| /** PURE_IMPORTS_START tslib,_map,_observable_from,_innerSubscribe PURE_IMPORTS_END */ | 
| import * as tslib_1 from "tslib"; | 
| import { map } from './map'; | 
| import { from } from '../observable/from'; | 
| import { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe'; | 
| export function exhaustMap(project, resultSelector) { | 
|     if (resultSelector) { | 
|         return function (source) { return source.pipe(exhaustMap(function (a, i) { return from(project(a, i)).pipe(map(function (b, ii) { return resultSelector(a, b, i, ii); })); })); }; | 
|     } | 
|     return function (source) { | 
|         return source.lift(new ExhaustMapOperator(project)); | 
|     }; | 
| } | 
| var ExhaustMapOperator = /*@__PURE__*/ (function () { | 
|     function ExhaustMapOperator(project) { | 
|         this.project = project; | 
|     } | 
|     ExhaustMapOperator.prototype.call = function (subscriber, source) { | 
|         return source.subscribe(new ExhaustMapSubscriber(subscriber, this.project)); | 
|     }; | 
|     return ExhaustMapOperator; | 
| }()); | 
| var ExhaustMapSubscriber = /*@__PURE__*/ (function (_super) { | 
|     tslib_1.__extends(ExhaustMapSubscriber, _super); | 
|     function ExhaustMapSubscriber(destination, project) { | 
|         var _this = _super.call(this, destination) || this; | 
|         _this.project = project; | 
|         _this.hasSubscription = false; | 
|         _this.hasCompleted = false; | 
|         _this.index = 0; | 
|         return _this; | 
|     } | 
|     ExhaustMapSubscriber.prototype._next = function (value) { | 
|         if (!this.hasSubscription) { | 
|             this.tryNext(value); | 
|         } | 
|     }; | 
|     ExhaustMapSubscriber.prototype.tryNext = function (value) { | 
|         var result; | 
|         var index = this.index++; | 
|         try { | 
|             result = this.project(value, index); | 
|         } | 
|         catch (err) { | 
|             this.destination.error(err); | 
|             return; | 
|         } | 
|         this.hasSubscription = true; | 
|         this._innerSub(result); | 
|     }; | 
|     ExhaustMapSubscriber.prototype._innerSub = function (result) { | 
|         var innerSubscriber = new SimpleInnerSubscriber(this); | 
|         var destination = this.destination; | 
|         destination.add(innerSubscriber); | 
|         var innerSubscription = innerSubscribe(result, innerSubscriber); | 
|         if (innerSubscription !== innerSubscriber) { | 
|             destination.add(innerSubscription); | 
|         } | 
|     }; | 
|     ExhaustMapSubscriber.prototype._complete = function () { | 
|         this.hasCompleted = true; | 
|         if (!this.hasSubscription) { | 
|             this.destination.complete(); | 
|         } | 
|         this.unsubscribe(); | 
|     }; | 
|     ExhaustMapSubscriber.prototype.notifyNext = function (innerValue) { | 
|         this.destination.next(innerValue); | 
|     }; | 
|     ExhaustMapSubscriber.prototype.notifyError = function (err) { | 
|         this.destination.error(err); | 
|     }; | 
|     ExhaustMapSubscriber.prototype.notifyComplete = function () { | 
|         this.hasSubscription = false; | 
|         if (this.hasCompleted) { | 
|             this.destination.complete(); | 
|         } | 
|     }; | 
|     return ExhaustMapSubscriber; | 
| }(SimpleOuterSubscriber)); | 
| //# sourceMappingURL=exhaustMap.js.map |