63 lines
2.4 KiB
JavaScript
63 lines
2.4 KiB
JavaScript
/** PURE_IMPORTS_START .._Observable,.._util_subscribeToResult,.._OuterSubscriber PURE_IMPORTS_END */
|
|
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 __());
|
|
};
|
|
import { Observable } from '../Observable';
|
|
import { subscribeToResult } from '../util/subscribeToResult';
|
|
import { OuterSubscriber } from '../OuterSubscriber';
|
|
/**
|
|
* We need this JSDoc comment for affecting ESDoc.
|
|
* @extends {Ignored}
|
|
* @hide true
|
|
*/
|
|
export var IfObservable = /*@__PURE__*/ (/*@__PURE__*/ function (_super) {
|
|
__extends(IfObservable, _super);
|
|
function IfObservable(condition, thenSource, elseSource) {
|
|
_super.call(this);
|
|
this.condition = condition;
|
|
this.thenSource = thenSource;
|
|
this.elseSource = elseSource;
|
|
}
|
|
IfObservable.create = function (condition, thenSource, elseSource) {
|
|
return new IfObservable(condition, thenSource, elseSource);
|
|
};
|
|
/** @deprecated internal use only */ IfObservable.prototype._subscribe = function (subscriber) {
|
|
var _a = this, condition = _a.condition, thenSource = _a.thenSource, elseSource = _a.elseSource;
|
|
return new IfSubscriber(subscriber, condition, thenSource, elseSource);
|
|
};
|
|
return IfObservable;
|
|
}(Observable));
|
|
var IfSubscriber = /*@__PURE__*/ (/*@__PURE__*/ function (_super) {
|
|
__extends(IfSubscriber, _super);
|
|
function IfSubscriber(destination, condition, thenSource, elseSource) {
|
|
_super.call(this, destination);
|
|
this.condition = condition;
|
|
this.thenSource = thenSource;
|
|
this.elseSource = elseSource;
|
|
this.tryIf();
|
|
}
|
|
IfSubscriber.prototype.tryIf = function () {
|
|
var _a = this, condition = _a.condition, thenSource = _a.thenSource, elseSource = _a.elseSource;
|
|
var result;
|
|
try {
|
|
result = condition();
|
|
var source = result ? thenSource : elseSource;
|
|
if (source) {
|
|
this.add(subscribeToResult(this, source));
|
|
}
|
|
else {
|
|
this._complete();
|
|
}
|
|
}
|
|
catch (err) {
|
|
this._error(err);
|
|
}
|
|
};
|
|
return IfSubscriber;
|
|
}(OuterSubscriber));
|
|
//# sourceMappingURL=IfObservable.js.map
|