ducha-qianduan/node_modules/rxjs/internal/operators/isEmpty.js

"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 Subscriber_1 = require("../Subscriber");
function isEmpty() {
    return function (source) { return source.lift(new IsEmptyOperator()); };
}
exports.isEmpty = isEmpty;
var IsEmptyOperator = (function () {
    function IsEmptyOperator() {
    }
    IsEmptyOperator.prototype.call = function (observer, source) {
        return source.subscribe(new IsEmptySubscriber(observer));
    };
    return IsEmptyOperator;
}());
var IsEmptySubscriber = (function (_super) {
    __extends(IsEmptySubscriber, _super);
    function IsEmptySubscriber(destination) {
        return _super.call(this, destination) || this;
    }
    IsEmptySubscriber.prototype.notifyComplete = function (isEmpty) {
        var destination = this.destination;
        destination.next(isEmpty);
        destination.complete();
    };
    IsEmptySubscriber.prototype._next = function (value) {
        this.notifyComplete(false);
    };
    IsEmptySubscriber.prototype._complete = function () {
        this.notifyComplete(true);
    };
    return IsEmptySubscriber;
}(Subscriber_1.Subscriber));
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