ASTContext.cpp revision 213541a68a3e137d11d2cefb612c6cdb410d7e8e
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" 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Decl.h" 16980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/SmallVector.h" 1985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 207192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Serialize.h" 217192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Deserialize.h" 2285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FT = dyn_cast<FunctionTypeProto>(Types.back())) { 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Destroy the object, but don't call delete. These are malloc'd. 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FT->~FunctionTypeProto(); 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer free(FT); 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer delete Types.back(); 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumBuiltin = 0, NumPointer = 0, NumArray = 0, NumFunctionP = 0; 476d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner unsigned NumVector = 0, NumComplex = 0; 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumFunctionNP = 0, NumTypeName = 0, NumTagged = 0, NumReference = 0; 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumTagStruct = 0, NumTagUnion = 0, NumTagEnum = 0, NumTagClass = 0; 51a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCInterfaces = 0, NumObjCQualifiedInterfaces = 0; 52a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCQualifiedIds = 0; 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isa<BuiltinType>(T)) 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumBuiltin; 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<PointerType>(T)) 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumPointer; 605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ReferenceType>(T)) 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumReference; 626d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<ComplexType>(T)) 636d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumComplex; 645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ArrayType>(T)) 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumArray; 666d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<VectorType>(T)) 676d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumVector; 685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeNoProto>(T)) 695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionNP; 705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeProto>(T)) 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionP; 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<TypedefType>(T)) 735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTypeName; 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (TagType *TT = dyn_cast<TagType>(T)) { 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTagged; 765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (TT->getDecl()->getKind()) { 775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown tagged type!"); 785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case Decl::Struct: ++NumTagStruct; break; 795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case Decl::Union: ++NumTagUnion; break; 805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case Decl::Class: ++NumTagClass; break; 815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case Decl::Enum: ++NumTagEnum; break; 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 83a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isa<ObjCInterfaceType>(T)) 84a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCInterfaces; 85a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedInterfaceType>(T)) 86a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedInterfaces; 87a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedIdType>(T)) 88a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedIds; 893f128ad2691d299b96663da85a9e069c4081ea7cSteve Naroff else { 90beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner QualType(T, 0).dump(); 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(0 && "Unknown type!"); 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d builtin types\n", NumBuiltin); 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d pointer types\n", NumPointer); 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d reference types\n", NumReference); 986d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d complex types\n", NumComplex); 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d array types\n", NumArray); 1006d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d vector types\n", NumVector); 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with proto\n", NumFunctionP); 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with no proto\n", NumFunctionNP); 1035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d typename (typedef) types\n", NumTypeName); 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d tagged types\n", NumTagged); 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d struct types\n", NumTagStruct); 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d union types\n", NumTagUnion); 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d class types\n", NumTagClass); 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d enum types\n", NumTagEnum); 109a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek fprintf(stderr, " %d interface types\n", NumObjCInterfaces); 110beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner fprintf(stderr, " %d protocol qualified interface types\n", 111a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedInterfaces); 112c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian fprintf(stderr, " %d protocol qualified id types\n", 113a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedIds); 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "Total bytes = %d\n", int(NumBuiltin*sizeof(BuiltinType)+ 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumPointer*sizeof(PointerType)+NumArray*sizeof(ArrayType)+ 1166d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner NumComplex*sizeof(ComplexType)+NumVector*sizeof(VectorType)+ 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionP*sizeof(FunctionTypeProto)+ 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionNP*sizeof(FunctionTypeNoProto)+ 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumTypeName*sizeof(TypedefType)+NumTagged*sizeof(TagType))); 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back((R = QualType(new BuiltinType(K),0)).getTypePtr()); 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 13698be4943e8dc4f3905629a7102668960873cf863Chris Lattner if (Target.isCharSigned()) 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 1637e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1647e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 165a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 1667e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 167a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 1688baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 1698baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 170a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 17133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 17233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 17333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 176464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 177464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 178464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 179a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 180a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 181a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 182d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 18398be4943e8dc4f3905629a7102668960873cf863Chris LattnerASTContext::getTypeInfo(QualType T) { 184f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner T = getCanonicalType(T); 1859e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner uint64_t Width; 186d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner unsigned Align; 187a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 188030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::TypeName: assert(0 && "Not a canonical type!"); 1895d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 1905d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 191692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: 192b1c2df99ba67ec6c29ac7dceaa4eb2c8cda4a017Chris Lattner assert(0 && "Incomplete types have no size!"); 193fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 194fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff assert(0 && "VLAs not implemented yet!"); 195fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 196fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType *CAT = cast<ConstantArrayType>(T); 197030d8846c7e520330007087e949f621989876e3aChris Lattner 19898be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 1999e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 200030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 201030d8846c7e520330007087e949f621989876e3aChris Lattner break; 2025c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 203213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 204030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 205030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 20698be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 2079e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 208030d8846c7e520330007087e949f621989876e3aChris Lattner // FIXME: Vector alignment is not the alignment of its elements. 209030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 210030d8846c7e520330007087e949f621989876e3aChris Lattner break; 211030d8846c7e520330007087e949f621989876e3aChris Lattner } 2125d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 2139e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 214a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 215692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 216d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 217d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 2186f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 2199e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 2209e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 2216f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 222692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 223692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 224692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 2256f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 2269e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 2279e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 2286f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 229692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 2306f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 2319e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 2329e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 2336f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 234692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 2356f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 2369e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 2379e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 2386f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 239692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 2406f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 2419e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 2429e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 2436f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 244692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 2456f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 2469e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 2479e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 2486f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2496f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 2509e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 2519e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 2526f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2536f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 2545426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 2555426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 2566f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2576f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 2589e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 2599e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 2606f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 261a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 262bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 263ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb case Type::ASQual: 26498be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 26598be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 26698be4943e8dc4f3905629a7102668960873cf863Chris Lattner return getTypeInfo(QualType(cast<ASQualType>(T)->getBaseType(), 0)); 267a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 2685426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 269f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 2706f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 271f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 272f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 2735426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 274f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 275f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 276f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 277a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner case Type::Reference: 2787ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 2795d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 2806f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 2816f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 282bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 2835d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 2845d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 2855d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 2865d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 2875d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 28898be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 2899e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 2905d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 2915d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 2925d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 2937176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case Type::Tagged: { 2947176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner if (EnumType *ET = dyn_cast<EnumType>(cast<TagType>(T))) 2957176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 2967176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 2977176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner RecordType *RT = cast<RecordType>(T); 2987176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 2997176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 3007176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 301dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 302a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 3037176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 304d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 305464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 3069e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 307a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 308a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 30988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 310464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 311464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 31298be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 313464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(D->isDefinition() && "Cannot get layout of forward declarations!"); 314464175bba1318bef7905122e9fda20cff926df78Chris Lattner 315464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 31688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 317464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 318464175bba1318bef7905122e9fda20cff926df78Chris Lattner 31988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 32088a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 32188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 322464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 323464175bba1318bef7905122e9fda20cff926df78Chris Lattner 324464175bba1318bef7905122e9fda20cff926df78Chris Lattner uint64_t *FieldOffsets = new uint64_t[D->getNumMembers()]; 325464175bba1318bef7905122e9fda20cff926df78Chris Lattner uint64_t RecordSize = 0; 326464175bba1318bef7905122e9fda20cff926df78Chris Lattner unsigned RecordAlign = 8; // Default alignment = 1 byte = 8 bits. 327464175bba1318bef7905122e9fda20cff926df78Chris Lattner 328464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (D->getKind() != Decl::Union) { 329042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 330042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson RecordAlign = std::max(RecordAlign, AA->getAlignment()); 331042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson 3326a24acbb3dbb3bea9426716bee6ad6023ad15f3fAnders Carlsson bool StructIsPacked = D->getAttr<PackedAttr>(); 3336a24acbb3dbb3bea9426716bee6ad6023ad15f3fAnders Carlsson 334464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Layout each field, for now, just sequentially, respecting alignment. In 335464175bba1318bef7905122e9fda20cff926df78Chris Lattner // the future, this will need to be tweakable by targets. 336464175bba1318bef7905122e9fda20cff926df78Chris Lattner for (unsigned i = 0, e = D->getNumMembers(); i != e; ++i) { 337464175bba1318bef7905122e9fda20cff926df78Chris Lattner const FieldDecl *FD = D->getMember(i); 3386a24acbb3dbb3bea9426716bee6ad6023ad15f3fAnders Carlsson bool FieldIsPacked = StructIsPacked || FD->getAttr<PackedAttr>(); 33975afb585496b8c521672a6a91b8dd1838d36185aEli Friedman uint64_t FieldSize; 34075afb585496b8c521672a6a91b8dd1838d36185aEli Friedman unsigned FieldAlign; 3418af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 3428af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (const Expr *BitWidthExpr = FD->getBitWidth()) { 3438af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson llvm::APSInt I(32); 3448af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson bool BitWidthIsICE = 3458af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson BitWidthExpr->isIntegerConstantExpr(I, *this); 3468af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson assert (BitWidthIsICE && "Invalid BitField size expression"); 3478af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldSize = I.getZExtValue(); 3488af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 34998be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> TypeInfo = getTypeInfo(FD->getType()); 3508af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson uint64_t TypeSize = TypeInfo.first; 351042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson 352042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 353042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson FieldAlign = AA->getAlignment(); 354042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson else if (FieldIsPacked) 355042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson FieldAlign = 8; 356042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson else { 3578af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // FIXME: This is X86 specific, use 32-bit alignment for long long. 3588af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (FD->getType()->isIntegerType() && TypeInfo.second > 32) 3598af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = 32; 3608af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson else 3618af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = TypeInfo.second; 362042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson } 3638af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 3648af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // Check if we need to add padding to give the field the correct 3658af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // alignment. 3668af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (RecordSize % FieldAlign + FieldSize > TypeSize) 3678af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson RecordSize = (RecordSize+FieldAlign-1) & ~(FieldAlign-1); 3688af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 36975afb585496b8c521672a6a91b8dd1838d36185aEli Friedman } else { 3708af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (FD->getType()->isIncompleteType()) { 3718af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // This must be a flexible array member; we can't directly 3728af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // query getTypeInfo about these, so we figure it out here. 3738af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // Flexible array members don't have any size, but they 3748af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // have to be aligned appropriately for their element type. 375042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson 3768af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 3778af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = AA->getAlignment(); 3788af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson else if (FieldIsPacked) 3798af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = 8; 3808af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson else { 3818af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson const ArrayType* ATy = FD->getType()->getAsArrayType(); 38298be4943e8dc4f3905629a7102668960873cf863Chris Lattner FieldAlign = getTypeAlign(ATy->getElementType()); 3838af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson } 3848af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldSize = 0; 3858af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson } else { 38698be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> FieldInfo = getTypeInfo(FD->getType()); 3878af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldSize = FieldInfo.first; 3888af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 3898af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 3908af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = AA->getAlignment(); 3918af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson else if (FieldIsPacked) 3928af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = 8; 3938af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson else 3948af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = FieldInfo.second; 3958af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson } 39675afb585496b8c521672a6a91b8dd1838d36185aEli Friedman 3978af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // Round up the current record size to the field's alignment boundary. 3988af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson RecordSize = (RecordSize+FieldAlign-1) & ~(FieldAlign-1); 3998af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson } 400464175bba1318bef7905122e9fda20cff926df78Chris Lattner 401464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Place this field at the current location. 402464175bba1318bef7905122e9fda20cff926df78Chris Lattner FieldOffsets[i] = RecordSize; 403464175bba1318bef7905122e9fda20cff926df78Chris Lattner 404464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Reserve space for this field. 405464175bba1318bef7905122e9fda20cff926df78Chris Lattner RecordSize += FieldSize; 406464175bba1318bef7905122e9fda20cff926df78Chris Lattner 407464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Remember max struct/class alignment. 408464175bba1318bef7905122e9fda20cff926df78Chris Lattner RecordAlign = std::max(RecordAlign, FieldAlign); 409464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 410464175bba1318bef7905122e9fda20cff926df78Chris Lattner 411464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Finally, round the size of the total struct up to the alignment of the 412464175bba1318bef7905122e9fda20cff926df78Chris Lattner // struct itself. 413464175bba1318bef7905122e9fda20cff926df78Chris Lattner RecordSize = (RecordSize+RecordAlign-1) & ~(RecordAlign-1); 414464175bba1318bef7905122e9fda20cff926df78Chris Lattner } else { 415464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Union layout just puts each member at the start of the record. 416464175bba1318bef7905122e9fda20cff926df78Chris Lattner for (unsigned i = 0, e = D->getNumMembers(); i != e; ++i) { 417464175bba1318bef7905122e9fda20cff926df78Chris Lattner const FieldDecl *FD = D->getMember(i); 41898be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> FieldInfo = getTypeInfo(FD->getType()); 419464175bba1318bef7905122e9fda20cff926df78Chris Lattner uint64_t FieldSize = FieldInfo.first; 420464175bba1318bef7905122e9fda20cff926df78Chris Lattner unsigned FieldAlign = FieldInfo.second; 421464175bba1318bef7905122e9fda20cff926df78Chris Lattner 4228af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // FIXME: This is X86 specific, use 32-bit alignment for long long. 4238af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (FD->getType()->isIntegerType() && FieldAlign > 32) 4248af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = 32; 4258af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 426464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Round up the current record size to the field's alignment boundary. 427464175bba1318bef7905122e9fda20cff926df78Chris Lattner RecordSize = std::max(RecordSize, FieldSize); 428464175bba1318bef7905122e9fda20cff926df78Chris Lattner 429464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Place this field at the start of the record. 430464175bba1318bef7905122e9fda20cff926df78Chris Lattner FieldOffsets[i] = 0; 431464175bba1318bef7905122e9fda20cff926df78Chris Lattner 432464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Remember max struct/class alignment. 433464175bba1318bef7905122e9fda20cff926df78Chris Lattner RecordAlign = std::max(RecordAlign, FieldAlign); 434464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 435464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 4365d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 4375d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner NewEntry->SetLayout(RecordSize, RecordAlign, FieldOffsets); 4385d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 439464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 440464175bba1318bef7905122e9fda20cff926df78Chris Lattner 441a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 442a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 443a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 444a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 445ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher LambQualType ASTContext::getASQualType(QualType T, unsigned AddressSpace) { 446f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 447f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 448f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 449f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 450f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Type's cannot have multiple ASQuals, therefore we know we only have to deal 451f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // with CVR qualifiers from here on out. 452f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(CanT.getAddressSpace() == 0 && 453f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner "Type is already address space qualified"); 454f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 455f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Check if we've already instantiated an address space qual'd type of this 456f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // type. 457ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 458f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType::Profile(ID, T.getTypePtr(), AddressSpace); 459ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 460ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (ASQualType *ASQy = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 461ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb return QualType(ASQy, 0); 462ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 463ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 464ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 465ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 466ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (!T->isCanonical()) { 467f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getASQualType(CanT, AddressSpace); 468ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 469ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // Get the new insert position for the node we care about. 470ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualType *NewIP = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos); 471ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb assert(NewIP == 0 && "Shouldn't be in the map!"); 472ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 473f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType *New = new ASQualType(T.getTypePtr(), Canonical, AddressSpace); 474ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualTypes.InsertNode(New, InsertPos); 475ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 476f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return QualType(New, T.getCVRQualifiers()); 477ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 478ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 479a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 4805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 4815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 4825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 4835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 4845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 4855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 4865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 4875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 4895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 4905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 4915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 4935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 4955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 496f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 4975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 4995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 5005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 5015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *New = new ComplexType(T, Canonical); 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 5065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 5115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 5125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 5135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 5145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 5155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 5165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 5185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 5195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 5205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 5225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 5245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 525f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 5265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 5285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 5295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 5305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *New = new PointerType(T, Canonical); 5325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 5345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 5355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getReferenceType - Return the uniqued reference to the type for a reference 5385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to the specified type. 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getReferenceType(QualType T) { 5405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 5415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 5425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 5435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 5445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 5465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ReferenceType *RT = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 5475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 5485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 5505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 5515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 5525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 553f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getReferenceType(getCanonicalType(T)); 5545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *NewIP = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 5575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 5585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *New = new ReferenceType(T, Canonical); 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceTypes.InsertNode(New, InsertPos); 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 566fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 567fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 568fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 569c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 570c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 571c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 5725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 573fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType::Profile(ID, EltTy, ArySize); 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 5767192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 5777192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 5785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 5795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 5815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 584f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 585c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 5865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 5877192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 5887192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 5897192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 593c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ConstantArrayType *New = new ConstantArrayType(EltTy, Canonical, ArySize, 594c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 5957192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 600bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 601bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 602c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 603c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 604c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 605c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 606c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 607c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 608c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayType *New = new VariableArrayType(EltTy, QualType(), NumElts, 609c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 610c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 611c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 612c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 613c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 614c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 615c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 616c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 617c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 618c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 619c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 620c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType::Profile(ID, EltTy); 621c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 622c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 623c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 624c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 625c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 626c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 627c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 628c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 629c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 630c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 631c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 632f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 6332bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 634c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 635c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 636c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 637c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 638c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 639c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman assert(NewIP == 0 && "Shouldn't be in the map!"); 6402bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 641c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 642c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *New = new IncompleteArrayType(EltTy, Canonical, 643c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 644c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 645c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 646c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 647c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 648fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 649fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 65073322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 65173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 65273322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 6535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 6545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 655f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 65673322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 66073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 669f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *New = new VectorType(vecType, NumElts, Canonical); 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 681213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 68273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 683213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 68473322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 68573322924127c873c13101b705dd823f5539ffa5fSteve Naroff 686f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 687213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 68873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 68973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 69073322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 691213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 69273322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 69373322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 69473322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 69573322924127c873c13101b705dd823f5539ffa5fSteve Naroff 69673322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 69773322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 69873322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 69973322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 700213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 70173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 70273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 70373322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 70473322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(NewIP == 0 && "Shouldn't be in the map!"); 70573322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 706213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman ExtVectorType *New = new ExtVectorType(vecType, NumElts, Canonical); 70773322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 70873322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 70973322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 71073322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 71173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 7135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 7145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionTypeNoProto(QualType ResultTy) { 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto::Profile(ID, ResultTy); 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeNoProto *FT = 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos)) 7235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 727f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionTypeNoProto(getCanonicalType(ResultTy)); 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *NewIP = 7315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos); 7325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *New = new FunctionTypeNoProto(ResultTy, Canonical); 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 73756cd7e3848c2d59ca2ec3b72d0834192edf0bcdfEli Friedman FunctionTypeNoProtos.InsertNode(New, InsertPos); 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionType(QualType ResultTy, QualType *ArgArray, 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs, bool isVariadic) { 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic); 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FTP = 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos)) 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 7575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 7605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 767f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 769f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 7705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 7715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isVariadic); 7725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *NewIP = 7755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos); 7765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FunctionTypeProto objects are not allocated with new because they have a 7805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // variable size array (for parameter types) at the end of them. 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *FTP = 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer (FunctionTypeProto*)malloc(sizeof(FunctionTypeProto) + 783942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner NumArgs*sizeof(QualType)); 7845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer new (FTP) FunctionTypeProto(ResultTy, ArgArray, NumArgs, isVariadic, 7855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Canonical); 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.InsertNode(FTP, InsertPos); 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 7895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7912ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 7922ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 7932ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas GregorQualType ASTContext::getTypeDeclType(TypeDecl *Decl) { 7942ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 7952ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 7962ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (TypedefDecl *Typedef = dyn_cast_or_null<TypedefDecl>(Decl)) 7972ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 7982ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor else if (ObjCInterfaceDecl *ObjCInterface 7992ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor = dyn_cast_or_null<ObjCInterfaceDecl>(Decl)) 8002ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 8012ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor else if (RecordDecl *Record = dyn_cast_or_null<RecordDecl>(Decl)) { 8022ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Decl->TypeForDecl = new RecordType(Record); 8032ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Types.push_back(Decl->TypeForDecl); 8042ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return QualType(Decl->TypeForDecl, 0); 8052ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor } else if (EnumDecl *Enum = dyn_cast_or_null<EnumDecl>(Decl)) { 8062ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Decl->TypeForDecl = new EnumType(Enum); 8072ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Types.push_back(Decl->TypeForDecl); 8082ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return QualType(Decl->TypeForDecl, 0); 8092ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor } else 8102ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 8112ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 8122ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 8135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 8145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 8175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 818f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 819c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Decl->TypeForDecl = new TypedefType(Type::TypeName, Decl, Canonical); 8205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 8215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 8225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 824a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 8253536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 826a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 8273536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 8283536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 829a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->TypeForDecl = new ObjCInterfaceType(Type::ObjCInterface, Decl); 8303536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 8313536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 8323536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 8333536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 83488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 83588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 83688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 83788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 83888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner return strcmp(LHS->getName(), RHS->getName()) < 0; 83988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 84088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 84188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 84288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 84388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 84488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 84588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 84688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 84788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 84888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 84988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 85088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 85188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 85288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 85388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 854065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 855065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 856a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 857a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 85888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 85988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 86088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 8614b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 862b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 8634b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 8644b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 865a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 866a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 8674b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 8684b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 8694b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 870a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 871a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek new ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 8724b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 873a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 8744b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 8754b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 8764b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 87788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 87888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 879a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedIdType(QualType idType, 880a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, 881c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 88288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 88388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 88488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 885c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 886a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 887c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 888c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 889a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 890a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 891c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 892c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 893c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 894d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian QualType Canonical; 895d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian if (!idType->isCanonical()) { 896f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getObjCQualifiedIdType(getCanonicalType(idType), 897d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian Protocols, NumProtocols); 898a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType *NewQT = 899a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos); 900d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian assert(NewQT == 0 && "Shouldn't be in the map!"); 901d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian } 902d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian 903a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType *QType = 904a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek new ObjCQualifiedIdType(Canonical, Protocols, NumProtocols); 905c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 906a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 907c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 908c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 909c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 9109752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 9119752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 9129752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 9139752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 9149752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 9158d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 916f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 9179752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfExpr *toe = new TypeOfExpr(tofExpr, Canonical); 9189752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 9199752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 920d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 921d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 9229752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 9239752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 9249752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 9259752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 9269752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 927d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 928f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 9299752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfType *tot = new TypeOfType(tofType, Canonical); 9309752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 9319752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 932d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 933d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 937d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 9382ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 9445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // On Darwin, size_t is defined as a "long unsigned int". 9465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: should derive from "Target". 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return UnsignedLongTy; 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 950fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// getWcharType - Return the unique type for "wchar_t" (C99 7.17), the 951fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 952fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 953fd888a581d6d329f5b447c8ff4d37cf396315993Eli FriedmanQualType ASTContext::getWcharType() const { 954fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman // On Darwin, wchar_t is defined as a "int". 955fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman // FIXME: should derive from "Target". 956fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman return IntTy; 957fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 958fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 9598b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 9608b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 9618b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 9628b9023ba35a86838789e2c9034a6128728c547aaChris Lattner // On Darwin, ptrdiff_t is defined as a "int". This seems like a bug... 9638b9023ba35a86838789e2c9034a6128728c547aaChris Lattner // FIXME: should derive from "Target". 9648b9023ba35a86838789e2c9034a6128728c547aaChris Lattner return IntTy; 9658b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 9668b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 967e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 968e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 969e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 970e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 97177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 97277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 97377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 97477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 97577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 97677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 97777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 97877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 97977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner return QualType(CanType.getTypePtr(), 98077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner T.getCVRQualifiers() | CanType.getCVRQualifiers()); 98177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 98277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 98377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 984e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 985e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 986e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 987e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 988e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 989e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 990e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 991e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // Handle the common case where typedefs are not involved directly. 992e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner QualType EltTy; 993e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner unsigned ArrayQuals = 0; 994e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner unsigned PointerQuals = 0; 995e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner if (ArrayType *AT = dyn_cast<ArrayType>(Ty)) { 996e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // Since T "isa" an array type, it could not have had an address space 997e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // qualifier, just CVR qualifiers. The properly qualified element pointer 998e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // gets the union of the CVR qualifiers from the element and the array, and 999e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // keeps any address space qualifier on the element type if present. 1000e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner EltTy = AT->getElementType(); 1001e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner ArrayQuals = Ty.getCVRQualifiers(); 1002e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner PointerQuals = AT->getIndexTypeQualifier(); 1003e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner } else { 1004e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // Otherwise, we have an ASQualType or a typedef, etc. Make sure we don't 1005e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // lose qualifiers when dealing with typedefs. Example: 1006e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // typedef int arr[10]; 1007e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // void test2() { 1008e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // const arr b; 1009e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // b[4] = 1; 1010e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // } 1011e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // 1012e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // The decayed type of b is "const int*" even though the element type of the 1013e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // array is "int". 1014f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanTy = getCanonicalType(Ty); 1015e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner const ArrayType *PrettyArrayType = Ty->getAsArrayType(); 1016e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1017e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1018e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1019e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // typedefs in the element type of the array. 1020e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner EltTy = PrettyArrayType->getElementType(); 1021e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1022e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // If the array was address-space qualifier, make sure to ASQual the element 1023e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // type. We can just grab the address space from the canonical type. 1024e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner if (unsigned AS = CanTy.getAddressSpace()) 1025e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner EltTy = getASQualType(EltTy, AS); 1026e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1027e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // To properly handle [multiple levels of] typedefs, typeof's etc, we take 1028e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // the CVR qualifiers directly from the canonical type, which is guaranteed 1029e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // to have the full set unioned together. 1030e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner ArrayQuals = CanTy.getCVRQualifiers(); 1031e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner PointerQuals = PrettyArrayType->getIndexTypeQualifier(); 1032e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner } 1033e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1034d9654557562e77564309f6b83b493a9a424e008aChris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1035d9654557562e77564309f6b83b493a9a424e008aChris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1036d9654557562e77564309f6b83b493a9a424e008aChris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1037e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner EltTy = EltTy.getQualifiedType(ArrayQuals | EltTy.getCVRQualifiers()); 1038e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1039e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner QualType PtrTy = getPointerType(EltTy); 1040e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1041e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1042e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner PtrTy = PtrTy.getQualifiedType(PointerQuals); 1043e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1044e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner return PtrTy; 1045e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1046e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 10475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 10485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1049a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1050ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1052a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1053ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1054a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 10555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 10565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 10575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 10585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1061716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1062716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1063716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1064716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 10651361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 10661361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 10671361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 10681361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 10691361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1070716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1071f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1072f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1073f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1074f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1075f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 10761361b11066239ea15764a2a844405352d87296b3Chris Lattner 10771361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 10781361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 10791361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 10801361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 10811361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 10821361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 10877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 10887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 10897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1090a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1091a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1092a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1093a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1094a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1095fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1096a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1097fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1098fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1101f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1102f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1103f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1104f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1105f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1106f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1107f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1108f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1109f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 11107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 11117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 11127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 11137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 11147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 11157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 11167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 11177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 11187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 11197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 11207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 11217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 11227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 11237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 11247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 11257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 11267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 11277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 11287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 11297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1130f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1131f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1132f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 11337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 11347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 11357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 11367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1137f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1138f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 11397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1141f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1142f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 11457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 11487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 11497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 11507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 11517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 11527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 11537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 11547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 11557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 11567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 11577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 11587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 11597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 11607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 11617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 11627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 11637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 11647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 11657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 11667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 11697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 11707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 11717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 117371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 117471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 117571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 117671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 11776c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 1178ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis RecordDecl::Create(*this, Decl::Struct, TUDecl, SourceLocation(), 1179c63e660882ff93841fa234d70ef6757038302b92Chris Lattner &Idents.get("NSConstantString"), 0); 1180f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 118171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 118271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 118371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1184f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1185f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 118671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1187f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 118871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1189f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 119071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // Create fields 1191f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldDecl *FieldDecls[4]; 119271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 1193f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson for (unsigned i = 0; i < 4; ++i) 1194b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner FieldDecls[i] = FieldDecl::Create(*this, SourceLocation(), 0, 11958e25d8681822d8094bfeb97b2239363552548171Chris Lattner FieldTypes[i]); 119671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 119771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson CFConstantStringTypeDecl->defineBody(FieldDecls, 4); 119871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 119971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 120071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 12018467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1202b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1203e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1204e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 12052d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1206e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 12072d99833e8c956775f2183601cd120b65b569c867Chris Lattner return !strcmp(TT->getDecl()->getName(), "BOOL"); 120885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 120985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 121085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 121185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1212a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 121333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1214a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 121598be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 121633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 121733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 121833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 121998be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 122033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 122133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 122298be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 122398be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 122433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 122533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1226a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 122733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1228a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForMethodDecl(ObjCMethodDecl *Decl, 122933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian std::string& S) 123033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian{ 1231ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1232a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 123333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 12347d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(Decl->getResultType(), S, EncodingRecordTypes); 123533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 123633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 123733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 123833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 123998be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 124033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 124133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 124233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 124333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 124433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 124533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1246a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1247a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 124833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 124933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 125033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 125133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 125233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 125333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 125433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 125533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 125633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 125733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1258ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 125933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 1260a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier( 1261a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->getParamDecl(i)->getObjCDeclQualifier(), S); 12627d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(PType, S, EncodingRecordTypes); 126333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1264a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 126533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 126633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 126733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 12687d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 12697d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian llvm::SmallVector<const RecordType *, 8> &ERType) const 127085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson{ 1271e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // FIXME: This currently doesn't encode: 1272e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // @ An object (whether statically typed or typed id) 1273e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // # A class object (Class) 1274e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // : A method selector (SEL) 1275e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // {name=type...} A structure 1276e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // (name=type...) A union 1277e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // bnum A bit field of num bits 1278e8c49533521c40643653f943d47229e62d277f88Anders Carlsson 1279e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 128085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson char encoding; 128185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson switch (BT->getKind()) { 12827176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner default: assert(0 && "Unhandled builtin type kind"); 12837176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 12847176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 128585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_U: 12867176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 12877176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 12887176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 12897176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULong: encoding = 'L'; break; 12907176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 129185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_S: 12927176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 12937176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Short: encoding = 's'; break; 12947176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 12957176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Long: encoding = 'l'; break; 12967176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 12977176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 12987176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 12997176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 130085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 130185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 130285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += encoding; 1303c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1304a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1305c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // Treat id<P...> same as 'id' for encoding purposes. 13067d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian return getObjCEncodingForType(getObjCIdType(), S, ERType); 1307c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1308c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1309c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 131085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 1311a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (isObjCIdType(PointeeTy) || PointeeTy->isObjCInterfaceType()) { 1312c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 1313c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 1314a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 13158baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 13168baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1317a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 13188baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 13198baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1320c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 132185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 132285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 132385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 132485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 1325e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 132685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 132785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 132885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 132985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 133085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 133185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 13327d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(PT->getPointeeType(), S, ERType); 1333e8c49533521c40643653f943d47229e62d277f88Anders Carlsson } else if (const ArrayType *AT = T->getAsArrayType()) { 133485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 133585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 133685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 133785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 133885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 133985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 134085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 13417d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(AT->getElementType(), S, ERType); 134285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 1343c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 1344c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 13456de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 13466de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian RecordDecl *RDecl= RTy->getDecl(); 13476de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += '{'; 13486de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += RDecl->getName(); 13497d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian bool found = false; 13507d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (unsigned i = 0, e = ERType.size(); i != e; ++i) 13517d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian if (ERType[i] == RTy) { 13527d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian found = true; 13537d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian break; 13547d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 13557d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian if (!found) { 13567d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian ERType.push_back(RTy); 13577d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 13587d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (int i = 0; i < RDecl->getNumMembers(); i++) { 13597d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian FieldDecl *field = RDecl->getMember(i); 13607d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(field->getType(), S, ERType); 13617d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 13627d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian assert(ERType.back() == RTy && "Record Type stack mismatch."); 13637d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian ERType.pop_back(); 13646de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 13656de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += '}'; 13665e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 13675e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff S += 'i'; 136885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } else 1369f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 137085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 137185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1372a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 1373ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 1374ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 1375ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 1376ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 1377ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 1378ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 1379ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 1380ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 1381ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 1382ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 1383ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 1384ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 1385ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 1386ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 1387ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 1388b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 1389b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 1390b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 1391b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1392b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 1393b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 1394b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1395a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 13967e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 1397a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCIdType.isNull() && "'id' type already set!"); 13987e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1399a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 14007e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 14017e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 14027e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 14037e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(ptr && "'id' incorrectly typed"); 14047e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 14057e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(rec && "'id' incorrectly typed"); 14067e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 14077e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 14087e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1409a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 1410b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 1411a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCSelType.isNull() && "'SEL' type already set!"); 1412b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1413a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 1414b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1415b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 1416b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 1417b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(ptr && "'SEL' incorrectly typed"); 1418b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 1419b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(rec && "'SEL' incorrectly typed"); 1420b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 1421b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 1422b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1423a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 1424390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 1425a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCProtoType.isNull() && "'Protocol' type already set!"); 1426a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 1427390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 1428390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 1429a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 14308baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 1431a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCClassType.isNull() && "'Class' type already set!"); 14328baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1433a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 14348baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 14358baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 14368baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 14378baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 14388baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 14398baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 14408baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 14418baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 14428baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1443a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 1444a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 14452198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 14462198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1447a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 14482198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 14492198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 14506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 14516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 14526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 1453770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 145478eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner/// C99 6.2.7p1: If both are complete types, then the following additional 145578eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner/// requirements apply. 145678eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner/// FIXME (handle compatibility across source files). 145778eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattnerstatic bool areCompatTagTypes(TagType *LHS, TagType *RHS, 145878eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner const ASTContext &C) { 1459ab373097926c4f24dd653e8b9aebcbf2eff17881Steve Naroff // "Class" and "id" are compatible built-in structure types. 146078eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner if (C.isObjCIdType(QualType(LHS, 0)) && C.isObjCClassType(QualType(RHS, 0)) || 146178eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner C.isObjCClassType(QualType(LHS, 0)) && C.isObjCIdType(QualType(RHS, 0))) 1462ab373097926c4f24dd653e8b9aebcbf2eff17881Steve Naroff return true; 1463d57405250498a1b5f23c97c6e089318f6f3eefd7Eli Friedman 146478eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner // Within a translation unit a tag type is only compatible with itself. Self 146578eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner // equality is already handled by the time we get here. 146678eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner assert(LHS != RHS && "Self equality not handled!"); 146778eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner return false; 1468ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1469ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1470ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroffbool ASTContext::pointerTypesAreCompatible(QualType lhs, QualType rhs) { 1471ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // C99 6.7.5.1p2: For two pointer types to be compatible, both shall be 1472ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // identically qualified and both shall be pointers to compatible types. 1473f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner if (lhs.getCVRQualifiers() != rhs.getCVRQualifiers() || 1474f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner lhs.getAddressSpace() != rhs.getAddressSpace()) 1475ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1476ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1477ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff QualType ltype = cast<PointerType>(lhs.getCanonicalType())->getPointeeType(); 1478ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff QualType rtype = cast<PointerType>(rhs.getCanonicalType())->getPointeeType(); 1479ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1480ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return typesAreCompatible(ltype, rtype); 1481ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1482ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1483ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroffbool ASTContext::functionTypesAreCompatible(QualType lhs, QualType rhs) { 1484ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionType *lbase = cast<FunctionType>(lhs.getCanonicalType()); 1485ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionType *rbase = cast<FunctionType>(rhs.getCanonicalType()); 1486ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 1487ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 1488ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1489ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // first check the return types (common between C99 and K&R). 1490ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (!typesAreCompatible(lbase->getResultType(), rbase->getResultType())) 1491ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1492ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1493ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (lproto && rproto) { // two C99 style function prototypes 1494ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff unsigned lproto_nargs = lproto->getNumArgs(); 1495ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff unsigned rproto_nargs = rproto->getNumArgs(); 1496ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1497ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (lproto_nargs != rproto_nargs) 1498ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1499ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1500ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // both prototypes have the same number of arguments. 1501ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if ((lproto->isVariadic() && !rproto->isVariadic()) || 1502ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff (rproto->isVariadic() && !lproto->isVariadic())) 1503ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1504ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1505ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // The use of ellipsis agree...now check the argument types. 1506ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff for (unsigned i = 0; i < lproto_nargs; i++) 1507f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff // C99 6.7.5.3p15: ...and each parameter declared with qualified type 1508f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff // is taken as having the unqualified version of it's declared type. 1509ba03eda1599dd89da935a2b46da10659afe46addSteve Naroff if (!typesAreCompatible(lproto->getArgType(i).getUnqualifiedType(), 1510f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff rproto->getArgType(i).getUnqualifiedType())) 1511ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1512ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1513ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 15145426bf6456a5aeac416a9150de157904d101c819Chris Lattner 1515ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (!lproto && !rproto) // two K&R style function decls, nothing to do. 1516ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1517ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1518ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // we have a mixture of K&R style with C99 prototypes 1519ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionTypeProto *proto = lproto ? lproto : rproto; 1520ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (proto->isVariadic()) 1521ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1522ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1523ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // FIXME: Each parameter type T in the prototype must be compatible with the 1524ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // type resulting from applying the usual argument conversions to T. 1525ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1526ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1527ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1528acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner// C99 6.7.5.2p6 1529acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattnerstatic bool areCompatArrayTypes(ArrayType *LHS, ArrayType *RHS, ASTContext &C) { 1530acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner // Constant arrays must be the same size to be compatible. 1531acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner if (const ConstantArrayType* LCAT = dyn_cast<ConstantArrayType>(LHS)) 1532acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner if (const ConstantArrayType* RCAT = dyn_cast<ConstantArrayType>(RHS)) 1533acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner if (RCAT->getSize() != LCAT->getSize()) 1534acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner return false; 15354e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman 15368c7bbb5347a74f7f470231a149dd3455fbe0bcc6Chris Lattner // Compatible arrays must have compatible element types 15378c7bbb5347a74f7f470231a149dd3455fbe0bcc6Chris Lattner return C.typesAreCompatible(LHS->getElementType(), RHS->getElementType()); 1538ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1539ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 15406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 15416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 15426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 15436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 15446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 15456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 15466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 15476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 15486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 15496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatObjCInterfaces - Return true if the two interface types are 15506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 15516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 15526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 15535426bf6456a5aeac416a9150de157904d101c819Chris Lattnerstatic bool areCompatObjCInterfaces(const ObjCInterfaceType *LHS, 15545426bf6456a5aeac416a9150de157904d101c819Chris Lattner const ObjCInterfaceType *RHS) { 15556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 15566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 15576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 15586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 15596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 15606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 15616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 15626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 15636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 15646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 15656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 15666ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 15676ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 15686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 15696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 15706ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 15716ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 15726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 15736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(); 15746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHSP->qual_end(); 15756ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(); 15766ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHSP->qual_end(); 15776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 15786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 15796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 15806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 15816ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 15826ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 15836ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 15846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner while (RHSPI != RHSPE) { 15856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 15866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 15876ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (RHSProto != LHSProto) 15886ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner continue; 15896ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 15906ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Otherwise, the RHS does have this element. 15916ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ++LHSPI; 15926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (LHSPI == LHSPE) 15936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // All protocols in LHS exist in RHS. 15946ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 15956ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHSProto = *LHSPI; 15966ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner } 15976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 15986ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 15996ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 16006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 16016ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 16026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 1603ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 1604ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 1605ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 1606ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 1607c4e405996217f4be20f73186da53b23b5c4783dcChris Lattnerbool ASTContext::typesAreCompatible(QualType LHS_NC, QualType RHS_NC) { 1608c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner QualType LHS = LHS_NC.getCanonicalType(); 1609c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner QualType RHS = RHS_NC.getCanonicalType(); 1610988ee6ef540d1203cf4aa52971f3c135c796bdf7Chris Lattner 161143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 161243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 161343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 161443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 1615c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (ReferenceType *RT = dyn_cast<ReferenceType>(LHS)) 1616c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 1617c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (ReferenceType *RT = dyn_cast<ReferenceType>(RHS)) 1618c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 16191adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 1620f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 1621f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner if (LHS == RHS) 1622f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner return true; 1623f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 1624f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If qualifiers differ, the types are different. 1625a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner unsigned LHSAS = LHS.getAddressSpace(), RHSAS = RHS.getAddressSpace(); 1626a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHS.getCVRQualifiers() != RHS.getCVRQualifiers() || LHSAS != RHSAS) 1627f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner return false; 1628a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 1629a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner // Strip off ASQual's if present. 1630a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSAS) { 1631a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHS = LHS.getUnqualifiedType(); 1632a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHS = RHS.getUnqualifiedType(); 1633a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner } 1634f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 1635c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner Type::TypeClass LHSClass = LHS->getTypeClass(); 1636c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner Type::TypeClass RHSClass = RHS->getTypeClass(); 16371adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 16381adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 16391adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 16401adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 16411adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 16424c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 16434c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 1644a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 1645a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 1646a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 1647a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 1648a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 1649213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 1650213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 1651213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 1652ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1653b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 1654b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 1655b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 1656b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner 1657a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner // If the canonical type classes don't match. 16581adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass != RHSClass) { 1659b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // ID is compatible with all interface types. 1660b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (isa<ObjCInterfaceType>(LHS)) 1661b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner return isObjCIdType(RHS); 1662b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (isa<ObjCInterfaceType>(RHS)) 1663b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner return isObjCIdType(LHS); 16646e26f5db807a75713dbf6e34cf93da6fffe18cc3Chris Lattner 16651adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 16661adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 1667c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (LHS->isEnumeralType() && RHS->isIntegralType()) { 1668c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner EnumDecl* EDecl = cast<EnumType>(LHS)->getDecl(); 1669c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return EDecl->getIntegerType() == RHS; 1670bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 1671c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (RHS->isEnumeralType() && LHS->isIntegralType()) { 1672c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner EnumDecl* EDecl = cast<EnumType>(RHS)->getDecl(); 1673c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return EDecl->getIntegerType() == LHS; 1674bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 16751adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 1676ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1677ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 1678a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 16794a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 16801adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 1681a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::ASQual: 1682a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::FunctionProto: 1683a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::VariableArray: 1684a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::IncompleteArray: 1685a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::Reference: 1686b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner case Type::ObjCQualifiedInterface: 1687a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner assert(0 && "Canonicalized away above"); 16881adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 1689c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return pointerTypesAreCompatible(LHS, RHS); 16901adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 1691acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner return areCompatArrayTypes(cast<ArrayType>(LHS), cast<ArrayType>(RHS), 1692acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner *this); 16931adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 1694c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return functionTypesAreCompatible(LHS, RHS); 16951adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Tagged: // handle structures, unions 169678eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner return areCompatTagTypes(cast<TagType>(LHS), cast<TagType>(RHS), *this); 16971adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 16983cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 16993cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner return false; 17003cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 17013cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner return areCompatVectorTypes(cast<VectorType>(LHS), cast<VectorType>(RHS)); 17021adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 1703b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner return areCompatObjCInterfaces(cast<ObjCInterfaceType>(LHS), 1704b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner cast<ObjCInterfaceType>(RHS)); 17051adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 17061adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 1707ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 1708ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; // should never get here... 1709ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 17107192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 17115426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 17125426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 17135426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 17145426bf6456a5aeac416a9150de157904d101c819Chris Lattner 17157192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 17167192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 17175451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 17185451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 17195451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 17205451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 17217192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 1722fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 1723fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 1724a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 1725a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 172603ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 172703ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 172803ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 1729a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 1730ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 1731ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 1732a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 17337192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 17347192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 17350f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 1736fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 1737fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 1738fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 1739fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 17400ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 1741fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 1742fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 1743fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek ASTContext* A = new ASTContext(SM,t,idents,sels,size_reserve); 1744fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 174503ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 174603ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 17470ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 1748ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 1749ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 1750a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 1751fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 1752fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 1753fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 1754