text: "use strict";
  var __extends = (this && this.__extends) || (function () {
      var extendStatics = function (d, b) {
          extendStatics = Object.setPrototypeOf ||
              ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
              function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
          return extendStatics(d, b);
      }
      return function (d, b) {
          extendStatics(d, b);
          function __() { this.constructor = d; }
          d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
      };
  })();
  Object.defineProperty(exports, "__esModule", { value: true });
  var OuterSubscriber_1 = require("../OuterSubscriber");
  var InnerSubscriber_1 = require("../InnerSubscriber");
  var subscribeToResult_1 = require("../util/subscribeToResult");
  var map_1 = require("./map");
  var from_1 = require("../observable/from");
  function switchMap(project, resultSelector) {
      if (typeof resultSelector === 'function') {
          return function (source) { return source.pipe(switchMap(function (a, i) { return from_1.from(project(a, i)).pipe(map_1.map(function (b, ii) { return resultSelector(a, b, i, ii); })); })); };
      }
      return function (source) { return source.lift(new SwitchMapOperator(project)); };
  }
  exports.switchMap = switchMap;
  var SwitchMapOperator = (function () {
      function SwitchMapOperator(project) {
          this.project = project;
      }
      SwitchMapOperator.prototype.call = function (subscriber, source) {
          return source.subscribe(new SwitchMapSubscriber(subscriber, this.project));
      };
      return SwitchMapOperator;
  }());
  var SwitchMapSubscriber = (function (_super) {
      __extends(SwitchMapSubscriber, _super);
      function SwitchMapSubscriber(destination, project) {
          var _this = _super.call(this, destination) || this;
          _this.project = project;
          _this.index = 0;
          return _this;
      }
      SwitchMapSubscriber.prototype._next = function (value) {
          var result;
          var index = this.index++;
          try {
              result = this.project(value, index);
          }
          catch (error) {
              this.destination.error(error);
              return;
          }
          this._innerSub(result, value, index);
      };
      SwitchMapSubscriber.prototype._innerSub = function (result, value, index) {
          var innerSubscription = this.innerSubscription;
          if (innerSubscription) {
              innerSubscription.unsubscribe();
          }
          var innerSubscriber = new InnerSubscriber_1.InnerSubscriber(this, value, index);
          var destination = this.destination;
          destination.add(innerSubscriber);
          this.innerSubscription = subscribeToResult_1.subscribeToResult(this, result, undefined, undefined, innerSubscriber);
          if (this.innerSubscription !== innerSubscriber) {
              destination.add(this.innerSubscription);
          }
      };
      SwitchMapSubscriber.prototype._complete = function () {
          var innerSubscription = this.innerSubscription;
          if (!innerSubscription || innerSubscription.closed) {
              _super.prototype._complete.call(this);
          }
          this.unsubscribe();
      };
      SwitchMapSubscriber.prototype._unsubscribe = function () {
          this.innerSubscription = null;
      };
      SwitchMapSubscriber.prototype.notifyComplete = function (innerSub) {
          var destination = this.destination;
          destination.remove(innerSub);
          this.innerSubscription = null;
          if (this.isStopped) {
              _super.prototype._complete.call(this);
          }
      };
      SwitchMapSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
          this.destination.next(innerValue);
      };
      return SwitchMapSubscriber;
  }(OuterSubscriber_1.OuterSubscriber));
  //# sourceMappingURL=switchMap.js.map