// // 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; public 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; return Encoding.Unicode.GetString (this.Data, offset, length); } public override void Accept (IMetadataVisitor visitor) { visitor.VisitUserStringsHeap (this); } } }