78 lines
2.2 KiB
C#
78 lines
2.2 KiB
C#
//
|
|
// UserStringsHeap.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.Collections;
|
|
using System.Text;
|
|
|
|
internal class UserStringsHeap : MetadataHeap {
|
|
|
|
readonly IDictionary m_strings;
|
|
|
|
public string this [uint offset] {
|
|
get {
|
|
string us = m_strings [offset] as string;
|
|
if (us != null)
|
|
return us;
|
|
|
|
us = ReadStringAt ((int) offset);
|
|
if (us != null && us.Length != 0)
|
|
m_strings [offset] = us;
|
|
|
|
return us;
|
|
}
|
|
set { m_strings [offset] = value; }
|
|
}
|
|
|
|
internal UserStringsHeap (MetadataStream stream) : base (stream, MetadataStream.UserStrings)
|
|
{
|
|
m_strings = new Hashtable ();
|
|
}
|
|
|
|
string ReadStringAt (int offset)
|
|
{
|
|
int length = Utilities.ReadCompressedInteger (this.Data, offset, out offset) - 1;
|
|
if (length < 1)
|
|
return string.Empty;
|
|
|
|
char [] chars = new char [length / 2];
|
|
|
|
for (int i = offset, j = 0; i < offset + length; i += 2)
|
|
chars [j++] = (char) (Data [i] | (Data [i + 1] << 8));
|
|
|
|
return new string (chars);
|
|
}
|
|
|
|
public override void Accept (IMetadataVisitor visitor)
|
|
{
|
|
visitor.VisitUserStringsHeap (this);
|
|
}
|
|
}
|
|
}
|