83 lines
3.1 KiB
JavaScript
83 lines
3.1 KiB
JavaScript
|
"use strict";
|
||
|
|
var __extends = (this && this.__extends) || function (d, b) {
|
||
|
|
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
|
||
|
|
function __() { this.constructor = d; }
|
||
|
|
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
|
||
|
|
};
|
||
|
|
var Observable_1 = require('../Observable');
|
||
|
|
/**
|
||
|
|
* We need this JSDoc comment for affecting ESDoc.
|
||
|
|
* @extends {Ignored}
|
||
|
|
* @hide true
|
||
|
|
*/
|
||
|
|
var ErrorObservable = (function (_super) {
|
||
|
|
__extends(ErrorObservable, _super);
|
||
|
|
function ErrorObservable(error, scheduler) {
|
||
|
|
_super.call(this);
|
||
|
|
this.error = error;
|
||
|
|
this.scheduler = 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
|
||
|
|
*/
|
||
|
|
ErrorObservable.create = function (error, scheduler) {
|
||
|
|
return new ErrorObservable(error, scheduler);
|
||
|
|
};
|
||
|
|
ErrorObservable.dispatch = function (arg) {
|
||
|
|
var error = arg.error, subscriber = arg.subscriber;
|
||
|
|
subscriber.error(error);
|
||
|
|
};
|
||
|
|
/** @deprecated internal use only */ ErrorObservable.prototype._subscribe = function (subscriber) {
|
||
|
|
var error = this.error;
|
||
|
|
var scheduler = this.scheduler;
|
||
|
|
subscriber.syncErrorThrowable = true;
|
||
|
|
if (scheduler) {
|
||
|
|
return scheduler.schedule(ErrorObservable.dispatch, 0, {
|
||
|
|
error: error, subscriber: subscriber
|
||
|
|
});
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
subscriber.error(error);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
return ErrorObservable;
|
||
|
|
}(Observable_1.Observable));
|
||
|
|
exports.ErrorObservable = ErrorObservable;
|
||
|
|
//# sourceMappingURL=ErrorObservable.js.map
|