fineui-custum-tree-demo/node_modules/rxjs/internal/operators/throwIfEmpty.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 EmptyError_1 = require("../util/EmptyError");
var Subscriber_1 = require("../Subscriber");
function throwIfEmpty(errorFactory) {
    if (errorFactory === void 0) { errorFactory = defaultErrorFactory; }
    return function (source) {
        return source.lift(new ThrowIfEmptyOperator(errorFactory));
    };
}
exports.throwIfEmpty = throwIfEmpty;
var ThrowIfEmptyOperator = (function () {
    function ThrowIfEmptyOperator(errorFactory) {
        this.errorFactory = errorFactory;
    }
    ThrowIfEmptyOperator.prototype.call = function (subscriber, source) {
        return source.subscribe(new ThrowIfEmptySubscriber(subscriber, this.errorFactory));
    };
    return ThrowIfEmptyOperator;
}());
var ThrowIfEmptySubscriber = (function (_super) {
    __extends(ThrowIfEmptySubscriber, _super);
    function ThrowIfEmptySubscriber(destination, errorFactory) {
        var _this = _super.call(this, destination) || this;
        _this.errorFactory = errorFactory;
        _this.hasValue = false;
        return _this;
    }
    ThrowIfEmptySubscriber.prototype._next = function (value) {
        this.hasValue = true;
        this.destination.next(value);
    };
    ThrowIfEmptySubscriber.prototype._complete = function () {
        if (!this.hasValue) {
            var err = void 0;
            try {
                err = this.errorFactory();
            }
            catch (e) {
                err = e;
            }
            this.destination.error(err);
        }
        else {
            return this.destination.complete();
        }
    };
    return ThrowIfEmptySubscriber;
}(Subscriber_1.Subscriber));
function defaultErrorFactory() {
    return new EmptyError_1.EmptyError();
}
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