91 lines
2.3 KiB
C#
91 lines
2.3 KiB
C#
//
|
|
// BlobHeap.cs
|
|
//
|
|
// Author:
|
|
// Jb Evain (jbevain@gmail.com)
|
|
//
|
|
// (C) 2005 Jb Evain
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining
|
|
// a copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to
|
|
// permit persons to whom the Software is furnished to do so, subject to
|
|
// the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be
|
|
// included in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
//
|
|
|
|
namespace Mono.Cecil.Metadata {
|
|
|
|
using System;
|
|
using System.Collections;
|
|
using System.IO;
|
|
|
|
internal class BlobHeap : MetadataHeap {
|
|
|
|
internal BlobHeap (MetadataStream stream) : base (stream, MetadataStream.Blob)
|
|
{
|
|
}
|
|
|
|
public byte [] Read (uint index)
|
|
{
|
|
return ReadBytesFromStream (index);
|
|
}
|
|
|
|
public BinaryReader GetReader (uint index)
|
|
{
|
|
return new BinaryReader (new MemoryStream (Read (index)));
|
|
}
|
|
|
|
public override void Accept (IMetadataVisitor visitor)
|
|
{
|
|
visitor.VisitBlobHeap (this);
|
|
}
|
|
}
|
|
|
|
class ByteArrayEqualityComparer : IHashCodeProvider, IComparer {
|
|
|
|
public static readonly ByteArrayEqualityComparer Instance = new ByteArrayEqualityComparer ();
|
|
|
|
public int GetHashCode (object obj)
|
|
{
|
|
byte [] array = (byte []) obj;
|
|
|
|
int hash = 0;
|
|
for (int i = 0; i < array.Length; i++)
|
|
hash = (hash * 37) ^ array [i];
|
|
|
|
return hash;
|
|
}
|
|
|
|
public int Compare (object a, object b)
|
|
{
|
|
byte [] x = (byte []) a;
|
|
byte [] y = (byte []) b;
|
|
|
|
if (x == null || y == null)
|
|
return x == y ? 0 : 1;
|
|
|
|
if (x.Length != y.Length)
|
|
return 1;
|
|
|
|
for (int i = 0; i < x.Length; i++)
|
|
if (x [i] != y [i])
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
}
|