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// 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 "ext:deno_node/internal/errors.ts";
import eos from "ext:deno_node/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 };
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