121 lines
3.3 KiB
Plaintext
121 lines
3.3 KiB
Plaintext
/** @prettier */
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import { Subscription } from './Subscription';
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import { Subscriber } from './Subscriber';
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import { Observable } from './Observable';
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import { subscribeTo } from './util/subscribeTo';
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interface SimpleOuterSubscriberLike<T> {
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/**
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* A handler for inner next notifications from the inner subscription
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* @param innerValue the value nexted by the inner producer
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*/
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notifyNext(innerValue: T): void;
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/**
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* A handler for inner error notifications from the inner subscription
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* @param err the error from the inner producer
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*/
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notifyError(err: any): void;
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/**
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* A handler for inner complete notifications from the inner subscription.
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*/
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notifyComplete(): void;
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}
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export class SimpleInnerSubscriber<T> extends Subscriber<T> {
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constructor(private parent: SimpleOuterSubscriberLike<any>) {
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super();
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}
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protected _next(value: T): void {
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this.parent.notifyNext(value);
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}
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protected _error(error: any): void {
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this.parent.notifyError(error);
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this.unsubscribe();
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}
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protected _complete(): void {
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this.parent.notifyComplete();
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this.unsubscribe();
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}
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}
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export class ComplexInnerSubscriber<T, R> extends Subscriber<R> {
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constructor(private parent: ComplexOuterSubscriber<T, R>, public outerValue: T, public outerIndex: number) {
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super();
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}
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protected _next(value: R): void {
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this.parent.notifyNext(this.outerValue, value, this.outerIndex, this);
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}
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protected _error(error: any): void {
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this.parent.notifyError(error);
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this.unsubscribe();
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}
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protected _complete(): void {
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this.parent.notifyComplete(this);
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this.unsubscribe();
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}
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}
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export class SimpleOuterSubscriber<T, R> extends Subscriber<T> implements SimpleOuterSubscriberLike<R> {
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notifyNext(innerValue: R): void {
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this.destination.next(innerValue);
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}
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notifyError(err: any): void {
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this.destination.error(err);
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}
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notifyComplete(): void {
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this.destination.complete();
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}
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}
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/**
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* DO NOT USE (formerly "OuterSubscriber")
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* TODO: We want to refactor this and remove it. It is retaining values it shouldn't for long
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* periods of time.
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*/
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export class ComplexOuterSubscriber<T, R> extends Subscriber<T> {
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/**
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* @param _outerValue Used by: bufferToggle, delayWhen, windowToggle
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* @param innerValue Used by: subclass default, combineLatest, race, bufferToggle, windowToggle, withLatestFrom
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* @param _outerIndex Used by: combineLatest, race, withLatestFrom
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* @param _innerSub Used by: delayWhen
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*/
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notifyNext(_outerValue: T, innerValue: R, _outerIndex: number, _innerSub: ComplexInnerSubscriber<T, R>): void {
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this.destination.next(innerValue);
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}
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notifyError(error: any): void {
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this.destination.error(error);
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}
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/**
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* @param _innerSub Used by: race, bufferToggle, delayWhen, windowToggle, windowWhen
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*/
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notifyComplete(_innerSub: ComplexInnerSubscriber<T, R>): void {
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this.destination.complete();
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}
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}
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export function innerSubscribe(result: any, innerSubscriber: Subscriber<any>): Subscription | undefined {
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if (innerSubscriber.closed) {
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return undefined;
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}
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if (result instanceof Observable) {
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return result.subscribe(innerSubscriber);
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}
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let subscription: Subscription;
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try {
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subscription = subscribeTo(result)(innerSubscriber) as Subscription;
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} catch (error) {
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innerSubscriber.error(error);
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}
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return subscription;
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}
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