40 lines
2.1 KiB
TypeScript
40 lines
2.1 KiB
TypeScript
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import { Observable } from '../Observable';
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import { Scheduler } from '../Scheduler';
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import { Operator } from '../Operator';
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import { Subscriber } from '../Subscriber';
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import { Subscription } from '../Subscription';
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import { OuterSubscriber } from '../OuterSubscriber';
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import { InnerSubscriber } from '../InnerSubscriber';
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/**
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* Returns an Observable where for each item in the source Observable, the supplied function is applied to each item,
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* resulting in a new value to then be applied again with the function.
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* @param {function} project the function for projecting the next emitted item of the Observable.
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* @param {number} [concurrent] the max number of observables that can be created concurrently. defaults to infinity.
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* @param {Scheduler} [scheduler] The Scheduler to use for managing the expansions.
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* @returns {Observable} an Observable containing the expansions of the source Observable.
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*/
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export declare function expand<T, R>(project: (value: T, index: number) => Observable<R>, concurrent?: number, scheduler?: Scheduler): Observable<R>;
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export declare class ExpandOperator<T, R> implements Operator<T, R> {
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private project;
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private concurrent;
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private scheduler;
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constructor(project: (value: T, index: number) => Observable<R>, concurrent: number, scheduler: Scheduler);
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call(subscriber: Subscriber<R>): Subscriber<T>;
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}
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export declare class ExpandSubscriber<T, R> extends OuterSubscriber<T, R> {
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private project;
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private concurrent;
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private scheduler;
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private index;
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private active;
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private hasCompleted;
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private buffer;
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constructor(destination: Subscriber<R>, project: (value: T, index: number) => Observable<R>, concurrent: number, scheduler: Scheduler);
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private static dispatch({subscriber, result, value, index});
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protected _next(value: any): void;
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private subscribeToProjection(result, value, index);
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protected _complete(): void;
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notifyNext(outerValue: T, innerValue: R, outerIndex: number, innerIndex: number, innerSub: InnerSubscriber<T, R>): void;
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notifyComplete(innerSub: Subscription): void;
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}
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