS_GetOpaque(promise, JS_CLASS_PROMISE);
-    JSPromiseReactionData *rd_array[2], *rd;
-    int i, j;
-
-    rd_array[0] = NULL;
-    rd_array[1] = NULL;
-    for(i = 0; i < 2; i++) {
-        JSValueConst handler;
-        rd = js_mallocz(ctx, sizeof(*rd));
-        if (!rd) {
-            if (i == 1)
-                promise_reaction_data_free(ctx->rt, rd_array[0]);
-            return -1;
-        }
-        for(j = 0; j < 2; j++)
-            rd->resolving_funcs[j] = JS_DupValue(ctx, cap_resolving_funcs[j]);
-        handler = resolve_reject[i];
-        if (!JS_IsFunction(ctx, handler))
-            handler = JS_UNDEFINED;
-        rd->handler = JS_DupValue(ctx, handler);
-        rd_array[i] = rd;
-    }
-
-    if (s->promise_state == JS_PROMISE_PENDING) {
-        for(i = 0; i < 2; i++)
-            list_add_tail(&rd_array[i]->link, &s->promise_reactions[i]);
-    } else {
-        JSValueConst args[5];
-        i = s->promise_state - JS_PROMISE_FULFILLED;
-        rd = rd_array[i];
-        args[0] = rd->resolving_funcs[0];
-        args[1] = rd->resolving_funcs[1];
-        args[2] = rd->handler;
-        args[3] = JS_NewBool(ctx, i);
-        args[4] = s->promise_result;
-        JS_EnqueueJob(ctx, promise_reaction_job, 5, args);
-        for(i = 0; i < 2; i++)
-            promise_reaction_data_free(ctx->rt, rd_array[i]);
-    }
-    s->is_handled = TRUE;
-    return 0;
-}
-
-static JSValue js_promise_then(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv)
-{
-    JSValue ctor, result_promise, resolving_funcs[2];
-    JSPromiseData *s;
-    int i, ret;
-
-    s = JS_GetOpaque2(ctx, this_val, JS_CLASS_PROMISE);
-    if (!s)
-        return JS_EXCEPTION;
-
-    ctor = JS_SpeciesConstructor(ctx, this_val, JS_UNDEFINED);
-    if (JS_IsException(ctor))
-        return ctor;
-    result_promise = js_new_promise_capability(ctx, resolving_funcs, ctor);
-    JS_FreeValue(ctx, ctor);
-    if (JS_IsException(result_promise))
-        return result_promise;
-    ret = perform_promise_then(ctx, this_val, argv,
-                               (JSValueConst *)resolving_funcs);
-    for(i = 0; i < 2; i++)
-        JS_FreeValue(ctx, resolving_funcs[i]);
-    if (ret) {
-        JS_FreeValue(ctx, result_promise);
-        return JS_EXCEPTION;
-    }
-    return result_promise;
-}
-
-static JSValue js_promise_catch(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSValueConst args[2];
-    args[0] = JS_UNDEFINED;
-    args[1] = argv[0];
-    return JS_Invoke(ctx, this_val, JS_ATOM_then, 2, args);
-}
-
-static JSValue js_promise_finally_value_thunk(JSContext *ctx, JSValueConst this_val,
-                                              int argc, JSValueConst *argv,
-                                              int magic, JSValue *func_data)
-{
-    return JS_DupValue(ctx, func_data[0]);
-}
-
-static JSValue js_promise_finally_thrower(JSContext *ctx, JSValueConst this_val,
-                                          int argc, JSValueConst *argv,
-                                          int magic, JSValue *func_data)
-{
-    return JS_Throw(ctx, JS_DupValue(ctx, func_data[0]));
-}
-
-static JSValue js_promise_then_finally_func(JSContext *ctx, JSValueConst this_val,
-                                            int argc, JSValueConst *argv,
-                                            int magic, JSValue *func_data)
-{
-    JSValueConst ctor = func_data[0];
-    JSValueConst onFinally = func_data[1];
-    JSValue res, promise, resolving_funcs[2], ret, then_func;
-
-    res = JS_Call(ctx, onFinally, JS_UNDEFINED, 0, NULL);
-    if (JS_IsException(res))
-        return res;
-    promise = js_new_promise_capability(ctx, resolving_funcs, ctor);
-    if (JS_IsException(promise)) {
-        JS_FreeValue(ctx, res);
-        return JS_EXCEPTION;
-    }
-    ret = JS_Call(ctx, resolving_funcs[0], JS_UNDEFINED,
-                  1, (JSValueConst*)&res);
-    JS_FreeValue(ctx, res);
-    JS_FreeValue(ctx, resolving_funcs[0]);
-    JS_FreeValue(ctx, resolving_funcs[1]);
-    if (JS_IsException(ret)) {
-        JS_FreeValue(ctx, promise);
-        return ret;
-    }
-    JS_FreeValue(ctx, ret);
-    if (magic == 0) {
-        then_func = JS_NewCFunctionData(ctx, js_promise_finally_value_thunk, 1,
-                                        0, 1, argv);
-    } else {
-        then_func = JS_NewCFunctionData(ctx, js_promise_finally_thrower, 1,
-                                        0, 1, argv);
-    }
-    if (JS_IsException(then_func)) {
-        JS_FreeValue(ctx, promise);
-        return then_func;
-    }
-    ret = JS_InvokeFree(ctx, promise, JS_ATOM_then, 1, (JSValueConst *)&then_func);
-    JS_FreeValue(ctx, then_func);
-    return ret;
-}
-
-static JSValue js_promise_finally(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    JSValueConst onFinally = argv[0];
-    JSValue ctor, ret;
-    JSValue then_funcs[2];
-    JSValueConst func_data[2];
-    int i;
-
-    ctor = JS_SpeciesConstructor(ctx, this_val, JS_UNDEFINED);
-    if (JS_IsException(ctor))
-        return ctor;
-    if (!JS_IsFunction(ctx, onFinally)) {
-        then_funcs[0] = JS_DupValue(ctx, onFinally);
-        then_funcs[1] = JS_DupValue(ctx, onFinally);
-    } else {
-        func_data[0] = ctor;
-        func_data[1] = onFinally;
-        for(i = 0; i < 2; i++) {
-            then_funcs[i] = JS_NewCFunctionData(ctx, js_promise_then_finally_func, 1, i, 2, func_data);
-            if (JS_IsException(then_funcs[i])) {
-                if (i == 1)
-                    JS_FreeValue(ctx, then_funcs[0]);
-                JS_FreeValue(ctx, ctor);
-                return JS_EXCEPTION;
-            }
-        }
-    }
-    JS_FreeValue(ctx, ctor);
-    ret = JS_Invoke(ctx, this_val, JS_ATOM_then, 2, (JSValueConst *)then_funcs);
-    JS_FreeValue(ctx, then_funcs[0]);
-    JS_FreeValue(ctx, then_funcs[1]);
-    return ret;
-}
-
-static const JSCFunctionListEntry js_promise_funcs[] = {
-    JS_CFUNC_MAGIC_DEF("resolve", 1, js_promise_resolve, 0 ),
-    JS_CFUNC_MAGIC_DEF("reject", 1, js_promise_resolve, 1 ),
-    JS_CFUNC_MAGIC_DEF("all", 1, js_promise_all, 0 ),
-    JS_CFUNC_MAGIC_DEF("allSettled", 1, js_promise_all, 1 ),
-    JS_CFUNC_DEF("race", 1, js_promise_race ),
-    //JS_CFUNC_DEF("__newPromiseCapability", 1, js_promise___newPromiseCapability ),
-    JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL),
-};
-
-static const JSCFunctionListEntry js_promise_proto_funcs[] = {
-    JS_CFUNC_DEF("then", 2, js_promise_then ),
-    JS_CFUNC_DEF("catch", 1, js_promise_catch ),
-    JS_CFUNC_DEF("finally", 1, js_promise_finally ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Promise", JS_PROP_CONFIGURABLE ),
-};
-
-/* AsyncFunction */
-static const JSCFunctionListEntry js_async_function_proto_funcs[] = {
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "AsyncFunction", JS_PROP_CONFIGURABLE ),
-};
-
-static JSValue js_async_from_async_iterator_unwrap(JSContext *ctx,
-                                                   JSValueConst this_val,
-                                                   int argc, JSValueConst *argv,
-                                                   int magic, JSValue *func_data)
-{
-    return js_create_iterator_result(ctx, JS_DupValue(ctx, func_data[0]),
-                                     JS_ToBool(ctx, func_data[1]));
-}
-
-static JSValue js_async_from_async_iterator_unwrap_func_create(JSContext *ctx,
-                                                JSValueConst value,
-                                                BOOL done)
-{
-    JSValueConst func_data[2];
-
-    func_data[0] = value;
-    func_data[1] = (JSValueConst)JS_NewBool(ctx, done);
-    return JS_NewCFunctionData(ctx, js_async_from_async_iterator_unwrap,
-                               0, 0, 2, func_data);
-}
-
-/* AsyncIteratorPrototype */
-
-static const JSCFunctionListEntry js_async_iterator_proto_funcs[] = {
-    JS_CFUNC_DEF("[Symbol.asyncIterator]", 0, js_iterator_proto_iterator ),
-};
-
-/* AsyncFromSyncIteratorPrototype */
-
-typedef struct JSAsyncFromSyncIteratorData {
-    JSValue sync_iter;
-    JSValue next_method;
-} JSAsyncFromSyncIteratorData;
-
-static void js_async_from_sync_iterator_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSAsyncFromSyncIteratorData *s =
-        JS_GetOpaque(val, JS_CLASS_ASYNC_FROM_SYNC_ITERATOR);
-    if (s) {
-        JS_FreeValueRT(rt, s->sync_iter);
-        JS_FreeValueRT(rt, s->next_method);
-        js_free_rt(rt, s);
-    }
-}
-
-static void js_async_from_sync_iterator_mark(JSRuntime *rt, JSValueConst val,
-                                             JS_MarkFunc *mark_func)
-{
-    JSAsyncFromSyncIteratorData *s =
-        JS_GetOpaque(val, JS_CLASS_ASYNC_FROM_SYNC_ITERATOR);
-    if (s) {
-        JS_MarkValue(rt, s->sync_iter, mark_func);
-        JS_MarkValue(rt, s->next_method, mark_func);
-    }
-}
-
-static JSValue JS_CreateAsyncFromSyncIterator(JSContext *ctx,
-                                              JSValueConst sync_iter)
-{
-    JSValue async_iter, next_method;
-    JSAsyncFromSyncIteratorData *s;
-
-    next_method = JS_GetProperty(ctx, sync_iter, JS_ATOM_next);
-    if (JS_IsException(next_method))
-        return JS_EXCEPTION;
-    async_iter = JS_NewObjectClass(ctx, JS_CLASS_ASYNC_FROM_SYNC_ITERATOR);
-    if (JS_IsException(async_iter)) {
-        JS_FreeValue(ctx, next_method);
-        return async_iter;
-    }
-    s = js_mallocz(ctx, sizeof(*s));
-    if (!s) {
-        JS_FreeValue(ctx, async_iter);
-        JS_FreeValue(ctx, next_method);
-        return JS_EXCEPTION;
-    }
-    s->sync_iter = JS_DupValue(ctx, sync_iter);
-    s->next_method = next_method;
-    JS_SetOpaque(async_iter, s);
-    return async_iter;
-}
-
-static JSValue js_async_from_sync_iterator_next(JSContext *ctx, JSValueConst this_val,
-                                                int argc, JSValueConst *argv,
-                                                int magic)
-{
-    JSValue promise, resolving_funcs[2], value, err, method;
-    JSAsyncFromSyncIteratorData *s;
-    int done;
-    int is_reject;
-
-    promise = JS_NewPromiseCapability(ctx, resolving_funcs);
-    if (JS_IsException(promise))
-        return JS_EXCEPTION;
-    s = JS_GetOpaque(this_val, JS_CLASS_ASYNC_FROM_SYNC_ITERATOR);
-    if (!s) {
-        JS_ThrowTypeError(ctx, "not an Async-from-Sync Iterator");
-        goto reject;
-    }
-
-    if (magic == GEN_MAGIC_NEXT) {
-        method = JS_DupValue(ctx, s->next_method);
-    } else {
-        method = JS_GetProperty(ctx, s->sync_iter,
-                                magic == GEN_MAGIC_RETURN ? JS_ATOM_return :
-                                JS_ATOM_throw);
-        if (JS_IsException(method))
-            goto reject;
-        if (JS_IsUndefined(method) || JS_IsNull(method)) {
-            if (magic == GEN_MAGIC_RETURN) {
-                err = js_create_iterator_result(ctx, JS_DupValue(ctx, argv[0]), TRUE);
-                is_reject = 0;
-            } else {
-                err = JS_DupValue(ctx, argv[0]);
-                is_reject = 1;
-            }
-            goto done_resolve;
-        }
-    }
-    value = JS_IteratorNext2(ctx, s->sync_iter, method, 1, argv, &done);
-    JS_FreeValue(ctx, method);
-    if (JS_IsException(value))
-        goto reject;
-    if (done == 2) {
-        JSValue obj = value;
-        value = JS_IteratorGetCompleteValue(ctx, obj, &done);
-        JS_FreeValue(ctx, obj);
-        if (JS_IsException(value))
-            goto reject;
-    }
-
-    if (JS_IsException(value)) {
-        JSValue res2;
-    reject:
-        err = JS_GetException(ctx);
-        is_reject = 1;
-    done_resolve:
-        res2 = JS_Call(ctx, resolving_funcs[is_reject], JS_UNDEFINED,
-                       1, (JSValueConst *)&err);
-        JS_FreeValue(ctx, err);
-        JS_FreeValue(ctx, res2);
-        JS_FreeValue(ctx, resolving_funcs[0]);
-        JS_FreeValue(ctx, resolving_funcs[1]);
-        return promise;
-    }
-    {
-        JSValue value_wrapper_promise, resolve_reject[2];
-        int res;
-
-        value_wrapper_promise = js_promise_resolve(ctx, ctx->promise_ctor,
-                                                   1, (JSValueConst *)&value, 0);
-        if (JS_IsException(value_wrapper_promise)) {
-            JS_FreeValue(ctx, value);
-            goto reject;
-        }
-
-        resolve_reject[0] = js_async_from_async_iterator_unwrap_func_create(ctx, value, done);
-        if (JS_IsException(resolve_reject[0])) {
-            JS_FreeValue(ctx, value_wrapper_promise);
-            goto fail;
-        }
-        JS_FreeValue(ctx, value);
-        resolve_reject[1] = JS_UNDEFINED;
-
-        res = perform_promise_then(ctx, value_wrapper_promise,
-                                   (JSValueConst *)resolve_reject,
-                                   (JSValueConst *)resolving_funcs);
-        JS_FreeValue(ctx, resolve_reject[0]);
-        JS_FreeValue(ctx, value_wrapper_promise);
-        JS_FreeValue(ctx, resolving_funcs[0]);
-        JS_FreeValue(ctx, resolving_funcs[1]);
-        if (res) {
-            JS_FreeValue(ctx, promise);
-            return JS_EXCEPTION;
-        }
-    }
-    return promise;
- fail:
-    JS_FreeValue(ctx, value);
-    JS_FreeValue(ctx, resolving_funcs[0]);
-    JS_FreeValue(ctx, resolving_funcs[1]);
-    JS_FreeValue(ctx, promise);
-    return JS_EXCEPTION;
-}
-
-static const JSCFunctionListEntry js_async_from_sync_iterator_proto_funcs[] = {
-    JS_CFUNC_MAGIC_DEF("next", 1, js_async_from_sync_iterator_next, GEN_MAGIC_NEXT ),
-    JS_CFUNC_MAGIC_DEF("return", 1, js_async_from_sync_iterator_next, GEN_MAGIC_RETURN ),
-    JS_CFUNC_MAGIC_DEF("throw", 1, js_async_from_sync_iterator_next, GEN_MAGIC_THROW ),
-};
-
-/* AsyncGeneratorFunction */
-
-static const JSCFunctionListEntry js_async_generator_function_proto_funcs[] = {
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "AsyncGeneratorFunction", JS_PROP_CONFIGURABLE ),
-};
-
-/* AsyncGenerator prototype */
-
-static const JSCFunctionListEntry js_async_generator_proto_funcs[] = {
-    JS_CFUNC_MAGIC_DEF("next", 1, js_async_generator_next, GEN_MAGIC_NEXT ),
-    JS_CFUNC_MAGIC_DEF("return", 1, js_async_generator_next, GEN_MAGIC_RETURN ),
-    JS_CFUNC_MAGIC_DEF("throw", 1, js_async_generator_next, GEN_MAGIC_THROW ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "AsyncGenerator", JS_PROP_CONFIGURABLE ),
-};
-
-static JSClassShortDef const js_async_class_def[] = {
-    { JS_ATOM_Promise, js_promise_finalizer, js_promise_mark },                      /* JS_CLASS_PROMISE */
-    { JS_ATOM_PromiseResolveFunction, js_promise_resolve_function_finalizer, js_promise_resolve_function_mark }, /* JS_CLASS_PROMISE_RESOLVE_FUNCTION */
-    { JS_ATOM_PromiseRejectFunction, js_promise_resolve_function_finalizer, js_promise_resolve_function_mark }, /* JS_CLASS_PROMISE_REJECT_FUNCTION */
-    { JS_ATOM_AsyncFunction, js_bytecode_function_finalizer, js_bytecode_function_mark },  /* JS_CLASS_ASYNC_FUNCTION */
-    { JS_ATOM_AsyncFunctionResolve, js_async_function_resolve_finalizer, js_async_function_resolve_mark }, /* JS_CLASS_ASYNC_FUNCTION_RESOLVE */
-    { JS_ATOM_AsyncFunctionReject, js_async_function_resolve_finalizer, js_async_function_resolve_mark }, /* JS_CLASS_ASYNC_FUNCTION_REJECT */
-    { JS_ATOM_empty_string, js_async_from_sync_iterator_finalizer, js_async_from_sync_iterator_mark }, /* JS_CLASS_ASYNC_FROM_SYNC_ITERATOR */
-    { JS_ATOM_AsyncGeneratorFunction, js_bytecode_function_finalizer, js_bytecode_function_mark },  /* JS_CLASS_ASYNC_GENERATOR_FUNCTION */
-    { JS_ATOM_AsyncGenerator, js_async_generator_finalizer, js_async_generator_mark },  /* JS_CLASS_ASYNC_GENERATOR */
-};
-
-void JS_AddIntrinsicPromise(JSContext *ctx)
-{
-    JSRuntime *rt = ctx->rt;
-    JSValue obj1;
-
-    if (!JS_IsRegisteredClass(rt, JS_CLASS_PROMISE)) {
-        init_class_range(rt, js_async_class_def, JS_CLASS_PROMISE,
-                         countof(js_async_class_def));
-        rt->class_array[JS_CLASS_PROMISE_RESOLVE_FUNCTION].call = js_promise_resolve_function_call;
-        rt->class_array[JS_CLASS_PROMISE_REJECT_FUNCTION].call = js_promise_resolve_function_call;
-        rt->class_array[JS_CLASS_ASYNC_FUNCTION].call = js_async_function_call;
-        rt->class_array[JS_CLASS_ASYNC_FUNCTION_RESOLVE].call = js_async_function_resolve_call;
-        rt->class_array[JS_CLASS_ASYNC_FUNCTION_REJECT].call = js_async_function_resolve_call;
-        rt->class_array[JS_CLASS_ASYNC_GENERATOR_FUNCTION].call = js_async_generator_function_call;
-    }
-
-    /* Promise */
-    ctx->class_proto[JS_CLASS_PROMISE] = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_PROMISE],
-                               js_promise_proto_funcs,
-                               countof(js_promise_proto_funcs));
-    obj1 = JS_NewCFunction2(ctx, js_promise_constructor, "Promise", 1,
-                            JS_CFUNC_constructor, 0);
-    ctx->promise_ctor = JS_DupValue(ctx, obj1);
-    JS_SetPropertyFunctionList(ctx, obj1,
-                               js_promise_funcs,
-                               countof(js_promise_funcs));
-    JS_NewGlobalCConstructor2(ctx, obj1, "Promise",
-                              ctx->class_proto[JS_CLASS_PROMISE]);
-
-    /* AsyncFunction */
-    ctx->class_proto[JS_CLASS_ASYNC_FUNCTION] = JS_NewObjectProto(ctx, ctx->function_proto);
-    obj1 = JS_NewCFunction3(ctx, (JSCFunction *)js_function_constructor,
-                            "AsyncFunction", 1,
-                            JS_CFUNC_constructor_or_func_magic, JS_FUNC_ASYNC,
-                            ctx->function_ctor);
-    JS_SetPropertyFunctionList(ctx,
-                               ctx->class_proto[JS_CLASS_ASYNC_FUNCTION],
-                               js_async_function_proto_funcs,
-                               countof(js_async_function_proto_funcs));
-    JS_SetConstructor2(ctx, obj1, ctx->class_proto[JS_CLASS_ASYNC_FUNCTION],
-                       0, JS_PROP_CONFIGURABLE);
-    JS_FreeValue(ctx, obj1);
-
-    /* AsyncIteratorPrototype */
-    ctx->async_iterator_proto = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->async_iterator_proto,
-                               js_async_iterator_proto_funcs,
-                               countof(js_async_iterator_proto_funcs));
-
-    /* AsyncFromSyncIteratorPrototype */
-    ctx->class_proto[JS_CLASS_ASYNC_FROM_SYNC_ITERATOR] =
-        JS_NewObjectProto(ctx, ctx->async_iterator_proto);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_ASYNC_FROM_SYNC_ITERATOR],
-                               js_async_from_sync_iterator_proto_funcs,
-                               countof(js_async_from_sync_iterator_proto_funcs));
-
-    /* AsyncGeneratorPrototype */
-    ctx->class_proto[JS_CLASS_ASYNC_GENERATOR] =
-        JS_NewObjectProto(ctx, ctx->async_iterator_proto);
-    JS_SetPropertyFunctionList(ctx,
-                               ctx->class_proto[JS_CLASS_ASYNC_GENERATOR],
-                               js_async_generator_proto_funcs,
-                               countof(js_async_generator_proto_funcs));
-
-    /* AsyncGeneratorFunction */
-    ctx->class_proto[JS_CLASS_ASYNC_GENERATOR_FUNCTION] =
-        JS_NewObjectProto(ctx, ctx->function_proto);
-    obj1 = JS_NewCFunction3(ctx, (JSCFunction *)js_function_constructor,
-                            "AsyncGeneratorFunction", 1,
-                            JS_CFUNC_constructor_or_func_magic,
-                            JS_FUNC_ASYNC_GENERATOR,
-                            ctx->function_ctor);
-    JS_SetPropertyFunctionList(ctx,
-                               ctx->class_proto[JS_CLASS_ASYNC_GENERATOR_FUNCTION],
-                               js_async_generator_function_proto_funcs,
-                               countof(js_async_generator_function_proto_funcs));
-    JS_SetConstructor2(ctx, ctx->class_proto[JS_CLASS_ASYNC_GENERATOR_FUNCTION],
-                       ctx->class_proto[JS_CLASS_ASYNC_GENERATOR],
-                       JS_PROP_CONFIGURABLE, JS_PROP_CONFIGURABLE);
-    JS_SetConstructor2(ctx, obj1, ctx->class_proto[JS_CLASS_ASYNC_GENERATOR_FUNCTION],
-                       0, JS_PROP_CONFIGURABLE);
-    JS_FreeValue(ctx, obj1);
-}
-
-/* URI handling */
-
-static int string_get_hex(JSString *p, int k, int n) {
-    int c = 0, h;
-    while (n-- > 0) {
-        if ((h = from_hex(string_get(p, k++))) < 0)
-            return -1;
-        c = (c << 4) | h;
-    }
-    return c;
-}
-
-static int isURIReserved(int c) {
-    return c < 0x100 && memchr(";/?:@&=+$,#", c, sizeof(";/?:@&=+$,#") - 1) != NULL;
-}
-
-static int __attribute__((format(printf, 2, 3))) js_throw_URIError(JSContext *ctx, const char *fmt, ...)
-{
-    va_list ap;
-
-    va_start(ap, fmt);
-    JS_ThrowError(ctx, JS_URI_ERROR, fmt, ap);
-    va_end(ap);
-    return -1;
-}
-
-static int hex_decode(JSContext *ctx, JSString *p, int k) {
-    int c;
-
-    if (k >= p->len || string_get(p, k) != '%')
-        return js_throw_URIError(ctx, "expecting %%");
-    if (k + 2 >= p->len || (c = string_get_hex(p, k + 1, 2)) < 0)
-        return js_throw_URIError(ctx, "expecting hex digit");
-
-    return c;
-}
-
-static JSValue js_global_decodeURI(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv, int isComponent)
-{
-    JSValue str;
-    StringBuffer b_s, *b = &b_s;
-    JSString *p;
-    int k, c, c1, n, c_min;
-
-    str = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(str))
-        return str;
-
-    string_buffer_init(ctx, b, 0);
-
-    p = JS_VALUE_GET_STRING(str);
-    for (k = 0; k < p->len;) {
-        c = string_get(p, k);
-        if (c == '%') {
-            c = hex_decode(ctx, p, k);
-            if (c < 0)
-                goto fail;
-            k += 3;
-            if (c < 0x80) {
-                if (!isComponent && isURIReserved(c)) {
-                    c = '%';
-                    k -= 2;
-                }
-            } else {
-                /* Decode URI-encoded UTF-8 sequence */
-                if (c >= 0xc0 && c <= 0xdf) {
-                    n = 1;
-                    c_min = 0x80;
-                    c &= 0x1f;
-                } else if (c >= 0xe0 && c <= 0xef) {
-                    n = 2;
-                    c_min = 0x800;
-                    c &= 0xf;
-                } else if (c >= 0xf0 && c <= 0xf7) {
-                    n = 3;
-                    c_min = 0x10000;
-                    c &= 0x7;
-                } else {
-                    n = 0;
-                    c_min = 1;
-                    c = 0;
-                }
-                while (n-- > 0) {
-                    c1 = hex_decode(ctx, p, k);
-                    if (c1 < 0)
-                        goto fail;
-                    k += 3;
-                    if ((c1 & 0xc0) != 0x80) {
-                        c = 0;
-                        break;
-                    }
-                    c = (c << 6) | (c1 & 0x3f);
-                }
-                if (c < c_min || c > 0x10FFFF) {
-                    js_throw_URIError(ctx, "malformed UTF-8");
-                    goto fail;
-                }
-            }
-        } else {
-            k++;
-        }
-        string_buffer_putc(b, c);
-    }
-    JS_FreeValue(ctx, str);
-    return string_buffer_end(b);
-
-fail:
-    JS_FreeValue(ctx, str);
-    string_buffer_free(b);
-    return JS_EXCEPTION;
-}
-
-static int isUnescaped(int c) {
-    static char const unescaped_chars[] =
-        "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-        "abcdefghijklmnopqrstuvwxyz"
-        "0123456789"
-        "@*_+-./";
-    return c < 0x100 &&
-        memchr(unescaped_chars, c, sizeof(unescaped_chars) - 1);
-}
-
-static int isURIUnescaped(int c, int isComponent) {
-    return c < 0x100 &&
-        ((c >= 0x61 && c <= 0x7a) ||
-         (c >= 0x41 && c <= 0x5a) ||
-         (c >= 0x30 && c <= 0x39) ||
-         memchr("-_.!~*'()", c, sizeof("-_.!~*'()") - 1) != NULL ||
-         (!isComponent && isURIReserved(c)));
-}
-
-static int encodeURI_hex(StringBuffer *b, int c) {
-    uint8_t buf[6];
-    int n = 0;
-    const char *hex = "0123456789ABCDEF";
-
-    buf[n++] = '%';
-    if (c >= 256) {
-        buf[n++] = 'u';
-        buf[n++] = hex[(c >> 12) & 15];
-        buf[n++] = hex[(c >>  8) & 15];
-    }
-    buf[n++] = hex[(c >> 4) & 15];
-    buf[n++] = hex[(c >> 0) & 15];
-    return string_buffer_write8(b, buf, n);
-}
-
-static JSValue js_global_encodeURI(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv,
-                                   int isComponent)
-{
-    JSValue str;
-    StringBuffer b_s, *b = &b_s;
-    JSString *p;
-    int k, c, c1;
-
-    str = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(str))
-        return str;
-
-    p = JS_VALUE_GET_STRING(str);
-    string_buffer_init(ctx, b, p->len);
-    for (k = 0; k < p->len;) {
-        c = string_get(p, k);
-        k++;
-        if (isURIUnescaped(c, isComponent)) {
-            string_buffer_putc16(b, c);
-        } else {
-            if (c >= 0xdc00 && c <= 0xdfff) {
-                js_throw_URIError(ctx, "invalid character");
-                goto fail;
-            } else if (c >= 0xd800 && c <= 0xdbff) {
-                if (k >= p->len) {
-                    js_throw_URIError(ctx, "expecting surrogate pair");
-                    goto fail;
-                }
-                c1 = string_get(p, k);
-                k++;
-                if (c1 < 0xdc00 || c1 > 0xdfff) {
-                    js_throw_URIError(ctx, "expecting surrogate pair");
-                    goto fail;
-                }
-                c = (((c & 0x3ff) << 10) | (c1 & 0x3ff)) + 0x10000;
-            }
-            if (c < 0x80) {
-                encodeURI_hex(b, c);
-            } else {
-                /* XXX: use C UTF-8 conversion ? */
-                if (c < 0x800) {
-                    encodeURI_hex(b, (c >> 6) | 0xc0);
-                } else {
-                    if (c < 0x10000) {
-                        encodeURI_hex(b, (c >> 12) | 0xe0);
-                    } else {
-                        encodeURI_hex(b, (c >> 18) | 0xf0);
-                        encodeURI_hex(b, ((c >> 12) & 0x3f) | 0x80);
-                    }
-                    encodeURI_hex(b, ((c >> 6) & 0x3f) | 0x80);
-                }
-                encodeURI_hex(b, (c & 0x3f) | 0x80);
-            }
-        }
-    }
-    JS_FreeValue(ctx, str);
-    return string_buffer_end(b);
-
-fail:
-    JS_FreeValue(ctx, str);
-    string_buffer_free(b);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_global_escape(JSContext *ctx, JSValueConst this_val,
-                                int argc, JSValueConst *argv)
-{
-    JSValue str;
-    StringBuffer b_s, *b = &b_s;
-    JSString *p;
-    int i, len, c;
-
-    str = JS_ToStringCheckObject(ctx, argv[0]);
-    if (JS_IsException(str))
-        return str;
-
-    p = JS_VALUE_GET_STRING(str);
-    string_buffer_init(ctx, b, p->len);
-    for (i = 0, len = p->len; i < len; i++) {
-        c = string_get(p, i);
-        if (isUnescaped(c)) {
-            string_buffer_putc16(b, c);
-        } else {
-            encodeURI_hex(b, c);
-        }
-    }
-    JS_FreeValue(ctx, str);
-    return string_buffer_end(b);
-}
-
-static JSValue js_global_unescape(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    JSValue str;
-    StringBuffer b_s, *b = &b_s;
-    JSString *p;
-    int i, len, c, n;
-
-    str = JS_ToStringCheckObject(ctx, argv[0]);
-    if (JS_IsException(str))
-        return str;
-
-    string_buffer_init(ctx, b, 0);
-    p = JS_VALUE_GET_STRING(str);
-    for (i = 0, len = p->len; i < len; i++) {
-        c = string_get(p, i);
-        if (c == '%') {
-            if (i + 6 <= len
-            &&  string_get(p, i + 1) == 'u'
-            &&  (n = string_get_hex(p, i + 2, 4)) >= 0) {
-                c = n;
-                i += 6 - 1;
-            } else
-            if (i + 3 <= len
-            &&  (n = string_get_hex(p, i + 1, 2)) >= 0) {
-                c = n;
-                i += 3 - 1;
-            }
-        }
-        string_buffer_putc16(b, c);
-    }
-    JS_FreeValue(ctx, str);
-    return string_buffer_end(b);
-}
-
-/* global object */
-
-static const JSCFunctionListEntry js_global_funcs[] = {
-    JS_CFUNC_DEF("parseInt", 2, js_parseInt ),
-    JS_CFUNC_DEF("parseFloat", 1, js_parseFloat ),
-    JS_CFUNC_DEF("isNaN", 1, js_global_isNaN ),
-    JS_CFUNC_DEF("isFinite", 1, js_global_isFinite ),
-    JS_CFUNC_DEF("eval", 1, js_global_eval ),
-
-    JS_CFUNC_MAGIC_DEF("decodeURI", 1, js_global_decodeURI, 0 ),
-    JS_CFUNC_MAGIC_DEF("decodeURIComponent", 1, js_global_decodeURI, 1 ),
-    JS_CFUNC_MAGIC_DEF("encodeURI", 1, js_global_encodeURI, 0 ),
-    JS_CFUNC_MAGIC_DEF("encodeURIComponent", 1, js_global_encodeURI, 1 ),
-    JS_CFUNC_DEF("escape", 1, js_global_escape ),
-    JS_CFUNC_DEF("unescape", 1, js_global_unescape ),
-    JS_PROP_DOUBLE_DEF("Infinity", 1.0 / 0.0, 0 ),
-    JS_PROP_DOUBLE_DEF("NaN", NAN, 0 ),
-    JS_PROP_UNDEFINED_DEF("undefined", 0 ),
-
-    /* for the 'Date' implementation */
-    JS_CFUNC_DEF("__date_clock", 0, js___date_clock ),
-    //JS_CFUNC_DEF("__date_now", 0, js___date_now ),
-    //JS_CFUNC_DEF("__date_getTimezoneOffset", 1, js___date_getTimezoneOffset ),
-    //JS_CFUNC_DEF("__date_create", 3, js___date_create ),
-};
-
-/* Date */
-
-static int64_t math_mod(int64_t a, int64_t b) {
-    /* return positive modulo */
-    int64_t m = a % b;
-    return m + (m < 0) * b;
-}
-
-static int64_t floor_div(int64_t a, int64_t b) {
-    /* integer division rounding toward -Infinity */
-    int64_t m = a % b;
-    return (a - (m + (m < 0) * b)) / b;
-}
-
-static JSValue js_Date_parse(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv);
-
-static __exception int JS_ThisTimeValue(JSContext *ctx, double *valp, JSValueConst this_val)
-{
-    if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(this_val);
-        if (p->class_id == JS_CLASS_DATE && JS_IsNumber(p->u.object_data))
-            return JS_ToFloat64(ctx, valp, p->u.object_data);
-    }
-    JS_ThrowTypeError(ctx, "not a Date object");
-    return -1;
-}
-
-static JSValue JS_SetThisTimeValue(JSContext *ctx, JSValueConst this_val, double v)
-{
-    if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(this_val);
-        if (p->class_id == JS_CLASS_DATE) {
-            JS_FreeValue(ctx, p->u.object_data);
-            p->u.object_data = __JS_NewFloat64(ctx, v);
-            return JS_DupValue(ctx, p->u.object_data);
-        }
-    }
-    return JS_ThrowTypeError(ctx, "not a Date object");
-}
-
-static int64_t days_from_year(int64_t y) {
-    return 365 * (y - 1970) + floor_div(y - 1969, 4) -
-        floor_div(y - 1901, 100) + floor_div(y - 1601, 400);
-}
-
-static int64_t days_in_year(int64_t y) {
-    return 365 + !(y % 4) - !(y % 100) + !(y % 400);
-}
-
-/* return the year, update days */
-static int64_t year_from_days(int64_t *days) {
-    int64_t y, d1, nd, d = *days;
-    y = floor_div(d * 10000, 3652425) + 1970;
-    /* the initial approximation is very good, so only a few
-       iterations are necessary */
-    for(;;) {
-        d1 = d - days_from_year(y);
-        if (d1 < 0) {
-            y--;
-            d1 += days_in_year(y);
-        } else {
-            nd = days_in_year(y);
-            if (d1 < nd)
-                break;
-            d1 -= nd;
-            y++;
-        }
-    }
-    *days = d1;
-    return y;
-}
-
-static int const month_days[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
-static char const month_names[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
-static char const day_names[] = "SunMonTueWedThuFriSat";
-
-static __exception int get_date_fields(JSContext *ctx, JSValueConst obj,
-                                       int64_t fields[9], int is_local, int force)
-{
-    double dval;
-    int64_t d, days, wd, y, i, md, h, m, s, ms, tz = 0;
-
-    if (JS_ThisTimeValue(ctx, &dval, obj))
-        return -1;
-
-    if (isnan(dval)) {
-        if (!force)
-            return FALSE; /* NaN */
-        d = 0;        /* initialize all fields to 0 */
-    } else {
-        d = dval;
-        if (is_local) {
-            tz = -getTimezoneOffset(d);
-            d += tz * 60000;
-        }
-    }
-
-    /* result is >= 0, we can use % */
-    h = math_mod(d, 86400000);
-    days = (d - h) / 86400000;
-    ms = h % 1000;
-    h = (h - ms) / 1000;
-    s = h % 60;
-    h = (h - s) / 60;
-    m = h % 60;
-    h = (h - m) / 60;
-    wd = math_mod(days + 4, 7); /* week day */
-    y = year_from_days(&days);
-
-    for(i = 0; i < 11; i++) {
-        md = month_days[i];
-        if (i == 1)
-            md += days_in_year(y) - 365;
-        if (days < md)
-            break;
-        days -= md;
-    }
-    fields[0] = y;
-    fields[1] = i;
-    fields[2] = days + 1;
-    fields[3] = h;
-    fields[4] = m;
-    fields[5] = s;
-    fields[6] = ms;
-    fields[7] = wd;
-    fields[8] = tz;
-    return TRUE;
-}
-
-static double time_clip(double t) {
-    if (t >= -8.64e15 && t <= 8.64e15)
-        return trunc(t) + 0.0;  /* convert -0 to +0 */
-    else
-        return NAN;
-}
-
-static double set_date_fields(int64_t fields[], int is_local) {
-    int64_t days, y, m, md, h, d, i;
-
-    i = fields[1];
-    m = math_mod(i, 12);
-    y = fields[0] + (i - m) / 12;
-    days = days_from_year(y);
-
-    for(i = 0; i < m; i++) {
-        md = month_days[i];
-        if (i == 1)
-            md += days_in_year(y) - 365;
-        days += md;
-    }
-    days += fields[2] - 1;
-    h = ((fields[3] * 60 + fields[4]) * 60 + fields[5]) * 1000 + fields[6];
-    d = days * 86400000 + h;
-    if (is_local)
-        d += getTimezoneOffset(d) * 60000;
-    return time_clip(d);
-}
-
-static JSValue get_date_field(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv, int magic)
-{
-    // get_date_field(obj, n, is_local)
-    int64_t fields[9];
-    int res, n, is_local;
-
-    is_local = magic & 0x0F;
-    n = (magic >> 4) & 0x0F;
-    res = get_date_fields(ctx, this_val, fields, is_local, 0);
-    if (res < 0)
-        return JS_EXCEPTION;
-    if (!res)
-        return JS_NAN;
-
-    if (magic & 0x100) {    // getYear
-        fields[0] -= 1900;
-    }
-    return JS_NewInt64(ctx, fields[n]);
-}
-
-static JSValue set_date_field(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv, int magic)
-{
-    // _field(obj, first_field, end_field, args, is_local)
-    int64_t fields[9];
-    int res, first_field, end_field, is_local, i, n;
-    double d, a;
-
-    d = NAN;
-    first_field = (magic >> 8) & 0x0F;
-    end_field = (magic >> 4) & 0x0F;
-    is_local = magic & 0x0F;
-
-    res = get_date_fields(ctx, this_val, fields, is_local, first_field == 0);
-    if (res < 0)
-        return JS_EXCEPTION;
-    if (res && argc > 0) {
-        n = end_field - first_field;
-        if (argc < n)
-            n = argc;
-        for(i = 0; i < n; i++) {
-            if (JS_ToFloat64(ctx, &a, argv[i]))
-                return JS_EXCEPTION;
-            if (!isfinite(a))
-                goto done;
-            fields[first_field + i] = trunc(a);
-        }
-        d = set_date_fields(fields, is_local);
-    }
-done:
-    return JS_SetThisTimeValue(ctx, this_val, d);
-}
-
-/* fmt:
-   0: toUTCString: "Tue, 02 Jan 2018 23:04:46 GMT"
-   1: toString: "Wed Jan 03 2018 00:05:22 GMT+0100 (CET)"
-   2: toISOString: "2018-01-02T23:02:56.927Z"
-   3: toLocaleString: "1/2/2018, 11:40:40 PM"
-   part: 1=date, 2=time 3=all
-   XXX: should use a variant of strftime().
- */
-static JSValue get_date_string(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv, int magic)
-{
-    // _string(obj, fmt, part)
-    char buf[64];
-    int64_t fields[9];
-    int res, fmt, part, pos;
-    int y, mon, d, h, m, s, ms, wd, tz;
-
-    fmt = (magic >> 4) & 0x0F;
-    part = magic & 0x0F;
-
-    res = get_date_fields(ctx, this_val, fields, fmt & 1, 0);
-    if (res < 0)
-        return JS_EXCEPTION;
-    if (!res) {
-        if (fmt == 2)
-            return JS_ThrowRangeError(ctx, "Date value is NaN");
-        else
-            return JS_NewString(ctx, "Invalid Date");
-    }
-
-    y = fields[0];
-    mon = fields[1];
-    d = fields[2];
-    h = fields[3];
-    m = fields[4];
-    s = fields[5];
-    ms = fields[6];
-    wd = fields[7];
-    tz = fields[8];
-
-    pos = 0;
-
-    if (part & 1) { /* date part */
-        switch(fmt) {
-        case 0:
-            pos += snprintf(buf + pos, sizeof(buf) - pos,
-                            "%.3s, %02d %.3s %0*d ",
-                            day_names + wd * 3, d,
-                            month_names + mon * 3, 4 + (y < 0), y);
-            break;
-        case 1:
-            pos += snprintf(buf + pos, sizeof(buf) - pos,
-                            "%.3s %.3s %02d %0*d",
-                            day_names + wd * 3,
-                            month_names + mon * 3, d, 4 + (y < 0), y);
-            if (part == 3) {
-                buf[pos++] = ' ';
-            }
-            break;
-        case 2:
-            if (y >= 0 && y <= 9999) {
-                pos += snprintf(buf + pos, sizeof(buf) - pos,
-                                "%04d", y);
-            } else {
-                pos += snprintf(buf + pos, sizeof(buf) - pos,
-                                "%+07d", y);
-            }
-            pos += snprintf(buf + pos, sizeof(buf) - pos,
-                            "-%02d-%02dT", mon + 1, d);
-            break;
-        case 3:
-            pos += snprintf(buf + pos, sizeof(buf) - pos,
-                            "%02d/%02d/%0*d", mon + 1, d, 4 + (y < 0), y);
-            if (part == 3) {
-                buf[pos++] = ',';
-                buf[pos++] = ' ';
-            }
-            break;
-        }
-    }
-    if (part & 2) { /* time part */
-        switch(fmt) {
-        case 0:
-            pos += snprintf(buf + pos, sizeof(buf) - pos,
-                            "%02d:%02d:%02d GMT", h, m, s);
-            break;
-        case 1:
-            pos += snprintf(buf + pos, sizeof(buf) - pos,
-                            "%02d:%02d:%02d GMT", h, m, s);
-            if (tz < 0) {
-                buf[pos++] = '-';
-                tz = -tz;
-            } else {
-                buf[pos++] = '+';
-            }
-            /* tz is >= 0, can use % */
-            pos += snprintf(buf + pos, sizeof(buf) - pos,
-                            "%02d%02d", tz / 60, tz % 60);
-            /* XXX: tack the time zone code? */
-            break;
-        case 2:
-            pos += snprintf(buf + pos, sizeof(buf) - pos,
-                            "%02d:%02d:%02d.%03dZ", h, m, s, ms);
-            break;
-        case 3:
-            pos += snprintf(buf + pos, sizeof(buf) - pos,
-                            "%02d:%02d:%02d %cM", (h + 1) % 12 - 1, m, s,
-                            (h < 12) ? 'A' : 'P');
-            break;
-        }
-    }
-    return JS_NewStringLen(ctx, buf, pos);
-}
-
-/* OS dependent: return the UTC time in ms since 1970. */
-static int64_t date_now(void) {
-    struct timeval tv;
-    gettimeofday(&tv, NULL);
-    return (int64_t)tv.tv_sec * 1000 + (tv.tv_usec / 1000);
-}
-
-static JSValue js_date_constructor(JSContext *ctx, JSValueConst new_target,
-                                   int argc, JSValueConst *argv)
-{
-    // Date(y, mon, d, h, m, s, ms)
-    JSValue rv;
-    int i, n;
-    double a, val;
-
-    if (JS_IsUndefined(new_target)) {
-        /* invoked as function */
-        argc = 0;
-    }
-    n = argc;
-    if (n == 0) {
-        val = date_now();
-    } else if (n == 1) {
-        JSValue v, dv;
-        if (JS_VALUE_GET_TAG(argv[0]) == JS_TAG_OBJECT) {
-            JSObject *p = JS_VALUE_GET_OBJ(argv[0]);
-            if (p->class_id == JS_CLASS_DATE && JS_IsNumber(p->u.object_data)) {
-                if (JS_ToFloat64(ctx, &val, p->u.object_data))
-                    return JS_EXCEPTION;
-                val = time_clip(val);
-                goto has_val;
-            }
-        }
-        v = JS_ToPrimitive(ctx, argv[0], HINT_NONE);
-        if (JS_IsString(v)) {
-            dv = js_Date_parse(ctx, JS_UNDEFINED, 1, (JSValueConst *)&v);
-            JS_FreeValue(ctx, v);
-            if (JS_IsException(dv))
-                return JS_EXCEPTION;
-            if (JS_ToFloat64Free(ctx, &val, dv))
-                return JS_EXCEPTION;
-        } else {
-            if (JS_ToFloat64Free(ctx, &val, v))
-                return JS_EXCEPTION;
-        }
-        val = time_clip(val);
-    } else {
-        int64_t fields[] = { 0, 0, 1, 0, 0, 0, 0 };
-        if (n > 7)
-            n = 7;
-        for(i = 0; i < n; i++) {
-            if (JS_ToFloat64(ctx, &a, argv[i]))
-                return JS_EXCEPTION;
-            if (!isfinite(a))
-                break;
-            fields[i] = trunc(a);
-            if (i == 0 && fields[0] >= 0 && fields[0] < 100)
-                fields[0] += 1900;
-        }
-        val = (i == n) ? set_date_fields(fields, 1) : NAN;
-    }
-has_val:
-#if 0
-    JSValueConst args[3];
-    args[0] = new_target;
-    args[1] = ctx->class_proto[JS_CLASS_DATE];
-    args[2] = __JS_NewFloat64(ctx, val);
-    rv = js___date_create(ctx, JS_UNDEFINED, 3, args);
-#else
-    rv = js_create_from_ctor(ctx, new_target, JS_CLASS_DATE);
-    if (!JS_IsException(rv))
-        JS_SetObjectData(ctx, rv, __JS_NewFloat64(ctx, val));
-#endif
-    if (!JS_IsException(rv) && JS_IsUndefined(new_target)) {
-        /* invoked as a function, return (new Date()).toString(); */
-        JSValue s;
-        s = get_date_string(ctx, rv, 0, NULL, 0x13);
-        JS_FreeValue(ctx, rv);
-        rv = s;
-    }
-    return rv;
-}
-
-static JSValue js_Date_UTC(JSContext *ctx, JSValueConst this_val,
-                           int argc, JSValueConst *argv)
-{
-    // UTC(y, mon, d, h, m, s, ms)
-    int64_t fields[] = { 0, 0, 1, 0, 0, 0, 0 };
-    int i, n;
-    double a;
-
-    n = argc;
-    if (n == 0)
-        return JS_NAN;
-    if (n > 7)
-        n = 7;
-    for(i = 0; i < n; i++) {
-        if (JS_ToFloat64(ctx, &a, argv[i]))
-            return JS_EXCEPTION;
-        if (!isfinite(a))
-            return JS_NAN;
-        fields[i] = trunc(a);
-        if (i == 0 && fields[0] >= 0 && fields[0] < 100)
-            fields[0] += 1900;
-    }
-    return __JS_NewFloat64(ctx, set_date_fields(fields, 0));
-}
-
-static void string_skip_spaces(JSString *sp, int *pp) {
-    while (*pp < sp->len && string_get(sp, *pp) == ' ')
-        *pp += 1;
-}
-
-static void string_skip_non_spaces(JSString *sp, int *pp) {
-    while (*pp < sp->len && string_get(sp, *pp) != ' ')
-        *pp += 1;
-}
-
-/* parse a numeric field */
-static int string_get_field(JSString *sp, int *pp, int64_t *pval) {
-    int64_t v = 0;
-    int c, p = *pp;
-
-    /* skip non digits, should only skip spaces? */
-    while (p < sp->len) {
-        c = string_get(sp, p);
-        if (c >= '0' && c <= '9')
-            break;
-        p++;
-    }
-    if (p >= sp->len)
-        return -1;
-    while (p < sp->len) {
-        c = string_get(sp, p);
-        if (!(c >= '0' && c <= '9'))
-            break;
-        v = v * 10 + c - '0';
-        p++;
-    }
-    *pval = v;
-    *pp = p;
-    return 0;
-}
-
-/* parse a fixed width numeric field */
-static int string_get_digits(JSString *sp, int *pp, int n, int64_t *pval) {
-    int64_t v = 0;
-    int i, c, p = *pp;
-
-    for(i = 0; i < n; i++) {
-        if (p >= sp->len)
-            return -1;
-        c = string_get(sp, p);
-        if (!(c >= '0' && c <= '9'))
-            return -1;
-        v = v * 10 + c - '0';
-        p++;
-    }
-    *pval = v;
-    *pp = p;
-    return 0;
-}
-
-/* parse a signed numeric field */
-static int string_get_signed_field(JSString *sp, int *pp, int64_t *pval) {
-    int sgn, res;
-
-    if (*pp >= sp->len)
-        return -1;
-
-    sgn = string_get(sp, *pp);
-    if (sgn == '-' || sgn == '+')
-        *pp += 1;
-
-    res = string_get_field(sp, pp, pval);
-    if (res == 0 && sgn == '-')
-        *pval = -*pval;
-    return res;
-}
-
-static int find_abbrev(JSString *sp, int p, const char *list, int count) {
-    int n, i;
-
-    if (p + 3 <= sp->len) {
-        for (n = 0; n < count; n++) {
-            for (i = 0; i < 3; i++) {
-                if (string_get(sp, p + i) != month_names[n * 3 + i])
-                    goto next;
-            }
-            return n;
-        next:;
-        }
-    }
-    return -1;
-}
-
-static int string_get_month(JSString *sp, int *pp, int64_t *pval) {
-    int n;
-
-    string_skip_spaces(sp, pp);
-    n = find_abbrev(sp, *pp, month_names, 12);
-    if (n < 0)
-        return -1;
-
-    *pval = n;
-    *pp += 3;
-    return 0;
-}
-
-static JSValue js_Date_parse(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv)
-{
-    // parse(s)
-    JSValue s, rv;
-    int64_t fields[] = { 0, 1, 1, 0, 0, 0, 0 };
-    int64_t tz, hh, mm;
-    double d;
-    int p, i, c, sgn;
-    JSString *sp;
-
-    rv = JS_NAN;
-
-    s = JS_ToString(ctx, argv[0]);
-    if (JS_IsException(s))
-        return JS_EXCEPTION;
-    
-    sp = JS_VALUE_GET_STRING(s);
-    p = 0;
-    if (p < sp->len && (((c = string_get(sp, p)) >= '0' && c <= '9') || c == '+' || c == '-')) {
-        /* ISO format */
-        /* year field can be negative */
-        /* XXX: could be stricter */
-        if (string_get_signed_field(sp, &p, &fields[0]))
-            goto done;
-
-        for (i = 1; i < 6; i++) {
-            if (string_get_field(sp, &p, &fields[i]))
-                break;
-        }
-        if (i == 6 && p < sp->len && string_get(sp, p) == '.') {
-            /* parse milliseconds as a fractional part, round to nearest */
-            /* XXX: the spec does not indicate which rounding should be used */
-            int mul = 1000, ms = 0;
-            while (++p < sp->len) {
-                int c = string_get(sp, p);
-                if (!(c >= '0' && c <= '9'))
-                    break;
-                if (mul == 1 && c >= '5')
-                    ms += 1;
-                ms += (c - '0') * (mul /= 10);
-            }
-            fields[6] = ms;
-        }
-        fields[1] -= 1;
-
-        /* parse the time zone offset if present: [+-]HH:mm */
-        tz = 0;
-        if (p < sp->len && ((sgn = string_get(sp, p)) == '+' || sgn == '-')) {
-            if (string_get_field(sp, &p, &hh))
-                goto done;
-            if (string_get_field(sp, &p, &mm))
-                goto done;
-            tz = hh * 60 + mm;
-            if (sgn == '-')
-                tz = -tz;
-        }
-    } else {
-        /* toString or toUTCString format */
-        /* skip the day of the week */
-        string_skip_non_spaces(sp, &p);
-        string_skip_spaces(sp, &p);
-        if (p >= sp->len)
-            goto done;
-        c = string_get(sp, p);
-        if (c >= '0' && c <= '9') {
-            /* day of month first */
-            if (string_get_field(sp, &p, &fields[2]))
-                goto done;
-            if (string_get_month(sp, &p, &fields[1]))
-                goto done;
-        } else {
-            /* month first */
-            if (string_get_month(sp, &p, &fields[1]))
-                goto done;
-            if (string_get_field(sp, &p, &fields[2]))
-                goto done;
-        }
-        string_skip_spaces(sp, &p);
-        if (string_get_signed_field(sp, &p, &fields[0]))
-            goto done;
-
-        /* hour, min, seconds */
-        for(i = 0; i < 3; i++) {
-            if (string_get_field(sp, &p, &fields[3 + i]))
-                goto done;
-        }
-        // XXX: parse optional milliseconds?
-
-        /* parse the time zone offset if present: [+-]HHmm */
-        tz = 0;
-        for (tz = 0; p < sp->len; p++) {
-            sgn = string_get(sp, p);
-            if (sgn == '+' || sgn == '-') {
-                p++;
-                if (string_get_digits(sp, &p, 2, &hh))
-                    goto done;
-                if (string_get_digits(sp, &p, 2, &mm))
-                    goto done;
-                tz = hh * 60 + mm;
-                if (sgn == '-')
-                    tz = -tz;
-                break;
-            }
-        }
-    }
-    d = set_date_fields(fields, 0) - tz * 60000;
-    rv = __JS_NewFloat64(ctx, d);
-
-done:
-    JS_FreeValue(ctx, s);
-    return rv;
-}
-
-static JSValue js_Date_now(JSContext *ctx, JSValueConst this_val,
-                           int argc, JSValueConst *argv)
-{
-    // now()
-    return JS_NewInt64(ctx, date_now());
-}
-
-static JSValue js_date_Symbol_toPrimitive(JSContext *ctx, JSValueConst this_val,
-                                          int argc, JSValueConst *argv)
-{
-    // Symbol_toPrimitive(hint)
-    JSValueConst obj = this_val;
-    JSAtom hint = JS_ATOM_NULL;
-    int hint_num;
-
-    if (!JS_IsObject(obj))
-        return JS_ThrowTypeErrorNotAnObject(ctx);
-
-    if (JS_IsString(argv[0])) {
-        hint = js_value_to_atom(ctx, argv[0]);
-        if (hint == JS_ATOM_NULL)
-            return JS_EXCEPTION;
-        JS_FreeAtom(ctx, hint);
-    }
-    switch (hint) {
-    case JS_ATOM_number:
-#ifdef CONFIG_BIGNUM
-    case JS_ATOM_integer:
-#endif
-        hint_num = HINT_NUMBER;
-        break;
-    case JS_ATOM_string:
-    case JS_ATOM_default:
-        hint_num = HINT_STRING;
-        break;
-    default:
-        return JS_ThrowTypeError(ctx, "invalid hint");
-    }
-    return JS_ToPrimitive(ctx, obj, hint_num | HINT_FORCE_ORDINARY);
-}
-
-static JSValue js_date_getTimezoneOffset(JSContext *ctx, JSValueConst this_val,
-                                         int argc, JSValueConst *argv)
-{
-    // getTimezoneOffset()
-    double v;
-
-    if (JS_ThisTimeValue(ctx, &v, this_val))
-        return JS_EXCEPTION;
-    if (isnan(v))
-        return JS_NAN;
-    else
-        return JS_NewInt64(ctx, getTimezoneOffset((int64_t)trunc(v)));
-}
-
-static JSValue js_date_getTime(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv)
-{
-    // getTime()
-    double v;
-
-    if (JS_ThisTimeValue(ctx, &v, this_val))
-        return JS_EXCEPTION;
-    return __JS_NewFloat64(ctx, v);
-}
-
-static JSValue js_date_setTime(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv)
-{
-    // setTime(v)
-    double v;
-
-    if (JS_ThisTimeValue(ctx, &v, this_val) || JS_ToFloat64(ctx, &v, argv[0]))
-        return JS_EXCEPTION;
-    return JS_SetThisTimeValue(ctx, this_val, time_clip(v));
-}
-
-static JSValue js_date_setYear(JSContext *ctx, JSValueConst this_val,
-                               int argc, JSValueConst *argv)
-{
-    // setYear(y)
-    double y;
-    JSValueConst args[1];
-
-    if (JS_ThisTimeValue(ctx, &y, this_val) || JS_ToFloat64(ctx, &y, argv[0]))
-        return JS_EXCEPTION;
-    y = +y;
-    if (isfinite(y)) {
-        y = trunc(y);
-        if (y >= 0 && y < 100)
-            y += 1900;
-    }
-    args[0] = __JS_NewFloat64(ctx, y);
-    return set_date_field(ctx, this_val, 1, args, 0x011);
-}
-
-static JSValue js_date_toJSON(JSContext *ctx, JSValueConst this_val,
-                              int argc, JSValueConst *argv)
-{
-    // toJSON(key)
-    JSValue obj, tv, method, rv;
-    double d;
-
-    rv = JS_EXCEPTION;
-    tv = JS_UNDEFINED;
-
-    obj = JS_ToObject(ctx, this_val);
-    tv = JS_ToPrimitive(ctx, obj, HINT_NUMBER);
-    if (JS_IsException(tv))
-        goto exception;
-    if (JS_IsNumber(tv)) {
-        if (JS_ToFloat64(ctx, &d, tv) < 0)
-            goto exception;
-        if (!isfinite(d)) {
-            rv = JS_NULL;
-            goto done;
-        }
-    }
-    method = JS_GetPropertyStr(ctx, obj, "toISOString");
-    if (JS_IsException(method))
-        goto exception;
-    if (!JS_IsFunction(ctx, method)) {
-        JS_ThrowTypeError(ctx, "object needs toISOString method");
-        JS_FreeValue(ctx, method);
-        goto exception;
-    }
-    rv = JS_CallFree(ctx, method, obj, 0, NULL);
-exception:
-done:
-    JS_FreeValue(ctx, obj);
-    JS_FreeValue(ctx, tv);
-    return rv;
-}
-
-static const JSCFunctionListEntry js_date_funcs[] = {
-    JS_CFUNC_DEF("now", 0, js_Date_now ),
-    JS_CFUNC_DEF("parse", 1, js_Date_parse ),
-    JS_CFUNC_DEF("UTC", 7, js_Date_UTC ),
-};
-
-static const JSCFunctionListEntry js_date_proto_funcs[] = {
-    JS_CFUNC_DEF("valueOf", 0, js_date_getTime ),
-    JS_CFUNC_MAGIC_DEF("toString", 0, get_date_string, 0x13 ),
-    JS_CFUNC_DEF("[Symbol.toPrimitive]", 1, js_date_Symbol_toPrimitive ),
-    JS_CFUNC_MAGIC_DEF("toUTCString", 0, get_date_string, 0x03 ),
-    JS_ALIAS_DEF("toGMTString", "toUTCString" ),
-    JS_CFUNC_MAGIC_DEF("toISOString", 0, get_date_string, 0x23 ),
-    JS_CFUNC_MAGIC_DEF("toDateString", 0, get_date_string, 0x11 ),
-    JS_CFUNC_MAGIC_DEF("toTimeString", 0, get_date_string, 0x12 ),
-    JS_CFUNC_MAGIC_DEF("toLocaleString", 0, get_date_string, 0x33 ),
-    JS_CFUNC_MAGIC_DEF("toLocaleDateString", 0, get_date_string, 0x31 ),
-    JS_CFUNC_MAGIC_DEF("toLocaleTimeString", 0, get_date_string, 0x32 ),
-    JS_CFUNC_DEF("getTimezoneOffset", 0, js_date_getTimezoneOffset ),
-    JS_CFUNC_DEF("getTime", 0, js_date_getTime ),
-    JS_CFUNC_MAGIC_DEF("getYear", 0, get_date_field, 0x101 ),
-    JS_CFUNC_MAGIC_DEF("getFullYear", 0, get_date_field, 0x01 ),
-    JS_CFUNC_MAGIC_DEF("getUTCFullYear", 0, get_date_field, 0x00 ),
-    JS_CFUNC_MAGIC_DEF("getMonth", 0, get_date_field, 0x11 ),
-    JS_CFUNC_MAGIC_DEF("getUTCMonth", 0, get_date_field, 0x10 ),
-    JS_CFUNC_MAGIC_DEF("getDate", 0, get_date_field, 0x21 ),
-    JS_CFUNC_MAGIC_DEF("getUTCDate", 0, get_date_field, 0x20 ),
-    JS_CFUNC_MAGIC_DEF("getHours", 0, get_date_field, 0x31 ),
-    JS_CFUNC_MAGIC_DEF("getUTCHours", 0, get_date_field, 0x30 ),
-    JS_CFUNC_MAGIC_DEF("getMinutes", 0, get_date_field, 0x41 ),
-    JS_CFUNC_MAGIC_DEF("getUTCMinutes", 0, get_date_field, 0x40 ),
-    JS_CFUNC_MAGIC_DEF("getSeconds", 0, get_date_field, 0x51 ),
-    JS_CFUNC_MAGIC_DEF("getUTCSeconds", 0, get_date_field, 0x50 ),
-    JS_CFUNC_MAGIC_DEF("getMilliseconds", 0, get_date_field, 0x61 ),
-    JS_CFUNC_MAGIC_DEF("getUTCMilliseconds", 0, get_date_field, 0x60 ),
-    JS_CFUNC_MAGIC_DEF("getDay", 0, get_date_field, 0x71 ),
-    JS_CFUNC_MAGIC_DEF("getUTCDay", 0, get_date_field, 0x70 ),
-    JS_CFUNC_DEF("setTime", 1, js_date_setTime ),
-    JS_CFUNC_MAGIC_DEF("setMilliseconds", 1, set_date_field, 0x671 ),
-    JS_CFUNC_MAGIC_DEF("setUTCMilliseconds", 1, set_date_field, 0x670 ),
-    JS_CFUNC_MAGIC_DEF("setSeconds", 2, set_date_field, 0x571 ),
-    JS_CFUNC_MAGIC_DEF("setUTCSeconds", 2, set_date_field, 0x570 ),
-    JS_CFUNC_MAGIC_DEF("setMinutes", 3, set_date_field, 0x471 ),
-    JS_CFUNC_MAGIC_DEF("setUTCMinutes", 3, set_date_field, 0x470 ),
-    JS_CFUNC_MAGIC_DEF("setHours", 4, set_date_field, 0x371 ),
-    JS_CFUNC_MAGIC_DEF("setUTCHours", 4, set_date_field, 0x370 ),
-    JS_CFUNC_MAGIC_DEF("setDate", 1, set_date_field, 0x231 ),
-    JS_CFUNC_MAGIC_DEF("setUTCDate", 1, set_date_field, 0x230 ),
-    JS_CFUNC_MAGIC_DEF("setMonth", 2, set_date_field, 0x131 ),
-    JS_CFUNC_MAGIC_DEF("setUTCMonth", 2, set_date_field, 0x130 ),
-    JS_CFUNC_DEF("setYear", 1, js_date_setYear ),
-    JS_CFUNC_MAGIC_DEF("setFullYear", 3, set_date_field, 0x031 ),
-    JS_CFUNC_MAGIC_DEF("setUTCFullYear", 3, set_date_field, 0x030 ),
-    JS_CFUNC_DEF("toJSON", 1, js_date_toJSON ),
-};
-
-void JS_AddIntrinsicDate(JSContext *ctx)
-{
-    JSValueConst obj;
-
-    /* Date */
-    ctx->class_proto[JS_CLASS_DATE] = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_DATE], js_date_proto_funcs,
-                               countof(js_date_proto_funcs));
-    obj = JS_NewGlobalCConstructor(ctx, "Date", js_date_constructor, 7,
-                                   ctx->class_proto[JS_CLASS_DATE]);
-    JS_SetPropertyFunctionList(ctx, obj, js_date_funcs, countof(js_date_funcs));
-}
-
-/* eval */
-
-void JS_AddIntrinsicEval(JSContext *ctx)
-{
-    ctx->eval_internal = __JS_EvalInternal;
-}
-
-#ifdef CONFIG_BIGNUM
-
-static JSValue JS_ToBigIntCtorFree(JSContext *ctx, JSValue val)
-{
-    uint32_t tag;
-    BOOL is_legacy;
-    int ret;
-
-    is_legacy = is_bignum_mode(ctx) ^ 1;
- redo:
-    tag = JS_VALUE_GET_NORM_TAG(val);
-    switch(tag) {
-    case JS_TAG_INT:
-    case JS_TAG_BOOL:
-        if (is_legacy) {
-            bf_t r_s, *r = &r_s;
-            bf_init(ctx->bf_ctx, r);
-            bf_set_si(r, JS_VALUE_GET_INT(val));
-            val = JS_NewBigInt2(ctx, r, TRUE);
-        } else {
-            val = JS_NewInt32(ctx, JS_VALUE_GET_INT(val));
-        }
-        break;
-    case JS_TAG_BIG_INT:
-        break;
-    case JS_TAG_FLOAT64:
-    case JS_TAG_BIG_FLOAT:
-        {
-            bf_t *a, a_s, r_s, *r = &r_s;
-            BOOL is_float;
-            a = JS_ToBigFloat(ctx, &is_float, &a_s, val);
-            bf_init(ctx->bf_ctx, r);
-            if (!bf_is_finite(a)) {
-                JS_FreeValue(ctx, val);
-                val = JS_ThrowRangeError(ctx, "cannot convert NaN or Infinity to bigint");
-            } else {
-                bf_set(r, a);
-                ret = bf_rint(r, BF_PREC_INF, BF_RNDZ);
-                JS_FreeValue(ctx, val);
-                if (is_legacy && (ret & BF_ST_INEXACT)) {
-                    bf_delete(r);
-                    val = JS_ThrowRangeError(ctx, "cannot convert to bigint: not an integer");
-                } else {
-                    val = JS_NewBigInt2(ctx, r, is_legacy);
-                }
-            }
-            if (a == &a_s)
-                bf_delete(a);
-        }
-        break;
-    case JS_TAG_STRING:
-        val = JS_StringToBigIntErr(ctx, val);
-        if (JS_IsException(val))
-            break;
-        goto redo;
-    case JS_TAG_OBJECT:
-        val = JS_ToPrimitiveFree(ctx, val,
-                                 is_legacy ? HINT_NUMBER : HINT_INTEGER);
-        if (JS_IsException(val))
-            break;
-        goto redo;
-    case JS_TAG_NULL:
-    case JS_TAG_UNDEFINED:
-    default:
-        JS_FreeValue(ctx, val);
-        return JS_ThrowTypeError(ctx, "cannot convert to bigint");
-    }
-    return val;
-}
-
-static JSValue js_bigint_constructor(JSContext *ctx,
-                                     JSValueConst this_val,
-                                     int argc, JSValueConst *argv)
-{
-    return JS_ToBigIntCtorFree(ctx, JS_DupValue(ctx, argv[0]));
-}
-
-static inline BOOL JS_IsBigInt(JSContext *ctx, JSValueConst v)
-{
-    int tag = JS_VALUE_GET_TAG(v);
-    if (tag == JS_TAG_BIG_INT)
-        return TRUE;
-    if (is_bignum_mode(ctx))
-        return tag == JS_TAG_INT;
-    else
-        return FALSE;
-}
-
-static JSValue js_thisBigIntValue(JSContext *ctx, JSValueConst this_val)
-{
-    if (JS_IsBigInt(ctx, this_val))
-        return JS_DupValue(ctx, this_val);
-
-    if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(this_val);
-        if (p->class_id == JS_CLASS_BIG_INT) {
-            /* XXX: may relax the check in case the object comes from
-               bignum mode */
-            if (JS_IsBigInt(ctx, p->u.object_data))
-                return JS_DupValue(ctx, p->u.object_data);
-        }
-    }
-    return JS_ThrowTypeError(ctx, "not a bigint");
-}
-
-static JSValue js_bigint_toString(JSContext *ctx, JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    JSValue val;
-    int base;
-    JSValue ret;
-
-    val = js_thisBigIntValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    if (argc == 0 || JS_IsUndefined(argv[0])) {
-        base = 10;
-    } else {
-        if (JS_ToInt32Sat(ctx, &base, argv[0]))
-            goto fail;
-        if (base < 2 || base > 36) {
-            JS_ThrowRangeError(ctx, "radix must be between 2 and 36");
-            goto fail;
-        }
-    }
-    ret = js_ftoa(ctx, val, base, 0, BF_RNDN | BF_FTOA_FORMAT_FREE_MIN);
-    JS_FreeValue(ctx, val);
-    return ret;
- fail:
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_bigint_valueOf(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    return js_thisBigIntValue(ctx, this_val);
-}
-
-static JSValue js_integer_div(JSContext *ctx,
-                              JSValueConst this_val,
-                              int argc, JSValueConst *argv, int magic)
-{
-    bf_t a_s, b_s, *a, *b, r_s, *r = &r_s, q_s, *q = &q_s;
-    int status;
-
-    b = NULL;
-    a = JS_ToBigInt(ctx, &a_s, argv[0]);
-    if (!a)
-        return JS_EXCEPTION;
-    b = JS_ToBigInt(ctx, &b_s, argv[1]);
-    if (!b) {
-        JS_FreeBigInt(ctx, a, &a_s);
-        return JS_EXCEPTION;
-    }
-    bf_init(ctx->bf_ctx, q);
-    bf_init(ctx->bf_ctx, r);
-    status = bf_divrem(q, r, a, b, BF_PREC_INF, BF_RNDZ, magic & 0xf);
-    JS_FreeBigInt(ctx, a, &a_s);
-    JS_FreeBigInt(ctx, b, &b_s);
-    if (unlikely(status)) {
-        bf_delete(q);
-        bf_delete(r);
-        throw_bf_exception(ctx, status);
-        return JS_EXCEPTION;
-    }
-    if (magic & 0x10) {
-        JSValue ret;
-        /* XXX: handle exceptions */
-        ret = JS_NewArray(ctx);
-        JS_SetPropertyUint32(ctx, ret, 0, JS_NewBigInt(ctx, q));
-        JS_SetPropertyUint32(ctx, ret, 1, JS_NewBigInt(ctx, r));
-        return ret;
-    } else {
-        bf_delete(r);
-        return JS_NewBigInt(ctx, q);
-    }
-}
-
-static JSValue js_integer_sqrt(JSContext *ctx,
-                               JSValueConst this_val,
-                               int argc, JSValueConst *argv, int magic)
-{
-    bf_t a_s, *a, r_s, *r = &r_s, rem_s, *rem = &rem_s;
-    int status;
-
-    a = JS_ToBigInt(ctx, &a_s, argv[0]);
-    if (!a)
-        return JS_EXCEPTION;
-    bf_init(ctx->bf_ctx, r);
-    bf_init(ctx->bf_ctx, rem);
-    status = bf_sqrtrem(r, rem, a);
-    JS_FreeBigInt(ctx, a, &a_s);
-    if (unlikely(status & ~BF_ST_INEXACT)) {
-        bf_delete(r);
-        bf_delete(rem);
-        return throw_bf_exception(ctx, status);
-    }
-    if (magic) {
-        JSValue ret;
-        /* XXX: handle exceptions */
-        ret = JS_NewArray(ctx);
-        JS_SetPropertyUint32(ctx, ret, 0, JS_NewBigInt(ctx, r));
-        JS_SetPropertyUint32(ctx, ret, 1, JS_NewBigInt(ctx, rem));
-        return ret;
-    } else {
-        bf_delete(rem);
-        return JS_NewBigInt(ctx, r);
-    }
-}
-
-static JSValue js_integer_op1(JSContext *ctx,
-                              JSValueConst this_val,
-                              int argc, JSValueConst *argv,
-                              int magic)
-{
-    bf_t a_s, *a;
-    int64_t res;
-
-    a = JS_ToBigInt(ctx, &a_s, argv[0]);
-    if (!a)
-        return JS_EXCEPTION;
-    switch(magic) {
-    case 0: /* floorLog2 */
-        if (a->sign || a->expn <= 0) {
-            res = -1;
-        } else {
-            res = a->expn - 1;
-        }
-        break;
-    case 1: /* ctz */
-        if (bf_is_zero(a)) {
-            res = -1;
-        } else {
-            res = bf_get_exp_min(a);
-        }
-        break;
-    default:
-        abort();
-    }
-    JS_FreeBigInt(ctx, a, &a_s);
-    return JS_NewInt64(ctx, res);
-}
-
-static JSValue js_integer_asUintN(JSContext *ctx,
-                                  JSValueConst this_val,
-                                  int argc, JSValueConst *argv, int asIntN)
-{
-    uint64_t bits;
-    bf_t a_s, *a = &a_s, r_s, *r = &r_s, mask_s, *mask = &mask_s;
-    BOOL is_legacy;
-
-    if (JS_ToIndex(ctx, &bits, argv[0]))
-        return JS_EXCEPTION;
-    a = JS_ToBigInt(ctx, &a_s, argv[1]);
-    if (!a)
-        return JS_EXCEPTION;
-    /* XXX: optimize */
-    bf_init(ctx->bf_ctx, r);
-    bf_init(ctx->bf_ctx, mask);
-    bf_set_ui(mask, 1);
-    bf_mul_2exp(mask, bits, BF_PREC_INF, BF_RNDZ);
-    bf_add_si(mask, mask, -1, BF_PREC_INF, BF_RNDZ);
-    bf_logic_and(r, a, mask);
-    if (asIntN && bits != 0) {
-        bf_set_ui(mask, 1);
-        bf_mul_2exp(mask, bits - 1, BF_PREC_INF, BF_RNDZ);
-        if (bf_cmpu(r, mask) >= 0) {
-            bf_set_ui(mask, 1);
-            bf_mul_2exp(mask, bits, BF_PREC_INF, BF_RNDZ);
-            bf_sub(r, r, mask, BF_PREC_INF, BF_RNDZ);
-        }
-    }
-    bf_delete(mask);
-    JS_FreeBigInt(ctx, a, &a_s);
-    is_legacy = is_bignum_mode(ctx) ^ 1;
-    return JS_NewBigInt2(ctx, r, is_legacy);
-}
-
-static const JSCFunctionListEntry js_integer_funcs[] = {
-    JS_CFUNC_MAGIC_DEF("tdiv", 2, js_integer_div, BF_RNDZ ),
-    JS_CFUNC_MAGIC_DEF("fdiv", 2, js_integer_div, BF_RNDD ),
-    JS_CFUNC_MAGIC_DEF("cdiv", 2, js_integer_div, BF_RNDU ),
-    JS_CFUNC_MAGIC_DEF("ediv", 2, js_integer_div, BF_DIVREM_EUCLIDIAN ),
-    JS_CFUNC_MAGIC_DEF("tdivrem", 2, js_integer_div, BF_RNDZ | 0x10 ),
-    JS_CFUNC_MAGIC_DEF("fdivrem", 2, js_integer_div, BF_RNDD | 0x10 ),
-    JS_CFUNC_MAGIC_DEF("cdivrem", 2, js_integer_div, BF_RNDU | 0x10 ),
-    JS_CFUNC_MAGIC_DEF("edivrem", 2, js_integer_div, BF_DIVREM_EUCLIDIAN | 0x10 ),
-    JS_CFUNC_MAGIC_DEF("sqrt", 1, js_integer_sqrt, 0 ),
-    JS_CFUNC_MAGIC_DEF("sqrtrem", 1, js_integer_sqrt, 1 ),
-    JS_CFUNC_MAGIC_DEF("floorLog2", 1, js_integer_op1, 0 ),
-    JS_CFUNC_MAGIC_DEF("ctz", 1, js_integer_op1, 1 ),
-    JS_CFUNC_MAGIC_DEF("asUintN", 2, js_integer_asUintN, 0 ),
-    JS_CFUNC_MAGIC_DEF("asIntN", 2, js_integer_asUintN, 1 ),
-};
-
-static const JSCFunctionListEntry js_bigint_proto_funcs[] = {
-    JS_CFUNC_DEF("toString", 0, js_bigint_toString ),
-    JS_CFUNC_DEF("valueOf", 0, js_bigint_valueOf ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "BigInt", JS_PROP_CONFIGURABLE ),
-};
-
-static JSValue js_thisBigFloatValue(JSContext *ctx, JSValueConst this_val)
-{
-    if (JS_IsBigFloat(this_val))
-        return JS_DupValue(ctx, this_val);
-
-    if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
-        JSObject *p = JS_VALUE_GET_OBJ(this_val);
-        if (p->class_id == JS_CLASS_BIG_FLOAT) {
-            if (JS_IsBigFloat(p->u.object_data))
-                return JS_DupValue(ctx, p->u.object_data);
-        }
-    }
-    return JS_ThrowTypeError(ctx, "not a bigfloat");
-}
-
-static JSValue js_bigfloat_toString(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    JSValue val;
-    int base;
-    JSValue ret;
-
-    val = js_thisBigFloatValue(ctx, this_val);
-    if (JS_IsException(val))
-        return val;
-    if (argc == 0 || JS_IsUndefined(argv[0])) {
-        base = 10;
-    } else {
-        if (JS_ToInt32Sat(ctx, &base, argv[0]))
-            goto fail;
-        if (base < 2 || base > 36) {
-            JS_ThrowRangeError(ctx, "radix must be between 2 and 36");
-            goto fail;
-        }
-    }
-    ret = js_ftoa(ctx, val, base, 0, BF_RNDN | BF_FTOA_FORMAT_FREE_MIN);
-    JS_FreeValue(ctx, val);
-    return ret;
- fail:
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_bigfloat_valueOf(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    return js_thisBigFloatValue(ctx, this_val);
-}
-
-static const JSCFunctionListEntry js_bigfloat_proto_funcs[] = {
-    JS_CFUNC_DEF("toString", 0, js_bigfloat_toString ),
-    JS_CFUNC_DEF("valueOf", 0, js_bigfloat_valueOf ),
-    JS_CFUNC_MAGIC_DEF("toPrecision", 1, js_number_toPrecision, 1 ),
-    JS_CFUNC_MAGIC_DEF("toFixed", 1, js_number_toFixed, 1 ),
-    JS_CFUNC_MAGIC_DEF("toExponential", 1, js_number_toExponential, 1 ),
-};
-
-static JSValue js_bigfloat_constructor(JSContext *ctx,
-                                       JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    JSValue val;
-    if (argc == 0) {
-        bf_t r_s, *r = &r_s;
-        bf_init(ctx->bf_ctx, r);
-        bf_set_zero(r, 0);
-        val = JS_NewBigFloat(ctx, r);
-    } else {
-        val = JS_DupValue(ctx, argv[0]);
-    redo:
-        switch(JS_VALUE_GET_NORM_TAG(val)) {
-        case JS_TAG_BIG_FLOAT:
-            break;
-        case JS_TAG_FLOAT64:
-            {
-                bf_t r_s, *r = &r_s;
-                bf_init(ctx->bf_ctx, r);
-                bf_set_float64(r, JS_VALUE_GET_FLOAT64(val));
-                val = JS_NewBigFloat(ctx, r);
-            }
-            break;
-        case JS_TAG_INT:
-            {
-                bf_t r_s, *r = &r_s;
-                bf_init(ctx->bf_ctx, r);
-                bf_set_si(r, JS_VALUE_GET_INT(val));
-                val = JS_NewBigFloat(ctx, r);
-            }
-            break;
-        case JS_TAG_BIG_INT:
-            /* We keep the full precision of the integer */
-            {
-                JSBigFloat *p = JS_VALUE_GET_PTR(val);
-                val = JS_MKPTR(JS_TAG_BIG_FLOAT, p);
-            }
-            break;
-        case JS_TAG_STRING:
-            {
-                const char *str, *p;
-                int err;
-
-                str = JS_ToCString(ctx, val);
-                JS_FreeValue(ctx, val);
-                if (!str)
-                    return JS_EXCEPTION;
-                val = js_atof(ctx, str, &p, 0, BF_ATOF_BIN_OCT |
-                              BF_ATOF_NO_PREFIX_AFTER_SIGN |
-                              BF_ATOF_JS_QUIRKS);
-                p += skip_spaces(p);
-                err = (*p != '\0');
-                JS_FreeCString(ctx, str);
-                if (err) {
-                    JS_FreeValue(ctx, val);
-                    return JS_ThrowSyntaxError(ctx, "invalid bigfloat literal");
-                }
-            }
-            break;
-        case JS_TAG_OBJECT:
-            val = JS_ToPrimitiveFree(ctx, val, HINT_NUMBER);
-            if (JS_IsException(val))
-                break;
-            goto redo;
-        case JS_TAG_NULL:
-        case JS_TAG_UNDEFINED:
-        default:
-            JS_FreeValue(ctx, val);
-            return JS_ThrowTypeError(ctx, "cannot convert to bigfloat");
-        }
-    }
-    return val;
-}
-
-static JSValue js_float_get_const(JSContext *ctx,
-                                  JSValueConst this_val, int magic)
-{
-    bf_t r_s, *r = &r_s;
-    bf_init(ctx->bf_ctx, r);
-    switch(magic) {
-    case 0: /* PI */
-        bf_const_pi(r, ctx->fp_env.prec, ctx->fp_env.flags);
-        break;
-    case 1: /* LN2 */
-        bf_const_log2(r, ctx->fp_env.prec, ctx->fp_env.flags);
-        break;
-    case 2: /* MIN_VALUE */
-    case 3: /* MAX_VALUE */
-        {
-            slimb_t e_range, e;
-            e_range = (limb_t)1 << (bf_get_exp_bits(ctx->fp_env.flags) - 1);
-            bf_set_ui(r, 1);
-            if (magic == 2) {
-                e = -e_range + 2;
-                if (ctx->fp_env.flags & BF_FLAG_SUBNORMAL)
-                    e -= ctx->fp_env.prec - 1;
-                bf_mul_2exp(r, e, ctx->fp_env.prec, ctx->fp_env.flags);
-            } else {
-                bf_mul_2exp(r, ctx->fp_env.prec, ctx->fp_env.prec,
-                            ctx->fp_env.flags);
-                bf_add_si(r, r, -1, ctx->fp_env.prec, ctx->fp_env.flags);
-                bf_mul_2exp(r, e_range - ctx->fp_env.prec, ctx->fp_env.prec,
-                            ctx->fp_env.flags);
-            }
-        }
-        break;
-    case 4: /* EPSILON */
-        bf_set_ui(r, 1);
-        bf_mul_2exp(r, 1 - ctx->fp_env.prec,
-                    ctx->fp_env.prec, ctx->fp_env.flags);
-        break;
-    default:
-        abort();
-    }
-    return JS_NewBigFloat(ctx, r);
-}
-
-static JSValue js_float_parseFloat(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    bf_t a_s, *a = &a_s;
-    const char *str;
-    JSValue ret;
-    int radix;
-    JSFloatEnv *fe;
-
-    str = JS_ToCString(ctx, argv[0]);
-    if (!str)
-        return JS_EXCEPTION;
-    if (JS_ToInt32(ctx, &radix, argv[1])) {
-    fail:
-        JS_FreeCString(ctx, str);
-        return JS_EXCEPTION;
-    }
-    if (radix != 0 && (radix < 2 || radix > 36)) {
-        JS_ThrowRangeError(ctx, "radix must be between 2 and 36");
-        goto fail;
-    }
-    fe = &ctx->fp_env;
-    if (argc > 2) {
-        fe = JS_GetOpaque2(ctx, argv[2], JS_CLASS_FLOAT_ENV);
-        if (!fe)
-            goto fail;
-    }
-    bf_init(ctx->bf_ctx, a);
-    bf_atof(a, str, NULL, radix, fe->prec, BF_ATOF_JS_QUIRKS | fe->flags);
-    ret = JS_NewBigFloat(ctx, a);
-    JS_FreeCString(ctx, str);
-    return ret;
-}
-
-static const JSCFunctionListEntry js_bigfloat_funcs[] = {
-    JS_CGETSET_MAGIC_DEF("PI", js_float_get_const, NULL, 0 ),
-    JS_CGETSET_MAGIC_DEF("LN2", js_float_get_const, NULL, 1 ),
-    JS_CGETSET_MAGIC_DEF("MIN_VALUE", js_float_get_const, NULL, 2 ),
-    JS_CGETSET_MAGIC_DEF("MAX_VALUE", js_float_get_const, NULL, 3 ),
-    JS_CGETSET_MAGIC_DEF("EPSILON", js_float_get_const, NULL, 4 ),
-    JS_CFUNC_DEF("parseFloat", 1, js_float_parseFloat ),
-    JS_CFUNC_MAGIC_DEF("abs", 1, js_math_fop, MATH_OP_ABS ),
-    JS_CFUNC_MAGIC_DEF("fpRound", 1, js_math_fop, MATH_OP_FPROUND ),
-    JS_CFUNC_MAGIC_DEF("floor", 1, js_math_fop, MATH_OP_FLOOR ),
-    JS_CFUNC_MAGIC_DEF("ceil", 1, js_math_fop, MATH_OP_CEIL ),
-    JS_CFUNC_MAGIC_DEF("round", 1, js_math_fop, MATH_OP_ROUND ),
-    JS_CFUNC_MAGIC_DEF("trunc", 1, js_math_fop, MATH_OP_TRUNC ),
-    JS_CFUNC_MAGIC_DEF("sqrt", 1, js_math_fop, MATH_OP_SQRT ),
-    JS_CFUNC_MAGIC_DEF("acos", 1, js_math_fop, MATH_OP_ACOS ),
-    JS_CFUNC_MAGIC_DEF("asin", 1, js_math_fop, MATH_OP_ASIN ),
-    JS_CFUNC_MAGIC_DEF("atan", 1, js_math_fop, MATH_OP_ATAN ),
-    JS_CFUNC_MAGIC_DEF("atan2", 2, js_math_fop2, MATH_OP_ATAN2 ),
-    JS_CFUNC_MAGIC_DEF("cos", 1, js_math_fop, MATH_OP_COS ),
-    JS_CFUNC_MAGIC_DEF("exp", 1, js_math_fop, MATH_OP_EXP ),
-    JS_CFUNC_MAGIC_DEF("log", 1, js_math_fop, MATH_OP_LOG ),
-    JS_CFUNC_MAGIC_DEF("pow", 2, js_math_fop2, MATH_OP_POW ),
-    JS_CFUNC_MAGIC_DEF("sin", 1, js_math_fop, MATH_OP_SIN ),
-    JS_CFUNC_MAGIC_DEF("tan", 1, js_math_fop, MATH_OP_TAN ),
-    JS_CFUNC_MAGIC_DEF("sign", 1, js_math_fop, MATH_OP_SIGN ),
-    JS_CFUNC_MAGIC_DEF("add", 2, js_math_fop2, MATH_OP_ADD ),
-    JS_CFUNC_MAGIC_DEF("sub", 2, js_math_fop2, MATH_OP_SUB ),
-    JS_CFUNC_MAGIC_DEF("mul", 2, js_math_fop2, MATH_OP_MUL ),
-    JS_CFUNC_MAGIC_DEF("div", 2, js_math_fop2, MATH_OP_DIV ),
-    JS_CFUNC_MAGIC_DEF("fmod", 2, js_math_fop2, MATH_OP_FMOD ),
-    JS_CFUNC_MAGIC_DEF("remainder", 2, js_math_fop2, MATH_OP_REM ),
-};
-
-/* FloatEnv */
-
-static JSValue js_float_env_constructor(JSContext *ctx,
-                                        JSValueConst new_target,
-                                        int argc, JSValueConst *argv)
-{
-    JSValue obj;
-    JSFloatEnv *fe;
-    int64_t prec;
-    int flags, rndmode;
-
-    prec = ctx->fp_env.prec;
-    flags = ctx->fp_env.flags;
-    if (!JS_IsUndefined(argv[0])) {
-        if (JS_ToInt64Sat(ctx, &prec, argv[0]))
-            return JS_EXCEPTION;
-        if (prec < BF_PREC_MIN || prec > BF_PREC_MAX)
-            return JS_ThrowRangeError(ctx, "invalid precision");
-        flags = BF_RNDN; /* RNDN, max exponent size, no subnormal */
-        if (argc > 1 && !JS_IsUndefined(argv[1])) {
-            if (JS_ToInt32Sat(ctx, &rndmode, argv[1]))
-                return JS_EXCEPTION;
-            if (rndmode < BF_RNDN || rndmode > BF_RNDF)
-                return JS_ThrowRangeError(ctx, "invalid rounding mode");
-            flags = rndmode;
-        }
-    }
-
-    obj = JS_NewObjectClass(ctx, JS_CLASS_FLOAT_ENV);
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-    fe = js_malloc(ctx, sizeof(*fe));
-    if (!fe)
-        return JS_EXCEPTION;
-    fe->prec = prec;
-    fe->flags = flags;
-    fe->status = 0;
-    JS_SetOpaque(obj, fe);
-    return obj;
-}
-
-static void js_float_env_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSFloatEnv *fe = JS_GetOpaque(val, JS_CLASS_FLOAT_ENV);
-    js_free_rt(rt, fe);
-}
-
-static JSValue js_float_env_get_prec(JSContext *ctx, JSValueConst this_val)
-{
-    return JS_NewInt64(ctx, ctx->fp_env.prec);
-}
-
-static JSValue js_float_env_get_expBits(JSContext *ctx, JSValueConst this_val)
-{
-    return JS_NewInt32(ctx, bf_get_exp_bits(ctx->fp_env.flags));
-}
-
-/* temporary fix for string conversion overflows */
-#define BF_EXP_BITS_MAX1 (BF_EXP_BITS_MAX - 1)
-
-static JSValue js_float_env_setPrec(JSContext *ctx,
-                                    JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    JSValueConst func;
-    int exp_bits, flags, saved_flags;
-    JSValue ret;
-    limb_t saved_prec;
-    int64_t prec;
-
-    func = argv[0];
-    if (JS_ToInt64Sat(ctx, &prec, argv[1]))
-        return JS_EXCEPTION;
-    if (prec < BF_PREC_MIN || prec > BF_PREC_MAX)
-        return JS_ThrowRangeError(ctx, "invalid precision");
-    exp_bits = BF_EXP_BITS_MAX1;
-
-    if (argc > 2 && !JS_IsUndefined(argv[2])) {
-        if (JS_ToInt32Sat(ctx, &exp_bits, argv[2]))
-            return JS_EXCEPTION;
-        if (exp_bits < BF_EXP_BITS_MIN || exp_bits > BF_EXP_BITS_MAX1)
-            return JS_ThrowRangeError(ctx, "invalid number of exponent bits");
-    }
-
-    flags = BF_RNDN | bf_set_exp_bits(exp_bits);
-    if (exp_bits != BF_EXP_BITS_MAX1)
-        flags |= BF_FLAG_SUBNORMAL;
-
-    saved_prec = ctx->fp_env.prec;
-    saved_flags = ctx->fp_env.flags;
-
-    ctx->fp_env.prec = prec;
-    ctx->fp_env.flags = flags;
-
-    ret = JS_Call(ctx, func, JS_UNDEFINED, 0, NULL);
-    /* always restore the floating point precision */
-    ctx->fp_env.prec = saved_prec;
-    ctx->fp_env.flags = saved_flags;
-    return ret;
-}
-
-#define FE_PREC      (-1)
-#define FE_EXP       (-2)
-#define FE_RNDMODE   (-3)
-#define FE_SUBNORMAL (-4)
-
-static JSValue js_float_env_proto_get_status(JSContext *ctx, JSValueConst this_val, int magic)
-{
-    JSFloatEnv *fe;
-    fe = JS_GetOpaque2(ctx, this_val, JS_CLASS_FLOAT_ENV);
-    if (!fe)
-        return JS_EXCEPTION;
-    switch(magic) {
-    case FE_PREC:
-        return JS_NewInt64(ctx, fe->prec);
-    case FE_EXP:
-        return JS_NewInt32(ctx, bf_get_exp_bits(fe->flags));
-    case FE_RNDMODE:
-        return JS_NewInt32(ctx, fe->flags & BF_RND_MASK);
-    case FE_SUBNORMAL:
-        return JS_NewBool(ctx, (fe->flags & BF_FLAG_SUBNORMAL) != 0);
-    default:
-        return JS_NewBool(ctx, (fe->status & magic) != 0);
-    }
-}
-
-static JSValue js_float_env_proto_set_status(JSContext *ctx, JSValueConst this_val, JSValue val, int magic)
-{
-    JSFloatEnv *fe;
-    int b;
-    int64_t prec;
-
-    fe = JS_GetOpaque2(ctx, this_val, JS_CLASS_FLOAT_ENV);
-    if (!fe)
-        return JS_EXCEPTION;
-    switch(magic) {
-    case FE_PREC:
-        if (JS_ToInt64Sat(ctx, &prec, val))
-            return JS_EXCEPTION;
-        if (prec < BF_PREC_MIN || prec > BF_PREC_MAX)
-            return JS_ThrowRangeError(ctx, "invalid precision");
-        fe->prec = prec;
-        break;
-    case FE_EXP:
-        if (JS_ToInt32Sat(ctx, &b, val))
-            return JS_EXCEPTION;
-        if (b < BF_EXP_BITS_MIN || b > BF_EXP_BITS_MAX1)
-            return JS_ThrowRangeError(ctx, "invalid number of exponent bits");
-        if (b == BF_EXP_BITS_MAX1)
-            fe->flags &= ~BF_FLAG_SUBNORMAL;
-        fe->flags = (fe->flags & ~(BF_EXP_BITS_MASK << BF_EXP_BITS_SHIFT)) |
-            bf_set_exp_bits(b);
-        break;
-    case FE_RNDMODE:
-        b = get_rnd_mode(ctx, val);
-        if (b < 0)
-            return JS_EXCEPTION;
-        fe->flags = (fe->flags & ~BF_RND_MASK) | b;
-        break;
-    case FE_SUBNORMAL:
-        b = JS_ToBool(ctx, val);
-        if (bf_get_exp_bits(fe->flags) != BF_EXP_BITS_MAX1) {
-            fe->flags = (fe->flags & ~BF_FLAG_SUBNORMAL) | (b ? BF_FLAG_SUBNORMAL: 0);
-        }
-        break;
-    default:
-        b = JS_ToBool(ctx, val);
-        fe->status = (fe->status & ~magic) & ((-b) & magic);
-        break;
-    }
-    return JS_UNDEFINED;
-}
-
-static JSValue js_float_env_clearStatus(JSContext *ctx,
-                                        JSValueConst this_val,
-                                        int argc, JSValueConst *argv)
-{
-    JSFloatEnv *fe = JS_GetOpaque2(ctx, this_val, JS_CLASS_FLOAT_ENV);
-    if (!fe)
-        return JS_EXCEPTION;
-    fe->status = 0;
-    return JS_UNDEFINED;
-}
-
-static const JSCFunctionListEntry js_float_env_funcs[] = {
-    JS_CGETSET_DEF("prec", js_float_env_get_prec, NULL ),
-    JS_CGETSET_DEF("expBits", js_float_env_get_expBits, NULL ),
-    JS_CFUNC_DEF("setPrec", 2, js_float_env_setPrec ),
-    JS_PROP_INT32_DEF("RNDN", BF_RNDN, 0 ),
-    JS_PROP_INT32_DEF("RNDZ", BF_RNDZ, 0 ),
-    JS_PROP_INT32_DEF("RNDU", BF_RNDU, 0 ),
-    JS_PROP_INT32_DEF("RNDD", BF_RNDD, 0 ),
-    JS_PROP_INT32_DEF("RNDNA", BF_RNDNA, 0 ),
-    JS_PROP_INT32_DEF("RNDNU", BF_RNDNU, 0 ),
-    JS_PROP_INT32_DEF("RNDF", BF_RNDF, 0 ),
-    JS_PROP_INT32_DEF("precMin", BF_PREC_MIN, 0 ),
-    JS_PROP_INT64_DEF("precMax", BF_PREC_MAX, 0 ),
-    JS_PROP_INT32_DEF("expBitsMin", BF_EXP_BITS_MIN, 0 ),
-    JS_PROP_INT32_DEF("expBitsMax", BF_EXP_BITS_MAX1, 0 ),
-};
-
-static const JSCFunctionListEntry js_float_env_proto_funcs[] = {
-    JS_CGETSET_MAGIC_DEF("prec", js_float_env_proto_get_status,
-                         js_float_env_proto_set_status, FE_PREC ),
-    JS_CGETSET_MAGIC_DEF("expBits", js_float_env_proto_get_status,
-                         js_float_env_proto_set_status, FE_EXP ),
-    JS_CGETSET_MAGIC_DEF("rndMode", js_float_env_proto_get_status,
-                         js_float_env_proto_set_status, FE_RNDMODE ),
-    JS_CGETSET_MAGIC_DEF("subnormal", js_float_env_proto_get_status,
-                         js_float_env_proto_set_status, FE_SUBNORMAL ),
-    JS_CGETSET_MAGIC_DEF("invalidOperation", js_float_env_proto_get_status,
-                         js_float_env_proto_set_status, BF_ST_INVALID_OP ),
-    JS_CGETSET_MAGIC_DEF("divideByZero", js_float_env_proto_get_status,
-                         js_float_env_proto_set_status, BF_ST_DIVIDE_ZERO ),
-    JS_CGETSET_MAGIC_DEF("overflow", js_float_env_proto_get_status,
-                         js_float_env_proto_set_status, BF_ST_OVERFLOW ),
-    JS_CGETSET_MAGIC_DEF("underflow", js_float_env_proto_get_status,
-                         js_float_env_proto_set_status, BF_ST_UNDERFLOW ),
-    JS_CGETSET_MAGIC_DEF("inexact", js_float_env_proto_get_status,
-                         js_float_env_proto_set_status, BF_ST_INEXACT ),
-    JS_CFUNC_DEF("clearStatus", 0, js_float_env_clearStatus ),
-};
-
-#endif /* CONFIG_BIGNUM */
-
-static const char * const native_error_name[JS_NATIVE_ERROR_COUNT] = {
-    "EvalError", "RangeError", "ReferenceError",
-    "SyntaxError", "TypeError", "URIError",
-    "InternalError",
-};
-
-/* Minimum amount of objects to be able to compile code and display
-   error messages. No JSAtom should be allocated by this function. */
-static void JS_AddIntrinsicBasicObjects(JSContext *ctx)
-{
-    JSValue proto;
-    int i;
-
-    ctx->class_proto[JS_CLASS_OBJECT] = JS_NewObjectProto(ctx, JS_NULL);
-    ctx->function_proto = JS_NewCFunction3(ctx, js_function_proto, "", 0,
-                                           JS_CFUNC_generic, 0,
-                                           ctx->class_proto[JS_CLASS_OBJECT]);
-    ctx->class_proto[JS_CLASS_BYTECODE_FUNCTION] = JS_DupValue(ctx, ctx->function_proto);
-    ctx->class_proto[JS_CLASS_ERROR] = JS_NewObject(ctx);
-#if 0
-    /* these are auto-initialized from js_error_proto_funcs,
-       but delaying might be a problem */
-    JS_DefinePropertyValue(ctx, ctx->class_proto[JS_CLASS_ERROR], JS_ATOM_name,
-                           JS_AtomToString(ctx, JS_ATOM_Error),
-                           JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-    JS_DefinePropertyValue(ctx, ctx->class_proto[JS_CLASS_ERROR], JS_ATOM_message,
-                           JS_AtomToString(ctx, JS_ATOM_empty_string),
-                           JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-#endif
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_ERROR],
-                               js_error_proto_funcs,
-                               countof(js_error_proto_funcs));
-
-    for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++) {
-        proto = JS_NewObjectProto(ctx, ctx->class_proto[JS_CLASS_ERROR]);
-        JS_DefinePropertyValue(ctx, proto, JS_ATOM_name,
-                               JS_NewAtomString(ctx, native_error_name[i]),
-                               JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-        JS_DefinePropertyValue(ctx, proto, JS_ATOM_message,
-                               JS_AtomToString(ctx, JS_ATOM_empty_string),
-                               JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-        ctx->native_error_proto[i] = proto;
-    }
-
-    /* the array prototype is an array */
-    ctx->class_proto[JS_CLASS_ARRAY] =
-        JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
-                               JS_CLASS_ARRAY);
-
-    ctx->array_shape = js_new_shape2(ctx, get_proto_obj(ctx->class_proto[JS_CLASS_ARRAY]),
-                                     JS_PROP_INITIAL_HASH_SIZE, 1);
-    add_shape_property(ctx, &ctx->array_shape, NULL,
-                       JS_ATOM_length, JS_PROP_WRITABLE | JS_PROP_LENGTH);
-
-    /* XXX: could test it on first context creation to ensure that no
-       new atoms are created in JS_AddIntrinsicBasicObjects(). It is
-       necessary to avoid useless renumbering of atoms after
-       JS_EvalBinary() if it is done just after
-       JS_AddIntrinsicBasicObjects(). */
-    //    assert(ctx->rt->atom_count == JS_ATOM_END);
-}
-
-void JS_AddIntrinsicBaseObjects(JSContext *ctx)
-{
-    int i;
-    JSValueConst obj, number_obj;
-    JSValue obj1;
-
-    ctx->throw_type_error = JS_NewCFunction(ctx, js_throw_type_error, NULL, 0);
-
-    /* add caller and arguments properties to throw a TypeError */
-    obj1 = JS_NewCFunction(ctx, js_function_proto_caller, "get caller", 0);
-    JS_DefineProperty(ctx, ctx->function_proto, JS_ATOM_caller, JS_UNDEFINED,
-                      obj1, ctx->throw_type_error,
-                      JS_PROP_HAS_GET | JS_PROP_HAS_SET |
-                      JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE);
-    JS_FreeValue(ctx, obj1);
-    JS_DefineProperty(ctx, ctx->function_proto, JS_ATOM_arguments, JS_UNDEFINED,
-                      ctx->throw_type_error, ctx->throw_type_error,
-                      JS_PROP_HAS_GET | JS_PROP_HAS_SET |
-                      JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE);
-    JS_FreeValue(ctx, js_object_seal(ctx, JS_UNDEFINED, 1, (JSValueConst *)&ctx->throw_type_error, 1));
-
-    ctx->global_obj = JS_NewObject(ctx);
-    ctx->global_var_obj = JS_NewObjectProto(ctx, JS_NULL);
-
-    /* Object */
-    obj = JS_NewGlobalCConstructor(ctx, "Object", js_object_constructor, 1,
-                                   ctx->class_proto[JS_CLASS_OBJECT]);
-    JS_SetPropertyFunctionList(ctx, obj, js_object_funcs, countof(js_object_funcs));
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_OBJECT],
-                               js_object_proto_funcs, countof(js_object_proto_funcs));
-
-    /* Function */
-    JS_SetPropertyFunctionList(ctx, ctx->function_proto, js_function_proto_funcs, countof(js_function_proto_funcs));
-    ctx->function_ctor = JS_NewCFunctionMagic(ctx, js_function_constructor,
-                                              "Function", 1, JS_CFUNC_constructor_or_func_magic,
-                                              JS_FUNC_NORMAL);
-    JS_NewGlobalCConstructor2(ctx, JS_DupValue(ctx, ctx->function_ctor), "Function",
-                              ctx->function_proto);
-
-    /* Error */
-    obj1 = JS_NewCFunctionMagic(ctx, js_error_constructor,
-                                "Error", 1, JS_CFUNC_constructor_or_func_magic, -1);
-    JS_NewGlobalCConstructor2(ctx, obj1,
-                              "Error", ctx->class_proto[JS_CLASS_ERROR]);
-
-    for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++) {
-        JSValue func_obj = JS_NewCFunction3(ctx, (JSCFunction *)js_error_constructor,
-                                            native_error_name[i], 1,
-                                            JS_CFUNC_constructor_or_func_magic, i, obj1);
-        JS_NewGlobalCConstructor2(ctx, func_obj, native_error_name[i],
-                                  ctx->native_error_proto[i]);
-    }
-
-    /* Iterator prototype */
-    ctx->iterator_proto = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->iterator_proto,
-                               js_iterator_proto_funcs,
-                               countof(js_iterator_proto_funcs));
-
-    /* Array */
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_ARRAY],
-                               js_array_proto_funcs,
-                               countof(js_array_proto_funcs));
-
-    obj = JS_NewGlobalCConstructor(ctx, "Array", js_array_constructor, 1,
-                                   ctx->class_proto[JS_CLASS_ARRAY]);
-    JS_SetPropertyFunctionList(ctx, obj, js_array_funcs,
-                               countof(js_array_funcs));
-
-    /* XXX: create auto_initializer */
-    {
-        /* initialize Array.prototype[Symbol.unscopables] */
-        char const unscopables[] = "copyWithin" "\0" "entries" "\0" "fill" "\0" "find" "\0"
-            "findIndex" "\0" "flat" "\0" "flatMap" "\0" "includes" "\0" "keys" "\0" "values" "\0";
-        const char *p = unscopables;
-        obj1 = JS_NewObjectProto(ctx, JS_NULL);
-        for(p = unscopables; *p; p += strlen(p) + 1) {
-            JS_DefinePropertyValueStr(ctx, obj1, p, JS_TRUE, JS_PROP_C_W_E);
-        }
-        JS_DefinePropertyValue(ctx, ctx->class_proto[JS_CLASS_ARRAY],
-                               JS_ATOM_Symbol_unscopables, obj1,
-                               JS_PROP_CONFIGURABLE);
-    }
-
-    /* needed to initialize arguments[Symbol.iterator] */
-    ctx->array_proto_values =
-        JS_GetProperty(ctx, ctx->class_proto[JS_CLASS_ARRAY], JS_ATOM_values);
-
-    ctx->class_proto[JS_CLASS_ARRAY_ITERATOR] = JS_NewObjectProto(ctx, ctx->iterator_proto);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_ARRAY_ITERATOR],
-                               js_array_iterator_proto_funcs,
-                               countof(js_array_iterator_proto_funcs));
-
-    /* Number */
-    ctx->class_proto[JS_CLASS_NUMBER] = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
-                                                               JS_CLASS_NUMBER);
-    JS_SetObjectData(ctx, ctx->class_proto[JS_CLASS_NUMBER], JS_NewInt32(ctx, 0));
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_NUMBER],
-                               js_number_proto_funcs,
-                               countof(js_number_proto_funcs));
-    number_obj = JS_NewGlobalCConstructor(ctx, "Number", js_number_constructor, 1,
-                                          ctx->class_proto[JS_CLASS_NUMBER]);
-    JS_SetPropertyFunctionList(ctx, number_obj, js_number_funcs, countof(js_number_funcs));
-
-    /* Boolean */
-    ctx->class_proto[JS_CLASS_BOOLEAN] = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
-                                                                JS_CLASS_BOOLEAN);
-    JS_SetObjectData(ctx, ctx->class_proto[JS_CLASS_BOOLEAN], JS_NewBool(ctx, FALSE));
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_BOOLEAN], js_boolean_proto_funcs,
-                               countof(js_boolean_proto_funcs));
-    JS_NewGlobalCConstructor(ctx, "Boolean", js_boolean_constructor, 1,
-                             ctx->class_proto[JS_CLASS_BOOLEAN]);
-
-    /* String */
-    ctx->class_proto[JS_CLASS_STRING] = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
-                                                               JS_CLASS_STRING);
-    JS_SetObjectData(ctx, ctx->class_proto[JS_CLASS_STRING], JS_AtomToString(ctx, JS_ATOM_empty_string));
-    obj = JS_NewGlobalCConstructor(ctx, "String", js_string_constructor, 1,
-                                   ctx->class_proto[JS_CLASS_STRING]);
-    JS_SetPropertyFunctionList(ctx, obj, js_string_funcs,
-                               countof(js_string_funcs));
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_STRING], js_string_proto_funcs,
-                               countof(js_string_proto_funcs));
-
-    ctx->class_proto[JS_CLASS_STRING_ITERATOR] = JS_NewObjectProto(ctx, ctx->iterator_proto);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_STRING_ITERATOR],
-                               js_string_iterator_proto_funcs,
-                               countof(js_string_iterator_proto_funcs));
-
-    /* Math: create as autoinit object */
-    js_random_init(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->global_obj, js_math_obj, countof(js_math_obj));
-
-    /* ES6 Reflect: create as autoinit object */
-    JS_SetPropertyFunctionList(ctx, ctx->global_obj, js_reflect_obj, countof(js_reflect_obj));
-
-    /* ES6 Symbol */
-    ctx->class_proto[JS_CLASS_SYMBOL] = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_SYMBOL], js_symbol_proto_funcs,
-                               countof(js_symbol_proto_funcs));
-    obj = JS_NewGlobalCConstructor(ctx, "Symbol", js_symbol_constructor, 0,
-                                   ctx->class_proto[JS_CLASS_SYMBOL]);
-    JS_SetPropertyFunctionList(ctx, obj, js_symbol_funcs,
-                               countof(js_symbol_funcs));
-    for(i = JS_ATOM_Symbol_toPrimitive; i < JS_ATOM_END; i++) {
-        char buf[ATOM_GET_STR_BUF_SIZE];
-        const char *str, *p;
-        str = JS_AtomGetStr(ctx, buf, sizeof(buf), i);
-        /* skip "Symbol." */
-        p = strchr(str, '.');
-        if (p)
-            str = p + 1;
-        JS_DefinePropertyValueStr(ctx, obj, str, JS_AtomToValue(ctx, i), 0);
-    }
-
-    /* ES6 Generator */
-    ctx->class_proto[JS_CLASS_GENERATOR] = JS_NewObjectProto(ctx, ctx->iterator_proto);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_GENERATOR],
-                               js_generator_proto_funcs,
-                               countof(js_generator_proto_funcs));
-
-    ctx->class_proto[JS_CLASS_GENERATOR_FUNCTION] = JS_NewObjectProto(ctx, ctx->function_proto);
-    obj1 = JS_NewCFunctionMagic(ctx, js_function_constructor,
-                                "GeneratorFunction", 1,
-                                JS_CFUNC_constructor_or_func_magic, JS_FUNC_GENERATOR);
-    JS_SetPropertyFunctionList(ctx,
-                               ctx->class_proto[JS_CLASS_GENERATOR_FUNCTION],
-                               js_generator_function_proto_funcs,
-                               countof(js_generator_function_proto_funcs));
-    JS_SetConstructor2(ctx, ctx->class_proto[JS_CLASS_GENERATOR_FUNCTION],
-                       ctx->class_proto[JS_CLASS_GENERATOR],
-                       JS_PROP_CONFIGURABLE, JS_PROP_CONFIGURABLE);
-    JS_SetConstructor2(ctx, obj1, ctx->class_proto[JS_CLASS_GENERATOR_FUNCTION],
-                       0, JS_PROP_CONFIGURABLE);
-    JS_FreeValue(ctx, obj1);
-
-#ifdef CONFIG_BIGNUM
-    ctx->class_proto[JS_CLASS_BIG_INT] = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_BIG_INT],
-                               js_bigint_proto_funcs,
-                               countof(js_bigint_proto_funcs));
-    obj1 = JS_NewCFunction(ctx, js_bigint_constructor, "BigInt", 1);
-    JS_NewGlobalCConstructor2(ctx, obj1, "BigInt",
-                              ctx->class_proto[JS_CLASS_BIG_INT]);
-    JS_SetPropertyFunctionList(ctx, obj1, js_integer_funcs,
-                               countof(js_integer_funcs));
-
-    ctx->class_proto[JS_CLASS_BIG_FLOAT] = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_BIG_FLOAT],
-                               js_bigfloat_proto_funcs,
-                               countof(js_bigfloat_proto_funcs));
-    obj1 = JS_NewCFunction(ctx, js_bigfloat_constructor, "BigFloat", 1);
-    JS_NewGlobalCConstructor2(ctx, obj1, "BigFloat",
-                              ctx->class_proto[JS_CLASS_BIG_FLOAT]);
-    JS_SetPropertyFunctionList(ctx, obj1, js_bigfloat_funcs,
-                               countof(js_bigfloat_funcs));
-
-    ctx->class_proto[JS_CLASS_FLOAT_ENV] = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_FLOAT_ENV],
-                               js_float_env_proto_funcs,
-                               countof(js_float_env_proto_funcs));
-    obj1 = JS_NewGlobalCConstructorOnly(ctx, "BigFloatEnv",
-                                        js_float_env_constructor, 1,
-                                        ctx->class_proto[JS_CLASS_FLOAT_ENV]);
-    JS_SetPropertyFunctionList(ctx, obj1, js_float_env_funcs,
-                               countof(js_float_env_funcs));
-#endif
-    /* global properties */
-    JS_SetPropertyFunctionList(ctx, ctx->global_obj, js_global_funcs,
-                               countof(js_global_funcs));
-}
-
-/* Typed Arrays */
-
-static uint8_t const typed_array_size_log2[JS_TYPED_ARRAY_COUNT] = {
-    0, 0, 0, 1, 1, 2, 2,
-#ifdef CONFIG_BIGNUM
-    3, 3, /* BigInt64Array, BigUint64Array */
-#endif
-    2, 3
-};
-
-static JSValue js_array_buffer_constructor3(JSContext *ctx,
-                                            JSValueConst new_target,
-                                            uint64_t len, JSClassID class_id,
-                                            uint8_t *buf,
-                                            JSFreeArrayBufferDataFunc *free_func,
-                                            void *opaque, BOOL alloc_flag)
-{
-    JSValue obj;
-    JSArrayBuffer *abuf = NULL;
-
-    obj = js_create_from_ctor(ctx, new_target, class_id);
-    if (JS_IsException(obj))
-        return obj;
-    /* XXX: we are currently limited to 2 GB */
-    if (len > INT32_MAX) {
-        JS_ThrowRangeError(ctx, "invalid array buffer length");
-        goto fail;
-    }
-    abuf = js_malloc(ctx, sizeof(*abuf));
-    if (!abuf)
-        goto fail;
-    abuf->byte_length = len;
-    if (alloc_flag) {
-        /* the allocation must be done after the object creation */
-        abuf->data = js_mallocz(ctx, max_int(len, 1));
-        if (!abuf->data)
-            goto fail;
-    } else {
-        abuf->data = buf;
-    }
-    init_list_head(&abuf->array_list);
-    abuf->detached = FALSE;
-    abuf->shared = (class_id == JS_CLASS_SHARED_ARRAY_BUFFER);
-    abuf->opaque = opaque;
-    abuf->free_func = free_func;
-    if (alloc_flag && buf)
-        memcpy(abuf->data, buf, len);
-    JS_SetOpaque(obj, abuf);
-    return obj;
- fail:
-    JS_FreeValue(ctx, obj);
-    js_free(ctx, abuf);
-    return JS_EXCEPTION;
-}
-
-static void js_array_buffer_free(JSRuntime *rt, void *opaque, void *ptr)
-{
-    js_free_rt(rt, ptr);
-}
-
-static JSValue js_array_buffer_constructor2(JSContext *ctx,
-                                            JSValueConst new_target,
-                                            uint64_t len, JSClassID class_id)
-{
-    return js_array_buffer_constructor3(ctx, new_target, len, class_id,
-                                        NULL, js_array_buffer_free, NULL,
-                                        TRUE);
-}
-
-static JSValue js_array_buffer_constructor1(JSContext *ctx,
-                                            JSValueConst new_target,
-                                            uint64_t len)
-{
-    return js_array_buffer_constructor2(ctx, new_target, len,
-                                        JS_CLASS_ARRAY_BUFFER);
-}
-
-JSValue JS_NewArrayBuffer(JSContext *ctx, uint8_t *buf, size_t len,
-                          JSFreeArrayBufferDataFunc *free_func, void *opaque,
-                          BOOL is_shared)
-{
-    return js_array_buffer_constructor3(ctx, JS_UNDEFINED, len,
-                                        is_shared ? JS_CLASS_SHARED_ARRAY_BUFFER : JS_CLASS_ARRAY_BUFFER,
-                                        buf, free_func, opaque, FALSE);
-}
-
-/* create a new ArrayBuffer of length 'len' and copy 'buf' to it */
-JSValue JS_NewArrayBufferCopy(JSContext *ctx, const uint8_t *buf, size_t len)
-{
-    return js_array_buffer_constructor3(ctx, JS_UNDEFINED, len,
-                                        JS_CLASS_ARRAY_BUFFER,
-                                        (uint8_t *)buf,
-                                        js_array_buffer_free, NULL,
-                                        TRUE);
-}
-
-static JSValue js_array_buffer_constructor(JSContext *ctx,
-                                           JSValueConst new_target,
-                                           int argc, JSValueConst *argv)
-{
-    uint64_t len;
-    if (JS_ToIndex(ctx, &len, argv[0]))
-        return JS_EXCEPTION;
-    return js_array_buffer_constructor1(ctx, new_target, len);
-}
-
-static JSValue js_shared_array_buffer_constructor(JSContext *ctx,
-                                                  JSValueConst new_target,
-                                                  int argc, JSValueConst *argv)
-{
-    uint64_t len;
-    if (JS_ToIndex(ctx, &len, argv[0]))
-        return JS_EXCEPTION;
-    return js_array_buffer_constructor2(ctx, new_target, len,
-                                        JS_CLASS_SHARED_ARRAY_BUFFER);
-}
-
-/* also used for SharedArrayBuffer */
-static void js_array_buffer_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSArrayBuffer *abuf = p->u.array_buffer;
-    if (abuf) {
-        /* During the GC sweep phase the ArrayBuffer finalizer may be
-           called before the typed array finalizers using it, so
-           abuf->array_list is not necessarily empty. */
-        if (!JS_IsInGCSweep(rt)) {
-            assert(list_empty(&abuf->array_list));
-        }
-        if (abuf->free_func)
-            abuf->free_func(rt, abuf->opaque, abuf->data);
-        js_free_rt(rt, abuf);
-    }
-}
-
-static JSValue js_array_buffer_isView(JSContext *ctx,
-                                      JSValueConst this_val,
-                                      int argc, JSValueConst *argv)
-{
-    JSObject *p;
-    BOOL res;
-    res = FALSE;
-    if (JS_VALUE_GET_TAG(argv[0]) == JS_TAG_OBJECT) {
-        p = JS_VALUE_GET_OBJ(argv[0]);
-        if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-            p->class_id <= JS_CLASS_DATAVIEW) {
-            res = TRUE;
-        }
-    }
-    return JS_NewBool(ctx, res);
-}
-
-static const JSCFunctionListEntry js_array_buffer_funcs[] = {
-    JS_CFUNC_DEF("isView", 1, js_array_buffer_isView ),
-    JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
-};
-
-static JSValue JS_ThrowTypeErrorDetachedArrayBuffer(JSContext *ctx)
-{
-    return JS_ThrowTypeError(ctx, "ArrayBuffer is detached");
-}
-
-static JSValue js_array_buffer_get_byteLength(JSContext *ctx,
-                                              JSValueConst this_val,
-                                              int class_id)
-{
-    JSArrayBuffer *abuf = JS_GetOpaque2(ctx, this_val, class_id);
-    if (!abuf)
-        return JS_EXCEPTION;
-    if (abuf->detached)
-        return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-    return JS_NewUint32(ctx, abuf->byte_length);
-}
-
-void JS_DetachArrayBuffer(JSContext *ctx, JSValueConst obj)
-{
-    JSArrayBuffer *abuf = JS_GetOpaque(obj, JS_CLASS_ARRAY_BUFFER);
-    struct list_head *el;
-
-    if (!abuf || abuf->detached)
-        return;
-    if (abuf->free_func)
-        abuf->free_func(ctx->rt, abuf->opaque, abuf->data);
-    abuf->data = NULL;
-    abuf->byte_length = 0;
-    abuf->detached = TRUE;
-
-    list_for_each(el, &abuf->array_list) {
-        JSTypedArray *ta;
-        JSObject *p;
-
-        ta = list_entry(el, JSTypedArray, link);
-        p = ta->obj;
-        /* Note: the typed array length and offset fields are not modified */
-        if (p->class_id != JS_CLASS_DATAVIEW) {
-            p->u.array.count = 0;
-            p->u.array.u.ptr = NULL;
-        }
-    }
-}
-
-/* get an ArrayBuffer or SharedArrayBuffer */
-static JSArrayBuffer *js_get_array_buffer(JSContext *ctx, JSValueConst obj)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
-        goto fail;
-    p = JS_VALUE_GET_OBJ(obj);
-    if (p->class_id != JS_CLASS_ARRAY_BUFFER &&
-        p->class_id != JS_CLASS_SHARED_ARRAY_BUFFER) {
-    fail:
-        JS_ThrowTypeErrorInvalidClass(ctx, JS_CLASS_ARRAY_BUFFER);
-        return NULL;
-    }
-    return p->u.array_buffer;
-}
-
-/* return NULL if exception. WARNING: any JS call can detach the
-   buffer and render the returned pointer invalid */
-uint8_t *JS_GetArrayBuffer(JSContext *ctx, size_t *psize, JSValueConst obj)
-{
-    JSArrayBuffer *abuf = js_get_array_buffer(ctx, obj);
-    if (!abuf)
-        goto fail;
-    if (abuf->detached) {
-        JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-        goto fail;
-    }
-    *psize = abuf->byte_length;
-    return abuf->data;
- fail:
-    *psize = 0;
-    return NULL;
-}
-
-static JSValue js_array_buffer_slice(JSContext *ctx,
-                                     JSValueConst this_val,
-                                     int argc, JSValueConst *argv, int class_id)
-{
-    JSArrayBuffer *abuf, *new_abuf;
-    int64_t len, start, end, new_len;
-    JSValue ctor, new_obj;
-
-    abuf = JS_GetOpaque2(ctx, this_val, class_id);
-    if (!abuf)
-        return JS_EXCEPTION;
-    if (abuf->detached)
-        return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-    len = abuf->byte_length;
-
-    if (JS_ToInt64Clamp(ctx, &start, argv[0], 0, len, len))
-        return JS_EXCEPTION;
-
-    end = len;
-    if (!JS_IsUndefined(argv[1])) {
-        if (JS_ToInt64Clamp(ctx, &end, argv[1], 0, len, len))
-            return JS_EXCEPTION;
-    }
-    new_len = max_int64(end - start, 0);
-    ctor = JS_SpeciesConstructor(ctx, this_val, JS_UNDEFINED);
-    if (JS_IsException(ctor))
-        return ctor;
-    if (JS_IsUndefined(ctor)) {
-        new_obj = js_array_buffer_constructor2(ctx, JS_UNDEFINED, new_len,
-                                               class_id);
-    } else {
-        JSValue args[1];
-        args[0] = JS_NewInt64(ctx, new_len);
-        new_obj = JS_CallConstructor(ctx, ctor, 1, (JSValueConst *)args);
-        JS_FreeValue(ctx, ctor);
-        JS_FreeValue(ctx, args[0]);
-    }
-    if (JS_IsException(new_obj))
-        return new_obj;
-    new_abuf = JS_GetOpaque2(ctx, new_obj, class_id);
-    if (!new_abuf)
-        goto fail;
-    if (js_same_value(ctx, new_obj, this_val)) {
-        JS_ThrowTypeError(ctx, "cannot use identical ArrayBuffer");
-        goto fail;
-    }
-    if (new_abuf->detached) {
-        JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-        goto fail;
-    }
-    if (new_abuf->byte_length < new_len) {
-        JS_ThrowTypeError(ctx, "new ArrayBuffer is too small");
-        goto fail;
-    }
-    /* must test again because of side effects */
-    if (abuf->detached) {
-        JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-        goto fail;
-    }
-    memcpy(new_abuf->data, abuf->data + start, new_len);
-    return new_obj;
- fail:
-    JS_FreeValue(ctx, new_obj);
-    return JS_EXCEPTION;
-}
-
-static const JSCFunctionListEntry js_array_buffer_proto_funcs[] = {
-    JS_CGETSET_MAGIC_DEF("byteLength", js_array_buffer_get_byteLength, NULL, JS_CLASS_ARRAY_BUFFER ),
-    JS_CFUNC_MAGIC_DEF("slice", 2, js_array_buffer_slice, JS_CLASS_ARRAY_BUFFER ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "ArrayBuffer", JS_PROP_CONFIGURABLE ),
-};
-
-/* SharedArrayBuffer */
-
-static const JSCFunctionListEntry js_shared_array_buffer_funcs[] = {
-    JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
-};
-
-static const JSCFunctionListEntry js_shared_array_buffer_proto_funcs[] = {
-    JS_CGETSET_MAGIC_DEF("byteLength", js_array_buffer_get_byteLength, NULL, JS_CLASS_SHARED_ARRAY_BUFFER ),
-    JS_CFUNC_MAGIC_DEF("slice", 2, js_array_buffer_slice, JS_CLASS_SHARED_ARRAY_BUFFER ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "SharedArrayBuffer", JS_PROP_CONFIGURABLE ),
-};
-
-static JSObject *get_typed_array(JSContext *ctx,
-                                 JSValueConst this_val,
-                                 int is_dataview)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(this_val) != JS_TAG_OBJECT)
-        goto fail;
-    p = JS_VALUE_GET_OBJ(this_val);
-    if (is_dataview) {
-        if (p->class_id != JS_CLASS_DATAVIEW)
-            goto fail;
-    } else {
-        if (!(p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-              p->class_id <= JS_CLASS_FLOAT64_ARRAY)) {
-        fail:
-            JS_ThrowTypeError(ctx, "not a %s", is_dataview ? "DataView" : "TypedArray");
-            return NULL;
-        }
-    }
-    return p;
-}
-
-/* WARNING: 'p' must be a typed array */
-static BOOL typed_array_is_detached(JSContext *ctx, JSObject *p)
-{
-    JSTypedArray *ta = p->u.typed_array;
-    JSArrayBuffer *abuf = ta->buffer->u.array_buffer;
-    /* XXX: could simplify test by ensuring that
-       p->u.array.u.ptr is NULL iff it is detached */
-    return abuf->detached;
-}
-
-/* WARNING: 'p' must be a typed array. Works even if the array buffer
-   is detached */
-static uint32_t typed_array_get_length(JSContext *ctx, JSObject *p)
-{
-    JSTypedArray *ta = p->u.typed_array;
-    int size_log2 = typed_array_size_log2(p->class_id);
-    return ta->length >> size_log2;
-}
-
-static int validate_typed_array(JSContext *ctx, JSValueConst this_val)
-{
-    JSObject *p;
-    p = get_typed_array(ctx, this_val, 0);
-    if (!p)
-        return -1;
-    if (typed_array_is_detached(ctx, p)) {
-        JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-        return -1;
-    }
-    return 0;
-}
-
-static JSValue js_typed_array_get_length(JSContext *ctx,
-                                         JSValueConst this_val)
-{
-    JSObject *p;
-    p = get_typed_array(ctx, this_val, 0);
-    if (!p)
-        return JS_EXCEPTION;
-    return JS_NewInt32(ctx, p->u.array.count);
-}
-
-static JSValue js_typed_array_get_buffer(JSContext *ctx,
-                                         JSValueConst this_val, int is_dataview)
-{
-    JSObject *p;
-    JSTypedArray *ta;
-    p = get_typed_array(ctx, this_val, is_dataview);
-    if (!p)
-        return JS_EXCEPTION;
-    ta = p->u.typed_array;
-    return JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, ta->buffer));
-}
-
-static JSValue js_typed_array_get_byteLength(JSContext *ctx,
-                                             JSValueConst this_val,
-                                             int is_dataview)
-{
-    JSObject *p;
-    JSTypedArray *ta;
-    p = get_typed_array(ctx, this_val, is_dataview);
-    if (!p)
-        return JS_EXCEPTION;
-    if (typed_array_is_detached(ctx, p)) {
-        if (is_dataview) {
-            return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-        } else {
-            return JS_NewInt32(ctx, 0);
-        }
-    }
-    ta = p->u.typed_array;
-    return JS_NewInt32(ctx, ta->length);
-}
-
-static JSValue js_typed_array_get_byteOffset(JSContext *ctx,
-                                             JSValueConst this_val,
-                                             int is_dataview)
-{
-    JSObject *p;
-    JSTypedArray *ta;
-    p = get_typed_array(ctx, this_val, is_dataview);
-    if (!p)
-        return JS_EXCEPTION;
-    if (typed_array_is_detached(ctx, p)) {
-        if (is_dataview) {
-            return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-        } else {
-            return JS_NewInt32(ctx, 0);
-        }
-    }
-    ta = p->u.typed_array;
-    return JS_NewInt32(ctx, ta->offset);
-}
-
-static JSValue js_typed_array_get_toStringTag(JSContext *ctx,
-                                              JSValueConst this_val)
-{
-    JSObject *p;
-    if (JS_VALUE_GET_TAG(this_val) != JS_TAG_OBJECT)
-        return JS_UNDEFINED;
-    p = JS_VALUE_GET_OBJ(this_val);
-    if (!(p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-          p->class_id <= JS_CLASS_FLOAT64_ARRAY))
-        return JS_UNDEFINED;
-    return JS_AtomToString(ctx, ctx->rt->class_array[p->class_id].class_name);
-}
-
-static JSValue js_typed_array_set_internal(JSContext *ctx,
-                                           JSValueConst dst,
-                                           JSValueConst src,
-                                           JSValueConst off)
-{
-    JSObject *p;
-    JSObject *src_p;
-    uint32_t i;
-    int64_t src_len, offset;
-    JSValue val, src_obj = JS_UNDEFINED;
-
-    p = get_typed_array(ctx, dst, 0);
-    if (!p)
-        goto fail;
-    if (JS_ToInt64Sat(ctx, &offset, off))
-        goto fail;
-    if (offset < 0)
-        goto range_error;
-    if (typed_array_is_detached(ctx, p)) {
-    detached:
-        JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-        goto fail;
-    }
-    src_obj = JS_ToObject(ctx, src);
-    if (JS_IsException(src_obj))
-        goto fail;
-    src_p = JS_VALUE_GET_OBJ(src_obj);
-    if (src_p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-        src_p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
-        JSTypedArray *dest_ta = p->u.typed_array;
-        JSArrayBuffer *dest_abuf = dest_ta->buffer->u.array_buffer;
-        JSTypedArray *src_ta = src_p->u.typed_array;
-        JSArrayBuffer *src_abuf = src_ta->buffer->u.array_buffer;
-        int shift = typed_array_size_log2(p->class_id);
-
-        if (src_abuf->detached)
-            goto detached;
-
-        src_len = src_p->u.array.count;
-        if (offset > (int64_t)(p->u.array.count - src_len))
-            goto range_error;
-
-        /* copying between typed objects */
-        if (src_p->class_id == p->class_id) {
-            /* same type, use memmove */
-            memmove(dest_abuf->data + dest_ta->offset + (offset << shift),
-                    src_abuf->data + src_ta->offset, src_len << shift);
-            goto done;
-        }
-        if (dest_abuf->data == src_abuf->data) {
-            /* copying between the same buffer using different types of mappings
-               would require a temporary buffer */
-        }
-        /* otherwise, default behavior is slow but correct */
-    } else {
-        if (js_get_length64(ctx, &src_len, src_obj))
-            goto fail;
-        if (offset > (int64_t)(p->u.array.count - src_len)) {
-        range_error:
-            JS_ThrowRangeError(ctx, "invalid array length");
-            goto fail;
-        }
-    }
-    for(i = 0; i < src_len; i++) {
-        val = JS_GetPropertyUint32(ctx, src_obj, i);
-        if (JS_IsException(val))
-            goto fail;
-        if (JS_SetPropertyUint32(ctx, dst, offset + i, val) < 0)
-            goto fail;
-    }
-done:
-    JS_FreeValue(ctx, src_obj);
-    return JS_UNDEFINED;
-fail:
-    JS_FreeValue(ctx, src_obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_typed_array_set(JSContext *ctx,
-                                  JSValueConst this_val,
-                                  int argc, JSValueConst *argv)
-{
-    JSValueConst offset = JS_UNDEFINED;
-    if (argc > 1) {
-        offset = argv[1];
-    }
-    return js_typed_array_set_internal(ctx, this_val, argv[0], offset);
-}
-
-static JSValue js_create_typed_array_iterator(JSContext *ctx, JSValueConst this_val,
-                                              int argc, JSValueConst *argv, int magic)
-{
-    if (validate_typed_array(ctx, this_val))
-        return JS_EXCEPTION;
-    return js_create_array_iterator(ctx, this_val, argc, argv, magic);
-}
-
-/* return < 0 if exception */
-static int js_typed_array_get_length_internal(JSContext *ctx,
-                                              JSValueConst obj)
-{
-    JSObject *p;
-    p = get_typed_array(ctx, obj, 0);
-    if (!p)
-        return -1;
-    if (typed_array_is_detached(ctx, p)) {
-        JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-        return -1;
-    }
-    return p->u.array.count;
-}
-
-#if 0
-/* validate a typed array and return its length */
-static JSValue js_typed_array___getLength(JSContext *ctx,
-                                          JSValueConst this_val,
-                                          int argc, JSValueConst *argv)
-{
-    BOOL ignore_detached = JS_ToBool(ctx, argv[1]);
-
-    if (ignore_detached) {
-        return js_typed_array_get_length(ctx, argv[0]);
-    } else {
-        int len;
-        len = js_typed_array_get_length_internal(ctx, argv[0]);
-        if (len < 0)
-            return JS_EXCEPTION;
-        return JS_NewInt32(ctx, len);
-    }
-}
-#endif
-
-static JSValue js_typed_array_constructor(JSContext *ctx,
-                                          JSValueConst this_val,
-                                          int argc, JSValueConst *argv,
-                                          int classid);
-
-static JSValue js_typed_array_create(JSContext *ctx, JSValueConst ctor,
-                                     int argc, JSValueConst *argv)
-{
-    JSValue ret;
-    int new_len;
-    int64_t len;
-
-    ret = JS_CallConstructor(ctx, ctor, argc, argv);
-    if (JS_IsException(ret))
-        return ret;
-    /* validate the typed array */
-    new_len = js_typed_array_get_length_internal(ctx, ret);
-    if (new_len < 0)
-        goto fail;
-    if (argc == 1) {
-        /* ensure that it is large enough */
-        if (JS_ToLengthFree(ctx, &len, JS_DupValue(ctx, argv[0])))
-            goto fail;
-        if (new_len < len) {
-            JS_ThrowTypeError(ctx, "TypedArray length is too small");
-        fail:
-            JS_FreeValue(ctx, ret);
-            return JS_EXCEPTION;
-        }
-    }
-    return ret;
-}
-
-#if 0
-static JSValue js_typed_array___create(JSContext *ctx,
-                                       JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    return js_typed_array_create(ctx, argv[0], max_int(argc - 1, 0), argv + 1);
-}
-#endif
-
-static JSValue js_typed_array___speciesCreate(JSContext *ctx,
-                                              JSValueConst this_val,
-                                              int argc, JSValueConst *argv)
-{
-    JSValueConst obj;
-    JSObject *p;
-    JSValue ctor, ret;
-    int argc1;
-
-    obj = argv[0];
-    p = get_typed_array(ctx, obj, 0);
-    if (!p)
-        return JS_EXCEPTION;
-    ctor = JS_SpeciesConstructor(ctx, obj, JS_UNDEFINED);
-    if (JS_IsException(ctor))
-        return ctor;
-    argc1 = max_int(argc - 1, 0);
-    if (JS_IsUndefined(ctor)) {
-        ret = js_typed_array_constructor(ctx, JS_UNDEFINED, argc1, argv + 1,
-                                         p->class_id);
-    } else {
-        ret = js_typed_array_create(ctx, ctor, argc1, argv + 1);
-        JS_FreeValue(ctx, ctor);
-    }
-    return ret;
-}
-
-static JSValue js_typed_array_from(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    // from(items, mapfn = void 0, this_arg = void 0)
-    JSValueConst items = argv[0], mapfn, this_arg;
-    JSValueConst args[2];
-    JSValue stack[2];
-    JSValue iter, arr, r, v, v2;
-    int64_t k, len;
-    int done, mapping;
-
-    mapping = FALSE;
-    mapfn = JS_UNDEFINED;
-    this_arg = JS_UNDEFINED;
-    r = JS_UNDEFINED;
-    arr = JS_UNDEFINED;
-    stack[0] = JS_UNDEFINED;
-    stack[1] = JS_UNDEFINED;
-
-    if (argc > 1) {
-        mapfn = argv[1];
-        if (!JS_IsUndefined(mapfn)) {
-            if (check_function(ctx, mapfn))
-                goto exception;
-            mapping = 1;
-            if (argc > 2)
-                this_arg = argv[2];
-        }
-    }
-    iter = JS_GetProperty(ctx, items, JS_ATOM_Symbol_iterator);
-    if (JS_IsException(iter))
-        goto exception;
-    if (!JS_IsUndefined(iter)) {
-        JS_FreeValue(ctx, iter);
-        arr = JS_NewArray(ctx);
-        if (JS_IsException(arr))
-            goto exception;
-        stack[0] = JS_DupValue(ctx, items);
-        if (js_for_of_start(ctx, &stack[1], FALSE))
-            goto exception;
-        for (k = 0;; k++) {
-            v = JS_IteratorNext(ctx, stack[0], stack[1], 0, NULL, &done);
-            if (JS_IsException(v))
-                goto exception_close;
-            if (done)
-                break;
-            if (JS_DefinePropertyValueInt64(ctx, arr, k, v, JS_PROP_C_W_E | JS_PROP_THROW) < 0)
-                goto exception_close;
-        }
-    } else {
-        arr = JS_ToObject(ctx, items);
-        if (JS_IsException(arr))
-            goto exception;
-    }
-    if (js_get_length64(ctx, &len, arr) < 0)
-        goto exception;
-    v = JS_NewInt64(ctx, len);
-    args[0] = v;
-    r = js_typed_array_create(ctx, this_val, 1, args);
-    JS_FreeValue(ctx, v);
-    if (JS_IsException(r))
-        goto exception;
-    for(k = 0; k < len; k++) {
-        v = JS_GetPropertyInt64(ctx, arr, k);
-        if (JS_IsException(v))
-            goto exception;
-        if (mapping) {
-            args[0] = v;
-            args[1] = JS_NewInt32(ctx, k);
-            v2 = JS_Call(ctx, mapfn, this_arg, 2, args);
-            JS_FreeValue(ctx, v);
-            v = v2;
-            if (JS_IsException(v))
-                goto exception;
-        }
-        if (JS_SetPropertyInt64(ctx, r, k, v) < 0)
-            goto exception;
-    }
-    goto done;
-
- exception_close:
-    if (!JS_IsUndefined(stack[0]))
-        JS_IteratorClose(ctx, stack[0], TRUE);
- exception:
-    JS_FreeValue(ctx, r);
-    r = JS_EXCEPTION;
- done:
-    JS_FreeValue(ctx, arr);
-    JS_FreeValue(ctx, stack[0]);
-    JS_FreeValue(ctx, stack[1]);
-    return r;
-}
-
-static JSValue js_typed_array_of(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv)
-{
-    JSValue obj;
-    JSValueConst args[1];
-    int i;
-
-    args[0] = JS_NewInt32(ctx, argc);
-    obj = js_typed_array_create(ctx, this_val, 1, args);
-    if (JS_IsException(obj))
-        return obj;
-
-    for(i = 0; i < argc; i++) {
-        if (JS_SetPropertyUint32(ctx, obj, i, JS_DupValue(ctx, argv[i])) < 0) {
-            JS_FreeValue(ctx, obj);
-            return JS_EXCEPTION;
-        }
-    }
-    return obj;
-}
-
-static JSValue js_typed_array_copyWithin(JSContext *ctx, JSValueConst this_val,
-                                         int argc, JSValueConst *argv)
-{
-    JSObject *p;
-    int len, to, from, final, count, shift;
-
-    len = js_typed_array_get_length_internal(ctx, this_val);
-    if (len < 0)
-        return JS_EXCEPTION;
-
-    if (JS_ToInt32Clamp(ctx, &to, argv[0], 0, len, len))
-        return JS_EXCEPTION;
-
-    if (JS_ToInt32Clamp(ctx, &from, argv[1], 0, len, len))
-        return JS_EXCEPTION;
-
-    final = len;
-    if (argc > 2 && !JS_IsUndefined(argv[2])) {
-        if (JS_ToInt32Clamp(ctx, &final, argv[2], 0, len, len))
-            return JS_EXCEPTION;
-    }
-
-    count = min_int(final - from, len - to);
-    if (count > 0) {
-        p = JS_VALUE_GET_OBJ(this_val);
-        shift = typed_array_size_log2(p->class_id);
-        memmove(p->u.array.u.uint8_ptr + (to << shift),
-                p->u.array.u.uint8_ptr + (from << shift),
-                count << shift);
-    }
-    return JS_DupValue(ctx, this_val);
-}
-
-static JSValue js_typed_array_fill(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    JSObject *p;
-    int len, k, final, shift;
-    uint64_t v64;
-
-    len = js_typed_array_get_length_internal(ctx, this_val);
-    if (len < 0)
-        return JS_EXCEPTION;
-    p = JS_VALUE_GET_OBJ(this_val);
-
-    if (p->class_id == JS_CLASS_UINT8C_ARRAY) {
-        int32_t v;
-        if (JS_ToUint8ClampFree(ctx, &v, JS_DupValue(ctx, argv[0])))
-            return JS_EXCEPTION;
-        v64 = v;
-    } else if (p->class_id <= JS_CLASS_UINT32_ARRAY) {
-        uint32_t v;
-        if (JS_ToUint32(ctx, &v, argv[0]))
-            return JS_EXCEPTION;
-        v64 = v;
-    } else
-#ifdef CONFIG_BIGNUM
-    if (p->class_id <= JS_CLASS_BIG_UINT64_ARRAY) {
-        if (JS_ToBigInt64(ctx, (int64_t *)&v64, argv[0]))
-            return JS_EXCEPTION;
-    } else
-#endif
-    {
-        double d;
-        if (JS_ToFloat64(ctx, &d, argv[0]))
-            return JS_EXCEPTION;
-        if (p->class_id == JS_CLASS_FLOAT32_ARRAY) {
-            union {
-                float f;
-                uint32_t u32;
-            } u;
-            u.f = d;
-            v64 = u.u32;
-        } else {
-            JSFloat64Union u;
-            u.d = d;
-            v64 = u.u64;
-        }
-    }
-
-    k = 0;
-    if (argc > 1) {
-        if (JS_ToInt32Clamp(ctx, &k, argv[1], 0, len, len))
-            return JS_EXCEPTION;
-    }
-
-    final = len;
-    if (argc > 2 && !JS_IsUndefined(argv[2])) {
-        if (JS_ToInt32Clamp(ctx, &final, argv[2], 0, len, len))
-            return JS_EXCEPTION;
-    }
-
-    shift = typed_array_size_log2(p->class_id);
-    switch(shift) {
-    case 0:
-        if (k < final) {
-            memset(p->u.array.u.uint8_ptr + k, v64, final - k);
-        }
-        break;
-    case 1:
-        for(; k < final; k++) {
-            p->u.array.u.uint16_ptr[k] = v64;
-        }
-        break;
-    case 2:
-        for(; k < final; k++) {
-            p->u.array.u.uint32_ptr[k] = v64;
-        }
-        break;
-    case 3:
-        for(; k < final; k++) {
-            p->u.array.u.uint64_ptr[k] = v64;
-        }
-        break;
-    default:
-        abort();
-    }
-    return JS_DupValue(ctx, this_val);
-}
-
-static JSValue js_typed_array_find(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv, int findIndex)
-{
-    JSValueConst func, this_arg;
-    JSValueConst args[3];
-    JSValue val, index_val, res;
-    int len, k;
-
-    val = JS_UNDEFINED;
-    len = js_typed_array_get_length_internal(ctx, this_val);
-    if (len < 0)
-        goto exception;
-
-    func = argv[0];
-    if (check_function(ctx, func))
-        goto exception;
-
-    this_arg = JS_UNDEFINED;
-    if (argc > 1)
-        this_arg = argv[1];
-
-    for(k = 0; k < len; k++) {
-        index_val = JS_NewInt32(ctx, k);
-        val = JS_GetPropertyValue(ctx, this_val, index_val);
-        if (JS_IsException(val))
-            goto exception;
-        args[0] = val;
-        args[1] = index_val;
-        args[2] = this_val;
-        res = JS_Call(ctx, func, this_arg, 3, args);
-        if (JS_IsException(res))
-            goto exception;
-        if (JS_ToBoolFree(ctx, res)) {
-            if (findIndex) {
-                JS_FreeValue(ctx, val);
-                return index_val;
-            } else {
-                return val;
-            }
-        }
-        JS_FreeValue(ctx, val);
-    }
-    if (findIndex)
-        return JS_NewInt32(ctx, -1);
-    else
-        return JS_UNDEFINED;
-
-exception:
-    JS_FreeValue(ctx, val);
-    return JS_EXCEPTION;
-}
-
-#define special_indexOf 0
-#define special_lastIndexOf 1
-#define special_includes -1
-
-static JSValue js_typed_array_indexOf(JSContext *ctx, JSValueConst this_val,
-                                      int argc, JSValueConst *argv, int special)
-{
-    JSObject *p;
-    int len, tag, is_int, is_big, k, stop, inc, res = -1;
-    int64_t v64;
-    double d;
-    float f;
-
-    len = js_typed_array_get_length_internal(ctx, this_val);
-    if (len < 0)
-        goto exception;
-    if (len == 0)
-        goto done;
-
-    if (special == special_lastIndexOf) {
-        k = len - 1;
-        if (argc > 1) {
-            if (JS_ToFloat64(ctx, &d, argv[1]))
-                goto exception;
-            if (isnan(d)) {
-                k = 0;
-            } else {
-                if (d >= 0) {
-                    if (d < k) {
-                        k = d;
-                    }
-                } else {
-                    d += len;
-                    if (d < 0)
-                        goto done;
-                    k = d;
-                }
-            }
-        }
-        stop = -1;
-        inc = -1;
-    } else {
-        k = 0;
-        if (argc > 1) {
-            if (JS_ToInt32Clamp(ctx, &k, argv[1], 0, len, len))
-                goto exception;
-        }
-        stop = len;
-        inc = 1;
-    }
-
-    is_big = 0;
-    is_int = 0; /* avoid warning */
-    v64 = 0; /* avoid warning */
-    tag = JS_VALUE_GET_NORM_TAG(argv[0]);
-    if (tag == JS_TAG_INT) {
-        is_int = 1;
-        v64 = JS_VALUE_GET_INT(argv[0]);
-        d = v64;
-    } else
-    if (tag == JS_TAG_FLOAT64) {
-        d = JS_VALUE_GET_FLOAT64(argv[0]);
-        v64 = d;
-        is_int = (v64 == d);
-    } else
-#ifdef CONFIG_BIGNUM
-    if (tag == JS_TAG_BIG_INT || tag == JS_TAG_BIG_FLOAT) {
-        /* will a generic loop for bigint and bigfloat */
-        /* XXX: should use the generic loop in math_mode? */
-        is_big = 1;
-    } else
-#endif
-    {
-        goto done;
-    }
-
-    p = JS_VALUE_GET_OBJ(this_val);
-    switch (p->class_id) {
-    case JS_CLASS_INT8_ARRAY:
-        if (is_int && (int8_t)v64 == v64)
-            goto scan8;
-        break;
-    case JS_CLASS_UINT8C_ARRAY:
-    case JS_CLASS_UINT8_ARRAY:
-        if (is_int && (uint8_t)v64 == v64) {
-            const uint8_t *pv, *pp;
-            uint16_t v;
-        scan8:
-            pv = p->u.array.u.uint8_ptr;
-            v = v64;
-            if (inc > 0) {
-                pp = memchr(pv + k, v, len - k);
-                if (pp)
-                    res = pp - pv;
-            } else {
-                for (; k != stop; k += inc) {
-                    if (pv[k] == v) {
-                        res = k;
-                        break;
-                    }
-                }
-            }
-        }
-        break;
-    case JS_CLASS_INT16_ARRAY:
-        if (is_int && (int16_t)v64 == v64)
-            goto scan16;
-        break;
-    case JS_CLASS_UINT16_ARRAY:
-        if (is_int && (uint16_t)v64 == v64) {
-            const uint16_t *pv;
-            uint16_t v;
-        scan16:
-            pv = p->u.array.u.uint16_ptr;
-            v = v64;
-            for (; k != stop; k += inc) {
-                if (pv[k] == v) {
-                    res = k;
-                    break;
-                }
-            }
-        }
-        break;
-    case JS_CLASS_INT32_ARRAY:
-        if (is_int && (int32_t)v64 == v64)
-            goto scan32;
-        break;
-    case JS_CLASS_UINT32_ARRAY:
-        if (is_int && (uint32_t)v64 == v64) {
-            const uint32_t *pv;
-            uint32_t v;
-        scan32:
-            pv = p->u.array.u.uint32_ptr;
-            v = v64;
-            for (; k != stop; k += inc) {
-                if (pv[k] == v) {
-                    res = k;
-                    break;
-                }
-            }
-        }
-        break;
-    case JS_CLASS_FLOAT32_ARRAY:
-        if (is_big)
-            break;
-        if (isnan(d)) {
-            const float *pv = p->u.array.u.float_ptr;
-            /* special case: indexOf returns -1, includes finds NaN */
-            if (special != special_includes)
-                goto done;
-            for (; k != stop; k += inc) {
-                if (isnan(pv[k])) {
-                    res = k;
-                    break;
-                }
-            }
-        } else if ((f = (float)d) == d) {
-            const float *pv = p->u.array.u.float_ptr;
-            for (; k != stop; k += inc) {
-                if (pv[k] == f) {
-                    res = k;
-                    break;
-                }
-            }
-        }
-        break;
-    case JS_CLASS_FLOAT64_ARRAY:
-        if (is_big)
-            break;
-        if (isnan(d)) {
-            const double *pv = p->u.array.u.double_ptr;
-            /* special case: indexOf returns -1, includes finds NaN */
-            if (special != special_includes)
-                goto done;
-            for (; k != stop; k += inc) {
-                if (isnan(pv[k])) {
-                    res = k;
-                    break;
-                }
-            }
-        } else {
-            const double *pv = p->u.array.u.double_ptr;
-            for (; k != stop; k += inc) {
-                if (pv[k] == d) {
-                    res = k;
-                    break;
-                }
-            }
-        }
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_CLASS_BIG_INT64_ARRAY:
-    case JS_CLASS_BIG_UINT64_ARRAY:
-        if (is_big || is_strict_mode(ctx)) {
-            /* generic loop for bignums, argv[0] is a bignum != NaN */
-            /* XXX: optimize with explicit values */
-            for (; k != stop; k += inc) {
-                JSValue v = JS_GetPropertyUint32(ctx, this_val, k);
-                int ret;
-                if (JS_IsException(v))
-                    goto exception;
-                ret = js_same_value_zero(ctx, v, argv[0]);
-                JS_FreeValue(ctx, v);
-                if (ret) {
-                    if (ret < 0)
-                        goto exception;
-                    res = k;
-                    break;
-                }
-            }
-        }
-        break;
-#endif
-    }
-
-done:
-    if (special == special_includes)
-        return JS_NewBool(ctx, res >= 0);
-    else
-        return JS_NewInt32(ctx, res);
-
-exception:
-    return JS_EXCEPTION;
-}
-
-static JSValue js_typed_array_join(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv, int toLocaleString)
-{
-    JSValue sep = JS_UNDEFINED, el;
-    StringBuffer b_s, *b = &b_s;
-    JSString *p = NULL;
-    int i, n;
-    int c;
-
-    n = js_typed_array_get_length_internal(ctx, this_val);
-    if (n < 0)
-        goto exception;
-
-    c = ',';    /* default separator */
-    if (!toLocaleString && argc > 0 && !JS_IsUndefined(argv[0])) {
-        sep = JS_ToString(ctx, argv[0]);
-        if (JS_IsException(sep))
-            goto exception;
-        p = JS_VALUE_GET_STRING(sep);
-        if (p->len == 1 && !p->is_wide_char)
-            c = p->u.str8[0];
-        else
-            c = -1;
-    }
-    string_buffer_init(ctx, b, 0);
-
-    /* XXX: optimize with direct access */
-    for(i = 0; i < n; i++) {
-        if (i > 0) {
-            if (c >= 0) {
-                if (string_buffer_putc8(b, c))
-                    goto fail;
-            } else {
-                if (string_buffer_concat(b, p, 0, p->len))
-                    goto fail;
-            }
-        }
-        el = JS_GetPropertyUint32(ctx, this_val, i);
-        if (JS_IsException(el))
-            goto fail;
-        if (toLocaleString) {
-            el = JS_ToLocaleStringFree(ctx, el);
-        }
-        if (string_buffer_concat_value_free(b, el))
-            goto fail;
-    }
-    JS_FreeValue(ctx, sep);
-    return string_buffer_end(b);
-
-fail:
-    string_buffer_free(b);
-    JS_FreeValue(ctx, sep);
-exception:
-    return JS_EXCEPTION;
-}
-
-static JSValue js_typed_array_reverse(JSContext *ctx, JSValueConst this_val,
-                                      int argc, JSValueConst *argv)
-{
-    JSObject *p;
-    int len;
-
-    len = js_typed_array_get_length_internal(ctx, this_val);
-    if (len < 0)
-        return JS_EXCEPTION;
-    if (len > 0) {
-        p = JS_VALUE_GET_OBJ(this_val);
-        switch (typed_array_size_log2(p->class_id)) {
-        case 0:
-            {
-                uint8_t *p1 = p->u.array.u.uint8_ptr;
-                uint8_t *p2 = p1 + len - 1;
-                while (p1 < p2) {
-                    uint8_t v = *p1;
-                    *p1++ = *p2;
-                    *p2-- = v;
-                }
-            }
-            break;
-        case 1:
-            {
-                uint16_t *p1 = p->u.array.u.uint16_ptr;
-                uint16_t *p2 = p1 + len - 1;
-                while (p1 < p2) {
-                    uint16_t v = *p1;
-                    *p1++ = *p2;
-                    *p2-- = v;
-                }
-            }
-            break;
-        case 2:
-            {
-                uint32_t *p1 = p->u.array.u.uint32_ptr;
-                uint32_t *p2 = p1 + len - 1;
-                while (p1 < p2) {
-                    uint32_t v = *p1;
-                    *p1++ = *p2;
-                    *p2-- = v;
-                }
-            }
-            break;
-        case 3:
-            {
-                uint64_t *p1 = p->u.array.u.uint64_ptr;
-                uint64_t *p2 = p1 + len - 1;
-                while (p1 < p2) {
-                    uint64_t v = *p1;
-                    *p1++ = *p2;
-                    *p2-- = v;
-                }
-            }
-            break;
-        default:
-            abort();
-        }
-    }
-    return JS_DupValue(ctx, this_val);
-}
-
-static JSValue js_typed_array_slice(JSContext *ctx, JSValueConst this_val,
-                                    int argc, JSValueConst *argv)
-{
-    JSValueConst args[2];
-    JSValue arr, val;
-    JSObject *p, *p1;
-    int n, len, start, final, count, shift;
-
-    arr = JS_UNDEFINED;
-    len = js_typed_array_get_length_internal(ctx, this_val);
-    if (len < 0)
-        goto exception;
-
-    if (JS_ToInt32Clamp(ctx, &start, argv[0], 0, len, len))
-        goto exception;
-    final = len;
-    if (!JS_IsUndefined(argv[1])) {
-        if (JS_ToInt32Clamp(ctx, &final, argv[1], 0, len, len))
-            goto exception;
-    }
-    count = max_int(final - start, 0);
-
-    p = get_typed_array(ctx, this_val, 0);
-    if (p == NULL)
-        goto exception;
-    shift = typed_array_size_log2(p->class_id);
-
-    args[0] = this_val;
-    args[1] = JS_NewInt32(ctx, count);
-    arr = js_typed_array___speciesCreate(ctx, JS_UNDEFINED, 2, args);
-    if (JS_IsException(arr))
-        goto exception;
-
-    if (count > 0) {
-        if (validate_typed_array(ctx, this_val)
-        ||  validate_typed_array(ctx, arr))
-            goto exception;
-
-        p1 = get_typed_array(ctx, arr, 0);
-        if (p1 != NULL && p->class_id == p1->class_id &&
-            typed_array_get_length(ctx, p1) >= count &&
-            typed_array_get_length(ctx, p) >= start + count) {
-            memcpy(p1->u.array.u.uint8_ptr,
-                   p->u.array.u.uint8_ptr + (start << shift),
-                   count << shift);
-        } else {
-            for (n = 0; n < count; n++) {
-                val = JS_GetPropertyValue(ctx, this_val, JS_NewInt32(ctx, start + n));
-                if (JS_IsException(val))
-                    goto exception;
-                if (JS_SetPropertyValue(ctx, arr, JS_NewInt32(ctx, n), val,
-                                        JS_PROP_THROW) < 0)
-                    goto exception;
-            }
-        }
-    }
-    return arr;
-
- exception:
-    JS_FreeValue(ctx, arr);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_typed_array_subarray(JSContext *ctx, JSValueConst this_val,
-                                       int argc, JSValueConst *argv)
-{
-    JSValueConst args[4];
-    JSValue arr, byteOffset, ta_buffer;
-    JSObject *p;
-    int len, start, final, count, shift, offset;
-
-    p = get_typed_array(ctx, this_val, 0);
-    if (!p)
-        goto exception;
-    len = p->u.array.count;
-    if (JS_ToInt32Clamp(ctx, &start, argv[0], 0, len, len))
-        goto exception;
-
-    final = len;
-    if (!JS_IsUndefined(argv[1])) {
-        if (JS_ToInt32Clamp(ctx, &final, argv[1], 0, len, len))
-            goto exception;
-    }
-    count = max_int(final - start, 0);
-    byteOffset = js_typed_array_get_byteOffset(ctx, this_val, 0);
-    if (JS_IsException(byteOffset))
-        goto exception;
-    shift = typed_array_size_log2(p->class_id);
-    offset = JS_VALUE_GET_INT(byteOffset) + (start << shift);
-    JS_FreeValue(ctx, byteOffset);
-    ta_buffer = js_typed_array_get_buffer(ctx, this_val, 0);
-    if (JS_IsException(ta_buffer))
-        goto exception;
-    args[0] = this_val;
-    args[1] = ta_buffer;
-    args[2] = JS_NewInt32(ctx, offset);
-    args[3] = JS_NewInt32(ctx, count);
-    arr = js_typed_array___speciesCreate(ctx, JS_UNDEFINED, 4, args);
-    JS_FreeValue(ctx, ta_buffer);
-    return arr;
-
- exception:
-    return JS_EXCEPTION;
-}
-
-/* TypedArray.prototype.sort */
-
-static int js_cmp_doubles(double x, double y)
-{
-    if (isnan(x))    return isnan(y) ? 0 : +1;
-    if (isnan(y))    return -1;
-    if (x < y)       return -1;
-    if (x > y)       return 1;
-    if (x != 0)      return 0;
-    if (signbit(x))  return signbit(y) ? 0 : -1;
-    else             return signbit(y) ? -1 : 0;
-}
-
-static int js_TA_cmp_int8(const void *a, const void *b, void *opaque) {
-    return *(const int8_t *)a - *(const int8_t *)b;
-}
-
-static int js_TA_cmp_uint8(const void *a, const void *b, void *opaque) {
-    return *(const uint8_t *)a - *(const uint8_t *)b;
-}
-
-static int js_TA_cmp_int16(const void *a, const void *b, void *opaque) {
-    return *(const int16_t *)a - *(const int16_t *)b;
-}
-
-static int js_TA_cmp_uint16(const void *a, const void *b, void *opaque) {
-    return *(const uint16_t *)a - *(const uint16_t *)b;
-}
-
-static int js_TA_cmp_int32(const void *a, const void *b, void *opaque) {
-    int32_t x = *(const int32_t *)a;
-    int32_t y = *(const int32_t *)b;
-    return (y < x) - (y > x);
-}
-
-static int js_TA_cmp_uint32(const void *a, const void *b, void *opaque) {
-    uint32_t x = *(const uint32_t *)a;
-    uint32_t y = *(const uint32_t *)b;
-    return (y < x) - (y > x);
-}
-
-#ifdef CONFIG_BIGNUM
-static int js_TA_cmp_int64(const void *a, const void *b, void *opaque) {
-    int64_t x = *(const int64_t *)a;
-    int64_t y = *(const int64_t *)b;
-    return (y < x) - (y > x);
-}
-
-static int js_TA_cmp_uint64(const void *a, const void *b, void *opaque) {
-    uint64_t x = *(const uint64_t *)a;
-    uint64_t y = *(const uint64_t *)b;
-    return (y < x) - (y > x);
-}
-#endif
-
-static int js_TA_cmp_float32(const void *a, const void *b, void *opaque) {
-    return js_cmp_doubles(*(const float *)a, *(const float *)b);
-}
-
-static int js_TA_cmp_float64(const void *a, const void *b, void *opaque) {
-    return js_cmp_doubles(*(const double *)a, *(const double *)b);
-}
-
-static JSValue js_TA_get_int8(JSContext *ctx, const void *a) {
-    return JS_NewInt32(ctx, *(const int8_t *)a);
-}
-
-static JSValue js_TA_get_uint8(JSContext *ctx, const void *a) {
-    return JS_NewInt32(ctx, *(const uint8_t *)a);
-}
-
-static JSValue js_TA_get_int16(JSContext *ctx, const void *a) {
-    return JS_NewInt32(ctx, *(const int16_t *)a);
-}
-
-static JSValue js_TA_get_uint16(JSContext *ctx, const void *a) {
-    return JS_NewInt32(ctx, *(const uint16_t *)a);
-}
-
-static JSValue js_TA_get_int32(JSContext *ctx, const void *a) {
-    return JS_NewInt32(ctx, *(const int32_t *)a);
-}
-
-static JSValue js_TA_get_uint32(JSContext *ctx, const void *a) {
-    return JS_NewUint32(ctx, *(const uint32_t *)a);
-}
-
-#ifdef CONFIG_BIGNUM
-static JSValue js_TA_get_int64(JSContext *ctx, const void *a) {
-    return JS_NewBigInt64(ctx, *(int64_t *)a);
-}
-
-static JSValue js_TA_get_uint64(JSContext *ctx, const void *a) {
-    return JS_NewBigUint64(ctx, *(uint64_t *)a);
-}
-#endif
-
-static JSValue js_TA_get_float32(JSContext *ctx, const void *a) {
-    return __JS_NewFloat64(ctx, *(const float *)a);
-}
-
-static JSValue js_TA_get_float64(JSContext *ctx, const void *a) {
-    return __JS_NewFloat64(ctx, *(const double *)a);
-}
-
-static void js_TA_swap_uint8(void *a, void *b) {
-    uint8_t x = *(uint8_t *)a;
-    *(uint8_t *)a = *(uint8_t *)b;
-    *(uint8_t *)b = x;
-}
-
-static void js_TA_swap_uint16(void *a, void *b) {
-    uint16_t x = *(uint16_t *)a;
-    *(uint16_t *)a = *(uint16_t *)b;
-    *(uint16_t *)b = x;
-}
-
-static void js_TA_swap_uint32(void *a, void *b) {
-    uint32_t x = *(uint32_t *)a;
-    *(uint32_t *)a = *(uint32_t *)b;
-    *(uint32_t *)b = x;
-}
-
-static void js_TA_swap_uint64(void *a, void *b) {
-    uint64_t x = *(uint64_t *)a;
-    *(uint64_t *)a = *(uint64_t *)b;
-    *(uint64_t *)b = x;
-}
-
-struct TA_sort_context {
-    JSContext *ctx;
-    int exception;
-    JSValueConst arr;
-    JSValueConst cmp;
-    JSValue (*getfun)(JSContext *ctx, const void *a);
-    int (*cmpfun)(const void *a, const void *b, void *opaque);
-    void (*swapfun)(void *a, void *b);
-};
-
-static int js_TA_cmp_generic(const void *a, const void *b, void *opaque) {
-    struct TA_sort_context *psc = opaque;
-    JSContext *ctx = psc->ctx;
-    JSValueConst argv[2];
-    JSValue res;
-    int cmp;
-
-    cmp = 0;
-    if (!psc->exception) {
-        argv[0] = psc->getfun(ctx, a);
-        argv[1] = psc->getfun(ctx, b);
-        res = JS_Call(ctx, psc->cmp, JS_UNDEFINED, 2, argv);
-        if (JS_IsException(res)) {
-            psc->exception = 1;
-            goto done;
-        }
-        if (JS_VALUE_GET_TAG(res) == JS_TAG_INT) {
-            int val = JS_VALUE_GET_INT(res);
-            cmp = (val > 0) - (val < 0);
-        } else {
-            double val;
-            if (JS_ToFloat64Free(ctx, &val, res) < 0) {
-                psc->exception = 1;
-                goto done;
-            } else {
-                cmp = (val > 0) - (val < 0);
-            }
-        }
-        if (validate_typed_array(ctx, psc->arr) < 0) {
-            psc->exception = 1;
-        }
-    done:
-        JS_FreeValue(ctx, (JSValue)argv[0]);
-        JS_FreeValue(ctx, (JSValue)argv[1]);
-    }
-    return cmp;
-}
-
-static JSValue js_typed_array_sort(JSContext *ctx, JSValueConst this_val,
-                                   int argc, JSValueConst *argv)
-{
-    JSObject *p;
-    int len, elt_size;
-    struct TA_sort_context tsc;
-    void *array_ptr, *array_copy = NULL, *array_org;
-    int (*cmpfun)(const void *a, const void *b, void *opaque);
-
-    tsc.ctx = ctx;
-    tsc.exception = 0;
-    tsc.arr = this_val;
-    tsc.cmp = argv[0];
-
-    len = js_typed_array_get_length_internal(ctx, this_val);
-    if (len < 0)
-        return JS_EXCEPTION;
-    if (!JS_IsUndefined(tsc.cmp) && check_function(ctx, tsc.cmp))
-        return JS_EXCEPTION;
-
-    if (len > 1) {
-        p = JS_VALUE_GET_OBJ(this_val);
-        switch (p->class_id) {
-        case JS_CLASS_INT8_ARRAY:
-            tsc.getfun = js_TA_get_int8;
-            tsc.cmpfun = js_TA_cmp_int8;
-            tsc.swapfun = js_TA_swap_uint8;
-            break;
-        case JS_CLASS_UINT8C_ARRAY:
-        case JS_CLASS_UINT8_ARRAY:
-            tsc.getfun = js_TA_get_uint8;
-            tsc.cmpfun = js_TA_cmp_uint8;
-            tsc.swapfun = js_TA_swap_uint8;
-            break;
-        case JS_CLASS_INT16_ARRAY:
-            tsc.getfun = js_TA_get_int16;
-            tsc.cmpfun = js_TA_cmp_int16;
-            tsc.swapfun = js_TA_swap_uint16;
-            break;
-        case JS_CLASS_UINT16_ARRAY:
-            tsc.getfun = js_TA_get_uint16;
-            tsc.cmpfun = js_TA_cmp_uint16;
-            tsc.swapfun = js_TA_swap_uint16;
-            break;
-        case JS_CLASS_INT32_ARRAY:
-            tsc.getfun = js_TA_get_int32;
-            tsc.cmpfun = js_TA_cmp_int32;
-            tsc.swapfun = js_TA_swap_uint32;
-            break;
-        case JS_CLASS_UINT32_ARRAY:
-            tsc.getfun = js_TA_get_uint32;
-            tsc.cmpfun = js_TA_cmp_uint32;
-            tsc.swapfun = js_TA_swap_uint32;
-            break;
-#ifdef CONFIG_BIGNUM
-        case JS_CLASS_BIG_INT64_ARRAY:
-            tsc.getfun = js_TA_get_int64;
-            tsc.cmpfun = js_TA_cmp_int64;
-            tsc.swapfun = js_TA_swap_uint64;
-            break;
-        case JS_CLASS_BIG_UINT64_ARRAY:
-            tsc.getfun = js_TA_get_uint64;
-            tsc.cmpfun = js_TA_cmp_uint64;
-            tsc.swapfun = js_TA_swap_uint64;
-            break;
-#endif
-        case JS_CLASS_FLOAT32_ARRAY:
-            tsc.getfun = js_TA_get_float32;
-            tsc.cmpfun = js_TA_cmp_float32;
-            tsc.swapfun = js_TA_swap_uint32;
-            break;
-        case JS_CLASS_FLOAT64_ARRAY:
-            tsc.getfun = js_TA_get_float64;
-            tsc.cmpfun = js_TA_cmp_float64;
-            tsc.swapfun = js_TA_swap_uint64;
-            break;
-        default:
-            abort();
-        }
-        array_ptr = array_org = p->u.array.u.ptr;
-        elt_size = 1 << typed_array_size_log2(p->class_id);
-        cmpfun = tsc.cmpfun;
-        if (!JS_IsUndefined(tsc.cmp)) {
-            /* must copy internal array if user defined comparison function to
-               avoid crash if the array gets reallocated by the compare function */
-            array_copy = js_malloc(ctx, len * elt_size);
-            if (array_copy == NULL)
-                return JS_EXCEPTION;
-            array_ptr = memcpy(array_copy, array_ptr, len * elt_size);
-            cmpfun = js_TA_cmp_generic;
-        }
-        rqsort(array_ptr, len, elt_size, cmpfun, &tsc);
-        if (tsc.exception) {
-            js_free(ctx, array_copy);
-            return JS_EXCEPTION;
-        }
-        if (array_ptr == array_copy) {
-            if (array_org == p->u.array.u.ptr)
-                memcpy(array_org, array_copy, len * elt_size);
-            js_free(ctx, array_copy);
-        }
-    }
-    return JS_DupValue(ctx, this_val);
-}
-
-static const JSCFunctionListEntry js_typed_array_base_funcs[] = {
-    JS_CFUNC_DEF("from", 1, js_typed_array_from ),
-    JS_CFUNC_DEF("of", 0, js_typed_array_of ),
-    JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
-    //JS_CFUNC_DEF("__getLength", 2, js_typed_array___getLength ),
-    //JS_CFUNC_DEF("__create", 2, js_typed_array___create ),
-    //JS_CFUNC_DEF("__speciesCreate", 2, js_typed_array___speciesCreate ),
-};
-
-static const JSCFunctionListEntry js_typed_array_base_proto_funcs[] = {
-    JS_CGETSET_DEF("length", js_typed_array_get_length, NULL ),
-    JS_CGETSET_MAGIC_DEF("buffer", js_typed_array_get_buffer, NULL, 0 ),
-    JS_CGETSET_MAGIC_DEF("byteLength", js_typed_array_get_byteLength, NULL, 0 ),
-    JS_CGETSET_MAGIC_DEF("byteOffset", js_typed_array_get_byteOffset, NULL, 0 ),
-    JS_CFUNC_DEF("set", 1, js_typed_array_set ),
-    JS_CFUNC_MAGIC_DEF("values", 0, js_create_typed_array_iterator, JS_ITERATOR_KIND_VALUE ),
-    JS_ALIAS_DEF("[Symbol.iterator]", "values" ),
-    JS_CFUNC_MAGIC_DEF("keys", 0, js_create_typed_array_iterator, JS_ITERATOR_KIND_KEY ),
-    JS_CFUNC_MAGIC_DEF("entries", 0, js_create_typed_array_iterator, JS_ITERATOR_KIND_KEY_AND_VALUE ),
-    JS_CGETSET_DEF("[Symbol.toStringTag]", js_typed_array_get_toStringTag, NULL ),
-    JS_CFUNC_DEF("copyWithin", 2, js_typed_array_copyWithin ),
-    JS_CFUNC_MAGIC_DEF("every", 1, js_array_every, special_every | special_TA ),
-    JS_CFUNC_MAGIC_DEF("some", 1, js_array_every, special_some | special_TA ),
-    JS_CFUNC_MAGIC_DEF("forEach", 1, js_array_every, special_forEach | special_TA ),
-    JS_CFUNC_MAGIC_DEF("map", 1, js_array_every, special_map | special_TA ),
-    JS_CFUNC_MAGIC_DEF("filter", 1, js_array_every, special_filter | special_TA ),
-    JS_CFUNC_MAGIC_DEF("reduce", 1, js_array_reduce, special_reduce | special_TA ),
-    JS_CFUNC_MAGIC_DEF("reduceRight", 1, js_array_reduce, special_reduceRight | special_TA ),
-    JS_CFUNC_DEF("fill", 1, js_typed_array_fill ),
-    JS_CFUNC_MAGIC_DEF("find", 1, js_typed_array_find, 0 ),
-    JS_CFUNC_MAGIC_DEF("findIndex", 1, js_typed_array_find, 1 ),
-    JS_CFUNC_DEF("reverse", 0, js_typed_array_reverse ),
-    JS_CFUNC_DEF("slice", 2, js_typed_array_slice ),
-    JS_CFUNC_DEF("subarray", 2, js_typed_array_subarray ),
-    JS_CFUNC_DEF("sort", 1, js_typed_array_sort ),
-    JS_CFUNC_MAGIC_DEF("join", 1, js_typed_array_join, 0 ),
-    JS_CFUNC_MAGIC_DEF("toLocaleString", 0, js_typed_array_join, 1 ),
-    JS_CFUNC_MAGIC_DEF("indexOf", 1, js_typed_array_indexOf, special_indexOf ),
-    JS_CFUNC_MAGIC_DEF("lastIndexOf", 1, js_typed_array_indexOf, special_lastIndexOf ),
-    JS_CFUNC_MAGIC_DEF("includes", 1, js_typed_array_indexOf, special_includes ),
-    //JS_ALIAS_BASE_DEF("toString", "toString", 2 /* Array.prototype. */), @@@
-};
-
-static JSValue js_typed_array_base_constructor(JSContext *ctx,
-                                               JSValueConst this_val,
-                                               int argc, JSValueConst *argv)
-{
-    return JS_ThrowTypeError(ctx, "cannot be called");
-}
-
-/* 'obj' must be an allocated typed array object */
-static int typed_array_init(JSContext *ctx, JSValueConst obj,
-                            JSValue buffer, uint64_t offset, uint64_t len)
-{
-    JSTypedArray *ta;
-    JSObject *p, *pbuffer;
-    JSArrayBuffer *abuf;
-    int size_log2;
-
-    p = JS_VALUE_GET_OBJ(obj);
-    size_log2 = typed_array_size_log2(p->class_id);
-    ta = js_malloc(ctx, sizeof(*ta));
-    if (!ta) {
-        JS_FreeValue(ctx, buffer);
-        return -1;
-    }
-    pbuffer = JS_VALUE_GET_OBJ(buffer);
-    abuf = pbuffer->u.array_buffer;
-    ta->obj = p;
-    ta->buffer = pbuffer;
-    ta->offset = offset;
-    ta->length = len << size_log2;
-    list_add_tail(&ta->link, &abuf->array_list);
-    p->u.typed_array = ta;
-    p->u.array.count = len;
-    p->u.array.u.ptr = abuf->data + offset;
-    return 0;
-}
-
-
-static JSValue js_array_from_iterator(JSContext *ctx, uint32_t *plen,
-                                      JSValueConst obj, JSValueConst method)
-{
-    JSValue arr, iter, next_method = JS_UNDEFINED, val;
-    BOOL done;
-    uint32_t k;
-
-    *plen = 0;
-    arr = JS_NewArray(ctx);
-    if (JS_IsException(arr))
-        return arr;
-    iter = JS_GetIterator2(ctx, obj, method);
-    if (JS_IsException(iter))
-        goto fail;
-    next_method = JS_GetProperty(ctx, iter, JS_ATOM_next);
-    if (JS_IsException(next_method))
-        goto fail;
-    k = 0;
-    for(;;) {
-        val = JS_IteratorNext(ctx, iter, next_method, 0, NULL, &done);
-        if (JS_IsException(val))
-            goto fail;
-        if (done) {
-            JS_FreeValue(ctx, val);
-            break;
-        }
-        if (JS_CreateDataPropertyUint32(ctx, arr, k, val, JS_PROP_THROW) < 0)
-            goto fail;
-        k++;
-    }
-    JS_FreeValue(ctx, next_method);
-    JS_FreeValue(ctx, iter);
-    *plen = k;
-    return arr;
- fail:
-    JS_FreeValue(ctx, next_method);
-    JS_FreeValue(ctx, iter);
-    JS_FreeValue(ctx, arr);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_typed_array_constructor_obj(JSContext *ctx,
-                                              JSValueConst new_target,
-                                              JSValueConst obj,
-                                              int classid)
-{
-    JSValue iter, ret, arr = JS_UNDEFINED, val, buffer;
-    uint32_t i;
-    int size_log2;
-    int64_t len;
-
-    size_log2 = typed_array_size_log2(classid);
-    ret = js_create_from_ctor(ctx, new_target, classid);
-    if (JS_IsException(ret))
-        return JS_EXCEPTION;
-
-    iter = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_iterator);
-    if (JS_IsException(iter))
-        goto fail;
-    if (!JS_IsUndefined(iter) && !JS_IsNull(iter)) {
-        uint32_t len1;
-        arr = js_array_from_iterator(ctx, &len1, obj, iter);
-        JS_FreeValue(ctx, iter);
-        if (JS_IsException(arr))
-            goto fail;
-        len = len1;
-    } else {
-        if (js_get_length64(ctx, &len, obj))
-            goto fail;
-        arr = JS_DupValue(ctx, obj);
-    }
-
-    buffer = js_array_buffer_constructor1(ctx, JS_UNDEFINED,
-                                          len << size_log2);
-    if (JS_IsException(buffer))
-        goto fail;
-    if (typed_array_init(ctx, ret, buffer, 0, len))
-        goto fail;
-
-    for(i = 0; i < len; i++) {
-        val = JS_GetPropertyUint32(ctx, arr, i);
-        if (JS_IsException(val))
-            goto fail;
-        if (JS_SetPropertyUint32(ctx, ret, i, val) < 0)
-            goto fail;
-    }
-    JS_FreeValue(ctx, arr);
-    return ret;
- fail:
-    JS_FreeValue(ctx, arr);
-    JS_FreeValue(ctx, ret);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_typed_array_constructor_ta(JSContext *ctx,
-                                             JSValueConst new_target,
-                                             JSValueConst src_obj,
-                                             int classid)
-{
-    JSObject *p, *src_buffer;
-    JSTypedArray *ta;
-    JSValue ctor, obj, buffer;
-    uint32_t len, i;
-    int size_log2;
-    JSArrayBuffer *src_abuf, *abuf;
-
-    obj = js_create_from_ctor(ctx, new_target, classid);
-    if (JS_IsException(obj))
-        return obj;
-    p = JS_VALUE_GET_OBJ(src_obj);
-    if (typed_array_is_detached(ctx, p)) {
-        JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-        goto fail;
-    }
-    ta = p->u.typed_array;
-    len = p->u.array.count;
-    src_buffer = ta->buffer;
-    src_abuf = src_buffer->u.array_buffer;
-    if (!src_abuf->shared) {
-        ctor = JS_SpeciesConstructor(ctx, JS_MKPTR(JS_TAG_OBJECT, src_buffer),
-                                     JS_UNDEFINED);
-        if (JS_IsException(ctor))
-            goto fail;
-    } else {
-        /* force ArrayBuffer default constructor */
-        ctor = JS_UNDEFINED;
-    }
-    size_log2 = typed_array_size_log2(classid);
-    buffer = js_array_buffer_constructor1(ctx, ctor,
-                                          (uint64_t)len << size_log2);
-    JS_FreeValue(ctx, ctor);
-    if (JS_IsException(buffer))
-        goto fail;
-    /* necessary because it could have been detached */
-    if (typed_array_is_detached(ctx, p)) {
-        JS_FreeValue(ctx, buffer);
-        JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-        goto fail;
-    }
-    abuf = JS_GetOpaque(buffer, JS_CLASS_ARRAY_BUFFER);
-    if (typed_array_init(ctx, obj, buffer, 0, len))
-        goto fail;
-    if (p->class_id == classid) {
-        /* same type: copy the content */
-        memcpy(abuf->data, src_abuf->data + ta->offset, abuf->byte_length);
-    } else {
-        for(i = 0; i < len; i++) {
-            JSValue val;
-            val = JS_GetPropertyUint32(ctx, src_obj, i);
-            if (JS_IsException(val))
-                goto fail;
-            if (JS_SetPropertyUint32(ctx, obj, i, val) < 0)
-                goto fail;
-        }
-    }
-    return obj;
- fail:
-    JS_FreeValue(ctx, obj);
-    return JS_EXCEPTION;
-}
-
-static JSValue js_typed_array_constructor(JSContext *ctx,
-                                          JSValueConst new_target,
-                                          int argc, JSValueConst *argv,
-                                          int classid)
-{
-    JSValue buffer, obj;
-    JSArrayBuffer *abuf;
-    int size_log2;
-    uint64_t len, offset;
-
-    size_log2 = typed_array_size_log2(classid);
-    if (JS_VALUE_GET_TAG(argv[0]) != JS_TAG_OBJECT) {
-        if (JS_ToIndex(ctx, &len, argv[0]))
-            return JS_EXCEPTION;
-        buffer = js_array_buffer_constructor1(ctx, JS_UNDEFINED,
-                                              len << size_log2);
-        if (JS_IsException(buffer))
-            return JS_EXCEPTION;
-        offset = 0;
-    } else {
-        JSObject *p = JS_VALUE_GET_OBJ(argv[0]);
-        if (p->class_id == JS_CLASS_ARRAY_BUFFER ||
-            p->class_id == JS_CLASS_SHARED_ARRAY_BUFFER) {
-            abuf = p->u.array_buffer;
-            if (JS_ToIndex(ctx, &offset, argv[1]))
-                return JS_EXCEPTION;
-            if (abuf->detached)
-                return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-            if ((offset & ((1 << size_log2) - 1)) != 0 ||
-                offset > abuf->byte_length)
-                return JS_ThrowRangeError(ctx, "invalid offset");
-            if (JS_IsUndefined(argv[2])) {
-                if ((abuf->byte_length & ((1 << size_log2) - 1)) != 0)
-                    goto invalid_length;
-                len = (abuf->byte_length - offset) >> size_log2;
-            } else {
-                if (JS_ToIndex(ctx, &len, argv[2]))
-                    return JS_EXCEPTION;
-                if (abuf->detached)
-                    return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-                if ((offset + (len << size_log2)) > abuf->byte_length) {
-                invalid_length:
-                    return JS_ThrowRangeError(ctx, "invalid length");
-                }
-            }
-            buffer = JS_DupValue(ctx, argv[0]);
-        } else {
-            if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
-                p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
-                return js_typed_array_constructor_ta(ctx, new_target, argv[0], classid);
-            } else {
-                return js_typed_array_constructor_obj(ctx, new_target, argv[0], classid);
-            }
-        }
-    }
-
-    obj = js_create_from_ctor(ctx, new_target, classid);
-    if (JS_IsException(obj)) {
-        JS_FreeValue(ctx, buffer);
-        return JS_EXCEPTION;
-    }
-    if (typed_array_init(ctx, obj, buffer, offset, len)) {
-        JS_FreeValue(ctx, obj);
-        return JS_EXCEPTION;
-    }
-    return obj;
-}
-
-static void js_typed_array_finalizer(JSRuntime *rt, JSValue val)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSTypedArray *ta = p->u.typed_array;
-    if (ta) {
-        /* during the GC the finalizers are called in an arbitrary
-           order so the ArrayBuffer finalizer may have been called */
-        if (JS_IsLiveObject(rt, JS_MKPTR(JS_TAG_OBJECT, ta->buffer))) {
-            list_del(&ta->link);
-        }
-        JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, ta->buffer));
-        js_free_rt(rt, ta);
-    }
-}
-
-static void js_typed_array_mark(JSRuntime *rt, JSValueConst val,
-                                JS_MarkFunc *mark_func)
-{
-    JSObject *p = JS_VALUE_GET_OBJ(val);
-    JSTypedArray *ta = p->u.typed_array;
-    if (ta) {
-        JS_MarkValue(rt, JS_MKPTR(JS_TAG_OBJECT, ta->buffer), mark_func);
-    }
-}
-
-static JSValue js_dataview_constructor(JSContext *ctx,
-                                       JSValueConst new_target,
-                                       int argc, JSValueConst *argv)
-{
-    JSArrayBuffer *abuf;
-    uint64_t offset;
-    uint32_t len;
-    JSValueConst buffer;
-    JSValue obj;
-    JSTypedArray *ta;
-    JSObject *p;
-
-    buffer = argv[0];
-    abuf = js_get_array_buffer(ctx, buffer);
-    if (!abuf)
-        return JS_EXCEPTION;
-    offset = 0;
-    if (argc > 1) {
-        if (JS_ToIndex(ctx, &offset, argv[1]))
-            return JS_EXCEPTION;
-    }
-    if (abuf->detached)
-        return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-    if (offset > abuf->byte_length)
-        return JS_ThrowRangeError(ctx, "invalid byteOffset");
-    len = abuf->byte_length - offset;
-    if (argc > 2 && !JS_IsUndefined(argv[2])) {
-        uint64_t l;
-        if (JS_ToIndex(ctx, &l, argv[2]))
-            return JS_EXCEPTION;
-        if (l > len)
-            return JS_ThrowRangeError(ctx, "invalid byteLength");
-        len = l;
-    }
-
-    obj = js_create_from_ctor(ctx, new_target, JS_CLASS_DATAVIEW);
-    if (JS_IsException(obj))
-        return JS_EXCEPTION;
-    if (abuf->detached) {
-        /* could have been detached in js_create_from_ctor() */
-        JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-        goto fail;
-    }
-    ta = js_malloc(ctx, sizeof(*ta));
-    if (!ta) {
-    fail:
-        JS_FreeValue(ctx, obj);
-        return JS_EXCEPTION;
-    }
-    p = JS_VALUE_GET_OBJ(obj);
-    ta->obj = p;
-    ta->buffer = JS_VALUE_GET_OBJ(JS_DupValue(ctx, buffer));
-    ta->offset = offset;
-    ta->length = len;
-    list_add_tail(&ta->link, &abuf->array_list);
-    p->u.typed_array = ta;
-    return obj;
-}
-
-static JSValue js_dataview_getValue(JSContext *ctx,
-                                    JSValueConst this_obj,
-                                    int argc, JSValueConst *argv, int class_id)
-{
-    JSTypedArray *ta;
-    JSArrayBuffer *abuf;
-    int is_swap, size;
-    uint8_t *ptr;
-    uint32_t v;
-    uint64_t pos;
-
-    ta = JS_GetOpaque2(ctx, this_obj, JS_CLASS_DATAVIEW);
-    if (!ta)
-        return JS_EXCEPTION;
-    size = 1 << typed_array_size_log2(class_id);
-    if (JS_ToIndex(ctx, &pos, argv[0]))
-        return JS_EXCEPTION;
-    is_swap = FALSE;
-    if (argc > 1)
-        is_swap = JS_ToBool(ctx, argv[1]);
-#ifndef WORDS_BIGENDIAN
-    is_swap ^= 1;
-#endif
-    abuf = ta->buffer->u.array_buffer;
-    if (abuf->detached)
-        return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-    if ((pos + size) > ta->length)
-        return JS_ThrowRangeError(ctx, "out of bound");
-    ptr = abuf->data + ta->offset + pos;
-
-    switch(class_id) {
-    case JS_CLASS_INT8_ARRAY:
-        return JS_NewInt32(ctx, *(int8_t *)ptr);
-    case JS_CLASS_UINT8_ARRAY:
-        return JS_NewInt32(ctx, *(uint8_t *)ptr);
-    case JS_CLASS_INT16_ARRAY:
-        v = get_u16(ptr);
-        if (is_swap)
-            v = bswap16(v);
-        return JS_NewInt32(ctx, (int16_t)v);
-    case JS_CLASS_UINT16_ARRAY:
-        v = get_u16(ptr);
-        if (is_swap)
-            v = bswap16(v);
-        return JS_NewInt32(ctx, v);
-    case JS_CLASS_INT32_ARRAY:
-        v = get_u32(ptr);
-        if (is_swap)
-            v = bswap32(v);
-        return JS_NewInt32(ctx, v);
-    case JS_CLASS_UINT32_ARRAY:
-        v = get_u32(ptr);
-        if (is_swap)
-            v = bswap32(v);
-        return JS_NewUint32(ctx, v);
-#ifdef CONFIG_BIGNUM
-    case JS_CLASS_BIG_INT64_ARRAY:
-        {
-            uint64_t v;
-            v = get_u64(ptr);
-            if (is_swap)
-                v = bswap64(v);
-            return JS_NewBigInt64(ctx, v);
-        }
-        break;
-    case JS_CLASS_BIG_UINT64_ARRAY:
-        {
-            uint64_t v;
-            v = get_u64(ptr);
-            if (is_swap)
-                v = bswap64(v);
-            return JS_NewBigUint64(ctx, v);
-        }
-        break;
-#endif
-    case JS_CLASS_FLOAT32_ARRAY:
-        {
-            union {
-                float f;
-                uint32_t i;
-            } u;
-            v = get_u32(ptr);
-            if (is_swap)
-                v = bswap32(v);
-            u.i = v;
-            return __JS_NewFloat64(ctx, u.f);
-        }
-    case JS_CLASS_FLOAT64_ARRAY:
-        {
-            union {
-                double f;
-                uint64_t i;
-            } u;
-            u.i = get_u64(ptr);
-            if (is_swap)
-                u.i = bswap64(u.i);
-            return __JS_NewFloat64(ctx, u.f);
-        }
-    default:
-        abort();
-    }
-}
-
-static JSValue js_dataview_setValue(JSContext *ctx,
-                                    JSValueConst this_obj,
-                                    int argc, JSValueConst *argv, int class_id)
-{
-    JSTypedArray *ta;
-    JSArrayBuffer *abuf;
-    int is_swap, size;
-    uint8_t *ptr;
-    uint64_t v64;
-    uint32_t v;
-    uint64_t pos;
-    JSValueConst val;
-
-    ta = JS_GetOpaque2(ctx, this_obj, JS_CLASS_DATAVIEW);
-    if (!ta)
-        return JS_EXCEPTION;
-    size = 1 << typed_array_size_log2(class_id);
-    if (JS_ToIndex(ctx, &pos, argv[0]))
-        return JS_EXCEPTION;
-    val = argv[1];
-    v = 0; /* avoid warning */
-    v64 = 0; /* avoid warning */
-    if (class_id <= JS_CLASS_UINT32_ARRAY) {
-        if (JS_ToUint32(ctx, &v, val))
-            return JS_EXCEPTION;
-    } else
-#ifdef CONFIG_BIGNUM
-    if (class_id <= JS_CLASS_BIG_UINT64_ARRAY) {
-        if (JS_ToBigInt64(ctx, (int64_t *)&v64, val))
-            return JS_EXCEPTION;
-    } else
-#endif
-    {
-        double d;
-        if (JS_ToFloat64(ctx, &d, val))
-            return JS_EXCEPTION;
-        if (class_id == JS_CLASS_FLOAT32_ARRAY) {
-            union {
-                float f;
-                uint32_t i;
-            } u;
-            u.f = d;
-            v = u.i;
-        } else {
-            JSFloat64Union u;
-            u.d = d;
-            v64 = u.u64;
-        }
-    }
-    is_swap = FALSE;
-    if (argc > 2)
-        is_swap = JS_ToBool(ctx, argv[2]);
-#ifndef WORDS_BIGENDIAN
-    is_swap ^= 1;
-#endif
-    abuf = ta->buffer->u.array_buffer;
-    if (abuf->detached)
-        return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
-    if ((pos + size) > ta->length)
-        return JS_ThrowRangeError(ctx, "out of bound");
-    ptr = abuf->data + ta->offset + pos;
-
-    switch(class_id) {
-    case JS_CLASS_INT8_ARRAY:
-    case JS_CLASS_UINT8_ARRAY:
-        *ptr = v;
-        break;
-    case JS_CLASS_INT16_ARRAY:
-    case JS_CLASS_UINT16_ARRAY:
-        if (is_swap)
-            v = bswap16(v);
-        put_u16(ptr, v);
-        break;
-    case JS_CLASS_INT32_ARRAY:
-    case JS_CLASS_UINT32_ARRAY:
-    case JS_CLASS_FLOAT32_ARRAY:
-        if (is_swap)
-            v = bswap32(v);
-        put_u32(ptr, v);
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_CLASS_BIG_INT64_ARRAY:
-    case JS_CLASS_BIG_UINT64_ARRAY:
-#endif
-    case JS_CLASS_FLOAT64_ARRAY:
-        if (is_swap)
-            v64 = bswap64(v64);
-        put_u64(ptr, v64);
-        break;
-    default:
-        abort();
-    }
-    return JS_UNDEFINED;
-}
-
-static const JSCFunctionListEntry js_dataview_proto_funcs[] = {
-    JS_CGETSET_MAGIC_DEF("buffer", js_typed_array_get_buffer, NULL, 1 ),
-    JS_CGETSET_MAGIC_DEF("byteLength", js_typed_array_get_byteLength, NULL, 1 ),
-    JS_CGETSET_MAGIC_DEF("byteOffset", js_typed_array_get_byteOffset, NULL, 1 ),
-    JS_CFUNC_MAGIC_DEF("getInt8", 1, js_dataview_getValue, JS_CLASS_INT8_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("getUint8", 1, js_dataview_getValue, JS_CLASS_UINT8_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("getInt16", 1, js_dataview_getValue, JS_CLASS_INT16_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("getUint16", 1, js_dataview_getValue, JS_CLASS_UINT16_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("getInt32", 1, js_dataview_getValue, JS_CLASS_INT32_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("getUint32", 1, js_dataview_getValue, JS_CLASS_UINT32_ARRAY ),
-#ifdef CONFIG_BIGNUM
-    JS_CFUNC_MAGIC_DEF("getBigInt64", 1, js_dataview_getValue, JS_CLASS_BIG_INT64_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("getBigUint64", 1, js_dataview_getValue, JS_CLASS_BIG_UINT64_ARRAY ),
-#endif
-    JS_CFUNC_MAGIC_DEF("getFloat32", 1, js_dataview_getValue, JS_CLASS_FLOAT32_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("getFloat64", 1, js_dataview_getValue, JS_CLASS_FLOAT64_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("setInt8", 2, js_dataview_setValue, JS_CLASS_INT8_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("setUint8", 2, js_dataview_setValue, JS_CLASS_UINT8_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("setInt16", 2, js_dataview_setValue, JS_CLASS_INT16_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("setUint16", 2, js_dataview_setValue, JS_CLASS_UINT16_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("setInt32", 2, js_dataview_setValue, JS_CLASS_INT32_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("setUint32", 2, js_dataview_setValue, JS_CLASS_UINT32_ARRAY ),
-#ifdef CONFIG_BIGNUM
-    JS_CFUNC_MAGIC_DEF("setBigInt64", 2, js_dataview_setValue, JS_CLASS_BIG_INT64_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("setBigUint64", 2, js_dataview_setValue, JS_CLASS_BIG_UINT64_ARRAY ),
-#endif
-    JS_CFUNC_MAGIC_DEF("setFloat32", 2, js_dataview_setValue, JS_CLASS_FLOAT32_ARRAY ),
-    JS_CFUNC_MAGIC_DEF("setFloat64", 2, js_dataview_setValue, JS_CLASS_FLOAT64_ARRAY ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "DataView", JS_PROP_CONFIGURABLE ),
-};
-
-/* Atomics */
-#ifdef CONFIG_ATOMICS
-
-typedef enum AtomicsOpEnum {
-    ATOMICS_OP_ADD,
-    ATOMICS_OP_AND,
-    ATOMICS_OP_OR,
-    ATOMICS_OP_SUB,
-    ATOMICS_OP_XOR,
-    ATOMICS_OP_EXCHANGE,
-    ATOMICS_OP_COMPARE_EXCHANGE,
-    ATOMICS_OP_LOAD,
-} AtomicsOpEnum;
-
-static void *js_atomics_get_ptr(JSContext *ctx,
-                                int *psize_log2, JSClassID *pclass_id,
-                                JSValueConst obj, JSValueConst idx_val,
-                                BOOL is_waitable)
-{
-    JSObject *p;
-    JSTypedArray *ta;
-    JSArrayBuffer *abuf;
-    void *ptr;
-    uint64_t idx;
-    BOOL err;
-    int size_log2;
-
-    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
-        goto fail;
-    p = JS_VALUE_GET_OBJ(obj);
-#ifdef CONFIG_BIGNUM
-    if (is_waitable)
-        err = (p->class_id != JS_CLASS_INT32_ARRAY &&
-               p->class_id != JS_CLASS_BIG_INT64_ARRAY);
-    else
-        err = !(p->class_id >= JS_CLASS_INT8_ARRAY &&
-                p->class_id <= JS_CLASS_BIG_UINT64_ARRAY);
-#else
-    if (is_waitable)
-        err = (p->class_id != JS_CLASS_INT32_ARRAY);
-    else
-        err = !(p->class_id >= JS_CLASS_INT8_ARRAY &&
-                p->class_id <= JS_CLASS_UINT32_ARRAY);
-#endif
-    if (err) {
-    fail:
-        JS_ThrowTypeError(ctx, "integer TypedArray expected");
-        return NULL;
-    }
-    ta = p->u.typed_array;
-    abuf = ta->buffer->u.array_buffer;
-    if (!abuf->shared) {
-        JS_ThrowTypeError(ctx, "not a SharedArrayBuffer TypedArray");
-        return NULL;
-    }
-    if (JS_ToIndex(ctx, &idx, idx_val)) {
-        return NULL;
-    }
-    if (idx >= p->u.array.count) {
-        JS_ThrowRangeError(ctx, "out-of-bound access");
-        return NULL;
-    }
-    size_log2 = typed_array_size_log2(p->class_id);
-    ptr = p->u.array.u.uint8_ptr + ((uintptr_t)idx << size_log2);
-    if (psize_log2)
-        *psize_log2 = size_log2;
-    if (pclass_id)
-        *pclass_id = p->class_id;
-    return ptr;
-}
-
-static JSValue js_atomics_op(JSContext *ctx,
-                             JSValueConst this_obj,
-                             int argc, JSValueConst *argv, int op)
-{
-    int size_log2;
-#ifdef CONFIG_BIGNUM
-    uint64_t v, a, rep_val;
-#else
-    uint32_t v, a, rep_val;
-#endif
-    void *ptr;
-    JSValue ret;
-    JSClassID class_id;
-
-    ptr = js_atomics_get_ptr(ctx, &size_log2, &class_id,
-                             argv[0], argv[1], FALSE);
-    if (!ptr)
-        return JS_EXCEPTION;
-    rep_val = 0;
-    if (op == ATOMICS_OP_LOAD) {
-        v = 0;
-    } else
-#ifdef CONFIG_BIGNUM
-   if (size_log2 == 3) {
-            int64_t v64;
-            if (JS_ToBigInt64(ctx, &v64, argv[2]))
-                return JS_EXCEPTION;
-            v = v64;
-            if (op == ATOMICS_OP_COMPARE_EXCHANGE) {
-                if (JS_ToBigInt64(ctx, &v64, argv[3]))
-                    return JS_EXCEPTION;
-                rep_val = v64;
-            }
-   } else
-#endif
-   {
-       uint32_t v32;
-       if (JS_ToUint32(ctx, &v32, argv[2]))
-           return JS_EXCEPTION;
-       v = v32;
-       if (op == ATOMICS_OP_COMPARE_EXCHANGE) {
-           if (JS_ToUint32(ctx, &v32, argv[3]))
-               return JS_EXCEPTION;
-           rep_val = v32;
-       }
-   }
-   switch(op | (size_log2 << 3)) {
-            
-#ifdef CONFIG_BIGNUM
-#define OP(op_name, func_name)                          \
-    case ATOMICS_OP_ ## op_name | (0 << 3):             \
-       a = func_name((_Atomic(uint8_t) *)ptr, v);       \
-       break;                                           \
-    case ATOMICS_OP_ ## op_name | (1 << 3):             \
-        a = func_name((_Atomic(uint16_t) *)ptr, v);     \
-        break;                                          \
-    case ATOMICS_OP_ ## op_name | (2 << 3):             \
-        a = func_name((_Atomic(uint32_t) *)ptr, v);     \
-        break;                                          \
-    case ATOMICS_OP_ ## op_name | (3 << 3):             \
-        a = func_name((_Atomic(uint64_t) *)ptr, v);     \
-        break;
-#else
-#define OP(op_name, func_name)                          \
-    case ATOMICS_OP_ ## op_name | (0 << 3):             \
-       a = func_name((_Atomic(uint8_t) *)ptr, v);       \
-       break;                                           \
-    case ATOMICS_OP_ ## op_name | (1 << 3):             \
-        a = func_name((_Atomic(uint16_t) *)ptr, v);     \
-        break;                                          \
-    case ATOMICS_OP_ ## op_name | (2 << 3):             \
-        a = func_name((_Atomic(uint32_t) *)ptr, v);     \
-        break;
-#endif
-        OP(ADD, atomic_fetch_add)
-        OP(AND, atomic_fetch_and)
-        OP(OR, atomic_fetch_or)
-        OP(SUB, atomic_fetch_sub)
-        OP(XOR, atomic_fetch_xor)
-        OP(EXCHANGE, atomic_exchange)
-#undef OP
-
-    case ATOMICS_OP_LOAD | (0 << 3):
-        a = atomic_load((_Atomic(uint8_t) *)ptr);
-        break;
-    case ATOMICS_OP_LOAD | (1 << 3):
-        a = atomic_load((_Atomic(uint16_t) *)ptr);
-        break;
-    case ATOMICS_OP_LOAD | (2 << 3):
-        a = atomic_load((_Atomic(uint32_t) *)ptr);
-        break;
-#ifdef CONFIG_BIGNUM
-    case ATOMICS_OP_LOAD | (3 << 3):
-        a = atomic_load((_Atomic(uint64_t) *)ptr);
-        break;
-#endif
-        
-    case ATOMICS_OP_COMPARE_EXCHANGE | (0 << 3):
-        {
-            uint8_t v1 = v;
-            atomic_compare_exchange_strong((_Atomic(uint8_t) *)ptr, &v1, rep_val);
-            a = v1;
-        }
-        break;
-    case ATOMICS_OP_COMPARE_EXCHANGE | (1 << 3):
-        {
-            uint16_t v1 = v;
-            atomic_compare_exchange_strong((_Atomic(uint16_t) *)ptr, &v1, rep_val);
-            a = v1;
-        }
-        break;
-    case ATOMICS_OP_COMPARE_EXCHANGE | (2 << 3):
-        {
-            uint32_t v1 = v;
-            atomic_compare_exchange_strong((_Atomic(uint32_t) *)ptr, &v1, rep_val);
-            a = v1;
-        }
-        break;
-#ifdef CONFIG_BIGNUM
-    case ATOMICS_OP_COMPARE_EXCHANGE | (3 << 3):
-        {
-            uint64_t v1 = v;
-            atomic_compare_exchange_strong((_Atomic(uint64_t) *)ptr, &v1, rep_val);
-            a = v1;
-        }
-        break;
-#endif
-    default:
-        abort();
-    }
-
-    switch(class_id) {
-    case JS_CLASS_INT8_ARRAY:
-        a = (int8_t)a;
-        goto done;
-    case JS_CLASS_UINT8_ARRAY:
-        a = (uint8_t)a;
-        goto done;
-    case JS_CLASS_INT16_ARRAY:
-        a = (int16_t)a;
-        goto done;
-    case JS_CLASS_UINT16_ARRAY:
-        a = (uint16_t)a;
-        goto done;
-    case JS_CLASS_INT32_ARRAY:
-    done:
-        ret = JS_NewInt32(ctx, a);
-        break;
-    case JS_CLASS_UINT32_ARRAY:
-        ret = JS_NewUint32(ctx, a);
-        break;
-#ifdef CONFIG_BIGNUM
-    case JS_CLASS_BIG_INT64_ARRAY:
-        ret = JS_NewBigInt64(ctx, a);
-        break;
-    case JS_CLASS_BIG_UINT64_ARRAY:
-        ret = JS_NewBigUint64(ctx, a);
-        break;
-#endif
-    default:
-        abort();
-    }
-    return ret;
-}
-
-static JSValue js_atomics_store(JSContext *ctx,
-                                JSValueConst this_obj,
-                                int argc, JSValueConst *argv)
-{
-    int size_log2;
-    void *ptr;
-    JSValue ret;
-
-    ptr = js_atomics_get_ptr(ctx, &size_log2, NULL, argv[0], argv[1], FALSE);
-    if (!ptr)
-        return JS_EXCEPTION;
-#ifdef CONFIG_BIGNUM
-    if (size_log2 == 3) {
-        int64_t v64;
-        ret = JS_ToBigIntValueFree(ctx, JS_DupValue(ctx, argv[2]));
-        if (JS_IsException(ret))
-            return ret;
-        if (JS_ToBigInt64(ctx, &v64, ret)) {
-            JS_FreeValue(ctx, ret);
-            return JS_EXCEPTION;
-        }
-        atomic_store((_Atomic(uint64_t) *)ptr, v64);
-    } else
-#endif
-    {
-        uint32_t v;
-        /* XXX: spec, would be simpler to return the written value */
-        ret = JS_ToIntegerFree(ctx, JS_DupValue(ctx, argv[2]));
-        if (JS_IsException(ret))
-            return ret;
-        if (JS_ToUint32(ctx, &v, ret)) {
-            JS_FreeValue(ctx, ret);
-            return JS_EXCEPTION;
-        }
-        switch(size_log2) {
-        case 0:
-            atomic_store((_Atomic(uint8_t) *)ptr, v);
-            break;
-        case 1:
-            atomic_store((_Atomic(uint16_t) *)ptr, v);
-            break;
-        case 2:
-            atomic_store((_Atomic(uint32_t) *)ptr, v);
-            break;
-        default:
-            abort();
-        }
-    }
-    return ret;
-}
-
-static JSValue js_atomics_isLockFree(JSContext *ctx,
-                                     JSValueConst this_obj,
-                                     int argc, JSValueConst *argv)
-{
-    int v, ret;
-    if (JS_ToInt32Sat(ctx, &v, argv[0]))
-        return JS_EXCEPTION;
-    ret = (v == 1 || v == 2 || v == 4
-#ifdef CONFIG_BIGNUM
-           || v == 8
-#endif
-           );
-    return JS_NewBool(ctx, ret);
-}
-
-typedef struct JSAtomicsWaiter {
-    struct list_head link;
-    BOOL linked;
-    pthread_cond_t cond;
-    int32_t *ptr;
-} JSAtomicsWaiter;
-
-static pthread_mutex_t js_atomics_mutex = PTHREAD_MUTEX_INITIALIZER;
-static struct list_head js_atomics_waiter_list =
-    LIST_HEAD_INIT(js_atomics_waiter_list);
-
-static JSValue js_atomics_wait(JSContext *ctx,
-                               JSValueConst this_obj,
-                               int argc, JSValueConst *argv)
-{
-    int64_t v;
-    int32_t v32;
-    void *ptr;
-    int64_t timeout;
-    struct timespec ts;
-    JSAtomicsWaiter waiter_s, *waiter;
-    int ret, size_log2, res;
-    double d;
-
-    ptr = js_atomics_get_ptr(ctx, &size_log2, NULL, argv[0], argv[1], TRUE);
-    if (!ptr)
-        return JS_EXCEPTION;
-#ifdef CONFIG_BIGNUM
-    if (size_log2 == 3) {
-        if (JS_ToBigInt64(ctx, &v, argv[2]))
-            return JS_EXCEPTION;
-    } else
-#endif
-    {        
-        if (JS_ToInt32(ctx, &v32, argv[2]))
-            return JS_EXCEPTION;
-        v = v32;
-    }
-    if (JS_ToFloat64(ctx, &d, argv[3]))
-        return JS_EXCEPTION;
-    if (isnan(d) || d > INT64_MAX)
-        timeout = INT64_MAX;
-    else if (d < 0)
-        timeout = 0;
-    else
-        timeout = (int64_t)d;
-    if (!ctx->rt->can_block)
-        return JS_ThrowTypeError(ctx, "cannot block in this thread");
-
-    /* XXX: inefficient if large number of waiters, should hash on
-       'ptr' value */
-    /* XXX: use Linux futexes when available ? */
-    pthread_mutex_lock(&js_atomics_mutex);
-    if (size_log2 == 3) {
-        res = *(int64_t *)ptr != v;
-    } else {
-        res = *(int32_t *)ptr != v;
-    }
-    if (res) {
-        pthread_mutex_unlock(&js_atomics_mutex);
-        return JS_AtomToString(ctx, JS_ATOM_not_equal);
-    }
-
-    waiter = &waiter_s;
-    waiter->ptr = ptr;
-    pthread_cond_init(&waiter->cond, NULL);
-    waiter->linked = TRUE;
-    list_add_tail(&waiter->link, &js_atomics_waiter_list);
-
-    if (timeout == INT64_MAX) {
-        pthread_cond_wait(&waiter->cond, &js_atomics_mutex);
-        ret = 0;
-    } else {
-        /* XXX: use clock monotonic */
-        clock_gettime(CLOCK_REALTIME, &ts);
-        ts.tv_sec += timeout / 1000;
-        ts.tv_nsec += (timeout % 1000) * 1000000;
-        if (ts.tv_nsec >= 1000000000) {
-            ts.tv_nsec -= 1000000000;
-            ts.tv_sec++;
-        }
-        ret = pthread_cond_timedwait(&waiter->cond, &js_atomics_mutex,
-                                     &ts);
-    }
-    if (waiter->linked)
-        list_del(&waiter->link);
-    pthread_mutex_unlock(&js_atomics_mutex);
-    pthread_cond_destroy(&waiter->cond);
-    if (ret == ETIMEDOUT) {
-        return JS_AtomToString(ctx, JS_ATOM_timed_out);
-    } else {
-        return JS_AtomToString(ctx, JS_ATOM_ok);
-    }
-}
-
-static JSValue js_atomics_notify(JSContext *ctx,
-                                 JSValueConst this_obj,
-                                 int argc, JSValueConst *argv)
-{
-    struct list_head *el, *el1, waiter_list;
-    int32_t count, n;
-    void *ptr;
-    JSAtomicsWaiter *waiter;
-
-    ptr = js_atomics_get_ptr(ctx, NULL, NULL, argv[0], argv[1], TRUE);
-    if (!ptr)
-        return JS_EXCEPTION;
-
-    if (JS_IsUndefined(argv[2])) {
-        count = INT32_MAX;
-    } else {
-        if (JS_ToInt32Clamp(ctx, &count, argv[2], 0, INT32_MAX, 0))
-            return JS_EXCEPTION;
-    }
-
-    n = 0;
-    if (count > 0) {
-        pthread_mutex_lock(&js_atomics_mutex);
-        init_list_head(&waiter_list);
-        list_for_each_safe(el, el1, &js_atomics_waiter_list) {
-            waiter = list_entry(el, JSAtomicsWaiter, link);
-            if (waiter->ptr == ptr) {
-                list_del(&waiter->link);
-                waiter->linked = FALSE;
-                list_add_tail(&waiter->link, &waiter_list);
-                n++;
-                if (n >= count)
-                    break;
-            }
-        }
-        list_for_each(el, &waiter_list) {
-            waiter = list_entry(el, JSAtomicsWaiter, link);
-            pthread_cond_signal(&waiter->cond);
-        }
-        pthread_mutex_unlock(&js_atomics_mutex);
-    }
-    return JS_NewInt32(ctx, n);
-}
-
-static const JSCFunctionListEntry js_atomics_funcs[] = {
-    JS_CFUNC_MAGIC_DEF("add", 3, js_atomics_op, ATOMICS_OP_ADD ),
-    JS_CFUNC_MAGIC_DEF("and", 3, js_atomics_op, ATOMICS_OP_AND ),
-    JS_CFUNC_MAGIC_DEF("or", 3, js_atomics_op, ATOMICS_OP_OR ),
-    JS_CFUNC_MAGIC_DEF("sub", 3, js_atomics_op, ATOMICS_OP_SUB ),
-    JS_CFUNC_MAGIC_DEF("xor", 3, js_atomics_op, ATOMICS_OP_XOR ),
-    JS_CFUNC_MAGIC_DEF("exchange", 3, js_atomics_op, ATOMICS_OP_EXCHANGE ),
-    JS_CFUNC_MAGIC_DEF("compareExchange", 4, js_atomics_op, ATOMICS_OP_COMPARE_EXCHANGE ),
-    JS_CFUNC_MAGIC_DEF("load", 2, js_atomics_op, ATOMICS_OP_LOAD ),
-    JS_CFUNC_DEF("store", 3, js_atomics_store ),
-    JS_CFUNC_DEF("isLockFree", 1, js_atomics_isLockFree ),
-    JS_CFUNC_DEF("wait", 4, js_atomics_wait ),
-    JS_CFUNC_DEF("notify", 3, js_atomics_notify ),
-    JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Atomics", JS_PROP_CONFIGURABLE ),
-};
-
-static const JSCFunctionListEntry js_atomics_obj[] = {
-    JS_OBJECT_DEF("Atomics", js_atomics_funcs, countof(js_atomics_funcs), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
-};
-
-void JS_AddIntrinsicAtomics(JSContext *ctx)
-{
-    /* add Atomics as autoinit object */
-    JS_SetPropertyFunctionList(ctx, ctx->global_obj, js_atomics_obj, countof(js_atomics_obj));
-}
-
-#endif /* CONFIG_ATOMICS */
-
-void JS_AddIntrinsicTypedArrays(JSContext *ctx)
-{
-    JSValue typed_array_base_proto, typed_array_base_func;
-    JSValueConst array_buffer_func, shared_array_buffer_func;
-    int i;
-
-    ctx->class_proto[JS_CLASS_ARRAY_BUFFER] = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_ARRAY_BUFFER],
-                               js_array_buffer_proto_funcs,
-                               countof(js_array_buffer_proto_funcs));
-
-    array_buffer_func = JS_NewGlobalCConstructorOnly(ctx, "ArrayBuffer",
-                                                 js_array_buffer_constructor, 1,
-                                                 ctx->class_proto[JS_CLASS_ARRAY_BUFFER]);
-    JS_SetPropertyFunctionList(ctx, array_buffer_func,
-                               js_array_buffer_funcs,
-                               countof(js_array_buffer_funcs));
-
-    ctx->class_proto[JS_CLASS_SHARED_ARRAY_BUFFER] = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_SHARED_ARRAY_BUFFER],
-                               js_shared_array_buffer_proto_funcs,
-                               countof(js_shared_array_buffer_proto_funcs));
-
-    shared_array_buffer_func = JS_NewGlobalCConstructorOnly(ctx, "SharedArrayBuffer",
-                                                 js_shared_array_buffer_constructor, 1,
-                                                 ctx->class_proto[JS_CLASS_SHARED_ARRAY_BUFFER]);
-    JS_SetPropertyFunctionList(ctx, shared_array_buffer_func,
-                               js_shared_array_buffer_funcs,
-                               countof(js_shared_array_buffer_funcs));
-
-    typed_array_base_proto = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, typed_array_base_proto,
-                               js_typed_array_base_proto_funcs,
-                               countof(js_typed_array_base_proto_funcs));
-
-    /* TypedArray.prototype.toString must be the same object as Array.prototype.toString */
-    JSValue obj = JS_GetProperty(ctx, ctx->class_proto[JS_CLASS_ARRAY], JS_ATOM_toString);
-    /* XXX: should use alias method in JSCFunctionListEntry */ //@@@
-    JS_DefinePropertyValue(ctx, typed_array_base_proto, JS_ATOM_toString, obj,
-                           JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
-
-    typed_array_base_func = JS_NewCFunction(ctx, js_typed_array_base_constructor,
-                                            "TypedArray", 0);
-    JS_SetPropertyFunctionList(ctx, typed_array_base_func,
-                               js_typed_array_base_funcs,
-                               countof(js_typed_array_base_funcs));
-    JS_SetConstructor(ctx, typed_array_base_func, typed_array_base_proto);
-
-    for(i = JS_CLASS_UINT8C_ARRAY; i < JS_CLASS_UINT8C_ARRAY + JS_TYPED_ARRAY_COUNT; i++) {
-        JSValue func_obj;
-        char buf[ATOM_GET_STR_BUF_SIZE];
-        const char *name;
-
-        ctx->class_proto[i] = JS_NewObjectProto(ctx, typed_array_base_proto);
-        JS_DefinePropertyValueStr(ctx, ctx->class_proto[i],
-                                  "BYTES_PER_ELEMENT",
-                                  JS_NewInt32(ctx, 1 << typed_array_size_log2(i)),
-                                  0);
-        name = JS_AtomGetStr(ctx, buf, sizeof(buf),
-                             JS_ATOM_Uint8ClampedArray + i - JS_CLASS_UINT8C_ARRAY);
-        func_obj = JS_NewCFunction3(ctx, (JSCFunction *)js_typed_array_constructor,
-                                    name, 3, JS_CFUNC_constructor_magic, i,
-                                    typed_array_base_func);
-        JS_NewGlobalCConstructor2(ctx, func_obj, name, ctx->class_proto[i]);
-        JS_DefinePropertyValueStr(ctx, func_obj,
-                                  "BYTES_PER_ELEMENT",
-                                  JS_NewInt32(ctx, 1 << typed_array_size_log2(i)),
-                                  0);
-    }
-    JS_FreeValue(ctx, typed_array_base_proto);
-    JS_FreeValue(ctx, typed_array_base_func);
-
-    /* DataView */
-    ctx->class_proto[JS_CLASS_DATAVIEW] = JS_NewObject(ctx);
-    JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_DATAVIEW],
-                               js_dataview_proto_funcs,
-                               countof(js_dataview_proto_funcs));
-    JS_NewGlobalCConstructorOnly(ctx, "DataView",
-                                 js_dataview_constructor, 1,
-                                 ctx->class_proto[JS_CLASS_DATAVIEW]);
-    /* Atomics */
-#ifdef CONFIG_ATOMICS
-    JS_AddIntrinsicAtomics(ctx);
-#endif
-}
diff --git a/third-party/quickjs.h b/third-party/quickjs.h
deleted file mode 100644
index 6317068..0000000
--- a/third-party/quickjs.h
+++ /dev/null
@@ -1,898 +0,0 @@
-/*
- * QuickJS Javascript Engine
- *
- * Copyright (c) 2017-2019 Fabrice Bellard
- * Copyright (c) 2017-2019 Charlie Gordon
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#ifndef QUICKJS_H
-#define QUICKJS_H
-
-#include <stdio.h>
-#include <stdint.h>
-
-#if defined(__GNUC__) || defined(__clang__)
-#define js_likely(x)          __builtin_expect(!!(x), 1)
-#define js_unlikely(x)        __builtin_expect(!!(x), 0)
-#define js_force_inline       inline __attribute__((always_inline))
-#define __js_printf_like(f, a)   __attribute__((format(printf, f, a)))
-#else
-#define js_likely(x)     (x)
-#define js_unlikely(x)   (x)
-#define js_force_inline  inline
-#define __js_printf_like(a, b)
-#endif
-
-#define JS_BOOL int
-
-typedef struct JSRuntime JSRuntime;
-typedef struct JSContext JSContext;
-typedef struct JSObject JSObject;
-typedef struct JSClass JSClass;
-typedef uint32_t JSClassID;
-typedef uint32_t JSAtom;
-
-#if defined(__x86_64__) || defined(__aarch64__)
-#define JS_PTR64
-#define JS_PTR64_DEF(a) a
-#else
-#define JS_PTR64_DEF(a)
-#endif
-
-#ifndef JS_PTR64
-#define JS_NAN_BOXING
-#endif
-
-enum {
-    /* all tags with a reference count are negative */
-    JS_TAG_FIRST       = -10, /* first negative tag */
-    JS_TAG_BIG_INT     = -10,
-    JS_TAG_BIG_FLOAT   = -9,
-    JS_TAG_SYMBOL      = -8,
-    JS_TAG_STRING      = -7,
-    JS_TAG_SHAPE       = -6, /* used internally during GC */
-    JS_TAG_ASYNC_FUNCTION = -5, /* used internally during GC */
-    JS_TAG_VAR_REF     = -4, /* used internally during GC */
-    JS_TAG_MODULE      = -3, /* used internally */
-    JS_TAG_FUNCTION_BYTECODE = -2, /* used internally */
-    JS_TAG_OBJECT      = -1,
-
-    JS_TAG_INT         = 0,
-    JS_TAG_BOOL        = 1,
-    JS_TAG_NULL        = 2,
-    JS_TAG_UNDEFINED   = 3,
-    JS_TAG_UNINITIALIZED = 4,
-    JS_TAG_CATCH_OFFSET = 5,
-    JS_TAG_EXCEPTION   = 6,
-    JS_TAG_FLOAT64     = 7,
-    /* any larger tag is FLOAT64 if JS_NAN_BOXING */
-};
-
-typedef struct JSRefCountHeader {
-    int ref_count;
-} JSRefCountHeader;
-
-#define JS_FLOAT64_NAN NAN
-
-#ifdef CONFIG_CHECK_JSVALUE
-/* JSValue consistency : it is not possible to run the code in this
-   mode, but it is useful to detect simple reference counting
-   errors. It would be interesting to modify a static C analyzer to
-   handle specific annotations (clang has such annotations but only
-   for objective C) */
-typedef struct __JSValue *JSValue;
-typedef const struct __JSValue *JSValueConst;
-
-#define JS_VALUE_GET_TAG(v) (int)((uintptr_t)(v) & 0xf)
-/* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */
-#define JS_VALUE_GET_NORM_TAG(v) JS_VALUE_GET_TAG(v)
-#define JS_VALUE_GET_INT(v) (int)((intptr_t)(v) >> 4)
-#define JS_VALUE_GET_BOOL(v) JS_VALUE_GET_INT(v)
-#define JS_VALUE_GET_FLOAT64(v) (double)JS_VALUE_GET_INT(v)
-#define JS_VALUE_GET_PTR(v) (void *)((intptr_t)(v) & ~0xf)
-
-#define JS_MKVAL(tag, val) (JSValue)(intptr_t)(((val) << 4) | (tag))
-#define JS_MKPTR(tag, p) (JSValue)((intptr_t)(p) | (tag))
-
-#define JS_TAG_IS_FLOAT64(tag) ((unsigned)(tag) == JS_TAG_FLOAT64)
-
-#define JS_NAN JS_MKVAL(JS_TAG_FLOAT64, 1)
-
-static inline JSValue __JS_NewFloat64(JSContext *ctx, double d)
-{
-    return JS_MKVAL(JS_TAG_FLOAT64, (int)d);
-}
-
-#elif defined(JS_NAN_BOXING)
-
-typedef uint64_t JSValue;
-
-#define JSValueConst JSValue
-
-#define JS_VALUE_GET_TAG(v) (int)((v) >> 32)
-#define JS_VALUE_GET_INT(v) (int)(v)
-#define JS_VALUE_GET_BOOL(v) (int)(v)
-#define JS_VALUE_GET_PTR(v) (void *)(intptr_t)(v)
-
-#define JS_MKVAL(tag, val) (((uint64_t)(tag) << 32) | (uint32_t)(val))
-#define JS_MKPTR(tag, ptr) (((uint64_t)(tag) << 32) | (uintptr_t)(ptr))
-
-#define JS_FLOAT64_TAG_ADDEND (0x7ff80000 - JS_TAG_FIRST + 1) /* quiet NaN encoding */
-
-static inline double JS_VALUE_GET_FLOAT64(JSValue v)
-{
-    union {
-        JSValue v;
-        double d;
-    } u;
-    u.v = v;
-    u.v += (uint64_t)JS_FLOAT64_TAG_ADDEND << 32;
-    return u.d;
-}
-
-#define JS_NAN (0x7ff8000000000000 - ((uint64_t)JS_FLOAT64_TAG_ADDEND << 32))
-
-static inline JSValue __JS_NewFloat64(JSContext *ctx, double d)
-{
-    union {
-        double d;
-        uint64_t u64;
-    } u;
-    JSValue v;
-    u.d = d;
-    /* normalize NaN */
-    if (js_unlikely((u.u64 & 0x7fffffffffffffff) > 0x7ff0000000000000))
-        v = JS_NAN;
-    else
-        v = u.u64 - ((uint64_t)JS_FLOAT64_TAG_ADDEND << 32);
-    return v;
-}
-
-#define JS_TAG_IS_FLOAT64(tag) ((unsigned)((tag) - JS_TAG_FIRST) >= (JS_TAG_FLOAT64 - JS_TAG_FIRST))
-
-/* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */
-static inline int JS_VALUE_GET_NORM_TAG(JSValue v)
-{
-    uint32_t tag;
-    tag = JS_VALUE_GET_TAG(v);
-    if (JS_TAG_IS_FLOAT64(tag))
-        return JS_TAG_FLOAT64;
-    else
-        return tag;
-}
-
-#else /* !JS_NAN_BOXING */
-
-typedef union JSValueUnion {
-    int32_t int32;
-    double float64;
-    void *ptr;
-} JSValueUnion;
-
-typedef struct JSValue {
-    JSValueUnion u;
-    int64_t tag;
-} JSValue;
-
-#define JSValueConst JSValue
-
-#define JS_VALUE_GET_TAG(v) ((int32_t)(v).tag)
-/* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */
-#define JS_VALUE_GET_NORM_TAG(v) JS_VALUE_GET_TAG(v)
-#define JS_VALUE_GET_INT(v) ((v).u.int32)
-#define JS_VALUE_GET_BOOL(v) ((v).u.int32)
-#define JS_VALUE_GET_FLOAT64(v) ((v).u.float64)
-#define JS_VALUE_GET_PTR(v) ((v).u.ptr)
-
-#define JS_MKVAL(tag, val) (JSValue){ .u.int32 = val, tag }
-#define JS_MKPTR(tag, p) (JSValue){ .u.ptr = p, tag }
-
-#define JS_TAG_IS_FLOAT64(tag) ((unsigned)(tag) == JS_TAG_FLOAT64)
-
-#define JS_NAN (JSValue){ .u.float64 = JS_FLOAT64_NAN, JS_TAG_FLOAT64 }
-
-static inline JSValue __JS_NewFloat64(JSContext *ctx, double d)
-{
-    JSValue v;
-    v.tag = JS_TAG_FLOAT64;
-    v.u.float64 = d;
-    return v;
-}
-
-#endif /* !JS_NAN_BOXING */
-
-#define JS_VALUE_IS_BOTH_INT(v1, v2) ((JS_VALUE_GET_TAG(v1) | JS_VALUE_GET_TAG(v2)) == 0)
-#define JS_VALUE_IS_BOTH_FLOAT(v1, v2) (JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(v1)) && JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(v2)))
-
-#define JS_VALUE_GET_OBJ(v) ((JSObject *)JS_VALUE_GET_PTR(v))
-#define JS_VALUE_GET_STRING(v) ((JSString *)JS_VALUE_GET_PTR(v))
-#define JS_VALUE_HAS_REF_COUNT(v) ((unsigned)JS_VALUE_GET_TAG(v) >= (unsigned)JS_TAG_FIRST)
-
-/* special values */
-#define JS_NULL      JS_MKVAL(JS_TAG_NULL, 0)
-#define JS_UNDEFINED JS_MKVAL(JS_TAG_UNDEFINED, 0)
-#define JS_FALSE     JS_MKVAL(JS_TAG_BOOL, 0)
-#define JS_TRUE      JS_MKVAL(JS_TAG_BOOL, 1)
-#define JS_EXCEPTION JS_MKVAL(JS_TAG_EXCEPTION, 0)
-#define JS_UNINITIALIZED JS_MKVAL(JS_TAG_UNINITIALIZED, 0)
-
-/* flags for object properties */
-#define JS_PROP_CONFIGURABLE  (1 << 0)
-#define JS_PROP_WRITABLE      (1 << 1)
-#define JS_PROP_ENUMERABLE    (1 << 2)
-#define JS_PROP_C_W_E         (JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE | JS_PROP_ENUMERABLE)
-#define JS_PROP_LENGTH        (1 << 3) /* used internally in Arrays */
-#define JS_PROP_TMASK         (3 << 4) /* mask for NORMAL, GETSET, VARREF, AUTOINIT */
-#define JS_PROP_NORMAL         (0 << 4)
-#define JS_PROP_GETSET         (1 << 4)
-#define JS_PROP_VARREF         (2 << 4) /* used internally */
-#define JS_PROP_AUTOINIT       (3 << 4) /* used internally */
-
-/* flags for JS_DefineProperty */
-#define JS_PROP_HAS_SHIFT        8
-#define JS_PROP_HAS_CONFIGURABLE (1 << 8)
-#define JS_PROP_HAS_WRITABLE     (1 << 9)
-#define JS_PROP_HAS_ENUMERABLE   (1 << 10)
-#define JS_PROP_HAS_GET          (1 << 11)
-#define JS_PROP_HAS_SET          (1 << 12)
-#define JS_PROP_HAS_VALUE        (1 << 13)
-
-/* throw an exception if false would be returned
-   (JS_DefineProperty/JS_SetProperty) */
-#define JS_PROP_THROW            (1 << 14)
-/* throw an exception if false would be returned in strict mode
-   (JS_SetProperty) */
-#define JS_PROP_THROW_STRICT     (1 << 15)
-
-#define JS_PROP_NO_ADD           (1 << 16) /* internal use */
-#define JS_PROP_NO_EXOTIC        (1 << 17) /* internal use */
-
-#define JS_DEFAULT_STACK_SIZE (256 * 1024)
-
-/* JS_Eval() flags */
-#define JS_EVAL_TYPE_GLOBAL   (0 << 0) /* global code (default) */
-#define JS_EVAL_TYPE_MODULE   (1 << 0) /* module code */
-#define JS_EVAL_TYPE_DIRECT   (2 << 0) /* direct call (internal use) */
-#define JS_EVAL_TYPE_INDIRECT (3 << 0) /* indirect call (internal use) */
-#define JS_EVAL_TYPE_MASK     (3 << 0)
-
-#define JS_EVAL_FLAG_STRICT   (1 << 3) /* force 'strict' mode */
-#define JS_EVAL_FLAG_STRIP    (1 << 4) /* force 'strip' mode */
-#define JS_EVAL_FLAG_COMPILE_ONLY (1 << 5) /* internal use */
-
-typedef JSValue JSCFunction(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv);
-typedef JSValue JSCFunctionMagic(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic);
-typedef JSValue JSCFunctionData(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic, JSValue *func_data);
-
-typedef struct JSMallocState {
-    size_t malloc_count;
-    size_t malloc_size;
-    size_t malloc_limit;
-    void *opaque; /* user opaque */
-} JSMallocState;
-
-typedef struct JSMallocFunctions {
-    void *(*js_malloc)(JSMallocState *s, size_t size);
-    void (*js_free)(JSMallocState *s, void *ptr);
-    void *(*js_realloc)(JSMallocState *s, void *ptr, size_t size);
-    size_t (*js_malloc_usable_size)(const void *ptr);
-} JSMallocFunctions;
-
-JSRuntime *JS_NewRuntime(void);
-/* info lifetime must exceed that of rt */
-void JS_SetRuntimeInfo(JSRuntime *rt, const char *info);
-void JS_SetMemoryLimit(JSRuntime *rt, size_t limit);
-void JS_SetGCThreshold(JSRuntime *rt, size_t gc_threshold);
-JSRuntime *JS_NewRuntime2(const JSMallocFunctions *mf, void *opaque);
-void JS_FreeRuntime(JSRuntime *rt);
-typedef void JS_MarkFunc(JSRuntime *rt, JSValueConst val);
-void JS_MarkValue(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func);
-void JS_RunGC(JSRuntime *rt);
-JS_BOOL JS_IsLiveObject(JSRuntime *rt, JSValueConst obj);
-JS_BOOL JS_IsInGCSweep(JSRuntime *rt);
-
-JSContext *JS_NewContext(JSRuntime *rt);
-void JS_FreeContext(JSContext *s);
-void *JS_GetContextOpaque(JSContext *ctx);
-void JS_SetContextOpaque(JSContext *ctx, void *opaque);
-JSRuntime *JS_GetRuntime(JSContext *ctx);
-void JS_SetMaxStackSize(JSContext *ctx, size_t stack_size);
-void JS_SetClassProto(JSContext *ctx, JSClassID class_id, JSValue obj);
-JSValue JS_GetClassProto(JSContext *ctx, JSClassID class_id);
-
-/* the following functions are used to select the intrinsic object to
-   save memory */
-JSContext *JS_NewContextRaw(JSRuntime *rt);
-void JS_AddIntrinsicBaseObjects(JSContext *ctx);
-void JS_AddIntrinsicDate(JSContext *ctx);
-void JS_AddIntrinsicEval(JSContext *ctx);
-void JS_AddIntrinsicStringNormalize(JSContext *ctx);
-void JS_AddIntrinsicRegExpCompiler(JSContext *ctx);
-void JS_AddIntrinsicRegExp(JSContext *ctx);
-void JS_AddIntrinsicJSON(JSContext *ctx);
-void JS_AddIntrinsicProxy(JSContext *ctx);
-void JS_AddIntrinsicMapSet(JSContext *ctx);
-void JS_AddIntrinsicTypedArrays(JSContext *ctx);
-void JS_AddIntrinsicPromise(JSContext *ctx);
-JSValue js_string_codePointRange(JSContext *ctx, JSValueConst this_val,
-                                 int argc, JSValueConst *argv);
-
-void *js_malloc_rt(JSRuntime *rt, size_t size);
-void js_free_rt(JSRuntime *rt, void *ptr);
-void *js_realloc_rt(JSRuntime *rt, void *ptr, size_t size);
-size_t js_malloc_usable_size_rt(JSRuntime *rt, const void *ptr);
-void *js_mallocz_rt(JSRuntime *rt, size_t size);
-
-void *js_malloc(JSContext *ctx, size_t size);
-void js_free(JSContext *ctx, void *ptr);
-void *js_realloc(JSContext *ctx, void *ptr, size_t size);
-size_t js_malloc_usable_size(JSContext *ctx, const void *ptr);
-void *js_realloc2(JSContext *ctx, void *ptr, size_t size, size_t *pslack);
-void *js_mallocz(JSContext *ctx, size_t size);
-char *js_strdup(JSContext *ctx, const char *str);
-char *js_strndup(JSContext *ctx, const char *s, size_t n);
-
-typedef struct JSMemoryUsage {
-    int64_t malloc_size, malloc_limit, memory_used_size;
-    int64_t malloc_count;
-    int64_t memory_used_count;
-    int64_t atom_count, atom_size;
-    int64_t str_count, str_size;
-    int64_t obj_count, obj_size;
-    int64_t prop_count, prop_size;
-    int64_t shape_count, shape_size;
-    int64_t js_func_count, js_func_size, js_func_code_size;
-    int64_t js_func_pc2line_count, js_func_pc2line_size;
-    int64_t c_func_count, array_count;
-    int64_t fast_array_count, fast_array_elements;
-    int64_t binary_object_count, binary_object_size;
-} JSMemoryUsage;
-
-void JS_ComputeMemoryUsage(JSRuntime *rt, JSMemoryUsage *s);
-void JS_DumpMemoryUsage(FILE *fp, const JSMemoryUsage *s, JSRuntime *rt);
-
-/* atom support */
-JSAtom JS_NewAtomLen(JSContext *ctx, const char *str, size_t len);
-JSAtom JS_NewAtom(JSContext *ctx, const char *str);
-JSAtom JS_NewAtomUInt32(JSContext *ctx, uint32_t n);
-JSAtom JS_DupAtom(JSContext *ctx, JSAtom v);
-void JS_FreeAtom(JSContext *ctx, JSAtom v);
-void JS_FreeAtomRT(JSRuntime *rt, JSAtom v);
-JSValue JS_AtomToValue(JSContext *ctx, JSAtom atom);
-JSValue JS_AtomToString(JSContext *ctx, JSAtom atom);
-const char *JS_AtomToCString(JSContext *ctx, JSAtom atom);
-
-/* object class support */
-
-typedef struct JSPropertyEnum {
-    JS_BOOL is_enumerable;
-    JSAtom atom;
-} JSPropertyEnum;
-
-typedef struct JSPropertyDescriptor {
-    int flags;
-    JSValue value;
-    JSValue getter;
-    JSValue setter;
-} JSPropertyDescriptor;
-
-typedef struct JSClassExoticMethods {
-    /* Return -1 if exception (can only happen in case of Proxy object),
-       FALSE if the property does not exists, TRUE if it exists. If 1 is
-       returned, the property descriptor 'desc' is filled if != NULL. */
-    int (*get_own_property)(JSContext *ctx, JSPropertyDescriptor *desc,
-                             JSValueConst obj, JSAtom prop);
-    /* '*ptab' should hold the '*plen' property keys. Return 0 if OK,
-       -1 if exception. The 'is_enumerable' field is ignored.
-    */
-    int (*get_own_property_names)(JSContext *ctx, JSPropertyEnum **ptab,
-                                  uint32_t *plen,
-                                  JSValueConst obj);
-    /* return < 0 if exception, or TRUE/FALSE */
-    int (*delete_property)(JSContext *ctx, JSValueConst obj, JSAtom prop);
-    /* return < 0 if exception or TRUE/FALSE */
-    int (*define_own_property)(JSContext *ctx, JSValueConst this_obj,
-                               JSAtom prop, JSValueConst val,
-                               JSValueConst getter, JSValueConst setter,
-                               int flags);
-    /* The following methods can be emulated with the previous ones,
-       so they are usually not needed */
-    /* return < 0 if exception or TRUE/FALSE */
-    int (*has_property)(JSContext *ctx, JSValueConst obj, JSAtom atom);
-    JSValue (*get_property)(JSContext *ctx, JSValueConst obj, JSAtom atom,
-                            JSValueConst receiver);
-    /* return < 0 if exception or TRUE/FALSE */
-    int (*set_property)(JSContext *ctx, JSValueConst obj, JSAtom atom,
-                        JSValueConst value, JSValueConst receiver, int flags);
-} JSClassExoticMethods;
-
-typedef void JSClassFinalizer(JSRuntime *rt, JSValue val);
-typedef void JSClassGCMark(JSRuntime *rt, JSValueConst val,
-                           JS_MarkFunc *mark_func);
-typedef JSValue JSClassCall(JSContext *ctx, JSValueConst func_obj,
-                            JSValueConst this_val, int argc, JSValueConst *argv);
-
-typedef struct JSClassDef {
-    const char *class_name;
-    JSClassFinalizer *finalizer;
-    JSClassGCMark *gc_mark;
-    JSClassCall *call;
-    /* XXX: suppress this indirection ? It is here only to save memory
-       because only a few classes need these methods */
-    JSClassExoticMethods *exotic;
-} JSClassDef;
-
-JSClassID JS_NewClassID(JSClassID *pclass_id);
-int JS_NewClass(JSRuntime *rt, JSClassID class_id, const JSClassDef *class_def);
-int JS_IsRegisteredClass(JSRuntime *rt, JSClassID class_id);
-
-/* value handling */
-
-static js_force_inline JSValue JS_NewBool(JSContext *ctx, JS_BOOL val)
-{
-    return JS_MKVAL(JS_TAG_BOOL, val);
-}
-
-static js_force_inline JSValue JS_NewInt32(JSContext *ctx, int32_t val)
-{
-    return JS_MKVAL(JS_TAG_INT, val);
-}
-
-static js_force_inline JSValue JS_NewCatchOffset(JSContext *ctx, int32_t val)
-{
-    return JS_MKVAL(JS_TAG_CATCH_OFFSET, val);
-}
-
-JSValue JS_NewInt64(JSContext *ctx, int64_t v);
-JSValue JS_NewBigInt64(JSContext *ctx, int64_t v);
-JSValue JS_NewBigUint64(JSContext *ctx, uint64_t v);
-
-static js_force_inline JSValue JS_NewFloat64(JSContext *ctx, double d)
-{
-    JSValue v;
-    int32_t val;
-    union {
-        double d;
-        uint64_t u;
-    } u, t;
-    u.d = d;
-    val = (int32_t)d;
-    t.d = val;
-    /* -0 cannot be represented as integer, so we compare the bit
-        representation */
-    if (u.u == t.u) {
-        v = JS_MKVAL(JS_TAG_INT, val);
-    } else {
-        v = __JS_NewFloat64(ctx, d);
-    }
-    return v;
-}
-
-JS_BOOL JS_IsNumber(JSValueConst v);
-
-static inline JS_BOOL JS_IsInteger(JSValueConst v)
-{
-    int tag = JS_VALUE_GET_TAG(v);
-    return tag == JS_TAG_INT || tag == JS_TAG_BIG_INT;
-}
-
-static inline JS_BOOL JS_IsBigFloat(JSValueConst v)
-{
-    int tag = JS_VALUE_GET_TAG(v);
-    return tag == JS_TAG_BIG_FLOAT;
-}
-
-static inline JS_BOOL JS_IsBool(JSValueConst v)
-{
-    return JS_VALUE_GET_TAG(v) == JS_TAG_BOOL;
-}
-
-static inline JS_BOOL JS_IsNull(JSValueConst v)
-{
-    return JS_VALUE_GET_TAG(v) == JS_TAG_NULL;
-}
-
-static inline JS_BOOL JS_IsUndefined(JSValueConst v)
-{
-    return JS_VALUE_GET_TAG(v) == JS_TAG_UNDEFINED;
-}
-
-static inline JS_BOOL JS_IsException(JSValueConst v)
-{
-    return js_unlikely(JS_VALUE_GET_TAG(v) == JS_TAG_EXCEPTION);
-}
-
-static inline JS_BOOL JS_IsUninitialized(JSValueConst v)
-{
-    return js_unlikely(JS_VALUE_GET_TAG(v) == JS_TAG_UNINITIALIZED);
-}
-
-static inline JS_BOOL JS_IsString(JSValueConst v)
-{
-    return JS_VALUE_GET_TAG(v) == JS_TAG_STRING;
-}
-
-static inline JS_BOOL JS_IsSymbol(JSValueConst v)
-{
-    return JS_VALUE_GET_TAG(v) == JS_TAG_SYMBOL;
-}
-
-static inline JS_BOOL JS_IsObject(JSValueConst v)
-{
-    return JS_VALUE_GET_TAG(v) == JS_TAG_OBJECT;
-}
-
-JSValue JS_Throw(JSContext *ctx, JSValue obj);
-JSValue JS_GetException(JSContext *ctx);
-JS_BOOL JS_IsError(JSContext *ctx, JSValueConst val);
-void JS_EnableIsErrorProperty(JSContext *ctx, JS_BOOL enable);
-void JS_ResetUncatchableError(JSContext *ctx);
-JSValue JS_NewError(JSContext *ctx);
-JSValue __js_printf_like(2, 3) JS_ThrowSyntaxError(JSContext *ctx, const char *fmt, ...);
-JSValue __js_printf_like(2, 3) JS_ThrowTypeError(JSContext *ctx, const char *fmt, ...);
-JSValue __js_printf_like(2, 3) JS_ThrowReferenceError(JSContext *ctx, const char *fmt, ...);
-JSValue __js_printf_like(2, 3) JS_ThrowRangeError(JSContext *ctx, const char *fmt, ...);
-JSValue __js_printf_like(2, 3) JS_ThrowInternalError(JSContext *ctx, const char *fmt, ...);
-JSValue JS_ThrowOutOfMemory(JSContext *ctx);
-
-void __JS_FreeValue(JSContext *ctx, JSValue v);
-static inline void JS_FreeValue(JSContext *ctx, JSValue v)
-{
-    if (JS_VALUE_HAS_REF_COUNT(v)) {
-        JSRefCountHeader *p = JS_VALUE_GET_PTR(v);
-        if (--p->ref_count <= 0) {
-            __JS_FreeValue(ctx, v);
-        }
-    }
-}
-void __JS_FreeValueRT(JSRuntime *rt, JSValue v);
-static inline void JS_FreeValueRT(JSRuntime *rt, JSValue v)
-{
-    if (JS_VALUE_HAS_REF_COUNT(v)) {
-        JSRefCountHeader *p = JS_VALUE_GET_PTR(v);
-        if (--p->ref_count <= 0) {
-            __JS_FreeValueRT(rt, v);
-        }
-    }
-}
-
-static inline JSValue JS_DupValue(JSContext *ctx, JSValueConst v)
-{
-    if (JS_VALUE_HAS_REF_COUNT(v)) {
-        JSRefCountHeader *p = JS_VALUE_GET_PTR(v);
-        p->ref_count++;
-    }
-    return (JSValue)v;
-}
-
-static inline JSValue JS_DupValueRT(JSRuntime *rt, JSValueConst v)
-{
-    if (JS_VALUE_HAS_REF_COUNT(v)) {
-        JSRefCountHeader *p = JS_VALUE_GET_PTR(v);
-        p->ref_count++;
-    }
-    return (JSValue)v;
-}
-
-int JS_ToBool(JSContext *ctx, JSValueConst val); /* return -1 for JS_EXCEPTION */
-int JS_ToInt32(JSContext *ctx, int32_t *pres, JSValueConst val);
-static int inline JS_ToUint32(JSContext *ctx, uint32_t *pres, JSValueConst val)
-{
-    return JS_ToInt32(ctx, (int32_t*)pres, val);
-}
-int JS_ToInt64(JSContext *ctx, int64_t *pres, JSValueConst val);
-int JS_ToIndex(JSContext *ctx, uint64_t *plen, JSValueConst val);
-int JS_ToFloat64(JSContext *ctx, double *pres, JSValueConst val);
-int JS_ToBigInt64(JSContext *ctx, int64_t *pres, JSValueConst val);
-
-JSValue JS_NewStringLen(JSContext *ctx, const char *str1, size_t len1);
-JSValue JS_NewString(JSContext *ctx, const char *str);
-JSValue JS_NewAtomString(JSContext *ctx, const char *str);
-JSValue JS_ToString(JSContext *ctx, JSValueConst val);
-JSValue JS_ToPropertyKey(JSContext *ctx, JSValueConst val);
-const char *JS_ToCStringLen2(JSContext *ctx, size_t *plen, JSValueConst val1, JS_BOOL cesu8);
-static inline const char *JS_ToCStringLen(JSContext *ctx, size_t *plen, JSValueConst val1)
-{
-    return JS_ToCStringLen2(ctx, plen, val1, 0);
-}
-static inline const char *JS_ToCString(JSContext *ctx, JSValueConst val1)
-{
-    return JS_ToCStringLen2(ctx, NULL, val1, 0);
-}
-void JS_FreeCString(JSContext *ctx, const char *ptr);
-
-JSValue JS_NewObjectProtoClass(JSContext *ctx, JSValueConst proto, JSClassID class_id);
-JSValue JS_NewObjectClass(JSContext *ctx, int class_id);
-JSValue JS_NewObjectProto(JSContext *ctx, JSValueConst proto);
-JSValue JS_NewObject(JSContext *ctx);
-
-JS_BOOL JS_IsFunction(JSContext* ctx, JSValueConst val);
-JS_BOOL JS_IsConstructor(JSContext* ctx, JSValueConst val);
-
-JSValue JS_NewArray(JSContext *ctx);
-int JS_IsArray(JSContext *ctx, JSValueConst val);
-
-JSValue JS_GetPropertyInternal(JSContext *ctx, JSValueConst obj,
-                               JSAtom prop, JSValueConst receiver,
-                               JS_BOOL throw_ref_error);
-static js_force_inline JSValue JS_GetProperty(JSContext *ctx, JSValueConst this_obj,
-                                              JSAtom prop)
-{
-    return JS_GetPropertyInternal(ctx, this_obj, prop, this_obj, 0);
-}
-JSValue JS_GetPropertyStr(JSContext *ctx, JSValueConst this_obj,
-                          const char *prop);
-JSValue JS_GetPropertyUint32(JSContext *ctx, JSValueConst this_obj,
-                             uint32_t idx);
-
-int JS_SetPropertyInternal(JSContext *ctx, JSValueConst this_obj,
-                           JSAtom prop, JSValue val,
-                           int flags);
-static inline int JS_SetProperty(JSContext *ctx, JSValueConst this_obj,
-                                 JSAtom prop, JSValue val)
-{
-    return JS_SetPropertyInternal(ctx, this_obj, prop, val, JS_PROP_THROW);
-}
-int JS_SetPropertyUint32(JSContext *ctx, JSValueConst this_obj,
-                         uint32_t idx, JSValue val);
-int JS_SetPropertyInt64(JSContext *ctx, JSValueConst this_obj,
-                        int64_t idx, JSValue val);
-int JS_SetPropertyStr(JSContext *ctx, JSValueConst this_obj,
-                      const char *prop, JSValue val);
-int JS_HasProperty(JSContext *ctx, JSValueConst this_obj, JSAtom prop);
-int JS_IsExtensible(JSContext *ctx, JSValueConst obj);
-int JS_PreventExtensions(JSContext *ctx, JSValueConst obj);
-int JS_DeleteProperty(JSContext *ctx, JSValueConst obj, JSAtom prop, int flags);
-int JS_SetPrototype(JSContext *ctx, JSValueConst obj, JSValueConst proto_val);
-JSValueConst JS_GetPrototype(JSContext *ctx, JSValueConst val);
-
-#define JS_GPN_STRING_MASK  (1 << 0)
-#define JS_GPN_SYMBOL_MASK  (1 << 1)
-#define JS_GPN_PRIVATE_MASK (1 << 2)
-/* only include the enumerable properties */
-#define JS_GPN_ENUM_ONLY    (1 << 4)
-/* set theJSPropertyEnum.is_enumerable field */
-#define JS_GPN_SET_ENUM     (1 << 5)
-
-int JS_GetOwnPropertyNames(JSContext *ctx, JSPropertyEnum **ptab,
-                           uint32_t *plen, JSValueConst obj, int flags);
-int JS_GetOwnProperty(JSContext *ctx, JSPropertyDescriptor *desc,
-                      JSValueConst obj, JSAtom prop);
-
-JSValue JS_ParseJSON(JSContext *ctx, const char *buf, size_t buf_len,
-                     const char *filename);
-JSValue JS_Call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj,
-                int argc, JSValueConst *argv);
-JSValue JS_Invoke(JSContext *ctx, JSValueConst this_val, JSAtom atom,
-                  int argc, JSValueConst *argv);
-JSValue JS_CallConstructor(JSContext *ctx, JSValueConst func_obj,
-                           int argc, JSValueConst *argv);
-JSValue JS_CallConstructor2(JSContext *ctx, JSValueConst func_obj,
-                            JSValueConst new_target,
-                            int argc, JSValueConst *argv);
-JSValue JS_Eval(JSContext *ctx, const char *input, size_t input_len,
-                const char *filename, int eval_flags);
-#define JS_EVAL_BINARY_LOAD_ONLY (1 << 0) /* only load the module */
-JSValue JS_EvalBinary(JSContext *ctx,
-                      const uint8_t *buf, size_t buf_len, int flags);
-JSValue JS_GetGlobalObject(JSContext *ctx);
-int JS_IsInstanceOf(JSContext *ctx, JSValueConst val, JSValueConst obj);
-int JS_DefineProperty(JSContext *ctx, JSValueConst this_obj,
-                      JSAtom prop, JSValueConst val,
-                      JSValueConst getter, JSValueConst setter, int flags);
-int JS_DefinePropertyValue(JSContext *ctx, JSValueConst this_obj,
-                           JSAtom prop, JSValue val, int flags);
-int JS_DefinePropertyValueUint32(JSContext *ctx, JSValueConst this_obj,
-                                 uint32_t idx, JSValue val, int flags);
-int JS_DefinePropertyValueStr(JSContext *ctx, JSValueConst this_obj,
-                              const char *prop, JSValue val, int flags);
-int JS_DefinePropertyGetSet(JSContext *ctx, JSValueConst this_obj,
-                            JSAtom prop, JSValue getter, JSValue setter,
-                            int flags);
-void JS_SetOpaque(JSValue obj, void *opaque);
-void *JS_GetOpaque(JSValueConst obj, JSClassID class_id);
-void *JS_GetOpaque2(JSContext *ctx, JSValueConst obj, JSClassID class_id);
-
-typedef void JSFreeArrayBufferDataFunc(JSRuntime *rt, void *opaque, void *ptr);
-JSValue JS_NewArrayBuffer(JSContext *ctx, uint8_t *buf, size_t len,
-                          JSFreeArrayBufferDataFunc *free_func, void *opaque,
-                          JS_BOOL is_shared);
-JSValue JS_NewArrayBufferCopy(JSContext *ctx, const uint8_t *buf, size_t len);
-void JS_DetachArrayBuffer(JSContext *ctx, JSValueConst obj);
-uint8_t *JS_GetArrayBuffer(JSContext *ctx, size_t *psize, JSValueConst obj);
-
-JSValue JS_NewPromiseCapability(JSContext *ctx, JSValue *resolving_funcs);
-
-/* return != 0 if the JS code needs to be interrupted */
-typedef int JSInterruptHandler(JSRuntime *rt, void *opaque);
-void JS_SetInterruptHandler(JSRuntime *rt, JSInterruptHandler *cb, void *opaque);
-/* if can_block is TRUE, Atomics.wait() can be used */
-void JS_SetCanBlock(JSRuntime *rt, JS_BOOL can_block);
-
-typedef struct JSModuleDef JSModuleDef;
-
-/* return the module specifier (allocated with js_malloc()) or NULL if
-   exception */
-typedef char *JSModuleNormalizeFunc(JSContext *ctx,
-                                    const char *module_base_name,
-                                    const char *module_name, void *opaque);
-typedef JSModuleDef *JSModuleLoaderFunc(JSContext *ctx,
-                                        const char *module_name, void *opaque);
-
-/* module_normalize = NULL is allowed and invokes the default module
-   filename normalizer */
-void JS_SetModuleLoaderFunc(JSRuntime *rt,
-                            JSModuleNormalizeFunc *module_normalize,
-                            JSModuleLoaderFunc *module_loader, void *opaque);
-
-/* JS Job support */
-
-typedef JSValue JSJobFunc(JSContext *ctx, int argc, JSValueConst *argv);
-int JS_EnqueueJob(JSContext *ctx, JSJobFunc *job_func, int argc, JSValueConst *argv);
-
-JS_BOOL JS_IsJobPending(JSRuntime *rt);
-int JS_ExecutePendingJob(JSRuntime *rt, JSContext **pctx);
-
-/* Object Writer/Reader (currently only used to handle precompiled code) */
-#define JS_WRITE_OBJ_BYTECODE (1 << 0) /* allow function/module */
-#define JS_WRITE_OBJ_BSWAP    (1 << 1) /* byte swapped output */
-uint8_t *JS_WriteObject(JSContext *ctx, size_t *psize, JSValueConst obj,
-                        int flags);
-#define JS_READ_OBJ_BYTECODE  (1 << 0) /* allow function/module */
-#define JS_READ_OBJ_ROM_DATA  (1 << 1) /* avoid duplicating 'buf' data */
-JSValue JS_ReadObject(JSContext *ctx, const uint8_t *buf, size_t buf_len,
-                      int flags);
-JSValue JS_EvalFunction(JSContext *ctx, JSValue fun_obj, JSValueConst this_obj);
-
-/* C function definition */
-typedef enum JSCFunctionEnum {  /* XXX: should rename for namespace isolation */
-    JS_CFUNC_generic,
-    JS_CFUNC_generic_magic,
-    JS_CFUNC_constructor,
-    JS_CFUNC_constructor_magic,
-    JS_CFUNC_constructor_or_func,
-    JS_CFUNC_constructor_or_func_magic,
-    JS_CFUNC_f_f,
-    JS_CFUNC_f_f_f,
-    JS_CFUNC_getter,
-    JS_CFUNC_setter,
-    JS_CFUNC_getter_magic,
-    JS_CFUNC_setter_magic,
-    JS_CFUNC_iterator_next,
-} JSCFunctionEnum;
-
-typedef union JSCFunctionType {
-    JSCFunction *generic;
-    JSValue (*generic_magic)(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic);
-    JSCFunction *constructor;
-    JSValue (*constructor_magic)(JSContext *ctx, JSValueConst new_target, int argc, JSValueConst *argv, int magic);
-    JSCFunction *constructor_or_func;
-    double (*f_f)(double);
-    double (*f_f_f)(double, double);
-    JSValue (*getter)(JSContext *ctx, JSValueConst this_val);
-    JSValue (*setter)(JSContext *ctx, JSValueConst this_val, JSValueConst val);
-    JSValue (*getter_magic)(JSContext *ctx, JSValueConst this_val, int magic);
-    JSValue (*setter_magic)(JSContext *ctx, JSValueConst this_val, JSValueConst val, int magic);
-    JSValue (*iterator_next)(JSContext *ctx, JSValueConst this_val,
-                             int argc, JSValueConst *argv, int *pdone, int magic);
-} JSCFunctionType;
-
-JSValue JS_NewCFunction2(JSContext *ctx, JSCFunction *func,
-                         const char *name,
-                         int length, JSCFunctionEnum cproto, int magic);
-JSValue JS_NewCFunctionData(JSContext *ctx, JSCFunctionData *func,
-                            int length, int magic, int data_len,
-                            JSValueConst *data);
-
-static inline JSValue JS_NewCFunction(JSContext *ctx, JSCFunction *func, const char *name,
-                                      int length)
-{
-    return JS_NewCFunction2(ctx, func, name, length, JS_CFUNC_generic, 0);
-}
-
-static inline JSValue JS_NewCFunctionMagic(JSContext *ctx, JSCFunctionMagic *func,
-                                           const char *name,
-                                           int length, JSCFunctionEnum cproto, int magic)
-{
-    return JS_NewCFunction2(ctx, (JSCFunction *)func, name, length, cproto, magic);
-}
-
-/* C property definition */
-
-typedef struct JSCFunctionListEntry {
-    const char *name;
-    uint8_t prop_flags;
-    uint8_t def_type;
-    int16_t magic;
-    union {
-        struct {
-            uint8_t length; /* XXX: should move outside union */
-            uint8_t cproto; /* XXX: should move outside union */
-            JSCFunctionType cfunc;
-        } func;
-        struct {
-            JSCFunctionType get;
-            JSCFunctionType set;
-        } getset;
-        struct {
-            const char *name;
-            int base;
-        } alias;
-        struct {
-            const struct JSCFunctionListEntry *tab;
-            int len;
-        } prop_list;
-        const char *str;
-        int32_t i32;
-        int64_t i64;
-        double f64;
-    } u;
-} JSCFunctionListEntry;
-
-#define JS_DEF_CFUNC          0
-#define JS_DEF_CGETSET        1
-#define JS_DEF_CGETSET_MAGIC  2
-#define JS_DEF_PROP_STRING    3
-#define JS_DEF_PROP_INT32     4
-#define JS_DEF_PROP_INT64     5
-#define JS_DEF_PROP_DOUBLE    6
-#define JS_DEF_PROP_UNDEFINED  7
-#define JS_DEF_OBJECT         8
-#define JS_DEF_ALIAS          9
-
-#define JS_CFUNC_DEF(name, length, func1) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, 0, .u.func = { length, JS_CFUNC_generic, { .generic = func1 } } }
-#define JS_CFUNC_MAGIC_DEF(name, length, func1, magic) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, magic, .u.func = { length, JS_CFUNC_generic_magic, { .generic_magic = func1 } } }
-#define JS_CFUNC_SPECIAL_DEF(name, length, cproto, func1) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, 0, .u.func = { length, JS_CFUNC_ ## cproto, { .cproto = func1 } } }
-#define JS_ITERATOR_NEXT_DEF(name, length, func1, magic) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, magic, .u.func = { length, JS_CFUNC_iterator_next, { .iterator_next = func1 } } }
-#define JS_CGETSET_DEF(name, fgetter, fsetter) { name, JS_PROP_CONFIGURABLE, JS_DEF_CGETSET, 0, .u.getset.get.getter = fgetter, .u.getset.set.setter = fsetter }
-#define JS_CGETSET_MAGIC_DEF(name, fgetter, fsetter, magic) { name, JS_PROP_CONFIGURABLE, JS_DEF_CGETSET_MAGIC, magic, .u.getset.get.getter_magic = fgetter, .u.getset.set.setter_magic = fsetter }
-#define JS_PROP_STRING_DEF(name, cstr, prop_flags) { name, prop_flags, JS_DEF_PROP_STRING, 0, .u.str = cstr }
-#define JS_PROP_INT32_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_INT32, 0, .u.i32 = val }
-#define JS_PROP_INT64_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_INT64, 0, .u.i64 = val }
-#define JS_PROP_DOUBLE_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_DOUBLE, 0, .u.f64 = val }
-#define JS_PROP_UNDEFINED_DEF(name, prop_flags) { name, prop_flags, JS_DEF_PROP_UNDEFINED, 0, .u.i32 = 0 }
-#define JS_OBJECT_DEF(name, tab, len, prop_flags) { name, prop_flags, JS_DEF_OBJECT, 0, .u.prop_list = { tab, len } }
-#define JS_ALIAS_DEF(name, from) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_ALIAS, 0, .u.alias = { from, -1 } }
-#define JS_ALIAS_BASE_DEF(name, from, base) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_ALIAS, 0, .u.alias = { from, base } }
-
-void JS_SetPropertyFunctionList(JSContext *ctx, JSValueConst obj,
-                                const JSCFunctionListEntry *tab,
-                                int len);
-
-/* C module definition */
-
-typedef int JSModuleInitFunc(JSContext *ctx, JSModuleDef *m);
-
-JSModuleDef *JS_NewCModule(JSContext *ctx, const char *name_str,
-                           JSModuleInitFunc *func);
-/* can only be called before the module is instantiated */
-int JS_AddModuleExport(JSContext *ctx, JSModuleDef *m, const char *name_str);
-int JS_AddModuleExportList(JSContext *ctx, JSModuleDef *m,
-                           const JSCFunctionListEntry *tab, int len);
-/* can only be called after the module is instantiated */
-int JS_SetModuleExport(JSContext *ctx, JSModuleDef *m, const char *export_name,
-                       JSValue val);
-int JS_SetModuleExportList(JSContext *ctx, JSModuleDef *m,
-                           const JSCFunctionListEntry *tab, int len);
-
-#undef js_unlikely
-#undef js_force_inline
-
-#endif /* QUICKJS_H */
diff --git a/upstream-quickjs b/upstream-quickjs
new file mode 160000
index 0000000..b5e6289
--- /dev/null
+++ b/upstream-quickjs
@@ -0,0 +1 @@
+Subproject commit b5e62895c619d4ffc75c9d822c8d85f1ece77e5b
diff --git a/windows-test.cmd b/windows-test.cmd
deleted file mode 100755
index ac2d448..0000000
--- a/windows-test.cmd
+++ /dev/null
@@ -1 +0,0 @@
-pipenv run python setup.py build -c mingw32 && pipenv run python setup.py develop && pipenv run python -m unittest