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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
#if !NO_PERF
using System;
using System.Reactive.Concurrency;
namespace System.Reactive.Linq.ObservableImpl
{
class Return<TResult> : Producer<TResult>
{
private readonly TResult _value;
private readonly IScheduler _scheduler;
public Return(TResult value, IScheduler scheduler)
{
_value = value;
_scheduler = scheduler;
}
protected override IDisposable Run(IObserver<TResult> observer, IDisposable cancel, Action<IDisposable> setSink)
{
var sink = new _(this, observer, cancel);
setSink(sink);
return sink.Run();
}
class _ : Sink<TResult>
{
private readonly Return<TResult> _parent;
public _(Return<TResult> parent, IObserver<TResult> observer, IDisposable cancel)
: base(observer, cancel)
{
_parent = parent;
}
public IDisposable Run()
{
return _parent._scheduler.Schedule(Invoke);
}
private void Invoke()
{
base._observer.OnNext(_parent._value);
base._observer.OnCompleted();
base.Dispose();
}
}
}
}
#endif
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