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Viewing changes to contrib/ICSharpCode.NRefactory.CSharp/TypeSystem/MemberTypeOrNamespaceReference.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.CSharp/TypeSystem/MemberTypeOrNamespaceReference.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 System.Collections.Generic;
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using System.Collections.ObjectModel;
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using ICSharpCode.NRefactory.CSharp.Resolver;
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using ICSharpCode.NRefactory.Semantics;
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using ICSharpCode.NRefactory.TypeSystem;
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using ICSharpCode.NRefactory.Utils;
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namespace ICSharpCode.NRefactory.CSharp.TypeSystem
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{
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        /// <summary>
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        /// Reference to a qualified type or namespace name.
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        /// </summary>
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        [Serializable]
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        public sealed class MemberTypeOrNamespaceReference : TypeOrNamespaceReference, ISupportsInterning
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        {
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                TypeOrNamespaceReference target;
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                string identifier;
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                IList<ITypeReference> typeArguments;
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                readonly NameLookupMode lookupMode;
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                public MemberTypeOrNamespaceReference(TypeOrNamespaceReference target, string identifier, IList<ITypeReference> typeArguments, NameLookupMode lookupMode = NameLookupMode.Type)
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                {
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                        if (target == null)
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                                throw new ArgumentNullException("target");
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                        if (identifier == null)
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                                throw new ArgumentNullException("identifier");
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                        this.target = target;
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                        this.identifier = identifier;
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                        this.typeArguments = typeArguments ?? EmptyList<ITypeReference>.Instance;
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                        this.lookupMode = lookupMode;
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                }
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                public string Identifier {
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                        get { return identifier; }
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                }
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                public TypeOrNamespaceReference Target {
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                        get { return target; }
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                }
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                public IList<ITypeReference> TypeArguments {
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                        get { return new ReadOnlyCollection<ITypeReference>(typeArguments); }
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                }
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                /// <summary>
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                /// Adds a suffix to the identifier.
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                /// Does not modify the existing type reference, but returns a new one.
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                /// </summary>
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                public MemberTypeOrNamespaceReference AddSuffix(string suffix)
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                {
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                        return new MemberTypeOrNamespaceReference(target, identifier + suffix, typeArguments);
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                }
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                public override ResolveResult Resolve(CSharpResolver resolver)
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                {
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                        ResolveResult targetRR = target.Resolve(resolver);
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                        if (targetRR.IsError)
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                                return targetRR;
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                        IList<IType> typeArgs = typeArguments.Resolve(resolver.CurrentTypeResolveContext);
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                        using (var busyLock = BusyManager.Enter(this)) {
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                                if (busyLock.Success) {
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                                        return resolver.ResolveMemberAccess(targetRR, identifier, typeArgs, lookupMode);
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                                } else {
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                                        // This can happen for "class Test : $Test.Base$ { public class Base {} }":
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                                        return ErrorResolveResult.UnknownError; // don't cache this error
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                                }
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                        }
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                }
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                public override string ToString()
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                {
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                        if (typeArguments.Count == 0)
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                                return target.ToString() + "." + identifier;
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                        else
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                                return target.ToString() + "." + identifier + "<" + string.Join(",", typeArguments) + ">";
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                }
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                void ISupportsInterning.PrepareForInterning(IInterningProvider provider)
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                {
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                        target = provider.Intern(target);
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                        identifier = provider.Intern(identifier);
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                        typeArguments = provider.InternList(typeArguments);
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                }
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                int ISupportsInterning.GetHashCodeForInterning()
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                {
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                        int hashCode = 0;
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                        unchecked {
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                                hashCode += 1000000007 * target.GetHashCode();
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                                hashCode += 1000000033 * identifier.GetHashCode();
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                                hashCode += 1000000087 * typeArguments.GetHashCode();
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                                hashCode += 1000000021 * (int)lookupMode;
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                        }
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                        return hashCode;
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                }
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                bool ISupportsInterning.EqualsForInterning(ISupportsInterning other)
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                {
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                        MemberTypeOrNamespaceReference o = other as MemberTypeOrNamespaceReference;
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                        return o != null && this.target == o.target
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                                && this.identifier == o.identifier && this.typeArguments == o.typeArguments
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                                && this.lookupMode == o.lookupMode;
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                }
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        }
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}