DelegatingStream.cs

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using System.Threading;
using System.Threading.Tasks;
 
namespace System.IO;
 
internal abstract class DelegatingStream : Stream
{
    private readonly Stream _innerStream;
 
    public override bool CanRead => _innerStream.CanRead;
 
    public override bool CanSeek => _innerStream.CanSeek;
 
    public override bool CanWrite => _innerStream.CanWrite;
 
    public override long Length => _innerStream.Length;
 
    public override long Position
    {
        get
        {
            return _innerStream.Position;
        }
        set
        {
            _innerStream.Position = value;
        }
    }
 
    public override int ReadTimeout
    {
        get
        {
            return _innerStream.ReadTimeout;
        }
        set
        {
            _innerStream.ReadTimeout = value;
        }
    }
 
    public override bool CanTimeout => _innerStream.CanTimeout;
 
    public override int WriteTimeout
    {
        get
        {
            return _innerStream.WriteTimeout;
        }
        set
        {
            _innerStream.WriteTimeout = value;
        }
    }
 
    protected DelegatingStream(Stream innerStream)
    {
        _innerStream = innerStream;
    }
 
    protected override void Dispose(bool disposing)
    {
        if (disposing)
        {
            _innerStream.Dispose();
        }
        base.Dispose(disposing);
    }
 
    public override ValueTask DisposeAsync()
    {
        return _innerStream.DisposeAsync();
    }
 
    public override long Seek(long offset, SeekOrigin origin)
    {
        return _innerStream.Seek(offset, origin);
    }
 
    public override int Read(byte[] buffer, int offset, int count)
    {
        return _innerStream.Read(buffer, offset, count);
    }
 
    public override int Read(Span<byte> buffer)
    {
        return _innerStream.Read(buffer);
    }
 
    public override int ReadByte()
    {
        return _innerStream.ReadByte();
    }
 
    public override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
    {
        return _innerStream.ReadAsync(buffer, offset, count, cancellationToken);
    }
 
    public override ValueTask<int> ReadAsync(Memory<byte> buffer, CancellationToken cancellationToken = default(CancellationToken))
    {
        return _innerStream.ReadAsync(buffer, cancellationToken);
    }
 
    public override IAsyncResult BeginRead(byte[] buffer, int offset, int count, AsyncCallback callback, object state)
    {
        return _innerStream.BeginRead(buffer, offset, count, callback, state);
    }
 
    public override int EndRead(IAsyncResult asyncResult)
    {
        return _innerStream.EndRead(asyncResult);
    }
 
    public override void Flush()
    {
        _innerStream.Flush();
    }
 
    public override Task FlushAsync(CancellationToken cancellationToken)
    {
        return _innerStream.FlushAsync(cancellationToken);
    }
 
    public override void SetLength(long value)
    {
        _innerStream.SetLength(value);
    }
 
    public override void Write(byte[] buffer, int offset, int count)
    {
        _innerStream.Write(buffer, offset, count);
    }
 
    public override void Write(ReadOnlySpan<byte> buffer)
    {
        _innerStream.Write(buffer);
    }
 
    public override void WriteByte(byte value)
    {
        _innerStream.WriteByte(value);
    }
 
    public override Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
    {
        return _innerStream.WriteAsync(buffer, offset, count, cancellationToken);
    }
 
    public override ValueTask WriteAsync(ReadOnlyMemory<byte> buffer, CancellationToken cancellationToken = default(CancellationToken))
    {
        return _innerStream.WriteAsync(buffer, cancellationToken);
    }
 
    public override IAsyncResult BeginWrite(byte[] buffer, int offset, int count, AsyncCallback callback, object state)
    {
        return _innerStream.BeginWrite(buffer, offset, count, callback, state);
    }
 
    public override void EndWrite(IAsyncResult asyncResult)
    {
        _innerStream.EndWrite(asyncResult);
    }
 
    public override Task CopyToAsync(Stream destination, int bufferSize, CancellationToken cancellationToken)
    {
        return _innerStream.CopyToAsync(destination, bufferSize, cancellationToken);
    }
}