[6a3a178] | 1 | /** PURE_IMPORTS_START tslib,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */
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| 2 | import * as tslib_1 from "tslib";
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| 3 | import { OuterSubscriber } from '../OuterSubscriber';
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| 4 | import { subscribeToResult } from '../util/subscribeToResult';
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| 5 | export function withLatestFrom() {
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| 6 | var args = [];
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| 7 | for (var _i = 0; _i < arguments.length; _i++) {
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| 8 | args[_i] = arguments[_i];
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| 9 | }
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| 10 | return function (source) {
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| 11 | var project;
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| 12 | if (typeof args[args.length - 1] === 'function') {
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| 13 | project = args.pop();
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| 14 | }
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| 15 | var observables = args;
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| 16 | return source.lift(new WithLatestFromOperator(observables, project));
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| 17 | };
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| 18 | }
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| 19 | var WithLatestFromOperator = /*@__PURE__*/ (function () {
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| 20 | function WithLatestFromOperator(observables, project) {
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| 21 | this.observables = observables;
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| 22 | this.project = project;
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| 23 | }
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| 24 | WithLatestFromOperator.prototype.call = function (subscriber, source) {
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| 25 | return source.subscribe(new WithLatestFromSubscriber(subscriber, this.observables, this.project));
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| 26 | };
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| 27 | return WithLatestFromOperator;
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| 28 | }());
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| 29 | var WithLatestFromSubscriber = /*@__PURE__*/ (function (_super) {
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| 30 | tslib_1.__extends(WithLatestFromSubscriber, _super);
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| 31 | function WithLatestFromSubscriber(destination, observables, project) {
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| 32 | var _this = _super.call(this, destination) || this;
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| 33 | _this.observables = observables;
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| 34 | _this.project = project;
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| 35 | _this.toRespond = [];
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| 36 | var len = observables.length;
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| 37 | _this.values = new Array(len);
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| 38 | for (var i = 0; i < len; i++) {
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| 39 | _this.toRespond.push(i);
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| 40 | }
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| 41 | for (var i = 0; i < len; i++) {
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| 42 | var observable = observables[i];
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| 43 | _this.add(subscribeToResult(_this, observable, undefined, i));
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| 44 | }
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| 45 | return _this;
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| 46 | }
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| 47 | WithLatestFromSubscriber.prototype.notifyNext = function (_outerValue, innerValue, outerIndex) {
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| 48 | this.values[outerIndex] = innerValue;
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| 49 | var toRespond = this.toRespond;
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| 50 | if (toRespond.length > 0) {
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| 51 | var found = toRespond.indexOf(outerIndex);
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| 52 | if (found !== -1) {
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| 53 | toRespond.splice(found, 1);
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| 54 | }
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| 55 | }
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| 56 | };
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| 57 | WithLatestFromSubscriber.prototype.notifyComplete = function () {
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| 58 | };
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| 59 | WithLatestFromSubscriber.prototype._next = function (value) {
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| 60 | if (this.toRespond.length === 0) {
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| 61 | var args = [value].concat(this.values);
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| 62 | if (this.project) {
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| 63 | this._tryProject(args);
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| 64 | }
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| 65 | else {
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| 66 | this.destination.next(args);
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| 67 | }
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| 68 | }
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| 69 | };
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| 70 | WithLatestFromSubscriber.prototype._tryProject = function (args) {
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| 71 | var result;
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| 72 | try {
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| 73 | result = this.project.apply(this, args);
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| 74 | }
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| 75 | catch (err) {
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| 76 | this.destination.error(err);
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| 77 | return;
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| 78 | }
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| 79 | this.destination.next(result);
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| 80 | };
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| 81 | return WithLatestFromSubscriber;
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| 82 | }(OuterSubscriber));
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| 83 | //# sourceMappingURL=withLatestFrom.js.map
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