om/node_modules/rxjs/_esm2015/internal/SubjectSubscription.js

import { Subscription } from './Subscription';
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);
        }
    }
}
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