Changeset c6b4432 for src/CodeGen/GenType.cc
- Timestamp:
- Nov 8, 2023, 2:01:11 PM (12 months ago)
- Branches:
- master
- Children:
- 3e4bf0d, f5ec35a
- Parents:
- 790d835
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
src/CodeGen/GenType.cc
r790d835 rc6b4432 21 21 #include "AST/Print.hpp" // for print 22 22 #include "AST/Vector.hpp" // for vector 23 #include "CodeGenerator.h" // for CodeGenerator24 23 #include "CodeGeneratorNew.hpp" // for CodeGenerator_new 25 24 #include "Common/UniqueName.h" // for UniqueName 26 #include "SynTree/Declaration.h" // for DeclarationWithType27 #include "SynTree/Expression.h" // for Expression28 #include "SynTree/Type.h" // for PointerType, Type, FunctionType29 #include "SynTree/Visitor.h" // for Visitor30 25 31 26 namespace CodeGen { 32 struct GenType : public WithVisitorRef<GenType>, public WithShortCircuiting {33 std::string typeString;34 GenType( const std::string &typeString, const Options &options );35 36 void previsit( BaseSyntaxNode * );37 void postvisit( BaseSyntaxNode * );38 39 void postvisit( FunctionType * funcType );40 void postvisit( VoidType * voidType );41 void postvisit( BasicType * basicType );42 void postvisit( PointerType * pointerType );43 void postvisit( ArrayType * arrayType );44 void postvisit( ReferenceType * refType );45 void postvisit( StructInstType * structInst );46 void postvisit( UnionInstType * unionInst );47 void postvisit( EnumInstType * enumInst );48 void postvisit( TypeInstType * typeInst );49 void postvisit( TupleType * tupleType );50 void postvisit( VarArgsType * varArgsType );51 void postvisit( ZeroType * zeroType );52 void postvisit( OneType * oneType );53 void postvisit( GlobalScopeType * globalType );54 void postvisit( TraitInstType * inst );55 void postvisit( TypeofType * typeof );56 void postvisit( VTableType * vtable );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 Options options;65 };66 67 std::string genType( Type *type, const std::string &baseString, const Options &options ) {68 PassVisitor<GenType> gt( baseString, options );69 std::ostringstream os;70 71 if ( ! type->get_attributes().empty() ) {72 PassVisitor<CodeGenerator> cg( os, options );73 cg.pass.genAttributes( type->get_attributes() );74 } // if75 76 type->accept( gt );77 return os.str() + gt.pass.typeString;78 }79 80 std::string genType( Type *type, const std::string &baseString, bool pretty, bool genC , bool lineMarks ) {81 return genType( type, baseString, Options(pretty, genC, lineMarks, false ) );82 }83 84 std::string genPrettyType( Type * type, const std::string & baseString ) {85 return genType( type, baseString, true, false );86 }87 88 GenType::GenType( const std::string &typeString, const Options &options ) : typeString( typeString ), options( options ) {}89 90 // *** BaseSyntaxNode91 void GenType::previsit( BaseSyntaxNode * ) {92 // turn off automatic recursion for all nodes, to allow each visitor to93 // precisely control the order in which its children are visited.94 visit_children = false;95 }96 97 void GenType::postvisit( BaseSyntaxNode * node ) {98 std::stringstream ss;99 node->print( ss );100 assertf( false, "Unhandled node reached in GenType: %s", ss.str().c_str() );101 }102 103 void GenType::postvisit( VoidType * voidType ) {104 typeString = "void " + typeString;105 handleQualifiers( voidType );106 }107 108 void GenType::postvisit( BasicType * basicType ) {109 BasicType::Kind kind = basicType->kind;110 assert( 0 <= kind && kind < BasicType::NUMBER_OF_BASIC_TYPES );111 typeString = std::string( BasicType::typeNames[kind] ) + " " + typeString;112 handleQualifiers( basicType );113 }114 115 void GenType::genArray( const Type::Qualifiers & qualifiers, Type * base, Expression *dimension, bool isVarLen, bool isStatic ) {116 std::ostringstream os;117 if ( typeString != "" ) {118 if ( typeString[ 0 ] == '*' ) {119 os << "(" << typeString << ")";120 } else {121 os << typeString;122 } // if123 } // if124 os << "[";125 126 if ( isStatic ) {127 os << "static ";128 } // if129 if ( qualifiers.is_const ) {130 os << "const ";131 } // if132 if ( qualifiers.is_volatile ) {133 os << "volatile ";134 } // if135 if ( qualifiers.is_restrict ) {136 os << "__restrict ";137 } // if138 if ( qualifiers.is_atomic ) {139 os << "_Atomic ";140 } // if141 if ( dimension != 0 ) {142 PassVisitor<CodeGenerator> cg( os, options );143 dimension->accept( cg );144 } else if ( isVarLen ) {145 // no dimension expression on a VLA means it came in with the * token146 os << "*";147 } // if148 os << "]";149 150 typeString = os.str();151 152 base->accept( *visitor );153 }154 155 void GenType::postvisit( PointerType * pointerType ) {156 assert( pointerType->base != 0);157 if ( pointerType->get_isStatic() || pointerType->get_isVarLen() || pointerType->dimension ) {158 genArray( pointerType->get_qualifiers(), pointerType->base, pointerType->dimension, pointerType->get_isVarLen(), pointerType->get_isStatic() );159 } else {160 handleQualifiers( pointerType );161 if ( typeString[ 0 ] == '?' ) {162 typeString = "* " + typeString;163 } else {164 typeString = "*" + typeString;165 } // if166 pointerType->base->accept( *visitor );167 } // if168 }169 170 void GenType::postvisit( ArrayType * arrayType ) {171 genArray( arrayType->get_qualifiers(), arrayType->base, arrayType->dimension, arrayType->get_isVarLen(), arrayType->get_isStatic() );172 }173 174 void GenType::postvisit( ReferenceType * refType ) {175 assert( 0 != refType->base );176 assertf( ! options.genC, "Reference types should not reach code generation." );177 handleQualifiers( refType );178 typeString = "&" + typeString;179 refType->base->accept( *visitor );180 }181 182 void GenType::postvisit( FunctionType * funcType ) {183 std::ostringstream os;184 185 if ( typeString != "" ) {186 if ( typeString[ 0 ] == '*' ) {187 os << "(" << typeString << ")";188 } else {189 os << typeString;190 } // if191 } // if192 193 /************* parameters ***************/194 195 const std::list<DeclarationWithType *> &pars = funcType->parameters;196 197 if ( pars.empty() ) {198 if ( funcType->get_isVarArgs() ) {199 os << "()";200 } else {201 os << "(void)";202 } // if203 } else {204 PassVisitor<CodeGenerator> cg( os, options );205 os << "(" ;206 207 cg.pass.genCommaList( pars.begin(), pars.end() );208 209 if ( funcType->get_isVarArgs() ) {210 os << ", ...";211 } // if212 os << ")";213 } // if214 215 typeString = os.str();216 217 if ( funcType->returnVals.size() == 0 ) {218 typeString = "void " + typeString;219 } else {220 funcType->returnVals.front()->get_type()->accept( *visitor );221 } // if222 223 // add forall224 if( ! funcType->forall.empty() && ! options.genC ) {225 // assertf( ! genC, "Aggregate type parameters should not reach code generation." );226 std::ostringstream os;227 PassVisitor<CodeGenerator> cg( os, options );228 os << "forall(";229 cg.pass.genCommaList( funcType->forall.begin(), funcType->forall.end() );230 os << ")" << std::endl;231 typeString = os.str() + typeString;232 }233 }234 235 std::string GenType::handleGeneric( ReferenceToType * refType ) {236 if ( ! refType->parameters.empty() ) {237 std::ostringstream os;238 PassVisitor<CodeGenerator> cg( os, options );239 os << "(";240 cg.pass.genCommaList( refType->parameters.begin(), refType->parameters.end() );241 os << ") ";242 return os.str();243 }244 return "";245 }246 247 void GenType::postvisit( StructInstType * structInst ) {248 typeString = structInst->name + handleGeneric( structInst ) + " " + typeString;249 if ( options.genC ) typeString = "struct " + typeString;250 handleQualifiers( structInst );251 }252 253 void GenType::postvisit( UnionInstType * unionInst ) {254 typeString = unionInst->name + handleGeneric( unionInst ) + " " + typeString;255 if ( options.genC ) typeString = "union " + typeString;256 handleQualifiers( unionInst );257 }258 259 void GenType::postvisit( EnumInstType * enumInst ) {260 if ( enumInst->baseEnum && enumInst->baseEnum->base ) {261 typeString = genType(enumInst->baseEnum->base, typeString, options);262 } else {263 typeString = enumInst->name + " " + typeString;264 if ( options.genC ) {265 typeString = "enum " + typeString;266 }267 }268 handleQualifiers( enumInst );269 }270 271 void GenType::postvisit( TypeInstType * typeInst ) {272 assertf( ! options.genC, "Type instance types should not reach code generation." );273 typeString = typeInst->name + " " + typeString;274 handleQualifiers( typeInst );275 }276 277 void GenType::postvisit( TupleType * tupleType ) {278 assertf( ! options.genC, "Tuple types should not reach code generation." );279 unsigned int i = 0;280 std::ostringstream os;281 os << "[";282 for ( Type * t : *tupleType ) {283 i++;284 os << genType( t, "", options ) << (i == tupleType->size() ? "" : ", ");285 }286 os << "] ";287 typeString = os.str() + typeString;288 }289 290 void GenType::postvisit( VarArgsType * varArgsType ) {291 typeString = "__builtin_va_list " + typeString;292 handleQualifiers( varArgsType );293 }294 295 void GenType::postvisit( ZeroType * zeroType ) {296 // ideally these wouldn't hit codegen at all, but should be safe to make them ints297 typeString = (options.pretty ? "zero_t " : "long int ") + typeString;298 handleQualifiers( zeroType );299 }300 301 void GenType::postvisit( OneType * oneType ) {302 // ideally these wouldn't hit codegen at all, but should be safe to make them ints303 typeString = (options.pretty ? "one_t " : "long int ") + typeString;304 handleQualifiers( oneType );305 }306 307 void GenType::postvisit( GlobalScopeType * globalType ) {308 assertf( ! options.genC, "Global scope type should not reach code generation." );309 handleQualifiers( globalType );310 }311 312 void GenType::postvisit( TraitInstType * inst ) {313 assertf( ! options.genC, "Trait types should not reach code generation." );314 typeString = inst->name + " " + typeString;315 handleQualifiers( inst );316 }317 318 void GenType::postvisit( TypeofType * typeof ) {319 std::ostringstream os;320 PassVisitor<CodeGenerator> cg( os, options );321 os << "typeof(";322 typeof->expr->accept( cg );323 os << ") " << typeString;324 typeString = os.str();325 handleQualifiers( typeof );326 }327 328 void GenType::postvisit( VTableType * vtable ) {329 assertf( ! options.genC, "Virtual table types should not reach code generation." );330 std::ostringstream os;331 os << "vtable(" << genType( vtable->base, "", options ) << ") " << typeString;332 typeString = os.str();333 handleQualifiers( vtable );334 }335 336 void GenType::postvisit( QualifiedType * qualType ) {337 assertf( ! options.genC, "Qualified types should not reach code generation." );338 std::ostringstream os;339 os << genType( qualType->parent, "", options ) << "." << genType( qualType->child, "", options ) << typeString;340 typeString = os.str();341 handleQualifiers( qualType );342 }343 344 void GenType::handleQualifiers( Type * type ) {345 if ( type->get_const() ) {346 typeString = "const " + typeString;347 } // if348 if ( type->get_volatile() ) {349 typeString = "volatile " + typeString;350 } // if351 if ( type->get_restrict() ) {352 typeString = "__restrict " + typeString;353 } // if354 if ( type->get_atomic() ) {355 typeString = "_Atomic " + typeString;356 } // if357 }358 27 359 28 namespace {
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