ASTContext.cpp revision 44b4321feab46299d3f5cfd404680884752a0fcf
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 1549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 16980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 17e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 18e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/RecordLayout.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 2085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 217192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Serialize.h" 227192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Deserialize.h" 2385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3061710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 32e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 33e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar unsigned size_reserve) : 34bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson CFConstantStringTypeDecl(0), ObjCFastEnumerationStateTypeDecl(0), 35bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson SourceMgr(SM), LangOpts(LOpts), Target(t), 362e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor Idents(idents), Selectors(sels) 37e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar{ 38e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 39e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar BuiltinInfo.InitializeBuiltins(idents, Target); 41e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 42e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 43e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 474b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 50b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 51b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumBuiltin = 0, NumPointer = 0, NumArray = 0, NumFunctionP = 0; 58248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar unsigned NumVector = 0, NumComplex = 0, NumBlockPointer = 0; 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumFunctionNP = 0, NumTypeName = 0, NumTagged = 0, NumReference = 0; 605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumTagStruct = 0, NumTagUnion = 0, NumTagEnum = 0, NumTagClass = 0; 62a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCInterfaces = 0, NumObjCQualifiedInterfaces = 0; 63a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCQualifiedIds = 0; 646cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff unsigned NumTypeOfTypes = 0, NumTypeOfExprs = 0; 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isa<BuiltinType>(T)) 695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumBuiltin; 705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<PointerType>(T)) 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumPointer; 72248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar else if (isa<BlockPointerType>(T)) 73248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar ++NumBlockPointer; 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ReferenceType>(T)) 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumReference; 766d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<ComplexType>(T)) 776d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumComplex; 785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ArrayType>(T)) 795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumArray; 806d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<VectorType>(T)) 816d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumVector; 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeNoProto>(T)) 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionNP; 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeProto>(T)) 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionP; 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<TypedefType>(T)) 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTypeName; 885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (TagType *TT = dyn_cast<TagType>(T)) { 895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTagged; 9039ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis switch (TT->getDecl()->getTagKind()) { 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown tagged type!"); 9239ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_struct: ++NumTagStruct; break; 9339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_union: ++NumTagUnion; break; 9439ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_class: ++NumTagClass; break; 9539ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_enum: ++NumTagEnum; break; 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 97a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isa<ObjCInterfaceType>(T)) 98a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCInterfaces; 99a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedInterfaceType>(T)) 100a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedInterfaces; 101a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedIdType>(T)) 102a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedIds; 1036cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfType>(T)) 1046cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfTypes; 1056cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfExpr>(T)) 1066cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfExprs; 1073f128ad2691d299b96663da85a9e069c4081ea7cSteve Naroff else { 108beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner QualType(T, 0).dump(); 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(0 && "Unknown type!"); 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d builtin types\n", NumBuiltin); 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d pointer types\n", NumPointer); 115248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar fprintf(stderr, " %d block pointer types\n", NumBlockPointer); 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d reference types\n", NumReference); 1176d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d complex types\n", NumComplex); 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d array types\n", NumArray); 1196d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d vector types\n", NumVector); 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with proto\n", NumFunctionP); 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with no proto\n", NumFunctionNP); 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d typename (typedef) types\n", NumTypeName); 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d tagged types\n", NumTagged); 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d struct types\n", NumTagStruct); 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d union types\n", NumTagUnion); 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d class types\n", NumTagClass); 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d enum types\n", NumTagEnum); 128a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek fprintf(stderr, " %d interface types\n", NumObjCInterfaces); 129beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner fprintf(stderr, " %d protocol qualified interface types\n", 130a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedInterfaces); 131c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian fprintf(stderr, " %d protocol qualified id types\n", 132a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedIds); 1336cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof types\n", NumTypeOfTypes); 1346cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof exprs\n", NumTypeOfExprs); 1356cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "Total bytes = %d\n", int(NumBuiltin*sizeof(BuiltinType)+ 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumPointer*sizeof(PointerType)+NumArray*sizeof(ArrayType)+ 1386d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner NumComplex*sizeof(ComplexType)+NumVector*sizeof(VectorType)+ 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionP*sizeof(FunctionTypeProto)+ 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionNP*sizeof(FunctionTypeNoProto)+ 1416cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeName*sizeof(TypedefType)+NumTagged*sizeof(TagType)+ 1426cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeOfTypes*sizeof(TypeOfType)+NumTypeOfExprs*sizeof(TypeOfExpr))); 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back((R = QualType(new BuiltinType(K),0)).getTypePtr()); 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 15998be4943e8dc4f3905629a7102668960873cf863Chris Lattner if (Target.isCharSigned()) 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 18164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 18264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // C++ 3.9.1p5 18364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis InitBuiltinType(WCharTy, BuiltinType::WChar); 18464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1858e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 186898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 187898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 188898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 189898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 190898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 191898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 192898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 193898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 1948e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 1998e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2007e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 201a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 2027e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 203a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 2048baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 2058baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 206a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 20733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 20833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 20933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 212464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 213464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 214464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 215a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 216b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 217b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 218b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 219b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 220b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 221b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 222b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 223b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 224b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 225b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 226b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 227b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 228b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 229b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 230a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 231a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 232d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 2331d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 234f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner T = getCanonicalType(T); 2359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner uint64_t Width; 236d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner unsigned Align; 237a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 238030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::TypeName: assert(0 && "Not a canonical type!"); 2395d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 2405d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 241692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: 242b1c2df99ba67ec6c29ac7dceaa4eb2c8cda4a017Chris Lattner assert(0 && "Incomplete types have no size!"); 243fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 244fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff assert(0 && "VLAs not implemented yet!"); 245898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor case Type::DependentSizedArray: 246898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert(0 && "Dependently-sized arrays don't have a known size"); 247fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 2481d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 249030d8846c7e520330007087e949f621989876e3aChris Lattner 25098be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 2519e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 252030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 253030d8846c7e520330007087e949f621989876e3aChris Lattner break; 2545c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 255213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 256030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 257030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 25898be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 2599e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 2604bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // FIXME: This isn't right for unusual vectors 2614bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 262030d8846c7e520330007087e949f621989876e3aChris Lattner break; 263030d8846c7e520330007087e949f621989876e3aChris Lattner } 2645d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 2659e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 266a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 267692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 268d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 269d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 2706f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 2719e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 2729e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 2736f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 274692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 275692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 276692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 2776f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 2789e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 2799e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 2806f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 28164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 28264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 28364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 28464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 285692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 2866f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 2879e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 2889e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 2896f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 290692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 2916f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 2929e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 2939e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 2946f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 295692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 2966f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 2979e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 2989e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 2996f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 300692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 3016f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 3029e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 3039e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 3046f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3056f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 3069e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 3079e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 3086f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3096f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 3105426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 3115426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 3126f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3136f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 3149e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 3159e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 3166f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 317a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 318bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 319ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb case Type::ASQual: 32098be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 32198be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 32298be4943e8dc4f3905629a7102668960873cf863Chris Lattner return getTypeInfo(QualType(cast<ASQualType>(T)->getBaseType(), 0)); 323a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 3245426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 325f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 3266f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 327485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 328485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 329485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 330485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 331485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 332485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 333f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 334f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 3355426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 336f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 337f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 338f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 339a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner case Type::Reference: 3407ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 3415d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 3426f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 3436f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 344bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 3455d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 3465d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 3475d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 3485d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 3495d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 35098be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 3519e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 3525d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 3535d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 3545d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 35544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 3561d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 35744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 35844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 35944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 36044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 36144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 3627176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case Type::Tagged: { 3631d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 3641d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 3651d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 3668389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 3678389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 3688389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 3698389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 3708389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 3711d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 3727176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 3737176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 3741d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 3757176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 3767176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 3777176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 378dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 379a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 3807176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 381d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 382464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 3839e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 384a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 385a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 3868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 3878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 3883b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 3898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 3903b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 3918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 3928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 3938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 3943b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 3953b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 3963b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 3973b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 3983b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 3998b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4008b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 4018b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 4028b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 40332442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar FieldSize = 40432442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar BitWidthExpr->getIntegerConstantExprValue(Context).getZExtValue(); 4058b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4068b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 4078b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 4088b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 4098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4103b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 4113b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 4123b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 4133b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 4143b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 4158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 4163b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 4173b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 4188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 4198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 4208b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 4228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 4238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 4248b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 4258b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4268b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 4278b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 4288b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 4298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4308389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 4318389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 4328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 4338b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 4348b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 4358b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 436c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 4378b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 4388b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4398b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 4408b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 4418b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 4428b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 4438b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4448b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4453b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 4463b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 4473b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 4483b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 4493b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 4503b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 4513b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 4523b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 4533b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 4548b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 4558b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 4568b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4578b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 4588b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 4598b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4608b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4618b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 4628b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 4638b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4648b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 4658b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 4668b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 4678b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4688b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 4698b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4708b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4718b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 4728b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 4738b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 4748b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 47544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 47661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// getASTObjcInterfaceLayout - Get or compute information about the layout of 47761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// the specified Objective C, which indicates its size and ivar 47844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// position information. 47944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 48044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang PatelASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 48144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 48244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout *&Entry = ASTObjCInterfaces[D]; 48344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (Entry) return *Entry; 48444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 48544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 48644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 4876a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 4886a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned FieldCount = D->ivar_size(); 4896a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 4906a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel FieldCount++; 4916a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 4926a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 4936a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel uint64_t Size = SL.getSize(); 4946a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(Size, Alignment); 4956a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 49661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner // Super class is at the beginning of the layout. 49761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner NewEntry->SetFieldOffset(0, 0); 4986a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 4996a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(); 5006a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 5016a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 50244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Entry = NewEntry; 50344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 5043b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 5053b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 5063b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 50744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 50844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 50944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 51044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 51144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 51244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 51344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 51444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 51544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 51644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 5173b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar NewEntry->LayoutField(Ivar, i++, false, StructPacking, *this); 51844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 51944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 52044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 52144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 52244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 52344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 52444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 52544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 52688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 527464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 528464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 52998be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 5304b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 5314b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 5324bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 533464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 53488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 535464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 5364bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 53788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 53888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 53988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 540464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 5414bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 54244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->InitializeLayout(std::distance(D->field_begin(), D->field_end())); 54339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 544464175bba1318bef7905122e9fda20cff926df78Chris Lattner 5453b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 5463b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 5473b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 5483b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 5494bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 5508b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 5518b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 5524bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5534bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 5544bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 55544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 55644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (RecordDecl::field_iterator Field = D->field_begin(), 55744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldEnd = D->field_end(); 55844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 55944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 5604bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5614bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 5624bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 5638b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 5645d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 565464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 566464175bba1318bef7905122e9fda20cff926df78Chris Lattner 567a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 568a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 569a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 570a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 571ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher LambQualType ASTContext::getASQualType(QualType T, unsigned AddressSpace) { 572f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 573f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 574f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 575f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 576f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Type's cannot have multiple ASQuals, therefore we know we only have to deal 577f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // with CVR qualifiers from here on out. 578f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(CanT.getAddressSpace() == 0 && 579f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner "Type is already address space qualified"); 580f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 581f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Check if we've already instantiated an address space qual'd type of this 582f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // type. 583ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 584f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType::Profile(ID, T.getTypePtr(), AddressSpace); 585ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 586ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (ASQualType *ASQy = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 587ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb return QualType(ASQy, 0); 588ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 589ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 590ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 591ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 592ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (!T->isCanonical()) { 593f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getASQualType(CanT, AddressSpace); 594ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 595ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // Get the new insert position for the node we care about. 596ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualType *NewIP = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos); 597f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 598ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 599f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType *New = new ASQualType(T.getTypePtr(), Canonical, AddressSpace); 600ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualTypes.InsertNode(New, InsertPos); 601ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 602f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return QualType(New, T.getCVRQualifiers()); 603ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 604ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 605a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 6075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 6135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 6165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 6175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 6195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 622f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 626f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *New = new ComplexType(T, Canonical); 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 6365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 6425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 6455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 6465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 6485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 651f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 6525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 655f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *New = new PointerType(T, Canonical); 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6635618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 6645618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 6655618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 666296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 667296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 6685618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 6695618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 6705618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 6715618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6725618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 6735618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 6745618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 6755618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 6765618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 677296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 6785618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 6795618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 6805618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 6815618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 6825618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6835618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 6845618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 6855618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 686f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 6875618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 6885618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *New = new BlockPointerType(T, Canonical); 6895618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 6905618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 6915618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 6925618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 6935618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getReferenceType - Return the uniqued reference to the type for a reference 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to the specified type. 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getReferenceType(QualType T) { 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 7015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ReferenceType *RT = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 7045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 7085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 710f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getReferenceType(getCanonicalType(T)); 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *NewIP = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 714f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *New = new ReferenceType(T, Canonical); 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceTypes.InsertNode(New, InsertPos); 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 723fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 724fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 725fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 726c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 727c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 728c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 730fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType::Profile(ID, EltTy, ArySize); 7315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7337192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 7347192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 741f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 742c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7447192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 7457192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 746f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 749c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ConstantArrayType *New = new ConstantArrayType(EltTy, Canonical, ArySize, 750c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 7517192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 756bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 757bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 758c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 759c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 760c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 761c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 762c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 763c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 764c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayType *New = new VariableArrayType(EltTy, QualType(), NumElts, 765c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 766c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 767c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 768c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 769c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 770c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 771c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 772898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 773898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 774898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 775898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 776898574e7496ba8fd76290079d3a9d06954992734Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, Expr *NumElts, 777898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 778898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor unsigned EltTypeQuals) { 779898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 780898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 781898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 782898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 783898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 784898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 785898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayType *New 786898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = new DependentSizedArrayType(EltTy, QualType(), NumElts, 787898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ASM, EltTypeQuals); 788898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 789898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 790898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 791898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 792898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 793898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 794c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 795c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 796c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 797c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 798c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType::Profile(ID, EltTy); 799c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 800c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 801c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 802c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 803c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 804c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 805c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 806c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 807c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 808c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 809c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 810f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 8112bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 812c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 813c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 814c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 815c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 816f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8172bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 818c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 819c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *New = new IncompleteArrayType(EltTy, Canonical, 820c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 821c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 822c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 823c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 824c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 825fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 826fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 82773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 82873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 82973322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 832f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 83373322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 8345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 83773322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 8435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 846f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 850f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *New = new VectorType(vecType, NumElts, Canonical); 8535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 858213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 85973322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 860213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 86173322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 86273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 863f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 864213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 86573322924127c873c13101b705dd823f5539ffa5fSteve Naroff 86673322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 86773322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 868213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 86973322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 87073322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 87173322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 87273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 87373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 87473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 87573322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 87673322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 877213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 87873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 87973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 88073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 881f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 88273322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 883213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman ExtVectorType *New = new ExtVectorType(vecType, NumElts, Canonical); 88473322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 88573322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 88673322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 88773322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 88873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionTypeNoProto(QualType ResultTy) { 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto::Profile(ID, ResultTy); 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeNoProto *FT = 8995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos)) 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 904f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionTypeNoProto(getCanonicalType(ResultTy)); 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *NewIP = 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos); 909f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *New = new FunctionTypeNoProto(ResultTy, Canonical); 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 91456cd7e3848c2d59ca2ec3b72d0834192edf0bcdfEli Friedman FunctionTypeNoProtos.InsertNode(New, InsertPos); 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 92061710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 921971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 922971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned TypeQuals) { 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 926971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis FunctionTypeProto::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 927971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals); 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FTP = 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos)) 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 9385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 9445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 946f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 948f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 9507fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis isVariadic, TypeQuals); 9515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *NewIP = 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos); 955f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FunctionTypeProto objects are not allocated with new because they have a 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // variable size array (for parameter types) at the end of them. 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *FTP = 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer (FunctionTypeProto*)malloc(sizeof(FunctionTypeProto) + 962942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner NumArgs*sizeof(QualType)); 9635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer new (FTP) FunctionTypeProto(ResultTy, ArgArray, NumArgs, isVariadic, 964971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals, Canonical); 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.InsertNode(FTP, InsertPos); 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9702ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 9712ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 9724b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 9731e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 9742ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9752ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 9761e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 9772ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 97872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor else if (TemplateTypeParmDecl *TP = dyn_cast<TemplateTypeParmDecl>(Decl)) 97972c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor return getTemplateTypeParmType(TP); 9801e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 9812ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 98249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 9831e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(Decl)) { 9844b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek Decl->TypeForDecl = PrevDecl ? PrevDecl->TypeForDecl 9854b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek : new CXXRecordType(CXXRecord); 9864b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 9871e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 9884b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek Decl->TypeForDecl = PrevDecl ? PrevDecl->TypeForDecl 9894b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek : new RecordType(Record); 9904b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 9911e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) 9922ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Decl->TypeForDecl = new EnumType(Enum); 99349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 9942ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 99549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 9964b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 99749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 9982ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 9992ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 100044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor/// setTagDefinition - Used by RecordDecl::completeDefinition and 100144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor/// EnumDecl::completeDefinition to inform about which 100244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor/// RecordDecl/EnumDecl serves as the definition of a particular 100344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor/// struct/union/class/enum. 10044b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenekvoid ASTContext::setTagDefinition(TagDecl* D) { 10054b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert (D->isDefinition()); 100644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor if (!D->TypeForDecl) 100744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor getTypeDeclType(D); 100844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor else 100944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor cast<TagType>(D->TypeForDecl)->decl = D; 10104b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek} 10114b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek 10125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1017f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 1018c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Decl->TypeForDecl = new TypedefType(Type::TypeName, Decl, Canonical); 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 102372c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor/// getTemplateTypeParmType - Return the unique reference to the type 102472c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor/// for the specified template type parameter declaration. 102572c3f314d92d65c050ee1c07b7753623c044d6c7Douglas GregorQualType ASTContext::getTemplateTypeParmType(TemplateTypeParmDecl *Decl) { 102672c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor if (!Decl->TypeForDecl) { 102772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor Decl->TypeForDecl = new TemplateTypeParmType(Decl); 102872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor Types.push_back(Decl->TypeForDecl); 102972c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor } 103072c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor return QualType(Decl->TypeForDecl, 0); 103172c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor} 103272c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 1033a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 10343536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 1035a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 10363536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 10373536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1038a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->TypeForDecl = new ObjCInterfaceType(Type::ObjCInterface, Decl); 10393536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 10403536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 10413536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 10423536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 104388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 104488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 104588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 104688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 10472e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 104888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 104988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 105088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 105188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 105288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 105388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 105488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 105588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 105688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 105788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 105888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 105988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 106088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 106188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 106288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1063065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1064065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1065a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1066a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 106788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 106888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 106988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 10704b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1071b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 10724b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 10734b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1074a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1075a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10764b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 10774b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 10784b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1079a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1080a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek new ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 10814b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1082a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 10834b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 10844b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 10854b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 108688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 108788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 108862f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1089c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 109088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 109188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 109288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1093c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1094a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1095c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1096c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1097a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 109862f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1099c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1100c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1101c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 110262f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdType *QType = new ObjCQualifiedIdType(Protocols, NumProtocols); 1103c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1104a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1105c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1106c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1107c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 11089752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 11099752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 11109752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 11119752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 11129752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 11138d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 1114f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 11159752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfExpr *toe = new TypeOfExpr(tofExpr, Canonical); 11169752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 11179752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1118d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1119d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 11209752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 11219752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 11229752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 11239752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 11249752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1125d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1126f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 11279752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfType *tot = new TypeOfType(tofType, Canonical); 11289752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 11299752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1130d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1131d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1135d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 11362ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1143b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 114655f4b02bc71e7347986c6a5249bef635aac1901aArgyrios Kyrtzidis/// getWCharType - Return the unique type for "wchar_t" (C99 7.17), the 1147fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 1148fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 114955f4b02bc71e7347986c6a5249bef635aac1901aArgyrios KyrtzidisQualType ASTContext::getWCharType() const { 115064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (LangOpts.CPlusPlus) 115164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 115264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1153b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // FIXME: In C, shouldn't WCharTy just be a typedef of the target's 1154b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // wide-character type? 1155b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getWCharType()); 1156fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 1157fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 115864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 115964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 116064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 116164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 116264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 116364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 116464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 116564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 116664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 116764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 116864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 116964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 117064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 117164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 11728b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 11738b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 11748b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1175b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 11768b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 11778b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1178e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1179e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1180e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1181e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 118277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 118377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 118477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 118577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 118677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 118777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 118877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 118977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1190c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1191c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1192c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1193c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1194c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1195c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1196c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1197c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1198c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1199c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1200c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1201c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1202c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1203c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1204c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1205c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1206c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1207c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1208c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1209c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1210c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1211c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1212c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1213898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1214898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1215898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1216898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1217898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1218c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1219c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1220c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1221c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1222c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1223c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1224c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1225c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1226c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1227c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1228c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1229c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1230c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1231c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1232c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1233c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1234c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1235c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1236c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Make sure to look through type qualifiers (like ASQuals) for the negative 1237c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1238c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1239c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1240c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1241c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1242c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1243c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1244c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1245c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1246c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1247c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1248c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1249c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1250c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1251c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1252c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1253c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Rip through ASQualType's and typedefs to get to a concrete type. 1254c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1255c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ASQualType *ASQT = dyn_cast<ASQualType>(Ty)) { 1256c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner AddrSpace = ASQT->getAddressSpace(); 1257c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = ASQT->getBaseType(); 1258c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1259c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1260c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1261c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1262c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1263c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1264c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1265c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1266c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1267c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1268c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1269c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1270c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1271c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1272c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1273c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1274c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1275c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1276c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1277c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1278c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getASQualType(NewEltTy, AddrSpace); 1279c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1280c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1281c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1282c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1283c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1284c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1285c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1286c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1287c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1288c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1289898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1290898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1291898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1292898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1293898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1294898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1295898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1296898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1297c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1298c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1299c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1300c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1301c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 130277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 130377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 130477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1305e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1306e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1307e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1308e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1309e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1310e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1311e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1312c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1313c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1314c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1315c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1316c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1317c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1318e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1319c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1320e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1321e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1322c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1323e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1324e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 13255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 13265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1327a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1328ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 13295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1330a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1331ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1332a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 13335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 13345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 13355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 13365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1339716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1340716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1341716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1342716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 13431361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 13441361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 13451361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 13461361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 13471361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1348716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1349f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1350f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1351f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1352f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1353f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 13541361b11066239ea15764a2a844405352d87296b3Chris Lattner 13551361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 13561361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 13571361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 13581361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 13591361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 13601361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 13657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 13667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 13677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1368a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1369a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1370a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1371a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1372a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1373fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1374a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1375fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1376fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 13775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1379f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1380f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1381f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1382f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1383f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1384f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1385f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1386f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1387f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 13887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 13897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 13907cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 13917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 13927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 13937cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 13947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 13957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 13967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 13977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 13987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 13997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 14007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 14017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 14027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 14037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 14047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 14057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 14067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 14077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1408f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1409f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1410f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 14117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 14127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 14137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 14147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1415f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1416f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 14177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 14185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1419f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1420f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 14215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 14237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 14245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 14267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 14277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 14287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 14297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 14307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 14317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 14327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 14337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 14347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 14357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 14367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 14377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 14387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 14397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 14407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 14417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 14427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 14437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 14447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 14455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 14477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 14487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 14497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 14505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 145171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 145271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 145371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 145471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 14556c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 145639ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1457df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 1458f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 145971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 146071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 146171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1462f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1463f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 146471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1465f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 146671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1467f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 146871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 146944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 147044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 147144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 147244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 147344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 147444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /*Mutable=*/false, /*PrevDecl=*/0); 147544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->addDecl(*this, Field, true); 147644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 147744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 147844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 147971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 148071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 148171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 14828467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1483b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1484bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 1485bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 1486bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 148744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 148844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 148944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 149044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1491bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 1492bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 1493bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 1494bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 1495bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 1496bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 1497bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 1498bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 149944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 150044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 150144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 150244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 150344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 150444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /*Mutable=*/false, /*PrevDecl=*/0); 150544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->addDecl(*this, Field, true); 150644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 1507bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 150844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 1509bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 1510bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1511bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 1512bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 1513bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1514e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1515e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 15162d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1517e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 1518bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 1519bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 152085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 152185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 152285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 152385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1524a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 152533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1526a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 152798be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 152833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 152933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 153033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 153198be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 153233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 153333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 153498be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 153598be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 153633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 153733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1538a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 153933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1540c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 1541e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1542c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1543ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1544a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 154533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 15460d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 154733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 154833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 154933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 155033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 155198be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 155233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 155333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 155433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 155533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 155633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 155733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1558a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1559a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 156033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 156133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 156233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 156333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 156433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 156533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 156633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 156733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 156833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 156933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1570ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 157133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 1572a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier( 1573a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->getParamDecl(i)->getObjCDeclQualifier(), S); 15740d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 157533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1576a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 157733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 157833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 157933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1580c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 1581c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// method declaration. If non-NULL, Container must be either an 1582c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 1583c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 1584c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 1585c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 1586e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1587c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 1588c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 1589c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 1590c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1591c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 1592c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 1593c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 1594c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 1595c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1596c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = CID->propimpl_begin(), e = CID->propimpl_end(); i != e; ++i) { 1597c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1598c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1599c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1600c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1601c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1602c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1603c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1604c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1605c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1606c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 160761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 1608c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1609c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = OID->propimpl_begin(), e = OID->propimpl_end(); i != e; ++i) { 1610c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1611c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1612c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1613c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1614c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1615c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1616c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1617c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1618c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1619c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1620c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1621c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1622c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1623c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 1624c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1625c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 1626c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: GCC uses a generating_property_type_encoding mode during 1627c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // this part. Investigate. 16280d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PD->getType(), S); 1629c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1630c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 1631c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 1632c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1633c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 1634c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 1635c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 1636c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 1637c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1638c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1639c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1640c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 1641c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 1642c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 1643c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 1644c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1645c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 1646c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 1647077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 1648c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1649c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1650c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 1651c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 1652077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 1653c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1654c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1655c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 1656c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 1657c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 165839f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 1659c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1660c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1661c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 1662c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 1663c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 16647d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 1665d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar bool NameFields) const { 166682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 166782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 166882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 166982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 16700d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForTypeImpl(T, S, true, true, NameFields); 167182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 167282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 167382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 167482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 167582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 1676d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar bool NameFields) const { 1677e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 167885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson char encoding; 167985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson switch (BT->getKind()) { 16807176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner default: assert(0 && "Unhandled builtin type kind"); 16817176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 16827176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 168385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_U: 16847176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 16857176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 16867176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 16877176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULong: encoding = 'L'; break; 16887176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 168985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_S: 16907176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 16917176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Short: encoding = 's'; break; 16927176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 16937176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Long: encoding = 'l'; break; 16947176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 16957176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 16967176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 16977176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 169885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 169985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 170085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += encoding; 1701c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1702a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1703c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // Treat id<P...> same as 'id' for encoding purposes. 170482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar return getObjCEncodingForTypeImpl(getObjCIdType(), S, 170582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar ExpandPointedToStructures, 17060d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar ExpandStructures, NameFields); 1707c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1708c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 170985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 1710a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (isObjCIdType(PointeeTy) || PointeeTy->isObjCInterfaceType()) { 1711c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 1712c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 1713a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 17148baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 17158baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1716a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 17178baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 17188baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1719c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 172085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 172185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 172285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 172385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 1724e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 172585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 172685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 172785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 172885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 172985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 173085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 173182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar getObjCEncodingForTypeImpl(PT->getPointeeType(), S, 1732d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 17330d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar NameFields); 1734c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 1735c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 1736c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 173785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 173885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 173985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 174085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 174185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 174285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 174385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 174482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar getObjCEncodingForTypeImpl(AT->getElementType(), S, 17450d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar false, ExpandStructures, NameFields); 174685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 1747c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 1748c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 17496de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 175082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 1751d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 1752502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 1753502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 1754502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 1755502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 1756502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 1757502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 17580d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 17597d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 176044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (RecordDecl::field_iterator Field = RDecl->field_begin(), 176144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldEnd = RDecl->field_end(); 176244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 1763d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar if (NameFields) { 1764d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 176544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 1766d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 1767d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 1768d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 1769d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 177044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor if (const Expr *E = Field->getBitWidth()) { 1771d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // FIXME: Fix constness. 1772d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar ASTContext *Ctx = const_cast<ASTContext*>(this); 1773d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar unsigned N = E->getIntegerConstantExprValue(*Ctx).getZExtValue(); 1774d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // FIXME: Obj-C is losing information about the type size 1775d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // here. Investigate if this is a problem. 1776d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += 'b'; 1777d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += llvm::utostr(N); 1778d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 177944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 178044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NameFields); 1781d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 17827d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 17836de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 1784d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 17855e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 17865e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff S += 'i'; 1787485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 1788485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff S += '^'; // This type string is the same as general pointers. 178985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } else 1790f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 179185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 179285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1793a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 1794ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 1795ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 1796ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 1797ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 1798ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 1799ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 1800ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 1801ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 1802ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 1803ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 1804ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 1805ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 1806ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 1807ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 1808ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 1809b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 1810b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 1811b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 1812b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1813b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 1814b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 1815b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1816a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 18177e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 1818a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 18197e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 18207e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 18217e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 18227e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(ptr && "'id' incorrectly typed"); 18237e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 18247e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(rec && "'id' incorrectly typed"); 18257e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 18267e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 18277e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1828a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 1829b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 1830a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 1831b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1832b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 1833b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 1834b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(ptr && "'SEL' incorrectly typed"); 1835b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 1836b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(rec && "'SEL' incorrectly typed"); 1837b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 1838b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 1839b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1840a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 1841390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 1842a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 1843390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 1844390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 1845a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 18468baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 1847a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 18488baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 18498baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 18508baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 18518baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 18528baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 18538baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 18548baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 18558baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 18568baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1857a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 1858a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 18592198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 18602198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1861a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 18622198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 18632198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1864b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 1865d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 1866d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 1867d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 1868b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 1869b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 1870b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 1871b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 1872b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 1873b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 1874b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 1875b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 1876b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 1877b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 1878b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 1879b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 1880b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 1881b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 1882b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 1883b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1884b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1885b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 1886b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1887b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1888b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 1889b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 1890b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 1891b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 1892b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 1893b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty->isObjCQualifiedIdType()) 1894b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1895b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 18966ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 18976ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 18986ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 18996ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 19006ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 1901b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 1902b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 1903b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1904b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 1905b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 1906b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 1907b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty == getObjCIdType() || Ty == getObjCClassType()) 1908b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1909b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1910b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 1911b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType(); 1912b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 1913b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 19146ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 19156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 19166ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 1917770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 19181c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 1919dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 1920dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 1921dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1922dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 1923dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 1924dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1925dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 1926dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1927dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 1928dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 1929dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1930dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 1931dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 19321c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 1933c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *lbase = lhs->getAsFunctionType(); 1934c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *rbase = rhs->getAsFunctionType(); 1935c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 1936c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 1937c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (lproto && rproto) 1938c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return !mergeTypes(lhs, rhs).isNull(); 1939c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return false; 19401c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 19411c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 19426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 19436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 19446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 19456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 19466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 19476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 194861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 19496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 19506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 19526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 19536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 19546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 19553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 19563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 19576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 19586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 19596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 19606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 19616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 19636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 19646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 19656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 19666ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19676ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 19686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 19696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 19706ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 19716ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 19736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 19746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 19756ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(); 19766ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHSP->qual_end(); 19776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(); 19786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHSP->qual_end(); 19796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 19816ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 19826ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 19836ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 19846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 19856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner while (RHSPI != RHSPE) { 19876ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 19886ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 19896ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (RHSProto != LHSProto) 19906ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner continue; 19916ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Otherwise, the RHS does have this element. 19936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ++LHSPI; 19946ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (LHSPI == LHSPE) 19956ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // All protocols in LHS exist in RHS. 19966ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHSProto = *LHSPI; 19986ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner } 19996ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 20006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 20016ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 20026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 20036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 2004ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 2005ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 2006ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 2007ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 20083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 20093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 20103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 20113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20123d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 20133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 20143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 20153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 20163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 20173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 20183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 20193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 20213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 20223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 202361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 202461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 202561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 202661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 20273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 20293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 20303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 20313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 20333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 20343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 20353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 20373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 20383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 20393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20407fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 20417fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 20427fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 20433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 20443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 20453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 20463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 20473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 20483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 20493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 20503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 205161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 205261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 205361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 205461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 20553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 20573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 20583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 20597fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 20603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 20633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 20643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *proto = lproto ? lproto : rproto; 20663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 20673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 20683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 20693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 20703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 20713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 20723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 20733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 20743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 20753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 20763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 20773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 20783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 20793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 20823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 20833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 20847fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 20857fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 20863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 20893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 20903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionTypeNoProto(retType); 20913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 20923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20933d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 209443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 209543d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 209643d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 209743d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 20983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 20993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 21003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 2101c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 21023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 2103c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 21043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 21063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 21073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 2108f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 21093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 21103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 21113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 21133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers() || 21143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman LHSCan.getAddressSpace() != RHSCan.getAddressSpace()) 21153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 21163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 21183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 2119f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 21201adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 21211adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 21221adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 21231adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 21244c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 21254c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 2126a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 2127a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 2128a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 2129a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 2130a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 2131213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 2132213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 2133213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 2134ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 2135b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 2136b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 2137b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 21383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21394e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 21404e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 2141bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 2142bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 2143bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 2144bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2145bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2146bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2147bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2148bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2149bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2150bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2151bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2152bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2153bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2154bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2155bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 2156bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 2157bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2158bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2159bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2160bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2161bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2162bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2163bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2164bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2165bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2166bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2167bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 21681adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 21691adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 21703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 21713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 21723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 2173bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 21743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 21753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 21763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 2177bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 21781adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 21793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2180ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 21813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21824a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 21831adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 21841adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 21853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 21863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 21873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 21883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 21893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 21903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 219161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 219261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 219361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 219461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 21953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 21963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 2197c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 2198c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 2199c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 2200c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 2201c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 2202c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 2203c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 2204c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 2205c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 2206c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 2207c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 2208c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 2209c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 22101adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 22113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 22123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 22133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 22143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 22153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 22163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 22173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 22183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 22193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 22203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 222161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 222261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 222361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 222461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 22253bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 22263bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 22273bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 22283bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 22293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 22303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 223161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 223261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 223361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 223461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 22353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 22363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 22373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 22383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 22393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 22403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 22413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 22423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 22433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 22443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 22453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 22463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 22473bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 22483bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 224961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 22503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 22511adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 22523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 22533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman case Type::Tagged: 22543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 22553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(LHS) && isObjCClassType(RHS)) return LHS; 22563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCClassType(LHS) && isObjCIdType(RHS)) return LHS; 22573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 22581adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 22593cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 22603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 22613cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 22623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 22633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 226461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 22651adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 22663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Distinct ObjC interfaces are not compatible; see canAssignObjCInterfaces 22673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // for checking assignment/comparison safety 22683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2269bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff case Type::ObjCQualifiedId: 2270bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 2271bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 22721adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 22731adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 22743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2275ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 2276ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 22777192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 22785426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 2279ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 2280ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 2281ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 2282ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 2283ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 2284ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman // At the moment, only bool has padding bits 2285ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 2286ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2287ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2288ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 2289ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 2290ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 2291ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 2292ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 2293ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 2294ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 2295ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 2296ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 2297ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 2298ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 2299ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 2300ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 2301ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 2302ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 2303ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 2304ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 2305ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 2306ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 2307ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 2308ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 2309ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 2310ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2311ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2312ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2313ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 23145426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 23155426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 23165426bf6456a5aeac416a9150de157904d101c819Chris Lattner 23177192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 23187192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 2319e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 23205451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 23215451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 23225451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 23235451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 23247192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 2325fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 2326fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 2327a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 2328a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 232903ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 233003ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 233103ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 2332a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 2333ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 2334ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2335a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 23367192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 23377192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 23380f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 2339e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2340e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 2341e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 2342e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 2343e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2344fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 2345fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 2346fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 2347fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 23480ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2349fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 2350fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 23512e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, 23522e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor size_reserve); 2353fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 235403ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 235503ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 23560ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2357ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 2358ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2359a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 2360fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 2361fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 2362fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 2363