[af746cc] | 1 | #include "AST/Create.hpp" |
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| 2 | #include "AST/Pass.hpp" |
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| 3 | #include "AST/TranslationUnit.hpp" |
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| 4 | #include "CodeGen/OperatorTable.h" // for isCtorDtor, isCtorDtorAssign |
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| 5 | #include "InitTweak/InitTweak.h" // for isAssignment, isCopyConstructor |
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| 6 | namespace Validate { |
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| 7 | |
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| 8 | namespace { |
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| 9 | class EnumAttrFuncGenerator { |
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[fc1a3e2] | 10 | const ast::EnumDecl* decl; |
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| 11 | const ast::EnumInstType* instType; |
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| 12 | unsigned int functionNesting; |
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| 13 | ast::Linkage::Spec proto_linkage; |
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| 14 | |
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| 15 | public: |
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| 16 | std::list<ast::ptr<ast::Decl>> forwards; |
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| 17 | std::list<ast::ptr<ast::Decl>> definitions; |
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| 18 | |
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| 19 | void generateAndAppendFunctions(std::list<ast::ptr<ast::Decl>>&); |
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| 20 | |
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| 21 | EnumAttrFuncGenerator( |
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| 22 | const ast::EnumDecl* decl, |
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| 23 | const ast::EnumInstType* instType, |
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| 24 | unsigned int functionNesting ) |
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| 25 | : decl(decl), |
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| 26 | instType{instType}, |
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| 27 | functionNesting{functionNesting}, |
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| 28 | proto_linkage{ast::Linkage::Cforall} {} |
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| 29 | |
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| 30 | void genAttrFunctions(); |
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| 31 | void genSuccPredPosn(); |
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| 32 | void genSuccPredDecl(); |
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| 33 | |
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| 34 | void appendReturnThis(ast::FunctionDecl* decl) { |
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| 35 | assert(1 <= decl->params.size()); |
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| 36 | assert(1 == decl->returns.size()); |
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| 37 | assert(decl->stmts); |
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| 38 | |
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| 39 | const CodeLocation& location = (decl->stmts->kids.empty()) |
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| 40 | ? decl->stmts->location |
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| 41 | : decl->stmts->kids.back()->location; |
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| 42 | const ast::DeclWithType* thisParam = decl->params.front(); |
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| 43 | decl->stmts.get_and_mutate()->push_back(new ast::ReturnStmt( |
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| 44 | location, new ast::VariableExpr(location, thisParam))); |
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| 45 | } |
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| 46 | void genAttrStandardFuncs() { |
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| 47 | ast::FunctionDecl* (EnumAttrFuncGenerator::*standardProtos[4])() |
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| 48 | const = {&EnumAttrFuncGenerator::genCtorProto, |
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| 49 | &EnumAttrFuncGenerator::genCopyProto, |
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| 50 | &EnumAttrFuncGenerator::genDtorProto, |
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| 51 | &EnumAttrFuncGenerator::genAssignProto}; |
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| 52 | for (auto& generator : standardProtos) { |
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| 53 | ast::FunctionDecl* decl = (this->*generator)(); |
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| 54 | produceForwardDecl(decl); |
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| 55 | genFuncBody(decl); |
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| 56 | if (CodeGen::isAssignment(decl->name)) { |
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| 57 | appendReturnThis(decl); |
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| 58 | } |
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| 59 | produceDecl(decl); |
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| 60 | } |
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| 61 | } |
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| 62 | |
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| 63 | private: |
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| 64 | const CodeLocation& getLocation() const { return decl->location; } |
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| 65 | |
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| 66 | ast::FunctionDecl* genProto( |
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| 67 | std::string&& name, std::vector<ast::ptr<ast::DeclWithType>>&& params, |
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| 68 | std::vector<ast::ptr<ast::DeclWithType>>&& returns) const; |
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| 69 | |
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| 70 | void produceDecl(const ast::FunctionDecl* decl); |
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| 71 | void produceForwardDecl(const ast::FunctionDecl* decl); |
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| 72 | |
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| 73 | const ast::Decl* getDecl() const { return decl; } |
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| 74 | |
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| 75 | ast::FunctionDecl* genPosnProto() const; |
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| 76 | ast::FunctionDecl* genLabelProto() const; |
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| 77 | ast::FunctionDecl* genValueProto() const; |
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| 78 | ast::FunctionDecl* genSuccProto() const; |
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| 79 | ast::FunctionDecl* genPredProto() const; |
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| 80 | |
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| 81 | ast::FunctionDecl* genSuccPosProto() const; |
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| 82 | ast::FunctionDecl* genPredPosProto() const; |
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| 83 | |
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| 84 | // --------------------------------------------------- |
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| 85 | // ast::FunctionDecl* genAttrCtorProto() const; |
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| 86 | /// Changes the node inside a pointer so that it has the unused attribute. |
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| 87 | void addUnusedAttribute(ast::ptr<ast::DeclWithType>& declPtr) { |
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| 88 | ast::DeclWithType* decl = declPtr.get_and_mutate(); |
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| 89 | decl->attributes.push_back(new ast::Attribute("unused")); |
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| 90 | } |
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| 91 | |
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| 92 | ast::ObjectDecl* dstParam() const { |
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| 93 | return new ast::ObjectDecl(getLocation(), "_dst", |
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| 94 | new ast::ReferenceType(new ast::EnumAttrType( |
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| 95 | ast::deepCopy(instType)))); |
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| 96 | } |
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| 97 | |
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| 98 | ast::ObjectDecl* srcParam() const { |
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| 99 | return new ast::ObjectDecl( |
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| 100 | getLocation(), "_src", |
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| 101 | new ast::EnumAttrType(ast::deepCopy(instType))); |
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| 102 | } |
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| 103 | |
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| 104 | /// E = EnumAttrType<T>` |
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| 105 | /// `void ?{}(E & _dst)`. |
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| 106 | ast::FunctionDecl* genCtorProto() const { |
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| 107 | return genProto("?{}", {dstParam()}, {}); |
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| 108 | } |
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| 109 | |
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| 110 | /// void ?{}(E & _dst, E _src)`. |
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| 111 | ast::FunctionDecl* genCopyProto() const { |
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| 112 | return genProto("?{}", {dstParam(), srcParam()}, {}); |
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| 113 | } |
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| 114 | |
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| 115 | ///`void ^?{}(E & _dst)`. |
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| 116 | ast::FunctionDecl* genDtorProto() const { |
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| 117 | // The destructor must be mutex on a concurrent type. |
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| 118 | return genProto("^?{}", {dstParam()}, {}); |
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| 119 | } |
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| 120 | |
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| 121 | /// `E ?{}(E & _dst, E _src)`. |
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| 122 | ast::FunctionDecl* genAssignProto() const { |
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| 123 | // Only the name is different, so just reuse the generation function. |
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| 124 | auto retval = srcParam(); |
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| 125 | retval->name = "_ret"; |
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| 126 | return genProto("?=?", {dstParam(), srcParam()}, {retval}); |
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| 127 | } |
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| 128 | |
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| 129 | void genFuncBody(ast::FunctionDecl* func) { |
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| 130 | const CodeLocation& location = func->location; |
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| 131 | auto& params = func->params; |
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| 132 | if (InitTweak::isCopyConstructor(func) || |
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| 133 | InitTweak::isAssignment(func)) { |
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| 134 | assert(2 == params.size()); |
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| 135 | auto dstParam = params.front().strict_as<ast::ObjectDecl>(); |
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| 136 | auto srcParam = params.back().strict_as<ast::ObjectDecl>(); |
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| 137 | func->stmts = genCopyBody(location, dstParam, srcParam); |
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| 138 | } else { |
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| 139 | assert(1 == params.size()); |
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| 140 | // Default constructor and destructor is empty. |
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| 141 | func->stmts = new ast::CompoundStmt(location); |
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| 142 | // Add unused attribute to parameter to silence warnings. |
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| 143 | addUnusedAttribute(params.front()); |
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| 144 | |
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| 145 | // Just an extra step to make the forward and declaration match. |
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| 146 | if (forwards.empty()) return; |
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| 147 | ast::FunctionDecl* fwd = strict_dynamic_cast<ast::FunctionDecl*>( |
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| 148 | forwards.back().get_and_mutate()); |
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| 149 | addUnusedAttribute(fwd->params.front()); |
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| 150 | } |
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| 151 | } |
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| 152 | |
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| 153 | const ast::CompoundStmt* genCopyBody( const CodeLocation& location, |
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| 154 | const ast::ObjectDecl* dstParam, const ast::ObjectDecl* srcParam) { |
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| 155 | return new ast::CompoundStmt( |
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| 156 | location, |
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| 157 | {new ast::ExprStmt( |
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| 158 | location, |
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| 159 | new ast::UntypedExpr( |
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| 160 | location, new ast::NameExpr(location, "__builtin_memcpy"), |
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| 161 | { |
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| 162 | new ast::AddressExpr( location, |
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| 163 | new ast::VariableExpr( location, dstParam ) ), |
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| 164 | new ast::AddressExpr( location, |
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| 165 | new ast::VariableExpr( location, srcParam ) ), |
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| 166 | new ast::SizeofExpr( location, srcParam->type ), |
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| 167 | }))}); |
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| 168 | } |
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| 169 | |
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| 170 | void genDtorBody(ast::FunctionDecl* func) { |
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| 171 | const CodeLocation& location = func->location; |
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| 172 | auto& params = func->params; |
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| 173 | assert(1 == params.size()); |
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| 174 | func->stmts = new ast::CompoundStmt(location); |
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| 175 | addUnusedAttribute(params.front()); |
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| 176 | |
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| 177 | // Just an extra step to make the forward and declaration match. |
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| 178 | if (forwards.empty()) return; |
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| 179 | ast::FunctionDecl* fwd = strict_dynamic_cast<ast::FunctionDecl*>( |
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| 180 | forwards.back().get_and_mutate()); |
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| 181 | addUnusedAttribute(fwd->params.front()); |
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| 182 | } |
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| 183 | |
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| 184 | // ast::FunctionDecl* |
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| 185 | // ---------------------------------------------------- |
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| 186 | |
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| 187 | ast::FunctionDecl* genSuccPredFunc(bool succ); |
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| 188 | |
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| 189 | const ast::Init* getAutoInit(const ast::Init* prev) const; |
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| 190 | |
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| 191 | std::vector<ast::ptr<ast::Init>> genLabelInit() const; |
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| 192 | |
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| 193 | std::vector<ast::ptr<ast::Init>> genValueInit() const; |
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| 194 | ast::ObjectDecl* genAttrArrayProto( |
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| 195 | const ast::EnumAttribute attr, const CodeLocation& location, |
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| 196 | std::vector<ast::ptr<ast::Init>>& inits) const; |
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| 197 | void genValueOrLabelBody( |
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| 198 | ast::FunctionDecl* func, ast::ObjectDecl* arrDecl) const; |
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| 199 | void genPosnBody(ast::FunctionDecl* func) const; |
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| 200 | void genAttributesDecls(const ast::EnumAttribute attr); |
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[af746cc] | 201 | }; |
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| 202 | |
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| 203 | std::vector<ast::ptr<ast::Init>> EnumAttrFuncGenerator::genLabelInit() const { |
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[fc1a3e2] | 204 | std::vector<ast::ptr<ast::Init>> inits; |
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| 205 | for (size_t i = 0; i < decl->members.size(); i++) { |
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| 206 | ast::ptr<ast::Decl> mem = decl->members.at(i); |
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| 207 | auto memAsObjectDecl = mem.as<ast::ObjectDecl>(); |
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| 208 | assert(memAsObjectDecl); |
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| 209 | inits.emplace_back(new ast::SingleInit( |
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| 210 | mem->location, |
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| 211 | ast::ConstantExpr::from_string(mem->location, mem->name))); |
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| 212 | } |
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| 213 | return inits; |
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[af746cc] | 214 | } |
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| 215 | |
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| 216 | std::vector<ast::ptr<ast::Init>> EnumAttrFuncGenerator::genValueInit() const { |
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[fc1a3e2] | 217 | std::vector<ast::ptr<ast::Init>> inits; |
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| 218 | for (size_t i = 0; i < decl->members.size(); i++) { |
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| 219 | ast::ptr<ast::Decl> mem = decl->members.at(i); |
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| 220 | auto memAsObjectDecl = mem.as<ast::ObjectDecl>(); |
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| 221 | assert(memAsObjectDecl); |
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| 222 | if (memAsObjectDecl->init) { |
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| 223 | inits.emplace_back(memAsObjectDecl->init); |
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| 224 | } else { |
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| 225 | const CodeLocation& location = mem->location; |
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| 226 | if (i == 0) { |
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| 227 | inits.emplace_back(new ast::SingleInit( |
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| 228 | location, ast::ConstantExpr::from_int(mem->location, 0))); |
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| 229 | } else { |
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| 230 | inits.emplace_back(getAutoInit(inits.at(i - 1))); |
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| 231 | } |
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| 232 | } |
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| 233 | } |
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| 234 | return inits; |
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[af746cc] | 235 | } |
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| 236 | const ast::Init* EnumAttrFuncGenerator::getAutoInit( |
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[fc1a3e2] | 237 | const ast::Init* prev) const { |
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| 238 | if (prev == nullptr) { |
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| 239 | return new ast::SingleInit( |
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| 240 | getLocation(), ast::ConstantExpr::from_int(getLocation(), 0)); |
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| 241 | } |
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| 242 | auto prevInit = dynamic_cast<const ast::SingleInit*>(prev); |
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| 243 | assert(prevInit); |
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| 244 | auto prevInitExpr = prevInit->value; |
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| 245 | if (auto constInit = prevInitExpr.as<ast::ConstantExpr>()) { |
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| 246 | // Assume no string literal for now |
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| 247 | return new ast::SingleInit( |
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| 248 | getLocation(), ast::ConstantExpr::from_int( |
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| 249 | getLocation(), constInit->intValue() + 1)); |
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| 250 | } else { |
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| 251 | auto untypedThisInit = new ast::UntypedExpr( |
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| 252 | getLocation(), new ast::NameExpr(getLocation(), "?++"), |
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| 253 | {prevInitExpr}); |
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| 254 | return new ast::SingleInit(getLocation(), untypedThisInit); |
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| 255 | } |
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[af746cc] | 256 | } |
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| 257 | |
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| 258 | ast::FunctionDecl* EnumAttrFuncGenerator::genProto( |
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[fc1a3e2] | 259 | std::string&& name, std::vector<ast::ptr<ast::DeclWithType>>&& params, |
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| 260 | std::vector<ast::ptr<ast::DeclWithType>>&& returns) const { |
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| 261 | ast::FunctionDecl* decl = new ast::FunctionDecl( |
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| 262 | // Auto-generated routines use the type declaration's location. |
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| 263 | getLocation(), std::move(name), {}, {}, std::move(params), |
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| 264 | std::move(returns), |
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| 265 | // Only a prototype, no body. |
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| 266 | nullptr, |
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| 267 | // Use static storage if we are at the top level. |
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| 268 | (0 < functionNesting) ? ast::Storage::Classes() : ast::Storage::Static, |
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| 269 | proto_linkage, std::vector<ast::ptr<ast::Attribute>>(), |
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| 270 | // Auto-generated routines are inline to avoid conflicts. |
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| 271 | ast::Function::Specs(ast::Function::Inline)); |
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| 272 | decl->fixUniqueId(); |
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| 273 | return decl; |
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[af746cc] | 274 | } |
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| 275 | |
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| 276 | void EnumAttrFuncGenerator::produceDecl(const ast::FunctionDecl* decl) { |
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[fc1a3e2] | 277 | assert(nullptr != decl->stmts); |
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[af746cc] | 278 | |
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[fc1a3e2] | 279 | definitions.push_back(decl); |
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[af746cc] | 280 | } |
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| 281 | |
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| 282 | void EnumAttrFuncGenerator::produceForwardDecl(const ast::FunctionDecl* decl) { |
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[fc1a3e2] | 283 | if (0 != functionNesting) return; |
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| 284 | ast::FunctionDecl* fwd = |
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| 285 | (decl->stmts) ? ast::asForward(decl) : ast::deepCopy(decl); |
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| 286 | fwd->fixUniqueId(); |
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| 287 | forwards.push_back(fwd); |
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[af746cc] | 288 | } |
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| 289 | |
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| 290 | ast::FunctionDecl* EnumAttrFuncGenerator::genPosnProto() const { |
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[fc1a3e2] | 291 | return genProto( |
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| 292 | "posE", |
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| 293 | {new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl))}, |
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| 294 | {new ast::ObjectDecl(getLocation(), "_ret", |
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| 295 | new ast::BasicType(ast::BasicKind::UnsignedInt))}); |
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[af746cc] | 296 | } |
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| 297 | |
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| 298 | ast::FunctionDecl* EnumAttrFuncGenerator::genLabelProto() const { |
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[fc1a3e2] | 299 | return genProto( |
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| 300 | "labelE", |
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| 301 | {new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl))}, |
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| 302 | {new ast::ObjectDecl( |
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| 303 | getLocation(), "_ret", |
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| 304 | new ast::PointerType(new ast::BasicType{ast::BasicKind::Char}))}); |
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[af746cc] | 305 | } |
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| 306 | |
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| 307 | ast::FunctionDecl* EnumAttrFuncGenerator::genValueProto() const { |
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[fc1a3e2] | 308 | return genProto( |
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| 309 | "valueE", |
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| 310 | {new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl))}, |
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| 311 | {new ast::ObjectDecl(getLocation(), "_ret", |
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| 312 | ast::deepCopy(decl->base))}); |
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[af746cc] | 313 | } |
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| 314 | |
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| 315 | ast::FunctionDecl* EnumAttrFuncGenerator::genSuccProto() const { |
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[fc1a3e2] | 316 | return genProto( |
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| 317 | "succ", |
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| 318 | {new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl))}, |
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| 319 | {new ast::ObjectDecl(getLocation(), "_ret", |
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| 320 | new ast::EnumInstType(decl))}); |
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[af746cc] | 321 | } |
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| 322 | |
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| 323 | ast::FunctionDecl* EnumAttrFuncGenerator::genPredProto() const { |
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[fc1a3e2] | 324 | return genProto( |
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| 325 | "pred", |
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| 326 | {new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl))}, |
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| 327 | {new ast::ObjectDecl(getLocation(), "_ret", |
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| 328 | new ast::EnumInstType(decl))}); |
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[af746cc] | 329 | } |
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| 330 | |
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| 331 | inline ast::EnumAttrType * getPosnType( const ast::EnumDecl * decl ) { |
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[fc1a3e2] | 332 | return new ast::EnumAttrType(new ast::EnumInstType(decl), ast::EnumAttribute::Posn); |
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[af746cc] | 333 | } |
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| 334 | |
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| 335 | ast::FunctionDecl* EnumAttrFuncGenerator::genSuccPosProto() const { |
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[fc1a3e2] | 336 | return genProto( |
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| 337 | "_successor_", |
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| 338 | {new ast::ObjectDecl(getLocation(), "_i", getPosnType(decl))}, |
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| 339 | {new ast::ObjectDecl(getLocation(), "_ret", getPosnType(decl))} |
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| 340 | ); |
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[af746cc] | 341 | } |
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| 342 | |
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| 343 | ast::FunctionDecl* EnumAttrFuncGenerator::genPredPosProto() const { |
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[fc1a3e2] | 344 | return genProto( |
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| 345 | "_predessor_", |
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| 346 | {new ast::ObjectDecl(getLocation(), "_i", getPosnType(decl))}, |
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| 347 | {new ast::ObjectDecl(getLocation(), "_ret", getPosnType(decl))} |
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| 348 | ); |
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[af746cc] | 349 | } |
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| 350 | |
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| 351 | ast::ObjectDecl* EnumAttrFuncGenerator::genAttrArrayProto( |
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[fc1a3e2] | 352 | const ast::EnumAttribute attr, const CodeLocation& location, |
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| 353 | std::vector<ast::ptr<ast::Init>>& inits) const { |
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| 354 | ast::ArrayType* arrT = new ast::ArrayType( |
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| 355 | attr == ast::EnumAttribute::Value |
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| 356 | ? decl->base |
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| 357 | : new ast::PointerType(new ast::BasicType{ast::BasicKind::Char}), |
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| 358 | ast::ConstantExpr::from_int(decl->location, decl->members.size()), |
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| 359 | ast::LengthFlag::FixedLen, ast::DimensionFlag::DynamicDim); |
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| 360 | |
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| 361 | ast::ObjectDecl* objDecl = |
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| 362 | new ast::ObjectDecl( |
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| 363 | decl->location, decl->getUnmangeldArrayName( attr ), |
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| 364 | arrT, new ast::ListInit( location, std::move( inits ) ), |
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| 365 | ast::Storage::Static, ast::Linkage::AutoGen ); |
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| 366 | |
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| 367 | return objDecl; |
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[af746cc] | 368 | } |
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| 369 | |
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| 370 | void EnumAttrFuncGenerator::genValueOrLabelBody( |
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[fc1a3e2] | 371 | ast::FunctionDecl* func, ast::ObjectDecl* arrDecl) const { |
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| 372 | ast::UntypedExpr* untyped = ast::UntypedExpr::createCall( |
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| 373 | func->location, "?[?]", |
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| 374 | {new ast::NameExpr(func->location, arrDecl->name), |
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| 375 | new ast::CastExpr( |
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| 376 | func->location, |
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| 377 | new ast::VariableExpr( func->location, func->params.front() ), |
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| 378 | new ast::EnumAttrType( new ast::EnumInstType(decl), |
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| 379 | ast::EnumAttribute::Posn))}); |
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| 380 | func->stmts = new ast::CompoundStmt( |
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| 381 | func->location, {new ast::ReturnStmt(func->location, untyped)}); |
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[af746cc] | 382 | } |
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| 383 | |
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| 384 | void EnumAttrFuncGenerator::genPosnBody(ast::FunctionDecl* func) const { |
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[fc1a3e2] | 385 | auto castExpr = new ast::CastExpr( |
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| 386 | func->location, |
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| 387 | new ast::VariableExpr(func->location, func->params.front()), |
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| 388 | new ast::EnumAttrType(new ast::EnumInstType(decl), |
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| 389 | ast::EnumAttribute::Posn)); |
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| 390 | func->stmts = new ast::CompoundStmt( |
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| 391 | func->location, {new ast::ReturnStmt(func->location, castExpr)}); |
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[af746cc] | 392 | } |
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| 393 | |
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| 394 | void EnumAttrFuncGenerator::genAttributesDecls(const ast::EnumAttribute attr) { |
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[fc1a3e2] | 395 | if (attr == ast::EnumAttribute::Value || |
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| 396 | attr == ast::EnumAttribute::Label) { |
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| 397 | std::vector<ast::ptr<ast::Init>> inits = |
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| 398 | attr == ast::EnumAttribute::Value ? genValueInit() : genLabelInit(); |
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| 399 | ast::ObjectDecl* arrayProto = |
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| 400 | genAttrArrayProto(attr, getLocation(), inits); |
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| 401 | forwards.push_back(arrayProto); |
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| 402 | |
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| 403 | ast::FunctionDecl* funcProto = ( attr == ast::EnumAttribute::Value ) |
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| 404 | ? genValueProto() |
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| 405 | : genLabelProto(); |
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| 406 | produceForwardDecl(funcProto); |
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| 407 | genValueOrLabelBody(funcProto, arrayProto); |
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| 408 | produceDecl(funcProto); |
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| 409 | } else { |
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| 410 | ast::FunctionDecl* funcProto = genPosnProto(); |
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| 411 | produceForwardDecl(funcProto); |
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| 412 | genPosnBody(funcProto); |
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| 413 | produceDecl(funcProto); |
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| 414 | } |
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[af746cc] | 415 | } |
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| 416 | |
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| 417 | ast::FunctionDecl* EnumAttrFuncGenerator::genSuccPredFunc(bool succ) { |
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[fc1a3e2] | 418 | ast::FunctionDecl* funcDecl = succ ? genSuccPosProto() : genPredPosProto(); |
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| 419 | produceForwardDecl(funcDecl); |
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[af746cc] | 420 | |
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[fc1a3e2] | 421 | const CodeLocation& location = getLocation(); |
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[af746cc] | 422 | |
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[fc1a3e2] | 423 | auto& params = funcDecl->params; |
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| 424 | assert(params.size() == 1); |
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| 425 | auto param = params.front().strict_as<ast::ObjectDecl>(); |
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[af746cc] | 426 | |
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| 427 | |
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[fc1a3e2] | 428 | auto rets = funcDecl->returns; |
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| 429 | assert(params.size() == 1); |
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| 430 | auto ret = rets.front().strict_as<ast::ObjectDecl>(); |
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| 431 | auto retType = ret->type.strict_as<ast::EnumAttrType>(); |
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[af746cc] | 432 | |
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[fc1a3e2] | 433 | auto addOneExpr = ast::UntypedExpr::createCall( location, |
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| 434 | succ? "?+?": "?-?", |
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| 435 | {new ast::VariableExpr(location, param), |
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| 436 | ast::ConstantExpr::from_int(location, 1)} |
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| 437 | ); |
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[af746cc] | 438 | |
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[fc1a3e2] | 439 | funcDecl->stmts = new ast::CompoundStmt( |
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| 440 | location, { |
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| 441 | new ast::ReturnStmt( |
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| 442 | location, |
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| 443 | new ast::CastExpr(location, addOneExpr, retType) |
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| 444 | ) |
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| 445 | } |
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| 446 | ); |
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[af746cc] | 447 | |
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[fc1a3e2] | 448 | return funcDecl; |
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[af746cc] | 449 | } |
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| 450 | |
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| 451 | void EnumAttrFuncGenerator::genAttrFunctions() { |
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[fc1a3e2] | 452 | if (decl->base) { |
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| 453 | genAttributesDecls(ast::EnumAttribute::Value); |
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| 454 | genAttributesDecls(ast::EnumAttribute::Label); |
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| 455 | genAttributesDecls(ast::EnumAttribute::Posn); |
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| 456 | } |
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[af746cc] | 457 | } |
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| 458 | |
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| 459 | void EnumAttrFuncGenerator::genSuccPredDecl() { |
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[fc1a3e2] | 460 | if (decl->base) { |
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| 461 | auto succProto = genSuccProto(); |
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| 462 | auto predProto = genPredProto(); |
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[af746cc] | 463 | |
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[fc1a3e2] | 464 | produceForwardDecl(succProto); |
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| 465 | produceForwardDecl(predProto); |
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| 466 | } |
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[af746cc] | 467 | } |
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| 468 | |
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| 469 | void EnumAttrFuncGenerator::genSuccPredPosn() { |
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[fc1a3e2] | 470 | if (decl->base) { |
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| 471 | ast::FunctionDecl* succ = genSuccPredFunc(true); |
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| 472 | ast::FunctionDecl* pred = genSuccPredFunc(false); |
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[af746cc] | 473 | |
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[fc1a3e2] | 474 | produceDecl(succ); |
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| 475 | produceDecl(pred); |
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| 476 | } |
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[af746cc] | 477 | } |
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| 478 | |
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| 479 | void EnumAttrFuncGenerator::generateAndAppendFunctions( |
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[fc1a3e2] | 480 | std::list<ast::ptr<ast::Decl>>& decls) { |
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| 481 | // Generate the functions (they go into forwards and definitions). |
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| 482 | genAttrStandardFuncs(); |
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| 483 | genAttrFunctions(); |
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| 484 | genSuccPredDecl(); |
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| 485 | genSuccPredPosn(); // Posn |
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| 486 | // Now export the lists contents. |
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| 487 | decls.splice(decls.end(), forwards); |
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| 488 | decls.splice(decls.end(), definitions); |
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[af746cc] | 489 | } |
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| 490 | |
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| 491 | // --------------------------------------------------------- |
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| 492 | |
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[fc1a3e2] | 493 | struct ImplementEnumFunc final : |
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| 494 | public ast::WithDeclsToAdd<>, public ast::WithShortCircuiting { |
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| 495 | void previsit(const ast::EnumDecl* enumDecl); |
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| 496 | void previsit(const ast::FunctionDecl* functionDecl); |
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| 497 | void postvisit(const ast::FunctionDecl* functionDecl); |
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[af746cc] | 498 | |
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[fc1a3e2] | 499 | private: |
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| 500 | // Current level of nested functions. |
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| 501 | unsigned int functionNesting = 0; |
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[af746cc] | 502 | }; |
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| 503 | |
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| 504 | void ImplementEnumFunc::previsit(const ast::EnumDecl* enumDecl) { |
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[fc1a3e2] | 505 | if (!enumDecl->body) return; |
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| 506 | if (!enumDecl->base) return; |
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[af746cc] | 507 | |
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[fc1a3e2] | 508 | ast::EnumInstType enumInst(enumDecl->name); |
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| 509 | enumInst.base = enumDecl; |
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[dc58e5d] | 510 | |
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[fc1a3e2] | 511 | EnumAttrFuncGenerator gen(enumDecl, &enumInst, functionNesting); |
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| 512 | gen.generateAndAppendFunctions(declsToAddAfter); |
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[af746cc] | 513 | } |
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| 514 | |
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| 515 | void ImplementEnumFunc::previsit(const ast::FunctionDecl*) { |
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[fc1a3e2] | 516 | functionNesting += 1; |
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[af746cc] | 517 | } |
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| 518 | |
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| 519 | void ImplementEnumFunc::postvisit(const ast::FunctionDecl*) { |
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[fc1a3e2] | 520 | functionNesting -= 1; |
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[af746cc] | 521 | } |
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| 522 | |
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[fc1a3e2] | 523 | } // namespace |
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[af746cc] | 524 | |
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| 525 | void implementEnumFunc(ast::TranslationUnit& translationUnit) { |
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[fc1a3e2] | 526 | ast::Pass<ImplementEnumFunc>::run(translationUnit); |
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[af746cc] | 527 | } |
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[fc1a3e2] | 528 | |
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| 529 | } // namespace Validate |
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