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import { innerFrom } from '../observable/innerFrom';
import { operate } from '../util/lift';
import { createOperatorSubscriber } from './OperatorSubscriber';
export function switchMap(project, resultSelector) {
return operate(function (source, subscriber) {
var innerSubscriber = null;
var index = 0;
var isComplete = false;
var checkComplete = function () { return isComplete && !innerSubscriber && subscriber.complete(); };
source.subscribe(createOperatorSubscriber(subscriber, function (value) {
innerSubscriber === null || innerSubscriber === void 0 ? void 0 : innerSubscriber.unsubscribe();
var innerIndex = 0;
var outerIndex = index++;
innerFrom(project(value, outerIndex)).subscribe((innerSubscriber = createOperatorSubscriber(subscriber, function (innerValue) { return subscriber.next(resultSelector ? resultSelector(value, innerValue, outerIndex, innerIndex++) : innerValue); }, function () {
innerSubscriber = null;
checkComplete();
})));
}, function () {
isComplete = true;
checkComplete();
}));
});
}
//# sourceMappingURL=switchMap.js.map
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