ASTContext.cpp revision bc76dd06eb881c70c9775b74bab8b88cd747f173
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 5428b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->InitializeLayout(D->getNumMembers()); 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. 5554bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman for (unsigned i = 0, e = D->getNumMembers(); i != e; ++i) { 5564bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman const FieldDecl *FD = D->getMember(i); 5573b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar NewEntry->LayoutField(FD, i, IsUnion, StructPacking, *this); 558464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 5594bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5604bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 5614bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 5628b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 5635d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 564464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 565464175bba1318bef7905122e9fda20cff926df78Chris Lattner 566a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 567a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 568a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 569a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 570ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher LambQualType ASTContext::getASQualType(QualType T, unsigned AddressSpace) { 571f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 572f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 573f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 574f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 575f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Type's cannot have multiple ASQuals, therefore we know we only have to deal 576f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // with CVR qualifiers from here on out. 577f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(CanT.getAddressSpace() == 0 && 578f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner "Type is already address space qualified"); 579f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 580f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Check if we've already instantiated an address space qual'd type of this 581f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // type. 582ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 583f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType::Profile(ID, T.getTypePtr(), AddressSpace); 584ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 585ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (ASQualType *ASQy = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 586ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb return QualType(ASQy, 0); 587ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 588ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 589ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 590ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 591ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (!T->isCanonical()) { 592f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getASQualType(CanT, AddressSpace); 593ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 594ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // Get the new insert position for the node we care about. 595ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualType *NewIP = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos); 596f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 597ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 598f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType *New = new ASQualType(T.getTypePtr(), Canonical, AddressSpace); 599ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualTypes.InsertNode(New, InsertPos); 600ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 601f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return QualType(New, T.getCVRQualifiers()); 602ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 603ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 604a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 6075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 6125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 6155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 6165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 6185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 621f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 6225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 625f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *New = new ComplexType(T, Canonical); 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 6355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 6365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 6415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 6445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 6455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 650f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 6515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 654f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 6555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *New = new PointerType(T, Canonical); 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6625618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 6635618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 6645618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 665296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 666296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 6675618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 6685618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 6695618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 6705618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6715618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 6725618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 6735618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 6745618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 6755618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 676296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 6775618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 6785618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 6795618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 6805618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 6815618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6825618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 6835618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 6845618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 685f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 6865618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 6875618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *New = new BlockPointerType(T, Canonical); 6885618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 6895618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 6905618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 6915618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 6925618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getReferenceType - Return the uniqued reference to the type for a reference 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to the specified type. 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getReferenceType(QualType T) { 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 7005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ReferenceType *RT = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 7045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 709f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getReferenceType(getCanonicalType(T)); 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *NewIP = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 713f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *New = new ReferenceType(T, Canonical); 7175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceTypes.InsertNode(New, InsertPos); 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 722fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 723fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 724fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 725c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 726c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 727c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 729fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType::Profile(ID, EltTy, ArySize); 7305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7327192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 7337192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 7345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 740f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 741c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7437192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 7447192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 745f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 748c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ConstantArrayType *New = new ConstantArrayType(EltTy, Canonical, ArySize, 749c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 7507192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 755bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 756bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 757c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 758c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 759c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 760c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 761c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 762c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 763c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayType *New = new VariableArrayType(EltTy, QualType(), NumElts, 764c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 765c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 766c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 767c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 768c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 769c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 770c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 771898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 772898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 773898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 774898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 775898574e7496ba8fd76290079d3a9d06954992734Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, Expr *NumElts, 776898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 777898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor unsigned EltTypeQuals) { 778898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 779898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 780898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 781898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 782898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 783898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 784898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayType *New 785898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = new DependentSizedArrayType(EltTy, QualType(), NumElts, 786898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ASM, EltTypeQuals); 787898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 788898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 789898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 790898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 791898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 792898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 793c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 794c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 795c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 796c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 797c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType::Profile(ID, EltTy); 798c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 799c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 800c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 801c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 802c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 803c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 804c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 805c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 806c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 807c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 808c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 809f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 8102bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 811c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 812c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 813c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 814c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 815f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8162bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 817c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 818c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *New = new IncompleteArrayType(EltTy, Canonical, 819c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 820c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 821c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 822c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 823c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 824fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 825fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 82673322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 82773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 82873322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 8295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 831f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 83273322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 83673322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 8375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 8435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 845f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 849f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *New = new VectorType(vecType, NumElts, Canonical); 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 8535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 857213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 85873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 859213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 86073322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 86173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 862f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 863213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 86473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 86573322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 86673322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 867213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 86873322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 86973322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 87073322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 87173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 87273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 87373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 87473322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 87573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 876213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 87773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 87873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 87973322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 880f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 88173322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 882213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman ExtVectorType *New = new ExtVectorType(vecType, NumElts, Canonical); 88373322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 88473322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 88573322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 88673322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 88773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 8885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionTypeNoProto(QualType ResultTy) { 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto::Profile(ID, ResultTy); 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeNoProto *FT = 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos)) 8995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 903f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionTypeNoProto(getCanonicalType(ResultTy)); 9045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *NewIP = 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos); 908f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *New = new FunctionTypeNoProto(ResultTy, Canonical); 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 91356cd7e3848c2d59ca2ec3b72d0834192edf0bcdfEli Friedman FunctionTypeNoProtos.InsertNode(New, InsertPos); 9145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 91961710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 920971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 921971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned TypeQuals) { 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 925971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis FunctionTypeProto::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 926971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals); 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FTP = 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos)) 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 9385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 9445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 945f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 9465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 947f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 9497fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis isVariadic, TypeQuals); 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *NewIP = 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos); 954f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FunctionTypeProto objects are not allocated with new because they have a 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // variable size array (for parameter types) at the end of them. 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *FTP = 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer (FunctionTypeProto*)malloc(sizeof(FunctionTypeProto) + 961942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner NumArgs*sizeof(QualType)); 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer new (FTP) FunctionTypeProto(ResultTy, ArgArray, NumArgs, isVariadic, 963971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals, Canonical); 9645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.InsertNode(FTP, InsertPos); 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9692ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 9702ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 9714b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 9721e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 9732ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9742ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 9751e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 9762ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 97772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor else if (TemplateTypeParmDecl *TP = dyn_cast<TemplateTypeParmDecl>(Decl)) 97872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor return getTemplateTypeParmType(TP); 9791e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 9802ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 98149aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 9821e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(Decl)) { 9834b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek Decl->TypeForDecl = PrevDecl ? PrevDecl->TypeForDecl 9844b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek : new CXXRecordType(CXXRecord); 9854b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 9861e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 9874b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek Decl->TypeForDecl = PrevDecl ? PrevDecl->TypeForDecl 9884b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek : new RecordType(Record); 9894b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 9901e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) 9912ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Decl->TypeForDecl = new EnumType(Enum); 99249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 9932ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 99449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 9954b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 99649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 9972ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 9982ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 9994b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek/// setTagDefinition - Used by RecordDecl::defineBody to inform ASTContext 10004b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek/// about which RecordDecl serves as the definition of a particular 10014b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek/// struct/union/class. This will eventually be used by enums as well. 10024b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenekvoid ASTContext::setTagDefinition(TagDecl* D) { 10034b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert (D->isDefinition()); 10044b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek cast<TagType>(D->TypeForDecl)->decl = D; 10054b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek} 10064b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1012f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 1013c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Decl->TypeForDecl = new TypedefType(Type::TypeName, Decl, Canonical); 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 101872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor/// getTemplateTypeParmType - Return the unique reference to the type 101972c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor/// for the specified template type parameter declaration. 102072c3f314d92d65c050ee1c07b7753623c044d6c7Douglas GregorQualType ASTContext::getTemplateTypeParmType(TemplateTypeParmDecl *Decl) { 102172c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor if (!Decl->TypeForDecl) { 102272c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor Decl->TypeForDecl = new TemplateTypeParmType(Decl); 102372c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor Types.push_back(Decl->TypeForDecl); 102472c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor } 102572c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor return QualType(Decl->TypeForDecl, 0); 102672c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor} 102772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 1028a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 10293536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 1030a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 10313536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 10323536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1033a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->TypeForDecl = new ObjCInterfaceType(Type::ObjCInterface, Decl); 10343536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 10353536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 10363536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 10373536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 103888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 103988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 104088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 104188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 10422e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 104388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 104488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 104588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 104688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 104788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 104888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 104988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 105088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 105188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 105288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 105388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 105488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 105588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 105688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 105788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1058065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1059065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1060a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1061a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 106288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 106388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 106488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 10654b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1066b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 10674b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 10684b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1069a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1070a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10714b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 10724b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 10734b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1074a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1075a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek new ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 10764b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1077a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 10784b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 10794b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 10804b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 108188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 108288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 108362f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1084c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 108588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 108688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 108788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1088c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1089a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1090c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1091c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1092a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 109362f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1094c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1095c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1096c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 109762f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdType *QType = new ObjCQualifiedIdType(Protocols, NumProtocols); 1098c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1099a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1100c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1101c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1102c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 11039752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 11049752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 11059752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 11069752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 11079752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 11088d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 1109f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 11109752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfExpr *toe = new TypeOfExpr(tofExpr, Canonical); 11119752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 11129752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1113d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1114d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 11159752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 11169752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 11179752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 11189752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 11199752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1120d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1121f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 11229752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfType *tot = new TypeOfType(tofType, Canonical); 11239752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 11249752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1125d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1126d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1130d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 11312ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1138b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 114155f4b02bc71e7347986c6a5249bef635aac1901aArgyrios Kyrtzidis/// getWCharType - Return the unique type for "wchar_t" (C99 7.17), the 1142fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 1143fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 114455f4b02bc71e7347986c6a5249bef635aac1901aArgyrios KyrtzidisQualType ASTContext::getWCharType() const { 114564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (LangOpts.CPlusPlus) 114664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 114764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1148b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // FIXME: In C, shouldn't WCharTy just be a typedef of the target's 1149b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // wide-character type? 1150b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getWCharType()); 1151fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 1152fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 115364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 115464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 115564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 115664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 115764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 115864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 115964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 116064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 116164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 116264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 116364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 116464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 116564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 116664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 11678b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 11688b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 11698b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1170b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 11718b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 11728b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1173e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1174e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1175e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1176e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 117777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 117877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 117977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 118077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 118177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 118277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 118377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 118477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1185c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1186c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1187c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1188c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1189c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1190c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1191c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1192c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1193c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1194c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1195c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1196c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1197c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1198c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1199c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1200c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1201c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1202c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1203c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1204c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1205c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1206c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1207c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1208898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1209898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1210898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1211898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1212898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1213c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1214c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1215c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1216c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1217c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1218c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1219c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1220c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1221c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1222c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1223c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1224c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1225c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1226c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1227c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1228c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1229c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1230c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1231c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Make sure to look through type qualifiers (like ASQuals) for the negative 1232c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1233c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1234c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1235c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1236c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1237c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1238c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1239c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1240c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1241c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1242c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1243c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1244c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1245c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1246c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1247c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1248c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Rip through ASQualType's and typedefs to get to a concrete type. 1249c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1250c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ASQualType *ASQT = dyn_cast<ASQualType>(Ty)) { 1251c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner AddrSpace = ASQT->getAddressSpace(); 1252c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = ASQT->getBaseType(); 1253c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1254c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1255c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1256c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1257c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1258c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1259c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1260c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1261c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1262c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1263c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1264c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1265c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1266c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1267c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1268c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1269c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1270c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1271c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1272c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1273c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getASQualType(NewEltTy, AddrSpace); 1274c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1275c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1276c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1277c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1278c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1279c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1280c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1281c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1282c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1283c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1284898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1285898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1286898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1287898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1288898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1289898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1290898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1291898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1292c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1293c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1294c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1295c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1296c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 129777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 129877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 129977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1300e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1301e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1302e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1303e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1304e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1305e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1306e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1307c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1308c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1309c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1310c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1311c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1312c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1313e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1314c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1315e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1316e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1317c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1318e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1319e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 13205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 13215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1322a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1323ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 13245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1325a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1326ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1327a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 13285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 13295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 13305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 13315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1334716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1335716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1336716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1337716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 13381361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 13391361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 13401361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 13411361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 13421361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1343716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1344f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1345f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1346f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1347f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1348f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 13491361b11066239ea15764a2a844405352d87296b3Chris Lattner 13501361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 13511361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 13521361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 13531361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 13541361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 13551361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 13565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 13607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 13617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 13627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1363a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1364a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1365a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1366a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1367a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1368fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1369a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1370fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1371fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 13725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1374f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1375f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1376f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1377f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1378f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1379f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1380f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1381f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1382f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 13837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 13847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 13857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 13867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 13877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 13887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 13897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 13907cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 13917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 13927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 13937cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 13947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 13957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 13967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 13977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 13987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 13997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 14007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 14017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 14027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1403f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1404f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1405f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 14067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 14077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 14087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 14097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1410f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1411f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 14127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 14135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1414f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1415f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 14165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 14187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 14195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 14217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 14227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 14237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 14247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 14257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 14267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 14277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 14287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 14297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 14307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 14317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 14327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 14337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 14347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 14357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 14367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 14377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 14387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 14397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 14405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 14427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 14437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 14447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 14455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 144671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 144771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 144871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 144971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 14506c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 145139ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1452df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 1453f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 145471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 145571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 145671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1457f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1458f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 145971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1460f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 146171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1462f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 146371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // Create fields 1464f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldDecl *FieldDecls[4]; 146571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 1466f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson for (unsigned i = 0; i < 4; ++i) 1467b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner FieldDecls[i] = FieldDecl::Create(*this, SourceLocation(), 0, 14688e25d8681822d8094bfeb97b2239363552548171Chris Lattner FieldTypes[i]); 146971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 14704b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek CFConstantStringTypeDecl->defineBody(*this, FieldDecls, 4); 147171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 147271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 147371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 14748467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1475b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1476bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 1477bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 1478bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 1479bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 1480bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 1481bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 1482bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 1483bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 1484bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 1485bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 1486bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1487bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson FieldDecl *FieldDecls[4]; 1488bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson for (size_t i = 0; i < 4; ++i) 1489bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson FieldDecls[i] = FieldDecl::Create(*this, SourceLocation(), 0, 1490bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson FieldTypes[i]); 1491bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1492bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson ObjCFastEnumerationStateTypeDecl = 1493bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1494df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("__objcFastEnumerationState")); 1495bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 14964b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek ObjCFastEnumerationStateTypeDecl->defineBody(*this, FieldDecls, 4); 1497bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 1498bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1499bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 1500bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 1501bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1502e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1503e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 15042d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1505e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 1506bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 1507bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 150885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 150985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 151085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 151185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1512a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 151333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1514a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 151598be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 151633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 151733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 151833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 151998be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 152033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 152133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 152298be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 152398be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 152433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 152533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1526a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 152733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1528c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 1529e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1530c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1531ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1532a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 153333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 15340d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 153533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 153633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 153733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 153833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 153998be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 154033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 154133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 154233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 154333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 154433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 154533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1546a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1547a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 154833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 154933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 155033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 155133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 155233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 155333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 155433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 155533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 155633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 155733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1558ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 155933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 1560a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier( 1561a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->getParamDecl(i)->getObjCDeclQualifier(), S); 15620d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 156333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1564a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 156533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 156633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 156733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1568c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 1569c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// method declaration. If non-NULL, Container must be either an 1570c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 1571c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 1572c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 1573c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 1574e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1575c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 1576c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 1577c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 1578c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1579c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 1580c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 1581c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 1582c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 1583c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1584c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = CID->propimpl_begin(), e = CID->propimpl_end(); i != e; ++i) { 1585c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1586c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1587c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1588c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1589c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1590c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1591c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1592c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1593c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1594c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 159561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 1596c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1597c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = OID->propimpl_begin(), e = OID->propimpl_end(); i != e; ++i) { 1598c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1599c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1600c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1601c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1602c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1603c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1604c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1605c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1606c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1607c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1608c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1609c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1610c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1611c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 1612c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1613c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 1614c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: GCC uses a generating_property_type_encoding mode during 1615c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // this part. Investigate. 16160d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PD->getType(), S); 1617c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1618c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 1619c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 1620c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1621c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 1622c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 1623c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 1624c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 1625c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1626c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1627c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1628c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 1629c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 1630c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 1631c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 1632c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1633c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 1634c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 1635077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 1636c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1637c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1638c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 1639c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 1640077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 1641c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1642c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1643c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 1644c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 1645c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 164639f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 1647c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1648c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1649c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 1650c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 1651c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 16527d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 1653d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar bool NameFields) const { 165482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 165582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 165682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 165782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 16580d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForTypeImpl(T, S, true, true, NameFields); 165982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 166082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 166182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 166282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 166382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 1664d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar bool NameFields) const { 1665e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 166685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson char encoding; 166785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson switch (BT->getKind()) { 16687176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner default: assert(0 && "Unhandled builtin type kind"); 16697176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 16707176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 167185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_U: 16727176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 16737176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 16747176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 16757176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULong: encoding = 'L'; break; 16767176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 167785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_S: 16787176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 16797176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Short: encoding = 's'; break; 16807176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 16817176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Long: encoding = 'l'; break; 16827176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 16837176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 16847176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 16857176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 168685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 168785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 168885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += encoding; 1689c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1690a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1691c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // Treat id<P...> same as 'id' for encoding purposes. 169282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar return getObjCEncodingForTypeImpl(getObjCIdType(), S, 169382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar ExpandPointedToStructures, 16940d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar ExpandStructures, NameFields); 1695c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1696c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 169785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 1698a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (isObjCIdType(PointeeTy) || PointeeTy->isObjCInterfaceType()) { 1699c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 1700c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 1701a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 17028baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 17038baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1704a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 17058baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 17068baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1707c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 170885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 170985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 171085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 171185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 1712e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 171385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 171485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 171585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 171685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 171785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 171885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 171982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar getObjCEncodingForTypeImpl(PT->getPointeeType(), S, 1720d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 17210d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar NameFields); 1722c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 1723c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 1724c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 172585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 172685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 172785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 172885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 172985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 173085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 173185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 173282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar getObjCEncodingForTypeImpl(AT->getElementType(), S, 17330d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar false, ExpandStructures, NameFields); 173485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 1735c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 1736c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 17376de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 173882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 1739d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 1740502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 1741502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 1742502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 1743502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 1744502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 1745502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 17460d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 17477d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 17487d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (int i = 0; i < RDecl->getNumMembers(); i++) { 1749d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar FieldDecl *FD = RDecl->getMember(i); 1750d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar if (NameFields) { 1751d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 175239f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += FD->getNameAsString(); 1753d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 1754d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 1755d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 1756d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 1757d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar if (const Expr *E = FD->getBitWidth()) { 1758d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // FIXME: Fix constness. 1759d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar ASTContext *Ctx = const_cast<ASTContext*>(this); 1760d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar unsigned N = E->getIntegerConstantExprValue(*Ctx).getZExtValue(); 1761d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // FIXME: Obj-C is losing information about the type size 1762d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // here. Investigate if this is a problem. 1763d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += 'b'; 1764d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += llvm::utostr(N); 1765d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 17660d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForTypeImpl(FD->getType(), S, false, true, NameFields); 1767d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 17687d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 17696de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 1770d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 17715e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 17725e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff S += 'i'; 1773485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 1774485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff S += '^'; // This type string is the same as general pointers. 177585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } else 1776f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 177785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 177885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1779a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 1780ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 1781ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 1782ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 1783ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 1784ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 1785ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 1786ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 1787ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 1788ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 1789ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 1790ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 1791ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 1792ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 1793ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 1794ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 1795b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 1796b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 1797b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 1798b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1799b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 1800b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 1801b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1802a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 18037e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 1804a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 18057e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 18067e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 18077e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 18087e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(ptr && "'id' incorrectly typed"); 18097e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 18107e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(rec && "'id' incorrectly typed"); 18117e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 18127e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 18137e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1814a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 1815b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 1816a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 1817b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1818b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 1819b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 1820b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(ptr && "'SEL' incorrectly typed"); 1821b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 1822b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(rec && "'SEL' incorrectly typed"); 1823b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 1824b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 1825b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1826a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 1827390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 1828a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 1829390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 1830390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 1831a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 18328baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 1833a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 18348baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 18358baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 18368baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 18378baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 18388baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 18398baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 18408baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 18418baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 18428baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1843a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 1844a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 18452198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 18462198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1847a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 18482198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 18492198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1850b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 1851d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 1852d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 1853d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 1854b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 1855b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 1856b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 1857b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 1858b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 1859b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 1860b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 1861b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 1862b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 1863b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 1864b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 1865b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 1866b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 1867b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 1868b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 1869b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1870b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1871b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 1872b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1873b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1874b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 1875b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 1876b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 1877b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 1878b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 1879b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty->isObjCQualifiedIdType()) 1880b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1881b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 18826ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 18836ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 18846ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 18856ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 18866ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 1887b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 1888b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 1889b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1890b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 1891b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 1892b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 1893b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty == getObjCIdType() || Ty == getObjCClassType()) 1894b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1895b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1896b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 1897b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType(); 1898b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 1899b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 19006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 19016ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 19026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 1903770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 19041c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 1905dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 1906dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 1907dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1908dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 1909dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 1910dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1911dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 1912dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1913dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 1914dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 1915dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1916dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 1917dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 19181c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 1919c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *lbase = lhs->getAsFunctionType(); 1920c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *rbase = rhs->getAsFunctionType(); 1921c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 1922c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 1923c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (lproto && rproto) 1924c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return !mergeTypes(lhs, rhs).isNull(); 1925c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return false; 19261c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 19271c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 19286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 19296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 19306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 19316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 19326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 19336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 193461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 19356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 19366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 19386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 19396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 19406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 19413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 19423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 19436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 19446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 19456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 19466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 19476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 19496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 19506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 19516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 19526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 19546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 19556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 19566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 19576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 19596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 19606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 19616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(); 19626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHSP->qual_end(); 19636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(); 19646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHSP->qual_end(); 19656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19666ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 19676ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 19686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 19696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 19706ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 19716ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner while (RHSPI != RHSPE) { 19736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 19746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 19756ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (RHSProto != LHSProto) 19766ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner continue; 19776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Otherwise, the RHS does have this element. 19796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ++LHSPI; 19806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (LHSPI == LHSPE) 19816ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // All protocols in LHS exist in RHS. 19826ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19836ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHSProto = *LHSPI; 19846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner } 19856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 19876ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 19886ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 19896ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 1990ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 1991ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 1992ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 1993ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 19943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 19953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 19963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 19973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19983d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 19993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 20003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 20013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 20023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 20033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 20043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 20053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 20073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 20083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 200961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 201061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 201161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 201261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 20133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 20153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 20163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 20173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 20193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 20203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 20213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 20233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 20243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 20253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20267fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 20277fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 20287fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 20293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 20303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 20313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 20323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 20333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 20343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 20353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 20363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 203761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 203861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 203961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 204061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 20413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 20433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 20443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 20457fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 20463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 20493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 20503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *proto = lproto ? lproto : rproto; 20523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 20533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 20543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 20553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 20563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 20573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 20583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 20593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 20603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 20613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 20623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 20633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 20643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 20653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 20683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 20693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 20707fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 20717fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 20723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 20753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 20763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionTypeNoProto(retType); 20773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 20783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20793d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 208043d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 208143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 208243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 208343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 20843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 20853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 20863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 2087c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 20883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 2089c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 20903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 20923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 20933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 2094f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 20953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 20963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 20973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 20993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers() || 21003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman LHSCan.getAddressSpace() != RHSCan.getAddressSpace()) 21013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 21023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 21043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 2105f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 21061adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 21071adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 21081adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 21091adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 21104c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 21114c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 2112a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 2113a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 2114a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 2115a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 2116a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 2117213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 2118213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 2119213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 2120ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 2121b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 2122b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 2123b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 21243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21254e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 21264e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 2127bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 2128bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 2129bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 2130bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2131bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2132bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2133bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2134bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2135bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2136bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2137bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2138bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2139bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2140bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2141bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 2142bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 2143bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2144bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2145bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2146bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2147bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2148bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2149bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2150bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2151bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2152bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2153bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 21541adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 21551adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 21563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 21573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 21583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 2159bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 21603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 21613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 21623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 2163bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 21641adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 21653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2166ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 21673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21684a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 21691adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 21701adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 21713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 21723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 21733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 21743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 21753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 21763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 217761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 217861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 217961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 218061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 21813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 21823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 2183c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 2184c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 2185c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 2186c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 2187c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 2188c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 2189c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 2190c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 2191c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 2192c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 2193c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 2194c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 2195c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 21961adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 21973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 21983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 21993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 22003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 22013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 22023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 22033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 22043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 22053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 22063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 220761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 220861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 220961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 221061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 22113bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 22123bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 22133bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 22143bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 22153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 22163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 221761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 221861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 221961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 222061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 22213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 22223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 22233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 22243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 22253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 22263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 22273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 22283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 22293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 22303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 22313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 22323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 22333bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 22343bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 223561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 22363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 22371adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 22383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 22393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman case Type::Tagged: 22403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 22413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(LHS) && isObjCClassType(RHS)) return LHS; 22423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCClassType(LHS) && isObjCIdType(RHS)) return LHS; 22433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 22441adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 22453cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 22463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 22473cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 22483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 22493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 225061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 22511adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 22523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Distinct ObjC interfaces are not compatible; see canAssignObjCInterfaces 22533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // for checking assignment/comparison safety 22543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2255bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff case Type::ObjCQualifiedId: 2256bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 2257bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 22581adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 22591adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 22603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2261ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 2262ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 22637192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 22645426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 2265ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 2266ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 2267ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 2268ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 2269ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 2270ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman // At the moment, only bool has padding bits 2271ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 2272ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2273ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2274ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 2275ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 2276ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 2277ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 2278ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 2279ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 2280ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 2281ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 2282ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 2283ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 2284ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 2285ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 2286ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 2287ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 2288ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 2289ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 2290ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 2291ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 2292ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 2293ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 2294ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 2295ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 2296ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2297ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2298ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2299ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 23005426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 23015426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 23025426bf6456a5aeac416a9150de157904d101c819Chris Lattner 23037192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 23047192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 2305e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 23065451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 23075451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 23085451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 23095451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 23107192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 2311fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 2312fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 2313a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 2314a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 231503ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 231603ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 231703ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 2318a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 2319ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 2320ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2321a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 23227192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 23237192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 23240f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 2325e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2326e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 2327e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 2328e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 2329e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2330fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 2331fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 2332fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 2333fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 23340ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2335fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 2336fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 23372e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, 23382e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor size_reserve); 2339fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 234003ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 234103ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 23420ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2343ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 2344ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2345a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 2346fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 2347fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 2348fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 2349