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[wasm] Rework fetch #61639

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Merged
lewing merged 8 commits into from
Nov 16, 2021
Merged

[wasm] Rework fetch #61639

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2178a57
Unify some code
lewing Nov 15, 2021
8eb230a
Work around v8 not having a nice way to convert to string
lewing Nov 16, 2021
c7bef9e
redo naming and formatting
lewing Nov 16, 2021
3b2e5ce
do it all aync
lewing Nov 16, 2021
d9438a4
Trap more exceptions again and drop _get_fetch_implmentation
lewing Nov 16, 2021
e8e2982
Fix the type definitions for UTF8ArrayToString
lewing Nov 16, 2021
07c6f90
Fix accidental sync call
lewing Nov 16, 2021
3bfbd66
Remove TypedArray import
lewing Nov 16, 2021
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Fix accidental sync call
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@lewing
lewing committed Nov 16, 2021
commit 07c6f90a15805c7fc4f975c42608f7923375ac7e
9 changes: 5 additions & 4 deletions src/mono/wasm/runtime/startup.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -64,7 +64,7 @@ async function _fetch_asset(url: string): Promise<Response> {
else if (ENVIRONMENT_IS_NODE) {
// eslint-disable-next-line @typescript-eslint/no-var-requires
const fs = require("fs");
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@pavelsavara pavelsavara Nov 16, 2021 •
edited
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This will do require for each call of the _fetch_asset. I admit the previous implementation had the same issue.

const arrayBuffer = await fs.readFileSync(url);
const arrayBuffer = await fs.promises.readFile(url);
return <Response><any> {
ok: true,
url,
Expand All @@ -73,15 +73,16 @@ async function _fetch_asset(url: string): Promise<Response> {
};
}
else if (typeof (read) === "function") {
const arrayBuffer = new Uint8Array(read(url, "binary"));
return <Response><any> {
ok: true,
url,
arrayBuffer: () => new Uint8Array(read(url, "binary")),
json: () => JSON.parse(read(url))
arrayBuffer: () => arrayBuffer,
json: () => JSON.parse(Module.UTF8ArrayToString(arrayBuffer, 0, arrayBuffer.length))
};
}
}
catch (e) {
catch (e: any) {
return <Response><any> {
ok: false,
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@kg kg Nov 16, 2021

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Maybe store the error as a property so the caller can find out what the error was without an extra throw+catch

url,
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