--- /dev/null
+/** PURE_IMPORTS_START tslib,_util_isScheduler,_util_isArray,_OuterSubscriber,_util_subscribeToResult,_fromArray PURE_IMPORTS_END */
+import * as tslib_1 from "tslib";
+import { isScheduler } from '../util/isScheduler';
+import { isArray } from '../util/isArray';
+import { OuterSubscriber } from '../OuterSubscriber';
+import { subscribeToResult } from '../util/subscribeToResult';
+import { fromArray } from './fromArray';
+var NONE = {};
+export function combineLatest() {
+ var observables = [];
+ for (var _i = 0; _i < arguments.length; _i++) {
+ observables[_i] = arguments[_i];
+ }
+ var resultSelector = null;
+ var scheduler = null;
+ if (isScheduler(observables[observables.length - 1])) {
+ scheduler = observables.pop();
+ }
+ if (typeof observables[observables.length - 1] === 'function') {
+ resultSelector = observables.pop();
+ }
+ if (observables.length === 1 && isArray(observables[0])) {
+ observables = observables[0];
+ }
+ return fromArray(observables, scheduler).lift(new CombineLatestOperator(resultSelector));
+}
+var CombineLatestOperator = /*@__PURE__*/ (function () {
+ function CombineLatestOperator(resultSelector) {
+ this.resultSelector = resultSelector;
+ }
+ CombineLatestOperator.prototype.call = function (subscriber, source) {
+ return source.subscribe(new CombineLatestSubscriber(subscriber, this.resultSelector));
+ };
+ return CombineLatestOperator;
+}());
+export { CombineLatestOperator };
+var CombineLatestSubscriber = /*@__PURE__*/ (function (_super) {
+ tslib_1.__extends(CombineLatestSubscriber, _super);
+ function CombineLatestSubscriber(destination, resultSelector) {
+ var _this = _super.call(this, destination) || this;
+ _this.resultSelector = resultSelector;
+ _this.active = 0;
+ _this.values = [];
+ _this.observables = [];
+ return _this;
+ }
+ CombineLatestSubscriber.prototype._next = function (observable) {
+ this.values.push(NONE);
+ this.observables.push(observable);
+ };
+ CombineLatestSubscriber.prototype._complete = function () {
+ var observables = this.observables;
+ var len = observables.length;
+ if (len === 0) {
+ this.destination.complete();
+ }
+ else {
+ this.active = len;
+ this.toRespond = len;
+ for (var i = 0; i < len; i++) {
+ var observable = observables[i];
+ this.add(subscribeToResult(this, observable, observable, i));
+ }
+ }
+ };
+ CombineLatestSubscriber.prototype.notifyComplete = function (unused) {
+ if ((this.active -= 1) === 0) {
+ this.destination.complete();
+ }
+ };
+ CombineLatestSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
+ var values = this.values;
+ var oldVal = values[outerIndex];
+ var toRespond = !this.toRespond
+ ? 0
+ : oldVal === NONE ? --this.toRespond : this.toRespond;
+ values[outerIndex] = innerValue;
+ if (toRespond === 0) {
+ if (this.resultSelector) {
+ this._tryResultSelector(values);
+ }
+ else {
+ this.destination.next(values.slice());
+ }
+ }
+ };
+ CombineLatestSubscriber.prototype._tryResultSelector = function (values) {
+ var result;
+ try {
+ result = this.resultSelector.apply(this, values);
+ }
+ catch (err) {
+ this.destination.error(err);
+ return;
+ }
+ this.destination.next(result);
+ };
+ return CombineLatestSubscriber;
+}(OuterSubscriber));
+export { CombineLatestSubscriber };
+//# sourceMappingURL=combineLatest.js.map