| 1 | import { AsyncIterableX } from './asynciterablex';
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| 2 | import { wrapWithAbort } from './operators/withabort';
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| 3 | import { throwIfAborted } from '../aborterror';
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| 4 | class DeferAsyncIterable extends AsyncIterableX {
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| 5 | constructor(fn) {
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| 6 | super();
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| 7 | this._fn = fn;
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| 8 | }
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| 9 | async *[Symbol.asyncIterator](signal) {
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| 10 | throwIfAborted(signal);
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| 11 | const items = await this._fn(signal);
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| 12 | for await (const item of wrapWithAbort(items, signal)) {
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| 13 | yield item;
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| 14 | }
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| 15 | }
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| 16 | }
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| 17 | /**
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| 18 | * Returns an async-iterable sequence that invokes the specified factory function whenever a call to [Symbol.asyncIterator] has been made.
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| 19 | *
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| 20 | * @export
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| 21 | * @template TSource The type of the elements in the sequence returned by the factory function, and in the resulting sequence.
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| 22 | * @param {((signal?: AbortSignal) => AsyncIterable<TSource> | Promise<AsyncIterable<TSource>>)} factory Async-iterable factory function to
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| 23 | * invoke for each call to [Symbol.asyncIterator].
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| 24 | * @returns {AsyncIterableX<TSource>} An async-iterable sequence whose observers trigger an invocation of the given async-iterable factory function.
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| 25 | */
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| 26 | export function defer(factory) {
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| 27 | return new DeferAsyncIterable(factory);
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| 28 | }
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| 29 |
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| 30 | //# sourceMappingURL=defer.mjs.map
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