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// Jb Evain (jbevain@gmail.com)
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// Copyright (c) 2008 - 2010 Jb Evain
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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using RVA = System.UInt32;
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namespace Mono.Cecil.PE {
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sealed class TextMap {
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readonly Range [] map = new Range [16 /*Enum.GetValues (typeof (TextSegment)).Length*/];
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public void AddMap (TextSegment segment, int length)
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map [(int) segment] = new Range (GetStart (segment), (uint) length);
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public void AddMap (TextSegment segment, int length, int align)
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AddMap (segment, (length + align) & ~align);
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public void AddMap (TextSegment segment, Range range)
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map [(int) segment] = range;
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public Range GetRange (TextSegment segment)
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return map [(int) segment];
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public DataDirectory GetDataDirectory (TextSegment segment)
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var range = map [(int) segment];
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return new DataDirectory (range.Length == 0 ? 0 : range.Start, range.Length);
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public RVA GetRVA (TextSegment segment)
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return map [(int) segment].Start;
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public RVA GetNextRVA (TextSegment segment)
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var i = (int) segment;
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return map [i].Start + map [i].Length;
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public int GetLength (TextSegment segment)
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return (int) map [(int) segment].Length;
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RVA GetStart (TextSegment segment)
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var index = (int) segment;
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return index == 0 ? ImageWriter.text_rva : ComputeStart (index);
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RVA ComputeStart (int index)
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return map [index].Start + map [index].Length;
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public uint GetLength ()
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var range = map [(int) TextSegment.StartupStub];
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return range.Start - ImageWriter.text_rva + range.Length;