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Last change
on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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initial commit
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File size:
1.1 KB
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| 1 | import { Subject } from './Subject';
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| 2 | import { Subscription } from './Subscription';
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| 3 | export class AsyncSubject extends Subject {
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| 4 | constructor() {
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| 5 | super(...arguments);
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| 6 | this.value = null;
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| 7 | this.hasNext = false;
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| 8 | this.hasCompleted = false;
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| 9 | }
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| 10 | _subscribe(subscriber) {
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| 11 | if (this.hasError) {
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| 12 | subscriber.error(this.thrownError);
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| 13 | return Subscription.EMPTY;
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| 14 | }
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| 15 | else if (this.hasCompleted && this.hasNext) {
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| 16 | subscriber.next(this.value);
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| 17 | subscriber.complete();
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| 18 | return Subscription.EMPTY;
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| 19 | }
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| 20 | return super._subscribe(subscriber);
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| 21 | }
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| 22 | next(value) {
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| 23 | if (!this.hasCompleted) {
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| 24 | this.value = value;
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| 25 | this.hasNext = true;
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| 26 | }
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| 27 | }
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| 28 | error(error) {
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| 29 | if (!this.hasCompleted) {
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| 30 | super.error(error);
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| 31 | }
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| 32 | }
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| 33 | complete() {
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| 34 | this.hasCompleted = true;
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| 35 | if (this.hasNext) {
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| 36 | super.next(this.value);
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| 37 | }
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| 38 | super.complete();
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| 39 | }
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| 40 | }
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| 41 | //# sourceMappingURL=AsyncSubject.js.map |
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