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01b6da9d9b
Ref https://github.com/denoland/deno/issues/28836 This PR replaces the _stream.mjs bundle with a file-by-file port instead. A codemod transpiles Node.js internals to ESM. The codemod performs three tasks: translating CJS to ESM, remapping internal dependencies, and hoisting lazy requires as imports. The process is fully automated through the `update_node_stream.ts` script, simplifying future internal updates. The script checks out Node.js from a specific tag defined in the `tests/node_compat/runner`. Additionally, the update enables new tests in our Node test runner and adds features (like compose()) that were missing from the outdated bundle. ## Performance There is a 140KB+ binary size increase on aarch64-apple-darwin and nop startup time stays the same.
52 lines
1.9 KiB
JavaScript
52 lines
1.9 KiB
JavaScript
// deno-lint-ignore-file
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// Copyright 2018-2025 the Deno authors. MIT license.
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import { primordials } from "ext:core/mod.js";
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import Transform from "ext:deno_node/internal/streams/transform.js";
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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// a passthrough stream.
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// basically just the most minimal sort of Transform stream.
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// Every written chunk gets output as-is.
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"use strict";
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const {
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ObjectSetPrototypeOf,
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} = primordials;
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ObjectSetPrototypeOf(PassThrough.prototype, Transform.prototype);
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ObjectSetPrototypeOf(PassThrough, Transform);
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function PassThrough(options) {
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if (!(this instanceof PassThrough)) {
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return new PassThrough(options);
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}
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Transform.call(this, options);
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}
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PassThrough.prototype._transform = function (chunk, encoding, cb) {
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cb(null, chunk);
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};
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export default PassThrough;
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export { PassThrough };
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