| import { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe'; | 
| export function audit(durationSelector) { | 
|     return function auditOperatorFunction(source) { | 
|         return source.lift(new AuditOperator(durationSelector)); | 
|     }; | 
| } | 
| class AuditOperator { | 
|     constructor(durationSelector) { | 
|         this.durationSelector = durationSelector; | 
|     } | 
|     call(subscriber, source) { | 
|         return source.subscribe(new AuditSubscriber(subscriber, this.durationSelector)); | 
|     } | 
| } | 
| class AuditSubscriber extends SimpleOuterSubscriber { | 
|     constructor(destination, durationSelector) { | 
|         super(destination); | 
|         this.durationSelector = durationSelector; | 
|         this.hasValue = false; | 
|     } | 
|     _next(value) { | 
|         this.value = value; | 
|         this.hasValue = true; | 
|         if (!this.throttled) { | 
|             let duration; | 
|             try { | 
|                 const { durationSelector } = this; | 
|                 duration = durationSelector(value); | 
|             } | 
|             catch (err) { | 
|                 return this.destination.error(err); | 
|             } | 
|             const innerSubscription = innerSubscribe(duration, new SimpleInnerSubscriber(this)); | 
|             if (!innerSubscription || innerSubscription.closed) { | 
|                 this.clearThrottle(); | 
|             } | 
|             else { | 
|                 this.add(this.throttled = innerSubscription); | 
|             } | 
|         } | 
|     } | 
|     clearThrottle() { | 
|         const { value, hasValue, throttled } = this; | 
|         if (throttled) { | 
|             this.remove(throttled); | 
|             this.throttled = undefined; | 
|             throttled.unsubscribe(); | 
|         } | 
|         if (hasValue) { | 
|             this.value = undefined; | 
|             this.hasValue = false; | 
|             this.destination.next(value); | 
|         } | 
|     } | 
|     notifyNext() { | 
|         this.clearThrottle(); | 
|     } | 
|     notifyComplete() { | 
|         this.clearThrottle(); | 
|     } | 
| } | 
| //# sourceMappingURL=audit.js.map |