Kit.Core/LibExternal/System.Reactive/Linq/Observable/ToArray.cs

58 lines
1.5 KiB
C#

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT License.
// See the LICENSE file in the project root for more information.
using System.Collections.Generic;
namespace System.Reactive.Linq.ObservableImpl
{
internal sealed class ToArray<TSource> : Producer<TSource[], ToArray<TSource>._>
{
private readonly IObservable<TSource> _source;
public ToArray(IObservable<TSource> source)
{
_source = source;
}
protected override _ CreateSink(IObserver<TSource[]> observer) => new(observer);
protected override void Run(_ sink) => sink.Run(_source);
internal sealed class _ : Sink<TSource, TSource[]>
{
private List<TSource> _list;
public _(IObserver<TSource[]> observer)
: base(observer)
{
_list = new List<TSource>();
}
public override void OnNext(TSource value)
{
_list.Add(value);
}
public override void OnError(Exception error)
{
Cleanup();
base.OnError(error);
}
public override void OnCompleted()
{
var list = _list;
Cleanup();
ForwardOnNext(list.ToArray());
ForwardOnCompleted();
}
private void Cleanup()
{
_list = null!;
}
}
}
}