source: trip-planner-front/node_modules/rxjs/_esm5/internal/observable/combineLatest.js

Last change on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1/** PURE_IMPORTS_START tslib,_util_isScheduler,_util_isArray,_OuterSubscriber,_util_subscribeToResult,_fromArray PURE_IMPORTS_END */
2import * as tslib_1 from "tslib";
3import { isScheduler } from '../util/isScheduler';
4import { isArray } from '../util/isArray';
5import { OuterSubscriber } from '../OuterSubscriber';
6import { subscribeToResult } from '../util/subscribeToResult';
7import { fromArray } from './fromArray';
8var NONE = {};
9export function combineLatest() {
10 var observables = [];
11 for (var _i = 0; _i < arguments.length; _i++) {
12 observables[_i] = arguments[_i];
13 }
14 var resultSelector = undefined;
15 var scheduler = undefined;
16 if (isScheduler(observables[observables.length - 1])) {
17 scheduler = observables.pop();
18 }
19 if (typeof observables[observables.length - 1] === 'function') {
20 resultSelector = observables.pop();
21 }
22 if (observables.length === 1 && isArray(observables[0])) {
23 observables = observables[0];
24 }
25 return fromArray(observables, scheduler).lift(new CombineLatestOperator(resultSelector));
26}
27var CombineLatestOperator = /*@__PURE__*/ (function () {
28 function CombineLatestOperator(resultSelector) {
29 this.resultSelector = resultSelector;
30 }
31 CombineLatestOperator.prototype.call = function (subscriber, source) {
32 return source.subscribe(new CombineLatestSubscriber(subscriber, this.resultSelector));
33 };
34 return CombineLatestOperator;
35}());
36export { CombineLatestOperator };
37var CombineLatestSubscriber = /*@__PURE__*/ (function (_super) {
38 tslib_1.__extends(CombineLatestSubscriber, _super);
39 function CombineLatestSubscriber(destination, resultSelector) {
40 var _this = _super.call(this, destination) || this;
41 _this.resultSelector = resultSelector;
42 _this.active = 0;
43 _this.values = [];
44 _this.observables = [];
45 return _this;
46 }
47 CombineLatestSubscriber.prototype._next = function (observable) {
48 this.values.push(NONE);
49 this.observables.push(observable);
50 };
51 CombineLatestSubscriber.prototype._complete = function () {
52 var observables = this.observables;
53 var len = observables.length;
54 if (len === 0) {
55 this.destination.complete();
56 }
57 else {
58 this.active = len;
59 this.toRespond = len;
60 for (var i = 0; i < len; i++) {
61 var observable = observables[i];
62 this.add(subscribeToResult(this, observable, undefined, i));
63 }
64 }
65 };
66 CombineLatestSubscriber.prototype.notifyComplete = function (unused) {
67 if ((this.active -= 1) === 0) {
68 this.destination.complete();
69 }
70 };
71 CombineLatestSubscriber.prototype.notifyNext = function (_outerValue, innerValue, outerIndex) {
72 var values = this.values;
73 var oldVal = values[outerIndex];
74 var toRespond = !this.toRespond
75 ? 0
76 : oldVal === NONE ? --this.toRespond : this.toRespond;
77 values[outerIndex] = innerValue;
78 if (toRespond === 0) {
79 if (this.resultSelector) {
80 this._tryResultSelector(values);
81 }
82 else {
83 this.destination.next(values.slice());
84 }
85 }
86 };
87 CombineLatestSubscriber.prototype._tryResultSelector = function (values) {
88 var result;
89 try {
90 result = this.resultSelector.apply(this, values);
91 }
92 catch (err) {
93 this.destination.error(err);
94 return;
95 }
96 this.destination.next(result);
97 };
98 return CombineLatestSubscriber;
99}(OuterSubscriber));
100export { CombineLatestSubscriber };
101//# sourceMappingURL=combineLatest.js.map
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