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annotate dmd2/aggregate.h @ 843:880b7aa29aa4

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Automated merge with http://hg.dsource.org/projects/ldc
author Christian Kamm <kamm incasoftware de>
date Fri, 12 Dec 2008 08:18:30 +0100
parents 340acf1535d0
children 638d16625da2
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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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11 #ifndef DMD_AGGREGATE_H
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12 #define DMD_AGGREGATE_H
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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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18 #include "root.h"
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19 #include "dsymbol.h"
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21 #include <vector>
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22 #include <set>
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23 #include <map>
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24
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25 struct Identifier;
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26 struct Type;
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27 struct TypeFunction;
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28 struct Expression;
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29 struct FuncDeclaration;
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30 struct CtorDeclaration;
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31 struct DtorDeclaration;
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32 struct InvariantDeclaration;
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33 struct NewDeclaration;
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34 struct DeleteDeclaration;
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35 struct InterfaceDeclaration;
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36 struct ClassInfoDeclaration;
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37 struct VarDeclaration;
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38 struct dt_t;
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39
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40 namespace llvm
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41 {
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42 class Type;
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43 class Value;
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44 class Constant;
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45 class ConstantStruct;
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46 class GlobalVariable;
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47 }
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48
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49 struct AggregateDeclaration : ScopeDsymbol
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50 {
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51 Type *type;
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52 unsigned storage_class;
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53 enum PROT protection;
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54 Type *handle; // 'this' type
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55 unsigned structsize; // size of struct
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56 unsigned alignsize; // size of struct for alignment purposes
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57 unsigned structalign; // struct member alignment in effect
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58 int hasUnions; // set if aggregate has overlapping fields
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59 Array fields; // VarDeclaration fields
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60 unsigned sizeok; // set when structsize contains valid data
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61 // 0: no size
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62 // 1: size is correct
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63 // 2: cannot determine size; fwd referenced
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64 int isdeprecated; // !=0 if deprecated
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65 Scope *scope; // !=NULL means context to use
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66
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67 // Special member functions
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68 InvariantDeclaration *inv; // invariant
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69 NewDeclaration *aggNew; // allocator
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70 DeleteDeclaration *aggDelete; // deallocator
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71
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72 #if DMDV2
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73 CtorDeclaration *ctor;
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74 CtorDeclaration *defaultCtor; // default constructor
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75 #endif
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76
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77 FuncDeclarations dtors; // Array of destructors
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78 FuncDeclaration *dtor; // aggregate destructor
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79
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80 #ifdef IN_GCC
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81 Array methods; // flat list of all methods for debug information
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82 #endif
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83
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84 AggregateDeclaration(Loc loc, Identifier *id);
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85 void semantic2(Scope *sc);
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86 void semantic3(Scope *sc);
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87 void inlineScan();
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88 unsigned size(Loc loc);
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89 static void alignmember(unsigned salign, unsigned size, unsigned *poffset);
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90 Type *getType();
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91 void addField(Scope *sc, VarDeclaration *v);
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92 int isDeprecated(); // is aggregate deprecated?
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93 FuncDeclaration *buildDtor(Scope *sc);
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94
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95 void emitComment(Scope *sc);
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96 void toDocBuffer(OutBuffer *buf);
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97
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98 // For access checking
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99 virtual PROT getAccess(Dsymbol *smember); // determine access to smember
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100 int isFriendOf(AggregateDeclaration *cd);
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101 int hasPrivateAccess(Dsymbol *smember); // does smember have private access to members of this class?
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102 void accessCheck(Loc loc, Scope *sc, Dsymbol *smember);
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103
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104 enum PROT prot();
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105
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106 // Back end
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107 Symbol *stag; // tag symbol for debug data
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108 Symbol *sinit;
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109 Symbol *toInitializer();
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110
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111 AggregateDeclaration *isAggregateDeclaration() { return this; }
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112 };
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113
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114 struct AnonymousAggregateDeclaration : AggregateDeclaration
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115 {
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116 AnonymousAggregateDeclaration()
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117 : AggregateDeclaration(0, NULL)
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118 {
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119 }
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120
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121 AnonymousAggregateDeclaration *isAnonymousAggregateDeclaration() { return this; }
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122 };
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123
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124 struct StructDeclaration : AggregateDeclaration
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125 {
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126 int zeroInit; // !=0 if initialize with 0 fill
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127 #if DMDV2
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128 int hasIdentityAssign; // !=0 if has identity opAssign
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129 FuncDeclaration *cpctor; // generated copy-constructor, if any
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130
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131 FuncDeclarations postblits; // Array of postblit functions
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132 FuncDeclaration *postblit; // aggregate postblit
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133 #endif
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134
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135 StructDeclaration(Loc loc, Identifier *id);
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136 Dsymbol *syntaxCopy(Dsymbol *s);
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137 void semantic(Scope *sc);
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138 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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139 char *mangle();
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140 const char *kind();
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141 int needOpAssign();
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142 FuncDeclaration *buildOpAssign(Scope *sc);
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143 FuncDeclaration *buildPostBlit(Scope *sc);
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144 FuncDeclaration *buildCpCtor(Scope *sc);
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145 void toDocBuffer(OutBuffer *buf);
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146
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147 PROT getAccess(Dsymbol *smember); // determine access to smember
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148
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149 void toObjFile(int multiobj); // compile to .obj file
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150 void toDt(dt_t **pdt);
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151 void toDebug(); // to symbolic debug info
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152
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153 StructDeclaration *isStructDeclaration() { return this; }
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154 };
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155
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156 struct UnionDeclaration : StructDeclaration
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157 {
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158 UnionDeclaration(Loc loc, Identifier *id);
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159 Dsymbol *syntaxCopy(Dsymbol *s);
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160 const char *kind();
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161
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162 UnionDeclaration *isUnionDeclaration() { return this; }
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163 };
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164
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165 struct BaseClass
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166 {
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167 Type *type; // (before semantic processing)
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168 enum PROT protection; // protection for the base interface
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169
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170 ClassDeclaration *base;
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171 int offset; // 'this' pointer offset
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172 Array vtbl; // for interfaces: Array of FuncDeclaration's
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173 // making up the vtbl[]
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174
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175 int baseInterfaces_dim;
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176 BaseClass *baseInterfaces; // if BaseClass is an interface, these
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177 // are a copy of the InterfaceDeclaration::interfaces
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178
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179 BaseClass();
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180 BaseClass(Type *type, enum PROT protection);
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181
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182 int fillVtbl(ClassDeclaration *cd, Array *vtbl, int newinstance);
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183 void copyBaseInterfaces(BaseClasses *);
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184 };
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185
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186 #if DMDV2
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187 #define CLASSINFO_SIZE (0x3C+16) // value of ClassInfo.size
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188 #else
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189 #define CLASSINFO_SIZE (0x3C+12) // value of ClassInfo.size
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190 #endif
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191
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192 struct ClassDeclaration : AggregateDeclaration
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193 {
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194 static ClassDeclaration *object;
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195 static ClassDeclaration *classinfo;
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196
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197 ClassDeclaration *baseClass; // NULL only if this is Object
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198 FuncDeclaration *staticCtor;
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199 FuncDeclaration *staticDtor;
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200 Array vtbl; // Array of FuncDeclaration's making up the vtbl[]
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201 Array vtblFinal; // More FuncDeclaration's that aren't in vtbl[]
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202
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203 BaseClasses baseclasses; // Array of BaseClass's; first is super,
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204 // rest are Interface's
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205
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206 int interfaces_dim;
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207 BaseClass **interfaces; // interfaces[interfaces_dim] for this class
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208 // (does not include baseClass)
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209
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210 BaseClasses *vtblInterfaces; // array of base interfaces that have
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211 // their own vtbl[]
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212
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213 ClassInfoDeclaration *vclassinfo; // the ClassInfo object for this ClassDeclaration
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214 int com; // !=0 if this is a COM class (meaning
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215 // it derives from IUnknown)
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216 int isauto; // !=0 if this is an auto class
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217 int isabstract; // !=0 if abstract class
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218
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219 int isnested; // !=0 if is nested
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220 VarDeclaration *vthis; // 'this' parameter if this class is nested
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221
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222 int inuse; // to prevent recursive attempts
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223
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224 ClassDeclaration(Loc loc, Identifier *id, BaseClasses *baseclasses);
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225 Dsymbol *syntaxCopy(Dsymbol *s);
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226 void semantic(Scope *sc);
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227 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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228 int isBaseOf2(ClassDeclaration *cd);
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229
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230 #define OFFSET_RUNTIME 0x76543210
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231 virtual int isBaseOf(ClassDeclaration *cd, int *poffset);
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232
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233 Dsymbol *search(Loc, Identifier *ident, int flags);
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234 #if DMDV2
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235 int isFuncHidden(FuncDeclaration *fd);
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236 #endif
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237 FuncDeclaration *findFunc(Identifier *ident, TypeFunction *tf);
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238 void interfaceSemantic(Scope *sc);
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239 int isNested();
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240 int isCOMclass();
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241 virtual int isCOMinterface();
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242 #if DMDV2
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243 virtual int isCPPinterface();
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244 #endif
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245 int isAbstract();
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246 virtual int vtblOffset();
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247 const char *kind();
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248 char *mangle();
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249 void toDocBuffer(OutBuffer *buf);
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250
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251 PROT getAccess(Dsymbol *smember); // determine access to smember
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252
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253 void addLocalClass(ClassDeclarations *);
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254
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255 // Back end
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256 void toObjFile(int multiobj); // compile to .obj file
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257 void toDebug();
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258 unsigned baseVtblOffset(BaseClass *bc);
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259 Symbol *toSymbol();
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260 Symbol *toVtblSymbol();
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261 void toDt(dt_t **pdt);
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262 void toDt2(dt_t **pdt, ClassDeclaration *cd);
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263
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264 Symbol *vtblsym;
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265
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266 ClassDeclaration *isClassDeclaration() { return (ClassDeclaration *)this; }
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267 };
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268
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269 struct InterfaceDeclaration : ClassDeclaration
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270 {
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271 #if DMDV2
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272 int cpp; // !=0 if this is a C++ interface
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273 #endif
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274 InterfaceDeclaration(Loc loc, Identifier *id, BaseClasses *baseclasses);
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275 Dsymbol *syntaxCopy(Dsymbol *s);
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276 void semantic(Scope *sc);
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277 int isBaseOf(ClassDeclaration *cd, int *poffset);
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278 int isBaseOf(BaseClass *bc, int *poffset);
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279 const char *kind();
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280 int vtblOffset();
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281 #if DMDV2
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282 int isCPPinterface();
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283 #endif
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284 virtual int isCOMinterface();
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285
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286 void toObjFile(int multiobj); // compile to .obj file
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287 Symbol *toSymbol();
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288
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289 InterfaceDeclaration *isInterfaceDeclaration() { return this; }
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290 };
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291
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292 #endif /* DMD_AGGREGATE_H */