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import { OuterSubscriber } from '../OuterSubscriber';
import { subscribeToResult } from '../util/subscribeToResult';
export function exhaust() {
return (source) => source.lift(new SwitchFirstOperator());
}
class SwitchFirstOperator {
call(subscriber, source) {
return source.subscribe(new SwitchFirstSubscriber(subscriber));
}
}
class SwitchFirstSubscriber extends OuterSubscriber {
constructor(destination) {
super(destination);
this.hasCompleted = false;
this.hasSubscription = false;
}
_next(value) {
if (!this.hasSubscription) {
this.hasSubscription = true;
this.add(subscribeToResult(this, value));
}
}
_complete() {
this.hasCompleted = true;
if (!this.hasSubscription) {
this.destination.complete();
}
}
notifyComplete(innerSub) {
this.remove(innerSub);
this.hasSubscription = false;
if (this.hasCompleted) {
this.destination.complete();
}
}
}
//# sourceMappingURL=exhaust.js.map