@reactivex/rxjs/dist/amd/BehaviorSubject.js

Reactive Extensions for modern JavaScript

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 __());
};
define(["require", "exports", './Subject', './util/throwError', './util/ObjectUnsubscribedError'], function (require, exports, Subject_1, throwError_1, ObjectUnsubscribedError_1) {
    "use strict";
    /**
     * @class BehaviorSubject<T>
     */
    var BehaviorSubject = (function (_super) {
        __extends(BehaviorSubject, _super);
        function BehaviorSubject(_value) {
            _super.call(this);
            this._value = _value;
        }
        BehaviorSubject.prototype.getValue = function () {
            if (this.hasError) {
                throwError_1.throwError(this.thrownError);
            }
            else if (this.isUnsubscribed) {
                throwError_1.throwError(new ObjectUnsubscribedError_1.ObjectUnsubscribedError());
            }
            else {
                return this._value;
            }
        };
        Object.defineProperty(BehaviorSubject.prototype, "value", {
            get: function () {
                return this.getValue();
            },
            enumerable: true,
            configurable: true
        });
        BehaviorSubject.prototype._subscribe = function (subscriber) {
            var subscription = _super.prototype._subscribe.call(this, subscriber);
            if (subscription && !subscription.isUnsubscribed) {
                subscriber.next(this._value);
            }
            return subscription;
        };
        BehaviorSubject.prototype.next = function (value) {
            _super.prototype.next.call(this, this._value = value);
        };
        return BehaviorSubject;
    }(Subject_1.Subject));
    exports.BehaviorSubject = BehaviorSubject;
});
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