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d47147fb6a
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>
48 lines
1.5 KiB
JavaScript
48 lines
1.5 KiB
JavaScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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// deno-lint-ignore-file
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import { AbortError, ERR_INVALID_ARG_TYPE } from "internal:deno_node/polyfills/internal/errors.ts";
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import eos from "internal:deno_node/polyfills/internal/streams/end-of-stream.mjs";
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// This method is inlined here for readable-stream
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// It also does not allow for signal to not exist on the stream
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// https://github.com/nodejs/node/pull/36061#discussion_r533718029
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const validateAbortSignal = (signal, name) => {
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if (
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typeof signal !== "object" ||
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!("aborted" in signal)
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) {
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throw new ERR_INVALID_ARG_TYPE(name, "AbortSignal", signal);
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}
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};
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function isStream(obj) {
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return !!(obj && typeof obj.pipe === "function");
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}
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function addAbortSignal(signal, stream) {
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validateAbortSignal(signal, "signal");
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if (!isStream(stream)) {
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throw new ERR_INVALID_ARG_TYPE("stream", "stream.Stream", stream);
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}
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return addAbortSignalNoValidate(signal, stream);
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}
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function addAbortSignalNoValidate(signal, stream) {
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if (typeof signal !== "object" || !("aborted" in signal)) {
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return stream;
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}
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const onAbort = () => {
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stream.destroy(new AbortError());
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};
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if (signal.aborted) {
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onAbort();
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} else {
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signal.addEventListener("abort", onAbort);
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eos(stream, () => signal.removeEventListener("abort", onAbort));
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}
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return stream;
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}
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export default { addAbortSignal, addAbortSignalNoValidate };
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export { addAbortSignal, addAbortSignalNoValidate };
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