|  | "use strict"; | 
|  | 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 __()); | 
|  | }; | 
|  | })(); | 
|  | Object.defineProperty(exports, "__esModule", { value: true }); | 
|  | var Subscription_1 = require("./Subscription"); | 
|  | var SubjectSubscription = (function (_super) { | 
|  | __extends(SubjectSubscription, _super); | 
|  | function SubjectSubscription(subject, subscriber) { | 
|  | var _this = _super.call(this) || this; | 
|  | _this.subject = subject; | 
|  | _this.subscriber = subscriber; | 
|  | _this.closed = false; | 
|  | return _this; | 
|  | } | 
|  | SubjectSubscription.prototype.unsubscribe = function () { | 
|  | if (this.closed) { | 
|  | return; | 
|  | } | 
|  | this.closed = true; | 
|  | var subject = this.subject; | 
|  | var observers = subject.observers; | 
|  | this.subject = null; | 
|  | if (!observers || observers.length === 0 || subject.isStopped || subject.closed) { | 
|  | return; | 
|  | } | 
|  | var subscriberIndex = observers.indexOf(this.subscriber); | 
|  | if (subscriberIndex !== -1) { | 
|  | observers.splice(subscriberIndex, 1); | 
|  | } | 
|  | }; | 
|  | return SubjectSubscription; | 
|  | }(Subscription_1.Subscription)); | 
|  | exports.SubjectSubscription = SubjectSubscription; | 
|  | //# sourceMappingURL=SubjectSubscription.js.map |