// // GuidHeap.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; using System.Collections; public class GuidHeap : MetadataHeap { readonly IDictionary m_guids; public IDictionary Guids { get { return m_guids; } } public GuidHeap (MetadataStream stream) : base (stream, MetadataStream.GUID) { m_guids = new Hashtable (); } public Guid this [uint index] { get { if (index == 0) return new Guid (new byte [16]); int idx = (int) index - 1; if (m_guids.Contains (idx)) return (Guid) m_guids [idx]; if (idx + 16 > this.Data.Length) throw new IndexOutOfRangeException (); byte[] buffer = new byte [16]; Buffer.BlockCopy (this.Data, idx, buffer, 0, 16); Guid res = new Guid (buffer); m_guids [idx] = res; return res; } set { m_guids [index] = value; } } public override void Accept (IMetadataVisitor visitor) { visitor.VisitGuidHeap (this); } } }