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feat(ext/node): embed std/node into the snapshot (#17724)

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This commit moves "deno_std/node" in "ext/node" crate. The code is
transpiled and snapshotted during the build process.

During the first pass a minimal amount of work was done to create the
snapshot, a lot of code in "ext/node" depends on presence of "Deno"
global. This code will be gradually fixed in the follow up PRs to migrate
it to import relevant APIs from "internal:" modules.

Currently the code from snapshot is not used in any way, and all
Node/npm compatibility still uses code from 
"https://deno.land/std/node" (or from the location specified by 
"DENO_NODE_COMPAT_URL"). This will also be handled in a follow 
up PRs.

---------

Co-authored-by: crowlkats <crowlkats@toaxl.com>
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>
This commit is contained in:
Bartek Iwańczuk 2023-02-14 17:38:45 +01:00 • committed by GitHub
parent 1d00bbe47e
commit d47147fb6a
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332 changed files with 98173 additions and 8 deletions
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72
ext/node/polyfills/internal/normalize_encoding.mjs Normal file
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@ -0,0 +1,72 @@
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
export function normalizeEncoding(enc) {
if (enc == null || enc === "utf8" || enc === "utf-8") return "utf8";
return slowCases(enc);
}
export function slowCases(enc) {
switch (enc.length) {
case 4:
if (enc === "UTF8") return "utf8";
if (enc === "ucs2" || enc === "UCS2") return "utf16le";
enc = `${enc}`.toLowerCase();
if (enc === "utf8") return "utf8";
if (enc === "ucs2") return "utf16le";
break;
case 3:
if (
enc === "hex" || enc === "HEX" ||
`${enc}`.toLowerCase() === "hex"
) {
return "hex";
}
break;
case 5:
if (enc === "ascii") return "ascii";
if (enc === "ucs-2") return "utf16le";
if (enc === "UTF-8") return "utf8";
if (enc === "ASCII") return "ascii";
if (enc === "UCS-2") return "utf16le";
enc = `${enc}`.toLowerCase();
if (enc === "utf-8") return "utf8";
if (enc === "ascii") return "ascii";
if (enc === "ucs-2") return "utf16le";
break;
case 6:
if (enc === "base64") return "base64";
if (enc === "latin1" || enc === "binary") return "latin1";
if (enc === "BASE64") return "base64";
if (enc === "LATIN1" || enc === "BINARY") return "latin1";
enc = `${enc}`.toLowerCase();
if (enc === "base64") return "base64";
if (enc === "latin1" || enc === "binary") return "latin1";
break;
case 7:
if (
enc === "utf16le" || enc === "UTF16LE" ||
`${enc}`.toLowerCase() === "utf16le"
) {
return "utf16le";
}
break;
case 8:
if (
enc === "utf-16le" || enc === "UTF-16LE" ||
`${enc}`.toLowerCase() === "utf-16le"
) {
return "utf16le";
}
break;
case 9:
if (
enc === "base64url" || enc === "BASE64URL" ||
`${enc}`.toLowerCase() === "base64url"
) {
return "base64url";
}
break;
default:
if (enc === "") return "utf8";
}
}