@reactivex/rxjs
Version:
Reactive Extensions for modern JavaScript
58 lines • 2.09 kB
JavaScript
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
}
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
import { Subject } from './Subject';
import { Subscription } from './Subscription';
var AsyncSubject = (function (_super) {
__extends(AsyncSubject, _super);
function AsyncSubject() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.value = null;
_this.hasNext = false;
_this.hasCompleted = false;
return _this;
}
AsyncSubject.prototype._subscribe = function (subscriber) {
if (this.hasError) {
subscriber.error(this.thrownError);
return Subscription.EMPTY;
}
else if (this.hasCompleted && this.hasNext) {
subscriber.next(this.value);
subscriber.complete();
return Subscription.EMPTY;
}
return _super.prototype._subscribe.call(this, subscriber);
};
AsyncSubject.prototype.next = function (value) {
if (!this.hasCompleted) {
this.value = value;
this.hasNext = true;
}
};
AsyncSubject.prototype.error = function (error) {
if (!this.hasCompleted) {
_super.prototype.error.call(this, error);
}
};
AsyncSubject.prototype.complete = function () {
this.hasCompleted = true;
if (this.hasNext) {
_super.prototype.next.call(this, this.value);
}
_super.prototype.complete.call(this);
};
return AsyncSubject;
}(Subject));
export { AsyncSubject };
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