| 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 |