[544deb9] | 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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[ac939461] | 5 | #include "AST/Decl.hpp" |
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[544deb9] | 6 | #include "AST/Inspect.hpp" |
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[ac939461] | 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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[544deb9] | 10 | #include "ResolvExpr/Resolver.h" |
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| 11 | #include "SymTab/Mangler.h" // for Mangler |
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[ac939461] | 12 | namespace Validate { |
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| 13 | |
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| 14 | namespace { |
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| 15 | |
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[544deb9] | 16 | std::set<std::string> queryLabels; |
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| 17 | std::set<std::string> queryValues; |
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| 18 | |
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[c75b30a] | 19 | struct WrapEnumValueExpr final : public ast::WithShortCircuiting, |
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| 20 | public ast::WithSymbolTable, |
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| 21 | public ast::WithConstTranslationUnit { |
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| 22 | void previsit(const ast::DeclStmt* expr); |
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| 23 | void previsit(const ast::ApplicationExpr* expr); |
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| 24 | void previsit(const ast::CastExpr* expr); |
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| 25 | |
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| 26 | ast::Expr const* postvisit(const ast::VariableExpr* expr); |
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| 27 | }; |
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| 28 | |
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[544deb9] | 29 | struct FindGenEnumArray final : public ast::WithShortCircuiting { |
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| 30 | void previsit(const ast::ApplicationExpr* enumDecl); |
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[ac939461] | 31 | }; |
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[544deb9] | 32 | |
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[c75b30a] | 33 | struct PseudoFuncGenerateRoutine final : public ast::WithDeclsToAdd<>, |
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| 34 | public ast::WithSymbolTable, |
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| 35 | public ast::WithShortCircuiting { |
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| 36 | void previsit(const ast::EnumDecl* enumDecl); |
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| 37 | }; |
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| 38 | |
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| 39 | struct ReplacePseudoFuncCore : public ast::WithShortCircuiting, |
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| 40 | public ast::WithSymbolTable, |
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| 41 | public ast::WithConstTranslationUnit { |
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| 42 | ast::Expr const* postvisit(ast::ApplicationExpr const* decl); |
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| 43 | }; |
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| 44 | |
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| 45 | void WrapEnumValueExpr::previsit(const ast::ApplicationExpr* expr) { |
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| 46 | |
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| 47 | auto varExpr = expr->func.as<ast::VariableExpr>(); |
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| 48 | auto fname = ast::getFunctionName(expr); |
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| 49 | if ( !varExpr || varExpr->var->linkage == ast::Linkage::Intrinsic ) { |
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| 50 | if ( fname == "?{}" || fname == "?=?" ) |
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| 51 | visit_children = false; |
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| 52 | } |
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| 53 | |
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| 54 | if (fname == "labelE" || fname == "valueE" || fname == "posE") |
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| 55 | visit_children = false; |
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| 56 | } |
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| 57 | |
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| 58 | void WrapEnumValueExpr::previsit(const ast::DeclStmt*) { |
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| 59 | visit_children = false; |
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| 60 | } |
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| 61 | |
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| 62 | void WrapEnumValueExpr::previsit(const ast::CastExpr* expr) { |
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| 63 | if (expr->result && expr->result.as<ast::ReferenceType>()) { |
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| 64 | visit_children = false; |
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| 65 | } |
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| 66 | } |
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| 67 | |
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| 68 | ast::Expr const* WrapEnumValueExpr::postvisit(const ast::VariableExpr* expr) { |
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| 69 | visit_children = false; |
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| 70 | if (!expr->result) { |
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| 71 | return expr; |
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| 72 | } |
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| 73 | if (auto enumInst = expr->result.as<ast::EnumInstType>()) { |
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| 74 | if (enumInst->base && enumInst->base->base) { |
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| 75 | auto untyped = new ast::UntypedExpr( |
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| 76 | expr->location, new ast::NameExpr(expr->location, "valueE"), |
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| 77 | {new ast::VariableExpr(*expr)}); |
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| 78 | ResolvExpr::ResolveContext context{symtab, transUnit().global}; |
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| 79 | auto result = ResolvExpr::findVoidExpression(untyped, context); |
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| 80 | if (result.get()) { |
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| 81 | ast::ptr<ast::ApplicationExpr> ret = |
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| 82 | result.strict_as<ast::ApplicationExpr>(); |
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| 83 | return new ast::ApplicationExpr(*ret); |
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| 84 | } |
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| 85 | } |
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| 86 | } |
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| 87 | return expr; |
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| 88 | } |
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| 89 | |
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[544deb9] | 90 | void FindGenEnumArray::previsit(const ast::ApplicationExpr* expr) { |
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| 91 | auto fname = ast::getFunctionName(expr); |
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| 92 | if (fname == "labelE" || fname == "valueE") { |
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| 93 | if (expr->args.size() != 1) { |
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| 94 | SemanticError(expr, "Position Expression only take one parameter"); |
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| 95 | } |
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| 96 | const ast::VariableExpr* arg = |
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| 97 | expr->args.front().as<const ast::VariableExpr>(); |
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| 98 | if (!arg) { |
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| 99 | SemanticError(expr, "Unimplement Pseudo Function Cases"); |
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| 100 | } |
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| 101 | const ast::ObjectDecl* argAsVar = arg->var.as<const ast::ObjectDecl>(); |
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| 102 | const std::string referredName = argAsVar->name; |
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| 103 | const ast::EnumInstType* argType = |
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| 104 | argAsVar->type.as<const ast::EnumInstType>(); |
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| 105 | if (!argType) { |
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| 106 | SemanticError( |
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| 107 | argAsVar, |
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| 108 | "Position can only be used on an enumeration instance"); |
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| 109 | } |
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| 110 | ast::ptr<ast::EnumDecl> base = argType->base; |
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| 111 | assert(base); |
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| 112 | if (fname == "labelE") queryLabels.insert(base->name); |
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| 113 | if (fname == "valueE") queryValues.insert(base->name); |
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| 114 | } |
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[ac939461] | 115 | } |
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| 116 | |
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[544deb9] | 117 | void PseudoFuncGenerateRoutine::previsit(const ast::EnumDecl* enumDecl) { |
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| 118 | visit_children = false; |
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| 119 | const CodeLocation& location = enumDecl->location; |
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| 120 | if (enumDecl->members.size() == 0 || !enumDecl->base) return; |
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| 121 | |
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| 122 | std::vector<ast::ptr<ast::Init>> inits; |
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| 123 | std::vector<ast::ptr<ast::Init>> labels; |
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| 124 | for (const ast::Decl* mem : enumDecl->members) { |
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| 125 | auto memAsObjectDecl = dynamic_cast<const ast::ObjectDecl*>(mem); |
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| 126 | inits.emplace_back(memAsObjectDecl->init); |
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| 127 | labels.emplace_back(new ast::SingleInit( |
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| 128 | location, ast::ConstantExpr::from_string(location, mem->name))); |
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| 129 | } |
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[c75b30a] | 130 | // Values only |
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[544deb9] | 131 | if (queryValues.count(enumDecl->name)) { |
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| 132 | auto init = new ast::ListInit(location, std::move(inits)); |
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[c75b30a] | 133 | const ast::ArrayType* arrT = new ast::ArrayType( |
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| 134 | enumDecl->base, |
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| 135 | ast::ConstantExpr::from_int(location, enumDecl->members.size()), |
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| 136 | ast::LengthFlag::FixedLen, ast::DimensionFlag::DynamicDim); |
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| 137 | ast::ObjectDecl* values = new ast::ObjectDecl( |
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| 138 | location, "values_" + enumDecl->name, arrT, init, |
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| 139 | ast::Storage::Static, ast::Linkage::AutoGen); |
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[544deb9] | 140 | symtab.addId(values); |
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| 141 | values->mangleName = Mangle::mangle(values); |
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| 142 | declsToAddAfter.push_back(values); |
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| 143 | } |
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| 144 | if (queryLabels.count(enumDecl->name)) { |
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| 145 | auto label_strings = new ast::ListInit(location, std::move(labels)); |
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[c75b30a] | 146 | auto labels = new ast::ObjectDecl( |
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[544deb9] | 147 | location, "labels_" + enumDecl->name, |
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| 148 | new ast::ArrayType( |
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| 149 | new ast::PointerType(new ast::BasicType{ast::BasicType::Char}), |
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| 150 | ast::ConstantExpr::from_int(location, enumDecl->members.size()), |
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| 151 | ast::LengthFlag::FixedLen, ast::DimensionFlag::DynamicDim), |
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| 152 | label_strings, ast::Storage::Static, ast::Linkage::AutoGen); |
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[c75b30a] | 153 | symtab.addId(labels); |
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| 154 | labels->mangleName = Mangle::mangle(labels); |
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| 155 | declsToAddAfter.push_back(labels); |
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[544deb9] | 156 | } |
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| 157 | } |
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| 158 | |
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[c75b30a] | 159 | ast::ApplicationExpr const* getPseudoFuncApplication( |
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| 160 | const CodeLocation location, ResolvExpr::ResolveContext context, |
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| 161 | const ast::VariableExpr* arg, const ast::EnumDecl* base, const std::string & name) { |
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| 162 | ast::Expr* toResolve = new ast::NameExpr(location, name + base->name); |
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| 163 | auto result = ResolvExpr::findVoidExpression(toResolve, context); |
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| 164 | assert(result.get()); |
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| 165 | auto arrAsVar = result.strict_as<ast::VariableExpr>(); |
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| 166 | auto untyped = new ast::UntypedExpr( |
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| 167 | location, new ast::NameExpr(location, "?[?]"), |
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| 168 | {new ast::VariableExpr(*arrAsVar), new ast::VariableExpr(*arg)}); |
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| 169 | auto typedResult = ResolvExpr::findVoidExpression(untyped, context); |
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| 170 | |
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| 171 | ast::ptr<ast::ApplicationExpr> ret = |
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| 172 | typedResult.strict_as<ast::ApplicationExpr>(); |
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| 173 | return ast::deepCopy(ret); |
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| 174 | } |
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[544deb9] | 175 | |
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| 176 | ast::Expr const* ReplacePseudoFuncCore::postvisit( |
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| 177 | ast::ApplicationExpr const* expr) { |
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| 178 | auto fname = ast::getFunctionName(expr); |
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| 179 | auto location = expr->location; |
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| 180 | if (fname == "posE" || fname == "valueE" || fname == "labelE") { |
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| 181 | if (expr->args.size() != 1) { |
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| 182 | SemanticError(expr, |
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| 183 | "Pseudo Enum Expression only take one parameter"); |
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[ac939461] | 184 | } |
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[544deb9] | 185 | ast::ptr<ast::VariableExpr> arg = |
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| 186 | expr->args.front().as<const ast::VariableExpr>(); |
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| 187 | if (!arg) { |
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| 188 | SemanticError(expr, "Unimplement Pseudo Function Cases"); |
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[ac939461] | 189 | } |
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[544deb9] | 190 | const ast::ObjectDecl* argAsVar = arg->var.as<const ast::ObjectDecl>(); |
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[ac939461] | 191 | const std::string referredName = argAsVar->name; |
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[544deb9] | 192 | const ast::EnumInstType* argType = |
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| 193 | argAsVar->type.as<const ast::EnumInstType>(); |
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| 194 | if (!argType) { |
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| 195 | SemanticError(argAsVar, |
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| 196 | "Pseudo Enum Expression can only be used on an " |
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| 197 | "enumeration instance"); |
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| 198 | } |
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| 199 | const ast::EnumDecl* base = argType->base; |
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[c75b30a] | 200 | ResolvExpr::ResolveContext context{symtab, transUnit().global}; |
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| 201 | // If resolvable as constant |
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[544deb9] | 202 | for (size_t i = 0; i < base->members.size(); i++) { |
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| 203 | if (base->members[i]->name == referredName) { |
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| 204 | if (fname == "posE") |
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| 205 | return ast::ConstantExpr::from_int(expr->location, i); |
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| 206 | else if (fname == "labelE") |
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| 207 | return ast::ConstantExpr::from_string(expr->location, |
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| 208 | referredName); |
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[367725d] | 209 | else |
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[c75b30a] | 210 | return getPseudoFuncApplication(location, context, arg.get(), |
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| 211 | base, "values_"); |
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[544deb9] | 212 | } |
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| 213 | } |
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| 214 | |
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| 215 | if (fname == "labelE") { |
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[c75b30a] | 216 | if (auto labelExpr = |
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| 217 | getPseudoFuncApplication(location, context, arg.get(), base, "labels_")) { |
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| 218 | return labelExpr; |
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[544deb9] | 219 | } |
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[c75b30a] | 220 | } else if (fname == "valueE") { |
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| 221 | if (auto valueExpr = |
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| 222 | getPseudoFuncApplication(location, context, arg.get(), base, "values_")) { |
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| 223 | return valueExpr; |
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[ac939461] | 224 | } |
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[c75b30a] | 225 | } else { // it is position; replace itself |
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| 226 | return std::move( arg.get() ); |
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[ac939461] | 227 | } |
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| 228 | } |
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| 229 | return expr; |
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| 230 | } |
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| 231 | |
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[544deb9] | 232 | } // namespace |
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[ac939461] | 233 | |
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[544deb9] | 234 | void replacePseudoFunc(ast::TranslationUnit& translationUnit) { |
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[c75b30a] | 235 | ast::Pass<WrapEnumValueExpr>::run(translationUnit); |
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[544deb9] | 236 | ast::Pass<FindGenEnumArray>::run(translationUnit); |
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| 237 | ast::Pass<PseudoFuncGenerateRoutine>::run(translationUnit); |
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| 238 | ast::Pass<ReplacePseudoFuncCore>::run(translationUnit); |
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[ac939461] | 239 | } |
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[544deb9] | 240 | } // namespace Validate |
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