| import { Subscriber } from '../Subscriber'; |
| import { async } from '../scheduler/async'; |
| export function sampleTime(period, scheduler = async) { |
| return (source) => source.lift(new SampleTimeOperator(period, scheduler)); |
| } |
| class SampleTimeOperator { |
| constructor(period, scheduler) { |
| this.period = period; |
| this.scheduler = scheduler; |
| } |
| call(subscriber, source) { |
| return source.subscribe(new SampleTimeSubscriber(subscriber, this.period, this.scheduler)); |
| } |
| } |
| class SampleTimeSubscriber extends Subscriber { |
| constructor(destination, period, scheduler) { |
| super(destination); |
| this.period = period; |
| this.scheduler = scheduler; |
| this.hasValue = false; |
| this.add(scheduler.schedule(dispatchNotification, period, { subscriber: this, period })); |
| } |
| _next(value) { |
| this.lastValue = value; |
| this.hasValue = true; |
| } |
| notifyNext() { |
| if (this.hasValue) { |
| this.hasValue = false; |
| this.destination.next(this.lastValue); |
| } |
| } |
| } |
| function dispatchNotification(state) { |
| let { subscriber, period } = state; |
| subscriber.notifyNext(); |
| this.schedule(state, period); |
| } |
| //# sourceMappingURL=sampleTime.js.map |