77 lines
2.8 KiB
JavaScript
77 lines
2.8 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 Subscriber_1 = require('../Subscriber');
|
|
/**
|
|
* Converts an Observable of {@link Notification} objects into the emissions
|
|
* that they represent.
|
|
*
|
|
* <span class="informal">Unwraps {@link Notification} objects as actual `next`,
|
|
* `error` and `complete` emissions. The opposite of {@link materialize}.</span>
|
|
*
|
|
* <img src="./img/dematerialize.png" width="100%">
|
|
*
|
|
* `dematerialize` is assumed to operate an Observable that only emits
|
|
* {@link Notification} objects as `next` emissions, and does not emit any
|
|
* `error`. Such Observable is the output of a `materialize` operation. Those
|
|
* notifications are then unwrapped using the metadata they contain, and emitted
|
|
* as `next`, `error`, and `complete` on the output Observable.
|
|
*
|
|
* Use this operator in conjunction with {@link materialize}.
|
|
*
|
|
* @example <caption>Convert an Observable of Notifications to an actual Observable</caption>
|
|
* var notifA = new Rx.Notification('N', 'A');
|
|
* var notifB = new Rx.Notification('N', 'B');
|
|
* var notifE = new Rx.Notification('E', void 0,
|
|
* new TypeError('x.toUpperCase is not a function')
|
|
* );
|
|
* var materialized = Rx.Observable.of(notifA, notifB, notifE);
|
|
* var upperCase = materialized.dematerialize();
|
|
* upperCase.subscribe(x => console.log(x), e => console.error(e));
|
|
*
|
|
* // Results in:
|
|
* // A
|
|
* // B
|
|
* // TypeError: x.toUpperCase is not a function
|
|
*
|
|
* @see {@link Notification}
|
|
* @see {@link materialize}
|
|
*
|
|
* @return {Observable} An Observable that emits items and notifications
|
|
* embedded in Notification objects emitted by the source Observable.
|
|
* @method dematerialize
|
|
* @owner Observable
|
|
*/
|
|
function dematerialize() {
|
|
return function dematerializeOperatorFunction(source) {
|
|
return source.lift(new DeMaterializeOperator());
|
|
};
|
|
}
|
|
exports.dematerialize = dematerialize;
|
|
var DeMaterializeOperator = (function () {
|
|
function DeMaterializeOperator() {
|
|
}
|
|
DeMaterializeOperator.prototype.call = function (subscriber, source) {
|
|
return source.subscribe(new DeMaterializeSubscriber(subscriber));
|
|
};
|
|
return DeMaterializeOperator;
|
|
}());
|
|
/**
|
|
* We need this JSDoc comment for affecting ESDoc.
|
|
* @ignore
|
|
* @extends {Ignored}
|
|
*/
|
|
var DeMaterializeSubscriber = (function (_super) {
|
|
__extends(DeMaterializeSubscriber, _super);
|
|
function DeMaterializeSubscriber(destination) {
|
|
_super.call(this, destination);
|
|
}
|
|
DeMaterializeSubscriber.prototype._next = function (value) {
|
|
value.observe(this.destination);
|
|
};
|
|
return DeMaterializeSubscriber;
|
|
}(Subscriber_1.Subscriber));
|
|
//# sourceMappingURL=dematerialize.js.map
|