62 lines
2.3 KiB
TypeScript
Executable File
62 lines
2.3 KiB
TypeScript
Executable File
import { IScheduler } from '../Scheduler';
|
|
import { Observable } from '../Observable';
|
|
import { TeardownLogic } from '../Subscription';
|
|
import { Subscriber } from '../Subscriber';
|
|
export interface DispatchArg {
|
|
error: any;
|
|
subscriber: any;
|
|
}
|
|
/**
|
|
* We need this JSDoc comment for affecting ESDoc.
|
|
* @extends {Ignored}
|
|
* @hide true
|
|
*/
|
|
export declare class ErrorObservable extends Observable<any> {
|
|
error: any;
|
|
private scheduler;
|
|
/**
|
|
* Creates an Observable that emits no items to the Observer and immediately
|
|
* emits an error notification.
|
|
*
|
|
* <span class="informal">Just emits 'error', and nothing else.
|
|
* </span>
|
|
*
|
|
* <img src="./img/throw.png" width="100%">
|
|
*
|
|
* This static operator is useful for creating a simple Observable that only
|
|
* emits the error notification. It can be used for composing with other
|
|
* Observables, such as in a {@link mergeMap}.
|
|
*
|
|
* @example <caption>Emit the number 7, then emit an error.</caption>
|
|
* var result = Rx.Observable.throw(new Error('oops!')).startWith(7);
|
|
* result.subscribe(x => console.log(x), e => console.error(e));
|
|
*
|
|
* @example <caption>Map and flatten numbers to the sequence 'a', 'b', 'c', but throw an error for 13</caption>
|
|
* var interval = Rx.Observable.interval(1000);
|
|
* var result = interval.mergeMap(x =>
|
|
* x === 13 ?
|
|
* Rx.Observable.throw('Thirteens are bad') :
|
|
* Rx.Observable.of('a', 'b', 'c')
|
|
* );
|
|
* result.subscribe(x => console.log(x), e => console.error(e));
|
|
*
|
|
* @see {@link create}
|
|
* @see {@link empty}
|
|
* @see {@link never}
|
|
* @see {@link of}
|
|
*
|
|
* @param {any} error The particular Error to pass to the error notification.
|
|
* @param {Scheduler} [scheduler] A {@link IScheduler} to use for scheduling
|
|
* the emission of the error notification.
|
|
* @return {Observable} An error Observable: emits only the error notification
|
|
* using the given error argument.
|
|
* @static true
|
|
* @name throw
|
|
* @owner Observable
|
|
*/
|
|
static create(error: any, scheduler?: IScheduler): ErrorObservable;
|
|
static dispatch(arg: DispatchArg): void;
|
|
constructor(error: any, scheduler?: IScheduler);
|
|
/** @deprecated internal use only */ _subscribe(subscriber: Subscriber<any>): TeardownLogic;
|
|
}
|