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//
// Author:
// Jb Evain (jbevain@gmail.com)
//
// Copyright (c) 2008 - 2015 Jb Evain
// Copyright (c) 2008 - 2011 Novell, Inc.
//
// Licensed under the MIT/X11 license.
//
using System;
using System.Collections.Generic;
using System.Text;
namespace Mono.Cecil.Metadata {
class StringHeap : Heap {
readonly Dictionary<uint, string> strings = new Dictionary<uint, string> ();
public StringHeap (byte [] data)
: base (data)
{
}
public string Read (uint index)
{
if (index == 0)
return string.Empty;
string @string;
if (strings.TryGetValue (index, out @string))
return @string;
if (index > data.Length - 1)
return string.Empty;
@string = ReadStringAt (index);
if (@string.Length != 0)
strings.Add (index, @string);
return @string;
}
protected virtual string ReadStringAt (uint index)
{
int length = 0;
int start = (int) index;
for (int i = start; ; i++) {
if (data [i] == 0)
break;
length++;
}
return Encoding.UTF8.GetString (data, start, length);
}
}
}
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