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annotate dmd2/aggregate.h @ 1578:1dee66f6ec0b

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Removed a chunk of code in favour of a shorter and more portable method
author Robert Clipsham <robert@octarineparrot.com>
date Tue, 08 Sep 2009 11:21:30 +0100
parents f62347c22d81
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1452
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1
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2 // Compiler implementation of the D programming language
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3 // Copyright (c) 1999-2008 by Digital Mars
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4 // All Rights Reserved
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5 // written by Walter Bright
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6 // http://www.digitalmars.com
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7 // License for redistribution is by either the Artistic License
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8 // in artistic.txt, or the GNU General Public License in gnu.txt.
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9 // See the included readme.txt for details.
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10
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11 #ifndef DMD_AGGREGATE_H
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12 #define DMD_AGGREGATE_H
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13
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14 #ifdef __DMC__
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15 #pragma once
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16 #endif /* __DMC__ */
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17
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18 #include "root.h"
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19 #include "dsymbol.h"
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20
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21 #if IN_LLVM
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22 #include <vector>
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23 #include <set>
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24 #include <map>
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25 #endif
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26
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27 struct Identifier;
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28 struct Type;
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29 struct TypeFunction;
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30 struct Expression;
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31 struct FuncDeclaration;
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32 struct CtorDeclaration;
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33 struct DtorDeclaration;
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34 struct InvariantDeclaration;
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35 struct NewDeclaration;
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36 struct DeleteDeclaration;
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37 struct InterfaceDeclaration;
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38 struct ClassInfoDeclaration;
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39 struct VarDeclaration;
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40 struct dt_t;
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41
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42 #if IN_LLVM
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43 namespace llvm
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44 {
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45 class Type;
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46 class Value;
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47 class Constant;
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48 class ConstantStruct;
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49 class GlobalVariable;
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50 }
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51 #endif
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52
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53 struct AggregateDeclaration : ScopeDsymbol
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54 {
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55 Type *type;
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56 unsigned storage_class;
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57 enum PROT protection;
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58 Type *handle; // 'this' type
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59 unsigned structsize; // size of struct
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60 unsigned alignsize; // size of struct for alignment purposes
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61 unsigned structalign; // struct member alignment in effect
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62 int hasUnions; // set if aggregate has overlapping fields
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63 Array fields; // VarDeclaration fields
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64 unsigned sizeok; // set when structsize contains valid data
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65 // 0: no size
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66 // 1: size is correct
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67 // 2: cannot determine size; fwd referenced
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68 int isdeprecated; // !=0 if deprecated
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69 Scope *scope; // !=NULL means context to use
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70
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71 int isnested; // !=0 if is nested
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72 VarDeclaration *vthis; // 'this' parameter if this aggregate is nested
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73
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74 // Special member functions
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75 InvariantDeclaration *inv; // invariant
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76 NewDeclaration *aggNew; // allocator
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77 DeleteDeclaration *aggDelete; // deallocator
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78
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79 #if DMDV2
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80 //CtorDeclaration *ctor;
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81 Dsymbol *ctor; // CtorDeclaration or TemplateDeclaration
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82 CtorDeclaration *defaultCtor; // default constructor
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83 Dsymbol *aliasthis; // forward unresolved lookups to aliasthis
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84 #endif
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85
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86 FuncDeclarations dtors; // Array of destructors
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87 FuncDeclaration *dtor; // aggregate destructor
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88
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89 #ifdef IN_GCC
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90 Array methods; // flat list of all methods for debug information
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91 #endif
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92
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93 AggregateDeclaration(Loc loc, Identifier *id);
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94 void semantic2(Scope *sc);
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95 void semantic3(Scope *sc);
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96 void inlineScan();
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97 unsigned size(Loc loc);
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98 static void alignmember(unsigned salign, unsigned size, unsigned *poffset);
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99 Type *getType();
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100 void addField(Scope *sc, VarDeclaration *v);
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101 int isDeprecated(); // is aggregate deprecated?
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102 FuncDeclaration *buildDtor(Scope *sc);
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103 int isNested();
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104
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105 void emitComment(Scope *sc);
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106 void toDocBuffer(OutBuffer *buf);
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107
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108 // For access checking
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109 virtual PROT getAccess(Dsymbol *smember); // determine access to smember
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110 int isFriendOf(AggregateDeclaration *cd);
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111 int hasPrivateAccess(Dsymbol *smember); // does smember have private access to members of this class?
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112 void accessCheck(Loc loc, Scope *sc, Dsymbol *smember);
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113
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114 enum PROT prot();
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115
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116 #if IN_DMD
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117 // Back end
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118 Symbol *stag; // tag symbol for debug data
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119 Symbol *sinit;
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120 Symbol *toInitializer();
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121 #endif
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122
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123 AggregateDeclaration *isAggregateDeclaration() { return this; }
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124
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125 #if IN_LLVM
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126 // Aggregates that wouldn't have gotten semantic3'ed if we weren't inlining set this flag.
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127 bool availableExternally;
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128 #endif
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129 };
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130
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131 struct AnonymousAggregateDeclaration : AggregateDeclaration
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132 {
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133 AnonymousAggregateDeclaration()
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134 : AggregateDeclaration(0, NULL)
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135 {
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136 }
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137
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138 AnonymousAggregateDeclaration *isAnonymousAggregateDeclaration() { return this; }
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139 };
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140
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141 struct StructDeclaration : AggregateDeclaration
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142 {
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143 int zeroInit; // !=0 if initialize with 0 fill
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144 #if DMDV2
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145 int hasIdentityAssign; // !=0 if has identity opAssign
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146 FuncDeclaration *cpctor; // generated copy-constructor, if any
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147
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148 FuncDeclarations postblits; // Array of postblit functions
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149 FuncDeclaration *postblit; // aggregate postblit
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150 #endif
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151
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152 StructDeclaration(Loc loc, Identifier *id);
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153 Dsymbol *syntaxCopy(Dsymbol *s);
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154 void semantic(Scope *sc);
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155 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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156 char *mangle();
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157 const char *kind();
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158 int needOpAssign();
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159 FuncDeclaration *buildOpAssign(Scope *sc);
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160 FuncDeclaration *buildPostBlit(Scope *sc);
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161 FuncDeclaration *buildCpCtor(Scope *sc);
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162 void toDocBuffer(OutBuffer *buf);
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163
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164 PROT getAccess(Dsymbol *smember); // determine access to smember
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165
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166 #if IN_DMD
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167 void toObjFile(int multiobj); // compile to .obj file
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168 void toDt(dt_t **pdt);
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169 void toDebug(); // to symbolic debug info
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170 #endif
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171
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172 StructDeclaration *isStructDeclaration() { return this; }
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173
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174 #if IN_LLVM
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175 void codegen(Ir*);
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176 #endif
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177 };
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178
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179 struct UnionDeclaration : StructDeclaration
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180 {
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181 UnionDeclaration(Loc loc, Identifier *id);
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182 Dsymbol *syntaxCopy(Dsymbol *s);
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183 const char *kind();
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184
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185 UnionDeclaration *isUnionDeclaration() { return this; }
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186 };
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187
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188 // warning: two classes with the same base class share the same
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189 // BaseClass instance.
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190 struct BaseClass
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191 {
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192 Type *type; // (before semantic processing)
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193 enum PROT protection; // protection for the base interface
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194
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195 ClassDeclaration *base;
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196 int offset; // 'this' pointer offset
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197 Array vtbl; // for interfaces: Array of FuncDeclaration's
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198 // making up the vtbl[]
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199
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200 int baseInterfaces_dim;
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201 BaseClass *baseInterfaces; // if BaseClass is an interface, these
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202 // are a copy of the InterfaceDeclaration::interfaces
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203
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204 BaseClass();
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205 BaseClass(Type *type, enum PROT protection);
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206
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207 int fillVtbl(ClassDeclaration *cd, Array *vtbl, int newinstance);
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208 void copyBaseInterfaces(BaseClasses *);
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209 };
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210
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211 #if DMDV2
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212 #define CLASSINFO_SIZE (0x3C+16+4) // value of ClassInfo.size
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213 #else
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214 #define CLASSINFO_SIZE (0x3C+12+4) // value of ClassInfo.size
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215 #endif
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216
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217 struct ClassDeclaration : AggregateDeclaration
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218 {
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219 static ClassDeclaration *object;
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220 static ClassDeclaration *classinfo;
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221
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222 ClassDeclaration *baseClass; // NULL only if this is Object
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223 FuncDeclaration *staticCtor;
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224 FuncDeclaration *staticDtor;
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225 Array vtbl; // Array of FuncDeclaration's making up the vtbl[]
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226 Array vtblFinal; // More FuncDeclaration's that aren't in vtbl[]
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227
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228 BaseClasses baseclasses; // Array of BaseClass's; first is super,
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229 // rest are Interface's
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230
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diff changeset
231 int interfaces_dim;
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232 BaseClass **interfaces; // interfaces[interfaces_dim] for this class
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diff changeset
233 // (does not include baseClass)
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234
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235 BaseClasses *vtblInterfaces; // array of base interfaces that have
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diff changeset
236 // their own vtbl[]
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237
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diff changeset
238 ClassInfoDeclaration *vclassinfo; // the ClassInfo object for this ClassDeclaration
638d16625da2 LDC 2 compiles again.
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diff changeset
239 int com; // !=0 if this is a COM class (meaning
638d16625da2 LDC 2 compiles again.
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diff changeset
240 // it derives from IUnknown)
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241 int isauto; // !=0 if this is an auto class
638d16625da2 LDC 2 compiles again.
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diff changeset
242 int isabstract; // !=0 if abstract class
638d16625da2 LDC 2 compiles again.
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diff changeset
243
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diff changeset
244 int inuse; // to prevent recursive attempts
638d16625da2 LDC 2 compiles again.
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245
638d16625da2 LDC 2 compiles again.
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diff changeset
246 ClassDeclaration(Loc loc, Identifier *id, BaseClasses *baseclasses);
638d16625da2 LDC 2 compiles again.
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247 Dsymbol *syntaxCopy(Dsymbol *s);
638d16625da2 LDC 2 compiles again.
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248 void semantic(Scope *sc);
638d16625da2 LDC 2 compiles again.
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249 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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250 int isBaseOf2(ClassDeclaration *cd);
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diff changeset
251
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diff changeset
252 #define OFFSET_RUNTIME 0x76543210
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diff changeset
253 virtual int isBaseOf(ClassDeclaration *cd, int *poffset);
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diff changeset
254
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diff changeset
255 Dsymbol *search(Loc, Identifier *ident, int flags);
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diff changeset
256 #if DMDV2
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257 int isFuncHidden(FuncDeclaration *fd);
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258 #endif
638d16625da2 LDC 2 compiles again.
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259 FuncDeclaration *findFunc(Identifier *ident, TypeFunction *tf);
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260 void interfaceSemantic(Scope *sc);
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diff changeset
261 int isCOMclass();
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diff changeset
262 virtual int isCOMinterface();
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diff changeset
263 #if DMDV2
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diff changeset
264 virtual int isCPPinterface();
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diff changeset
265 #endif
638d16625da2 LDC 2 compiles again.
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diff changeset
266 int isAbstract();
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diff changeset
267 virtual int vtblOffset();
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diff changeset
268 const char *kind();
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diff changeset
269 char *mangle();
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diff changeset
270 void toDocBuffer(OutBuffer *buf);
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diff changeset
271
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diff changeset
272 PROT getAccess(Dsymbol *smember); // determine access to smember
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diff changeset
273
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diff changeset
274 void addLocalClass(ClassDeclarations *);
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diff changeset
275
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diff changeset
276 #if IN_DMD
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diff changeset
277 // Back end
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diff changeset
278 void toObjFile(int multiobj); // compile to .obj file
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diff changeset
279 void toDebug();
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diff changeset
280 unsigned baseVtblOffset(BaseClass *bc);
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diff changeset
281 Symbol *toSymbol();
638d16625da2 LDC 2 compiles again.
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diff changeset
282 Symbol *toVtblSymbol();
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diff changeset
283 void toDt(dt_t **pdt);
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diff changeset
284 void toDt2(dt_t **pdt, ClassDeclaration *cd);
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diff changeset
285
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diff changeset
286 Symbol *vtblsym;
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diff changeset
287 #endif
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diff changeset
288
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diff changeset
289 ClassDeclaration *isClassDeclaration() { return (ClassDeclaration *)this; }
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diff changeset
290
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diff changeset
291 #if IN_LLVM
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diff changeset
292 virtual void codegen(Ir*);
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diff changeset
293 #endif
638d16625da2 LDC 2 compiles again.
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diff changeset
294 };
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diff changeset
295
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diff changeset
296 struct InterfaceDeclaration : ClassDeclaration
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diff changeset
297 {
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diff changeset
298 #if DMDV2
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diff changeset
299 int cpp; // !=0 if this is a C++ interface
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300 #endif
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301 InterfaceDeclaration(Loc loc, Identifier *id, BaseClasses *baseclasses);
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302 Dsymbol *syntaxCopy(Dsymbol *s);
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303 void semantic(Scope *sc);
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304 int isBaseOf(ClassDeclaration *cd, int *poffset);
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305 int isBaseOf(BaseClass *bc, int *poffset);
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306 const char *kind();
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307 int vtblOffset();
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308 #if DMDV2
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309 int isCPPinterface();
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310 #endif
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311 virtual int isCOMinterface();
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312
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313 #if IN_DMD
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314 void toObjFile(int multiobj); // compile to .obj file
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315 Symbol *toSymbol();
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316 #endif
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317
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318 InterfaceDeclaration *isInterfaceDeclaration() { return this; }
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319
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320 #if IN_LLVM
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321 void codegen(Ir*);
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322 #endif
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323 };
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324
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325 #endif /* DMD_AGGREGATE_H */