1 | // Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team |
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2 | // |
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3 | // Permission is hereby granted, free of charge, to any person obtaining a copy of this |
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4 | // software and associated documentation files (the "Software"), to deal in the Software |
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5 | // without restriction, including without limitation the rights to use, copy, modify, merge, |
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6 | // publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons |
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7 | // to whom the Software is furnished to do so, subject to the following conditions: |
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8 | // |
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9 | // The above copyright notice and this permission notice shall be included in all copies or |
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10 | // substantial portions of the Software. |
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11 | // |
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12 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, |
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13 | // INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR |
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14 | // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE |
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15 | // FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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16 | // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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17 | // DEALINGS IN THE SOFTWARE. |
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18 | |
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19 | using System; |
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20 | using System.Collections.Generic; |
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21 | using ICSharpCode.NRefactory.TypeSystem.Implementation; |
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22 | |
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23 | namespace ICSharpCode.NRefactory.TypeSystem |
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24 | { |
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25 | public sealed class PointerType : TypeWithElementType |
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26 | { |
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27 | public PointerType(IType elementType) : base(elementType) |
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28 | { |
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29 | } |
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30 | |
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31 | public override TypeKind Kind { |
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32 | get { return TypeKind.Pointer; } |
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33 | } |
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34 | |
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35 | public override string NameSuffix { |
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36 | get { |
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37 | return "*"; |
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38 | } |
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39 | } |
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40 | |
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41 | public override bool? IsReferenceType { |
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42 | get { return null; } |
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43 | } |
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44 | |
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45 | public override int GetHashCode() |
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46 | { |
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47 | return elementType.GetHashCode() ^ 91725811; |
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48 | } |
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49 | |
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50 | public override bool Equals(IType other) |
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51 | { |
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52 | PointerType a = other as PointerType; |
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53 | return a != null && elementType.Equals(a.elementType); |
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54 | } |
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55 | |
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56 | public override IType AcceptVisitor(TypeVisitor visitor) |
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57 | { |
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58 | return visitor.VisitPointerType(this); |
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59 | } |
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60 | |
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61 | public override IType VisitChildren(TypeVisitor visitor) |
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62 | { |
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63 | IType e = elementType.AcceptVisitor(visitor); |
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64 | if (e == elementType) |
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65 | return this; |
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66 | else |
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67 | return new PointerType(e); |
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68 | } |
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69 | |
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70 | public override ITypeReference ToTypeReference() |
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71 | { |
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72 | return new PointerTypeReference(elementType.ToTypeReference()); |
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73 | } |
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74 | } |
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75 | |
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76 | [Serializable] |
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77 | public sealed class PointerTypeReference : ITypeReference, ISupportsInterning |
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78 | { |
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79 | readonly ITypeReference elementType; |
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80 | |
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81 | public PointerTypeReference(ITypeReference elementType) |
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82 | { |
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83 | if (elementType == null) |
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84 | throw new ArgumentNullException("elementType"); |
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85 | this.elementType = elementType; |
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86 | } |
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87 | |
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88 | public ITypeReference ElementType { |
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89 | get { return elementType; } |
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90 | } |
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91 | |
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92 | public IType Resolve(ITypeResolveContext context) |
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93 | { |
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94 | return new PointerType(elementType.Resolve(context)); |
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95 | } |
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96 | |
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97 | public override string ToString() |
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98 | { |
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99 | return elementType.ToString() + "*"; |
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100 | } |
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101 | |
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102 | int ISupportsInterning.GetHashCodeForInterning() |
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103 | { |
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104 | return elementType.GetHashCode() ^ 91725812; |
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105 | } |
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106 | |
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107 | bool ISupportsInterning.EqualsForInterning(ISupportsInterning other) |
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108 | { |
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109 | PointerTypeReference o = other as PointerTypeReference; |
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110 | return o != null && this.elementType == o.elementType; |
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111 | } |
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112 | } |
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113 | } |
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