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