om/node_modules/rxjs/internal/observable/forkJoin.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 Observable_1 = require("../Observable");
var isArray_1 = require("../util/isArray");
var empty_1 = require("./empty");
var subscribeToResult_1 = require("../util/subscribeToResult");
var OuterSubscriber_1 = require("../OuterSubscriber");
var map_1 = require("../operators/map");
function forkJoin() {
    var sources = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        sources[_i] = arguments[_i];
    }
    var resultSelector;
    if (typeof sources[sources.length - 1] === 'function') {
        resultSelector = sources.pop();
    }
    if (sources.length === 1 && isArray_1.isArray(sources[0])) {
        sources = sources[0];
    }
    if (sources.length === 0) {
        return empty_1.EMPTY;
    }
    if (resultSelector) {
        return forkJoin(sources).pipe(map_1.map(function (args) { return resultSelector.apply(void 0, args); }));
    }
    return new Observable_1.Observable(function (subscriber) {
        return new ForkJoinSubscriber(subscriber, sources);
    });
}
exports.forkJoin = forkJoin;
var ForkJoinSubscriber = (function (_super) {
    __extends(ForkJoinSubscriber, _super);
    function ForkJoinSubscriber(destination, sources) {
        var _this = _super.call(this, destination) || this;
        _this.sources = sources;
        _this.completed = 0;
        _this.haveValues = 0;
        var len = sources.length;
        _this.values = new Array(len);
        for (var i = 0; i < len; i++) {
            var source = sources[i];
            var innerSubscription = subscribeToResult_1.subscribeToResult(_this, source, null, i);
            if (innerSubscription) {
                _this.add(innerSubscription);
            }
        }
        return _this;
    }
    ForkJoinSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
        this.values[outerIndex] = innerValue;
        if (!innerSub._hasValue) {
            innerSub._hasValue = true;
            this.haveValues++;
        }
    };
    ForkJoinSubscriber.prototype.notifyComplete = function (innerSub) {
        var _a = this, destination = _a.destination, haveValues = _a.haveValues, values = _a.values;
        var len = values.length;
        if (!innerSub._hasValue) {
            destination.complete();
            return;
        }
        this.completed++;
        if (this.completed !== len) {
            return;
        }
        if (haveValues === len) {
            destination.next(values);
        }
        destination.complete();
    };
    return ForkJoinSubscriber;
}(OuterSubscriber_1.OuterSubscriber));
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