Changeset 0589e83 for src/SymTab/Demangle.cc
- Timestamp:
- Nov 7, 2023, 11:14:11 AM (11 months ago)
- Branches:
- master
- Children:
- 934fa0f
- Parents:
- c46c999
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
src/SymTab/Demangle.cc
rc46c999 r0589e83 31 31 #define PRINT(x) {} 32 32 #endif 33 34 namespace {35 struct GenType : public WithVisitorRef<GenType>, public WithShortCircuiting {36 std::string typeString;37 GenType( const std::string &typeString );38 39 void previsit( BaseSyntaxNode * );40 void postvisit( BaseSyntaxNode * );41 42 void postvisit( FunctionType * funcType );43 void postvisit( VoidType * voidType );44 void postvisit( BasicType * basicType );45 void postvisit( PointerType * pointerType );46 void postvisit( ArrayType * arrayType );47 void postvisit( ReferenceType * refType );48 void postvisit( StructInstType * structInst );49 void postvisit( UnionInstType * unionInst );50 void postvisit( EnumInstType * enumInst );51 void postvisit( TypeInstType * typeInst );52 void postvisit( TupleType * tupleType );53 void postvisit( VarArgsType * varArgsType );54 void postvisit( ZeroType * zeroType );55 void postvisit( OneType * oneType );56 void postvisit( GlobalScopeType * globalType );57 void postvisit( QualifiedType * qualType );58 59 private:60 void handleQualifiers( Type *type );61 std::string handleGeneric( ReferenceToType * refType );62 void genArray( const Type::Qualifiers &qualifiers, Type *base, Expression *dimension, bool isVarLen, bool isStatic );63 };64 65 std::string genDemangleType( Type * type, const std::string & baseString ) {66 PassVisitor<GenType> gt( baseString );67 assert( type );68 type->accept( gt );69 return gt.pass.typeString;70 }71 72 GenType::GenType( const std::string &typeString ) : typeString( typeString ) {}73 74 // *** BaseSyntaxNode75 void GenType::previsit( BaseSyntaxNode * ) {76 // turn off automatic recursion for all nodes, to allow each visitor to77 // precisely control the order in which its children are visited.78 visit_children = false;79 }80 81 void GenType::postvisit( BaseSyntaxNode * node ) {82 std::stringstream ss;83 node->print( ss );84 assertf( false, "Unhandled node reached in GenType: %s", ss.str().c_str() );85 }86 87 void GenType::postvisit( VoidType * voidType ) {88 typeString = "void " + typeString;89 handleQualifiers( voidType );90 }91 92 void GenType::postvisit( BasicType * basicType ) {93 BasicType::Kind kind = basicType->kind;94 assert( 0 <= kind && kind < BasicType::NUMBER_OF_BASIC_TYPES );95 typeString = std::string( BasicType::typeNames[kind] ) + " " + typeString;96 handleQualifiers( basicType );97 }98 99 void GenType::genArray( const Type::Qualifiers & qualifiers, Type * base, Expression *dimension, bool isVarLen, bool ) {100 std::ostringstream os;101 if ( typeString != "" ) {102 if ( typeString[ 0 ] == '*' ) {103 os << "(" << typeString << ")";104 } else {105 os << typeString;106 } // if107 } // if108 os << "[";109 110 if ( qualifiers.is_const ) {111 os << "const ";112 } // if113 if ( qualifiers.is_volatile ) {114 os << "volatile ";115 } // if116 if ( qualifiers.is_restrict ) {117 os << "__restrict ";118 } // if119 if ( qualifiers.is_atomic ) {120 os << "_Atomic ";121 } // if122 if ( dimension != 0 ) {123 // TODO: ???124 // PassVisitor<CodeGenerator> cg( os, pretty, genC, lineMarks );125 // dimension->accept( cg );126 } else if ( isVarLen ) {127 // no dimension expression on a VLA means it came in with the * token128 os << "*";129 } // if130 os << "]";131 132 typeString = os.str();133 134 base->accept( *visitor );135 }136 137 void GenType::postvisit( PointerType * pointerType ) {138 assert( pointerType->base != 0);139 if ( pointerType->get_isStatic() || pointerType->get_isVarLen() || pointerType->dimension ) {140 assert(false);141 genArray( pointerType->get_qualifiers(), pointerType->base, pointerType->dimension, pointerType->get_isVarLen(), pointerType->get_isStatic() );142 } else {143 handleQualifiers( pointerType );144 if ( typeString[ 0 ] == '?' ) {145 typeString = "* " + typeString;146 } else {147 typeString = "*" + typeString;148 } // if149 pointerType->base->accept( *visitor );150 } // if151 }152 153 void GenType::postvisit( ArrayType * arrayType ) {154 genArray( arrayType->get_qualifiers(), arrayType->base, arrayType->dimension, arrayType->get_isVarLen(), arrayType->get_isStatic() );155 }156 157 void GenType::postvisit( ReferenceType * refType ) {158 assert( false );159 assert( refType->base != 0);160 handleQualifiers( refType );161 typeString = "&" + typeString;162 refType->base->accept( *visitor );163 }164 165 void GenType::postvisit( FunctionType * funcType ) {166 std::ostringstream os;167 168 if ( typeString != "" ) {169 if ( typeString[0] == '*' ) {170 os << "(" << typeString << ")";171 } else {172 os << typeString;173 } // if174 } // if175 176 /************* parameters ***************/177 const std::list<DeclarationWithType *> &pars = funcType->parameters;178 179 if ( pars.empty() ) {180 if ( funcType->get_isVarArgs() ) {181 os << "()";182 } else {183 os << "(void)";184 } // if185 } else {186 os << "(" ;187 188 unsigned int i = 0;189 for (DeclarationWithType * p : pars) {190 os << genDemangleType( p->get_type(), "" );191 if (++i != pars.size()) os << ", ";192 }193 194 if ( funcType->get_isVarArgs() ) {195 os << ", ...";196 } // if197 os << ")";198 } // if199 200 typeString = os.str();201 202 if ( funcType->returnVals.size() == 0 ) {203 typeString += ": void";204 } else {205 typeString += ": " + genDemangleType(funcType->returnVals.front()->get_type(), "");206 } // if207 208 // add forall209 if( ! funcType->forall.empty() ) {210 std::ostringstream os;211 os << "forall(";212 unsigned int i = 0;213 for ( auto td : funcType->forall ) {214 os << td->typeString() << " " << td->name;215 if (! td->assertions.empty()) {216 os << " | { ";217 unsigned int j = 0;218 for (DeclarationWithType * assert : td->assertions) {219 os << genDemangleType(assert->get_type(), assert->name);220 if (++j != td->assertions.size()) os << ", ";221 }222 os << "}";223 }224 if (++i != funcType->forall.size()) os << ", ";225 }226 os << ")";227 typeString = typeString + " -> " + os.str();228 }229 }230 231 std::string GenType::handleGeneric( ReferenceToType * refType ) {232 if ( ! refType->parameters.empty() ) {233 std::ostringstream os;234 // TODO: ???235 // PassVisitor<CodeGenerator> cg( os, pretty, genC, lineMarks );236 os << "(";237 // cg.pass.genCommaList( refType->parameters.begin(), refType->parameters.end() );238 os << ") ";239 return os.str();240 }241 return "";242 }243 244 void GenType::postvisit( StructInstType * structInst ) {245 typeString = "struct " + structInst->name + handleGeneric( structInst ) + " " + typeString;246 handleQualifiers( structInst );247 }248 249 void GenType::postvisit( UnionInstType * unionInst ) {250 typeString = "union " + unionInst->name + handleGeneric( unionInst ) + " " + typeString;251 handleQualifiers( unionInst );252 }253 254 void GenType::postvisit( EnumInstType * enumInst ) {255 typeString = "enum " + enumInst->name + " " + typeString;256 handleQualifiers( enumInst );257 }258 259 void GenType::postvisit( TypeInstType * typeInst ) {260 typeString = typeInst->name + " " + typeString;261 handleQualifiers( typeInst );262 }263 264 void GenType::postvisit( TupleType * tupleType ) {265 unsigned int i = 0;266 std::ostringstream os;267 os << "[";268 for ( Type * t : *tupleType ) {269 i++;270 os << genDemangleType( t, "" ) << (i == tupleType->size() ? "" : ", ");271 }272 os << "] ";273 typeString = os.str() + typeString;274 }275 276 void GenType::postvisit( VarArgsType * varArgsType ) {277 typeString = "__builtin_va_list " + typeString;278 handleQualifiers( varArgsType );279 }280 281 void GenType::postvisit( ZeroType * zeroType ) {282 // ideally these wouldn't hit codegen at all, but should be safe to make them ints283 typeString = "zero_t " + typeString;284 handleQualifiers( zeroType );285 }286 287 void GenType::postvisit( OneType * oneType ) {288 // ideally these wouldn't hit codegen at all, but should be safe to make them ints289 typeString = "one_t " + typeString;290 handleQualifiers( oneType );291 }292 293 void GenType::postvisit( GlobalScopeType * globalType ) {294 handleQualifiers( globalType );295 }296 297 void GenType::postvisit( QualifiedType * qualType ) {298 std::ostringstream os;299 os << genDemangleType( qualType->parent, "" ) << "." << genDemangleType( qualType->child, "" ) << typeString;300 typeString = os.str();301 handleQualifiers( qualType );302 }303 304 void GenType::handleQualifiers( Type * type ) {305 if ( type->get_const() ) {306 typeString = "const " + typeString;307 } // if308 if ( type->get_volatile() ) {309 typeString = "volatile " + typeString;310 } // if311 if ( type->get_restrict() ) {312 typeString = "__restrict " + typeString;313 } // if314 if ( type->get_atomic() ) {315 typeString = "_Atomic " + typeString;316 } // if317 }318 }319 320 33 321 34 namespace SymTab { … … 609 322 if (info) name = info->inputName; 610 323 std::unique_ptr<Type> manager(type); 611 return genDemangleType(type, name);324 return CodeGen::genType(type, name); 612 325 } 613 326 } // namespace
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