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 --- .../internal/streams/add-abort-signal.mjs | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 ext/node/polyfills/internal/streams/add-abort-signal.mjs (limited to 'ext/node/polyfills/internal/streams/add-abort-signal.mjs') diff --git a/ext/node/polyfills/internal/streams/add-abort-signal.mjs b/ext/node/polyfills/internal/streams/add-abort-signal.mjs new file mode 100644 index 000000000..5d7512f1c --- /dev/null +++ b/ext/node/polyfills/internal/streams/add-abort-signal.mjs @@ -0,0 +1,48 @@ +// 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 { AbortError, ERR_INVALID_ARG_TYPE } from "internal:deno_node/polyfills/internal/errors.ts"; +import eos from "internal:deno_node/polyfills/internal/streams/end-of-stream.mjs"; + +// This method is inlined here for readable-stream +// It also does not allow for signal to not exist on the stream +// https://github.com/nodejs/node/pull/36061#discussion_r533718029 +const validateAbortSignal = (signal, name) => { + if ( + typeof signal !== "object" || + !("aborted" in signal) + ) { + throw new ERR_INVALID_ARG_TYPE(name, "AbortSignal", signal); + } +}; + +function isStream(obj) { + return !!(obj && typeof obj.pipe === "function"); +} + +function addAbortSignal(signal, stream) { + validateAbortSignal(signal, "signal"); + if (!isStream(stream)) { + throw new ERR_INVALID_ARG_TYPE("stream", "stream.Stream", stream); + } + return addAbortSignalNoValidate(signal, stream); +} +function addAbortSignalNoValidate(signal, stream) { + if (typeof signal !== "object" || !("aborted" in signal)) { + return stream; + } + const onAbort = () => { + stream.destroy(new AbortError()); + }; + if (signal.aborted) { + onAbort(); + } else { + signal.addEventListener("abort", onAbort); + eos(stream, () => signal.removeEventListener("abort", onAbort)); + } + return stream; +} + +export default { addAbortSignal, addAbortSignalNoValidate }; +export { addAbortSignal, addAbortSignalNoValidate }; -- cgit v1.2.3