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- {"ast":null,"code":"import { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport function debounce(durationSelector) {\n return source => source.lift(new DebounceOperator(durationSelector));\n}\nclass DebounceOperator {\n constructor(durationSelector) {\n this.durationSelector = durationSelector;\n }\n call(subscriber, source) {\n return source.subscribe(new DebounceSubscriber(subscriber, this.durationSelector));\n }\n}\nclass DebounceSubscriber extends OuterSubscriber {\n constructor(destination, durationSelector) {\n super(destination);\n this.durationSelector = durationSelector;\n this.hasValue = false;\n this.durationSubscription = null;\n }\n _next(value) {\n try {\n const result = this.durationSelector.call(this, value);\n if (result) {\n this._tryNext(value, result);\n }\n } catch (err) {\n this.destination.error(err);\n }\n }\n _complete() {\n this.emitValue();\n this.destination.complete();\n }\n _tryNext(value, duration) {\n let subscription = this.durationSubscription;\n this.value = value;\n this.hasValue = true;\n if (subscription) {\n subscription.unsubscribe();\n this.remove(subscription);\n }\n subscription = subscribeToResult(this, duration);\n if (subscription && !subscription.closed) {\n this.add(this.durationSubscription = subscription);\n }\n }\n notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n this.emitValue();\n }\n notifyComplete() {\n this.emitValue();\n }\n emitValue() {\n if (this.hasValue) {\n const value = this.value;\n const subscription = this.durationSubscription;\n if (subscription) {\n this.durationSubscription = null;\n subscription.unsubscribe();\n this.remove(subscription);\n }\n this.value = null;\n this.hasValue = false;\n super._next(value);\n }\n }\n}\n//# sourceMappingURL=debounce.js.map","map":null,"metadata":{},"sourceType":"module","externalDependencies":[]}
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