--- /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 exhaust() {
+ return function (source) { return source.lift(new SwitchFirstOperator()); };
+}
+var SwitchFirstOperator = /*@__PURE__*/ (function () {
+ function SwitchFirstOperator() {
+ }
+ SwitchFirstOperator.prototype.call = function (subscriber, source) {
+ return source.subscribe(new SwitchFirstSubscriber(subscriber));
+ };
+ return SwitchFirstOperator;
+}());
+var SwitchFirstSubscriber = /*@__PURE__*/ (function (_super) {
+ tslib_1.__extends(SwitchFirstSubscriber, _super);
+ function SwitchFirstSubscriber(destination) {
+ var _this = _super.call(this, destination) || this;
+ _this.hasCompleted = false;
+ _this.hasSubscription = false;
+ return _this;
+ }
+ SwitchFirstSubscriber.prototype._next = function (value) {
+ if (!this.hasSubscription) {
+ this.hasSubscription = true;
+ this.add(subscribeToResult(this, value));
+ }
+ };
+ SwitchFirstSubscriber.prototype._complete = function () {
+ this.hasCompleted = true;
+ if (!this.hasSubscription) {
+ this.destination.complete();
+ }
+ };
+ SwitchFirstSubscriber.prototype.notifyComplete = function (innerSub) {
+ this.remove(innerSub);
+ this.hasSubscription = false;
+ if (this.hasCompleted) {
+ this.destination.complete();
+ }
+ };
+ return SwitchFirstSubscriber;
+}(OuterSubscriber));
+//# sourceMappingURL=exhaust.js.map