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							- import { Observable } from './Observable';
 
- import { Subscriber } from './Subscriber';
 
- import { Subscription } from './Subscription';
 
- import { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';
 
- import { SubjectSubscription } from './SubjectSubscription';
 
- import { rxSubscriber as rxSubscriberSymbol } from '../internal/symbol/rxSubscriber';
 
- export class SubjectSubscriber extends Subscriber {
 
-     constructor(destination) {
 
-         super(destination);
 
-         this.destination = destination;
 
-     }
 
- }
 
- export class Subject extends Observable {
 
-     constructor() {
 
-         super();
 
-         this.observers = [];
 
-         this.closed = false;
 
-         this.isStopped = false;
 
-         this.hasError = false;
 
-         this.thrownError = null;
 
-     }
 
-     [rxSubscriberSymbol]() {
 
-         return new SubjectSubscriber(this);
 
-     }
 
-     lift(operator) {
 
-         const subject = new AnonymousSubject(this, this);
 
-         subject.operator = operator;
 
-         return subject;
 
-     }
 
-     next(value) {
 
-         if (this.closed) {
 
-             throw new ObjectUnsubscribedError();
 
-         }
 
-         if (!this.isStopped) {
 
-             const { observers } = this;
 
-             const len = observers.length;
 
-             const copy = observers.slice();
 
-             for (let i = 0; i < len; i++) {
 
-                 copy[i].next(value);
 
-             }
 
-         }
 
-     }
 
-     error(err) {
 
-         if (this.closed) {
 
-             throw new ObjectUnsubscribedError();
 
-         }
 
-         this.hasError = true;
 
-         this.thrownError = err;
 
-         this.isStopped = true;
 
-         const { observers } = this;
 
-         const len = observers.length;
 
-         const copy = observers.slice();
 
-         for (let i = 0; i < len; i++) {
 
-             copy[i].error(err);
 
-         }
 
-         this.observers.length = 0;
 
-     }
 
-     complete() {
 
-         if (this.closed) {
 
-             throw new ObjectUnsubscribedError();
 
-         }
 
-         this.isStopped = true;
 
-         const { observers } = this;
 
-         const len = observers.length;
 
-         const copy = observers.slice();
 
-         for (let i = 0; i < len; i++) {
 
-             copy[i].complete();
 
-         }
 
-         this.observers.length = 0;
 
-     }
 
-     unsubscribe() {
 
-         this.isStopped = true;
 
-         this.closed = true;
 
-         this.observers = null;
 
-     }
 
-     _trySubscribe(subscriber) {
 
-         if (this.closed) {
 
-             throw new ObjectUnsubscribedError();
 
-         }
 
-         else {
 
-             return super._trySubscribe(subscriber);
 
-         }
 
-     }
 
-     _subscribe(subscriber) {
 
-         if (this.closed) {
 
-             throw new ObjectUnsubscribedError();
 
-         }
 
-         else if (this.hasError) {
 
-             subscriber.error(this.thrownError);
 
-             return Subscription.EMPTY;
 
-         }
 
-         else if (this.isStopped) {
 
-             subscriber.complete();
 
-             return Subscription.EMPTY;
 
-         }
 
-         else {
 
-             this.observers.push(subscriber);
 
-             return new SubjectSubscription(this, subscriber);
 
-         }
 
-     }
 
-     asObservable() {
 
-         const observable = new Observable();
 
-         observable.source = this;
 
-         return observable;
 
-     }
 
- }
 
- Subject.create = (destination, source) => {
 
-     return new AnonymousSubject(destination, source);
 
- };
 
- export class AnonymousSubject extends Subject {
 
-     constructor(destination, source) {
 
-         super();
 
-         this.destination = destination;
 
-         this.source = source;
 
-     }
 
-     next(value) {
 
-         const { destination } = this;
 
-         if (destination && destination.next) {
 
-             destination.next(value);
 
-         }
 
-     }
 
-     error(err) {
 
-         const { destination } = this;
 
-         if (destination && destination.error) {
 
-             this.destination.error(err);
 
-         }
 
-     }
 
-     complete() {
 
-         const { destination } = this;
 
-         if (destination && destination.complete) {
 
-             this.destination.complete();
 
-         }
 
-     }
 
-     _subscribe(subscriber) {
 
-         const { source } = this;
 
-         if (source) {
 
-             return this.source.subscribe(subscriber);
 
-         }
 
-         else {
 
-             return Subscription.EMPTY;
 
-         }
 
-     }
 
- }
 
- //# sourceMappingURL=Subject.js.map
 
 
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