50 lines
1.7 KiB
JavaScript
50 lines
1.7 KiB
JavaScript
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"use strict";
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var __extends = (this && this.__extends) || function (d, b) {
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for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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var Subject_1 = require('../Subject');
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var AsyncSubject = (function (_super) {
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__extends(AsyncSubject, _super);
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function AsyncSubject() {
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_super.apply(this, arguments);
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this.value = null;
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this.hasNext = false;
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}
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AsyncSubject.prototype._subscribe = function (subscriber) {
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if (this.hasCompleted && this.hasNext) {
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subscriber.next(this.value);
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}
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return _super.prototype._subscribe.call(this, subscriber);
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};
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AsyncSubject.prototype._next = function (value) {
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this.value = value;
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this.hasNext = true;
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};
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AsyncSubject.prototype._complete = function () {
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var index = -1;
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var observers = this.observers;
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var len = observers.length;
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// optimization to block our SubjectSubscriptions from
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// splicing themselves out of the observers list one by one.
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this.isUnsubscribed = true;
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if (this.hasNext) {
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while (++index < len) {
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var o = observers[index];
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o.next(this.value);
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o.complete();
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}
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}
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else {
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while (++index < len) {
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observers[index].complete();
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}
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}
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this.isUnsubscribed = false;
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this.unsubscribe();
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};
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return AsyncSubject;
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}(Subject_1.Subject));
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exports.AsyncSubject = AsyncSubject;
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//# sourceMappingURL=AsyncSubject.js.map
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