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"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, undefined, undefined);
this.add(innerSubscriber);
this.innerSubscription = subscribeToResult_1.subscribeToResult(this, result, value, index, innerSubscriber);
};
SwitchMapSubscriber.prototype._complete = function () {
var innerSubscription = this.innerSubscription;
if (!innerSubscription || innerSubscription.closed) {
_super.prototype._complete.call(this);
}
};
SwitchMapSubscriber.prototype._unsubscribe = function () {
this.innerSubscription = null;
};
SwitchMapSubscriber.prototype.notifyComplete = function (innerSub) {
this.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
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