Mercurial > projects > ldc
annotate dmd2/template.h @ 1589:27948fd2e7ef
Fix bug in nested13 minitest.
Void functions may no longer return non-void expressions.
author | Christian Kamm <kamm incasoftware de> |
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date | Sat, 07 Nov 2009 11:01:49 +0100 |
parents | 54b3c1394d62 |
children |
rev | line source |
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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) 1999-2009 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_TEMPLATE_H |
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12 #define DMD_TEMPLATE_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 #if IN_LLVM |
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18 #include <string> |
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19 #endif |
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20 #include "root.h" |
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21 #include "arraytypes.h" |
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22 #include "dsymbol.h" |
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23 #if IN_LLVM |
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24 #include "mtype.h" |
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25 #endif |
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26 |
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27 struct OutBuffer; |
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28 struct Identifier; |
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29 struct TemplateInstance; |
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30 struct TemplateParameter; |
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31 struct TemplateTypeParameter; |
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32 struct TemplateThisParameter; |
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33 struct TemplateValueParameter; |
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34 struct TemplateAliasParameter; |
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35 struct TemplateTupleParameter; |
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36 struct Type; |
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37 struct TypeTypeof; |
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38 struct Scope; |
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39 struct Expression; |
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40 struct AliasDeclaration; |
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41 struct FuncDeclaration; |
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42 struct HdrGenState; |
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43 enum MATCH; |
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44 |
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45 struct Tuple : Object |
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46 { |
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47 Objects objects; |
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48 |
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49 int dyncast() { return DYNCAST_TUPLE; } // kludge for template.isType() |
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50 }; |
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51 |
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52 |
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53 struct TemplateDeclaration : ScopeDsymbol |
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54 { |
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55 TemplateParameters *parameters; // array of TemplateParameter's |
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56 |
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57 TemplateParameters *origParameters; // originals for Ddoc |
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58 Expression *constraint; |
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59 Array instances; // array of TemplateInstance's |
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60 |
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61 TemplateDeclaration *overnext; // next overloaded TemplateDeclaration |
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62 TemplateDeclaration *overroot; // first in overnext list |
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63 |
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64 int semanticRun; // 1 semantic() run |
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65 |
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66 Dsymbol *onemember; // if !=NULL then one member of this template |
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67 |
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68 int literal; // this template declaration is a literal |
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69 |
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70 TemplateDeclaration(Loc loc, Identifier *id, TemplateParameters *parameters, |
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71 Expression *constraint, Array *decldefs); |
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72 Dsymbol *syntaxCopy(Dsymbol *); |
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73 void semantic(Scope *sc); |
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74 int overloadInsert(Dsymbol *s); |
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75 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); |
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76 const char *kind(); |
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77 char *toChars(); |
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78 |
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79 void emitComment(Scope *sc); |
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80 // void toDocBuffer(OutBuffer *buf); |
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81 |
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82 MATCH matchWithInstance(TemplateInstance *ti, Objects *atypes, int flag); |
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83 MATCH leastAsSpecialized(TemplateDeclaration *td2); |
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84 |
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85 MATCH deduceFunctionTemplateMatch(Loc loc, Objects *targsi, Expression *ethis, Expressions *fargs, Objects *dedargs); |
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86 FuncDeclaration *deduceFunctionTemplate(Scope *sc, Loc loc, Objects *targsi, Expression *ethis, Expressions *fargs, int flags = 0); |
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87 void declareParameter(Scope *sc, TemplateParameter *tp, Object *o); |
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88 |
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89 TemplateDeclaration *isTemplateDeclaration() { return this; } |
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90 |
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91 TemplateTupleParameter *isVariadic(); |
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92 int isOverloadable(); |
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93 |
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94 #if IN_LLVM |
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95 // LDC |
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96 std::string intrinsicName; |
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97 #endif |
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98 }; |
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99 |
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100 struct TemplateParameter |
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101 { |
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102 /* For type-parameter: |
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103 * template Foo(ident) // specType is set to NULL |
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104 * template Foo(ident : specType) |
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105 * For value-parameter: |
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106 * template Foo(valType ident) // specValue is set to NULL |
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107 * template Foo(valType ident : specValue) |
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108 * For alias-parameter: |
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109 * template Foo(alias ident) |
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110 * For this-parameter: |
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111 * template Foo(this ident) |
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112 */ |
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113 |
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114 Loc loc; |
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115 Identifier *ident; |
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116 |
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117 Declaration *sparam; |
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118 |
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119 TemplateParameter(Loc loc, Identifier *ident); |
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120 |
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121 virtual TemplateTypeParameter *isTemplateTypeParameter(); |
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122 virtual TemplateValueParameter *isTemplateValueParameter(); |
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123 virtual TemplateAliasParameter *isTemplateAliasParameter(); |
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124 #if DMDV2 |
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125 virtual TemplateThisParameter *isTemplateThisParameter(); |
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126 #endif |
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127 virtual TemplateTupleParameter *isTemplateTupleParameter(); |
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128 |
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129 virtual TemplateParameter *syntaxCopy() = 0; |
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130 virtual void declareParameter(Scope *sc) = 0; |
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131 virtual void semantic(Scope *) = 0; |
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132 virtual void print(Object *oarg, Object *oded) = 0; |
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133 virtual void toCBuffer(OutBuffer *buf, HdrGenState *hgs) = 0; |
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134 virtual Object *specialization() = 0; |
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135 virtual Object *defaultArg(Loc loc, Scope *sc) = 0; |
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136 |
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137 /* If TemplateParameter's match as far as overloading goes. |
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138 */ |
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139 virtual int overloadMatch(TemplateParameter *) = 0; |
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140 |
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141 /* Match actual argument against parameter. |
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142 */ |
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143 virtual MATCH matchArg(Scope *sc, Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam, int flags = 0) = 0; |
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144 |
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145 /* Create dummy argument based on parameter. |
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146 */ |
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147 virtual void *dummyArg() = 0; |
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148 }; |
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149 |
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150 struct TemplateTypeParameter : TemplateParameter |
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151 { |
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152 /* Syntax: |
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153 * ident : specType = defaultType |
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154 */ |
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155 Type *specType; // type parameter: if !=NULL, this is the type specialization |
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156 Type *defaultType; |
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157 |
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158 TemplateTypeParameter(Loc loc, Identifier *ident, Type *specType, Type *defaultType); |
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159 |
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160 TemplateTypeParameter *isTemplateTypeParameter(); |
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161 TemplateParameter *syntaxCopy(); |
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162 void declareParameter(Scope *sc); |
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163 void semantic(Scope *); |
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164 void print(Object *oarg, Object *oded); |
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165 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); |
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166 Object *specialization(); |
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167 Object *defaultArg(Loc loc, Scope *sc); |
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168 int overloadMatch(TemplateParameter *); |
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169 MATCH matchArg(Scope *sc, Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam, int flags); |
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170 void *dummyArg(); |
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171 }; |
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172 |
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173 #if DMDV2 |
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174 struct TemplateThisParameter : TemplateTypeParameter |
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175 { |
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176 /* Syntax: |
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177 * this ident : specType = defaultType |
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178 */ |
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179 Type *specType; // type parameter: if !=NULL, this is the type specialization |
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180 Type *defaultType; |
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181 |
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182 TemplateThisParameter(Loc loc, Identifier *ident, Type *specType, Type *defaultType); |
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183 |
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184 TemplateThisParameter *isTemplateThisParameter(); |
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185 TemplateParameter *syntaxCopy(); |
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186 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); |
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187 }; |
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188 #endif |
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189 |
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190 struct TemplateValueParameter : TemplateParameter |
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191 { |
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192 /* Syntax: |
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193 * valType ident : specValue = defaultValue |
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194 */ |
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195 |
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196 Type *valType; |
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197 Expression *specValue; |
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198 Expression *defaultValue; |
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199 |
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200 static Expression *edummy; |
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201 |
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202 TemplateValueParameter(Loc loc, Identifier *ident, Type *valType, Expression *specValue, Expression *defaultValue); |
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203 |
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204 TemplateValueParameter *isTemplateValueParameter(); |
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205 TemplateParameter *syntaxCopy(); |
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206 void declareParameter(Scope *sc); |
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207 void semantic(Scope *); |
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208 void print(Object *oarg, Object *oded); |
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209 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); |
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210 Object *specialization(); |
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211 Object *defaultArg(Loc loc, Scope *sc); |
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212 int overloadMatch(TemplateParameter *); |
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213 MATCH matchArg(Scope *sc, Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam, int flags); |
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214 void *dummyArg(); |
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215 }; |
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216 |
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217 struct TemplateAliasParameter : TemplateParameter |
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218 { |
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219 /* Syntax: |
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220 * specType ident : specAlias = defaultAlias |
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221 */ |
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222 |
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223 Type *specType; |
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224 Object *specAlias; |
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225 Object *defaultAlias; |
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226 |
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227 static Dsymbol *sdummy; |
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228 |
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229 TemplateAliasParameter(Loc loc, Identifier *ident, Type *specType, Object *specAlias, Object *defaultAlias); |
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230 |
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231 TemplateAliasParameter *isTemplateAliasParameter(); |
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232 TemplateParameter *syntaxCopy(); |
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233 void declareParameter(Scope *sc); |
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234 void semantic(Scope *); |
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235 void print(Object *oarg, Object *oded); |
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236 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); |
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237 Object *specialization(); |
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238 Object *defaultArg(Loc loc, Scope *sc); |
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239 int overloadMatch(TemplateParameter *); |
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240 MATCH matchArg(Scope *sc, Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam, int flags); |
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241 void *dummyArg(); |
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242 }; |
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243 |
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244 struct TemplateTupleParameter : TemplateParameter |
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245 { |
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246 /* Syntax: |
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247 * ident ... |
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248 */ |
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249 |
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250 TemplateTupleParameter(Loc loc, Identifier *ident); |
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251 |
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252 TemplateTupleParameter *isTemplateTupleParameter(); |
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253 TemplateParameter *syntaxCopy(); |
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254 void declareParameter(Scope *sc); |
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255 void semantic(Scope *); |
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256 void print(Object *oarg, Object *oded); |
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257 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); |
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258 Object *specialization(); |
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259 Object *defaultArg(Loc loc, Scope *sc); |
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260 int overloadMatch(TemplateParameter *); |
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261 MATCH matchArg(Scope *sc, Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam, int flags); |
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262 void *dummyArg(); |
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263 }; |
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264 |
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265 struct TemplateInstance : ScopeDsymbol |
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266 { |
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267 /* Given: |
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268 * foo!(args) => |
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269 * name = foo |
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270 * tiargs = args |
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271 */ |
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272 Identifier *name; |
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273 //Array idents; |
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274 Objects *tiargs; // Array of Types/Expressions of template |
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275 // instance arguments [int*, char, 10*10] |
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276 |
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277 Objects tdtypes; // Array of Types/Expressions corresponding |
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278 // to TemplateDeclaration.parameters |
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279 // [int, char, 100] |
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280 |
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281 TemplateDeclaration *tempdecl; // referenced by foo.bar.abc |
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282 TemplateInstance *inst; // refer to existing instance |
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283 TemplateInstance *tinst; // enclosing template instance |
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284 ScopeDsymbol *argsym; // argument symbol table |
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285 AliasDeclaration *aliasdecl; // !=NULL if instance is an alias for its |
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286 // sole member |
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287 WithScopeSymbol *withsym; // if a member of a with statement |
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288 int semanticRun; // has semantic() been done? |
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289 int semantictiargsdone; // has semanticTiargs() been done? |
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290 int nest; // for recursion detection |
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291 int havetempdecl; // 1 if used second constructor |
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292 Dsymbol *isnested; // if referencing local symbols, this is the context |
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293 int errors; // 1 if compiled with errors |
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294 #ifdef IN_GCC |
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295 /* On some targets, it is necessary to know whether a symbol |
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296 will be emitted in the output or not before the symbol |
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297 is used. This can be different from getModule(). */ |
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298 Module * objFileModule; |
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299 #endif |
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300 |
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301 TemplateInstance(Loc loc, Identifier *temp_id); |
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302 TemplateInstance(Loc loc, TemplateDeclaration *tempdecl, Objects *tiargs); |
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303 static Objects *arraySyntaxCopy(Objects *objs); |
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304 Dsymbol *syntaxCopy(Dsymbol *); |
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305 void semantic(Scope *sc); |
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306 void semantic2(Scope *sc); |
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307 void semantic3(Scope *sc); |
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308 void inlineScan(); |
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309 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); |
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310 Dsymbol *toAlias(); // resolve real symbol |
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311 const char *kind(); |
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312 int oneMember(Dsymbol **ps); |
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313 char *toChars(); |
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314 char *mangle(); |
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315 void printInstantiationTrace(); |
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316 |
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317 #if IN_DMD |
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318 void toObjFile(int multiobj); // compile to .obj file |
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319 #endif |
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320 |
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321 // Internal |
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322 static void semanticTiargs(Loc loc, Scope *sc, Objects *tiargs, int flags); |
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323 void semanticTiargs(Scope *sc); |
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324 TemplateDeclaration *findTemplateDeclaration(Scope *sc); |
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325 TemplateDeclaration *findBestMatch(Scope *sc); |
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326 void declareParameters(Scope *sc); |
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327 int hasNestedArgs(Objects *tiargs); |
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328 Identifier *genIdent(); |
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329 |
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330 TemplateInstance *isTemplateInstance() { return this; } |
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331 AliasDeclaration *isAliasDeclaration(); |
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332 |
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333 #if IN_LLVM |
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334 // LDC |
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335 Module* tmodule; // module from outermost enclosing template instantiation |
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336 Module* emittedInModule; // which module this template instance has been emitted in |
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337 |
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338 void codegen(Ir*); |
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339 #endif |
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340 }; |
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|
341 |
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342 struct TemplateMixin : TemplateInstance |
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343 { |
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344 Array *idents; |
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345 Type *tqual; |
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|
346 |
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347 TemplateMixin(Loc loc, Identifier *ident, Type *tqual, Array *idents, Objects *tiargs); |
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348 Dsymbol *syntaxCopy(Dsymbol *s); |
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349 void semantic(Scope *sc); |
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350 void semantic2(Scope *sc); |
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351 void semantic3(Scope *sc); |
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352 void inlineScan(); |
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353 const char *kind(); |
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354 int oneMember(Dsymbol **ps); |
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355 int hasPointers(); |
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356 char *toChars(); |
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357 char *mangle(); |
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358 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); |
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359 |
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360 #if IN_DMD |
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361 void toObjFile(int multiobj); // compile to .obj file |
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362 #endif |
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363 |
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364 TemplateMixin *isTemplateMixin() { return this; } |
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365 |
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366 #if IN_LLVM |
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367 void codegen(Ir*); |
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368 #endif |
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369 }; |
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|
370 |
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371 Expression *isExpression(Object *o); |
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372 Dsymbol *isDsymbol(Object *o); |
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373 Type *isType(Object *o); |
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374 Tuple *isTuple(Object *o); |
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375 Type *getType(Object *o); |
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376 Dsymbol *getDsymbol(Object *o); |
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377 |
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378 void ObjectToCBuffer(OutBuffer *buf, HdrGenState *hgs, Object *oarg); |
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379 |
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380 #endif /* DMD_TEMPLATE_H */ |