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Viewing changes to contrib/ICSharpCode.NRefactory/TypeSystem/Implementation/NestedTypeReference.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/NestedTypeReference.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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namespace ICSharpCode.NRefactory.TypeSystem.Implementation
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{
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        /// <summary>
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        /// Type reference used to reference nested types.
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        /// </summary>
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        [Serializable]
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        public sealed class NestedTypeReference : ITypeReference, ISupportsInterning
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        {
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                ITypeReference declaringTypeRef;
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                string name;
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                int additionalTypeParameterCount;
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                /// <summary>
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                /// Creates a new NestedTypeReference.
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                /// </summary>
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                /// <param name="declaringTypeRef">Reference to the declaring type.</param>
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                /// <param name="name">Name of the nested class</param>
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                /// <param name="additionalTypeParameterCount">Number of type parameters on the inner class (without type parameters on baseTypeRef)</param>
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                /// <remarks>
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                /// <paramref name="declaringTypeRef"/> must be exactly the (unbound) declaring type, not a derived type, not a parameterized type.
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                /// NestedTypeReference thus always resolves to a type definition, never to (partially) parameterized types.
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                /// </remarks>
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                public NestedTypeReference(ITypeReference declaringTypeRef, string name, int additionalTypeParameterCount)
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                {
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                        if (declaringTypeRef == null)
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                                throw new ArgumentNullException("declaringTypeRef");
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                        if (name == null)
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                                throw new ArgumentNullException("name");
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                        this.declaringTypeRef = declaringTypeRef;
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                        this.name = name;
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                        this.additionalTypeParameterCount = additionalTypeParameterCount;
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                }
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                public ITypeReference DeclaringTypeReference {
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                        get { return declaringTypeRef; }
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                }
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                public string Name {
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                        get { return name; }
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                }
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                public int AdditionalTypeParameterCount {
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                        get { return additionalTypeParameterCount; }
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                }
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                public IType Resolve(ITypeResolveContext context)
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                {
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                        ITypeDefinition declaringType = declaringTypeRef.Resolve(context) as ITypeDefinition;
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                        if (declaringType != null) {
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                                int tpc = declaringType.TypeParameterCount;
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                                foreach (IType type in declaringType.NestedTypes) {
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                                        if (type.Name == name && type.TypeParameterCount == tpc + additionalTypeParameterCount)
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                                                return type;
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                                }
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                        }
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                        return new UnknownType(null, name, additionalTypeParameterCount);
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                }
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                public override string ToString()
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                {
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                        if (additionalTypeParameterCount == 0)
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                                return declaringTypeRef + "+" + name;
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                        else
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                                return declaringTypeRef + "+" + name + "`" + additionalTypeParameterCount;
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                }
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                void ISupportsInterning.PrepareForInterning(IInterningProvider provider)
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                {
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                        declaringTypeRef = provider.Intern(declaringTypeRef);
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                        name = provider.Intern(name);
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                }
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                int ISupportsInterning.GetHashCodeForInterning()
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                {
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                        return declaringTypeRef.GetHashCode() ^ name.GetHashCode() ^ additionalTypeParameterCount;
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                }
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                bool ISupportsInterning.EqualsForInterning(ISupportsInterning other)
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                {
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                        NestedTypeReference o = other as NestedTypeReference;
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                        return o != null && declaringTypeRef == o.declaringTypeRef && name == o.name && additionalTypeParameterCount == o.additionalTypeParameterCount;
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                }
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        }
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}