53 lines
1.8 KiB
JavaScript
53 lines
1.8 KiB
JavaScript
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import { ReplaySubject } from '../ReplaySubject';
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export function shareReplay(configOrBufferSize, windowTime, scheduler) {
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let config;
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if (configOrBufferSize && typeof configOrBufferSize === 'object') {
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config = configOrBufferSize;
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}
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else {
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config = {
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bufferSize: configOrBufferSize,
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windowTime,
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refCount: false,
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scheduler
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};
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}
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return (source) => source.lift(shareReplayOperator(config));
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}
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function shareReplayOperator({ bufferSize = Number.POSITIVE_INFINITY, windowTime = Number.POSITIVE_INFINITY, refCount: useRefCount, scheduler }) {
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let subject;
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let refCount = 0;
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let subscription;
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let hasError = false;
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let isComplete = false;
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return function shareReplayOperation(source) {
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refCount++;
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if (!subject || hasError) {
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hasError = false;
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subject = new ReplaySubject(bufferSize, windowTime, scheduler);
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subscription = source.subscribe({
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next(value) { subject.next(value); },
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error(err) {
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hasError = true;
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subject.error(err);
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},
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complete() {
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isComplete = true;
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subscription = undefined;
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subject.complete();
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},
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});
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}
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const innerSub = subject.subscribe(this);
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this.add(() => {
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refCount--;
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innerSub.unsubscribe();
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if (subscription && !isComplete && useRefCount && refCount === 0) {
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subscription.unsubscribe();
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subscription = undefined;
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subject = undefined;
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}
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});
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};
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}
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//# sourceMappingURL=shareReplay.js.map
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