Changes in src/Parser/DeclarationNode.cc [43c89a7:a7c90d4]
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src/Parser/DeclarationNode.cc (modified) (29 diffs)
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src/Parser/DeclarationNode.cc
r43c89a7 ra7c90d4 10 10 // Created On : Sat May 16 12:34:05 2015 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : T hu Feb 23 22:21:06201713 // Update Count : 77512 // Last Modified On : Tue Mar 7 08:02:09 2017 13 // Update Count : 936 14 14 // 15 15 … … 19 19 #include <algorithm> 20 20 #include <cassert> 21 #include <strings.h> // ffs 21 22 22 23 #include "TypeData.h" … … 32 33 33 34 // These must remain in the same order as the corresponding DeclarationNode enumerations. 34 const char * DeclarationNode::storageName[] = { "extern", "static", "auto", "register", "inline", "fortran", "_Noreturn", "_Thread_local", "NoStorageClass" }; 35 const char * DeclarationNode::qualifierName[] = { "const", "restrict", "volatile", "lvalue", "_Atomic", "NoQualifier" }; 36 const char * DeclarationNode::basicTypeName[] = { "void", "_Bool", "char", "int", "float", "double", "long double", "NoBasicType" }; 37 const char * DeclarationNode::complexTypeName[] = { "_Complex", "_Imaginary", "NoComplexType" }; 38 const char * DeclarationNode::signednessName[] = { "signed", "unsigned", "NoSignedness" }; 39 const char * DeclarationNode::lengthName[] = { "short", "long", "long long", "NoLength" }; 40 const char * DeclarationNode::aggregateName[] = { "struct", "union", "context" }; 41 const char * DeclarationNode::typeClassName[] = { "otype", "dtype", "ftype" }; 42 const char * DeclarationNode::builtinTypeName[] = { "__builtin_va_list" }; 35 const char * DeclarationNode::storageClassNames[] = { "extern", "static", "auto", "register", "_Thread_local", "NoStorageClassNames" }; 36 const char * DeclarationNode::funcSpecifierNames[] = { "inline", "fortran", "_Noreturn", "NoFunctionSpecifierNames" }; 37 const char * DeclarationNode::typeQualifierNames[] = { "const", "restrict", "volatile", "lvalue", "mutex", "_Atomic", "NoTypeQualifierNames" }; 38 const char * DeclarationNode::basicTypeNames[] = { "void", "_Bool", "char", "int", "float", "double", "long double", "NoBasicTypeNames" }; 39 const char * DeclarationNode::complexTypeNames[] = { "_Complex", "_Imaginary", "NoComplexTypeNames" }; 40 const char * DeclarationNode::signednessNames[] = { "signed", "unsigned", "NoSignednessNames" }; 41 const char * DeclarationNode::lengthNames[] = { "short", "long", "long long", "NoLengthNames" }; 42 const char * DeclarationNode::aggregateNames[] = { "struct", "union", "context", "NoAggregateNames" }; 43 const char * DeclarationNode::typeClassNames[] = { "otype", "dtype", "ftype", "NoTypeClassNames" }; 44 const char * DeclarationNode::builtinTypeNames[] = { "__builtin_va_list", "NoBuiltinTypeNames" }; 43 45 44 46 UniqueName DeclarationNode::anonymous( "__anonymous" ); … … 48 50 DeclarationNode::DeclarationNode() : 49 51 type( nullptr ), 50 storageClass( NoStorageClass ),51 52 bitfieldWidth( nullptr ), 52 isInline( false ),53 isNoreturn( false ),54 53 hasEllipsis( false ), 55 54 linkage( ::linkage ), … … 90 89 91 90 newnode->type = maybeClone( type ); 92 newnode->storageClass = storageClass;91 newnode->storageClasses = storageClasses; 93 92 newnode->bitfieldWidth = maybeClone( bitfieldWidth ); 94 newnode->isInline = isInline; 95 newnode->isNoreturn = isNoreturn; 93 newnode->funcSpecs = funcSpecs; 96 94 newnode->enumeratorValue.reset( maybeClone( enumeratorValue.get() ) ); 97 95 newnode->hasEllipsis = hasEllipsis; … … 118 116 } 119 117 118 void DeclarationNode::print_StorageClass( std::ostream & output, StorageClasses storageClasses ) { 119 if ( storageClasses.any() ) { // function specifiers? 120 for ( unsigned int i = 0; i < DeclarationNode::NoStorageClass; i += 1 ) { 121 if ( storageClasses[i] ) { 122 output << DeclarationNode::storageClassNames[i] << ' '; 123 } // if 124 } // for 125 } // if 126 } // print_StorageClass 127 128 void DeclarationNode::print_FuncSpec( std::ostream & output, DeclarationNode::FuncSpecifiers funcSpec ) { 129 if ( funcSpec.any() ) { // function specifiers? 130 for ( unsigned int i = 0; i < DeclarationNode::NoFuncSpecifier; i += 1 ) { 131 if ( funcSpec[i] ) { 132 output << DeclarationNode::funcSpecifierNames[i] << ' '; 133 } // if 134 } // for 135 } // if 136 } // print_FuncSpec 137 120 138 void DeclarationNode::print( std::ostream &os, int indent ) const { 121 139 os << string( indent, ' ' ); … … 130 148 } // if 131 149 132 if ( storageClass != NoStorageClass ) os << DeclarationNode::storageName[storageClass] << ' ';133 if ( isInline ) os << DeclarationNode::storageName[Inline] << ' ';134 if ( isNoreturn ) os << DeclarationNode::storageName[Noreturn] << ' '; 150 print_StorageClass( os, storageClasses ); 151 print_FuncSpec( os, funcSpecs ); 152 135 153 if ( type ) { 136 154 type->print( os, indent ); … … 183 201 } // DeclarationNode::newFunction 184 202 185 DeclarationNode * DeclarationNode::newQualifier( Qualifier q ) { 203 204 DeclarationNode * DeclarationNode::newStorageClass( DeclarationNode::StorageClass sc ) { 205 DeclarationNode * newnode = new DeclarationNode; 206 newnode->storageClasses[ sc ] = true; 207 return newnode; 208 } // DeclarationNode::newStorageClass 209 210 DeclarationNode * DeclarationNode::newFuncSpecifier( DeclarationNode::FuncSpecifier fs ) { 211 DeclarationNode * newnode = new DeclarationNode; 212 newnode->funcSpecs[ fs ] = true; 213 return newnode; 214 } // DeclarationNode::newFuncSpecifier 215 216 DeclarationNode * DeclarationNode::newTypeQualifier( TypeQualifier tq ) { 186 217 DeclarationNode * newnode = new DeclarationNode; 187 218 newnode->type = new TypeData(); 188 newnode->type-> qualifiers[ q ] = 1;219 newnode->type->typeQualifiers[ tq ] = true; 189 220 return newnode; 190 221 } // DeclarationNode::newQualifier 222 223 DeclarationNode * DeclarationNode::newBasicType( BasicType bt ) { 224 DeclarationNode * newnode = new DeclarationNode; 225 newnode->type = new TypeData( TypeData::Basic ); 226 newnode->type->basictype = bt; 227 return newnode; 228 } // DeclarationNode::newBasicType 229 230 DeclarationNode * DeclarationNode::newComplexType( ComplexType ct ) { 231 DeclarationNode * newnode = new DeclarationNode; 232 newnode->type = new TypeData( TypeData::Basic ); 233 newnode->type->complextype = ct; 234 return newnode; 235 } // DeclarationNode::newComplexType 236 237 DeclarationNode * DeclarationNode::newSignedNess( Signedness sn ) { 238 DeclarationNode * newnode = new DeclarationNode; 239 newnode->type = new TypeData( TypeData::Basic ); 240 newnode->type->signedness = sn; 241 return newnode; 242 } // DeclarationNode::newSignedNess 243 244 DeclarationNode * DeclarationNode::newLength( Length lnth ) { 245 DeclarationNode * newnode = new DeclarationNode; 246 newnode->type = new TypeData( TypeData::Basic ); 247 newnode->type->length = lnth; 248 return newnode; 249 } // DeclarationNode::newLength 191 250 192 251 DeclarationNode * DeclarationNode::newForall( DeclarationNode * forall ) { … … 196 255 return newnode; 197 256 } // DeclarationNode::newForall 198 199 DeclarationNode * DeclarationNode::newStorageClass( DeclarationNode::StorageClass sc ) {200 DeclarationNode * newnode = new DeclarationNode;201 newnode->storageClass = sc;202 return newnode;203 } // DeclarationNode::newStorageClass204 205 DeclarationNode * DeclarationNode::newBasicType( BasicType bt ) {206 DeclarationNode * newnode = new DeclarationNode;207 newnode->type = new TypeData( TypeData::Basic );208 newnode->type->basictype = bt;209 return newnode;210 } // DeclarationNode::newBasicType211 212 DeclarationNode * DeclarationNode::newComplexType( ComplexType ct ) {213 DeclarationNode * newnode = new DeclarationNode;214 newnode->type = new TypeData( TypeData::Basic );215 newnode->type->complextype = ct;216 return newnode;217 } // DeclarationNode::newComplexType218 219 DeclarationNode * DeclarationNode::newSignedNess( Signedness sn ) {220 DeclarationNode * newnode = new DeclarationNode;221 newnode->type = new TypeData( TypeData::Basic );222 newnode->type->signedness = sn;223 return newnode;224 } // DeclarationNode::newSignedNess225 226 DeclarationNode * DeclarationNode::newLength( Length lnth ) {227 DeclarationNode * newnode = new DeclarationNode;228 newnode->type = new TypeData( TypeData::Basic );229 newnode->type->length = lnth;230 return newnode;231 } // DeclarationNode::newLength232 257 233 258 DeclarationNode * DeclarationNode::newFromTypedef( string * name ) { … … 428 453 429 454 void DeclarationNode::checkQualifiers( const TypeData * src, const TypeData * dst ) { 430 TypeData::Qualifiers qsrc = src->qualifiers, qdst = dst->qualifiers; // optimization455 const TypeData::TypeQualifiers qsrc = src->typeQualifiers, qdst = dst->typeQualifiers; // optimization 431 456 432 457 if ( (qsrc & qdst).any() ) { // common qualifier ? 433 for ( int i = 0; i < NoQualifier; i += 1 ) {// find common qualifiers458 for ( unsigned int i = 0; i < NoTypeQualifier; i += 1 ) { // find common qualifiers 434 459 if ( qsrc[i] && qdst[i] ) { 435 appendError( error, string( "duplicate " ) + DeclarationNode:: qualifierName[i] );460 appendError( error, string( "duplicate " ) + DeclarationNode::typeQualifierNames[i] ); 436 461 } // if 437 462 } // for 438 } // if463 } // for 439 464 } // DeclarationNode::checkQualifiers 440 465 441 void DeclarationNode::checkStorageClasses( DeclarationNode * q ) { 442 if ( storageClass != NoStorageClass && q->storageClass != NoStorageClass ) { 443 if ( storageClass == q->storageClass ) { // duplicate qualifier 444 appendError( error, string( "duplicate " ) + storageName[ storageClass ] ); 445 } else { // only one storage class 446 appendError( error, string( "conflicting " ) + storageName[ storageClass ] + " & " + storageName[ q->storageClass ] ); 447 q->storageClass = storageClass; // FIX ERROR, prevent assertions from triggering 448 } // if 449 } // if 450 appendError( error, q->error ); 451 } // DeclarationNode::checkStorageClasses 452 453 DeclarationNode * DeclarationNode::copyStorageClasses( DeclarationNode * q ) { 454 isInline = isInline || q->isInline; 455 isNoreturn = isNoreturn || q->isNoreturn; 456 // do not overwrite an existing value with NoStorageClass 457 if ( q->storageClass != NoStorageClass ) { 458 assert( storageClass == NoStorageClass || storageClass == q->storageClass ); 459 storageClass = q->storageClass; 460 } // if 466 void DeclarationNode::checkSpecifiers( DeclarationNode * src ) { 467 if ( (funcSpecs & src->funcSpecs).any() ) { // common specifier ? 468 for ( unsigned int i = 0; i < NoFuncSpecifier; i += 1 ) { // find common specifier 469 if ( funcSpecs[i] && src->funcSpecs[i] ) { 470 appendError( error, string( "duplicate " ) + DeclarationNode::funcSpecifierNames[i] ); 471 } // if 472 } // for 473 } // if 474 475 if ( storageClasses != 0 && src->storageClasses != 0 ) { // any reason to check ? 476 if ( (storageClasses & src->storageClasses).any() ) { // duplicates ? 477 for ( unsigned int i = 0; i < NoStorageClass; i += 1 ) { // find duplicates 478 if ( storageClasses[i] && src->storageClasses[i] ) { 479 appendError( error, string( "duplicate " ) + storageClassNames[i] ); 480 } // if 481 } // for 482 // src is the new item being added and has a single bit 483 } else if ( ! src->storageClasses[ Threadlocal ] ) { // conflict ? 484 appendError( error, string( "conflicting " ) + storageClassNames[ffs( storageClasses.to_ulong() ) - 1] + 485 " & " + storageClassNames[ffs( src->storageClasses.to_ulong() ) - 1] ); 486 src->storageClasses.reset(); // FIX to preserve invariant of one basic storage specifier 487 } // if 488 } // if 489 490 appendError( error, src->error ); 491 } // DeclarationNode::checkSpecifiers 492 493 DeclarationNode * DeclarationNode::copySpecifiers( DeclarationNode * q ) { 494 funcSpecs = funcSpecs | q->funcSpecs; 495 storageClasses = storageClasses | q->storageClasses; 461 496 462 497 for ( Attribute *attr: reverseIterate( q->attributes ) ) { … … 464 499 } // for 465 500 return this; 466 } // DeclarationNode::copyS torageClasses501 } // DeclarationNode::copySpecifiers 467 502 468 503 static void addQualifiersToType( TypeData *&src, TypeData * dst ) { … … 481 516 src = nullptr; 482 517 } else { 483 dst-> qualifiers |= src->qualifiers;518 dst->typeQualifiers |= src->typeQualifiers; 484 519 } // if 485 520 } // addQualifiersToType … … 488 523 if ( ! q ) { delete q; return this; } 489 524 490 checkS torageClasses( q );491 copyS torageClasses( q );525 checkSpecifiers( q ); 526 copySpecifiers( q ); 492 527 493 528 if ( ! q->type ) { … … 518 553 } // if 519 554 520 checkQualifiers( q->type,type );555 checkQualifiers( type, q->type ); 521 556 addQualifiersToType( q->type, type ); 522 557 … … 539 574 switch ( dst->kind ) { 540 575 case TypeData::Unknown: 541 src-> qualifiers |= dst->qualifiers;576 src->typeQualifiers |= dst->typeQualifiers; 542 577 dst = src; 543 578 src = nullptr; 544 579 break; 545 580 case TypeData::Basic: 546 dst-> qualifiers |= src->qualifiers;581 dst->typeQualifiers |= src->typeQualifiers; 547 582 if ( src->kind != TypeData::Unknown ) { 548 583 assert( src->kind == TypeData::Basic ); … … 551 586 dst->basictype = src->basictype; 552 587 } else if ( src->basictype != DeclarationNode::NoBasicType ) 553 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::basicTypeName [ src->basictype ] + " in type: ", src );588 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::basicTypeNames[ src->basictype ] + " in type: ", src ); 554 589 555 590 if ( dst->complextype == DeclarationNode::NoComplexType ) { 556 591 dst->complextype = src->complextype; 557 592 } else if ( src->complextype != DeclarationNode::NoComplexType ) 558 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::complexTypeName [ src->complextype ] + " in type: ", src );593 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::complexTypeNames[ src->complextype ] + " in type: ", src ); 559 594 560 595 if ( dst->signedness == DeclarationNode::NoSignedness ) { 561 596 dst->signedness = src->signedness; 562 597 } else if ( src->signedness != DeclarationNode::NoSignedness ) 563 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::signednessName [ src->signedness ] + " in type: ", src );598 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::signednessNames[ src->signedness ] + " in type: ", src ); 564 599 565 600 if ( dst->length == DeclarationNode::NoLength ) { … … 568 603 dst->length = DeclarationNode::LongLong; 569 604 } else if ( src->length != DeclarationNode::NoLength ) 570 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::lengthName [ src->length ] + " in type: ", src );605 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::lengthNames[ src->length ] + " in type: ", src ); 571 606 } // if 572 607 break; … … 580 615 dst->base->aggInst.params = maybeClone( src->aggregate.actuals ); 581 616 } // if 582 dst->base-> qualifiers |= src->qualifiers;617 dst->base->typeQualifiers |= src->typeQualifiers; 583 618 src = nullptr; 584 619 break; … … 599 634 DeclarationNode * DeclarationNode::addType( DeclarationNode * o ) { 600 635 if ( o ) { 601 checkS torageClasses( o );602 copyS torageClasses( o );636 checkSpecifiers( o ); 637 copySpecifiers( o ); 603 638 if ( o->type ) { 604 639 if ( ! type ) { … … 612 647 type->aggInst.hoistType = o->type->enumeration.body; 613 648 } // if 614 type-> qualifiers |= o->type->qualifiers;649 type->typeQualifiers |= o->type->typeQualifiers; 615 650 } else { 616 651 type = o->type; … … 768 803 p->type->base->aggInst.params = maybeClone( type->aggregate.actuals ); 769 804 } // if 770 p->type->base-> qualifiers |= type->qualifiers;805 p->type->base->typeQualifiers |= type->typeQualifiers; 771 806 break; 772 807 … … 805 840 lastArray->base->aggInst.params = maybeClone( type->aggregate.actuals ); 806 841 } // if 807 lastArray->base-> qualifiers |= type->qualifiers;842 lastArray->base->typeQualifiers |= type->typeQualifiers; 808 843 break; 809 844 default: … … 854 889 DeclarationNode * newnode = new DeclarationNode; 855 890 newnode->type = maybeClone( type ); 856 assert( storageClass == NoStorageClass ); 857 newnode->copyStorageClasses( this ); 891 newnode->copySpecifiers( this ); 858 892 assert( newName ); 859 893 newnode->name = newName; … … 864 898 if ( ! o ) return nullptr; 865 899 866 o->copyS torageClasses( this );900 o->copySpecifiers( this ); 867 901 if ( type ) { 868 902 TypeData * srcType = type; … … 956 990 } else if ( StructDecl * agg = dynamic_cast< StructDecl * >( decl ) ) { 957 991 StructInstType * inst = new StructInstType( Type::Qualifiers(), agg->get_name() ); 958 auto obj = new ObjectDecl( "", DeclarationNode:: NoStorageClass, linkage, nullptr, inst, nullptr );992 auto obj = new ObjectDecl( "", DeclarationNode::StorageClasses(), linkage, nullptr, inst, nullptr ); 959 993 obj->location = cur->location; 960 994 * out++ = obj; … … 962 996 } else if ( UnionDecl * agg = dynamic_cast< UnionDecl * >( decl ) ) { 963 997 UnionInstType * inst = new UnionInstType( Type::Qualifiers(), agg->get_name() ); 964 auto obj = new ObjectDecl( "", DeclarationNode:: NoStorageClass, linkage, nullptr, inst, nullptr );998 auto obj = new ObjectDecl( "", DeclarationNode::StorageClasses(), linkage, nullptr, inst, nullptr ); 965 999 obj->location = cur->location; 966 1000 * out++ = obj; … … 1005 1039 } // if 1006 1040 1007 // if ( variable.name ) {1008 1041 if ( variable.tyClass != NoTypeClass ) { 1009 1042 static const TypeDecl::Kind kindMap[] = { TypeDecl::Any, TypeDecl::Dtype, TypeDecl::Ftype, TypeDecl::Ttype }; 1010 1043 assertf( sizeof(kindMap)/sizeof(kindMap[0] == NoTypeClass-1), "DeclarationNode::build: kindMap is out of sync." ); 1011 1044 assertf( variable.tyClass < sizeof(kindMap)/sizeof(kindMap[0]), "Variable's tyClass is out of bounds." ); 1012 // TypeDecl * ret = new TypeDecl( *variable.name, DeclarationNode::NoStorageClass, nullptr, kindMap[ variable.tyClass ] ); 1013 TypeDecl * ret = new TypeDecl( *name, DeclarationNode::NoStorageClass, nullptr, kindMap[ variable.tyClass ] ); 1045 TypeDecl * ret = new TypeDecl( *name, DeclarationNode::StorageClasses(), nullptr, kindMap[ variable.tyClass ] ); 1014 1046 buildList( variable.assertions, ret->get_assertions() ); 1015 1047 return ret; … … 1017 1049 1018 1050 if ( type ) { 1019 return buildDecl( type, name ? *name : string( "" ), storageClass, maybeBuild< Expression >( bitfieldWidth ), isInline, isNoreturn, linkage, asmName, maybeBuild< Initializer >(initializer), attributes )->set_extension( extension ); 1020 } // if 1021 1022 if ( ! isInline && ! isNoreturn ) { 1023 assertf( name, "ObjectDecl are assumed to have names\n" ); 1024 return (new ObjectDecl( *name, storageClass, linkage, maybeBuild< Expression >( bitfieldWidth ), nullptr, maybeBuild< Initializer >( initializer ) ))->set_asmName( asmName )->set_extension( extension ); 1025 } // if 1026 1027 throw SemanticError( "invalid function specifier ", this ); 1051 // Function specifiers can only appear on a function definition/declaration. 1052 // 1053 // inline _Noreturn int f(); // allowed 1054 // inline _Noreturn int g( int i ); // allowed 1055 // inline _Noreturn int i; // disallowed 1056 if ( type->kind != TypeData::Function && funcSpecs.any() ) { 1057 throw SemanticError( "invalid function specifier for ", this ); 1058 } // if 1059 return buildDecl( type, name ? *name : string( "" ), storageClasses, maybeBuild< Expression >( bitfieldWidth ), funcSpecs, linkage, asmName, maybeBuild< Initializer >(initializer), attributes )->set_extension( extension ); 1060 } // if 1061 1062 // SUE's cannot have function specifiers, either 1063 // 1064 // inlne _Noreturn struct S { ... }; // disallowed 1065 // inlne _Noreturn enum E { ... }; // disallowed 1066 if ( funcSpecs.any() ) { 1067 throw SemanticError( "invalid function specifier for ", this ); 1068 } // if 1069 assertf( name, "ObjectDecl must a have name\n" ); 1070 return (new ObjectDecl( *name, storageClasses, linkage, maybeBuild< Expression >( bitfieldWidth ), nullptr, maybeBuild< Initializer >( initializer ) ))->set_asmName( asmName )->set_extension( extension ); 1028 1071 } 1029 1072 … … 1032 1075 1033 1076 if ( attr.expr ) { 1034 // return new AttrType( buildQualifiers( type ), *attr.name, attr.expr->build() );1035 1077 return new AttrType( buildQualifiers( type ), *name, attr.expr->build(), attributes ); 1036 1078 } else if ( attr.type ) { 1037 // return new AttrType( buildQualifiers( type ), *attr.name, attr.type->buildType() );1038 1079 return new AttrType( buildQualifiers( type ), *name, attr.type->buildType(), attributes ); 1039 1080 } // if
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