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- import { Subscriber } from '../Subscriber';
- import { EmptyObservable } from '../observable/EmptyObservable';
- /**
- * Returns an Observable that repeats the stream of items emitted by the source Observable at most count times.
- *
- * <img src="./img/repeat.png" width="100%">
- *
- * @param {number} [count] The number of times the source Observable items are repeated, a count of 0 will yield
- * an empty Observable.
- * @return {Observable} An Observable that repeats the stream of items emitted by the source Observable at most
- * count times.
- * @method repeat
- * @owner Observable
- */
- export function repeat(count = -1) {
- return (source) => {
- if (count === 0) {
- return new EmptyObservable();
- }
- else if (count < 0) {
- return source.lift(new RepeatOperator(-1, source));
- }
- else {
- return source.lift(new RepeatOperator(count - 1, source));
- }
- };
- }
- class RepeatOperator {
- constructor(count, source) {
- this.count = count;
- this.source = source;
- }
- call(subscriber, source) {
- return source.subscribe(new RepeatSubscriber(subscriber, this.count, this.source));
- }
- }
- /**
- * We need this JSDoc comment for affecting ESDoc.
- * @ignore
- * @extends {Ignored}
- */
- class RepeatSubscriber extends Subscriber {
- constructor(destination, count, source) {
- super(destination);
- this.count = count;
- this.source = source;
- }
- complete() {
- if (!this.isStopped) {
- const { source, count } = this;
- if (count === 0) {
- return super.complete();
- }
- else if (count > -1) {
- this.count = count - 1;
- }
- source.subscribe(this._unsubscribeAndRecycle());
- }
- }
- }
- //# sourceMappingURL=repeat.js.map
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