From d47147fb6ad229b1c039aff9d0959b6e281f4df5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bartek=20Iwa=C5=84czuk?= Date: Tue, 14 Feb 2023 17:38:45 +0100 Subject: feat(ext/node): embed std/node into the snapshot (#17724) 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 Co-authored-by: Divy Srivastava Co-authored-by: Yoshiya Hinosawa --- .../polyfills/internal/streams/lazy_transform.mjs | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 ext/node/polyfills/internal/streams/lazy_transform.mjs (limited to 'ext/node/polyfills/internal/streams/lazy_transform.mjs') diff --git a/ext/node/polyfills/internal/streams/lazy_transform.mjs b/ext/node/polyfills/internal/streams/lazy_transform.mjs new file mode 100644 index 000000000..2bb93bd91 --- /dev/null +++ b/ext/node/polyfills/internal/streams/lazy_transform.mjs @@ -0,0 +1,53 @@ +// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. +// Copyright Joyent and Node contributors. All rights reserved. MIT license. +// deno-lint-ignore-file + +import { getDefaultEncoding } from "internal:deno_node/polyfills/internal/crypto/util.ts"; +import stream from "internal:deno_node/polyfills/stream.ts"; + +function LazyTransform(options) { + this._options = options; +} +Object.setPrototypeOf(LazyTransform.prototype, stream.Transform.prototype); +Object.setPrototypeOf(LazyTransform, stream.Transform); + +function makeGetter(name) { + return function () { + stream.Transform.call(this, this._options); + this._writableState.decodeStrings = false; + + if (!this._options || !this._options.defaultEncoding) { + this._writableState.defaultEncoding = getDefaultEncoding(); + } + + return this[name]; + }; +} + +function makeSetter(name) { + return function (val) { + Object.defineProperty(this, name, { + value: val, + enumerable: true, + configurable: true, + writable: true, + }); + }; +} + +Object.defineProperties(LazyTransform.prototype, { + _readableState: { + get: makeGetter("_readableState"), + set: makeSetter("_readableState"), + configurable: true, + enumerable: true, + }, + _writableState: { + get: makeGetter("_writableState"), + set: makeSetter("_writableState"), + configurable: true, + enumerable: true, + }, +}); + +export default LazyTransform; -- cgit v1.2.3