93 lines
2.5 KiB
C#
93 lines
2.5 KiB
C#
//
|
|
// MetadataHeap.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 Mono.Cecil;
|
|
|
|
internal abstract class MetadataHeap : IMetadataVisitable {
|
|
|
|
MetadataStream m_stream;
|
|
string m_name;
|
|
byte [] m_data;
|
|
|
|
public string Name {
|
|
get { return m_name; }
|
|
}
|
|
|
|
public byte [] Data {
|
|
get { return m_data; }
|
|
set { m_data = value; }
|
|
}
|
|
|
|
public int IndexSize;
|
|
|
|
internal MetadataHeap (MetadataStream stream, string name)
|
|
{
|
|
m_name = name;
|
|
m_stream = stream;
|
|
}
|
|
|
|
public static MetadataHeap HeapFactory (MetadataStream stream)
|
|
{
|
|
switch (stream.Header.Name) {
|
|
case MetadataStream.Tables :
|
|
case MetadataStream.IncrementalTables :
|
|
return new TablesHeap (stream);
|
|
case MetadataStream.GUID :
|
|
return new GuidHeap (stream);
|
|
case MetadataStream.Strings :
|
|
return new StringsHeap (stream);
|
|
case MetadataStream.UserStrings :
|
|
return new UserStringsHeap (stream);
|
|
case MetadataStream.Blob :
|
|
return new BlobHeap (stream);
|
|
default :
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public MetadataStream GetStream ()
|
|
{
|
|
return m_stream;
|
|
}
|
|
|
|
protected virtual byte [] ReadBytesFromStream (uint pos)
|
|
{
|
|
int start, length = Utilities.ReadCompressedInteger (m_data, (int) pos, out start);
|
|
byte [] buffer = new byte [length];
|
|
Buffer.BlockCopy (m_data, start, buffer, 0, length);
|
|
return buffer;
|
|
}
|
|
|
|
public abstract void Accept (IMetadataVisitor visitor);
|
|
}
|
|
}
|