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Viewing changes to contrib/ICSharpCode.NRefactory/TypeSystem/Implementation/DefaultAssemblyReference.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
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// 
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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// 
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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// 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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namespace ICSharpCode.NRefactory.TypeSystem.Implementation
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{
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        /// <summary>
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        /// References an existing assembly by name.
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        /// </summary>
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        [Serializable]
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        public sealed class DefaultAssemblyReference : IAssemblyReference, ISupportsInterning
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        {
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                public static readonly IAssemblyReference CurrentAssembly = new CurrentAssemblyReference();
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                public static readonly IAssemblyReference Corlib = new DefaultAssemblyReference("mscorlib");
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                string shortName;
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                public DefaultAssemblyReference(string assemblyName)
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                {
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                        int pos = assemblyName.IndexOf(',');
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                        if (pos >= 0)
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                                shortName = assemblyName.Substring(0, pos);
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                        else
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                                shortName = assemblyName;
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                }
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                public IAssembly Resolve(ITypeResolveContext context)
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                {
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                        IAssembly current = context.CurrentAssembly;
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                        if (current != null && string.Equals(shortName, current.AssemblyName, StringComparison.OrdinalIgnoreCase))
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                                return current;
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                        foreach (IAssembly asm in context.Compilation.Assemblies) {
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                                if (string.Equals(shortName, asm.AssemblyName, StringComparison.OrdinalIgnoreCase))
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                                        return asm;
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                        }
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                        return null;
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                }
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                public override string ToString()
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                {
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                        return shortName;
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                }
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                void ISupportsInterning.PrepareForInterning(IInterningProvider provider)
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                {
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                        shortName = provider.Intern(shortName);
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                }
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                int ISupportsInterning.GetHashCodeForInterning()
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                {
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                        unchecked {
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                                return shortName.GetHashCode();
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                        }
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                }
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                bool ISupportsInterning.EqualsForInterning(ISupportsInterning other)
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                {
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                        DefaultAssemblyReference o = other as DefaultAssemblyReference;
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                        return o != null && shortName == o.shortName;
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                }
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                [Serializable]
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                sealed class CurrentAssemblyReference : IAssemblyReference
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                {
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                        public IAssembly Resolve(ITypeResolveContext context)
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                        {
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                                IAssembly asm = context.CurrentAssembly;
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                                if (asm == null)
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                                        throw new ArgumentException("A reference to the current assembly cannot be resolved in the compilation's global type resolve context.");
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                                return asm;
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                        }
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                }
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        }
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}