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source: branches/CodeEditor/HeuristicLab.ExtLibs/HeuristicLab.NRefactory/5.5.0/NRefactory-5.5.0/TypeSystem/ByReferenceType.cs @ 11700

Last change on this file since 11700 was 11700, checked in by jkarder, 9 years ago

#2077: created branch and added first version

File size: 3.2 KB
Line 
1// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
2//
3// Permission is hereby granted, free of charge, to any person obtaining a copy of this
4// software and associated documentation files (the "Software"), to deal in the Software
5// without restriction, including without limitation the rights to use, copy, modify, merge,
6// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
7// to whom the Software is furnished to do so, subject to the following conditions:
8//
9// The above copyright notice and this permission notice shall be included in all copies or
10// substantial portions of the Software.
11//
12// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
13// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
14// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
15// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
16// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
17// DEALINGS IN THE SOFTWARE.
18
19using System;
20using ICSharpCode.NRefactory.TypeSystem.Implementation;
21
22namespace ICSharpCode.NRefactory.TypeSystem
23{
24  public sealed class ByReferenceType : TypeWithElementType
25  {
26    public ByReferenceType(IType elementType) : base(elementType)
27    {
28    }
29   
30    public override TypeKind Kind {
31      get { return TypeKind.ByReference; }
32    }
33   
34    public override string NameSuffix {
35      get {
36        return "&";
37      }
38    }
39   
40    public override bool? IsReferenceType {
41      get { return null; }
42    }
43   
44    public override int GetHashCode()
45    {
46      return elementType.GetHashCode() ^ 91725813;
47    }
48   
49    public override bool Equals(IType other)
50    {
51      ByReferenceType a = other as ByReferenceType;
52      return a != null && elementType.Equals(a.elementType);
53    }
54   
55    public override IType AcceptVisitor(TypeVisitor visitor)
56    {
57      return visitor.VisitByReferenceType(this);
58    }
59   
60    public override IType VisitChildren(TypeVisitor visitor)
61    {
62      IType e = elementType.AcceptVisitor(visitor);
63      if (e == elementType)
64        return this;
65      else
66        return new ByReferenceType(e);
67    }
68   
69    public override ITypeReference ToTypeReference()
70    {
71      return new ByReferenceTypeReference(elementType.ToTypeReference());
72    }
73  }
74 
75  [Serializable]
76  public sealed class ByReferenceTypeReference : ITypeReference, ISupportsInterning
77  {
78    readonly ITypeReference elementType;
79   
80    public ByReferenceTypeReference(ITypeReference elementType)
81    {
82      if (elementType == null)
83        throw new ArgumentNullException("elementType");
84      this.elementType = elementType;
85    }
86   
87    public ITypeReference ElementType {
88      get { return elementType; }
89    }
90   
91    public IType Resolve(ITypeResolveContext context)
92    {
93      return new ByReferenceType(elementType.Resolve(context));
94    }
95   
96    public override string ToString()
97    {
98      return elementType.ToString() + "&";
99    }
100   
101    int ISupportsInterning.GetHashCodeForInterning()
102    {
103      return elementType.GetHashCode() ^ 91725814;
104    }
105   
106    bool ISupportsInterning.EqualsForInterning(ISupportsInterning other)
107    {
108      ByReferenceTypeReference brt = other as ByReferenceTypeReference;
109      return brt != null && this.elementType == brt.elementType;
110    }
111  }
112}
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