1 | #include "ReplacePseudoFunc.hpp" |
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2 | |
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3 | #include <set> |
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4 | |
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5 | #include "AST/Decl.hpp" |
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6 | #include "AST/Inspect.hpp" |
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7 | #include "AST/Pass.hpp" |
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8 | #include "AST/Stmt.hpp" |
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9 | #include "Common/utility.h" |
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10 | #include "ResolvExpr/Resolver.h" |
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11 | #include "SymTab/Mangler.h" |
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12 | |
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13 | #include "AST/Print.hpp" |
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14 | |
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15 | #include "ResolvExpr/CandidateFinder.hpp" |
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16 | |
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17 | namespace Validate { |
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18 | |
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19 | namespace { |
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20 | |
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21 | std::set<std::string> queryLabels; |
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22 | std::set<std::string> queryValues; |
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23 | |
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24 | // struct AutoInit { |
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25 | // ast::EnumDecl const* postvisit( const ast::EnumDecl* expr ); |
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26 | // }; |
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27 | |
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28 | struct WrapEnumValueExpr final : public ast::WithShortCircuiting, |
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29 | public ast::WithSymbolTable, |
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30 | public ast::WithConstTranslationUnit { |
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31 | void previsit(const ast::DeclStmt* expr); |
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32 | void previsit(const ast::ApplicationExpr* expr); |
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33 | void previsit(const ast::CastExpr* expr); |
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34 | void previsit(const ast::VariableExpr* ) { visit_children = false; } |
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35 | |
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36 | ast::Expr const* postvisit(const ast::VariableExpr* expr); |
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37 | }; |
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38 | |
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39 | struct FindGenEnumArray final : public ast::WithShortCircuiting { |
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40 | void previsit(const ast::ApplicationExpr* enumDecl); |
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41 | }; |
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42 | |
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43 | struct PseudoFuncGenerateRoutine final : public ast::WithDeclsToAdd<>, |
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44 | public ast::WithSymbolTable, |
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45 | public ast::WithShortCircuiting, |
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46 | public ast::WithConstTranslationUnit { |
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47 | void previsit(const ast::EnumDecl* enumDecl); |
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48 | }; |
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49 | |
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50 | struct ReplacePseudoFuncCore : public ast::WithShortCircuiting, |
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51 | public ast::WithSymbolTable, |
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52 | public ast::WithConstTranslationUnit { |
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53 | ast::Expr const* postvisit(ast::ApplicationExpr const* decl); |
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54 | }; |
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55 | |
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56 | // ast::EnumDecl const * AutoInit::postvisit( const ast::EnumDecl * expr ) { |
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57 | // for ( size_t i = 0; i < expr->members.size(); i++ ) { |
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58 | // auto mem = expr->members[i].as<ast::ObjectDecl>(); |
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59 | // assert( mem ); |
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60 | // if ( mem->init ) |
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61 | // } |
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62 | // return expr; |
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63 | // } |
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64 | |
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65 | void WrapEnumValueExpr::previsit(const ast::ApplicationExpr* expr) { |
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66 | auto varExpr = expr->func.as<ast::VariableExpr>(); |
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67 | auto fname = ast::getFunctionName(expr); |
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68 | if ( !varExpr || varExpr->var->linkage == ast::Linkage::Intrinsic ) { |
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69 | if ( fname == "?{}" || fname == "?=?" ) |
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70 | visit_children = false; |
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71 | } |
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72 | |
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73 | if (fname == "labelE" || fname == "valueE" || fname == "posE") { |
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74 | visit_children = false; |
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75 | } |
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76 | } |
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77 | |
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78 | void WrapEnumValueExpr::previsit(const ast::DeclStmt*) { |
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79 | visit_children = false; |
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80 | } |
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81 | |
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82 | void WrapEnumValueExpr::previsit(const ast::CastExpr* expr) { |
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83 | if (expr->result && expr->result.as<ast::ReferenceType>()) { |
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84 | visit_children = false; |
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85 | } |
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86 | } |
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87 | |
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88 | ast::Expr const* WrapEnumValueExpr::postvisit(const ast::VariableExpr* expr) { |
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89 | if (!expr->result) { |
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90 | return expr; |
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91 | } |
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92 | if (auto enumInst = expr->result.as<ast::EnumInstType>()) { |
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93 | if (enumInst->base && enumInst->base->base) { |
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94 | auto untyped = new ast::UntypedExpr( |
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95 | expr->location, new ast::NameExpr(expr->location, "valueE"), |
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96 | { std::move( expr ) }); |
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97 | ResolvExpr::ResolveContext context{symtab, transUnit().global}; |
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98 | auto result = ResolvExpr::findVoidExpression(untyped, context); |
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99 | ast::ptr<ast::ApplicationExpr> ret = |
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100 | result.strict_as<ast::ApplicationExpr>(); |
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101 | return ast::deepCopy( ret ); |
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102 | } |
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103 | } |
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104 | return expr; |
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105 | } |
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106 | |
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107 | void FindGenEnumArray::previsit(const ast::ApplicationExpr* expr) { |
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108 | auto fname = ast::getFunctionName(expr); |
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109 | if (fname == "labelE" || fname == "valueE") { |
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110 | if (expr->args.size() != 1) { |
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111 | SemanticError(expr, "Position Expression only take one parameter"); |
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112 | } |
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113 | const ast::VariableExpr* arg = |
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114 | expr->args.front().as<const ast::VariableExpr>(); |
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115 | if (!arg) { |
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116 | SemanticError(expr, "Unimplement Pseudo Function Cases"); |
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117 | } |
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118 | const ast::ObjectDecl* argAsVar = arg->var.as<const ast::ObjectDecl>(); |
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119 | const std::string referredName = argAsVar->name; |
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120 | const ast::EnumInstType* argType = |
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121 | argAsVar->type.as<const ast::EnumInstType>(); |
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122 | if (!argType) { |
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123 | SemanticError( |
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124 | argAsVar, |
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125 | "Position can only be used on an enumeration instance"); |
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126 | } |
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127 | ast::ptr<ast::EnumDecl> base = argType->base; |
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128 | assert(base); |
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129 | if (fname == "labelE") queryLabels.insert(base->name); |
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130 | if (fname == "valueE") queryValues.insert(base->name); |
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131 | } |
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132 | } |
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133 | |
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134 | const ast::Init * getAutoInit( const CodeLocation & location, |
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135 | const ast::Type * type, ResolvExpr::ResolveContext context, const ast::Init * prev ) { |
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136 | if ( auto prevInit = dynamic_cast< const ast::SingleInit * >( prev ) ) { |
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137 | auto prevInitExpr = prevInit->value; |
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138 | if ( auto constInit = prevInitExpr.as< ast::ConstantExpr >() ) { |
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139 | // Assume no string literal for now |
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140 | return new ast::SingleInit( |
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141 | location, |
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142 | ast::ConstantExpr::from_int( |
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143 | location, constInit->intValue() + 1 ) |
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144 | ); |
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145 | } else { |
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146 | auto untypedThisInit = new ast::UntypedExpr( |
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147 | location, |
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148 | new ast::NameExpr( location, "?++" ), |
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149 | { prevInitExpr } |
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150 | ); |
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151 | auto typedInit = ResolvExpr::findSingleExpression(untypedThisInit, type, |
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152 | context ); |
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153 | return new ast::SingleInit( location, typedInit ); |
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154 | } |
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155 | } |
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156 | SemanticError( prev, "Auto Init a List is not implemented" ); |
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157 | return prev; |
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158 | } |
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159 | |
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160 | void PseudoFuncGenerateRoutine::previsit(const ast::EnumDecl* enumDecl) { |
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161 | visit_children = false; |
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162 | const CodeLocation& location = enumDecl->location; |
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163 | if (enumDecl->members.size() == 0 || !enumDecl->base) return; |
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164 | |
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165 | std::vector<ast::ptr<ast::Init>> inits; |
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166 | std::vector<ast::ptr<ast::Init>> labels; |
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167 | auto type = enumDecl->base; |
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168 | |
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169 | for ( size_t i = 0; i < enumDecl->members.size(); i++ ) { |
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170 | ast::ptr<ast::Decl> mem = enumDecl->members.at( i ); |
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171 | auto memAsObjectDecl = mem.as< ast::ObjectDecl >(); |
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172 | assert( memAsObjectDecl ); |
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173 | if ( memAsObjectDecl->init ) { |
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174 | inits.emplace_back( memAsObjectDecl->init ); |
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175 | } else { |
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176 | const CodeLocation & location = mem->location; |
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177 | if ( i == 0 ) { |
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178 | inits.emplace_back( new ast::SingleInit( |
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179 | location, |
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180 | ast::ConstantExpr::from_int( mem->location, 0 ) |
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181 | ) ); |
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182 | } else { |
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183 | inits.emplace_back( getAutoInit( location, enumDecl->base, |
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184 | ResolvExpr::ResolveContext{symtab, transUnit().global}, |
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185 | inits.at( i - 1 ).as<ast::SingleInit>()) ); |
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186 | } |
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187 | } |
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188 | labels.emplace_back(new ast::SingleInit( |
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189 | location, ast::ConstantExpr::from_string(location, mem->name))); |
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190 | } |
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191 | if (queryValues.count(enumDecl->name)) { |
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192 | auto init = new ast::ListInit(location, std::move(inits)); |
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193 | const ast::ArrayType* arrT = new ast::ArrayType( |
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194 | enumDecl->base, |
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195 | ast::ConstantExpr::from_int(location, enumDecl->members.size()), |
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196 | ast::LengthFlag::FixedLen, ast::DimensionFlag::DynamicDim); |
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197 | ast::ObjectDecl* values = new ast::ObjectDecl( |
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198 | location, "values_" + enumDecl->name, arrT, init, |
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199 | ast::Storage::Static, ast::Linkage::AutoGen); |
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200 | symtab.addId(values); |
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201 | values->mangleName = Mangle::mangle(values); |
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202 | declsToAddAfter.push_back(values); |
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203 | } |
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204 | if (queryLabels.count(enumDecl->name)) { |
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205 | auto label_strings = new ast::ListInit(location, std::move(labels)); |
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206 | auto labels = new ast::ObjectDecl( |
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207 | location, "labels_" + enumDecl->name, |
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208 | new ast::ArrayType( |
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209 | new ast::PointerType(new ast::BasicType{ast::BasicType::Char}), |
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210 | ast::ConstantExpr::from_int(location, enumDecl->members.size()), |
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211 | ast::LengthFlag::FixedLen, ast::DimensionFlag::DynamicDim), |
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212 | label_strings, ast::Storage::Static, ast::Linkage::AutoGen); |
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213 | symtab.addId(labels); |
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214 | labels->mangleName = Mangle::mangle(labels); |
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215 | declsToAddAfter.push_back(labels); |
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216 | } |
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217 | } |
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218 | |
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219 | ast::ApplicationExpr const* getPseudoFuncApplication( |
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220 | const CodeLocation location, ResolvExpr::ResolveContext context, |
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221 | const ast::VariableExpr* arg, const ast::EnumDecl* base, const std::string & name) { |
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222 | ast::Expr* toResolve = new ast::NameExpr(location, name + base->name); |
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223 | auto result = ResolvExpr::findVoidExpression(toResolve, context); |
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224 | assert(result.get()); |
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225 | auto arrAsVar = result.strict_as<ast::VariableExpr>(); |
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226 | auto untyped = new ast::UntypedExpr( |
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227 | location, new ast::NameExpr(location, "?[?]"), |
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228 | { std::move(arrAsVar), std::move(arg) }); |
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229 | auto typedResult = ResolvExpr::findVoidExpression(untyped, context); |
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230 | |
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231 | ast::ptr<ast::ApplicationExpr> ret = |
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232 | typedResult.strict_as<ast::ApplicationExpr>(); |
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233 | return ast::deepCopy(ret); |
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234 | } |
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235 | |
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236 | ast::Expr const* ReplacePseudoFuncCore::postvisit( |
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237 | ast::ApplicationExpr const* expr) { |
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238 | auto fname = ast::getFunctionName(expr); |
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239 | auto location = expr->location; |
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240 | if (fname == "posE" || fname == "valueE" || fname == "labelE") { |
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241 | if (expr->args.size() != 1) { |
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242 | SemanticError(expr, |
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243 | "Pseudo Enum Expression only take one parameter"); |
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244 | } |
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245 | ast::ptr<ast::VariableExpr> arg = |
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246 | expr->args.front().as<const ast::VariableExpr>(); |
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247 | if (!arg) { |
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248 | SemanticError(expr, "Unimplement Pseudo Function Cases"); |
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249 | } |
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250 | const ast::ObjectDecl* argAsVar = arg->var.as<const ast::ObjectDecl>(); |
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251 | const std::string referredName = argAsVar->name; |
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252 | const ast::EnumInstType* argType = |
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253 | argAsVar->type.as<const ast::EnumInstType>(); |
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254 | if (!argType) { |
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255 | SemanticError(argAsVar, |
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256 | "Pseudo Enum Expression can only be used on an " |
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257 | "enumeration instance"); |
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258 | } |
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259 | const ast::EnumDecl* base = argType->base; |
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260 | ResolvExpr::ResolveContext context{symtab, transUnit().global}; |
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261 | // If resolvable as constant |
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262 | for (size_t i = 0; i < base->members.size(); i++) { |
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263 | if (base->members[i]->name == referredName) { |
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264 | if (fname == "posE") |
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265 | return ast::ConstantExpr::from_int(expr->location, i); |
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266 | else if (fname == "labelE") |
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267 | return ast::ConstantExpr::from_string(expr->location, |
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268 | referredName); |
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269 | else { |
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270 | return getPseudoFuncApplication(location, context, arg.get(), |
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271 | base, "values_"); |
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272 | } |
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273 | |
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274 | } |
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275 | } |
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276 | |
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277 | if (fname == "labelE") { |
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278 | if (auto labelExpr = |
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279 | getPseudoFuncApplication(location, context, arg.get(), base, "labels_")) { |
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280 | return labelExpr; |
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281 | } |
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282 | } else if (fname == "valueE") { |
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283 | if (auto valueExpr = |
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284 | getPseudoFuncApplication(location, context, arg.get(), base, "values_")) { |
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285 | return valueExpr; |
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286 | } |
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287 | } else { // it is position; replace itself |
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288 | return std::move( arg.get() ); |
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289 | } |
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290 | } |
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291 | return expr; |
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292 | } |
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293 | |
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294 | } // namespace |
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295 | |
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296 | void replacePseudoFunc(ast::TranslationUnit& translationUnit) { |
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297 | ast::Pass<WrapEnumValueExpr>::run(translationUnit); |
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298 | ast::Pass<FindGenEnumArray>::run(translationUnit); |
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299 | ast::Pass<PseudoFuncGenerateRoutine>::run(translationUnit); |
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300 | ast::Pass<ReplacePseudoFuncCore>::run(translationUnit); |
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301 | } |
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302 | } // namespace Validate |
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