1 | // |
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2 | // typespec.cs: Type specification |
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3 | // |
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4 | // Authors: Marek Safar (marek.safar@gmail.com) |
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5 | // |
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6 | // Dual licensed under the terms of the MIT X11 or GNU GPL |
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7 | // |
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8 | // Copyright 2010 Novell, Inc |
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9 | // Copyright 2011 Xamarin, Inc (http://www.xamarin.com) |
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10 | // |
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11 | |
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12 | using System; |
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13 | using System.Collections.Generic; |
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14 | using System.Text; |
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15 | using System.Linq; |
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16 | |
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17 | #if STATIC |
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18 | using MetaType = IKVM.Reflection.Type; |
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19 | using IKVM.Reflection; |
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20 | #else |
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21 | using MetaType = System.Type; |
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22 | using System.Reflection; |
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23 | #endif |
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24 | |
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25 | namespace Mono.CSharp |
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26 | { |
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27 | // |
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28 | // Inflated or non-inflated representation of any type. |
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29 | // |
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30 | public class TypeSpec : MemberSpec |
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31 | { |
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32 | protected MetaType info; |
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33 | protected MemberCache cache; |
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34 | protected IList<TypeSpec> ifaces; |
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35 | TypeSpec base_type; |
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36 | |
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37 | Dictionary<TypeSpec[], InflatedTypeSpec> inflated_instances; |
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38 | |
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39 | public static readonly TypeSpec[] EmptyTypes = new TypeSpec[0]; |
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40 | |
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41 | #if !STATIC |
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42 | // Reflection Emit hacking |
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43 | static readonly Type TypeBuilder; |
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44 | static readonly Type GenericTypeBuilder; |
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45 | |
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46 | static TypeSpec () |
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47 | { |
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48 | var assembly = typeof (object).Assembly; |
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49 | TypeBuilder = assembly.GetType ("System.Reflection.Emit.TypeBuilder"); |
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50 | GenericTypeBuilder = assembly.GetType ("System.Reflection.MonoGenericClass"); |
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51 | if (GenericTypeBuilder == null) |
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52 | GenericTypeBuilder = assembly.GetType ("System.Reflection.Emit.TypeBuilderInstantiation"); |
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53 | } |
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54 | #endif |
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55 | |
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56 | public TypeSpec (MemberKind kind, TypeSpec declaringType, ITypeDefinition definition, MetaType info, Modifiers modifiers) |
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57 | : base (kind, declaringType, definition, modifiers) |
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58 | { |
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59 | this.declaringType = declaringType; |
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60 | this.info = info; |
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61 | |
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62 | if (definition != null && definition.TypeParametersCount > 0) |
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63 | state |= StateFlags.IsGeneric; |
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64 | } |
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65 | |
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66 | #region Properties |
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67 | |
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68 | public override int Arity { |
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69 | get { |
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70 | return MemberDefinition.TypeParametersCount; |
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71 | } |
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72 | } |
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73 | |
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74 | public virtual TypeSpec BaseType { |
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75 | get { |
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76 | return base_type; |
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77 | } |
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78 | set { |
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79 | base_type = value; |
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80 | } |
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81 | } |
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82 | |
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83 | public virtual BuiltinTypeSpec.Type BuiltinType { |
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84 | get { |
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85 | return BuiltinTypeSpec.Type.None; |
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86 | } |
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87 | } |
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88 | |
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89 | public bool HasDynamicElement { |
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90 | get { |
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91 | return (state & StateFlags.HasDynamicElement) != 0; |
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92 | } |
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93 | } |
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94 | |
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95 | // |
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96 | // Returns a list of all interfaces including |
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97 | // interfaces from base type or base interfaces |
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98 | // |
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99 | public virtual IList<TypeSpec> Interfaces { |
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100 | get { |
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101 | if ((state & StateFlags.InterfacesImported) == 0) { |
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102 | state |= StateFlags.InterfacesImported; |
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103 | |
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104 | // |
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105 | // Delay interfaces expansion to save memory and once all |
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106 | // base types has been imported to avoid problems where |
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107 | // interface references type before its base was imported |
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108 | // |
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109 | var imported = MemberDefinition as ImportedTypeDefinition; |
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110 | if (imported != null && Kind != MemberKind.MissingType) |
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111 | imported.DefineInterfaces (this); |
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112 | |
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113 | } |
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114 | |
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115 | return ifaces; |
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116 | } |
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117 | set { |
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118 | ifaces = value; |
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119 | } |
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120 | } |
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121 | |
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122 | public bool IsArray { |
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123 | get { |
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124 | return Kind == MemberKind.ArrayType; |
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125 | } |
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126 | } |
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127 | |
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128 | public bool IsAttribute { |
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129 | get { |
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130 | if (!IsClass) |
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131 | return false; |
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132 | |
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133 | var type = this; |
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134 | do { |
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135 | if (type.BuiltinType == BuiltinTypeSpec.Type.Attribute) |
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136 | return true; |
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137 | |
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138 | if (type.IsGeneric) |
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139 | return false; |
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140 | |
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141 | type = type.base_type; |
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142 | } while (type != null); |
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143 | |
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144 | return false; |
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145 | } |
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146 | } |
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147 | |
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148 | public bool IsInterface { |
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149 | get { |
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150 | return Kind == MemberKind.Interface; |
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151 | } |
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152 | } |
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153 | |
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154 | public bool IsClass { |
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155 | get { |
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156 | return Kind == MemberKind.Class; |
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157 | } |
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158 | } |
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159 | |
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160 | public bool IsConstantCompatible { |
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161 | get { |
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162 | if ((Kind & (MemberKind.Enum | MemberKind.Class | MemberKind.Interface | MemberKind.Delegate | MemberKind.ArrayType)) != 0) |
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163 | return true; |
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164 | |
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165 | switch (BuiltinType) { |
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166 | case BuiltinTypeSpec.Type.Int: |
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167 | case BuiltinTypeSpec.Type.UInt: |
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168 | case BuiltinTypeSpec.Type.Long: |
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169 | case BuiltinTypeSpec.Type.ULong: |
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170 | case BuiltinTypeSpec.Type.Float: |
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171 | case BuiltinTypeSpec.Type.Double: |
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172 | case BuiltinTypeSpec.Type.Char: |
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173 | case BuiltinTypeSpec.Type.Short: |
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174 | case BuiltinTypeSpec.Type.Decimal: |
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175 | case BuiltinTypeSpec.Type.Bool: |
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176 | case BuiltinTypeSpec.Type.SByte: |
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177 | case BuiltinTypeSpec.Type.Byte: |
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178 | case BuiltinTypeSpec.Type.UShort: |
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179 | case BuiltinTypeSpec.Type.Dynamic: |
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180 | return true; |
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181 | } |
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182 | |
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183 | return false; |
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184 | } |
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185 | } |
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186 | |
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187 | public bool IsDelegate { |
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188 | get { |
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189 | return Kind == MemberKind.Delegate; |
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190 | } |
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191 | } |
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192 | |
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193 | // |
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194 | // Returns true for instances of Expression<T> |
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195 | // |
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196 | public virtual bool IsExpressionTreeType { |
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197 | get { |
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198 | return false; |
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199 | } |
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200 | set { |
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201 | state = value ? state | StateFlags.InflatedExpressionType : state & ~StateFlags.InflatedExpressionType; |
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202 | } |
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203 | } |
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204 | |
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205 | public bool IsEnum { |
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206 | get { |
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207 | return Kind == MemberKind.Enum; |
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208 | } |
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209 | } |
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210 | |
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211 | // |
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212 | // Returns true for instances of IList<T>, IEnumerable<T>, ICollection<T> |
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213 | // |
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214 | public virtual bool IsArrayGenericInterface { |
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215 | get { |
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216 | return false; |
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217 | } |
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218 | set { |
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219 | state = value ? state | StateFlags.GenericIterateInterface : state & ~StateFlags.GenericIterateInterface; |
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220 | } |
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221 | } |
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222 | |
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223 | // |
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224 | // Returns true for instances of System.Threading.Tasks.Task<T> |
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225 | // |
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226 | public virtual bool IsGenericTask { |
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227 | get { |
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228 | return false; |
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229 | } |
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230 | set { |
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231 | state = value ? state | StateFlags.GenericTask : state & ~StateFlags.GenericTask; |
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232 | } |
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233 | } |
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234 | |
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235 | // TODO: Should probably do |
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236 | // IsGenericType -- recursive |
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237 | // HasTypeParameter -- non-recursive |
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238 | public bool IsGenericOrParentIsGeneric { |
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239 | get { |
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240 | var ts = this; |
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241 | do { |
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242 | if (ts.IsGeneric) |
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243 | return true; |
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244 | ts = ts.declaringType; |
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245 | } while (ts != null); |
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246 | |
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247 | return false; |
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248 | } |
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249 | } |
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250 | |
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251 | public bool IsGenericParameter { |
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252 | get { |
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253 | return Kind == MemberKind.TypeParameter; |
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254 | } |
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255 | } |
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256 | |
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257 | // |
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258 | // Returns true for instances of Nullable<T> |
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259 | // |
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260 | public virtual bool IsNullableType { |
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261 | get { |
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262 | return false; |
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263 | } |
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264 | set { |
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265 | state = value ? state | StateFlags.InflatedNullableType : state & ~StateFlags.InflatedNullableType; |
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266 | } |
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267 | } |
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268 | |
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269 | public bool IsNested { |
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270 | get { return declaringType != null && Kind != MemberKind.TypeParameter; } |
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271 | } |
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272 | |
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273 | public bool IsPointer { |
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274 | get { |
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275 | return Kind == MemberKind.PointerType; |
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276 | } |
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277 | } |
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278 | |
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279 | public bool IsSealed { |
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280 | get { return (Modifiers & Modifiers.SEALED) != 0; } |
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281 | } |
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282 | |
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283 | public bool IsSpecialRuntimeType { |
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284 | get { |
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285 | return (state & StateFlags.SpecialRuntimeType) != 0; |
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286 | } |
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287 | set { |
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288 | state = value ? state | StateFlags.SpecialRuntimeType : state & ~StateFlags.SpecialRuntimeType; |
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289 | } |
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290 | } |
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291 | |
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292 | public bool IsStruct { |
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293 | get { |
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294 | return Kind == MemberKind.Struct; |
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295 | } |
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296 | } |
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297 | |
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298 | public bool IsStructOrEnum { |
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299 | get { |
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300 | return (Kind & (MemberKind.Struct | MemberKind.Enum)) != 0; |
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301 | } |
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302 | } |
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303 | |
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304 | public bool IsTypeBuilder { |
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305 | get { |
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306 | #if STATIC |
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307 | return true; |
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308 | #else |
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309 | var meta = GetMetaInfo().GetType (); |
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310 | return meta == TypeBuilder || meta == GenericTypeBuilder; |
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311 | #endif |
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312 | } |
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313 | } |
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314 | |
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315 | // |
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316 | // Whether a type is unmanaged. This is used by the unsafe code |
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317 | // |
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318 | public bool IsUnmanaged { |
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319 | get { |
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320 | if (IsPointer) |
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321 | return ((ElementTypeSpec) this).Element.IsUnmanaged; |
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322 | |
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323 | var ds = MemberDefinition as TypeDefinition; |
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324 | if (ds != null) |
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325 | return ds.IsUnmanagedType (); |
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326 | |
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327 | if (Kind == MemberKind.Void) |
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328 | return true; |
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329 | |
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330 | if (Kind == MemberKind.TypeParameter) |
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331 | return false; |
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332 | |
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333 | if (IsNested && DeclaringType.IsGenericOrParentIsGeneric) |
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334 | return false; |
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335 | |
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336 | return IsValueType (this); |
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337 | } |
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338 | } |
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339 | |
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340 | // |
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341 | // A cache of all type members (including nested types) |
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342 | // |
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343 | public MemberCache MemberCache { |
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344 | get { |
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345 | if (cache == null || (state & StateFlags.PendingMemberCacheMembers) != 0) |
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346 | InitializeMemberCache (false); |
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347 | |
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348 | return cache; |
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349 | } |
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350 | set { |
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351 | if (cache != null) |
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352 | throw new InternalErrorException ("Membercache reset"); |
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353 | |
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354 | cache = value; |
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355 | } |
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356 | } |
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357 | |
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358 | public MemberCache MemberCacheTypes { |
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359 | get { |
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360 | if (cache == null) |
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361 | InitializeMemberCache (true); |
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362 | |
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363 | return cache; |
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364 | } |
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365 | } |
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366 | |
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367 | public new ITypeDefinition MemberDefinition { |
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368 | get { |
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369 | return (ITypeDefinition) definition; |
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370 | } |
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371 | } |
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372 | |
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373 | // TODO: Wouldn't be better to rely on cast to InflatedTypeSpec and |
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374 | // remove the property, YES IT WOULD !!! |
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375 | public virtual TypeSpec[] TypeArguments { |
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376 | get { return TypeSpec.EmptyTypes; } |
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377 | } |
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378 | |
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379 | #endregion |
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380 | |
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381 | public virtual bool AddInterface (TypeSpec iface) |
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382 | { |
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383 | if ((state & StateFlags.InterfacesExpanded) != 0) |
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384 | throw new InternalErrorException ("Modifying expanded interface list"); |
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385 | |
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386 | if (ifaces == null) { |
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387 | ifaces = new List<TypeSpec> { iface }; |
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388 | return true; |
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389 | } |
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390 | |
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391 | if (!ifaces.Contains (iface)) { |
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392 | ifaces.Add (iface); |
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393 | return true; |
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394 | } |
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395 | |
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396 | return false; |
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397 | } |
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398 | |
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399 | // |
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400 | // Special version used during type definition |
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401 | // |
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402 | public bool AddInterfaceDefined (TypeSpec iface) |
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403 | { |
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404 | if (!AddInterface (iface)) |
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405 | return false; |
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406 | |
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407 | // |
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408 | // We can get into a situation where a type is inflated before |
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409 | // its interfaces are resoved. Consider this situation |
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410 | // |
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411 | // class A<T> : X<A<int>>, IFoo {} |
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412 | // |
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413 | // When resolving base class of X`1 we inflate context type A`1 |
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414 | // All this happens before we even hit IFoo resolve. Without |
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415 | // additional expansion any inside usage of A<T> would miss IFoo |
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416 | // interface because it comes from early inflated A`1 definition. |
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417 | // |
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418 | if (inflated_instances != null) { |
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419 | // |
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420 | // Inflate only existing instances not any new instances added |
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421 | // during AddInterface |
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422 | // |
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423 | var inflated_existing = inflated_instances.Values.ToArray (); |
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424 | foreach (var inflated in inflated_existing) { |
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425 | inflated.AddInterface (iface); |
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426 | } |
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427 | } |
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428 | |
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429 | return true; |
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430 | } |
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431 | |
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432 | // |
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433 | // Returns all type arguments, usefull for nested types |
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434 | // |
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435 | public static TypeSpec[] GetAllTypeArguments (TypeSpec type) |
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436 | { |
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437 | IList<TypeSpec> targs = TypeSpec.EmptyTypes; |
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438 | |
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439 | do { |
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440 | if (type.Arity > 0) { |
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441 | if (targs.Count == 0) { |
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442 | targs = type.TypeArguments; |
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443 | } else { |
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444 | var list = targs as List<TypeSpec> ?? new List<TypeSpec> (targs); |
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445 | list.AddRange (type.TypeArguments); |
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446 | targs = list; |
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447 | } |
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448 | } |
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449 | |
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450 | type = type.declaringType; |
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451 | } while (type != null); |
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452 | |
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453 | return targs as TypeSpec[] ?? ((List<TypeSpec>) targs).ToArray (); |
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454 | } |
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455 | |
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456 | public AttributeUsageAttribute GetAttributeUsage (PredefinedAttribute pa) |
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457 | { |
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458 | if (Kind != MemberKind.Class) |
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459 | throw new InternalErrorException (); |
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460 | |
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461 | if (!pa.IsDefined) |
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462 | return Attribute.DefaultUsageAttribute; |
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463 | |
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464 | AttributeUsageAttribute aua = null; |
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465 | var type = this; |
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466 | while (type != null) { |
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467 | aua = type.MemberDefinition.GetAttributeUsage (pa); |
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468 | if (aua != null) |
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469 | break; |
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470 | |
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471 | type = type.BaseType; |
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472 | } |
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473 | |
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474 | return aua; |
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475 | } |
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476 | |
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477 | // |
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478 | // Return metadata information used during emit to describe the type |
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479 | // |
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480 | public virtual MetaType GetMetaInfo () |
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481 | { |
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482 | return info; |
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483 | } |
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484 | |
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485 | public virtual TypeSpec GetDefinition () |
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486 | { |
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487 | return this; |
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488 | } |
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489 | |
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490 | // |
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491 | // Text representation of type used by documentation writer |
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492 | // |
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493 | public override string GetSignatureForDocumentation () |
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494 | { |
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495 | StringBuilder sb = new StringBuilder (); |
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496 | if (IsNested) { |
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497 | sb.Append (DeclaringType.GetSignatureForDocumentation ()); |
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498 | } else { |
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499 | sb.Append (MemberDefinition.Namespace); |
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500 | } |
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501 | |
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502 | if (sb.Length != 0) |
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503 | sb.Append ("."); |
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504 | |
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505 | sb.Append (Name); |
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506 | if (Arity > 0) { |
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507 | if (this is InflatedTypeSpec) { |
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508 | sb.Append ("{"); |
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509 | for (int i = 0; i < Arity; ++i) { |
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510 | if (i > 0) |
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511 | sb.Append (","); |
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512 | |
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513 | sb.Append (TypeArguments[i].GetSignatureForDocumentation ()); |
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514 | } |
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515 | sb.Append ("}"); |
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516 | } else { |
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517 | sb.Append ("`"); |
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518 | sb.Append (Arity.ToString ()); |
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519 | } |
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520 | } |
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521 | |
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522 | return sb.ToString (); |
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523 | } |
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524 | |
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525 | public string GetExplicitNameSignatureForDocumentation () |
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526 | { |
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527 | StringBuilder sb = new StringBuilder (); |
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528 | if (IsNested) { |
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529 | sb.Append (DeclaringType.GetExplicitNameSignatureForDocumentation ()); |
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530 | } else if (MemberDefinition.Namespace != null) { |
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531 | sb.Append (MemberDefinition.Namespace.Replace ('.', '#')); |
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532 | } |
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533 | |
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534 | if (sb.Length != 0) |
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535 | sb.Append ("#"); |
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536 | |
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537 | sb.Append (Name); |
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538 | if (Arity > 0) { |
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539 | sb.Append ("{"); |
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540 | for (int i = 0; i < Arity; ++i) { |
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541 | if (i > 0) |
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542 | sb.Append (","); |
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543 | |
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544 | sb.Append (TypeArguments[i].GetExplicitNameSignatureForDocumentation ()); |
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545 | } |
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546 | sb.Append ("}"); |
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547 | } |
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548 | |
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549 | return sb.ToString (); |
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550 | } |
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551 | |
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552 | public override string GetSignatureForError () |
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553 | { |
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554 | string s; |
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555 | |
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556 | if (IsNested) { |
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557 | s = DeclaringType.GetSignatureForError (); |
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558 | } else if (MemberDefinition is AnonymousTypeClass) { |
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559 | return ((AnonymousTypeClass) MemberDefinition).GetSignatureForError (); |
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560 | } else { |
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561 | s = MemberDefinition.Namespace; |
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562 | } |
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563 | |
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564 | if (!string.IsNullOrEmpty (s)) |
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565 | s += "."; |
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566 | |
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567 | return s + Name + GetTypeNameSignature (); |
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568 | } |
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569 | |
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570 | public string GetSignatureForErrorIncludingAssemblyName () |
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571 | { |
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572 | return string.Format ("{0} [{1}]", GetSignatureForError (), MemberDefinition.DeclaringAssembly.FullName); |
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573 | } |
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574 | |
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575 | protected virtual string GetTypeNameSignature () |
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576 | { |
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577 | if (!IsGeneric) |
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578 | return null; |
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579 | |
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580 | return "<" + TypeManager.CSharpName (MemberDefinition.TypeParameters) + ">"; |
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581 | } |
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582 | |
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583 | public bool ImplementsInterface (TypeSpec iface, bool variantly) |
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584 | { |
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585 | var ifaces = Interfaces; |
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586 | if (ifaces != null) { |
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587 | for (int i = 0; i < ifaces.Count; ++i) { |
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588 | if (TypeSpecComparer.IsEqual (ifaces[i], iface)) |
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589 | return true; |
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590 | |
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591 | if (variantly && TypeSpecComparer.Variant.IsEqual (ifaces[i], iface)) |
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592 | return true; |
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593 | } |
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594 | } |
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595 | |
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596 | return false; |
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597 | } |
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598 | |
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599 | protected virtual void InitializeMemberCache (bool onlyTypes) |
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600 | { |
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601 | try { |
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602 | MemberDefinition.LoadMembers (this, onlyTypes, ref cache); |
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603 | } catch (Exception e) { |
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604 | throw new InternalErrorException (e, "Unexpected error when loading type `{0}'", GetSignatureForError ()); |
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605 | } |
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606 | |
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607 | if (onlyTypes) |
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608 | state |= StateFlags.PendingMemberCacheMembers; |
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609 | else |
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610 | state &= ~StateFlags.PendingMemberCacheMembers; |
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611 | } |
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612 | |
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613 | // |
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614 | // Is @baseClass base implementation of @type. With enabled @dynamicIsEqual the slower |
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615 | // comparison is used to hide differences between `object' and `dynamic' for generic |
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616 | // types. Should not be used for comparisons where G<object> != G<dynamic> |
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617 | // |
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618 | public static bool IsBaseClass (TypeSpec type, TypeSpec baseClass, bool dynamicIsObject) |
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619 | { |
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620 | if (dynamicIsObject && baseClass.IsGeneric) { |
---|
621 | // |
---|
622 | // Returns true for a hierarchies like this when passing baseClass of A<dynamic> |
---|
623 | // |
---|
624 | // class B : A<object> {} |
---|
625 | // |
---|
626 | type = type.BaseType; |
---|
627 | while (type != null) { |
---|
628 | if (TypeSpecComparer.IsEqual (type, baseClass)) |
---|
629 | return true; |
---|
630 | |
---|
631 | type = type.BaseType; |
---|
632 | } |
---|
633 | |
---|
634 | return false; |
---|
635 | } |
---|
636 | |
---|
637 | while (type != null) { |
---|
638 | type = type.BaseType; |
---|
639 | if (type == baseClass) |
---|
640 | return true; |
---|
641 | } |
---|
642 | |
---|
643 | return false; |
---|
644 | } |
---|
645 | |
---|
646 | public static bool IsReferenceType (TypeSpec t) |
---|
647 | { |
---|
648 | switch (t.Kind) { |
---|
649 | case MemberKind.TypeParameter: |
---|
650 | return ((TypeParameterSpec) t).IsReferenceType; |
---|
651 | case MemberKind.Struct: |
---|
652 | case MemberKind.Enum: |
---|
653 | case MemberKind.Void: |
---|
654 | case MemberKind.PointerType: |
---|
655 | return false; |
---|
656 | case MemberKind.InternalCompilerType: |
---|
657 | // |
---|
658 | // Null is considered to be a reference type |
---|
659 | // |
---|
660 | return t == InternalType.NullLiteral || t.BuiltinType == BuiltinTypeSpec.Type.Dynamic; |
---|
661 | default: |
---|
662 | return true; |
---|
663 | } |
---|
664 | } |
---|
665 | |
---|
666 | public static bool IsNonNullableValueType (TypeSpec t) |
---|
667 | { |
---|
668 | switch (t.Kind) { |
---|
669 | case MemberKind.TypeParameter: |
---|
670 | return ((TypeParameterSpec) t).IsValueType; |
---|
671 | case MemberKind.Struct: |
---|
672 | return !t.IsNullableType; |
---|
673 | case MemberKind.Enum: |
---|
674 | return true; |
---|
675 | default: |
---|
676 | return false; |
---|
677 | } |
---|
678 | } |
---|
679 | |
---|
680 | public static bool IsValueType (TypeSpec t) |
---|
681 | { |
---|
682 | switch (t.Kind) { |
---|
683 | case MemberKind.TypeParameter: |
---|
684 | return ((TypeParameterSpec) t).IsValueType; |
---|
685 | case MemberKind.Struct: |
---|
686 | case MemberKind.Enum: |
---|
687 | return true; |
---|
688 | default: |
---|
689 | return false; |
---|
690 | } |
---|
691 | } |
---|
692 | |
---|
693 | public override MemberSpec InflateMember (TypeParameterInflator inflator) |
---|
694 | { |
---|
695 | var targs = IsGeneric ? MemberDefinition.TypeParameters : TypeSpec.EmptyTypes; |
---|
696 | |
---|
697 | // |
---|
698 | // When inflating nested type from inside the type instance will be same |
---|
699 | // because type parameters are same for all nested types |
---|
700 | // |
---|
701 | if (DeclaringType == inflator.TypeInstance) { |
---|
702 | return MakeGenericType (inflator.Context, targs); |
---|
703 | } |
---|
704 | |
---|
705 | return new InflatedTypeSpec (inflator.Context, this, inflator.TypeInstance, targs); |
---|
706 | } |
---|
707 | |
---|
708 | // |
---|
709 | // Inflates current type using specific type arguments |
---|
710 | // |
---|
711 | public InflatedTypeSpec MakeGenericType (IModuleContext context, TypeSpec[] targs) |
---|
712 | { |
---|
713 | if (targs.Length == 0 && !IsNested) |
---|
714 | throw new ArgumentException ("Empty type arguments for type " + GetSignatureForError ()); |
---|
715 | |
---|
716 | InflatedTypeSpec instance; |
---|
717 | |
---|
718 | if (inflated_instances == null) { |
---|
719 | inflated_instances = new Dictionary<TypeSpec[], InflatedTypeSpec> (TypeSpecComparer.Default); |
---|
720 | |
---|
721 | if (IsNested) { |
---|
722 | instance = this as InflatedTypeSpec; |
---|
723 | if (instance != null) { |
---|
724 | // |
---|
725 | // Nested types could be inflated on already inflated instances |
---|
726 | // Caching this type ensured we are using same instance for |
---|
727 | // inside/outside inflation using local type parameters |
---|
728 | // |
---|
729 | inflated_instances.Add (TypeArguments, instance); |
---|
730 | } |
---|
731 | } |
---|
732 | } |
---|
733 | |
---|
734 | if (!inflated_instances.TryGetValue (targs, out instance)) { |
---|
735 | if (GetDefinition () != this && !IsNested) |
---|
736 | throw new InternalErrorException ("`{0}' must be type definition or nested non-inflated type to MakeGenericType", |
---|
737 | GetSignatureForError ()); |
---|
738 | |
---|
739 | instance = new InflatedTypeSpec (context, this, declaringType, targs); |
---|
740 | inflated_instances.Add (targs, instance); |
---|
741 | } |
---|
742 | |
---|
743 | return instance; |
---|
744 | } |
---|
745 | |
---|
746 | public virtual TypeSpec Mutate (TypeParameterMutator mutator) |
---|
747 | { |
---|
748 | return this; |
---|
749 | } |
---|
750 | |
---|
751 | public override List<MissingTypeSpecReference> ResolveMissingDependencies (MemberSpec caller) |
---|
752 | { |
---|
753 | List<MissingTypeSpecReference> missing = null; |
---|
754 | |
---|
755 | if (Kind == MemberKind.MissingType) { |
---|
756 | missing = new List<MissingTypeSpecReference> (); |
---|
757 | missing.Add (new MissingTypeSpecReference (this, caller)); |
---|
758 | return missing; |
---|
759 | } |
---|
760 | |
---|
761 | foreach (var targ in TypeArguments) { |
---|
762 | if (targ.Kind == MemberKind.MissingType) { |
---|
763 | if (missing == null) |
---|
764 | missing = new List<MissingTypeSpecReference> (); |
---|
765 | |
---|
766 | missing.Add (new MissingTypeSpecReference (targ, caller)); |
---|
767 | } |
---|
768 | } |
---|
769 | |
---|
770 | if (Interfaces != null) { |
---|
771 | foreach (var iface in Interfaces) { |
---|
772 | if (iface.Kind == MemberKind.MissingType) { |
---|
773 | if (missing == null) |
---|
774 | missing = new List<MissingTypeSpecReference> (); |
---|
775 | |
---|
776 | missing.Add (new MissingTypeSpecReference (iface, caller)); |
---|
777 | } |
---|
778 | } |
---|
779 | } |
---|
780 | |
---|
781 | if (MemberDefinition.TypeParametersCount > 0) { |
---|
782 | foreach (var tp in MemberDefinition.TypeParameters) { |
---|
783 | var tp_missing = tp.GetMissingDependencies (this); |
---|
784 | if (tp_missing != null) { |
---|
785 | if (missing == null) |
---|
786 | missing = new List<MissingTypeSpecReference> (); |
---|
787 | |
---|
788 | missing.AddRange (tp_missing); |
---|
789 | } |
---|
790 | } |
---|
791 | } |
---|
792 | |
---|
793 | if (missing != null || BaseType == null) |
---|
794 | return missing; |
---|
795 | |
---|
796 | return BaseType.ResolveMissingDependencies (this); |
---|
797 | } |
---|
798 | |
---|
799 | public void SetMetaInfo (MetaType info) |
---|
800 | { |
---|
801 | if (this.info != null) |
---|
802 | throw new InternalErrorException ("MetaInfo reset"); |
---|
803 | |
---|
804 | this.info = info; |
---|
805 | } |
---|
806 | |
---|
807 | public void SetExtensionMethodContainer () |
---|
808 | { |
---|
809 | modifiers |= Modifiers.METHOD_EXTENSION; |
---|
810 | } |
---|
811 | |
---|
812 | public void UpdateInflatedInstancesBaseType () |
---|
813 | { |
---|
814 | // |
---|
815 | // When nested class has a partial part the situation where parent type |
---|
816 | // is inflated before its base type is defined can occur. In such case |
---|
817 | // all inflated (should be only 1) instansted need to be updated |
---|
818 | // |
---|
819 | // partial class A<T> { |
---|
820 | // partial class B : A<int> { } |
---|
821 | // } |
---|
822 | // |
---|
823 | // partial class A<T> : X {} |
---|
824 | // |
---|
825 | if (inflated_instances == null) |
---|
826 | return; |
---|
827 | |
---|
828 | foreach (var inflated in inflated_instances) { |
---|
829 | // |
---|
830 | // Don't need to inflate possible generic type because for now the method |
---|
831 | // is always used from within the nested type |
---|
832 | // |
---|
833 | inflated.Value.BaseType = base_type; |
---|
834 | } |
---|
835 | } |
---|
836 | } |
---|
837 | |
---|
838 | // |
---|
839 | // Special version used for types which must exist in corlib or |
---|
840 | // the compiler cannot work |
---|
841 | // |
---|
842 | public sealed class BuiltinTypeSpec : TypeSpec |
---|
843 | { |
---|
844 | public enum Type |
---|
845 | { |
---|
846 | None = 0, |
---|
847 | |
---|
848 | // Ordered carefully for fast compares |
---|
849 | FirstPrimitive = 1, |
---|
850 | Bool = 1, |
---|
851 | Byte = 2, |
---|
852 | SByte = 3, |
---|
853 | Char = 4, |
---|
854 | Short = 5, |
---|
855 | UShort = 6, |
---|
856 | Int = 7, |
---|
857 | UInt = 8, |
---|
858 | Long = 9, |
---|
859 | ULong = 10, |
---|
860 | Float = 11, |
---|
861 | Double = 12, |
---|
862 | LastPrimitive = 12, |
---|
863 | Decimal = 13, |
---|
864 | |
---|
865 | IntPtr = 14, |
---|
866 | UIntPtr = 15, |
---|
867 | |
---|
868 | Object = 16, |
---|
869 | Dynamic = 17, |
---|
870 | String = 18, |
---|
871 | Type = 19, |
---|
872 | |
---|
873 | ValueType = 20, |
---|
874 | Enum = 21, |
---|
875 | Delegate = 22, |
---|
876 | MulticastDelegate = 23, |
---|
877 | Array = 24, |
---|
878 | |
---|
879 | IEnumerator, |
---|
880 | IEnumerable, |
---|
881 | IDisposable, |
---|
882 | Exception, |
---|
883 | Attribute, |
---|
884 | Other, |
---|
885 | } |
---|
886 | |
---|
887 | readonly Type type; |
---|
888 | readonly string ns; |
---|
889 | readonly string name; |
---|
890 | |
---|
891 | public BuiltinTypeSpec (MemberKind kind, string ns, string name, Type builtinKind) |
---|
892 | : base (kind, null, null, null, Modifiers.PUBLIC) |
---|
893 | { |
---|
894 | this.type = builtinKind; |
---|
895 | this.ns = ns; |
---|
896 | this.name = name; |
---|
897 | } |
---|
898 | |
---|
899 | public BuiltinTypeSpec (string name, Type builtinKind) |
---|
900 | : this (MemberKind.InternalCompilerType, "", name, builtinKind) |
---|
901 | { |
---|
902 | // Make all internal types CLS-compliant, non-obsolete, compact |
---|
903 | state = (state & ~(StateFlags.CLSCompliant_Undetected | StateFlags.Obsolete_Undetected | StateFlags.MissingDependency_Undetected)) | StateFlags.CLSCompliant; |
---|
904 | } |
---|
905 | |
---|
906 | #region Properties |
---|
907 | |
---|
908 | public override int Arity { |
---|
909 | get { |
---|
910 | return 0; |
---|
911 | } |
---|
912 | } |
---|
913 | |
---|
914 | public override BuiltinTypeSpec.Type BuiltinType { |
---|
915 | get { |
---|
916 | return type; |
---|
917 | } |
---|
918 | } |
---|
919 | |
---|
920 | public string FullName { |
---|
921 | get { |
---|
922 | return ns + '.' + name; |
---|
923 | } |
---|
924 | } |
---|
925 | |
---|
926 | public override string Name { |
---|
927 | get { |
---|
928 | return name; |
---|
929 | } |
---|
930 | } |
---|
931 | |
---|
932 | public string Namespace { |
---|
933 | get { |
---|
934 | return ns; |
---|
935 | } |
---|
936 | } |
---|
937 | |
---|
938 | #endregion |
---|
939 | |
---|
940 | public static bool IsPrimitiveType (TypeSpec type) |
---|
941 | { |
---|
942 | return type.BuiltinType >= Type.FirstPrimitive && type.BuiltinType <= Type.LastPrimitive; |
---|
943 | } |
---|
944 | |
---|
945 | public static bool IsPrimitiveTypeOrDecimal (TypeSpec type) |
---|
946 | { |
---|
947 | return type.BuiltinType >= Type.FirstPrimitive && type.BuiltinType <= Type.Decimal; |
---|
948 | } |
---|
949 | |
---|
950 | public override string GetSignatureForError () |
---|
951 | { |
---|
952 | switch (Name) { |
---|
953 | case "Int32": return "int"; |
---|
954 | case "Int64": return "long"; |
---|
955 | case "String": return "string"; |
---|
956 | case "Boolean": return "bool"; |
---|
957 | case "Void": return "void"; |
---|
958 | case "Object": return "object"; |
---|
959 | case "UInt32": return "uint"; |
---|
960 | case "Int16": return "short"; |
---|
961 | case "UInt16": return "ushort"; |
---|
962 | case "UInt64": return "ulong"; |
---|
963 | case "Single": return "float"; |
---|
964 | case "Double": return "double"; |
---|
965 | case "Decimal": return "decimal"; |
---|
966 | case "Char": return "char"; |
---|
967 | case "Byte": return "byte"; |
---|
968 | case "SByte": return "sbyte"; |
---|
969 | } |
---|
970 | |
---|
971 | if (ns.Length == 0) |
---|
972 | return name; |
---|
973 | |
---|
974 | return FullName; |
---|
975 | } |
---|
976 | |
---|
977 | // |
---|
978 | // Returns the size of type if known, otherwise, 0 |
---|
979 | // |
---|
980 | public static int GetSize (TypeSpec type) |
---|
981 | { |
---|
982 | switch (type.BuiltinType) { |
---|
983 | case Type.Int: |
---|
984 | case Type.UInt: |
---|
985 | case Type.Float: |
---|
986 | return 4; |
---|
987 | case Type.Long: |
---|
988 | case Type.ULong: |
---|
989 | case Type.Double: |
---|
990 | return 8; |
---|
991 | case Type.Byte: |
---|
992 | case Type.SByte: |
---|
993 | case Type.Bool: |
---|
994 | return 1; |
---|
995 | case Type.Short: |
---|
996 | case Type.Char: |
---|
997 | case Type.UShort: |
---|
998 | return 2; |
---|
999 | case Type.Decimal: |
---|
1000 | return 16; |
---|
1001 | default: |
---|
1002 | return 0; |
---|
1003 | } |
---|
1004 | } |
---|
1005 | |
---|
1006 | public void SetDefinition (ITypeDefinition td, MetaType type, Modifiers mod) |
---|
1007 | { |
---|
1008 | this.definition = td; |
---|
1009 | this.info = type; |
---|
1010 | this.modifiers |= (mod & ~Modifiers.AccessibilityMask); |
---|
1011 | } |
---|
1012 | |
---|
1013 | public void SetDefinition (TypeSpec ts) |
---|
1014 | { |
---|
1015 | this.definition = ts.MemberDefinition; |
---|
1016 | this.info = ts.GetMetaInfo (); |
---|
1017 | this.BaseType = ts.BaseType; |
---|
1018 | this.Interfaces = ts.Interfaces; |
---|
1019 | this.modifiers = ts.Modifiers; |
---|
1020 | } |
---|
1021 | } |
---|
1022 | |
---|
1023 | // |
---|
1024 | // Various type comparers used by compiler |
---|
1025 | // |
---|
1026 | static class TypeSpecComparer |
---|
1027 | { |
---|
1028 | // |
---|
1029 | // Does strict reference comparion only |
---|
1030 | // |
---|
1031 | public static readonly DefaultImpl Default = new DefaultImpl (); |
---|
1032 | |
---|
1033 | public class DefaultImpl : IEqualityComparer<TypeSpec[]> |
---|
1034 | { |
---|
1035 | #region IEqualityComparer<TypeSpec[]> Members |
---|
1036 | |
---|
1037 | bool IEqualityComparer<TypeSpec[]>.Equals (TypeSpec[] x, TypeSpec[] y) |
---|
1038 | { |
---|
1039 | if (x == y) |
---|
1040 | return true; |
---|
1041 | |
---|
1042 | if (x.Length != y.Length) |
---|
1043 | return false; |
---|
1044 | |
---|
1045 | for (int i = 0; i < x.Length; ++i) |
---|
1046 | if (x[i] != y[i]) |
---|
1047 | return false; |
---|
1048 | |
---|
1049 | return true; |
---|
1050 | } |
---|
1051 | |
---|
1052 | int IEqualityComparer<TypeSpec[]>.GetHashCode (TypeSpec[] obj) |
---|
1053 | { |
---|
1054 | int hash = 0; |
---|
1055 | for (int i = 0; i < obj.Length; ++i) |
---|
1056 | hash = (hash << 5) - hash + obj[i].GetHashCode (); |
---|
1057 | |
---|
1058 | return hash; |
---|
1059 | } |
---|
1060 | |
---|
1061 | #endregion |
---|
1062 | } |
---|
1063 | |
---|
1064 | // |
---|
1065 | // When comparing type signature of overrides or overloads |
---|
1066 | // this version tolerates different MVARs at same position |
---|
1067 | // |
---|
1068 | public static class Override |
---|
1069 | { |
---|
1070 | public static bool IsEqual (TypeSpec a, TypeSpec b) |
---|
1071 | { |
---|
1072 | if (a == b) |
---|
1073 | return true; |
---|
1074 | |
---|
1075 | // |
---|
1076 | // Consider the following example: |
---|
1077 | // |
---|
1078 | // public abstract class A |
---|
1079 | // { |
---|
1080 | // public abstract T Foo<T>(); |
---|
1081 | // } |
---|
1082 | // |
---|
1083 | // public class B : A |
---|
1084 | // { |
---|
1085 | // public override U Foo<T>() { return default (U); } |
---|
1086 | // } |
---|
1087 | // |
---|
1088 | // Here, `T' and `U' are method type parameters from different methods |
---|
1089 | // (A.Foo and B.Foo), so both `==' and Equals() will fail. |
---|
1090 | // |
---|
1091 | // However, since we're determining whether B.Foo() overrides A.Foo(), |
---|
1092 | // we need to do a signature based comparision and consider them equal. |
---|
1093 | // |
---|
1094 | |
---|
1095 | var tp_a = a as TypeParameterSpec; |
---|
1096 | if (tp_a != null) { |
---|
1097 | var tp_b = b as TypeParameterSpec; |
---|
1098 | return tp_b != null && tp_a.IsMethodOwned == tp_b.IsMethodOwned && tp_a.DeclaredPosition == tp_b.DeclaredPosition; |
---|
1099 | } |
---|
1100 | |
---|
1101 | var ac_a = a as ArrayContainer; |
---|
1102 | if (ac_a != null) { |
---|
1103 | var ac_b = b as ArrayContainer; |
---|
1104 | return ac_b != null && ac_a.Rank == ac_b.Rank && IsEqual (ac_a.Element, ac_b.Element); |
---|
1105 | } |
---|
1106 | |
---|
1107 | if (a.BuiltinType == BuiltinTypeSpec.Type.Dynamic || b.BuiltinType == BuiltinTypeSpec.Type.Dynamic) |
---|
1108 | return b.BuiltinType == BuiltinTypeSpec.Type.Object || a.BuiltinType == BuiltinTypeSpec.Type.Object; |
---|
1109 | |
---|
1110 | if (a.MemberDefinition != b.MemberDefinition) |
---|
1111 | return false; |
---|
1112 | |
---|
1113 | do { |
---|
1114 | for (int i = 0; i < a.TypeArguments.Length; ++i) { |
---|
1115 | if (!IsEqual (a.TypeArguments[i], b.TypeArguments[i])) |
---|
1116 | return false; |
---|
1117 | } |
---|
1118 | |
---|
1119 | a = a.DeclaringType; |
---|
1120 | b = b.DeclaringType; |
---|
1121 | } while (a != null); |
---|
1122 | |
---|
1123 | return true; |
---|
1124 | } |
---|
1125 | |
---|
1126 | public static bool IsEqual (TypeSpec[] a, TypeSpec[] b) |
---|
1127 | { |
---|
1128 | if (a == b) |
---|
1129 | return true; |
---|
1130 | |
---|
1131 | if (a.Length != b.Length) |
---|
1132 | return false; |
---|
1133 | |
---|
1134 | for (int i = 0; i < a.Length; ++i) { |
---|
1135 | if (!IsEqual (a[i], b[i])) |
---|
1136 | return false; |
---|
1137 | } |
---|
1138 | |
---|
1139 | return true; |
---|
1140 | } |
---|
1141 | |
---|
1142 | |
---|
1143 | // |
---|
1144 | // Compares unordered arrays |
---|
1145 | // |
---|
1146 | public static bool IsSame (TypeSpec[] a, TypeSpec[] b) |
---|
1147 | { |
---|
1148 | if (a == b) |
---|
1149 | return true; |
---|
1150 | |
---|
1151 | if (a == null || b == null || a.Length != b.Length) |
---|
1152 | return false; |
---|
1153 | |
---|
1154 | for (int ai = 0; ai < a.Length; ++ai) { |
---|
1155 | bool found = false; |
---|
1156 | for (int bi = 0; bi < b.Length; ++bi) { |
---|
1157 | if (IsEqual (a[ai], b[bi])) { |
---|
1158 | found = true; |
---|
1159 | break; |
---|
1160 | } |
---|
1161 | } |
---|
1162 | |
---|
1163 | if (!found) |
---|
1164 | return false; |
---|
1165 | } |
---|
1166 | |
---|
1167 | return true; |
---|
1168 | } |
---|
1169 | |
---|
1170 | public static bool IsEqual (AParametersCollection a, AParametersCollection b) |
---|
1171 | { |
---|
1172 | if (a == b) |
---|
1173 | return true; |
---|
1174 | |
---|
1175 | if (a.Count != b.Count) |
---|
1176 | return false; |
---|
1177 | |
---|
1178 | for (int i = 0; i < a.Count; ++i) { |
---|
1179 | if (!IsEqual (a.Types[i], b.Types[i])) |
---|
1180 | return false; |
---|
1181 | |
---|
1182 | if ((a.FixedParameters[i].ModFlags & Parameter.Modifier.RefOutMask) != (b.FixedParameters[i].ModFlags & Parameter.Modifier.RefOutMask)) |
---|
1183 | return false; |
---|
1184 | } |
---|
1185 | |
---|
1186 | return true; |
---|
1187 | } |
---|
1188 | } |
---|
1189 | |
---|
1190 | // |
---|
1191 | // Type variance equality comparison |
---|
1192 | // |
---|
1193 | public static class Variant |
---|
1194 | { |
---|
1195 | public static bool IsEqual (TypeSpec type1, TypeSpec type2) |
---|
1196 | { |
---|
1197 | if (!type1.IsGeneric || !type2.IsGeneric) |
---|
1198 | return false; |
---|
1199 | |
---|
1200 | var target_type_def = type2.MemberDefinition; |
---|
1201 | if (type1.MemberDefinition != target_type_def) |
---|
1202 | return false; |
---|
1203 | |
---|
1204 | var t1_targs = type1.TypeArguments; |
---|
1205 | var t2_targs = type2.TypeArguments; |
---|
1206 | var targs_definition = target_type_def.TypeParameters; |
---|
1207 | |
---|
1208 | if (!type1.IsInterface && !type1.IsDelegate) { |
---|
1209 | return false; |
---|
1210 | } |
---|
1211 | |
---|
1212 | for (int i = 0; i < targs_definition.Length; ++i) { |
---|
1213 | if (TypeSpecComparer.IsEqual (t1_targs[i], t2_targs[i])) |
---|
1214 | continue; |
---|
1215 | |
---|
1216 | Variance v = targs_definition[i].Variance; |
---|
1217 | if (v == Variance.None) { |
---|
1218 | return false; |
---|
1219 | } |
---|
1220 | |
---|
1221 | if (v == Variance.Covariant) { |
---|
1222 | if (!Convert.ImplicitReferenceConversionExists (t1_targs[i], t2_targs[i])) |
---|
1223 | return false; |
---|
1224 | } else if (!Convert.ImplicitReferenceConversionExists (t2_targs[i], t1_targs[i])) { |
---|
1225 | return false; |
---|
1226 | } |
---|
1227 | } |
---|
1228 | |
---|
1229 | return true; |
---|
1230 | } |
---|
1231 | } |
---|
1232 | |
---|
1233 | // |
---|
1234 | // Checks whether two generic instances may become equal for some |
---|
1235 | // particular instantiation (26.3.1). |
---|
1236 | // |
---|
1237 | public static class Unify |
---|
1238 | { |
---|
1239 | // |
---|
1240 | // Either @a or @b must be generic type |
---|
1241 | // |
---|
1242 | public static bool IsEqual (TypeSpec a, TypeSpec b) |
---|
1243 | { |
---|
1244 | if (a.MemberDefinition != b.MemberDefinition) { |
---|
1245 | var base_ifaces = a.Interfaces; |
---|
1246 | if (base_ifaces != null) { |
---|
1247 | foreach (var base_iface in base_ifaces) { |
---|
1248 | if (base_iface.Arity > 0 && IsEqual (base_iface, b)) |
---|
1249 | return true; |
---|
1250 | } |
---|
1251 | } |
---|
1252 | |
---|
1253 | return false; |
---|
1254 | } |
---|
1255 | |
---|
1256 | var ta = a.TypeArguments; |
---|
1257 | var tb = b.TypeArguments; |
---|
1258 | for (int i = 0; i < ta.Length; i++) { |
---|
1259 | if (!MayBecomeEqualGenericTypes (ta[i], tb[i])) |
---|
1260 | return false; |
---|
1261 | } |
---|
1262 | |
---|
1263 | if (a.IsNested && b.IsNested) |
---|
1264 | return IsEqual (a.DeclaringType, b.DeclaringType); |
---|
1265 | |
---|
1266 | return true; |
---|
1267 | } |
---|
1268 | |
---|
1269 | static bool ContainsTypeParameter (TypeSpec tparam, TypeSpec type) |
---|
1270 | { |
---|
1271 | TypeSpec[] targs = type.TypeArguments; |
---|
1272 | for (int i = 0; i < targs.Length; i++) { |
---|
1273 | if (tparam == targs[i]) |
---|
1274 | return true; |
---|
1275 | |
---|
1276 | if (ContainsTypeParameter (tparam, targs[i])) |
---|
1277 | return true; |
---|
1278 | } |
---|
1279 | |
---|
1280 | return false; |
---|
1281 | } |
---|
1282 | |
---|
1283 | /// <summary> |
---|
1284 | /// Check whether `a' and `b' may become equal generic types. |
---|
1285 | /// The algorithm to do that is a little bit complicated. |
---|
1286 | /// </summary> |
---|
1287 | static bool MayBecomeEqualGenericTypes (TypeSpec a, TypeSpec b) |
---|
1288 | { |
---|
1289 | if (a.IsGenericParameter) { |
---|
1290 | // |
---|
1291 | // If a is an array of a's type, they may never |
---|
1292 | // become equal. |
---|
1293 | // |
---|
1294 | if (b.IsArray) |
---|
1295 | return false; |
---|
1296 | |
---|
1297 | // |
---|
1298 | // If b is a generic parameter or an actual type, |
---|
1299 | // they may become equal: |
---|
1300 | // |
---|
1301 | // class X<T,U> : I<T>, I<U> |
---|
1302 | // class X<T> : I<T>, I<float> |
---|
1303 | // |
---|
1304 | if (b.IsGenericParameter) |
---|
1305 | return a != b && a.DeclaringType == b.DeclaringType; |
---|
1306 | |
---|
1307 | // |
---|
1308 | // We're now comparing a type parameter with a |
---|
1309 | // generic instance. They may become equal unless |
---|
1310 | // the type parameter appears anywhere in the |
---|
1311 | // generic instance: |
---|
1312 | // |
---|
1313 | // class X<T,U> : I<T>, I<X<U>> |
---|
1314 | // -> error because you could instanciate it as |
---|
1315 | // X<X<int>,int> |
---|
1316 | // |
---|
1317 | // class X<T> : I<T>, I<X<T>> -> ok |
---|
1318 | // |
---|
1319 | |
---|
1320 | return !ContainsTypeParameter (a, b); |
---|
1321 | } |
---|
1322 | |
---|
1323 | if (b.IsGenericParameter) |
---|
1324 | return MayBecomeEqualGenericTypes (b, a); |
---|
1325 | |
---|
1326 | // |
---|
1327 | // At this point, neither a nor b are a type parameter. |
---|
1328 | // |
---|
1329 | // If one of them is a generic instance, compare them (if the |
---|
1330 | // other one is not a generic instance, they can never |
---|
1331 | // become equal). |
---|
1332 | // |
---|
1333 | if (TypeManager.IsGenericType (a) || TypeManager.IsGenericType (b)) |
---|
1334 | return IsEqual (a, b); |
---|
1335 | |
---|
1336 | // |
---|
1337 | // If both of them are arrays. |
---|
1338 | // |
---|
1339 | var a_ac = a as ArrayContainer; |
---|
1340 | if (a_ac != null) { |
---|
1341 | var b_ac = b as ArrayContainer; |
---|
1342 | if (b_ac == null || a_ac.Rank != b_ac.Rank) |
---|
1343 | return false; |
---|
1344 | |
---|
1345 | return MayBecomeEqualGenericTypes (a_ac.Element, b_ac.Element); |
---|
1346 | } |
---|
1347 | |
---|
1348 | // |
---|
1349 | // Ok, two ordinary types. |
---|
1350 | // |
---|
1351 | return false; |
---|
1352 | } |
---|
1353 | } |
---|
1354 | |
---|
1355 | public static bool Equals (TypeSpec[] x, TypeSpec[] y) |
---|
1356 | { |
---|
1357 | if (x == y) |
---|
1358 | return true; |
---|
1359 | |
---|
1360 | if (x.Length != y.Length) |
---|
1361 | return false; |
---|
1362 | |
---|
1363 | for (int i = 0; i < x.Length; ++i) |
---|
1364 | if (!IsEqual (x[i], y[i])) |
---|
1365 | return false; |
---|
1366 | |
---|
1367 | return true; |
---|
1368 | } |
---|
1369 | |
---|
1370 | // |
---|
1371 | // Identity type conversion |
---|
1372 | // |
---|
1373 | // Default reference comparison, it has to be used when comparing |
---|
1374 | // two possible dynamic/internal types |
---|
1375 | // |
---|
1376 | public static bool IsEqual (TypeSpec a, TypeSpec b) |
---|
1377 | { |
---|
1378 | if (a == b) { |
---|
1379 | // This also rejects dynamic == dynamic |
---|
1380 | return a.Kind != MemberKind.InternalCompilerType || a.BuiltinType == BuiltinTypeSpec.Type.Dynamic; |
---|
1381 | } |
---|
1382 | |
---|
1383 | if (a == null || b == null) |
---|
1384 | return false; |
---|
1385 | |
---|
1386 | if (a.IsArray) { |
---|
1387 | var a_a = (ArrayContainer) a; |
---|
1388 | var b_a = b as ArrayContainer; |
---|
1389 | if (b_a == null) |
---|
1390 | return false; |
---|
1391 | |
---|
1392 | return a_a.Rank == b_a.Rank && IsEqual (a_a.Element, b_a.Element); |
---|
1393 | } |
---|
1394 | |
---|
1395 | if (!a.IsGeneric || !b.IsGeneric) { |
---|
1396 | // |
---|
1397 | // object and dynamic are considered equivalent there is an identity conversion |
---|
1398 | // between object and dynamic, and between constructed types that are the same |
---|
1399 | // when replacing all occurences of dynamic with object. |
---|
1400 | // |
---|
1401 | if (a.BuiltinType == BuiltinTypeSpec.Type.Dynamic || b.BuiltinType == BuiltinTypeSpec.Type.Dynamic) |
---|
1402 | return b.BuiltinType == BuiltinTypeSpec.Type.Object || a.BuiltinType == BuiltinTypeSpec.Type.Object; |
---|
1403 | |
---|
1404 | return false; |
---|
1405 | } |
---|
1406 | |
---|
1407 | if (a.MemberDefinition != b.MemberDefinition) |
---|
1408 | return false; |
---|
1409 | |
---|
1410 | do { |
---|
1411 | if (!Equals (a.TypeArguments, b.TypeArguments)) |
---|
1412 | return false; |
---|
1413 | |
---|
1414 | a = a.DeclaringType; |
---|
1415 | b = b.DeclaringType; |
---|
1416 | } while (a != null); |
---|
1417 | |
---|
1418 | return true; |
---|
1419 | } |
---|
1420 | } |
---|
1421 | |
---|
1422 | public interface ITypeDefinition : IMemberDefinition |
---|
1423 | { |
---|
1424 | IAssemblyDefinition DeclaringAssembly { get; } |
---|
1425 | string Namespace { get; } |
---|
1426 | bool IsPartial { get; } |
---|
1427 | bool IsComImport { get; } |
---|
1428 | bool IsTypeForwarder { get; } |
---|
1429 | bool IsCyclicTypeForwarder { get; } |
---|
1430 | int TypeParametersCount { get; } |
---|
1431 | TypeParameterSpec[] TypeParameters { get; } |
---|
1432 | |
---|
1433 | TypeSpec GetAttributeCoClass (); |
---|
1434 | string GetAttributeDefaultMember (); |
---|
1435 | AttributeUsageAttribute GetAttributeUsage (PredefinedAttribute pa); |
---|
1436 | bool IsInternalAsPublic (IAssemblyDefinition assembly); |
---|
1437 | void LoadMembers (TypeSpec declaringType, bool onlyTypes, ref MemberCache cache); |
---|
1438 | } |
---|
1439 | |
---|
1440 | class InternalType : TypeSpec, ITypeDefinition |
---|
1441 | { |
---|
1442 | public static readonly InternalType AnonymousMethod = new InternalType ("anonymous method"); |
---|
1443 | public static readonly InternalType Arglist = new InternalType ("__arglist"); |
---|
1444 | public static readonly InternalType MethodGroup = new InternalType ("method group"); |
---|
1445 | public static readonly InternalType NullLiteral = new InternalType ("null"); |
---|
1446 | public static readonly InternalType FakeInternalType = new InternalType ("<fake$type>"); |
---|
1447 | public static readonly InternalType Namespace = new InternalType ("<namespace>"); |
---|
1448 | public static readonly InternalType ErrorType = new InternalType ("<error>"); |
---|
1449 | |
---|
1450 | readonly string name; |
---|
1451 | |
---|
1452 | InternalType (string name) |
---|
1453 | : base (MemberKind.InternalCompilerType, null, null, null, Modifiers.PUBLIC) |
---|
1454 | { |
---|
1455 | this.name = name; |
---|
1456 | this.definition = this; |
---|
1457 | cache = MemberCache.Empty; |
---|
1458 | |
---|
1459 | // Make all internal types CLS-compliant, non-obsolete |
---|
1460 | state = (state & ~(StateFlags.CLSCompliant_Undetected | StateFlags.Obsolete_Undetected | StateFlags.MissingDependency_Undetected)) | StateFlags.CLSCompliant; |
---|
1461 | } |
---|
1462 | |
---|
1463 | #region Properties |
---|
1464 | |
---|
1465 | public override int Arity { |
---|
1466 | get { |
---|
1467 | return 0; |
---|
1468 | } |
---|
1469 | } |
---|
1470 | |
---|
1471 | IAssemblyDefinition ITypeDefinition.DeclaringAssembly { |
---|
1472 | get { |
---|
1473 | throw new NotImplementedException (); |
---|
1474 | } |
---|
1475 | } |
---|
1476 | |
---|
1477 | bool ITypeDefinition.IsComImport { |
---|
1478 | get { |
---|
1479 | return false; |
---|
1480 | } |
---|
1481 | } |
---|
1482 | |
---|
1483 | bool IMemberDefinition.IsImported { |
---|
1484 | get { |
---|
1485 | return false; |
---|
1486 | } |
---|
1487 | } |
---|
1488 | |
---|
1489 | bool ITypeDefinition.IsPartial { |
---|
1490 | get { |
---|
1491 | return false; |
---|
1492 | } |
---|
1493 | } |
---|
1494 | |
---|
1495 | bool ITypeDefinition.IsTypeForwarder { |
---|
1496 | get { |
---|
1497 | return false; |
---|
1498 | } |
---|
1499 | } |
---|
1500 | |
---|
1501 | bool ITypeDefinition.IsCyclicTypeForwarder { |
---|
1502 | get { |
---|
1503 | return false; |
---|
1504 | } |
---|
1505 | } |
---|
1506 | |
---|
1507 | public override string Name { |
---|
1508 | get { |
---|
1509 | return name; |
---|
1510 | } |
---|
1511 | } |
---|
1512 | |
---|
1513 | string ITypeDefinition.Namespace { |
---|
1514 | get { |
---|
1515 | return null; |
---|
1516 | } |
---|
1517 | } |
---|
1518 | |
---|
1519 | int ITypeDefinition.TypeParametersCount { |
---|
1520 | get { |
---|
1521 | return 0; |
---|
1522 | } |
---|
1523 | } |
---|
1524 | |
---|
1525 | TypeParameterSpec[] ITypeDefinition.TypeParameters { |
---|
1526 | get { |
---|
1527 | return null; |
---|
1528 | } |
---|
1529 | } |
---|
1530 | |
---|
1531 | #endregion |
---|
1532 | |
---|
1533 | public override string GetSignatureForError () |
---|
1534 | { |
---|
1535 | return name; |
---|
1536 | } |
---|
1537 | |
---|
1538 | #region ITypeDefinition Members |
---|
1539 | |
---|
1540 | TypeSpec ITypeDefinition.GetAttributeCoClass () |
---|
1541 | { |
---|
1542 | return null; |
---|
1543 | } |
---|
1544 | |
---|
1545 | string ITypeDefinition.GetAttributeDefaultMember () |
---|
1546 | { |
---|
1547 | return null; |
---|
1548 | } |
---|
1549 | |
---|
1550 | AttributeUsageAttribute ITypeDefinition.GetAttributeUsage (PredefinedAttribute pa) |
---|
1551 | { |
---|
1552 | return null; |
---|
1553 | } |
---|
1554 | |
---|
1555 | bool ITypeDefinition.IsInternalAsPublic (IAssemblyDefinition assembly) |
---|
1556 | { |
---|
1557 | throw new NotImplementedException (); |
---|
1558 | } |
---|
1559 | |
---|
1560 | void ITypeDefinition.LoadMembers (TypeSpec declaringType, bool onlyTypes, ref MemberCache cache) |
---|
1561 | { |
---|
1562 | throw new NotImplementedException (); |
---|
1563 | } |
---|
1564 | |
---|
1565 | string[] IMemberDefinition.ConditionalConditions () |
---|
1566 | { |
---|
1567 | return null; |
---|
1568 | } |
---|
1569 | |
---|
1570 | ObsoleteAttribute IMemberDefinition.GetAttributeObsolete () |
---|
1571 | { |
---|
1572 | return null; |
---|
1573 | } |
---|
1574 | |
---|
1575 | bool? IMemberDefinition.CLSAttributeValue { |
---|
1576 | get { |
---|
1577 | return null; |
---|
1578 | } |
---|
1579 | } |
---|
1580 | |
---|
1581 | void IMemberDefinition.SetIsAssigned () |
---|
1582 | { |
---|
1583 | } |
---|
1584 | |
---|
1585 | void IMemberDefinition.SetIsUsed () |
---|
1586 | { |
---|
1587 | } |
---|
1588 | |
---|
1589 | #endregion |
---|
1590 | } |
---|
1591 | |
---|
1592 | // |
---|
1593 | // Common base class for composite types |
---|
1594 | // |
---|
1595 | public abstract class ElementTypeSpec : TypeSpec, ITypeDefinition |
---|
1596 | { |
---|
1597 | protected ElementTypeSpec (MemberKind kind, TypeSpec element, MetaType info) |
---|
1598 | : base (kind, element.DeclaringType, null, info, element.Modifiers) |
---|
1599 | { |
---|
1600 | this.Element = element; |
---|
1601 | |
---|
1602 | state &= ~SharedStateFlags; |
---|
1603 | state |= (element.state & SharedStateFlags); |
---|
1604 | |
---|
1605 | if (element.BuiltinType == BuiltinTypeSpec.Type.Dynamic) |
---|
1606 | state |= StateFlags.HasDynamicElement; |
---|
1607 | |
---|
1608 | // Has to use its own type definition instead of just element definition to |
---|
1609 | // correctly identify itself for cases like x.MemberDefininition == predefined.MemberDefinition |
---|
1610 | this.definition = this; |
---|
1611 | |
---|
1612 | cache = MemberCache.Empty; |
---|
1613 | } |
---|
1614 | |
---|
1615 | #region Properties |
---|
1616 | |
---|
1617 | public TypeSpec Element { get; private set; } |
---|
1618 | |
---|
1619 | bool ITypeDefinition.IsComImport { |
---|
1620 | get { |
---|
1621 | return false; |
---|
1622 | } |
---|
1623 | } |
---|
1624 | |
---|
1625 | bool ITypeDefinition.IsPartial { |
---|
1626 | get { |
---|
1627 | return false; |
---|
1628 | } |
---|
1629 | } |
---|
1630 | |
---|
1631 | bool ITypeDefinition.IsTypeForwarder { |
---|
1632 | get { |
---|
1633 | return false; |
---|
1634 | } |
---|
1635 | } |
---|
1636 | |
---|
1637 | bool ITypeDefinition.IsCyclicTypeForwarder { |
---|
1638 | get { |
---|
1639 | return false; |
---|
1640 | } |
---|
1641 | } |
---|
1642 | |
---|
1643 | public override string Name { |
---|
1644 | get { |
---|
1645 | throw new NotSupportedException (); |
---|
1646 | } |
---|
1647 | } |
---|
1648 | |
---|
1649 | #endregion |
---|
1650 | |
---|
1651 | public override ObsoleteAttribute GetAttributeObsolete () |
---|
1652 | { |
---|
1653 | return Element.GetAttributeObsolete (); |
---|
1654 | } |
---|
1655 | |
---|
1656 | protected virtual string GetPostfixSignature () |
---|
1657 | { |
---|
1658 | return null; |
---|
1659 | } |
---|
1660 | |
---|
1661 | public override string GetSignatureForDocumentation () |
---|
1662 | { |
---|
1663 | return Element.GetSignatureForDocumentation () + GetPostfixSignature (); |
---|
1664 | } |
---|
1665 | |
---|
1666 | public override string GetSignatureForError () |
---|
1667 | { |
---|
1668 | return Element.GetSignatureForError () + GetPostfixSignature (); |
---|
1669 | } |
---|
1670 | |
---|
1671 | public override TypeSpec Mutate (TypeParameterMutator mutator) |
---|
1672 | { |
---|
1673 | var me = Element.Mutate (mutator); |
---|
1674 | if (me == Element) |
---|
1675 | return this; |
---|
1676 | |
---|
1677 | var mutated = (ElementTypeSpec) MemberwiseClone (); |
---|
1678 | mutated.Element = me; |
---|
1679 | mutated.info = null; |
---|
1680 | return mutated; |
---|
1681 | } |
---|
1682 | |
---|
1683 | #region ITypeDefinition Members |
---|
1684 | |
---|
1685 | IAssemblyDefinition ITypeDefinition.DeclaringAssembly { |
---|
1686 | get { |
---|
1687 | return Element.MemberDefinition.DeclaringAssembly; |
---|
1688 | } |
---|
1689 | } |
---|
1690 | |
---|
1691 | bool ITypeDefinition.IsInternalAsPublic (IAssemblyDefinition assembly) |
---|
1692 | { |
---|
1693 | return Element.MemberDefinition.IsInternalAsPublic (assembly); |
---|
1694 | } |
---|
1695 | |
---|
1696 | public string Namespace { |
---|
1697 | get { throw new NotImplementedException (); } |
---|
1698 | } |
---|
1699 | |
---|
1700 | public int TypeParametersCount { |
---|
1701 | get { |
---|
1702 | return 0; |
---|
1703 | } |
---|
1704 | } |
---|
1705 | |
---|
1706 | public TypeParameterSpec[] TypeParameters { |
---|
1707 | get { |
---|
1708 | throw new NotSupportedException (); |
---|
1709 | } |
---|
1710 | } |
---|
1711 | |
---|
1712 | public TypeSpec GetAttributeCoClass () |
---|
1713 | { |
---|
1714 | return Element.MemberDefinition.GetAttributeCoClass (); |
---|
1715 | } |
---|
1716 | |
---|
1717 | public string GetAttributeDefaultMember () |
---|
1718 | { |
---|
1719 | return Element.MemberDefinition.GetAttributeDefaultMember (); |
---|
1720 | } |
---|
1721 | |
---|
1722 | public void LoadMembers (TypeSpec declaringType, bool onlyTypes, ref MemberCache cache) |
---|
1723 | { |
---|
1724 | Element.MemberDefinition.LoadMembers (declaringType, onlyTypes, ref cache); |
---|
1725 | } |
---|
1726 | |
---|
1727 | public bool IsImported { |
---|
1728 | get { |
---|
1729 | return Element.MemberDefinition.IsImported; |
---|
1730 | } |
---|
1731 | } |
---|
1732 | |
---|
1733 | public string[] ConditionalConditions () |
---|
1734 | { |
---|
1735 | return Element.MemberDefinition.ConditionalConditions (); |
---|
1736 | } |
---|
1737 | |
---|
1738 | bool? IMemberDefinition.CLSAttributeValue { |
---|
1739 | get { |
---|
1740 | return Element.MemberDefinition.CLSAttributeValue; |
---|
1741 | } |
---|
1742 | } |
---|
1743 | |
---|
1744 | public void SetIsAssigned () |
---|
1745 | { |
---|
1746 | Element.MemberDefinition.SetIsAssigned (); |
---|
1747 | } |
---|
1748 | |
---|
1749 | public void SetIsUsed () |
---|
1750 | { |
---|
1751 | Element.MemberDefinition.SetIsUsed (); |
---|
1752 | } |
---|
1753 | |
---|
1754 | #endregion |
---|
1755 | } |
---|
1756 | |
---|
1757 | public class ArrayContainer : ElementTypeSpec |
---|
1758 | { |
---|
1759 | public struct TypeRankPair : IEquatable<TypeRankPair> |
---|
1760 | { |
---|
1761 | TypeSpec ts; |
---|
1762 | int rank; |
---|
1763 | |
---|
1764 | public TypeRankPair (TypeSpec ts, int rank) |
---|
1765 | { |
---|
1766 | this.ts = ts; |
---|
1767 | this.rank = rank; |
---|
1768 | } |
---|
1769 | |
---|
1770 | public override int GetHashCode () |
---|
1771 | { |
---|
1772 | return ts.GetHashCode () ^ rank.GetHashCode (); |
---|
1773 | } |
---|
1774 | |
---|
1775 | #region IEquatable<Tuple<T1,T2>> Members |
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1776 | |
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1777 | public bool Equals (TypeRankPair other) |
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1778 | { |
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1779 | return other.ts == ts && other.rank == rank; |
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1780 | } |
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1781 | |
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1782 | #endregion |
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1783 | } |
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1784 | |
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1785 | readonly int rank; |
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1786 | readonly ModuleContainer module; |
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1787 | |
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1788 | private ArrayContainer (ModuleContainer module, TypeSpec element, int rank) |
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1789 | : base (MemberKind.ArrayType, element, null) |
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1790 | { |
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1791 | this.module = module; |
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1792 | this.rank = rank; |
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1793 | } |
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1794 | |
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1795 | public int Rank { |
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1796 | get { |
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1797 | return rank; |
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1798 | } |
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1799 | } |
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1800 | |
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1801 | public MethodInfo GetConstructor () |
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1802 | { |
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1803 | var mb = module.Builder; |
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1804 | |
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1805 | var arg_types = new MetaType[rank]; |
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1806 | for (int i = 0; i < rank; i++) |
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1807 | arg_types[i] = module.Compiler.BuiltinTypes.Int.GetMetaInfo (); |
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1808 | |
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1809 | var ctor = mb.GetArrayMethod ( |
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1810 | GetMetaInfo (), Constructor.ConstructorName, |
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1811 | CallingConventions.HasThis, |
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1812 | null, arg_types); |
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1813 | |
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1814 | return ctor; |
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1815 | } |
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1816 | |
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1817 | public MethodInfo GetAddressMethod () |
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1818 | { |
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1819 | var mb = module.Builder; |
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1820 | |
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1821 | var arg_types = new MetaType[rank]; |
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1822 | for (int i = 0; i < rank; i++) |
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1823 | arg_types[i] = module.Compiler.BuiltinTypes.Int.GetMetaInfo (); |
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1824 | |
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1825 | var address = mb.GetArrayMethod ( |
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1826 | GetMetaInfo (), "Address", |
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1827 | CallingConventions.HasThis | CallingConventions.Standard, |
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1828 | ReferenceContainer.MakeType (module, Element).GetMetaInfo (), arg_types); |
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1829 | |
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1830 | return address; |
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1831 | } |
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1832 | |
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1833 | public MethodInfo GetGetMethod () |
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1834 | { |
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1835 | var mb = module.Builder; |
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1836 | |
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1837 | var arg_types = new MetaType[rank]; |
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1838 | for (int i = 0; i < rank; i++) |
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1839 | arg_types[i] = module.Compiler.BuiltinTypes.Int.GetMetaInfo (); |
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1840 | |
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1841 | var get = mb.GetArrayMethod ( |
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1842 | GetMetaInfo (), "Get", |
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1843 | CallingConventions.HasThis | CallingConventions.Standard, |
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1844 | Element.GetMetaInfo (), arg_types); |
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1845 | |
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1846 | return get; |
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1847 | } |
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1848 | |
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1849 | public MethodInfo GetSetMethod () |
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1850 | { |
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1851 | var mb = module.Builder; |
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1852 | |
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1853 | var arg_types = new MetaType[rank + 1]; |
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1854 | for (int i = 0; i < rank; i++) |
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1855 | arg_types[i] = module.Compiler.BuiltinTypes.Int.GetMetaInfo (); |
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1856 | |
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1857 | arg_types[rank] = Element.GetMetaInfo (); |
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1858 | |
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1859 | var set = mb.GetArrayMethod ( |
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1860 | GetMetaInfo (), "Set", |
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1861 | CallingConventions.HasThis | CallingConventions.Standard, |
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1862 | module.Compiler.BuiltinTypes.Void.GetMetaInfo (), arg_types); |
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1863 | |
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1864 | return set; |
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1865 | } |
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1866 | |
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1867 | public override MetaType GetMetaInfo () |
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1868 | { |
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1869 | if (info == null) { |
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1870 | if (rank == 1) |
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1871 | info = Element.GetMetaInfo ().MakeArrayType (); |
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1872 | else |
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1873 | info = Element.GetMetaInfo ().MakeArrayType (rank); |
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1874 | } |
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1875 | |
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1876 | return info; |
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1877 | } |
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1878 | |
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1879 | protected override string GetPostfixSignature() |
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1880 | { |
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1881 | return GetPostfixSignature (rank); |
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1882 | } |
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1883 | |
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1884 | public static string GetPostfixSignature (int rank) |
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1885 | { |
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1886 | StringBuilder sb = new StringBuilder (); |
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1887 | sb.Append ("["); |
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1888 | for (int i = 1; i < rank; i++) { |
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1889 | sb.Append (","); |
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1890 | } |
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1891 | sb.Append ("]"); |
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1892 | |
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1893 | return sb.ToString (); |
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1894 | } |
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1895 | |
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1896 | public override string GetSignatureForDocumentation () |
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1897 | { |
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1898 | StringBuilder sb = new StringBuilder (); |
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1899 | GetElementSignatureForDocumentation (sb); |
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1900 | return sb.ToString (); |
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1901 | } |
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1902 | |
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1903 | void GetElementSignatureForDocumentation (StringBuilder sb) |
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1904 | { |
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1905 | var ac = Element as ArrayContainer; |
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1906 | if (ac == null) |
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1907 | sb.Append (Element.GetSignatureForDocumentation ()); |
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1908 | else |
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1909 | ac.GetElementSignatureForDocumentation (sb); |
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1910 | |
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1911 | sb.Append ("["); |
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1912 | for (int i = 1; i < rank; i++) { |
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1913 | if (i == 1) |
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1914 | sb.Append ("0:"); |
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1915 | |
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1916 | sb.Append (",0:"); |
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1917 | } |
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1918 | sb.Append ("]"); |
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1919 | } |
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1920 | |
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1921 | public static ArrayContainer MakeType (ModuleContainer module, TypeSpec element) |
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1922 | { |
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1923 | return MakeType (module, element, 1); |
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1924 | } |
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1925 | |
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1926 | public static ArrayContainer MakeType (ModuleContainer module, TypeSpec element, int rank) |
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1927 | { |
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1928 | ArrayContainer ac; |
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1929 | var key = new TypeRankPair (element, rank); |
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1930 | if (!module.ArrayTypesCache.TryGetValue (key, out ac)) { |
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1931 | ac = new ArrayContainer (module, element, rank); |
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1932 | ac.BaseType = module.Compiler.BuiltinTypes.Array; |
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1933 | ac.Interfaces = ac.BaseType.Interfaces; |
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1934 | |
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1935 | module.ArrayTypesCache.Add (key, ac); |
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1936 | } |
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1937 | |
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1938 | return ac; |
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1939 | } |
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1940 | |
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1941 | public override List<MissingTypeSpecReference> ResolveMissingDependencies (MemberSpec caller) |
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1942 | { |
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1943 | return Element.ResolveMissingDependencies (caller); |
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1944 | } |
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1945 | } |
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1946 | |
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1947 | class ReferenceContainer : ElementTypeSpec |
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1948 | { |
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1949 | private ReferenceContainer (TypeSpec element) |
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1950 | : base (MemberKind.Class, element, null) // TODO: Kind.Class is most likely wrong |
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1951 | { |
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1952 | } |
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1953 | |
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1954 | public override MetaType GetMetaInfo () |
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1955 | { |
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1956 | if (info == null) { |
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1957 | info = Element.GetMetaInfo ().MakeByRefType (); |
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1958 | } |
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1959 | |
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1960 | return info; |
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1961 | } |
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1962 | |
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1963 | public static ReferenceContainer MakeType (ModuleContainer module, TypeSpec element) |
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1964 | { |
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1965 | ReferenceContainer pc; |
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1966 | if (!module.ReferenceTypesCache.TryGetValue (element, out pc)) { |
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1967 | pc = new ReferenceContainer (element); |
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1968 | module.ReferenceTypesCache.Add (element, pc); |
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1969 | } |
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1970 | |
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1971 | return pc; |
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1972 | } |
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1973 | } |
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1974 | |
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1975 | class PointerContainer : ElementTypeSpec |
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1976 | { |
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1977 | private PointerContainer (TypeSpec element) |
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1978 | : base (MemberKind.PointerType, element, null) |
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1979 | { |
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1980 | // It's never CLS-Compliant |
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1981 | state &= ~StateFlags.CLSCompliant_Undetected; |
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1982 | } |
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1983 | |
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1984 | public override MetaType GetMetaInfo () |
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1985 | { |
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1986 | if (info == null) { |
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1987 | info = Element.GetMetaInfo ().MakePointerType (); |
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1988 | } |
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1989 | |
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1990 | return info; |
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1991 | } |
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1992 | |
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1993 | protected override string GetPostfixSignature() |
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1994 | { |
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1995 | return "*"; |
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1996 | } |
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1997 | |
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1998 | public static PointerContainer MakeType (ModuleContainer module, TypeSpec element) |
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1999 | { |
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2000 | PointerContainer pc; |
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2001 | if (!module.PointerTypesCache.TryGetValue (element, out pc)) { |
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2002 | pc = new PointerContainer (element); |
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2003 | module.PointerTypesCache.Add (element, pc); |
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2004 | } |
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2005 | |
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2006 | return pc; |
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2007 | } |
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2008 | } |
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2009 | |
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2010 | public class MissingTypeSpecReference |
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2011 | { |
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2012 | public MissingTypeSpecReference (TypeSpec type, MemberSpec caller) |
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2013 | { |
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2014 | Type = type; |
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2015 | Caller = caller; |
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2016 | } |
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2017 | |
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2018 | public TypeSpec Type { get; private set; } |
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2019 | public MemberSpec Caller { get; private set; } |
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2020 | } |
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2021 | } |
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