MemoryBlockProvider.cs

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using System.IO;
 
namespace System.Reflection.Internal;
 
internal abstract class MemoryBlockProvider : IDisposable
{
    public abstract int Size { get; }
 
    public AbstractMemoryBlock GetMemoryBlock()
    {
        return GetMemoryBlockImpl(0, Size);
    }
 
    public AbstractMemoryBlock GetMemoryBlock(int start, int size)
    {
        if ((ulong)((long)(uint)start + (long)(uint)size) > (ulong)Size)
        {
            Throw.ImageTooSmallOrContainsInvalidOffsetOrCount();
        }
        return GetMemoryBlockImpl(start, size);
    }
 
    protected abstract AbstractMemoryBlock GetMemoryBlockImpl(int start, int size);
 
    public abstract Stream GetStream(out StreamConstraints constraints);
 
    protected abstract void Dispose(bool disposing);
 
    public void Dispose()
    {
        Dispose(disposing: true);
        GC.SuppressFinalize(this);
    }
}