@reactivex/rxjs
Version:
Reactive Extensions for modern JavaScript
31 lines • 918 B
JavaScript
import { Subscription } from './Subscription';
/**
* We need this JSDoc comment for affecting ESDoc.
* @ignore
* @extends {Ignored}
*/
export class SubjectSubscription extends Subscription {
constructor(subject, observer) {
super();
this.subject = subject;
this.observer = observer;
this.isUnsubscribed = false;
}
unsubscribe() {
if (this.isUnsubscribed) {
return;
}
this.isUnsubscribed = true;
const subject = this.subject;
const observers = subject.observers;
this.subject = null;
if (!observers || observers.length === 0 || subject.isUnsubscribed) {
return;
}
const subscriberIndex = observers.indexOf(this.observer);
if (subscriberIndex !== -1) {
observers.splice(subscriberIndex, 1);
}
}
}
//# sourceMappingURL=SubjectSubscription.js.map