release(crates): v0.59.0

[oxc-bot]

[0.59.0] - 2025-03-18

• 3d17860 ast: [BREAKING] Reorder fields of TemplateElement (refactor(ast)!: reorder fields of TemplateElement #9821) (overlookmotel)

• ce6808a parser: [BREAKING] Rename type_parameters to type_arguments where needed (fix(parser)!: rename type_parameters to type_arguments where needed  #9815) (hi-ogawa)

Features

• 65643bc allocator: Remove drop operations from Vec2 (feat(allocator): remove drop operations from Vec2 #9679) (Dunqing)
• 5cc614a allocator: Replace allocator_ap2's Vec with Vec2 (feat(allocator): replace allocator_ap2's Vec with Vec2 #9656) (Dunqing)
• caa477c allocator/vec: Remove ManuallyDrop wrapper (feat(allocator/vec): remove ManuallyDrop wrapper #9742) (Dunqing)
• db946e6 ast/estree: Order TS fields last by default (feat(ast/estree): order TS fields last by default #9820) (overlookmotel)
• 06518ae napi/parser: JSON.parse the returned AST in wasm (feat(napi/parser): JSON.parse the returned AST in wasm #9630) (Boshen)

Bug Fixes

• 3f858c4 ast/estree: Add directive field to ExpressionStatement in TS AST (fix(ast/estree): add directive field to ExpressionStatement in TS AST #9844) (overlookmotel)
• cd18358 ast/extree: Fix Class.implements (fix(ast/extree): fix Class.implements #9817) (hi-ogawa)
• a113f7e parser: Error when } and > appear in JSXText (fix(parser): error when } and > appear in JSXText #9777) (Boshen)
• 8abb4f6 parser: Correctly set export_kind for ExportNamedDeclaration (fix(parser): correctly set export_kind for ExportNamedDeclaration #9827) (camc314)
• f707d1f parser: Set kind of var_declarator correctly for using decl (fix(parser): set kind of var_declarator correctly for using decl #9753) (camc314)

Performance

• 17a9320 allocator/vec2: Optimize reserving memory (perf(allocator/vec2): optimize reserving memory #9792) (Dunqing)
• 6fc26db lexer: Mark error case as cold branch when parsing JSXText (perf(lexer): mark error case as cold branch when parsing JSXText #9831) (overlookmotel)
• 84fa538 minify: Use mimalloc-safe to replace mimalloc (perf(minify): use mimalloc-safe to replace mimalloc #9810) (LongYinan)

Refactor

• d13817e allocator: Improve safety of String::from_utf8_unchecked (refactor(allocator): improve safety of String::from_utf8_unchecked #9772) (overlookmotel)
• a1a8b93 allocator/vec: Add comment about lifetime bound on CloneIn for Vec (refactor(allocator/vec): add comment about lifetime bound on CloneIn for Vec #9771) (overlookmotel)
• 3945385 parser: Simplify parsing extends clause (refactor(parser): simplify parsing extends clause #9773) (Dunqing)
• 43e8efd transformer/using: Remove use of child scope ids in enter_program (refactor(transformer/using): remove use of child scope ids in enter_program #9748) (camc314)
• 1d60e85 traverse: Use ArenaBox alias (refactor(traverse): use ArenaBox alias #9759) (overlookmotel)
• bda4b9a traverse: Add TraverseCtx::insert_scope_below_statements (refactor(traverse): add TraverseCtx::insert_scope_below_statements #9757) (overlookmotel)
• d7dda5c traverse: Add doc comment for TraverseScoping::insert_scope_below_statements and rename var (refactor(traverse): add doc comment for TraverseScoping::insert_scope_below_statements and rename var #9756) (overlookmotel)

Testing

• 48bac92 napi/parser: Test wasi browser (test(napi/parser): test wasi browser #9793) (Hiroshi Ogawa)

[graphite-app]

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[github-actions]

Monitor Oxc

suite	result
Isolated Declarations	✅
(codegen)	✅
(compressor)	❌
(mangler)	✅
(dce)	❌
(transformer)	❌
(whitespace)	❌

[codspeed-hq]

CodSpeed Performance Report

Merging #9850 will create unknown performance changes

_{Comparing release/crates-1742276937 (ac79f43) with main (a68e45c)}

Summary

🆕 33 new benchmarks

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
🆕	codegen[checker.ts]	N/A	22.6 ms	N/A
🆕	codegen_sourcemap[checker.ts]	N/A	65.7 ms	N/A
🆕	isolated-declarations[vue-id.ts]	N/A	57.8 ms	N/A
🆕	lexer[RadixUIAdoptionSection.jsx]	N/A	21 µs	N/A
🆕	lexer[antd.js]	N/A	24.1 ms	N/A
🆕	lexer[cal.com.tsx]	N/A	5.7 ms	N/A
🆕	lexer[checker.ts]	N/A	14.5 ms	N/A
🆕	lexer[pdf.mjs]	N/A	3.8 ms	N/A
🆕	linter[RadixUIAdoptionSection.jsx]	N/A	2.7 ms	N/A
🆕	linter[cal.com.tsx]	N/A	1.2 s	N/A
🆕	linter[checker.ts]	N/A	3 s	N/A
🆕	mangler[antd.js]	N/A	15.8 ms	N/A
🆕	mangler[react.development.js]	N/A	293 µs	N/A
🆕	mangler[typescript.js]	N/A	39.3 ms	N/A
🆕	minifier[antd.js]	N/A	163.1 ms	N/A
🆕	minifier[react.development.js]	N/A	1.8 ms	N/A
🆕	minifier[typescript.js]	N/A	288.1 ms	N/A
🆕	estree[checker.ts]	N/A	87.5 ms	N/A
🆕	parser[RadixUIAdoptionSection.jsx]	N/A	91 µs	N/A
🆕	parser[antd.js]	N/A	112.5 ms	N/A
...	...	...	...	...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.