var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) Eif (b.hasOwnProperty(p)) d[p] = b[p];
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var tryCatch_1 = require('../util/tryCatch');
var errorObject_1 = require('../util/errorObject');
var OuterSubscriber_1 = require('../OuterSubscriber');
var subscribeToResult_1 = require('../util/subscribeToResult');
function switchMap(project, resultSelector) {
return this.lift(new SwitchMapOperator(project, resultSelector));
}
exports.switchMap = switchMap;
var SwitchMapOperator = (function () {
function SwitchMapOperator(project, resultSelector) {
this.project = project;
this.resultSelector = resultSelector;
}
SwitchMapOperator.prototype.call = function (subscriber) {
return new SwitchMapSubscriber(subscriber, this.project, this.resultSelector);
};
return SwitchMapOperator;
})();
var SwitchMapSubscriber = (function (_super) {
__extends(SwitchMapSubscriber, _super);
function SwitchMapSubscriber(destination, project, resultSelector) {
_super.call(this, destination);
this.project = project;
this.resultSelector = resultSelector;
this.hasCompleted = false;
this.index = 0;
}
SwitchMapSubscriber.prototype._next = function (value) {
var index = this.index++;
var destination = this.destination;
var result = tryCatch_1.tryCatch(this.project)(value, index);
if (result === errorObject_1.errorObject) {
destination.error(result.e);
}
else {
var innerSubscription = this.innerSubscription;
if (innerSubscription) {
innerSubscription.unsubscribe();
}
this.add(this.innerSubscription = subscribeToResult_1.subscribeToResult(this, result, value, index));
}
};
SwitchMapSubscriber.prototype._complete = function () {
var innerSubscription = this.innerSubscription;
this.hasCompleted = true;
if (!innerSubscription || innerSubscription.isUnsubscribed) {
this.destination.complete();
}
};
SwitchMapSubscriber.prototype.notifyComplete = function (innerSub) {
this.remove(innerSub);
var prevSubscription = this.innerSubscription;
if (prevSubscription) {
prevSubscription.unsubscribe();
}
this.innerSubscription = null;
if (this.hasCompleted) {
this.destination.complete();
}
};
SwitchMapSubscriber.prototype.notifyError = function (err) {
this.destination.error(err);
};
SwitchMapSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex) {
var _a = this, resultSelector = _a.resultSelector, destination = _a.destination;
if (resultSelector) {
var result = tryCatch_1.tryCatch(resultSelector)(outerValue, innerValue, outerIndex, innerIndex);
if (result === errorObject_1.errorObject) {
destination.error(errorObject_1.errorObject.e);
}
else {
destination.next(result);
}
}
else {
destination.next(innerValue);
}
};
return SwitchMapSubscriber;
})(OuterSubscriber_1.OuterSubscriber);
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