ASTContext.cpp revision bb49c3ee5d270485f4b273691fd14bc97403fa5d
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. 1868e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 1878e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 1928e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 1937e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 194a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 1957e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 196a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 1978baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 1988baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 199a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 20033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 20133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 20233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 205464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 206464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 207464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 208a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 209b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 210b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 211b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 212b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 213b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 214b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 215b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 216b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 217b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 218b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 219b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 220b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 221b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 222b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 223a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 224a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 225d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 2261d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 227f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner T = getCanonicalType(T); 2289e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner uint64_t Width; 229d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner unsigned Align; 230a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 231030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::TypeName: assert(0 && "Not a canonical type!"); 2325d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 2335d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 234692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: 235b1c2df99ba67ec6c29ac7dceaa4eb2c8cda4a017Chris Lattner assert(0 && "Incomplete types have no size!"); 236fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 237fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff assert(0 && "VLAs not implemented yet!"); 238fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 2391d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 240030d8846c7e520330007087e949f621989876e3aChris Lattner 24198be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 2429e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 243030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 244030d8846c7e520330007087e949f621989876e3aChris Lattner break; 2455c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 246213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 247030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 248030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 24998be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 2509e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 2514bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // FIXME: This isn't right for unusual vectors 2524bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 253030d8846c7e520330007087e949f621989876e3aChris Lattner break; 254030d8846c7e520330007087e949f621989876e3aChris Lattner } 2555d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 2569e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 257a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 258692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 259d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 260d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 2616f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 2629e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 2639e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 2646f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 265692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 266692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 267692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 2686f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 2699e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 2709e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 2716f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 27264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 27364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 27464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 27564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 276692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 2776f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 2789e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 2799e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 2806f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 281692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 2826f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 2839e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 2849e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 2856f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 286692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 2876f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 2889e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 2899e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 2906f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 291692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 2926f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 2939e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 2949e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 2956f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2966f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 2979e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 2989e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 2996f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3006f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 3015426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 3025426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 3036f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3046f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 3059e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 3069e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 3076f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 308a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 309bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 310ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb case Type::ASQual: 31198be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 31298be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 31398be4943e8dc4f3905629a7102668960873cf863Chris Lattner return getTypeInfo(QualType(cast<ASQualType>(T)->getBaseType(), 0)); 314a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 3155426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 316f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 3176f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 318485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 319485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 320485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 321485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 322485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 323485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 324f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 325f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 3265426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 327f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 328f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 329f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 330a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner case Type::Reference: 3317ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 3325d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 3336f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 3346f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 335bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 3365d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 3375d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 3385d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 3395d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 3405d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 34198be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 3429e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 3435d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 3445d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 3455d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 34644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 3471d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 34844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 34944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 35044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 35144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 35244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 3537176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case Type::Tagged: { 3541d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 3551d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 3561d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 3578389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 3588389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 3598389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 3608389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 3618389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 3621d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 3637176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 3647176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 3651d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 3667176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 3677176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 3687176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 369dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 370a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 3717176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 372d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 373464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 3749e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 375a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 376a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 3778b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 3788b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 3793b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 3808b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 3813b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 3828b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 3838b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 3848b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 3853b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 3863b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 3873b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 3883b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 3893b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 3908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 3928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 3938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 39432442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar FieldSize = 39532442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar BitWidthExpr->getIntegerConstantExprValue(Context).getZExtValue(); 3968b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3978b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 3988b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 3998b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 4008b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4013b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 4023b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 4033b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 4043b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 4053b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 4068b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 4073b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 4083b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 4098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 4108b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 4118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4128b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 4138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 4148b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 4158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 4168b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4178b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 4188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 4198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 4208b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4218389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 4228389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 4238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 4248b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 4258b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 4268b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 427c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 4288b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 4298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4308b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 4318b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 4328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 4338b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 4348b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4358b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4363b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 4373b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 4383b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 4393b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 4403b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 4413b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 4423b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 4433b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 4443b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 4458b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 4468b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 4478b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4488b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 4498b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 4508b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4518b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4528b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 4538b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 4548b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4558b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 4568b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 4578b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 4588b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4598b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 4608b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4618b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4628b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 4638b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 4648b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 4658b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 46644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 46761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// getASTObjcInterfaceLayout - Get or compute information about the layout of 46861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// the specified Objective C, which indicates its size and ivar 46944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// position information. 47044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 47144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang PatelASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 47244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 47344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout *&Entry = ASTObjCInterfaces[D]; 47444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (Entry) return *Entry; 47544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 47644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 47744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 4786a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 4796a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned FieldCount = D->ivar_size(); 4806a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 4816a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel FieldCount++; 4826a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 4836a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 4846a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel uint64_t Size = SL.getSize(); 4856a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(Size, Alignment); 4866a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 48761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner // Super class is at the beginning of the layout. 48861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner NewEntry->SetFieldOffset(0, 0); 4896a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 4906a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(); 4916a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 4926a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 49344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Entry = NewEntry; 49444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 4953b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 4963b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 4973b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 49844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 49944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 50044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 50144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 50244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 50344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 50444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 50544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 50644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 50744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 5083b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar NewEntry->LayoutField(Ivar, i++, false, StructPacking, *this); 50944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 51044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 51144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 51244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 51344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 51444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 51544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 51644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 51788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 518464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 519464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 52098be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 5214b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 5224b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 5234bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 524464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 52588a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 526464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 5274bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 52888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 52988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 53088a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 531464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 5324bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5338b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->InitializeLayout(D->getNumMembers()); 53439ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 535464175bba1318bef7905122e9fda20cff926df78Chris Lattner 5363b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 5373b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 5383b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 5393b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 5404bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 5418b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 5428b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 5434bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5444bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 5454bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 5464bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman for (unsigned i = 0, e = D->getNumMembers(); i != e; ++i) { 5474bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman const FieldDecl *FD = D->getMember(i); 5483b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar NewEntry->LayoutField(FD, i, IsUnion, StructPacking, *this); 549464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 5504bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5514bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 5524bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 5538b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 5545d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 555464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 556464175bba1318bef7905122e9fda20cff926df78Chris Lattner 557a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 558a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 559a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 560a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 561ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher LambQualType ASTContext::getASQualType(QualType T, unsigned AddressSpace) { 562f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 563f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 564f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 565f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 566f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Type's cannot have multiple ASQuals, therefore we know we only have to deal 567f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // with CVR qualifiers from here on out. 568f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(CanT.getAddressSpace() == 0 && 569f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner "Type is already address space qualified"); 570f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 571f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Check if we've already instantiated an address space qual'd type of this 572f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // type. 573ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 574f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType::Profile(ID, T.getTypePtr(), AddressSpace); 575ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 576ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (ASQualType *ASQy = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 577ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb return QualType(ASQy, 0); 578ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 579ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 580ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 581ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 582ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (!T->isCanonical()) { 583f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getASQualType(CanT, AddressSpace); 584ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 585ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // Get the new insert position for the node we care about. 586ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualType *NewIP = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos); 587f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 588ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 589f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType *New = new ASQualType(T.getTypePtr(), Canonical, AddressSpace); 590ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualTypes.InsertNode(New, InsertPos); 591ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 592f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return QualType(New, T.getCVRQualifiers()); 593ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 594ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 595a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 6075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 612f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 6135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 616f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 6175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *New = new ComplexType(T, Canonical); 6195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 6215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 6355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 6365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 641f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 6425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 645f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 6465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *New = new PointerType(T, Canonical); 6485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 6505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6535618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 6545618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 6555618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 656296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 657296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 6585618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 6595618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 6605618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 6615618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6625618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 6635618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 6645618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 6655618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 6665618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 667296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 6685618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 6695618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 6705618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 6715618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 6725618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6735618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 6745618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 6755618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 676f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 6775618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 6785618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *New = new BlockPointerType(T, Canonical); 6795618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 6805618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 6815618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 6825618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 6835618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getReferenceType - Return the uniqued reference to the type for a reference 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to the specified type. 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getReferenceType(QualType T) { 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 6915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ReferenceType *RT = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 700f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getReferenceType(getCanonicalType(T)); 7015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *NewIP = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 704f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *New = new ReferenceType(T, Canonical); 7085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceTypes.InsertNode(New, InsertPos); 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 713fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 714fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 715fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 716c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 717c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 718c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 720fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType::Profile(ID, EltTy, ArySize); 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7237192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 7247192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 7255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 7265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 731f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 732c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7347192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 7357192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 736f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 739c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ConstantArrayType *New = new ConstantArrayType(EltTy, Canonical, ArySize, 740c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 7417192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 746bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 747bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 748c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 749c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 750c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 751c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 752c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 753c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 754c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayType *New = new VariableArrayType(EltTy, QualType(), NumElts, 755c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 756c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 757c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 758c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 759c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 760c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 761c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 762c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 763c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 764c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 765c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 766c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType::Profile(ID, EltTy); 767c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 768c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 769c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 770c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 771c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 772c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 773c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 774c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 775c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 776c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 777c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 778f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 7792bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 780c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 781c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 782c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 783c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 784f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7852bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 786c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 787c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *New = new IncompleteArrayType(EltTy, Canonical, 788c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 789c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 790c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 791c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 792c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 793fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 794fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 79573322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 79673322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 79773322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 800f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 80173322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 8025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 8045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 80573322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 8065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 8085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 8095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 8115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 8125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 814f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 818f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *New = new VectorType(vecType, NumElts, Canonical); 8215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 8225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 8235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 826213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 82773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 828213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 82973322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 83073322924127c873c13101b705dd823f5539ffa5fSteve Naroff 831f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 832213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 83373322924127c873c13101b705dd823f5539ffa5fSteve Naroff 83473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 83573322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 836213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 83773322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 83873322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 83973322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 84073322924127c873c13101b705dd823f5539ffa5fSteve Naroff 84173322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 84273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 84373322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 84473322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 845213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 84673322924127c873c13101b705dd823f5539ffa5fSteve Naroff 84773322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 84873322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 849f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 85073322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 851213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman ExtVectorType *New = new ExtVectorType(vecType, NumElts, Canonical); 85273322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 85373322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 85473322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 85573322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 85673322924127c873c13101b705dd823f5539ffa5fSteve Naroff 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionTypeNoProto(QualType ResultTy) { 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto::Profile(ID, ResultTy); 8645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeNoProto *FT = 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos)) 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 872f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionTypeNoProto(getCanonicalType(ResultTy)); 8735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *NewIP = 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos); 877f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *New = new FunctionTypeNoProto(ResultTy, Canonical); 8815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 88256cd7e3848c2d59ca2ec3b72d0834192edf0bcdfEli Friedman FunctionTypeNoProtos.InsertNode(New, InsertPos); 8835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 88861710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 889971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 890971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned TypeQuals) { 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 894971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis FunctionTypeProto::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 895971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals); 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FTP = 8995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos)) 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 9035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 9045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 914f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 916f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 9187fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis isVariadic, TypeQuals); 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *NewIP = 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos); 923f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FunctionTypeProto objects are not allocated with new because they have a 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // variable size array (for parameter types) at the end of them. 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *FTP = 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer (FunctionTypeProto*)malloc(sizeof(FunctionTypeProto) + 930942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner NumArgs*sizeof(QualType)); 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer new (FTP) FunctionTypeProto(ResultTy, ArgArray, NumArgs, isVariadic, 932971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals, Canonical); 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.InsertNode(FTP, InsertPos); 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9382ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 9392ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 9404b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 9411e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 9422ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9432ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 9441e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 9452ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 9461e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 9472ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 94849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 9491e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(Decl)) { 9504b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek Decl->TypeForDecl = PrevDecl ? PrevDecl->TypeForDecl 9514b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek : new CXXRecordType(CXXRecord); 9524b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 9531e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 9544b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek Decl->TypeForDecl = PrevDecl ? PrevDecl->TypeForDecl 9554b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek : new RecordType(Record); 9564b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 9571e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) 9582ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Decl->TypeForDecl = new EnumType(Enum); 95949aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 9602ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 96149aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 9624b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 96349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 9642ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 9652ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 9664b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek/// setTagDefinition - Used by RecordDecl::defineBody to inform ASTContext 9674b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek/// about which RecordDecl serves as the definition of a particular 9684b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek/// struct/union/class. This will eventually be used by enums as well. 9694b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenekvoid ASTContext::setTagDefinition(TagDecl* D) { 9704b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert (D->isDefinition()); 9714b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek cast<TagType>(D->TypeForDecl)->decl = D; 9724b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek} 9734b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 9765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 979f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 980c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Decl->TypeForDecl = new TypedefType(Type::TypeName, Decl, Canonical); 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 985a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 9863536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 987a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 9883536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9893536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 990a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->TypeForDecl = new ObjCInterfaceType(Type::ObjCInterface, Decl); 9913536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 9923536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 9933536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 9943536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 99588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 99688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 99788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 99888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 9992e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 100088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 100188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 100288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 100388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 100488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 100588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 100688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 100788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 100888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 100988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 101088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 101188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 101288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 101388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 101488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1015065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1016065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1017a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1018a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 101988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 102088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 102188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 10224b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1023b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 10244b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 10254b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1026a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1027a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10284b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 10294b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 10304b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1031a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1032a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek new ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 10334b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1034a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 10354b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 10364b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 10374b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 103888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 103988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 104062f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1041c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 104288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 104388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 104488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1045c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1046a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1047c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1048c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1049a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 105062f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1051c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1052c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1053c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 105462f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdType *QType = new ObjCQualifiedIdType(Protocols, NumProtocols); 1055c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1056a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1057c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1058c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1059c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 10609752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 10619752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 10629752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 10639752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 10649752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 10658d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 1066f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 10679752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfExpr *toe = new TypeOfExpr(tofExpr, Canonical); 10689752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 10699752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1070d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1071d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 10729752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 10739752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 10749752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 10759752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 10769752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1077d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1078f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 10799752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfType *tot = new TypeOfType(tofType, Canonical); 10809752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 10819752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1082d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1083d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1087d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 10882ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1095b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 109855f4b02bc71e7347986c6a5249bef635aac1901aArgyrios Kyrtzidis/// getWCharType - Return the unique type for "wchar_t" (C99 7.17), the 1099fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 1100fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 110155f4b02bc71e7347986c6a5249bef635aac1901aArgyrios KyrtzidisQualType ASTContext::getWCharType() const { 110264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (LangOpts.CPlusPlus) 110364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 110464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1105b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // FIXME: In C, shouldn't WCharTy just be a typedef of the target's 1106b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // wide-character type? 1107b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getWCharType()); 1108fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 1109fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 111064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 111164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 111264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 111364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 111464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 111564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 111664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 111764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 111864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 111964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 112064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 112164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 112264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 112364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 11248b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 11258b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 11268b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1127b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 11288b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 11298b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1130e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1131e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1132e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1133e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 113477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 113577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 113677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 113777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 113877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 113977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 114077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 114177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1142c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1143c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1144c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1145c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1146c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1147c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1148c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1149c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1150c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1151c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1152c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1153c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1154c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1155c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1156c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1157c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1158c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1159c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1160c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1161c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1162c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1163c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1164c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1165c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // FIXME: What is the ownership of size expressions in VLAs? 1166c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1167c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1168c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1169c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1170c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1171c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1172c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1173c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1174c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1175c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1176c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1177c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1178c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1179c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1180c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1181c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1182c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1183c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1184c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Make sure to look through type qualifiers (like ASQuals) for the negative 1185c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1186c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1187c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1188c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1189c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1190c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1191c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1192c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1193c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1194c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1195c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1196c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1197c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1198c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1199c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1200c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1201c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Rip through ASQualType's and typedefs to get to a concrete type. 1202c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1203c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ASQualType *ASQT = dyn_cast<ASQualType>(Ty)) { 1204c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner AddrSpace = ASQT->getAddressSpace(); 1205c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = ASQT->getBaseType(); 1206c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1207c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1208c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1209c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1210c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1211c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1212c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1213c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1214c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1215c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1216c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1217c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1218c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1219c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1220c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1221c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1222c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1223c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1224c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1225c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1226c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getASQualType(NewEltTy, AddrSpace); 1227c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1228c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1229c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1230c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1231c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1232c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1233c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1234c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1235c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1236c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1237c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1238c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // FIXME: What is the ownership of size expressions in VLAs? 1239c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1240c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1241c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1242c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 124377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 124477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 124577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1246e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1247e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1248e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1249e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1250e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1251e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1252e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1253c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1254c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1255c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1256c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1257c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1258c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1259e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1260c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1261e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1262e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1263c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1264e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1265e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1268a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1269ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1271a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1272ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1273a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 12745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 12765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 12775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1280716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1281716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1282716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1283716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 12841361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 12851361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 12861361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 12871361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 12881361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1289716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1290f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1291f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1292f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1293f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1294f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 12951361b11066239ea15764a2a844405352d87296b3Chris Lattner 12961361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 12971361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 12981361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 12991361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 13001361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 13011361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 13067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 13077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 13087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1309a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1310a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1311a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1312a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1313a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1314fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1315a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1316fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1317fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1320f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1321f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1322f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1323f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1324f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1325f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1326f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1327f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1328f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 13297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 13307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 13317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 13327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 13337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 13347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 13357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 13367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 13377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 13387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 13397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 13407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 13417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 13427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 13437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 13447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 13457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 13467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 13477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 13487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1349f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1350f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1351f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 13527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 13537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 13547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 13557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1356f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1357f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 13587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 13595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1360f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1361f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 13625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 13647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 13655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 13677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 13687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 13697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 13707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 13717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 13727cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 13737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 13747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 13757cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 13767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 13777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 13787cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 13797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 13807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 13817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 13827cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 13837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 13847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 13857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 13865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 13887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 13897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 13907cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 13915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 139271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 139371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 139471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 139571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 13966c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 139739ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1398df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 1399f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 140071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 140171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 140271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1403f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1404f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 140571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1406f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 140771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1408f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 140971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // Create fields 1410f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldDecl *FieldDecls[4]; 141171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 1412f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson for (unsigned i = 0; i < 4; ++i) 1413b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner FieldDecls[i] = FieldDecl::Create(*this, SourceLocation(), 0, 14148e25d8681822d8094bfeb97b2239363552548171Chris Lattner FieldTypes[i]); 141571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 14164b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek CFConstantStringTypeDecl->defineBody(*this, FieldDecls, 4); 141771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 141871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 141971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 14208467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1421b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1422bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 1423bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 1424bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 1425bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 1426bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 1427bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 1428bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 1429bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 1430bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 1431bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 1432bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1433bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson FieldDecl *FieldDecls[4]; 1434bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson for (size_t i = 0; i < 4; ++i) 1435bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson FieldDecls[i] = FieldDecl::Create(*this, SourceLocation(), 0, 1436bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson FieldTypes[i]); 1437bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1438bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson ObjCFastEnumerationStateTypeDecl = 1439bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1440df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("__objcFastEnumerationState")); 1441bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 14424b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek ObjCFastEnumerationStateTypeDecl->defineBody(*this, FieldDecls, 4); 1443bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 1444bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1445bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 1446bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 1447bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1448e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1449e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 14502d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1451e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 1452bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 1453bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 145485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 145585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 145685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 145785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1458a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 145933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1460a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 146198be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 146233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 146333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 146433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 146598be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 146633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 146733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 146898be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 146998be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 147033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 147133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1472a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 147333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1474c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 1475e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1476c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1477ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1478a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 147933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 14800d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 148133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 148233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 148333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 148433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 148598be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 148633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 148733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 148833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 148933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 149033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 149133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1492a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1493a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 149433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 149533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 149633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 149733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 149833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 149933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 150033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 150133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 150233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 150333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1504ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 150533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 1506a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier( 1507a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->getParamDecl(i)->getObjCDeclQualifier(), S); 15080d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 150933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1510a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 151133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 151233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 151333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1514c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 1515c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// method declaration. If non-NULL, Container must be either an 1516c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 1517c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 1518c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 1519c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 1520e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1521c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 1522c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 1523c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 1524c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1525c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 1526c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 1527c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 1528c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 1529c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1530c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = CID->propimpl_begin(), e = CID->propimpl_end(); i != e; ++i) { 1531c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1532c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1533c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1534c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1535c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1536c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1537c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1538c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1539c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1540c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 154161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 1542c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1543c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = OID->propimpl_begin(), e = OID->propimpl_end(); i != e; ++i) { 1544c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1545c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1546c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1547c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1548c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1549c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1550c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1551c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1552c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1553c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1554c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1555c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1556c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1557c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 1558c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1559c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 1560c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: GCC uses a generating_property_type_encoding mode during 1561c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // this part. Investigate. 15620d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PD->getType(), S); 1563c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1564c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 1565c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 1566c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1567c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 1568c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 1569c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 1570c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 1571c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1572c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1573c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1574c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 1575c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 1576c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 1577c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 1578c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1579c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 1580c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 1581077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 1582c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1583c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1584c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 1585c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 1586077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 1587c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1588c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1589c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 1590c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 1591c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 1592c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += OID->getName(); 1593c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1594c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1595c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 1596c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 1597c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 15987d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 1599d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar bool NameFields) const { 160082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 160182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 160282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 160382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 16040d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForTypeImpl(T, S, true, true, NameFields); 160582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 160682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 160782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 160882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 160982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 1610d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar bool NameFields) const { 1611e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 161285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson char encoding; 161385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson switch (BT->getKind()) { 16147176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner default: assert(0 && "Unhandled builtin type kind"); 16157176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 16167176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 161785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_U: 16187176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 16197176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 16207176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 16217176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULong: encoding = 'L'; break; 16227176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 162385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_S: 16247176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 16257176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Short: encoding = 's'; break; 16267176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 16277176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Long: encoding = 'l'; break; 16287176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 16297176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 16307176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 16317176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 163285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 163385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 163485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += encoding; 1635c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1636a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1637c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // Treat id<P...> same as 'id' for encoding purposes. 163882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar return getObjCEncodingForTypeImpl(getObjCIdType(), S, 163982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar ExpandPointedToStructures, 16400d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar ExpandStructures, NameFields); 1641c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1642c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 164385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 1644a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (isObjCIdType(PointeeTy) || PointeeTy->isObjCInterfaceType()) { 1645c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 1646c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 1647a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 16488baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 16498baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1650a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 16518baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 16528baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1653c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 165485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 165585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 165685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 165785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 1658e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 165985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 166085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 166185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 166285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 166385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 166485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 166582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar getObjCEncodingForTypeImpl(PT->getPointeeType(), S, 1666d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 16670d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar NameFields); 1668c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 1669c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 1670c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 167185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 167285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 167385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 167485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 167585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 167685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 167785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 167882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar getObjCEncodingForTypeImpl(AT->getElementType(), S, 16790d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar false, ExpandStructures, NameFields); 168085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 1681c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 1682c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 16836de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 168482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 1685d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 1686502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 1687502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 1688502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 1689502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 1690502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 1691502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 16920d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 16937d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 16947d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (int i = 0; i < RDecl->getNumMembers(); i++) { 1695d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar FieldDecl *FD = RDecl->getMember(i); 1696d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar if (NameFields) { 1697d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 1698d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += FD->getName(); 1699d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 1700d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 1701d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 1702d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 1703d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar if (const Expr *E = FD->getBitWidth()) { 1704d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // FIXME: Fix constness. 1705d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar ASTContext *Ctx = const_cast<ASTContext*>(this); 1706d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar unsigned N = E->getIntegerConstantExprValue(*Ctx).getZExtValue(); 1707d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // FIXME: Obj-C is losing information about the type size 1708d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // here. Investigate if this is a problem. 1709d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += 'b'; 1710d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += llvm::utostr(N); 1711d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 17120d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForTypeImpl(FD->getType(), S, false, true, NameFields); 1713d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 17147d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 17156de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 1716d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 17175e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 17185e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff S += 'i'; 1719485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 1720485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff S += '^'; // This type string is the same as general pointers. 172185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } else 1722f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 172385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 172485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1725a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 1726ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 1727ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 1728ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 1729ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 1730ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 1731ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 1732ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 1733ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 1734ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 1735ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 1736ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 1737ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 1738ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 1739ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 1740ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 1741b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 1742b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 1743b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 1744b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1745b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 1746b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 1747b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1748a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 17497e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 1750a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 17517e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 17527e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 17537e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 17547e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(ptr && "'id' incorrectly typed"); 17557e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 17567e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(rec && "'id' incorrectly typed"); 17577e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 17587e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 17597e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1760a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 1761b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 1762a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 1763b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1764b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 1765b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 1766b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(ptr && "'SEL' incorrectly typed"); 1767b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 1768b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(rec && "'SEL' incorrectly typed"); 1769b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 1770b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 1771b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1772a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 1773390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 1774a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 1775390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 1776390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 1777a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 17788baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 1779a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 17808baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 17818baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 17828baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 17838baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 17848baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 17858baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 17868baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 17878baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 17888baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1789a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 1790a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 17912198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 17922198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1793a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 17942198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 17952198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1796b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 1797d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 1798d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 1799d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 1800b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 1801b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 1802b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 1803b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 1804b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 1805b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 1806b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 1807b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 1808b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 1809b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 1810b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 1811b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 1812b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 1813b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 1814b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 1815b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1816b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1817b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 1818b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1819b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1820b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 1821b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 1822b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 1823b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 1824b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 1825b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty->isObjCQualifiedIdType()) 1826b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1827b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 18286ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 18296ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 18306ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 18316ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 18326ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 1833b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 1834b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 1835b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1836b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 1837b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 1838b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 1839b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty == getObjCIdType() || Ty == getObjCClassType()) 1840b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1841b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1842b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 1843b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType(); 1844b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 1845b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 18466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 18476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 18486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 1849770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 18501c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 1851dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 1852dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 1853dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1854dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 1855dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 1856dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1857dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 1858dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1859dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 1860dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 1861dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1862dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 1863dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 18641c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 18653c1b91223908f1848622c3da21beced6d42371d4Steve Naroff return getCanonicalType(lhs) == getCanonicalType(rhs); 18661c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 18671c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 18686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 18696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 18706ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 18716ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 18726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 18736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 187461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 18756ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 18766ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 18786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 18796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 18806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 18813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 18823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 18836ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 18846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 18856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 18866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 18876ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18886ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 18896ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 18906ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 18916ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 18926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 18946ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 18956ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 18966ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 18976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18986ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 18996ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 19006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 19016ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(); 19026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHSP->qual_end(); 19036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(); 19046ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHSP->qual_end(); 19056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19066ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 19076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 19086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 19096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 19106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 19116ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner while (RHSPI != RHSPE) { 19136ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 19146ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 19156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (RHSProto != LHSProto) 19166ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner continue; 19176ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19186ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Otherwise, the RHS does have this element. 19196ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ++LHSPI; 19206ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (LHSPI == LHSPE) 19216ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // All protocols in LHS exist in RHS. 19226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19236ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHSProto = *LHSPI; 19246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner } 19256ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 19266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 19276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 19286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 19296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 1930ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 1931ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 1932ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 1933ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 19343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 19353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 19363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 19373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19383d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 19393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 19403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 19413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 19423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 19433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 19443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 19453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 19473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 19483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 194961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 195061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 195161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 195261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 19533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 19553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 19563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 19573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 19593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 19603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 19613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 19633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 19643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 19653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19667fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 19677fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 19687fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 19693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 19703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 19713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 19723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 19733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 19743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 19753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 19763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 197761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 197861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 197961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 198061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 19813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 19823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 19833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 19843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 19857fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 19863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 19873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 19893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 19903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *proto = lproto ? lproto : rproto; 19923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 19933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 19943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 19953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 19963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 19973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 19983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 19993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 20003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 20013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 20023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 20033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 20043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 20053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 20083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 20093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 20107fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 20117fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 20123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 20153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 20163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionTypeNoProto(retType); 20173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 20183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20193d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 202043d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 202143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 202243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 202343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 20243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 20253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 20263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 2027c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 20283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 2029c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 20303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 20323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 20333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 2034f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 20353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 20363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 20373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 20393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers() || 20403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman LHSCan.getAddressSpace() != RHSCan.getAddressSpace()) 20413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 20423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 20443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 2045f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 20461adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 20471adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 20481adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 20491adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 20504c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 20514c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 2052a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 2053a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 2054a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 2055a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 2056a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 2057213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 2058213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 2059213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 2060ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 2061b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 2062b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 2063b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 20643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 2065a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner // If the canonical type classes don't match. 20661adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass != RHSClass) { 206797341620065b89f5197b846be94c4cfad5df2af4Steve Naroff // ID is compatible with all qualified id types. 20683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHS->isObjCQualifiedIdType()) { 206987f3b93423062c343a35714517517a52cc9da4a5Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 207087f3b93423062c343a35714517517a52cc9da4a5Steve Naroff QualType pType = PT->getPointeeType(); 207187f3b93423062c343a35714517517a52cc9da4a5Steve Naroff if (isObjCIdType(pType)) 20723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 207387f3b93423062c343a35714517517a52cc9da4a5Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 207487f3b93423062c343a35714517517a52cc9da4a5Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 207587f3b93423062c343a35714517517a52cc9da4a5Steve Naroff // to. Need to refactor. The following check is insufficient, since we 207687f3b93423062c343a35714517517a52cc9da4a5Steve Naroff // need to make sure the class implements the protocol. 207787f3b93423062c343a35714517517a52cc9da4a5Steve Naroff if (pType->isObjCInterfaceType()) 207887f3b93423062c343a35714517517a52cc9da4a5Steve Naroff return LHS; 207987f3b93423062c343a35714517517a52cc9da4a5Steve Naroff } 208097341620065b89f5197b846be94c4cfad5df2af4Steve Naroff } 20813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RHS->isObjCQualifiedIdType()) { 208287f3b93423062c343a35714517517a52cc9da4a5Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 208387f3b93423062c343a35714517517a52cc9da4a5Steve Naroff QualType pType = PT->getPointeeType(); 208487f3b93423062c343a35714517517a52cc9da4a5Steve Naroff if (isObjCIdType(pType)) 20853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 208687f3b93423062c343a35714517517a52cc9da4a5Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 208787f3b93423062c343a35714517517a52cc9da4a5Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 208887f3b93423062c343a35714517517a52cc9da4a5Steve Naroff // to. Need to refactor. The following check is insufficient, since we 208987f3b93423062c343a35714517517a52cc9da4a5Steve Naroff // need to make sure the class implements the protocol. 209087f3b93423062c343a35714517517a52cc9da4a5Steve Naroff if (pType->isObjCInterfaceType()) 209187f3b93423062c343a35714517517a52cc9da4a5Steve Naroff return RHS; 209287f3b93423062c343a35714517517a52cc9da4a5Steve Naroff } 20933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20951adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 20961adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 20973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 20983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 20993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 2100bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 21013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 21023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 21033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 2104bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 21051adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 21063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2107ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 21083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21094a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 21101adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 21111adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 21123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 21133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 21143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 21153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 21163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 21173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 211861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 211961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 212061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 212161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 21223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 21233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 21241adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 21253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 21263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 21273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 21283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 21293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 21303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 21323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 21333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 21343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 213561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 213661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 213761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 213861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 21393bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 21403bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 21413bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 21423bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 21433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 21443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 214561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 214661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 214761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 214861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 21493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 21503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 21513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 21523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 21533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 21543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 21553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 21563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 21573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 21583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 21593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 21603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 21613bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 21623bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 216361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 21643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 21651adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 21663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 21673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman case Type::Tagged: 21683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 21693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(LHS) && isObjCClassType(RHS)) return LHS; 21703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCClassType(LHS) && isObjCIdType(RHS)) return LHS; 21713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 21721adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 21733cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 21743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 21753cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 21763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 21773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 217861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 21791adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 21803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Distinct ObjC interfaces are not compatible; see canAssignObjCInterfaces 21813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // for checking assignment/comparison safety 21823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 21831adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 21841adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 21853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2186ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 2187ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 21887192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 21895426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 2190ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 2191ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 2192ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 2193ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 2194ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 2195ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman // At the moment, only bool has padding bits 2196ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 2197ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2198ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2199ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 2200ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 2201ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 2202ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 2203ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 2204ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 2205ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 2206ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 2207ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 2208ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 2209ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 2210ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 2211ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 2212ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 2213ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 2214ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 2215ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 2216ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 2217ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 2218ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 2219ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 2220ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 2221ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2222ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2223ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2224ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 22255426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 22265426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 22275426bf6456a5aeac416a9150de157904d101c819Chris Lattner 22287192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 22297192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 2230e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 22315451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 22325451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 22335451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 22345451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 22357192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 2236fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 2237fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 2238a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 2239a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 224003ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 224103ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 224203ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 2243a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 2244ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 2245ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2246a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 22477192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 22487192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 22490f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 2250e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2251e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 2252e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 2253e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 2254e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2255fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 2256fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 2257fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 2258fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 22590ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2260fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 2261fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 22622e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, 22632e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor size_reserve); 2264fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 226503ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 226603ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 22670ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2268ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 2269ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2270a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 2271fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 2272fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 2273fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 2274