ASTContext.cpp revision 61710854be2b098428aff5316e64bd34b30fbcb7
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 1549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 16980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 17e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 18e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/RecordLayout.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 2085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 217192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Serialize.h" 227192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Deserialize.h" 2385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3061710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 32e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 33e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar unsigned size_reserve) : 34bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson CFConstantStringTypeDecl(0), ObjCFastEnumerationStateTypeDecl(0), 35bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson SourceMgr(SM), LangOpts(LOpts), Target(t), 36e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar Idents(idents), Selectors(sels) 37e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar{ 38e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 39e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar BuiltinInfo.InitializeBuiltins(idents, Target); 41e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 42e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 43e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 474b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 50b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 51b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumBuiltin = 0, NumPointer = 0, NumArray = 0, NumFunctionP = 0; 58248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar unsigned NumVector = 0, NumComplex = 0, NumBlockPointer = 0; 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumFunctionNP = 0, NumTypeName = 0, NumTagged = 0, NumReference = 0; 605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumTagStruct = 0, NumTagUnion = 0, NumTagEnum = 0, NumTagClass = 0; 62a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCInterfaces = 0, NumObjCQualifiedInterfaces = 0; 63a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCQualifiedIds = 0; 646cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff unsigned NumTypeOfTypes = 0, NumTypeOfExprs = 0; 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isa<BuiltinType>(T)) 695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumBuiltin; 705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<PointerType>(T)) 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumPointer; 72248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar else if (isa<BlockPointerType>(T)) 73248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar ++NumBlockPointer; 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ReferenceType>(T)) 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumReference; 766d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<ComplexType>(T)) 776d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumComplex; 785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ArrayType>(T)) 795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumArray; 806d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<VectorType>(T)) 816d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumVector; 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeNoProto>(T)) 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionNP; 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeProto>(T)) 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionP; 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<TypedefType>(T)) 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTypeName; 885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (TagType *TT = dyn_cast<TagType>(T)) { 895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTagged; 9039ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis switch (TT->getDecl()->getTagKind()) { 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown tagged type!"); 9239ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_struct: ++NumTagStruct; break; 9339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_union: ++NumTagUnion; break; 9439ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_class: ++NumTagClass; break; 9539ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_enum: ++NumTagEnum; break; 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 97a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isa<ObjCInterfaceType>(T)) 98a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCInterfaces; 99a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedInterfaceType>(T)) 100a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedInterfaces; 101a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedIdType>(T)) 102a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedIds; 1036cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfType>(T)) 1046cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfTypes; 1056cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfExpr>(T)) 1066cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfExprs; 1073f128ad2691d299b96663da85a9e069c4081ea7cSteve Naroff else { 108beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner QualType(T, 0).dump(); 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(0 && "Unknown type!"); 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d builtin types\n", NumBuiltin); 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d pointer types\n", NumPointer); 115248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar fprintf(stderr, " %d block pointer types\n", NumBlockPointer); 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d reference types\n", NumReference); 1176d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d complex types\n", NumComplex); 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d array types\n", NumArray); 1196d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d vector types\n", NumVector); 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with proto\n", NumFunctionP); 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with no proto\n", NumFunctionNP); 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d typename (typedef) types\n", NumTypeName); 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d tagged types\n", NumTagged); 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d struct types\n", NumTagStruct); 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d union types\n", NumTagUnion); 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d class types\n", NumTagClass); 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d enum types\n", NumTagEnum); 128a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek fprintf(stderr, " %d interface types\n", NumObjCInterfaces); 129beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner fprintf(stderr, " %d protocol qualified interface types\n", 130a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedInterfaces); 131c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian fprintf(stderr, " %d protocol qualified id types\n", 132a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedIds); 1336cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof types\n", NumTypeOfTypes); 1346cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof exprs\n", NumTypeOfExprs); 1356cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "Total bytes = %d\n", int(NumBuiltin*sizeof(BuiltinType)+ 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumPointer*sizeof(PointerType)+NumArray*sizeof(ArrayType)+ 1386d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner NumComplex*sizeof(ComplexType)+NumVector*sizeof(VectorType)+ 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionP*sizeof(FunctionTypeProto)+ 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionNP*sizeof(FunctionTypeNoProto)+ 1416cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeName*sizeof(TypedefType)+NumTagged*sizeof(TagType)+ 1426cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeOfTypes*sizeof(TypeOfType)+NumTypeOfExprs*sizeof(TypeOfExpr))); 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back((R = QualType(new BuiltinType(K),0)).getTypePtr()); 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 15998be4943e8dc4f3905629a7102668960873cf863Chris Lattner if (Target.isCharSigned()) 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 18164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 18264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // C++ 3.9.1p5 18364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis InitBuiltinType(WCharTy, BuiltinType::WChar); 18464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 1897e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1907e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 191a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 1927e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 193a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 1948baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 1958baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 196a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 19733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 19833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 19933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 202464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 203464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 204464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 205a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 206b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 207b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 208b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 209b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 210b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 211b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 212b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 213b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 214b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 215b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 216b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 217b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 218b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 219b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 220a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 221a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 222d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 22398be4943e8dc4f3905629a7102668960873cf863Chris LattnerASTContext::getTypeInfo(QualType T) { 224f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner T = getCanonicalType(T); 2259e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner uint64_t Width; 226d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner unsigned Align; 227a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 228030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::TypeName: assert(0 && "Not a canonical type!"); 2295d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 2305d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 231692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: 232b1c2df99ba67ec6c29ac7dceaa4eb2c8cda4a017Chris Lattner assert(0 && "Incomplete types have no size!"); 233fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 234fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff assert(0 && "VLAs not implemented yet!"); 235fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 236fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType *CAT = cast<ConstantArrayType>(T); 237030d8846c7e520330007087e949f621989876e3aChris Lattner 23898be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 2399e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 240030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 241030d8846c7e520330007087e949f621989876e3aChris Lattner break; 2425c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 243213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 244030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 245030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 24698be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 2479e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 2484bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // FIXME: This isn't right for unusual vectors 2494bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 250030d8846c7e520330007087e949f621989876e3aChris Lattner break; 251030d8846c7e520330007087e949f621989876e3aChris Lattner } 2525d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 2539e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 254a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 255692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 256d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 257d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 2586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 2599e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 2609e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 2616f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 262692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 263692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 264692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 2656f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 2669e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 2679e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 2686f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 26964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 27064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 27164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 27264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 273692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 2746f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 2759e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 2769e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 2776f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 278692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 2796f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 2809e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 2819e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 2826f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 283692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 2846f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 2859e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 2869e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 2876f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 288692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 2896f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 2909e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 2919e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 2926f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2936f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 2949e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 2959e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 2966f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2976f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 2985426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 2995426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 3006f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3016f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 3029e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 3039e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 3046f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 305a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 306bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 307ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb case Type::ASQual: 30898be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 30998be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 31098be4943e8dc4f3905629a7102668960873cf863Chris Lattner return getTypeInfo(QualType(cast<ASQualType>(T)->getBaseType(), 0)); 311a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 3125426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 313f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 3146f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 315485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 316485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 317485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 318485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 319485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 320485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 321f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 322f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 3235426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 324f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 325f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 326f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 327a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner case Type::Reference: 3287ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 3295d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 3306f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 3316f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 332bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 3335d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 3345d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 3355d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 3365d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 3375d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 33898be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 3399e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 3405d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 3415d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 3425d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 34344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 34444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 34544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 34644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 34744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 34844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 34944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 3507176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case Type::Tagged: { 3518389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (cast<TagType>(T)->getDecl()->isInvalidDecl()) { 3528389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 3538389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 3548389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 3558389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 3568389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 3577176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner if (EnumType *ET = dyn_cast<EnumType>(cast<TagType>(T))) 3587176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 3597176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 3607176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner RecordType *RT = cast<RecordType>(T); 3617176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 3627176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 3637176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 364dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 365a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 3667176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 367d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 368464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 3699e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 370a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 371a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 3728b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 3738b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 3748b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel bool IsUnion, bool StructIsPacked, 3758b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 3768b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel bool FieldIsPacked = StructIsPacked || FD->getAttr<PackedAttr>(); 3778b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 3788b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 3798b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 3808b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3818b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 3828b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 3838b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 38432442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar FieldSize = 38532442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar BitWidthExpr->getIntegerConstantExprValue(Context).getZExtValue(); 3868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 3888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 3898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 3908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 3928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldIsPacked) 3938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 3948b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 3958b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 3968b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3978b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 3988b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 3998b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 4008b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 4018b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4028b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 4038b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 4048b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 4058b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4068389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 4078389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 4088b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 4098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 4108b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 4118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 412c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 4138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 4148b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 4168b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 4178b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 4188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 4198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4208b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldIsPacked) 4228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 8; 4238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 4248b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 4258b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4268b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 4278b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 4288b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4308b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 4318b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 4328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4338b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 4348b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 4358b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 4368b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4378b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 4388b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4398b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4408b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 4418b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 4428b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 4438b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 44444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 44561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// getASTObjcInterfaceLayout - Get or compute information about the layout of 44661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// the specified Objective C, which indicates its size and ivar 44744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// position information. 44844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 44944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang PatelASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 45044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 45144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout *&Entry = ASTObjCInterfaces[D]; 45244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (Entry) return *Entry; 45344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 45444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 45544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 4566a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 4576a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned FieldCount = D->ivar_size(); 4586a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 4596a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel FieldCount++; 4606a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 4616a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 4626a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel uint64_t Size = SL.getSize(); 4636a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(Size, Alignment); 4646a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 46561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner // Super class is at the beginning of the layout. 46661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner NewEntry->SetFieldOffset(0, 0); 4676a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 4686a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(); 4696a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 4706a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 47144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Entry = NewEntry; 47244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 47344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel bool IsPacked = D->getAttr<PackedAttr>(); 47444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 47544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 47644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 47744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 47844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 47944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 48044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 48144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 48244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 48344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 48444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->LayoutField(Ivar, i++, false, IsPacked, *this); 48544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 48644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 48744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 48844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 48944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 49044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 49144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 49244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 49388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 494464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 495464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 49698be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 4974b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 4984b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 4994bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 500464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 50188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 502464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 5034bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 50488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 50588a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 50688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 507464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 5084bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->InitializeLayout(D->getNumMembers()); 5104bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman bool StructIsPacked = D->getAttr<PackedAttr>(); 51139ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 512464175bba1318bef7905122e9fda20cff926df78Chris Lattner 5134bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 5148b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 5158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 5164bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5174bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 5184bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 5194bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman for (unsigned i = 0, e = D->getNumMembers(); i != e; ++i) { 5204bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman const FieldDecl *FD = D->getMember(i); 5218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->LayoutField(FD, i, IsUnion, StructIsPacked, *this); 522464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 5234bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5244bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 5254bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 5268b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 5275d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 528464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 529464175bba1318bef7905122e9fda20cff926df78Chris Lattner 530a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 531a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 532a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 533a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 534ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher LambQualType ASTContext::getASQualType(QualType T, unsigned AddressSpace) { 535f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 536f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 537f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 538f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 539f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Type's cannot have multiple ASQuals, therefore we know we only have to deal 540f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // with CVR qualifiers from here on out. 541f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(CanT.getAddressSpace() == 0 && 542f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner "Type is already address space qualified"); 543f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 544f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Check if we've already instantiated an address space qual'd type of this 545f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // type. 546ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 547f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType::Profile(ID, T.getTypePtr(), AddressSpace); 548ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 549ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (ASQualType *ASQy = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 550ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb return QualType(ASQy, 0); 551ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 552ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 553ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 554ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 555ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (!T->isCanonical()) { 556f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getASQualType(CanT, AddressSpace); 557ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 558ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // Get the new insert position for the node we care about. 559ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualType *NewIP = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos); 560ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb assert(NewIP == 0 && "Shouldn't be in the map!"); 561ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 562f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType *New = new ASQualType(T.getTypePtr(), Canonical, AddressSpace); 563ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualTypes.InsertNode(New, InsertPos); 564ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 565f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return QualType(New, T.getCVRQualifiers()); 566ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 567ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 568a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 5695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 5715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 5725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 5735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 5765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 5785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 5795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 5805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 5845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 585f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 5865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *New = new ComplexType(T, Canonical); 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 614f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 6155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 6185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 6195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *New = new PointerType(T, Canonical); 6215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6265618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 6275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 6285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 629296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 630296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 6315618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 6325618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 6335618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 6345618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6355618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 6365618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 6375618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 6385618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 6395618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 640296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 6415618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 6425618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 6435618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 6445618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 6455618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6465618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 6475618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 6485618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 6495618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff assert(NewIP == 0 && "Shouldn't be in the map!"); 6505618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 6515618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *New = new BlockPointerType(T, Canonical); 6525618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 6535618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 6545618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 6555618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 6565618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getReferenceType - Return the uniqued reference to the type for a reference 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to the specified type. 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getReferenceType(QualType T) { 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ReferenceType *RT = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 673f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getReferenceType(getCanonicalType(T)); 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *NewIP = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 6785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *New = new ReferenceType(T, Canonical); 6815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceTypes.InsertNode(New, InsertPos); 6835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 686fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 687fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 688fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 689c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 690c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 691c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 693fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType::Profile(ID, EltTy, ArySize); 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6967192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 6977192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 7015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 704f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 705c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7077192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 7087192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 7097192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 713c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ConstantArrayType *New = new ConstantArrayType(EltTy, Canonical, ArySize, 714c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 7157192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 720bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 721bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 722c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 723c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 724c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 725c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 726c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 727c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 728c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayType *New = new VariableArrayType(EltTy, QualType(), NumElts, 729c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 730c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 731c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 732c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 733c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 734c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 735c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 736c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 737c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 738c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 739c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 740c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType::Profile(ID, EltTy); 741c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 742c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 743c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 744c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 745c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 746c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 747c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 748c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 749c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 750c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 751c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 752f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 7532bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 754c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 755c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 756c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 757c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 758c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 759c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman assert(NewIP == 0 && "Shouldn't be in the map!"); 7602bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 761c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 762c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *New = new IncompleteArrayType(EltTy, Canonical, 763c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 764c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 765c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 766c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 767c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 768fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 769fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 77073322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 77173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 77273322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 7735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 7745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 775f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 77673322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 78073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 7835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 7845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 789f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 7905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 7935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 7945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *New = new VectorType(vecType, NumElts, Canonical); 7965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 7975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 801213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 80273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 803213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 80473322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 80573322924127c873c13101b705dd823f5539ffa5fSteve Naroff 806f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 807213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 80873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 80973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 81073322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 811213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 81273322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 81373322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 81473322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 81573322924127c873c13101b705dd823f5539ffa5fSteve Naroff 81673322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 81773322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 81873322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 81973322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 820213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 82173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 82273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 82373322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 82473322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(NewIP == 0 && "Shouldn't be in the map!"); 82573322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 826213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman ExtVectorType *New = new ExtVectorType(vecType, NumElts, Canonical); 82773322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 82873322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 82973322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 83073322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 83173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 8345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionTypeNoProto(QualType ResultTy) { 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto::Profile(ID, ResultTy); 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeNoProto *FT = 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos)) 8435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 847f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionTypeNoProto(getCanonicalType(ResultTy)); 8485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *NewIP = 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos); 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 8535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *New = new FunctionTypeNoProto(ResultTy, Canonical); 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 85756cd7e3848c2d59ca2ec3b72d0834192edf0bcdfEli Friedman FunctionTypeNoProtos.InsertNode(New, InsertPos); 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 86361710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 8645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs, bool isVariadic) { 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic); 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FTP = 8725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos)) 8735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 8775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 8825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 8855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 8865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 887f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 8885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 889f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isVariadic); 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *NewIP = 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos); 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FunctionTypeProto objects are not allocated with new because they have a 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // variable size array (for parameter types) at the end of them. 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *FTP = 9025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer (FunctionTypeProto*)malloc(sizeof(FunctionTypeProto) + 903942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner NumArgs*sizeof(QualType)); 9045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer new (FTP) FunctionTypeProto(ResultTy, ArgArray, NumArgs, isVariadic, 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Canonical); 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.InsertNode(FTP, InsertPos); 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9112ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 9122ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 9134b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 9142ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9152ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 9162ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (TypedefDecl *Typedef = dyn_cast_or_null<TypedefDecl>(Decl)) 9172ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 9182ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor else if (ObjCInterfaceDecl *ObjCInterface 9192ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor = dyn_cast_or_null<ObjCInterfaceDecl>(Decl)) 9202ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 92149aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 9224b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (CXXRecordDecl *CXXRecord = dyn_cast_or_null<CXXRecordDecl>(Decl)) { 9234b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek Decl->TypeForDecl = PrevDecl ? PrevDecl->TypeForDecl 9244b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek : new CXXRecordType(CXXRecord); 9254b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 9264b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek else if (RecordDecl *Record = dyn_cast_or_null<RecordDecl>(Decl)) { 9274b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek Decl->TypeForDecl = PrevDecl ? PrevDecl->TypeForDecl 9284b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek : new RecordType(Record); 9294b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 93049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else if (EnumDecl *Enum = dyn_cast_or_null<EnumDecl>(Decl)) 9312ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Decl->TypeForDecl = new EnumType(Enum); 93249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 9332ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 93449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 9354b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 93649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 9372ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 9382ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 9394b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek/// setTagDefinition - Used by RecordDecl::defineBody to inform ASTContext 9404b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek/// about which RecordDecl serves as the definition of a particular 9414b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek/// struct/union/class. This will eventually be used by enums as well. 9424b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenekvoid ASTContext::setTagDefinition(TagDecl* D) { 9434b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert (D->isDefinition()); 9444b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek cast<TagType>(D->TypeForDecl)->decl = D; 9454b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek} 9464b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 952f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 953c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Decl->TypeForDecl = new TypedefType(Type::TypeName, Decl, Canonical); 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 958a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 9593536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 960a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 9613536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9623536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 963a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->TypeForDecl = new ObjCInterfaceType(Type::ObjCInterface, Decl); 9643536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 9653536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 9663536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 9673536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 96888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 96988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 97088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 97188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 97288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner return strcmp(LHS->getName(), RHS->getName()) < 0; 97388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 97488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 97588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 97688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 97788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 97888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 97988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 98088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 98188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 98288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 98388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 98488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 98588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 98688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 98788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 988065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 989065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 990a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 991a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 99288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 99388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 99488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 9954b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 996b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 9974b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 9984b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 999a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1000a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10014b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 10024b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 10034b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1004a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1005a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek new ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 10064b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1007a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 10084b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 10094b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 10104b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 101188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 101288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 101362f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1014c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 101588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 101688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 101788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1018c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1019a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1020c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1021c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1022a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 102362f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1024c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1025c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1026c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 102762f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdType *QType = new ObjCQualifiedIdType(Protocols, NumProtocols); 1028c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1029a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1030c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1031c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1032c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 10339752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 10349752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 10359752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 10369752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 10379752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 10388d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 1039f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 10409752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfExpr *toe = new TypeOfExpr(tofExpr, Canonical); 10419752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 10429752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1043d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1044d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 10459752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 10469752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 10479752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 10489752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 10499752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1050d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1051f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 10529752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfType *tot = new TypeOfType(tofType, Canonical); 10539752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 10549752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1055d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1056d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 10575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 10585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1060d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 10612ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 10685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // On Darwin, size_t is defined as a "long unsigned int". 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: should derive from "Target". 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return UnsignedLongTy; 10715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 107355f4b02bc71e7347986c6a5249bef635aac1901aArgyrios Kyrtzidis/// getWCharType - Return the unique type for "wchar_t" (C99 7.17), the 1074fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 1075fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 107655f4b02bc71e7347986c6a5249bef635aac1901aArgyrios KyrtzidisQualType ASTContext::getWCharType() const { 107764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (LangOpts.CPlusPlus) 107864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 107964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1080fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman // On Darwin, wchar_t is defined as a "int". 1081fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman // FIXME: should derive from "Target". 1082fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman return IntTy; 1083fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 1084fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 108564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 108664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 108764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 108864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 108964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 109064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 109164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 109264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 109364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 109464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 109564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 109664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 109764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 109864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 10998b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 11008b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 11018b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 11028b9023ba35a86838789e2c9034a6128728c547aaChris Lattner // On Darwin, ptrdiff_t is defined as a "int". This seems like a bug... 11038b9023ba35a86838789e2c9034a6128728c547aaChris Lattner // FIXME: should derive from "Target". 11048b9023ba35a86838789e2c9034a6128728c547aaChris Lattner return IntTy; 11058b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 11068b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1107e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1108e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1109e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1110e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 111177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 111277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 111377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 111477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 111577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 111677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 111777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 111877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1119c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1120c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1121c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1122c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1123c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1124c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1125c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1126c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1127c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1128c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1129c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1130c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1131c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1132c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1133c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1134c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1135c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1136c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1137c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1138c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1139c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1140c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1141c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1142c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // FIXME: What is the ownership of size expressions in VLAs? 1143c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1144c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1145c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1146c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1147c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1148c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1149c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1150c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1151c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1152c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1153c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1154c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1155c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1156c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1157c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1158c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1159c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1160c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1161c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Make sure to look through type qualifiers (like ASQuals) for the negative 1162c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1163c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1164c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1165c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1166c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1167c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1168c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1169c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1170c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1171c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1172c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1173c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1174c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1175c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1176c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1177c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1178c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Rip through ASQualType's and typedefs to get to a concrete type. 1179c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1180c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ASQualType *ASQT = dyn_cast<ASQualType>(Ty)) { 1181c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner AddrSpace = ASQT->getAddressSpace(); 1182c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = ASQT->getBaseType(); 1183c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1184c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1185c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1186c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1187c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1188c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1189c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1190c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1191c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1192c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1193c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1194c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1195c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1196c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1197c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1198c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1199c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1200c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1201c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1202c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1203c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getASQualType(NewEltTy, AddrSpace); 1204c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1205c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1206c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1207c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1208c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1209c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1210c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1211c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1212c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1213c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1214c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1215c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // FIXME: What is the ownership of size expressions in VLAs? 1216c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1217c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1218c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1219c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 122077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 122177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 122277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1223e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1224e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1225e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1226e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1227e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1228e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1229e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1230c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1231c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1232c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1233c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1234c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1235c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1236e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1237c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1238e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1239e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1240c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1241e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1242e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1245a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1246ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1248a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1249ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1250a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 12515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1257716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1258716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1259716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1260716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 12611361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 12621361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 12631361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 12641361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 12651361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1266716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1267f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1268f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1269f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1270f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1271f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 12721361b11066239ea15764a2a844405352d87296b3Chris Lattner 12731361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 12741361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 12751361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 12761361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 12771361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 12781361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12827cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 12837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 12847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 12857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1286a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1287a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1288a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1289a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1290a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1291fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1292a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1293fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1294fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1297f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1298f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1299f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1300f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1301f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1302f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1303f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1304f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1305f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 13067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 13077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 13087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 13097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 13107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 13117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 13127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 13137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 13147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 13157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 13167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 13177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 13187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 13197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 13207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 13217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 13227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 13237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 13247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 13257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1326f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1327f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1328f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 13297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 13307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 13317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 13327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1333f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1334f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 13357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 13365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1337f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1338f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 13395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 13417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 13425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 13447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 13457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 13467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 13477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 13487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 13497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 13507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 13517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 13527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 13537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 13547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 13557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 13567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 13577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 13587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 13597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 13607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 13617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 13627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 13635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 13657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 13667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 13677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 13685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 136971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 137071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 137171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 137271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 13736c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 137439ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1375df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 1376f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 137771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 137871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 137971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1380f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1381f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 138271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1383f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 138471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1385f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 138671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // Create fields 1387f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldDecl *FieldDecls[4]; 138871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 1389f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson for (unsigned i = 0; i < 4; ++i) 1390b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner FieldDecls[i] = FieldDecl::Create(*this, SourceLocation(), 0, 13918e25d8681822d8094bfeb97b2239363552548171Chris Lattner FieldTypes[i]); 139271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 13934b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek CFConstantStringTypeDecl->defineBody(*this, FieldDecls, 4); 139471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 139571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 139671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 13978467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1398b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1399bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 1400bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 1401bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 1402bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 1403bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 1404bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 1405bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 1406bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 1407bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 1408bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 1409bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1410bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson FieldDecl *FieldDecls[4]; 1411bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson for (size_t i = 0; i < 4; ++i) 1412bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson FieldDecls[i] = FieldDecl::Create(*this, SourceLocation(), 0, 1413bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson FieldTypes[i]); 1414bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1415bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson ObjCFastEnumerationStateTypeDecl = 1416bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1417df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("__objcFastEnumerationState")); 1418bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 14194b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek ObjCFastEnumerationStateTypeDecl->defineBody(*this, FieldDecls, 4); 1420bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 1421bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1422bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 1423bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 1424bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1425e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1426e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 14272d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1428e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 14292d99833e8c956775f2183601cd120b65b569c867Chris Lattner return !strcmp(TT->getDecl()->getName(), "BOOL"); 143085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 143185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 143285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 143385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1434a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 143533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1436a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 143798be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 143833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 143933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 144033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 144198be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 144233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 144333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 144498be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 144598be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 144633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 144733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1448a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 144933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1450c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 145133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian std::string& S) 145233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian{ 1453c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1454ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1455a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 145633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 14577d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(Decl->getResultType(), S, EncodingRecordTypes); 145833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 145933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 146033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 146133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 146298be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 146333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 146433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 146533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 146633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 146733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 146833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1469a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1470a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 147133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 147233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 147333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 147433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 147533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 147633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 147733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 147833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 147933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 148033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1481ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 148233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 1483a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier( 1484a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->getParamDecl(i)->getObjCDeclQualifier(), S); 14857d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(PType, S, EncodingRecordTypes); 148633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1487a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 148833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 148933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 149033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1491c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 1492c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// method declaration. If non-NULL, Container must be either an 1493c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 1494c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 1495c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 1496c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 1497c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar std::string& S) 1498c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar{ 1499c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 1500c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 1501c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 1502c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1503c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 1504c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 1505c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 1506c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 1507c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1508c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = CID->propimpl_begin(), e = CID->propimpl_end(); i != e; ++i) { 1509c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1510c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1511c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1512c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1513c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1514c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1515c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1516c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1517c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1518c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 151961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 1520c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1521c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = OID->propimpl_begin(), e = OID->propimpl_end(); i != e; ++i) { 1522c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1523c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1524c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1525c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1526c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1527c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1528c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1529c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1530c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1531c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1532c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1533c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1534c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1535c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 1536c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1537c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 1538c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: GCC uses a generating_property_type_encoding mode during 1539c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // this part. Investigate. 1540c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar getObjCEncodingForType(PD->getType(), S, EncodingRecordTypes); 1541c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1542c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 1543c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 1544c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1545c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 1546c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 1547c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 1548c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 1549c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1550c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1551c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1552c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 1553c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 1554c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 1555c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 1556c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1557c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 1558c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 1559c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += PD->getGetterName().getName(); 1560c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1561c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1562c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 1563c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 1564c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += PD->getSetterName().getName(); 1565c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1566c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1567c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 1568c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 1569c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 1570c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += OID->getName(); 1571c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1572c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1573c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 1574c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 1575c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 15767d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 1577c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner llvm::SmallVector<const RecordType *, 8> &ERType) const { 1578e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // FIXME: This currently doesn't encode: 1579e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // @ An object (whether statically typed or typed id) 1580e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // # A class object (Class) 1581e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // : A method selector (SEL) 1582e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // {name=type...} A structure 1583e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // (name=type...) A union 1584e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // bnum A bit field of num bits 1585e8c49533521c40643653f943d47229e62d277f88Anders Carlsson 1586e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 158785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson char encoding; 158885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson switch (BT->getKind()) { 15897176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner default: assert(0 && "Unhandled builtin type kind"); 15907176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 15917176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 159285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_U: 15937176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 15947176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 15957176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 15967176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULong: encoding = 'L'; break; 15977176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 159885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_S: 15997176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 16007176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Short: encoding = 's'; break; 16017176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 16027176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Long: encoding = 'l'; break; 16037176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 16047176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 16057176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 16067176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 160785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 160885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 160985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += encoding; 1610c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1611a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1612c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // Treat id<P...> same as 'id' for encoding purposes. 16137d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian return getObjCEncodingForType(getObjCIdType(), S, ERType); 1614c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1615c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1616c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 161785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 1618a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (isObjCIdType(PointeeTy) || PointeeTy->isObjCInterfaceType()) { 1619c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 1620c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 1621a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 16228baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 16238baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1624a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 16258baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 16268baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1627c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 162885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 162985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 163085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 163185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 1632e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 163385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 163485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 163585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 163685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 163785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 163885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 16397d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(PT->getPointeeType(), S, ERType); 1640c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 1641c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 1642c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 164385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 164485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 164585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 164685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 164785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 164885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 164985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 16507d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(AT->getElementType(), S, ERType); 165185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 1652c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 1653c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 16546de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 16556de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian RecordDecl *RDecl= RTy->getDecl(); 1656faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff // This mimics the behavior in gcc's encode_aggregate_within(). 1657faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff // The idea is to only inline structure definitions for top level pointers 1658faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff // to structures and embedded structures. 1659faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff bool inlining = (S.size() == 1 && S[0] == '^' || 1660faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff S.size() > 1 && S[S.size()-1] != '^'); 16616de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += '{'; 16626de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += RDecl->getName(); 16637d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian bool found = false; 16647d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (unsigned i = 0, e = ERType.size(); i != e; ++i) 16657d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian if (ERType[i] == RTy) { 16667d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian found = true; 16677d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian break; 16687d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 1669faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff if (!found && inlining) { 16707d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian ERType.push_back(RTy); 16717d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 16727d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (int i = 0; i < RDecl->getNumMembers(); i++) { 16737d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian FieldDecl *field = RDecl->getMember(i); 16747d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(field->getType(), S, ERType); 16757d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 16767d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian assert(ERType.back() == RTy && "Record Type stack mismatch."); 16777d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian ERType.pop_back(); 16786de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 16796de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += '}'; 16805e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 16815e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff S += 'i'; 1682485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 1683485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff S += '^'; // This type string is the same as general pointers. 168485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } else 1685f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 168685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 168785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1688a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 1689ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 1690ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 1691ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 1692ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 1693ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 1694ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 1695ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 1696ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 1697ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 1698ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 1699ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 1700ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 1701ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 1702ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 1703ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 1704b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 1705b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 1706b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 1707b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1708b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 1709b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 1710b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1711a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 17127e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 1713a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 17147e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 17157e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 17167e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 17177e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(ptr && "'id' incorrectly typed"); 17187e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 17197e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(rec && "'id' incorrectly typed"); 17207e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 17217e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 17227e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1723a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 1724b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 1725a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 1726b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1727b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 1728b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 1729b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(ptr && "'SEL' incorrectly typed"); 1730b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 1731b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(rec && "'SEL' incorrectly typed"); 1732b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 1733b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 1734b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1735a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 1736390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 1737a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 1738390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 1739390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 1740a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 17418baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 1742a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 17438baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 17448baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 17458baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 17468baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 17478baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 17488baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 17498baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 17508baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 17518baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1752a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 1753a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 17542198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 17552198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1756a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 17572198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 17582198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1759b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1760b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1761b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 1762b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1763b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1764b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 1765b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 1766b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 1767b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 1768b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 1769b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty->isObjCQualifiedIdType()) 1770b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1771b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1772b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 1773b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 1774b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1775b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 1776b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 1777b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 1778b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty == getObjCIdType() || Ty == getObjCClassType()) 1779b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1780b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1781b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 1782b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType(); 1783b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 1784b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 17856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 17866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 17876ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 1788770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 17891c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 1790dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 1791dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 1792dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1793dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 1794dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 1795dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1796dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 1797dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1798dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 1799dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 1800dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 1801dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 1802dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 18031c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 18043c1b91223908f1848622c3da21beced6d42371d4Steve Naroff return getCanonicalType(lhs) == getCanonicalType(rhs); 18051c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 18061c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 18076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 18086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 18096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 18106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 18116ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 18126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 181361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 18146ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 18156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 18176ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 18186ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 18196ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 18203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 18213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 18226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 18236ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 18246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 18256ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 18266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 18286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 18296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 18306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 18316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 18336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 18346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 18356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 18366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 18386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 18396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 18406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(); 18416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHSP->qual_end(); 18426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(); 18436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHSP->qual_end(); 18446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 18466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 18476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 18486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 18496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 18506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner while (RHSPI != RHSPE) { 18526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 18536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 18546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (RHSProto != LHSProto) 18556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner continue; 18566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Otherwise, the RHS does have this element. 18586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ++LHSPI; 18596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (LHSPI == LHSPE) 18606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // All protocols in LHS exist in RHS. 18616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHSProto = *LHSPI; 18636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner } 18646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 18656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 18666ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 18676ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 18686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 1869ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 1870ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 1871ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 1872ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 18733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 18743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 18753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 18763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 18773d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 18783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 18793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 18803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 18813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 18823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 18833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 18843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 18853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 18863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 18873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 188861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 188961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 189061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 189161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 18923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 18933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 18943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 18953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 18963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 18973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 18983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 18993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 19003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 19023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 19033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 19043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 19063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 19073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 19083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 19093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 19103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 19113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 19123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 191361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 191461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 191561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 191661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 19173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 19183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 19193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 19203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 19213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman lproto->isVariadic()); 19223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 19233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 19253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 19263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *proto = lproto ? lproto : rproto; 19283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 19293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 19303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 19313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 19323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 19333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 19343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 19353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 19363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 19373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 19383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 19393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 19403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 19413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 19423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 19443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 19453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 19463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman proto->getNumArgs(), lproto->isVariadic()); 19473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 19483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 19503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 19513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionTypeNoProto(retType); 19523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 19533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19543d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 195543d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 195643d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 195743d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 195843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 19593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 19603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 19613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 1962c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 19633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 1964c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 19653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 19673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 19683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 1969f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 19703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 19713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 19723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 19743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers() || 19753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman LHSCan.getAddressSpace() != RHSCan.getAddressSpace()) 19763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 19773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 19783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 19793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 1980f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 19811adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 19821adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 19831adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 19841adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 19854c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 19864c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 1987a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 1988a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 1989a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 1990a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 1991a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 1992213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 1993213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 1994213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 1995ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1996b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 1997b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 1998b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 19993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 2000a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner // If the canonical type classes don't match. 20011adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass != RHSClass) { 200297341620065b89f5197b846be94c4cfad5df2af4Steve Naroff // ID is compatible with all qualified id types. 20033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHS->isObjCQualifiedIdType()) { 200497341620065b89f5197b846be94c4cfad5df2af4Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) 20053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(PT->getPointeeType())) 20063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 200797341620065b89f5197b846be94c4cfad5df2af4Steve Naroff } 20083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RHS->isObjCQualifiedIdType()) { 200997341620065b89f5197b846be94c4cfad5df2af4Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) 20103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(PT->getPointeeType())) 20113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 20123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20141adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 20151adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 20163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 20173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 20183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 2019bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 20203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 20213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 20223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 2023bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 20241adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 20253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2026ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 20273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20284a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 20291adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 20301adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 20313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 20323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 20333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 20343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 20353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 20363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 203761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 203861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 203961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 204061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 20413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 20423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20431adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 20443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 20453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 20463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 20473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 20483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 20493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 20503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 20513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 20523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 20533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 205461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 205561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 205661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 205761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 20583bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 20593bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 20603bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 20613bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 20623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 20633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 206461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 206561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 206661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 206761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 20683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 20693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 20703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 20713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 20723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 20733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 20753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 20763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 20773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 20783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 20793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20803bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 20813bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 208261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 20833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 20841adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 20853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 20863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman case Type::Tagged: 20873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 20883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(LHS) && isObjCClassType(RHS)) return LHS; 20893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCClassType(LHS) && isObjCIdType(RHS)) return LHS; 20903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 20911adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 20923cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 20933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 20943cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 20953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 20963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 209761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 20981adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 20993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Distinct ObjC interfaces are not compatible; see canAssignObjCInterfaces 21003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // for checking assignment/comparison safety 21013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 21021adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 21031adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 21043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2105ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 2106ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 21077192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 21085426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 2109ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 2110ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 2111ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 2112ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 2113ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 2114ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman // At the moment, only bool has padding bits 2115ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 2116ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2117ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2118ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 2119ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 2120ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 2121ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 2122ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 2123ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 2124ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 2125ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 2126ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 2127ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 2128ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 2129ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 2130ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 2131ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 2132ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 2133ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 2134ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 2135ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 2136ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 2137ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 2138ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 2139ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 2140ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2141ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2142ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2143ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 21445426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 21455426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 21465426bf6456a5aeac416a9150de157904d101c819Chris Lattner 21477192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 21487192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 2149e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 21505451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 21515451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 21525451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 21535451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 21547192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 2155fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 2156fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 2157a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 2158a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 215903ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 216003ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 216103ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 2162a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 2163ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 2164ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2165a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 21667192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 21677192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 21680f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 2169e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2170e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 2171e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 2172e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 2173e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2174fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 2175fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 2176fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 2177fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 21780ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2179fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 2180fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 2181e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, size_reserve); 2182fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 218303ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 218403ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 21850ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2186ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 2187ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2188a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 2189fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 2190fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 2191fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 2192