31 lines
915 B
JavaScript
31 lines
915 B
JavaScript
|
import { Subscription } from './Subscription';
|
||
|
|
/**
|
||
|
|
* We need this JSDoc comment for affecting ESDoc.
|
||
|
|
* @ignore
|
||
|
|
* @extends {Ignored}
|
||
|
|
*/
|
||
|
|
export class SubjectSubscription extends Subscription {
|
||
|
|
constructor(subject, subscriber) {
|
||
|
|
super();
|
||
|
|
this.subject = subject;
|
||
|
|
this.subscriber = subscriber;
|
||
|
|
this.closed = false;
|
||
|
|
}
|
||
|
|
unsubscribe() {
|
||
|
|
if (this.closed) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
this.closed = true;
|
||
|
|
const subject = this.subject;
|
||
|
|
const observers = subject.observers;
|
||
|
|
this.subject = null;
|
||
|
|
if (!observers || observers.length === 0 || subject.isStopped || subject.closed) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
const subscriberIndex = observers.indexOf(this.subscriber);
|
||
|
|
if (subscriberIndex !== -1) {
|
||
|
|
observers.splice(subscriberIndex, 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
//# sourceMappingURL=SubjectSubscription.js.map
|