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import { Operator } from './Operator';
import { Observable } from './Observable';
import { Subscriber } from './Subscriber';
import { Subscription } from './Subscription';
import { Observer, SubscriptionLike, TeardownLogic } from './types';
/**
* @class SubjectSubscriber<T>
*/
export declare class SubjectSubscriber<T> extends Subscriber<T> {
protected destination: Subject<T>;
constructor(destination: Subject<T>);
}
/**
* A Subject is a special type of Observable that allows values to be
* multicasted to many Observables. Subjects are like EventEmitters.
*
* Every Subject is an Observable and an Observer. You can subscribe to a
* Subject, and you can call next to feed values as well as error and complete.
*
* @class Subject<T>
*/
export declare class Subject<T> extends Observable<T> implements SubscriptionLike {
observers: Observer<T>[];
closed: boolean;
isStopped: boolean;
hasError: boolean;
thrownError: any;
constructor();
/**@nocollapse */
static create: Function;
lift<R>(operator: Operator<T, R>): Observable<R>;
next(value?: T): void;
error(err: any): void;
complete(): void;
unsubscribe(): void;
/** @deprecated This is an internal implementation detail, do not use. */
_trySubscribe(subscriber: Subscriber<T>): TeardownLogic;
/** @deprecated This is an internal implementation detail, do not use. */
_subscribe(subscriber: Subscriber<T>): Subscription;
/**
* Creates a new Observable with this Subject as the source. You can do this
* to create customize Observer-side logic of the Subject and conceal it from
* code that uses the Observable.
* @return {Observable} Observable that the Subject casts to
*/
asObservable(): Observable<T>;
}
/**
* @class AnonymousSubject<T>
*/
export declare class AnonymousSubject<T> extends Subject<T> {
protected destination?: Observer<T>;
constructor(destination?: Observer<T>, source?: Observable<T>);
next(value: T): void;
error(err: any): void;
complete(): void;
/** @deprecated This is an internal implementation detail, do not use. */
_subscribe(subscriber: Subscriber<T>): Subscription;
}
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