--- /dev/null
+/** PURE_IMPORTS_START tslib,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */
+import * as tslib_1 from "tslib";
+import { OuterSubscriber } from '../OuterSubscriber';
+import { subscribeToResult } from '../util/subscribeToResult';
+export function withLatestFrom() {
+ var args = [];
+ for (var _i = 0; _i < arguments.length; _i++) {
+ args[_i] = arguments[_i];
+ }
+ return function (source) {
+ var project;
+ if (typeof args[args.length - 1] === 'function') {
+ project = args.pop();
+ }
+ var observables = args;
+ return source.lift(new WithLatestFromOperator(observables, project));
+ };
+}
+var WithLatestFromOperator = /*@__PURE__*/ (function () {
+ function WithLatestFromOperator(observables, project) {
+ this.observables = observables;
+ this.project = project;
+ }
+ WithLatestFromOperator.prototype.call = function (subscriber, source) {
+ return source.subscribe(new WithLatestFromSubscriber(subscriber, this.observables, this.project));
+ };
+ return WithLatestFromOperator;
+}());
+var WithLatestFromSubscriber = /*@__PURE__*/ (function (_super) {
+ tslib_1.__extends(WithLatestFromSubscriber, _super);
+ function WithLatestFromSubscriber(destination, observables, project) {
+ var _this = _super.call(this, destination) || this;
+ _this.observables = observables;
+ _this.project = project;
+ _this.toRespond = [];
+ var len = observables.length;
+ _this.values = new Array(len);
+ for (var i = 0; i < len; i++) {
+ _this.toRespond.push(i);
+ }
+ for (var i = 0; i < len; i++) {
+ var observable = observables[i];
+ _this.add(subscribeToResult(_this, observable, observable, i));
+ }
+ return _this;
+ }
+ WithLatestFromSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
+ this.values[outerIndex] = innerValue;
+ var toRespond = this.toRespond;
+ if (toRespond.length > 0) {
+ var found = toRespond.indexOf(outerIndex);
+ if (found !== -1) {
+ toRespond.splice(found, 1);
+ }
+ }
+ };
+ WithLatestFromSubscriber.prototype.notifyComplete = function () {
+ };
+ WithLatestFromSubscriber.prototype._next = function (value) {
+ if (this.toRespond.length === 0) {
+ var args = [value].concat(this.values);
+ if (this.project) {
+ this._tryProject(args);
+ }
+ else {
+ this.destination.next(args);
+ }
+ }
+ };
+ WithLatestFromSubscriber.prototype._tryProject = function (args) {
+ var result;
+ try {
+ result = this.project.apply(this, args);
+ }
+ catch (err) {
+ this.destination.error(err);
+ return;
+ }
+ this.destination.next(result);
+ };
+ return WithLatestFromSubscriber;
+}(OuterSubscriber));
+//# sourceMappingURL=withLatestFrom.js.map