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annotate gen/declarations.cpp @ 1228:79758fd2f48a

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Added Doxygen file. Completely seperated type and symbol generation. Should fix a lot of bugs, but is not yet 100% complete.
author Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
date Wed, 15 Apr 2009 20:06:25 +0200
parents 5ebe8224988b
children 48747003a5de
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1 #include "gen/llvm.h"
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2
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3 #include "aggregate.h"
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4 #include "declaration.h"
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5 #include "enum.h"
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6 #include "id.h"
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7 #include "mem.h"
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8 #include "template.h"
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9
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10 #include "gen/irstate.h"
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11 #include "gen/tollvm.h"
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12 #include "gen/llvmhelpers.h"
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13 #include "gen/logger.h"
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14
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15 #include "ir/ir.h"
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16 #include "ir/irvar.h"
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17 #include "ir/irtype.h"
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18 #include "ir/irtypestruct.h"
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19
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20 /* ================================================================== */
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21
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22 void Dsymbol::codegen(Ir*)
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23 {
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24 Logger::println("Ignoring Dsymbol::toObjFile for %s", toChars());
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25 }
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26
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27 /* ================================================================== */
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28
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29 void Declaration::codegen(Ir*)
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30 {
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31 Logger::println("Ignoring Declaration::toObjFile for %s", toChars());
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32 }
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33
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34 /* ================================================================== */
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35
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36 void InterfaceDeclaration::codegen(Ir*)
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37 {
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38 //Logger::println("Ignoring InterfaceDeclaration::toObjFile for %s", toChars());
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39 DtoResolveDsymbol(this);
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40 }
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41
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42 /* ================================================================== */
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43
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44 void StructDeclaration::codegen(Ir*)
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45 {
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46 DtoResolveDsymbol(this);
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47 }
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48
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49 /* ================================================================== */
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50
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51 void ClassDeclaration::codegen(Ir*)
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52 {
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53 DtoResolveDsymbol(this);
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54 }
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55
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56 /* ================================================================== */
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57
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58 void TupleDeclaration::codegen(Ir* p)
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59 {
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60 Logger::println("TupleDeclaration::toObjFile(): %s", toChars());
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61
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62 assert(isexp);
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63 assert(objects);
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64
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65 int n = objects->dim;
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66
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67 for (int i=0; i < n; ++i)
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68 {
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69 DsymbolExp* exp = (DsymbolExp*)objects->data[i];
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70 assert(exp->op == TOKdsymbol);
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71 exp->s->codegen(p);
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72 }
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73 }
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74
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75 /* ================================================================== */
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76
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77 // FIXME: this is horrible!!!
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78
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79 void VarDeclaration::codegen(Ir* p)
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80 {
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81 Logger::print("VarDeclaration::toObjFile(): %s | %s\n", toChars(), type->toChars());
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82 LOG_SCOPE;
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83
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84 // just forward aliases
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85 if (aliassym)
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86 {
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87 Logger::println("alias sym");
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88 toAlias()->codegen(p);
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89 return;
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90 }
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91
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92 // output the parent aggregate first
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93 if (AggregateDeclaration* ad = isMember())
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94 ad->codegen(p);
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95
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96 // global variable
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97 #if DMDV2
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98 // taken from dmd2/structs
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99 if (isDataseg() || (storage_class & (STCconst | STCinvariant) && init))
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100 #else
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101 if (isDataseg())
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102 #endif
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103 {
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104 Logger::println("data segment");
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105
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106 #if DMDV2
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107 if (storage_class & STCmanifest)
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108 {
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109 assert(0 && "manifest constant being codegened!!!");
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110 }
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111 #endif
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112
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113 // don't duplicate work
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114 if (this->ir.resolved) return;
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115 this->ir.resolved = true;
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116 this->ir.declared = true;
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117
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118 this->ir.irGlobal = new IrGlobal(this);
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119
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120 Logger::println("parent: %s (%s)", parent->toChars(), parent->kind());
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121
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122 #if DMDV2
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123 // not sure why this is only needed for d2
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124 bool _isconst = isConst() && init;
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125 #else
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126 bool _isconst = isConst();
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127 #endif
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128
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129
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130 Logger::println("Creating global variable");
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131
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132 const LLType* _type = this->ir.irGlobal->type.get();
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133 llvm::GlobalValue::LinkageTypes _linkage = DtoLinkage(this);
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134 std::string _name(mangle());
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135
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136 llvm::GlobalVariable* gvar = new llvm::GlobalVariable(_type,_isconst,_linkage,NULL,_name,gIR->module);
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137 this->ir.irGlobal->value = gvar;
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138
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139 if (Logger::enabled())
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140 Logger::cout() << *gvar << '\n';
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141
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142 // if this global is used from a nested function, this is necessary or
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143 // optimization could potentially remove the global (if it's the only use)
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144 if (nakedUse)
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145 gIR->usedArray.push_back(DtoBitCast(gvar, getVoidPtrType()));
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146
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147 // initialize
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148 DtoConstInitGlobal(this);
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149 }
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150 }
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151
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152 /* ================================================================== */
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153
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154 void TypedefDeclaration::codegen(Ir*)
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155 {
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156 Logger::print("TypedefDeclaration::toObjFile: %s\n", toChars());
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157 LOG_SCOPE;
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158
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159 // generate typeinfo
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160 DtoTypeInfoOf(type, false);
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161 }
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162
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163 /* ================================================================== */
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164
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165 void EnumDeclaration::codegen(Ir*)
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166 {
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167 Logger::println("Ignoring EnumDeclaration::toObjFile for %s", toChars());
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168 }
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169
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170 /* ================================================================== */
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171
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172 void FuncDeclaration::codegen(Ir* p)
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173 {
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174 // don't touch function aliases, they don't contribute any new symbols
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175 if (!isFuncAliasDeclaration())
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176 {
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177 DtoResolveDsymbol(this);
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178 }
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179 }
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180
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181 /* ================================================================== */
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182
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183 void TemplateInstance::codegen(Ir* p)
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184 {
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185 #if LOG
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186 printf("TemplateInstance::toObjFile('%s', this = %p)\n", toChars(), this);
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187 #endif
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188 if (!errors && members)
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189 {
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190 for (int i = 0; i < members->dim; i++)
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191 {
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192 Dsymbol *s = (Dsymbol *)members->data[i];
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193 s->codegen(p);
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194 }
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195 }
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196 }
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197
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198 /* ================================================================== */
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199
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200 void TemplateMixin::codegen(Ir* p)
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201 {
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202 TemplateInstance::codegen(p);
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203 }
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204
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205 /* ================================================================== */
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206
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207 void AttribDeclaration::codegen(Ir* p)
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208 {
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209 Array *d = include(NULL, NULL);
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210
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211 if (d)
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212 {
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213 for (unsigned i = 0; i < d->dim; i++)
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214 { Dsymbol *s = (Dsymbol *)d->data[i];
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215 s->codegen(p);
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216 }
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217 }
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218 }
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219
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220 /* ================================================================== */
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221
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222 void obj_includelib(const char* lib);
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223
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224 void PragmaDeclaration::codegen(Ir* p)
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225 {
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226 if (ident == Id::lib)
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227 {
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228 assert(args && args->dim == 1);
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229
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230 Expression *e = (Expression *)args->data[0];
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231
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232 assert(e->op == TOKstring);
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233
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234 StringExp *se = (StringExp *)e;
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235 char *name = (char *)mem.malloc(se->len + 1);
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236 memcpy(name, se->string, se->len);
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237 name[se->len] = 0;
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238 obj_includelib(name);
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239 }
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240 AttribDeclaration::codegen(p);
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241 }
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242
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243 /* ================================================================== */