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Viewing changes to contrib/ICSharpCode.NRefactory/TypeSystem/Implementation/KnownTypeCache.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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contrib/ICSharpCode.NRefactory/TypeSystem/Implementation/KnownTypeCache.cs
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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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using ICSharpCode.NRefactory.Utils;
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namespace ICSharpCode.NRefactory.TypeSystem.Implementation
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{
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        /// <summary>
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        /// Cache for KnownTypeReferences.
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        /// </summary>
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        sealed class KnownTypeCache
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        {
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                readonly ICompilation compilation;
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                readonly IType[] knownTypes = new IType[KnownTypeReference.KnownTypeCodeCount];
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                public KnownTypeCache(ICompilation compilation)
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                {
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                        this.compilation = compilation;
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                }
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                public IType FindType(KnownTypeCode typeCode)
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                {
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                        IType type = LazyInit.VolatileRead(ref knownTypes[(int)typeCode]);
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                        if (type != null) {
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                                return type;
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                        }
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                        return LazyInit.GetOrSet(ref knownTypes[(int)typeCode], SearchType(typeCode));
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                }
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                IType SearchType(KnownTypeCode typeCode)
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                {
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                        KnownTypeReference typeRef = KnownTypeReference.Get(typeCode);
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                        if (typeRef == null)
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                                return SpecialType.UnknownType;
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                        foreach (IAssembly asm in compilation.Assemblies) {
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                                var typeDef = asm.GetTypeDefinition(typeRef.Namespace, typeRef.Name, typeRef.TypeParameterCount);
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                                if (typeDef != null)
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                                        return typeDef;
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                        }
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                        return new UnknownType(typeRef.Namespace, typeRef.Name, typeRef.TypeParameterCount);
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                }
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        }
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}