// 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;
using System.Buffers;
using System.IO;

namespace CommunityToolkit.HighPerformance.Streams;

/// <summary>
/// A <see cref="Stream"/> implementation wrapping an <see cref="IMemoryOwner{T}"/> of <see cref="byte"/> instance.
/// </summary>
/// <typeparam name="TSource">The type of source to use for the underlying data.</typeparam>
internal sealed class IMemoryOwnerStream<TSource> : MemoryStream<TSource>
    where TSource : struct, ISpanOwner
{
    /// <summary>
    /// The <see cref="IDisposable"/> instance currently in use.
    /// </summary>
    private readonly IDisposable disposable;

    /// <summary>
    /// Initializes a new instance of the <see cref="IMemoryOwnerStream{TSource}"/> class.
    /// </summary>
    /// <param name="source">The input <typeparamref name="TSource"/> instance to use.</param>
    /// <param name="disposable">The <see cref="IDisposable"/> instance currently in use.</param>
    public IMemoryOwnerStream(TSource source, IDisposable disposable)
        : base(source, false)
    {
        this.disposable = disposable;
    }

    /// <inheritdoc/>
    protected override void Dispose(bool disposing)
    {
        base.Dispose(disposing);

        this.disposable.Dispose();
    }
}