import {Operator} from '../Operator';
import {Observable} from '../Observable';
import {Subscriber} from '../Subscriber';
import {Scheduler} from '../Scheduler';
import {asap} from '../scheduler/asap';
export function timeInterval<T>(Ischeduler: Scheduler = asap): Observable<TimeInterval<T>> {
return this.lift(new TimeIntervalOperator(scheduler));
}
export class TimeInterval<T> {
constructor(public value: T, public interval: number) {
}
};
class TimeIntervalOperator<T> implements Operator<T, TimeInterval<T>> {
constructor(private scheduler: Scheduler) {
}
call(observer: Subscriber<TimeInterval<T>>): Subscriber<T> {
return new TimeIntervalSubscriber(observer, this.scheduler);
}
}
class TimeIntervalSubscriber<T> extends Subscriber<T> {
private lastTime: number = 0;
constructor(destination: Subscriber<TimeInterval<T>>, private scheduler: Scheduler) {
super(destination);
this.lastTime = scheduler.now();
}
protected _next(value: T) {
let now = this.scheduler.now();
let span = now - this.lastTime;
this.lastTime = now;
this.destination.next(new TimeInterval(value, span));
}
}
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