var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) Eif (b.hasOwnProperty(p)) d[p] = b[p];
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var Subscriber_1 = require('../Subscriber');
function defaultIfEmpty(defaultValue) {
if (defaultValue === void 0) { defaultValue = null; }
return this.lift(new DefaultIfEmptyOperator(defaultValue));
}
exports.defaultIfEmpty = defaultIfEmpty;
var DefaultIfEmptyOperator = (function () {
function DefaultIfEmptyOperator(defaultValue) {
this.defaultValue = defaultValue;
}
DefaultIfEmptyOperator.prototype.call = function (subscriber) {
return new DefaultIfEmptySubscriber(subscriber, this.defaultValue);
};
return DefaultIfEmptyOperator;
})();
var DefaultIfEmptySubscriber = (function (_super) {
__extends(DefaultIfEmptySubscriber, _super);
function DefaultIfEmptySubscriber(destination, defaultValue) {
_super.call(this, destination);
this.defaultValue = defaultValue;
this.isEmpty = true;
}
DefaultIfEmptySubscriber.prototype._next = function (value) {
this.isEmpty = false;
this.destination.next(value);
};
DefaultIfEmptySubscriber.prototype._complete = function () {
if (this.isEmpty) {
this.destination.next(this.defaultValue);
}
this.destination.complete();
};
return DefaultIfEmptySubscriber;
})(Subscriber_1.Subscriber);
//# sourceMappingURL=defaultIfEmpty.js.map |