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24 lines
704 B
TypeScript
24 lines
704 B
TypeScript
import { ReadableStreamLike } from '../types';
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import { isFunction } from './isFunction';
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export async function* readableStreamLikeToAsyncGenerator<T>(readableStream: ReadableStreamLike<T>): AsyncGenerator<T> {
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const reader = readableStream.getReader();
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try {
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while (true) {
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const { value, done } = await reader.read();
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if (done) {
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return;
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}
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yield value!;
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}
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} finally {
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reader.releaseLock();
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}
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}
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export function isReadableStreamLike<T>(obj: any): obj is ReadableStreamLike<T> {
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// We don't want to use instanceof checks because they would return
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// false for instances from another Realm, like an <iframe>.
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return isFunction(obj?.getReader);
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}
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