using System.Reactive.Concurrency; namespace System.Reactive.Linq.ObservableImpl { internal sealed class Empty<TResult> : Producer<TResult, Empty<TResult>._> { internal sealed class _ : IdentitySink<TResult> { public _(IObserver<TResult> observer) : base(observer) { } public void Run(IScheduler scheduler) { SetUpstream(Scheduler.ScheduleAction<_>(scheduler, this, (Action<_>)delegate(_ target) { target.OnCompleted(); })); } } private readonly IScheduler _scheduler; public Empty(IScheduler scheduler) { _scheduler = scheduler; } protected override _ CreateSink(IObserver<TResult> observer) { return new _(observer); } protected override void Run(_ sink) { sink.Run(_scheduler); } } }