[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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[eb7586e] | 32 | // void genSuccPredDecl(); |
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[fc1a3e2] | 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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[eb7586e] | 75 | // Implement Bounded trait for enum |
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| 76 | void genBoundedFunctions(); |
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| 77 | // Implement Serial trait for enum |
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| 78 | void genSerialTraitFuncs(); |
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| 79 | |
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| 80 | // Bounded trait |
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| 81 | ast::FunctionDecl* genLowerBoundProto() const; |
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| 82 | ast::FunctionDecl* genUpperBoundProto() const; |
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| 83 | void genLowerBoundBody(ast::FunctionDecl* func) const; |
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| 84 | void genUpperBoundBody(ast::FunctionDecl* func) const; |
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| 85 | |
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[fc1a3e2] | 86 | ast::FunctionDecl* genPosnProto() const; |
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| 87 | ast::FunctionDecl* genLabelProto() const; |
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| 88 | ast::FunctionDecl* genValueProto() const; |
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[eb7586e] | 89 | |
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| 90 | // Serial trait |
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| 91 | ast::FunctionDecl* genFromIntProto() const; |
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| 92 | ast::FunctionDecl* genFromInstanceProto() const; |
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[fc1a3e2] | 93 | ast::FunctionDecl* genSuccProto() const; |
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| 94 | ast::FunctionDecl* genPredProto() const; |
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| 95 | |
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[eb7586e] | 96 | void genFromIntBody(ast::FunctionDecl *) const; |
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| 97 | void genFromInstanceBody(ast::FunctionDecl *) const; |
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| 98 | //////////////// |
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| 99 | |
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[fc1a3e2] | 100 | ast::FunctionDecl* genSuccPosProto() const; |
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| 101 | ast::FunctionDecl* genPredPosProto() const; |
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| 102 | |
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| 103 | // --------------------------------------------------- |
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| 104 | // ast::FunctionDecl* genAttrCtorProto() const; |
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| 105 | /// Changes the node inside a pointer so that it has the unused attribute. |
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| 106 | void addUnusedAttribute(ast::ptr<ast::DeclWithType>& declPtr) { |
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| 107 | ast::DeclWithType* decl = declPtr.get_and_mutate(); |
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| 108 | decl->attributes.push_back(new ast::Attribute("unused")); |
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| 109 | } |
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| 110 | |
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| 111 | ast::ObjectDecl* dstParam() const { |
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| 112 | return new ast::ObjectDecl(getLocation(), "_dst", |
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| 113 | new ast::ReferenceType(new ast::EnumAttrType( |
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| 114 | ast::deepCopy(instType)))); |
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| 115 | } |
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| 116 | |
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| 117 | ast::ObjectDecl* srcParam() const { |
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| 118 | return new ast::ObjectDecl( |
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| 119 | getLocation(), "_src", |
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| 120 | new ast::EnumAttrType(ast::deepCopy(instType))); |
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| 121 | } |
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| 122 | |
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| 123 | /// E = EnumAttrType<T>` |
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| 124 | /// `void ?{}(E & _dst)`. |
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| 125 | ast::FunctionDecl* genCtorProto() const { |
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| 126 | return genProto("?{}", {dstParam()}, {}); |
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| 127 | } |
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| 128 | |
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| 129 | /// void ?{}(E & _dst, E _src)`. |
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| 130 | ast::FunctionDecl* genCopyProto() const { |
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| 131 | return genProto("?{}", {dstParam(), srcParam()}, {}); |
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| 132 | } |
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| 133 | |
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| 134 | ///`void ^?{}(E & _dst)`. |
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| 135 | ast::FunctionDecl* genDtorProto() const { |
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| 136 | // The destructor must be mutex on a concurrent type. |
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| 137 | return genProto("^?{}", {dstParam()}, {}); |
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| 138 | } |
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| 139 | |
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| 140 | /// `E ?{}(E & _dst, E _src)`. |
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| 141 | ast::FunctionDecl* genAssignProto() const { |
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| 142 | // Only the name is different, so just reuse the generation function. |
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| 143 | auto retval = srcParam(); |
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| 144 | retval->name = "_ret"; |
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| 145 | return genProto("?=?", {dstParam(), srcParam()}, {retval}); |
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| 146 | } |
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| 147 | |
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| 148 | void genFuncBody(ast::FunctionDecl* func) { |
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| 149 | const CodeLocation& location = func->location; |
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| 150 | auto& params = func->params; |
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| 151 | if (InitTweak::isCopyConstructor(func) || |
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| 152 | InitTweak::isAssignment(func)) { |
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| 153 | assert(2 == params.size()); |
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| 154 | auto dstParam = params.front().strict_as<ast::ObjectDecl>(); |
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| 155 | auto srcParam = params.back().strict_as<ast::ObjectDecl>(); |
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| 156 | func->stmts = genCopyBody(location, dstParam, srcParam); |
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| 157 | } else { |
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| 158 | assert(1 == params.size()); |
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| 159 | // Default constructor and destructor is empty. |
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| 160 | func->stmts = new ast::CompoundStmt(location); |
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| 161 | // Add unused attribute to parameter to silence warnings. |
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| 162 | addUnusedAttribute(params.front()); |
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| 163 | |
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| 164 | // Just an extra step to make the forward and declaration match. |
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| 165 | if (forwards.empty()) return; |
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| 166 | ast::FunctionDecl* fwd = strict_dynamic_cast<ast::FunctionDecl*>( |
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| 167 | forwards.back().get_and_mutate()); |
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| 168 | addUnusedAttribute(fwd->params.front()); |
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| 169 | } |
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| 170 | } |
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| 171 | |
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| 172 | const ast::CompoundStmt* genCopyBody( const CodeLocation& location, |
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| 173 | const ast::ObjectDecl* dstParam, const ast::ObjectDecl* srcParam) { |
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| 174 | return new ast::CompoundStmt( |
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| 175 | location, |
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| 176 | {new ast::ExprStmt( |
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| 177 | location, |
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| 178 | new ast::UntypedExpr( |
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| 179 | location, new ast::NameExpr(location, "__builtin_memcpy"), |
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| 180 | { |
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| 181 | new ast::AddressExpr( location, |
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| 182 | new ast::VariableExpr( location, dstParam ) ), |
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| 183 | new ast::AddressExpr( location, |
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| 184 | new ast::VariableExpr( location, srcParam ) ), |
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| 185 | new ast::SizeofExpr( location, srcParam->type ), |
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| 186 | }))}); |
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| 187 | } |
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| 188 | |
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| 189 | void genDtorBody(ast::FunctionDecl* func) { |
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| 190 | const CodeLocation& location = func->location; |
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| 191 | auto& params = func->params; |
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| 192 | assert(1 == params.size()); |
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| 193 | func->stmts = new ast::CompoundStmt(location); |
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| 194 | addUnusedAttribute(params.front()); |
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| 195 | |
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| 196 | // Just an extra step to make the forward and declaration match. |
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| 197 | if (forwards.empty()) return; |
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| 198 | ast::FunctionDecl* fwd = strict_dynamic_cast<ast::FunctionDecl*>( |
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| 199 | forwards.back().get_and_mutate()); |
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| 200 | addUnusedAttribute(fwd->params.front()); |
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| 201 | } |
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| 202 | |
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| 203 | // ast::FunctionDecl* |
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| 204 | // ---------------------------------------------------- |
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| 205 | |
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| 206 | ast::FunctionDecl* genSuccPredFunc(bool succ); |
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| 207 | |
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| 208 | const ast::Init* getAutoInit(const ast::Init* prev) const; |
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| 209 | |
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| 210 | std::vector<ast::ptr<ast::Init>> genLabelInit() const; |
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| 211 | |
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| 212 | std::vector<ast::ptr<ast::Init>> genValueInit() const; |
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| 213 | ast::ObjectDecl* genAttrArrayProto( |
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| 214 | const ast::EnumAttribute attr, const CodeLocation& location, |
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| 215 | std::vector<ast::ptr<ast::Init>>& inits) const; |
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| 216 | void genValueOrLabelBody( |
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| 217 | ast::FunctionDecl* func, ast::ObjectDecl* arrDecl) const; |
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| 218 | void genPosnBody(ast::FunctionDecl* func) const; |
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| 219 | void genAttributesDecls(const ast::EnumAttribute attr); |
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[af746cc] | 220 | }; |
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| 221 | |
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| 222 | std::vector<ast::ptr<ast::Init>> EnumAttrFuncGenerator::genLabelInit() const { |
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[fc1a3e2] | 223 | std::vector<ast::ptr<ast::Init>> inits; |
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| 224 | for (size_t i = 0; i < decl->members.size(); i++) { |
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| 225 | ast::ptr<ast::Decl> mem = decl->members.at(i); |
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| 226 | auto memAsObjectDecl = mem.as<ast::ObjectDecl>(); |
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| 227 | assert(memAsObjectDecl); |
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| 228 | inits.emplace_back(new ast::SingleInit( |
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| 229 | mem->location, |
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| 230 | ast::ConstantExpr::from_string(mem->location, mem->name))); |
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| 231 | } |
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| 232 | return inits; |
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[af746cc] | 233 | } |
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| 234 | |
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| 235 | std::vector<ast::ptr<ast::Init>> EnumAttrFuncGenerator::genValueInit() const { |
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[fc1a3e2] | 236 | std::vector<ast::ptr<ast::Init>> inits; |
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| 237 | for (size_t i = 0; i < decl->members.size(); i++) { |
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| 238 | ast::ptr<ast::Decl> mem = decl->members.at(i); |
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| 239 | auto memAsObjectDecl = mem.as<ast::ObjectDecl>(); |
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| 240 | assert(memAsObjectDecl); |
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| 241 | if (memAsObjectDecl->init) { |
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| 242 | inits.emplace_back(memAsObjectDecl->init); |
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| 243 | } else { |
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| 244 | const CodeLocation& location = mem->location; |
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| 245 | if (i == 0) { |
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| 246 | inits.emplace_back(new ast::SingleInit( |
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| 247 | location, ast::ConstantExpr::from_int(mem->location, 0))); |
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| 248 | } else { |
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| 249 | inits.emplace_back(getAutoInit(inits.at(i - 1))); |
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| 250 | } |
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| 251 | } |
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| 252 | } |
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| 253 | return inits; |
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[af746cc] | 254 | } |
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| 255 | const ast::Init* EnumAttrFuncGenerator::getAutoInit( |
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[fc1a3e2] | 256 | const ast::Init* prev) const { |
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| 257 | if (prev == nullptr) { |
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| 258 | return new ast::SingleInit( |
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| 259 | getLocation(), ast::ConstantExpr::from_int(getLocation(), 0)); |
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| 260 | } |
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| 261 | auto prevInit = dynamic_cast<const ast::SingleInit*>(prev); |
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| 262 | assert(prevInit); |
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| 263 | auto prevInitExpr = prevInit->value; |
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| 264 | if (auto constInit = prevInitExpr.as<ast::ConstantExpr>()) { |
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| 265 | // Assume no string literal for now |
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| 266 | return new ast::SingleInit( |
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| 267 | getLocation(), ast::ConstantExpr::from_int( |
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| 268 | getLocation(), constInit->intValue() + 1)); |
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| 269 | } else { |
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| 270 | auto untypedThisInit = new ast::UntypedExpr( |
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| 271 | getLocation(), new ast::NameExpr(getLocation(), "?++"), |
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| 272 | {prevInitExpr}); |
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| 273 | return new ast::SingleInit(getLocation(), untypedThisInit); |
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| 274 | } |
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[af746cc] | 275 | } |
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| 276 | |
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| 277 | ast::FunctionDecl* EnumAttrFuncGenerator::genProto( |
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[fc1a3e2] | 278 | std::string&& name, std::vector<ast::ptr<ast::DeclWithType>>&& params, |
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| 279 | std::vector<ast::ptr<ast::DeclWithType>>&& returns) const { |
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| 280 | ast::FunctionDecl* decl = new ast::FunctionDecl( |
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| 281 | // Auto-generated routines use the type declaration's location. |
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| 282 | getLocation(), std::move(name), {}, {}, std::move(params), |
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| 283 | std::move(returns), |
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| 284 | // Only a prototype, no body. |
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| 285 | nullptr, |
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| 286 | // Use static storage if we are at the top level. |
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| 287 | (0 < functionNesting) ? ast::Storage::Classes() : ast::Storage::Static, |
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| 288 | proto_linkage, std::vector<ast::ptr<ast::Attribute>>(), |
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| 289 | // Auto-generated routines are inline to avoid conflicts. |
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| 290 | ast::Function::Specs(ast::Function::Inline)); |
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| 291 | decl->fixUniqueId(); |
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| 292 | return decl; |
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[af746cc] | 293 | } |
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| 294 | |
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| 295 | void EnumAttrFuncGenerator::produceDecl(const ast::FunctionDecl* decl) { |
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[fc1a3e2] | 296 | assert(nullptr != decl->stmts); |
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[af746cc] | 297 | |
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[fc1a3e2] | 298 | definitions.push_back(decl); |
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[af746cc] | 299 | } |
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| 300 | |
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| 301 | void EnumAttrFuncGenerator::produceForwardDecl(const ast::FunctionDecl* decl) { |
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[fc1a3e2] | 302 | if (0 != functionNesting) return; |
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| 303 | ast::FunctionDecl* fwd = |
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| 304 | (decl->stmts) ? ast::asForward(decl) : ast::deepCopy(decl); |
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| 305 | fwd->fixUniqueId(); |
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| 306 | forwards.push_back(fwd); |
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[af746cc] | 307 | } |
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| 308 | |
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| 309 | ast::FunctionDecl* EnumAttrFuncGenerator::genPosnProto() const { |
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| 310 | return genProto( |
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| 311 | "posE", |
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| 312 | {new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl))}, |
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| 313 | {new ast::ObjectDecl(getLocation(), "_ret", |
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[cf191ac] | 314 | new ast::BasicType(ast::BasicKind::UnsignedInt))}); |
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[af746cc] | 315 | } |
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| 316 | |
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| 317 | ast::FunctionDecl* EnumAttrFuncGenerator::genLabelProto() const { |
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[fc1a3e2] | 318 | return genProto( |
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| 319 | "labelE", |
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| 320 | {new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl))}, |
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| 321 | {new ast::ObjectDecl( |
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| 322 | getLocation(), "_ret", |
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| 323 | new ast::PointerType(new ast::BasicType{ast::BasicKind::Char}))}); |
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[af746cc] | 324 | } |
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| 325 | |
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| 326 | ast::FunctionDecl* EnumAttrFuncGenerator::genValueProto() const { |
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[fc1a3e2] | 327 | return genProto( |
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| 328 | "valueE", |
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| 329 | {new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl))}, |
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| 330 | {new ast::ObjectDecl(getLocation(), "_ret", |
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| 331 | ast::deepCopy(decl->base))}); |
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[af746cc] | 332 | } |
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| 333 | |
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[eb7586e] | 334 | ast::FunctionDecl* EnumAttrFuncGenerator::genFromIntProto() const { |
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| 335 | return genProto( |
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| 336 | "fromInt", |
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| 337 | {new ast::ObjectDecl(getLocation(), "_i", new ast::BasicType(ast::BasicKind::UnsignedInt))}, |
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| 338 | {new ast::ObjectDecl(getLocation(), "_ret", new ast::EnumInstType(decl))} |
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| 339 | ); |
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| 340 | } |
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| 341 | |
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| 342 | ast::FunctionDecl* EnumAttrFuncGenerator::genFromInstanceProto() const { |
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| 343 | return genProto( |
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| 344 | "fromInstance", |
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| 345 | {new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl))}, |
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| 346 | {new ast::ObjectDecl(getLocation(), "_ret", new ast::BasicType(ast::BasicKind::UnsignedInt))} |
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| 347 | ); |
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| 348 | } |
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| 349 | |
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| 350 | void EnumAttrFuncGenerator::genFromIntBody(ast::FunctionDecl* func) const { |
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| 351 | auto params = func->params; |
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| 352 | assert( params.size() == 1 ); |
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| 353 | auto param = params.front(); |
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| 354 | auto castExpr = new ast::CastExpr( |
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| 355 | func->location, |
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| 356 | new ast::VariableExpr(func->location, param), |
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| 357 | new ast::EnumInstType(decl), |
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| 358 | ast::GeneratedFlag::ExplicitCast |
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| 359 | ); |
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| 360 | func->stmts = new ast::CompoundStmt( |
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| 361 | func->location, {new ast::ReturnStmt(func->location, castExpr)} |
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| 362 | ); |
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| 363 | } |
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| 364 | |
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| 365 | void EnumAttrFuncGenerator::genFromInstanceBody(ast::FunctionDecl* func) const { |
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| 366 | auto params = func->params; |
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| 367 | assert( params.size() == 1 ); |
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| 368 | auto param = params.front(); |
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| 369 | ast::UntypedExpr* untyped = ast::UntypedExpr::createCall( |
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| 370 | func->location, "posE", { new ast::VariableExpr(func->location, param) }); |
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| 371 | func->stmts = new ast::CompoundStmt( |
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| 372 | func->location, {new ast::ReturnStmt(func->location, untyped)} |
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| 373 | ); |
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| 374 | } |
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| 375 | |
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| 376 | void EnumAttrFuncGenerator::genSerialTraitFuncs() { |
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| 377 | auto fromIntProto = genFromIntProto(); |
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| 378 | produceForwardDecl(fromIntProto); |
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| 379 | genFromIntBody(fromIntProto); |
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| 380 | produceDecl(fromIntProto); |
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| 381 | |
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| 382 | auto fromInstanceProto = genFromInstanceProto(); |
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| 383 | produceForwardDecl(fromInstanceProto); |
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| 384 | genFromInstanceBody(fromInstanceProto); |
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| 385 | produceDecl(fromInstanceProto); |
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| 386 | |
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| 387 | auto succProto = genSuccProto(); |
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| 388 | auto predProto = genPredProto(); |
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| 389 | produceForwardDecl(succProto); |
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| 390 | produceForwardDecl(predProto); |
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| 391 | } |
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| 392 | |
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[af746cc] | 393 | ast::FunctionDecl* EnumAttrFuncGenerator::genSuccProto() const { |
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[fc1a3e2] | 394 | return genProto( |
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| 395 | "succ", |
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| 396 | {new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl))}, |
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| 397 | {new ast::ObjectDecl(getLocation(), "_ret", |
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| 398 | new ast::EnumInstType(decl))}); |
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[af746cc] | 399 | } |
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| 400 | |
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| 401 | ast::FunctionDecl* EnumAttrFuncGenerator::genPredProto() const { |
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[fc1a3e2] | 402 | return genProto( |
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| 403 | "pred", |
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| 404 | {new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl))}, |
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| 405 | {new ast::ObjectDecl(getLocation(), "_ret", |
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| 406 | new ast::EnumInstType(decl))}); |
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[af746cc] | 407 | } |
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| 408 | |
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[eb7586e] | 409 | ast::FunctionDecl* EnumAttrFuncGenerator::genLowerBoundProto() const { |
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| 410 | return genProto("lowerBound", {}, { |
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| 411 | new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl)) |
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| 412 | }); |
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| 413 | } |
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| 414 | |
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| 415 | ast::FunctionDecl* EnumAttrFuncGenerator::genUpperBoundProto() const { |
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| 416 | return genProto("upperBound", {}, { |
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| 417 | new ast::ObjectDecl(getLocation(), "_i", new ast::EnumInstType(decl)) |
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| 418 | }); |
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| 419 | } |
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| 420 | |
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| 421 | void EnumAttrFuncGenerator::genLowerBoundBody(ast::FunctionDecl* func) const { |
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| 422 | const CodeLocation & loc = func->location; |
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| 423 | auto mem = decl->members.front(); |
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| 424 | // auto expr = new ast::QualifiedNameExpr( loc, decl, mem->name ); |
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| 425 | // expr->result = new ast::EnumInstType( decl ); |
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| 426 | auto expr = new ast::NameExpr( loc, mem->name ); |
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| 427 | func->stmts = new ast::CompoundStmt( loc, {new ast::ReturnStmt(loc, expr)}); |
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| 428 | } |
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| 429 | |
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| 430 | void EnumAttrFuncGenerator::genUpperBoundBody(ast::FunctionDecl* func) const { |
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| 431 | const CodeLocation & loc = func->location; |
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| 432 | auto mem = decl->members.back(); |
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| 433 | auto expr = new ast::NameExpr( loc, mem->name ); |
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| 434 | // expr->result = new ast::EnumInstType( decl ); |
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| 435 | func->stmts = new ast::CompoundStmt( loc, {new ast::ReturnStmt(loc, expr)}); |
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| 436 | } |
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| 437 | |
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| 438 | void EnumAttrFuncGenerator::genBoundedFunctions() { |
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| 439 | ast::FunctionDecl * upperDecl = genUpperBoundProto(); |
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| 440 | produceForwardDecl(upperDecl); |
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| 441 | genUpperBoundBody(upperDecl); |
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| 442 | produceDecl(upperDecl); |
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| 443 | |
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| 444 | ast::FunctionDecl * lowerDecl = genLowerBoundProto(); |
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| 445 | produceForwardDecl(lowerDecl); |
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| 446 | genLowerBoundBody(lowerDecl); |
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| 447 | produceDecl(lowerDecl); |
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| 448 | } |
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| 449 | |
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[af746cc] | 450 | inline ast::EnumAttrType * getPosnType( const ast::EnumDecl * decl ) { |
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[fc1a3e2] | 451 | return new ast::EnumAttrType(new ast::EnumInstType(decl), ast::EnumAttribute::Posn); |
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[af746cc] | 452 | } |
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| 453 | |
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| 454 | ast::FunctionDecl* EnumAttrFuncGenerator::genSuccPosProto() const { |
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[fc1a3e2] | 455 | return genProto( |
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| 456 | "_successor_", |
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| 457 | {new ast::ObjectDecl(getLocation(), "_i", getPosnType(decl))}, |
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| 458 | {new ast::ObjectDecl(getLocation(), "_ret", getPosnType(decl))} |
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| 459 | ); |
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[af746cc] | 460 | } |
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| 461 | |
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| 462 | ast::FunctionDecl* EnumAttrFuncGenerator::genPredPosProto() const { |
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[fc1a3e2] | 463 | return genProto( |
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| 464 | "_predessor_", |
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| 465 | {new ast::ObjectDecl(getLocation(), "_i", getPosnType(decl))}, |
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| 466 | {new ast::ObjectDecl(getLocation(), "_ret", getPosnType(decl))} |
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| 467 | ); |
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[af746cc] | 468 | } |
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| 469 | |
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| 470 | ast::ObjectDecl* EnumAttrFuncGenerator::genAttrArrayProto( |
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[fc1a3e2] | 471 | const ast::EnumAttribute attr, const CodeLocation& location, |
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| 472 | std::vector<ast::ptr<ast::Init>>& inits) const { |
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| 473 | ast::ArrayType* arrT = new ast::ArrayType( |
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| 474 | attr == ast::EnumAttribute::Value |
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| 475 | ? decl->base |
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| 476 | : new ast::PointerType(new ast::BasicType{ast::BasicKind::Char}), |
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| 477 | ast::ConstantExpr::from_int(decl->location, decl->members.size()), |
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| 478 | ast::LengthFlag::FixedLen, ast::DimensionFlag::DynamicDim); |
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| 479 | |
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| 480 | ast::ObjectDecl* objDecl = |
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| 481 | new ast::ObjectDecl( |
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| 482 | decl->location, decl->getUnmangeldArrayName( attr ), |
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| 483 | arrT, new ast::ListInit( location, std::move( inits ) ), |
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| 484 | ast::Storage::Static, ast::Linkage::AutoGen ); |
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| 485 | |
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| 486 | return objDecl; |
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[af746cc] | 487 | } |
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| 488 | |
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| 489 | void EnumAttrFuncGenerator::genValueOrLabelBody( |
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[fc1a3e2] | 490 | ast::FunctionDecl* func, ast::ObjectDecl* arrDecl) const { |
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| 491 | ast::UntypedExpr* untyped = ast::UntypedExpr::createCall( |
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| 492 | func->location, "?[?]", |
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| 493 | {new ast::NameExpr(func->location, arrDecl->name), |
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[eb7586e] | 494 | new ast::CastExpr( |
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| 495 | func->location, |
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| 496 | new ast::VariableExpr( func->location, func->params.front() ), |
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| 497 | new ast::EnumAttrType( new ast::EnumInstType(decl), |
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| 498 | ast::EnumAttribute::Posn))}); |
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[fc1a3e2] | 499 | func->stmts = new ast::CompoundStmt( |
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| 500 | func->location, {new ast::ReturnStmt(func->location, untyped)}); |
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[af746cc] | 501 | } |
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| 502 | |
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| 503 | void EnumAttrFuncGenerator::genPosnBody(ast::FunctionDecl* func) const { |
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[fc1a3e2] | 504 | auto castExpr = new ast::CastExpr( |
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| 505 | func->location, |
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| 506 | new ast::VariableExpr(func->location, func->params.front()), |
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| 507 | new ast::EnumAttrType(new ast::EnumInstType(decl), |
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| 508 | ast::EnumAttribute::Posn)); |
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| 509 | func->stmts = new ast::CompoundStmt( |
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| 510 | func->location, {new ast::ReturnStmt(func->location, castExpr)}); |
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[af746cc] | 511 | } |
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| 512 | |
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| 513 | void EnumAttrFuncGenerator::genAttributesDecls(const ast::EnumAttribute attr) { |
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[fc1a3e2] | 514 | if (attr == ast::EnumAttribute::Value || |
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| 515 | attr == ast::EnumAttribute::Label) { |
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| 516 | std::vector<ast::ptr<ast::Init>> inits = |
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| 517 | attr == ast::EnumAttribute::Value ? genValueInit() : genLabelInit(); |
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| 518 | ast::ObjectDecl* arrayProto = |
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| 519 | genAttrArrayProto(attr, getLocation(), inits); |
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| 520 | forwards.push_back(arrayProto); |
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| 521 | |
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| 522 | ast::FunctionDecl* funcProto = ( attr == ast::EnumAttribute::Value ) |
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| 523 | ? genValueProto() |
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| 524 | : genLabelProto(); |
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| 525 | produceForwardDecl(funcProto); |
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| 526 | genValueOrLabelBody(funcProto, arrayProto); |
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| 527 | produceDecl(funcProto); |
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| 528 | } else { |
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| 529 | ast::FunctionDecl* funcProto = genPosnProto(); |
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| 530 | produceForwardDecl(funcProto); |
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| 531 | genPosnBody(funcProto); |
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| 532 | produceDecl(funcProto); |
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| 533 | } |
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[af746cc] | 534 | } |
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| 535 | |
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| 536 | ast::FunctionDecl* EnumAttrFuncGenerator::genSuccPredFunc(bool succ) { |
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[fc1a3e2] | 537 | ast::FunctionDecl* funcDecl = succ ? genSuccPosProto() : genPredPosProto(); |
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| 538 | produceForwardDecl(funcDecl); |
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[af746cc] | 539 | |
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[fc1a3e2] | 540 | const CodeLocation& location = getLocation(); |
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[af746cc] | 541 | |
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[fc1a3e2] | 542 | auto& params = funcDecl->params; |
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| 543 | assert(params.size() == 1); |
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| 544 | auto param = params.front().strict_as<ast::ObjectDecl>(); |
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[af746cc] | 545 | |
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| 546 | |
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[fc1a3e2] | 547 | auto rets = funcDecl->returns; |
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| 548 | assert(params.size() == 1); |
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| 549 | auto ret = rets.front().strict_as<ast::ObjectDecl>(); |
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| 550 | auto retType = ret->type.strict_as<ast::EnumAttrType>(); |
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[af746cc] | 551 | |
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[fc1a3e2] | 552 | auto addOneExpr = ast::UntypedExpr::createCall( location, |
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| 553 | succ? "?+?": "?-?", |
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| 554 | {new ast::VariableExpr(location, param), |
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| 555 | ast::ConstantExpr::from_int(location, 1)} |
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| 556 | ); |
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[af746cc] | 557 | |
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[fc1a3e2] | 558 | funcDecl->stmts = new ast::CompoundStmt( |
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| 559 | location, { |
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| 560 | new ast::ReturnStmt( |
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| 561 | location, |
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| 562 | new ast::CastExpr(location, addOneExpr, retType) |
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| 563 | ) |
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| 564 | } |
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| 565 | ); |
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[af746cc] | 566 | |
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[fc1a3e2] | 567 | return funcDecl; |
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[af746cc] | 568 | } |
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| 569 | |
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| 570 | void EnumAttrFuncGenerator::genAttrFunctions() { |
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[eb7586e] | 571 | genAttributesDecls(ast::EnumAttribute::Value); |
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| 572 | genAttributesDecls(ast::EnumAttribute::Label); |
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| 573 | genAttributesDecls(ast::EnumAttribute::Posn); |
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[af746cc] | 574 | } |
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| 575 | |
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[eb7586e] | 576 | // void EnumAttrFuncGenerator::genSuccPredDecl() { |
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| 577 | // auto succProto = genSuccProto(); |
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| 578 | // auto predProto = genPredProto(); |
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[af746cc] | 579 | |
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[eb7586e] | 580 | // produceForwardDecl(succProto); |
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| 581 | // produceForwardDecl(predProto); |
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| 582 | // } |
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[af746cc] | 583 | |
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| 584 | void EnumAttrFuncGenerator::genSuccPredPosn() { |
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[eb7586e] | 585 | ast::FunctionDecl* succ = genSuccPredFunc(true); |
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| 586 | ast::FunctionDecl* pred = genSuccPredFunc(false); |
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[af746cc] | 587 | |
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[eb7586e] | 588 | produceDecl(succ); |
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| 589 | produceDecl(pred); |
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[af746cc] | 590 | } |
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| 591 | |
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| 592 | void EnumAttrFuncGenerator::generateAndAppendFunctions( |
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[fc1a3e2] | 593 | std::list<ast::ptr<ast::Decl>>& decls) { |
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| 594 | // Generate the functions (they go into forwards and definitions). |
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| 595 | genAttrStandardFuncs(); |
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| 596 | genAttrFunctions(); |
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[eb7586e] | 597 | genSerialTraitFuncs(); |
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| 598 | genSuccPredPosn(); |
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| 599 | // problematic |
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| 600 | genBoundedFunctions(); |
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[fc1a3e2] | 601 | // Now export the lists contents. |
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| 602 | decls.splice(decls.end(), forwards); |
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| 603 | decls.splice(decls.end(), definitions); |
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[af746cc] | 604 | } |
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| 605 | |
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| 606 | // --------------------------------------------------------- |
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| 607 | |
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[fc1a3e2] | 608 | struct ImplementEnumFunc final : |
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| 609 | public ast::WithDeclsToAdd<>, public ast::WithShortCircuiting { |
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| 610 | void previsit(const ast::EnumDecl* enumDecl); |
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| 611 | void previsit(const ast::FunctionDecl* functionDecl); |
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| 612 | void postvisit(const ast::FunctionDecl* functionDecl); |
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[af746cc] | 613 | |
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[fc1a3e2] | 614 | private: |
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| 615 | // Current level of nested functions. |
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| 616 | unsigned int functionNesting = 0; |
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[af746cc] | 617 | }; |
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| 618 | |
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| 619 | void ImplementEnumFunc::previsit(const ast::EnumDecl* enumDecl) { |
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[fc1a3e2] | 620 | if (!enumDecl->body) return; |
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| 621 | if (!enumDecl->base) return; |
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[af746cc] | 622 | |
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[fc1a3e2] | 623 | ast::EnumInstType enumInst(enumDecl->name); |
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| 624 | enumInst.base = enumDecl; |
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[dc58e5d] | 625 | |
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[fc1a3e2] | 626 | EnumAttrFuncGenerator gen(enumDecl, &enumInst, functionNesting); |
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| 627 | gen.generateAndAppendFunctions(declsToAddAfter); |
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[af746cc] | 628 | } |
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| 629 | |
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| 630 | void ImplementEnumFunc::previsit(const ast::FunctionDecl*) { |
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[fc1a3e2] | 631 | functionNesting += 1; |
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[af746cc] | 632 | } |
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| 633 | |
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| 634 | void ImplementEnumFunc::postvisit(const ast::FunctionDecl*) { |
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[fc1a3e2] | 635 | functionNesting -= 1; |
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[af746cc] | 636 | } |
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| 637 | |
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[fc1a3e2] | 638 | } // namespace |
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[af746cc] | 639 | |
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| 640 | void implementEnumFunc(ast::TranslationUnit& translationUnit) { |
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[fc1a3e2] | 641 | ast::Pass<ImplementEnumFunc>::run(translationUnit); |
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[af746cc] | 642 | } |
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[fc1a3e2] | 643 | |
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| 644 | } // namespace Validate |
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