1 /** PURE_IMPORTS_START tslib,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */
2 import * as tslib_1 from "tslib";
3 import { OuterSubscriber } from '../OuterSubscriber';
4 import { subscribeToResult } from '../util/subscribeToResult';
5 export function exhaust() {
6 return function (source) { return source.lift(new SwitchFirstOperator()); };
8 var SwitchFirstOperator = /*@__PURE__*/ (function () {
9 function SwitchFirstOperator() {
11 SwitchFirstOperator.prototype.call = function (subscriber, source) {
12 return source.subscribe(new SwitchFirstSubscriber(subscriber));
14 return SwitchFirstOperator;
16 var SwitchFirstSubscriber = /*@__PURE__*/ (function (_super) {
17 tslib_1.__extends(SwitchFirstSubscriber, _super);
18 function SwitchFirstSubscriber(destination) {
19 var _this = _super.call(this, destination) || this;
20 _this.hasCompleted = false;
21 _this.hasSubscription = false;
24 SwitchFirstSubscriber.prototype._next = function (value) {
25 if (!this.hasSubscription) {
26 this.hasSubscription = true;
27 this.add(subscribeToResult(this, value));
30 SwitchFirstSubscriber.prototype._complete = function () {
31 this.hasCompleted = true;
32 if (!this.hasSubscription) {
33 this.destination.complete();
36 SwitchFirstSubscriber.prototype.notifyComplete = function (innerSub) {
37 this.remove(innerSub);
38 this.hasSubscription = false;
39 if (this.hasCompleted) {
40 this.destination.complete();
43 return SwitchFirstSubscriber;
45 //# sourceMappingURL=exhaust.js.map