ASTContext.cpp revision a36a61f218b9f7a97f2c0f511e0b29eb42e8f78b
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 } 2035c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb case Type::OCUVector: 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 // FIXME: need to use TargetInfo to derive the target specific sizes. This 215a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner // implementation will suffice for play with vector support. 216a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 217692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 218d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 219d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 2206f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 2219e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 2229e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 2236f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 224692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 225692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 226692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 2276f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 2289e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 2299e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 2306f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 231692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 2326f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 2339e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 2349e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 2356f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 236692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 2376f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 2389e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 2399e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 2406f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 241692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 2426f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 2439e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 2449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 2456f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 246692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 2476f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 2489e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 2499e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 2506f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2516f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 2529e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 2539e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 2546f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2556f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 2569e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getDoubleWidth(); 2579e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getDoubleAlign(); 2586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2596f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 2609e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 2619e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 2626f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 263a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 264bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 265ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb case Type::ASQual: 26698be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 26798be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 26898be4943e8dc4f3905629a7102668960873cf863Chris Lattner return getTypeInfo(QualType(cast<ASQualType>(T)->getBaseType(), 0)); 269a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 2709e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getPointerWidth(0); 271f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 2726f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 273f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 274f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 2759e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getPointerWidth(AS); 276f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 277f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 278f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 279a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner case Type::Reference: 2807ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 2815d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 2826f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 2836f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 284bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 2855d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 2865d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 2875d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 2885d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 2895d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 29098be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 2919e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 2925d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 2935d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 2945d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 2957176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case Type::Tagged: { 2967176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner if (EnumType *ET = dyn_cast<EnumType>(cast<TagType>(T))) 2977176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 2987176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 2997176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner RecordType *RT = cast<RecordType>(T); 3007176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 3017176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 3027176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 303dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 304a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 3057176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 306d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 307464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 3089e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 309a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 310a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 31188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 312464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 313464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 31498be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 315464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(D->isDefinition() && "Cannot get layout of forward declarations!"); 316464175bba1318bef7905122e9fda20cff926df78Chris Lattner 317464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 31888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 319464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 320464175bba1318bef7905122e9fda20cff926df78Chris Lattner 32188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 32288a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 32388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 324464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 325464175bba1318bef7905122e9fda20cff926df78Chris Lattner 326464175bba1318bef7905122e9fda20cff926df78Chris Lattner uint64_t *FieldOffsets = new uint64_t[D->getNumMembers()]; 327464175bba1318bef7905122e9fda20cff926df78Chris Lattner uint64_t RecordSize = 0; 328464175bba1318bef7905122e9fda20cff926df78Chris Lattner unsigned RecordAlign = 8; // Default alignment = 1 byte = 8 bits. 329464175bba1318bef7905122e9fda20cff926df78Chris Lattner 330464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (D->getKind() != Decl::Union) { 331042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 332042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson RecordAlign = std::max(RecordAlign, AA->getAlignment()); 333042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson 3346a24acbb3dbb3bea9426716bee6ad6023ad15f3fAnders Carlsson bool StructIsPacked = D->getAttr<PackedAttr>(); 3356a24acbb3dbb3bea9426716bee6ad6023ad15f3fAnders Carlsson 336464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Layout each field, for now, just sequentially, respecting alignment. In 337464175bba1318bef7905122e9fda20cff926df78Chris Lattner // the future, this will need to be tweakable by targets. 338464175bba1318bef7905122e9fda20cff926df78Chris Lattner for (unsigned i = 0, e = D->getNumMembers(); i != e; ++i) { 339464175bba1318bef7905122e9fda20cff926df78Chris Lattner const FieldDecl *FD = D->getMember(i); 3406a24acbb3dbb3bea9426716bee6ad6023ad15f3fAnders Carlsson bool FieldIsPacked = StructIsPacked || FD->getAttr<PackedAttr>(); 34175afb585496b8c521672a6a91b8dd1838d36185aEli Friedman uint64_t FieldSize; 34275afb585496b8c521672a6a91b8dd1838d36185aEli Friedman unsigned FieldAlign; 3438af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 3448af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (const Expr *BitWidthExpr = FD->getBitWidth()) { 3458af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson llvm::APSInt I(32); 3468af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson bool BitWidthIsICE = 3478af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson BitWidthExpr->isIntegerConstantExpr(I, *this); 3488af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson assert (BitWidthIsICE && "Invalid BitField size expression"); 3498af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldSize = I.getZExtValue(); 3508af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 35198be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> TypeInfo = getTypeInfo(FD->getType()); 3528af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson uint64_t TypeSize = TypeInfo.first; 353042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson 354042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 355042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson FieldAlign = AA->getAlignment(); 356042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson else if (FieldIsPacked) 357042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson FieldAlign = 8; 358042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson else { 3598af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // FIXME: This is X86 specific, use 32-bit alignment for long long. 3608af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (FD->getType()->isIntegerType() && TypeInfo.second > 32) 3618af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = 32; 3628af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson else 3638af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = TypeInfo.second; 364042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson } 3658af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 3668af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // Check if we need to add padding to give the field the correct 3678af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // alignment. 3688af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (RecordSize % FieldAlign + FieldSize > TypeSize) 3698af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson RecordSize = (RecordSize+FieldAlign-1) & ~(FieldAlign-1); 3708af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 37175afb585496b8c521672a6a91b8dd1838d36185aEli Friedman } else { 3728af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (FD->getType()->isIncompleteType()) { 3738af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // This must be a flexible array member; we can't directly 3748af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // query getTypeInfo about these, so we figure it out here. 3758af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // Flexible array members don't have any size, but they 3768af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // have to be aligned appropriately for their element type. 377042c4e7e9f0b54104f4f2e098c028aa8247b6bedAnders Carlsson 3788af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 3798af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = AA->getAlignment(); 3808af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson else if (FieldIsPacked) 3818af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = 8; 3828af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson else { 3838af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson const ArrayType* ATy = FD->getType()->getAsArrayType(); 38498be4943e8dc4f3905629a7102668960873cf863Chris Lattner FieldAlign = getTypeAlign(ATy->getElementType()); 3858af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson } 3868af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldSize = 0; 3878af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson } else { 38898be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> FieldInfo = getTypeInfo(FD->getType()); 3898af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldSize = FieldInfo.first; 3908af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 3918af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 3928af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = AA->getAlignment(); 3938af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson else if (FieldIsPacked) 3948af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = 8; 3958af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson else 3968af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = FieldInfo.second; 3978af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson } 39875afb585496b8c521672a6a91b8dd1838d36185aEli Friedman 3998af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // Round up the current record size to the field's alignment boundary. 4008af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson RecordSize = (RecordSize+FieldAlign-1) & ~(FieldAlign-1); 4018af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson } 402464175bba1318bef7905122e9fda20cff926df78Chris Lattner 403464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Place this field at the current location. 404464175bba1318bef7905122e9fda20cff926df78Chris Lattner FieldOffsets[i] = RecordSize; 405464175bba1318bef7905122e9fda20cff926df78Chris Lattner 406464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Reserve space for this field. 407464175bba1318bef7905122e9fda20cff926df78Chris Lattner RecordSize += FieldSize; 408464175bba1318bef7905122e9fda20cff926df78Chris Lattner 409464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Remember max struct/class alignment. 410464175bba1318bef7905122e9fda20cff926df78Chris Lattner RecordAlign = std::max(RecordAlign, FieldAlign); 411464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 412464175bba1318bef7905122e9fda20cff926df78Chris Lattner 413464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Finally, round the size of the total struct up to the alignment of the 414464175bba1318bef7905122e9fda20cff926df78Chris Lattner // struct itself. 415464175bba1318bef7905122e9fda20cff926df78Chris Lattner RecordSize = (RecordSize+RecordAlign-1) & ~(RecordAlign-1); 416464175bba1318bef7905122e9fda20cff926df78Chris Lattner } else { 417464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Union layout just puts each member at the start of the record. 418464175bba1318bef7905122e9fda20cff926df78Chris Lattner for (unsigned i = 0, e = D->getNumMembers(); i != e; ++i) { 419464175bba1318bef7905122e9fda20cff926df78Chris Lattner const FieldDecl *FD = D->getMember(i); 42098be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> FieldInfo = getTypeInfo(FD->getType()); 421464175bba1318bef7905122e9fda20cff926df78Chris Lattner uint64_t FieldSize = FieldInfo.first; 422464175bba1318bef7905122e9fda20cff926df78Chris Lattner unsigned FieldAlign = FieldInfo.second; 423464175bba1318bef7905122e9fda20cff926df78Chris Lattner 4248af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson // FIXME: This is X86 specific, use 32-bit alignment for long long. 4258af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson if (FD->getType()->isIntegerType() && FieldAlign > 32) 4268af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson FieldAlign = 32; 4278af226a62dd9bb4a33bb86a8265532bbd75d76fcAnders Carlsson 428464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Round up the current record size to the field's alignment boundary. 429464175bba1318bef7905122e9fda20cff926df78Chris Lattner RecordSize = std::max(RecordSize, FieldSize); 430464175bba1318bef7905122e9fda20cff926df78Chris Lattner 431464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Place this field at the start of the record. 432464175bba1318bef7905122e9fda20cff926df78Chris Lattner FieldOffsets[i] = 0; 433464175bba1318bef7905122e9fda20cff926df78Chris Lattner 434464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Remember max struct/class alignment. 435464175bba1318bef7905122e9fda20cff926df78Chris Lattner RecordAlign = std::max(RecordAlign, FieldAlign); 436464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 437464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 4385d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 4395d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner NewEntry->SetLayout(RecordSize, RecordAlign, FieldOffsets); 4405d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 441464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 442464175bba1318bef7905122e9fda20cff926df78Chris Lattner 443a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 444a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 445a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 446a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 447ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher LambQualType ASTContext::getASQualType(QualType T, unsigned AddressSpace) { 448f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 449f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 450f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 451f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 452f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Type's cannot have multiple ASQuals, therefore we know we only have to deal 453f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // with CVR qualifiers from here on out. 454f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(CanT.getAddressSpace() == 0 && 455f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner "Type is already address space qualified"); 456f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 457f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Check if we've already instantiated an address space qual'd type of this 458f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // type. 459ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 460f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType::Profile(ID, T.getTypePtr(), AddressSpace); 461ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 462ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (ASQualType *ASQy = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 463ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb return QualType(ASQy, 0); 464ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 465ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 466ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 467ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 468ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (!T->isCanonical()) { 469f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getASQualType(CanT, AddressSpace); 470ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 471ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // Get the new insert position for the node we care about. 472ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualType *NewIP = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos); 473ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb assert(NewIP == 0 && "Shouldn't be in the map!"); 474ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 475f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType *New = new ASQualType(T.getTypePtr(), Canonical, AddressSpace); 476ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualTypes.InsertNode(New, InsertPos); 477ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 478f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return QualType(New, T.getCVRQualifiers()); 479ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 480ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 481a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 4825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 4835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 4845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 4855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 4865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 4875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 4885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 4895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 4915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 4925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 4935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 4955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 4965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 4975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 498f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 4995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 5015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 5025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *New = new ComplexType(T, Canonical); 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 5065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 5125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 5135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 5145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 5155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 5165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 5175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 5185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 5205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 5215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 5225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 5245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 5255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 5265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 527f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 5285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 5305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 5315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 5325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *New = new PointerType(T, Canonical); 5345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 5355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 5365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 5375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getReferenceType - Return the uniqued reference to the type for a reference 5405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to the specified type. 5415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getReferenceType(QualType T) { 5425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 5435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 5445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 5455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 5465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 5485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ReferenceType *RT = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 5495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 5505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 5525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 5535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 5545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 555f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getReferenceType(getCanonicalType(T)); 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 5585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *NewIP = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 5595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *New = new ReferenceType(T, Canonical); 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceTypes.InsertNode(New, InsertPos); 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 5665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 568fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 569fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 570fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 571c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 572c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 573c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 575fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType::Profile(ID, EltTy, ArySize); 5765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 5787192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 5797192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 5805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 5815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 5845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 586f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 587c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 5897192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 5907192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 5917192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 595c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ConstantArrayType *New = new ConstantArrayType(EltTy, Canonical, ArySize, 596c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 5977192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 602bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 603bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 604c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 605c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 606c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 607c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 608c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 609c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 610c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayType *New = new VariableArrayType(EltTy, QualType(), NumElts, 611c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 612c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 613c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 614c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 615c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 616c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 617c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 618c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 619c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 620c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 621c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 622c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType::Profile(ID, EltTy); 623c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 624c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 625c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 626c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 627c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 628c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 629c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 630c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 631c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 632c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 633c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 634f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 6352bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 636c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 637c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 638c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 639c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 640c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 641c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman assert(NewIP == 0 && "Shouldn't be in the map!"); 6422bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 643c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 644c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *New = new IncompleteArrayType(EltTy, Canonical, 645c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 646c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 647c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 648c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 649c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 650fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 651fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 65273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 65373322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 65473322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 6555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 657f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 65873322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 66273322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 6655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 671f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 6725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *New = new VectorType(vecType, NumElts, Canonical); 6785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 6795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 68373322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getOCUVectorType - Return the unique reference to an OCU vector type of 68473322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 68573322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getOCUVectorType(QualType vecType, unsigned NumElts) { 68673322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 68773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 688f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 68973322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getOCUVectorType(): Expecting a built-in type"); 69073322924127c873c13101b705dd823f5539ffa5fSteve Naroff 69173322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 69273322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 69373322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::OCUVector); 69473322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 69573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 69673322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 69773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 69873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 69973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 70073322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 70173322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 702f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getOCUVectorType(getCanonicalType(vecType), NumElts); 70373322924127c873c13101b705dd823f5539ffa5fSteve Naroff 70473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 70573322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 70673322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(NewIP == 0 && "Shouldn't be in the map!"); 70773322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 70873322924127c873c13101b705dd823f5539ffa5fSteve Naroff OCUVectorType *New = new OCUVectorType(vecType, NumElts, Canonical); 70973322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 71073322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 71173322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 71273322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 71373322924127c873c13101b705dd823f5539ffa5fSteve Naroff 7145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionTypeNoProto(QualType ResultTy) { 7175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto::Profile(ID, ResultTy); 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeNoProto *FT = 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos)) 7255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 7265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 729f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionTypeNoProto(getCanonicalType(ResultTy)); 7305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *NewIP = 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos); 7345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *New = new FunctionTypeNoProto(ResultTy, Canonical); 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 73956cd7e3848c2d59ca2ec3b72d0834192edf0bcdfEli Friedman FunctionTypeNoProtos.InsertNode(New, InsertPos); 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionType(QualType ResultTy, QualType *ArgArray, 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs, bool isVariadic) { 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic); 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FTP = 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos)) 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 7605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 7675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 769f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 7705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 771f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 7725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 7735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isVariadic); 7745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *NewIP = 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos); 7785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FunctionTypeProto objects are not allocated with new because they have a 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // variable size array (for parameter types) at the end of them. 7835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *FTP = 7845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer (FunctionTypeProto*)malloc(sizeof(FunctionTypeProto) + 785942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner NumArgs*sizeof(QualType)); 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer new (FTP) FunctionTypeProto(ResultTy, ArgArray, NumArgs, isVariadic, 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Canonical); 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 7895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.InsertNode(FTP, InsertPos); 7905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 7915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 7945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 7955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 7965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 7975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 798f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 799c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Decl->TypeForDecl = new TypedefType(Type::TypeName, Decl, Canonical); 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 8015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 8025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 804a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 8053536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 806a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 8073536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 8083536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 809a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->TypeForDecl = new ObjCInterfaceType(Type::ObjCInterface, Decl); 8103536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 8113536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 8123536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 8133536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 81488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 81588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 81688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 81788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 81888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner return strcmp(LHS->getName(), RHS->getName()) < 0; 81988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 82088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 82188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 82288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 82388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 82488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 82588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 82688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 82788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 82888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 82988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 83088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 83188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 83288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 83388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 834065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 835065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 836a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 837a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 83888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 83988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 84088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 8414b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 842a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType::Profile(ID, Protocols, NumProtocols); 8434b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 8444b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 845a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 846a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 8474b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 8484b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 8494b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 850a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 851a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek new ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 8524b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 853a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 8544b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 8554b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 8564b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 85788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 85888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 859a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedIdType(QualType idType, 860a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, 861c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 86288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 86388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 86488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 865c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 866a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 867c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 868c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 869a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 870a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 871c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 872c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 873c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 874d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian QualType Canonical; 875d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian if (!idType->isCanonical()) { 876f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getObjCQualifiedIdType(getCanonicalType(idType), 877d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian Protocols, NumProtocols); 878a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType *NewQT = 879a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos); 880d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian assert(NewQT == 0 && "Shouldn't be in the map!"); 881d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian } 882d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian 883a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType *QType = 884a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek new ObjCQualifiedIdType(Canonical, Protocols, NumProtocols); 885c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 886a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 887c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 888c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 889c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 8909752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 8919752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 8929752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 8939752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 8949752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 8958d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 896f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 8979752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfExpr *toe = new TypeOfExpr(tofExpr, Canonical); 8989752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 8999752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 900d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 901d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 9029752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 9039752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 9049752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 9059752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 9069752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 907d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 908f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 9099752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfType *tot = new TypeOfType(tofType, Canonical); 9109752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 9119752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 912d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 913d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 9145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 917d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 918d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The decl stores the type cache. 920d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 922ea0c6fb7c52df99349066ff1aed58e4dfc4c7289Ted Kremenek TagType* T = new TagType(Decl, QualType()); 923d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek Types.push_back(T); 924d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek Decl->TypeForDecl = T; 925ea0c6fb7c52df99349066ff1aed58e4dfc4c7289Ted Kremenek 926ea0c6fb7c52df99349066ff1aed58e4dfc4c7289Ted Kremenek return QualType(T, 0); 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // On Darwin, size_t is defined as a "long unsigned int". 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: should derive from "Target". 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return UnsignedLongTy; 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 938fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// getWcharType - Return the unique type for "wchar_t" (C99 7.17), the 939fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 940fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 941fd888a581d6d329f5b447c8ff4d37cf396315993Eli FriedmanQualType ASTContext::getWcharType() const { 942fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman // On Darwin, wchar_t is defined as a "int". 943fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman // FIXME: should derive from "Target". 944fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman return IntTy; 945fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 946fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 9478b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 9488b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 9498b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 9508b9023ba35a86838789e2c9034a6128728c547aaChris Lattner // On Darwin, ptrdiff_t is defined as a "int". This seems like a bug... 9518b9023ba35a86838789e2c9034a6128728c547aaChris Lattner // FIXME: should derive from "Target". 9528b9023ba35a86838789e2c9034a6128728c547aaChris Lattner return IntTy; 9538b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 9548b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 955e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 956e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 957e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 958e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 95977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 96077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 96177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 96277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 96377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 96477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 96577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 96677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 96777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner return QualType(CanType.getTypePtr(), 96877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner T.getCVRQualifiers() | CanType.getCVRQualifiers()); 96977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 97077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 97177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 972e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 973e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 974e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 975e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 976e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 977e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 978e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 979e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // Handle the common case where typedefs are not involved directly. 980e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner QualType EltTy; 981e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner unsigned ArrayQuals = 0; 982e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner unsigned PointerQuals = 0; 983e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner if (ArrayType *AT = dyn_cast<ArrayType>(Ty)) { 984e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // Since T "isa" an array type, it could not have had an address space 985e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // qualifier, just CVR qualifiers. The properly qualified element pointer 986e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // gets the union of the CVR qualifiers from the element and the array, and 987e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // keeps any address space qualifier on the element type if present. 988e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner EltTy = AT->getElementType(); 989e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner ArrayQuals = Ty.getCVRQualifiers(); 990e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner PointerQuals = AT->getIndexTypeQualifier(); 991e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner } else { 992e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // Otherwise, we have an ASQualType or a typedef, etc. Make sure we don't 993e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // lose qualifiers when dealing with typedefs. Example: 994e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // typedef int arr[10]; 995e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // void test2() { 996e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // const arr b; 997e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // b[4] = 1; 998e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // } 999e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // 1000e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // The decayed type of b is "const int*" even though the element type of the 1001e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // array is "int". 1002f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanTy = getCanonicalType(Ty); 1003e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner const ArrayType *PrettyArrayType = Ty->getAsArrayType(); 1004e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1005e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1006e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1007e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // typedefs in the element type of the array. 1008e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner EltTy = PrettyArrayType->getElementType(); 1009e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1010e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // If the array was address-space qualifier, make sure to ASQual the element 1011e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // type. We can just grab the address space from the canonical type. 1012e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner if (unsigned AS = CanTy.getAddressSpace()) 1013e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner EltTy = getASQualType(EltTy, AS); 1014e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1015e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // To properly handle [multiple levels of] typedefs, typeof's etc, we take 1016e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // the CVR qualifiers directly from the canonical type, which is guaranteed 1017e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // to have the full set unioned together. 1018e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner ArrayQuals = CanTy.getCVRQualifiers(); 1019e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner PointerQuals = PrettyArrayType->getIndexTypeQualifier(); 1020e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner } 1021e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1022d9654557562e77564309f6b83b493a9a424e008aChris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1023d9654557562e77564309f6b83b493a9a424e008aChris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1024d9654557562e77564309f6b83b493a9a424e008aChris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1025e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner EltTy = EltTy.getQualifiedType(ArrayQuals | EltTy.getCVRQualifiers()); 1026e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1027e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner QualType PtrTy = getPointerType(EltTy); 1028e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1029e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1030e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner PtrTy = PtrTy.getQualifiedType(PointerQuals); 1031e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1032e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner return PtrTy; 1033e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1034e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1037a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1038ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1040a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1041ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1042a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 10435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 10455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1049716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1050716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1051716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1052716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 10531361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 10541361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 10551361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 10561361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 10571361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1058716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1059f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1060f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1061f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1062f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1063f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 10641361b11066239ea15764a2a844405352d87296b3Chris Lattner 10651361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 10661361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 10671361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 10681361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 10691361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 10701361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 10715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 10757cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 10767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 10777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1078a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1079a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1080a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1081a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1082a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1083fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1084a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1085fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1086fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1089f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1090f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1091f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1092f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1093f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1094f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1095f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1096f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1097f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 10987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 10997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 11007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 11017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 11027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 11037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 11047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 11057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 11067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 11077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 11087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 11097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 11107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 11117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 11127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 11137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 11147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 11157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 11167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 11177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1118f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1119f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1120f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 11217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 11227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 11237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 11247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1125f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1126f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 11277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1129f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1130f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 11337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 11367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 11377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 11387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 11397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 11407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 11417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 11427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 11437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 11447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 11457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 11467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 11477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 11487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 11497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 11507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 11517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 11527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 11537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 11547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 11577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 11587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 11597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 116171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 116271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 116371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 116471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 11656c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 11660ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner RecordDecl::Create(*this, Decl::Struct, NULL, SourceLocation(), 1167c63e660882ff93841fa234d70ef6757038302b92Chris Lattner &Idents.get("NSConstantString"), 0); 1168f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 116971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 117071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 117171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1172f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1173f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 117471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1175f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 117671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1177f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 117871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // Create fields 1179f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldDecl *FieldDecls[4]; 118071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 1181f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson for (unsigned i = 0; i < 4; ++i) 1182b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner FieldDecls[i] = FieldDecl::Create(*this, SourceLocation(), 0, 11838e25d8681822d8094bfeb97b2239363552548171Chris Lattner FieldTypes[i]); 118471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 118571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson CFConstantStringTypeDecl->defineBody(FieldDecls, 4); 118671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 118771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 118871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 11898467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1190b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1191e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1192e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 11932d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1194e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 11952d99833e8c956775f2183601cd120b65b569c867Chris Lattner return !strcmp(TT->getDecl()->getName(), "BOOL"); 119685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 119785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 119885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 119985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1200a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 120133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1202a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 120398be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 120433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 120533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 120633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 120798be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 120833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 120933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 121098be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 121198be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 121233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 121333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1214a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 121533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1216a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForMethodDecl(ObjCMethodDecl *Decl, 121733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian std::string& S) 121833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian{ 1219ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1220a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 122133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 12227d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(Decl->getResultType(), S, EncodingRecordTypes); 122333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 122433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 122533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 122633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 122798be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 122833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 122933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 123033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 123133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 123233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 123333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1234a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1235a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 123633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 123733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 123833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 123933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 124033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 124133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 124233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 124333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 124433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 124533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1246ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 124733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 1248a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier( 1249a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->getParamDecl(i)->getObjCDeclQualifier(), S); 12507d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(PType, S, EncodingRecordTypes); 125133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1252a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 125333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 125433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 125533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 12567d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 12577d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian llvm::SmallVector<const RecordType *, 8> &ERType) const 125885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson{ 1259e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // FIXME: This currently doesn't encode: 1260e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // @ An object (whether statically typed or typed id) 1261e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // # A class object (Class) 1262e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // : A method selector (SEL) 1263e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // {name=type...} A structure 1264e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // (name=type...) A union 1265e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // bnum A bit field of num bits 1266e8c49533521c40643653f943d47229e62d277f88Anders Carlsson 1267e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 126885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson char encoding; 126985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson switch (BT->getKind()) { 12707176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner default: assert(0 && "Unhandled builtin type kind"); 12717176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 12727176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 127385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_U: 12747176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 12757176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 12767176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 12777176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULong: encoding = 'L'; break; 12787176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 127985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_S: 12807176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 12817176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Short: encoding = 's'; break; 12827176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 12837176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Long: encoding = 'l'; break; 12847176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 12857176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 12867176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 12877176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 128885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 128985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 129085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += encoding; 1291c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1292a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1293c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // Treat id<P...> same as 'id' for encoding purposes. 12947d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian return getObjCEncodingForType(getObjCIdType(), S, ERType); 1295c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1296c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1297c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 129885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 1299a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (isObjCIdType(PointeeTy) || PointeeTy->isObjCInterfaceType()) { 1300c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 1301c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 1302a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 13038baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 13048baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1305a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 13068baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 13078baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1308c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 130985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 131085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 131185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 131285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 1313e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 131485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 131585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 131685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 131785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 131885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 131985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 13207d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(PT->getPointeeType(), S, ERType); 1321e8c49533521c40643653f943d47229e62d277f88Anders Carlsson } else if (const ArrayType *AT = T->getAsArrayType()) { 132285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 132385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 132485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 132585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 132685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 132785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 132885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 13297d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(AT->getElementType(), S, ERType); 133085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 1331c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 1332c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 13336de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 13346de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian RecordDecl *RDecl= RTy->getDecl(); 13356de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += '{'; 13366de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += RDecl->getName(); 13377d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian bool found = false; 13387d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (unsigned i = 0, e = ERType.size(); i != e; ++i) 13397d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian if (ERType[i] == RTy) { 13407d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian found = true; 13417d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian break; 13427d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 13437d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian if (!found) { 13447d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian ERType.push_back(RTy); 13457d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 13467d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (int i = 0; i < RDecl->getNumMembers(); i++) { 13477d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian FieldDecl *field = RDecl->getMember(i); 13487d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(field->getType(), S, ERType); 13497d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 13507d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian assert(ERType.back() == RTy && "Record Type stack mismatch."); 13517d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian ERType.pop_back(); 13526de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 13536de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += '}'; 13545e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 13555e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff S += 'i'; 135685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } else 1357f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 135885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 135985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1360a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 1361ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 1362ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 1363ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 1364ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 1365ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 1366ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 1367ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 1368ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 1369ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 1370ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 1371ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 1372ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 1373ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 1374ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 1375ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 1376b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 1377b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 1378b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 1379b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1380b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 1381b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 1382b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1383a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 13847e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 1385a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCIdType.isNull() && "'id' type already set!"); 13867e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1387a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 13887e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 13897e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 13907e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 13917e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(ptr && "'id' incorrectly typed"); 13927e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 13937e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(rec && "'id' incorrectly typed"); 13947e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 13957e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 13967e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1397a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 1398b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 1399a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCSelType.isNull() && "'SEL' type already set!"); 1400b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1401a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 1402b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1403b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 1404b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 1405b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(ptr && "'SEL' incorrectly typed"); 1406b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 1407b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(rec && "'SEL' incorrectly typed"); 1408b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 1409b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 1410b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1411a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 1412390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 1413a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCProtoType.isNull() && "'Protocol' type already set!"); 1414a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 1415390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 1416390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 1417a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 14188baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 1419a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCClassType.isNull() && "'Class' type already set!"); 14208baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1421a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 14228baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 14238baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 14248baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 14258baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 14268baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 14278baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 14288baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 14298baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 14308baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1431a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 1432a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 14332198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 14342198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1435a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 14362198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 14372198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1438ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroffbool ASTContext::builtinTypesAreCompatible(QualType lhs, QualType rhs) { 1439ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const BuiltinType *lBuiltin = lhs->getAsBuiltinType(); 1440ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const BuiltinType *rBuiltin = rhs->getAsBuiltinType(); 1441ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1442ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return lBuiltin->getKind() == rBuiltin->getKind(); 1443ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1444ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1445b145e7dedebe2ac3c6e8233bece6ffc3f67b3a66Fariborz Jahanian/// objcTypesAreCompatible - This routine is called when two types 1446b145e7dedebe2ac3c6e8233bece6ffc3f67b3a66Fariborz Jahanian/// are of different class; one is interface type or is 1447b145e7dedebe2ac3c6e8233bece6ffc3f67b3a66Fariborz Jahanian/// a qualified interface type and the other type is of a different class. 1448b145e7dedebe2ac3c6e8233bece6ffc3f67b3a66Fariborz Jahanian/// Example, II or II<P>. 1449439dbadeada35a73e0b182270456ed76dda635d4Chris Lattnerbool ASTContext::objcTypesAreCompatible(QualType LHS, QualType RHS) { 1450439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner // ID is compatible with all interface types. 1451439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner if (LHS->isObjCInterfaceType() && isObjCIdType(RHS)) 1452ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1453439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner else if (isObjCIdType(LHS) && RHS->isObjCInterfaceType()) 1454ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1455368eefa081d12f0a265ee90ee8ec61b54168d57dChris Lattner 1456439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner // II is compatible with II<P> if the base is the same. Otherwise, no two 1457439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner // qualified interface types are the same. 1458439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner if (const ObjCInterfaceType *LHSIT = LHS->getAsObjCInterfaceType()) { 1459439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner if (const ObjCInterfaceType *RHSIT = RHS->getAsObjCInterfaceType()) { 1460439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner // If the base decls match and one is a qualified interface and one isn't, 1461439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner // then they are compatible. 1462439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner return LHSIT->getDecl() == RHSIT->getDecl() && 1463439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner isa<ObjCQualifiedInterfaceType>(LHSIT) != 1464439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner isa<ObjCQualifiedInterfaceType>(RHSIT); 1465439dbadeada35a73e0b182270456ed76dda635d4Chris Lattner } 1466b145e7dedebe2ac3c6e8233bece6ffc3f67b3a66Fariborz Jahanian } 1467ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1468ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1469ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1470065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// areCompatObjCQualInterfaces - Return true if the two qualified interface 1471065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// types are compatible for assignment from RHS to LHS. 1472065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// 14733b27546b42bc3d5ec261f3228192350affb370beChris Lattnerstatic bool 14743b27546b42bc3d5ec261f3228192350affb370beChris LattnerareCompatObjCQualInterfaces(const ObjCQualifiedInterfaceType *LHS, 14753b27546b42bc3d5ec261f3228192350affb370beChris Lattner const ObjCQualifiedInterfaceType *RHS) { 14763b27546b42bc3d5ec261f3228192350affb370beChris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 147753efc251792bf2c9c5f295bd3507facc51a1fe7eChris Lattner // the LHS. 14783b27546b42bc3d5ec261f3228192350affb370beChris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 14794ffc54111fdc0baa45bb287f59774e06dea8caa4Fariborz Jahanian return false; 1480c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner 1481821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 1482821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 1483821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 1484821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHS->qual_begin(); 1485821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHS->qual_end(); 1486821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHS->qual_begin(); 1487821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHS->qual_end(); 1488821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner 1489821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 1490821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 1491821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner 1492821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner while (RHSPI != RHSPE) { 1493821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 1494821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 1495821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner if (RHSProto != LHSProto) 1496821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner continue; 1497821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner 1498821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner // Otherwise, the RHS does have this element. 1499821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner ++LHSPI; 1500821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner if (LHSPI == LHSPE) 1501821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner return true; // All protocols in LHS exist in RHS. 1502821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner 1503821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner LHSProto = *LHSPI; 15044ffc54111fdc0baa45bb287f59774e06dea8caa4Fariborz Jahanian } 1505821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner 1506821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 1507821a01baa2968dd27720c631a6722ec60686ce27Chris Lattner return false; 15084ffc54111fdc0baa45bb287f59774e06dea8caa4Fariborz Jahanian} 15094ffc54111fdc0baa45bb287f59774e06dea8caa4Fariborz Jahanian 1510f62f9cd5a78e5445a02e37b277f7a2df9c19b7a3Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 1511f62f9cd5a78e5445a02e37b277f7a2df9c19b7a3Chris Lattner/// compatible. 1512f62f9cd5a78e5445a02e37b277f7a2df9c19b7a3Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 1513f62f9cd5a78e5445a02e37b277f7a2df9c19b7a3Chris Lattner const VectorType *RHS) { 1514f62f9cd5a78e5445a02e37b277f7a2df9c19b7a3Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 1515f62f9cd5a78e5445a02e37b277f7a2df9c19b7a3Chris Lattner return LHS->getElementType() == RHS->getElementType() && 1516f62f9cd5a78e5445a02e37b277f7a2df9c19b7a3Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 1517770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner} 1518770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 1519ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff// C99 6.2.7p1: If both are complete types, then the following additional 1520ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff// requirements apply...FIXME (handle compatibility across source files). 1521ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroffbool ASTContext::tagTypesAreCompatible(QualType lhs, QualType rhs) { 1522ab373097926c4f24dd653e8b9aebcbf2eff17881Steve Naroff // "Class" and "id" are compatible built-in structure types. 1523a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (isObjCIdType(lhs) && isObjCClassType(rhs) || 1524a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek isObjCClassType(lhs) && isObjCIdType(rhs)) 1525ab373097926c4f24dd653e8b9aebcbf2eff17881Steve Naroff return true; 1526d57405250498a1b5f23c97c6e089318f6f3eefd7Eli Friedman 1527d57405250498a1b5f23c97c6e089318f6f3eefd7Eli Friedman // Within a translation unit a tag type is 1528d57405250498a1b5f23c97c6e089318f6f3eefd7Eli Friedman // only compatible with itself. 1529d57405250498a1b5f23c97c6e089318f6f3eefd7Eli Friedman return lhs.getCanonicalType() == rhs.getCanonicalType(); 1530ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1531ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1532ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroffbool ASTContext::pointerTypesAreCompatible(QualType lhs, QualType rhs) { 1533ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // C99 6.7.5.1p2: For two pointer types to be compatible, both shall be 1534ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // identically qualified and both shall be pointers to compatible types. 1535f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner if (lhs.getCVRQualifiers() != rhs.getCVRQualifiers() || 1536f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner lhs.getAddressSpace() != rhs.getAddressSpace()) 1537ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1538ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1539ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff QualType ltype = cast<PointerType>(lhs.getCanonicalType())->getPointeeType(); 1540ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff QualType rtype = cast<PointerType>(rhs.getCanonicalType())->getPointeeType(); 1541ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1542ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return typesAreCompatible(ltype, rtype); 1543ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1544ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 154543d69750e7f7b26076e7474dec8839bb777b260fBill Wendling// C++ 5.17p6: When the left operand of an assignment operator denotes a 1546ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff// reference to T, the operation assigns to the object of type T denoted by the 1547ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff// reference. 1548ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroffbool ASTContext::referenceTypesAreCompatible(QualType lhs, QualType rhs) { 1549ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff QualType ltype = lhs; 1550ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1551ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (lhs->isReferenceType()) 1552bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner ltype = cast<ReferenceType>(lhs.getCanonicalType())->getPointeeType(); 1553ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1554ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff QualType rtype = rhs; 1555ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1556ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (rhs->isReferenceType()) 1557bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner rtype = cast<ReferenceType>(rhs.getCanonicalType())->getPointeeType(); 1558ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1559ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return typesAreCompatible(ltype, rtype); 1560ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1561ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1562ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroffbool ASTContext::functionTypesAreCompatible(QualType lhs, QualType rhs) { 1563ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionType *lbase = cast<FunctionType>(lhs.getCanonicalType()); 1564ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionType *rbase = cast<FunctionType>(rhs.getCanonicalType()); 1565ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 1566ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 1567ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1568ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // first check the return types (common between C99 and K&R). 1569ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (!typesAreCompatible(lbase->getResultType(), rbase->getResultType())) 1570ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1571ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1572ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (lproto && rproto) { // two C99 style function prototypes 1573ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff unsigned lproto_nargs = lproto->getNumArgs(); 1574ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff unsigned rproto_nargs = rproto->getNumArgs(); 1575ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1576ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (lproto_nargs != rproto_nargs) 1577ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1578ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1579ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // both prototypes have the same number of arguments. 1580ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if ((lproto->isVariadic() && !rproto->isVariadic()) || 1581ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff (rproto->isVariadic() && !lproto->isVariadic())) 1582ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1583ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1584ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // The use of ellipsis agree...now check the argument types. 1585ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff for (unsigned i = 0; i < lproto_nargs; i++) 1586f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff // C99 6.7.5.3p15: ...and each parameter declared with qualified type 1587f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff // is taken as having the unqualified version of it's declared type. 1588ba03eda1599dd89da935a2b46da10659afe46addSteve Naroff if (!typesAreCompatible(lproto->getArgType(i).getUnqualifiedType(), 1589f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff rproto->getArgType(i).getUnqualifiedType())) 1590ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1591ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1592ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 1593ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (!lproto && !rproto) // two K&R style function decls, nothing to do. 1594ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1595ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1596ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // we have a mixture of K&R style with C99 prototypes 1597ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionTypeProto *proto = lproto ? lproto : rproto; 1598ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1599ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (proto->isVariadic()) 1600ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1601ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1602ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // FIXME: Each parameter type T in the prototype must be compatible with the 1603ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // type resulting from applying the usual argument conversions to T. 1604ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1605ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1606ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1607ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroffbool ASTContext::arrayTypesAreCompatible(QualType lhs, QualType rhs) { 16084e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman // Compatible arrays must have compatible element types 16094e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman QualType ltype = lhs->getAsArrayType()->getElementType(); 16104e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman QualType rtype = rhs->getAsArrayType()->getElementType(); 16114e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman 1612ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (!typesAreCompatible(ltype, rtype)) 1613ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 16144e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman 16154e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman // Compatible arrays must be the same size 16164e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman if (const ConstantArrayType* LCAT = lhs->getAsConstantArrayType()) 16174e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman if (const ConstantArrayType* RCAT = rhs->getAsConstantArrayType()) 16184e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman return RCAT->getSize() == LCAT->getSize(); 16194e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman 1620ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1621ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1622ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1623ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 1624ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 1625ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 1626ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 1627c4e405996217f4be20f73186da53b23b5c4783dcChris Lattnerbool ASTContext::typesAreCompatible(QualType LHS_NC, QualType RHS_NC) { 1628c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner QualType LHS = LHS_NC.getCanonicalType(); 1629c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner QualType RHS = RHS_NC.getCanonicalType(); 1630988ee6ef540d1203cf4aa52971f3c135c796bdf7Chris Lattner 163143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 163243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 163343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 163443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 1635c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (ReferenceType *RT = dyn_cast<ReferenceType>(LHS)) 1636c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 1637c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (ReferenceType *RT = dyn_cast<ReferenceType>(RHS)) 1638c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 16391adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 1640f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 1641f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner if (LHS == RHS) 1642f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner return true; 1643f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 1644f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If qualifiers differ, the types are different. 1645a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner unsigned LHSAS = LHS.getAddressSpace(), RHSAS = RHS.getAddressSpace(); 1646a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHS.getCVRQualifiers() != RHS.getCVRQualifiers() || LHSAS != RHSAS) 1647f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner return false; 1648a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 1649a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner // Strip off ASQual's if present. 1650a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSAS) { 1651a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHS = LHS.getUnqualifiedType(); 1652a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHS = RHS.getUnqualifiedType(); 1653a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner } 1654f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 1655c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner Type::TypeClass LHSClass = LHS->getTypeClass(); 1656c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner Type::TypeClass RHSClass = RHS->getTypeClass(); 16571adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 16581adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 16591adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 16601adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 16611adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 16624c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 16634c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 1664a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 1665a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 1666a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 1667a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 1668a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 1669a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner // Canonicalize OCUVector -> Vector. 1670a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::OCUVector) LHSClass = Type::Vector; 1671a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::OCUVector) RHSClass = Type::Vector; 1672ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1673a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner // If the canonical type classes don't match. 16741adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass != RHSClass) { 1675ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // For Objective-C, it is possible for two types to be compatible 1676ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // when their classes don't match (when dealing with "id"). If either type 1677ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // is an interface, we defer to objcTypesAreCompatible(). 1678c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (LHS->isObjCInterfaceType() || RHS->isObjCInterfaceType()) 1679c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return objcTypesAreCompatible(LHS, RHS); 1680f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff 16811adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 16821adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 1683c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (LHS->isEnumeralType() && RHS->isIntegralType()) { 1684c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner EnumDecl* EDecl = cast<EnumType>(LHS)->getDecl(); 1685c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return EDecl->getIntegerType() == RHS; 1686bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 1687c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (RHS->isEnumeralType() && LHS->isIntegralType()) { 1688c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner EnumDecl* EDecl = cast<EnumType>(RHS)->getDecl(); 1689c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return EDecl->getIntegerType() == LHS; 1690bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 16911adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 1692ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1693ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 1694a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 16954a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 16961adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 1697a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::ASQual: 1698a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::FunctionProto: 1699a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::VariableArray: 1700a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::IncompleteArray: 1701a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::Reference: 1702a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner assert(0 && "Canonicalized away above"); 17031adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 1704c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return pointerTypesAreCompatible(LHS, RHS); 17051adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 1706c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return arrayTypesAreCompatible(LHS, RHS); 17071adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 1708c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return functionTypesAreCompatible(LHS, RHS); 17091adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Tagged: // handle structures, unions 1710c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return tagTypesAreCompatible(LHS, RHS); 17111adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 1712c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return builtinTypesAreCompatible(LHS, RHS); 17131adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 171453efc251792bf2c9c5f295bd3507facc51a1fe7eChris Lattner // The LHS must be a superclass of the RHS. 171553efc251792bf2c9c5f295bd3507facc51a1fe7eChris Lattner return cast<ObjCInterfaceType>(LHS)->getDecl()->isSuperClassOf( 171653efc251792bf2c9c5f295bd3507facc51a1fe7eChris Lattner cast<ObjCInterfaceType>(RHS)->getDecl()); 17171adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Vector: 1718f62f9cd5a78e5445a02e37b277f7a2df9c19b7a3Chris Lattner return areCompatVectorTypes(cast<VectorType>(LHS), cast<VectorType>(RHS)); 17191adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCQualifiedInterface: 17203b27546b42bc3d5ec261f3228192350affb370beChris Lattner return areCompatObjCQualInterfaces(cast<ObjCQualifiedInterfaceType>(LHS), 17213b27546b42bc3d5ec261f3228192350affb370beChris Lattner cast<ObjCQualifiedInterfaceType>(RHS)); 17221adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 17231adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 1724ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 1725ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; // should never get here... 1726ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 17277192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 17287192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 17297192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 17305451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 17315451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 17325451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 17335451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 17347192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 1735fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 1736fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 1737a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 1738a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 173903ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 174003ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 174103ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 1742a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 1743a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 17447192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 17457192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 17460f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 1747fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 1748fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 1749fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 1750fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 17510ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 1752fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 1753fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 1754fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek ASTContext* A = new ASTContext(SM,t,idents,sels,size_reserve); 1755fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 175603ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 175703ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 17580ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 1759a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 1760fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 1761fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 1762fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 1763