ASTContext.cpp revision e91593ef084479340582b2ba177b44be50a717b7
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Decl.h" 1649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 17980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 18e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 19e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/RecordLayout.h" 205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/SmallVector.h" 2285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 237192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Serialize.h" 247192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Deserialize.h" 2585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 32e91593ef084479340582b2ba177b44be50a717b7Daniel DunbarASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, TargetInfo &t, 33e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 34e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar unsigned size_reserve) : 35e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar CFConstantStringTypeDecl(0), 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; 586d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner unsigned NumVector = 0, NumComplex = 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; 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ReferenceType>(T)) 735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumReference; 746d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<ComplexType>(T)) 756d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumComplex; 765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ArrayType>(T)) 775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumArray; 786d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<VectorType>(T)) 796d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumVector; 805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeNoProto>(T)) 815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionNP; 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeProto>(T)) 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionP; 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<TypedefType>(T)) 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTypeName; 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (TagType *TT = dyn_cast<TagType>(T)) { 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTagged; 8839ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis switch (TT->getDecl()->getTagKind()) { 895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown tagged type!"); 9039ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_struct: ++NumTagStruct; break; 9139ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_union: ++NumTagUnion; break; 9239ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_class: ++NumTagClass; break; 9339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_enum: ++NumTagEnum; break; 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 95a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isa<ObjCInterfaceType>(T)) 96a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCInterfaces; 97a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedInterfaceType>(T)) 98a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedInterfaces; 99a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedIdType>(T)) 100a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedIds; 1016cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfType>(T)) 1026cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfTypes; 1036cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfExpr>(T)) 1046cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfExprs; 1053f128ad2691d299b96663da85a9e069c4081ea7cSteve Naroff else { 106beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner QualType(T, 0).dump(); 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(0 && "Unknown type!"); 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d builtin types\n", NumBuiltin); 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d pointer types\n", NumPointer); 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d reference types\n", NumReference); 1146d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d complex types\n", NumComplex); 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d array types\n", NumArray); 1166d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d vector types\n", NumVector); 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with proto\n", NumFunctionP); 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with no proto\n", NumFunctionNP); 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d typename (typedef) types\n", NumTypeName); 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d tagged types\n", NumTagged); 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d struct types\n", NumTagStruct); 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d union types\n", NumTagUnion); 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d class types\n", NumTagClass); 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d enum types\n", NumTagEnum); 125a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek fprintf(stderr, " %d interface types\n", NumObjCInterfaces); 126beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner fprintf(stderr, " %d protocol qualified interface types\n", 127a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedInterfaces); 128c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian fprintf(stderr, " %d protocol qualified id types\n", 129a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedIds); 1306cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof types\n", NumTypeOfTypes); 1316cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof exprs\n", NumTypeOfExprs); 1326cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "Total bytes = %d\n", int(NumBuiltin*sizeof(BuiltinType)+ 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumPointer*sizeof(PointerType)+NumArray*sizeof(ArrayType)+ 1356d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner NumComplex*sizeof(ComplexType)+NumVector*sizeof(VectorType)+ 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionP*sizeof(FunctionTypeProto)+ 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionNP*sizeof(FunctionTypeNoProto)+ 1386cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeName*sizeof(TypedefType)+NumTagged*sizeof(TagType)+ 1396cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeOfTypes*sizeof(TypeOfType)+NumTypeOfExprs*sizeof(TypeOfExpr))); 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back((R = QualType(new BuiltinType(K),0)).getTypePtr()); 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 15698be4943e8dc4f3905629a7102668960873cf863Chris Lattner if (Target.isCharSigned()) 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 17864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 17964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // C++ 3.9.1p5 18064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis InitBuiltinType(WCharTy, BuiltinType::WChar); 18164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 1867e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1877e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 188a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 1897e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 190a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 1918baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 1928baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 193a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 19433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 19533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 19633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 199464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 200464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 201464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 202a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 203b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 204b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 205b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 206b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 207b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 208b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 209b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 210b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 211b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 212b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 213b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 214b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 215b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 216b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 217a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 218a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 219d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 22098be4943e8dc4f3905629a7102668960873cf863Chris LattnerASTContext::getTypeInfo(QualType T) { 221f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner T = getCanonicalType(T); 2229e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner uint64_t Width; 223d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner unsigned Align; 224a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 225030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::TypeName: assert(0 && "Not a canonical type!"); 2265d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 2275d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 228692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: 229b1c2df99ba67ec6c29ac7dceaa4eb2c8cda4a017Chris Lattner assert(0 && "Incomplete types have no size!"); 230fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 231fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff assert(0 && "VLAs not implemented yet!"); 232fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 233fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType *CAT = cast<ConstantArrayType>(T); 234030d8846c7e520330007087e949f621989876e3aChris Lattner 23598be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 2369e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 237030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 238030d8846c7e520330007087e949f621989876e3aChris Lattner break; 2395c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 240213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 241030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 242030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 24398be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 2449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 2454bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // FIXME: This isn't right for unusual vectors 2464bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 247030d8846c7e520330007087e949f621989876e3aChris Lattner break; 248030d8846c7e520330007087e949f621989876e3aChris Lattner } 2495d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 2509e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 251a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 252692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 253d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 254d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 2556f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 2569e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 2579e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 2586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 259692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 260692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 261692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 2626f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 2639e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 2649e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 2656f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 26664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 26764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 26864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 26964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 270692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 2716f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 2729e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 2739e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 2746f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 275692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 2766f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 2779e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 2789e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 2796f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 280692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 2816f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 2829e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 2839e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 2846f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 285692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 2866f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 2879e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 2889e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 2896f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2906f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 2919e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 2929e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 2936f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2946f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 2955426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 2965426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 2976f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2986f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 2999e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 3009e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 3016f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 302a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 303bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 304ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb case Type::ASQual: 30598be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 30698be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 30798be4943e8dc4f3905629a7102668960873cf863Chris Lattner return getTypeInfo(QualType(cast<ASQualType>(T)->getBaseType(), 0)); 308a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 3095426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 310f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 3116f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 312f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 313f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 3145426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 315f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 316f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 317f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 318a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner case Type::Reference: 3197ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 3205d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 3216f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 3226f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 323bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 3245d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 3255d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 3265d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 3275d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 3285d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 32998be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 3309e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 3315d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 3325d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 3335d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 33444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 33544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 33644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 33744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 33844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 33944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 34044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 3417176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case Type::Tagged: { 3428389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (cast<TagType>(T)->getDecl()->isInvalidDecl()) { 3438389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 3448389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 3458389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 3468389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 3478389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 3487176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner if (EnumType *ET = dyn_cast<EnumType>(cast<TagType>(T))) 3497176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 3507176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 3517176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner RecordType *RT = cast<RecordType>(T); 3527176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 3537176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 3547176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 355dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 356a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 3577176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 358d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 359464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 3609e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 361a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 362a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 3638b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 3648b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 3658b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel bool IsUnion, bool StructIsPacked, 3668b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 3678b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel bool FieldIsPacked = StructIsPacked || FD->getAttr<PackedAttr>(); 3688b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 3698b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 3708b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 3718b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3728b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 3738b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 3748b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 3758b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel llvm::APSInt I(32); 3768b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel bool BitWidthIsICE = 3778b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel BitWidthExpr->isIntegerConstantExpr(I, Context); 3788b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel assert (BitWidthIsICE && "Invalid BitField size expression"); 3798b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = I.getZExtValue(); 3808b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3818b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 3828b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 3838b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 3848b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3858b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 3868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldIsPacked) 3878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 3888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 3898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 3908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 3928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 3938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 3948b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 3958b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3968b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 3978b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 3988b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 3998b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4008389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 4018389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 4028b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 4038b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 4048b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 4058b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 406c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 4078b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 4088b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 4108b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 4118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 4128b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 4138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4148b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldIsPacked) 4168b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 8; 4178b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 4188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 4198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4208b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 4218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 4228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4248b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 4258b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 4268b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4278b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 4288b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 4298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 4308b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4318b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 4328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4338b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4348b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 4358b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 4368b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 4378b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 43844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 43944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// getASTObjcInterfaceLayout - Get or compute information about the layout of the 44044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// specified Objective C, which indicates its size and ivar 44144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// position information. 44244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 44344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang PatelASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 44444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 44544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout *&Entry = ASTObjCInterfaces[D]; 44644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (Entry) return *Entry; 44744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 44844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 44944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 4506a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 4516a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned FieldCount = D->ivar_size(); 4526a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 4536a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel FieldCount++; 4546a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 4556a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 4566a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel uint64_t Size = SL.getSize(); 4576a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(Size, Alignment); 4586a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 4596a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->SetFieldOffset(0, 0); // Super class is at the beginning of the layout. 4606a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 4616a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(); 4626a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 4636a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 46444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Entry = NewEntry; 46544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 46644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel bool IsPacked = D->getAttr<PackedAttr>(); 46744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 46844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 46944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 47044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 47144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 47244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 47344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 47444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 47544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 47644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 47744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->LayoutField(Ivar, i++, false, IsPacked, *this); 47844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 47944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 48044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 48144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 48244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 48344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 48444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 48544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 48688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 487464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 488464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 48998be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 490464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(D->isDefinition() && "Cannot get layout of forward declarations!"); 4914bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 492464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 49388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 494464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 4954bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 49688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 49788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 49888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 499464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 5004bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5018b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->InitializeLayout(D->getNumMembers()); 5024bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman bool StructIsPacked = D->getAttr<PackedAttr>(); 50339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 504464175bba1318bef7905122e9fda20cff926df78Chris Lattner 5054bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 5068b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 5078b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 5084bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5094bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 5104bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 5114bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman for (unsigned i = 0, e = D->getNumMembers(); i != e; ++i) { 5124bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman const FieldDecl *FD = D->getMember(i); 5138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->LayoutField(FD, i, IsUnion, StructIsPacked, *this); 514464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 5154bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5164bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 5174bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 5188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 5195d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 520464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 521464175bba1318bef7905122e9fda20cff926df78Chris Lattner 522a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 523a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 524a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 525a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 526ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher LambQualType ASTContext::getASQualType(QualType T, unsigned AddressSpace) { 527f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 528f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 529f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 530f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 531f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Type's cannot have multiple ASQuals, therefore we know we only have to deal 532f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // with CVR qualifiers from here on out. 533f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(CanT.getAddressSpace() == 0 && 534f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner "Type is already address space qualified"); 535f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 536f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Check if we've already instantiated an address space qual'd type of this 537f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // type. 538ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 539f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType::Profile(ID, T.getTypePtr(), AddressSpace); 540ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 541ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (ASQualType *ASQy = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 542ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb return QualType(ASQy, 0); 543ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 544ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 545ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 546ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 547ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (!T->isCanonical()) { 548f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getASQualType(CanT, AddressSpace); 549ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 550ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // Get the new insert position for the node we care about. 551ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualType *NewIP = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos); 552ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb assert(NewIP == 0 && "Shouldn't be in the map!"); 553ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 554f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType *New = new ASQualType(T.getTypePtr(), Canonical, AddressSpace); 555ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualTypes.InsertNode(New, InsertPos); 556ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 557f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return QualType(New, T.getCVRQualifiers()); 558ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 559ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 560a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 5665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 5675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 5685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 5715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 5725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 5765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 577f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 5785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 5805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 5815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *New = new ComplexType(T, Canonical); 5845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 5865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 5875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 606f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 6075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 6105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *New = new PointerType(T, Canonical); 6135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 6155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getReferenceType - Return the uniqued reference to the type for a reference 6195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to the specified type. 6205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getReferenceType(QualType T) { 6215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ReferenceType *RT = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 634f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getReferenceType(getCanonicalType(T)); 6355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *NewIP = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *New = new ReferenceType(T, Canonical); 6425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceTypes.InsertNode(New, InsertPos); 6445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 647fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 648fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 649fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 650c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 651c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 652c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 6535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 654fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType::Profile(ID, EltTy, ArySize); 6555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6577192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 6587192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 665f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 666c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6687192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 6697192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 6707192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 6725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 674c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ConstantArrayType *New = new ConstantArrayType(EltTy, Canonical, ArySize, 675c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 6767192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 681bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 682bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 683c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 684c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 685c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 686c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 687c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 688c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 689c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayType *New = new VariableArrayType(EltTy, QualType(), NumElts, 690c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 691c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 692c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 693c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 694c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 695c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 696c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 697c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 698c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 699c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 700c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 701c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType::Profile(ID, EltTy); 702c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 703c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 704c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 705c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 706c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 707c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 708c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 709c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 710c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 711c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 712c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 713f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 7142bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 715c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 716c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 717c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 718c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 719c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 720c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman assert(NewIP == 0 && "Shouldn't be in the map!"); 7212bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 722c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 723c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *New = new IncompleteArrayType(EltTy, Canonical, 724c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 725c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 726c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 727c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 728c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 729fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 730fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 73173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 73273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 73373322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 7345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 736f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 73773322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 74173322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 750f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *New = new VectorType(vecType, NumElts, Canonical); 7575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 762213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 76373322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 764213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 76573322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 76673322924127c873c13101b705dd823f5539ffa5fSteve Naroff 767f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 768213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 76973322924127c873c13101b705dd823f5539ffa5fSteve Naroff 77073322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 77173322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 772213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 77373322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 77473322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 77573322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 77673322924127c873c13101b705dd823f5539ffa5fSteve Naroff 77773322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 77873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 77973322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 78073322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 781213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 78273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 78373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 78473322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 78573322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(NewIP == 0 && "Shouldn't be in the map!"); 78673322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 787213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman ExtVectorType *New = new ExtVectorType(vecType, NumElts, Canonical); 78873322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 78973322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 79073322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 79173322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 79273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 7935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 7945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 7955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionTypeNoProto(QualType ResultTy) { 7965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 7975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto::Profile(ID, ResultTy); 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeNoProto *FT = 8035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos)) 8045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 8055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 808f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionTypeNoProto(getCanonicalType(ResultTy)); 8095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *NewIP = 8125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos); 8135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 8145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *New = new FunctionTypeNoProto(ResultTy, Canonical); 8175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 81856cd7e3848c2d59ca2ec3b72d0834192edf0bcdfEli Friedman FunctionTypeNoProtos.InsertNode(New, InsertPos); 8195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 8235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionType(QualType ResultTy, QualType *ArgArray, 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs, bool isVariadic) { 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 8275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic); 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FTP = 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos)) 8345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 8375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 8435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 848f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 850f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isVariadic); 8535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *NewIP = 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos); 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FunctionTypeProto objects are not allocated with new because they have a 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // variable size array (for parameter types) at the end of them. 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *FTP = 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer (FunctionTypeProto*)malloc(sizeof(FunctionTypeProto) + 864942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner NumArgs*sizeof(QualType)); 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer new (FTP) FunctionTypeProto(ResultTy, ArgArray, NumArgs, isVariadic, 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Canonical); 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.InsertNode(FTP, InsertPos); 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8722ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 8732ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 8742ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas GregorQualType ASTContext::getTypeDeclType(TypeDecl *Decl) { 8752ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 8762ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 8772ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (TypedefDecl *Typedef = dyn_cast_or_null<TypedefDecl>(Decl)) 8782ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 8792ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor else if (ObjCInterfaceDecl *ObjCInterface 8802ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor = dyn_cast_or_null<ObjCInterfaceDecl>(Decl)) 8812ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 88249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 88349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis if (CXXRecordDecl *CXXRecord = dyn_cast_or_null<CXXRecordDecl>(Decl)) 88449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis Decl->TypeForDecl = new CXXRecordType(CXXRecord); 88549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else if (RecordDecl *Record = dyn_cast_or_null<RecordDecl>(Decl)) 8862ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Decl->TypeForDecl = new RecordType(Record); 88749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else if (EnumDecl *Enum = dyn_cast_or_null<EnumDecl>(Decl)) 8882ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Decl->TypeForDecl = new EnumType(Enum); 88949aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 8902ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 89149aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 89249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis Types.push_back(Decl->TypeForDecl); 89349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 8942ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 8952ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 8995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 901f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 902c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Decl->TypeForDecl = new TypedefType(Type::TypeName, Decl, Canonical); 9035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 9045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 907a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 9083536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 909a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 9103536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9113536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 912a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->TypeForDecl = new ObjCInterfaceType(Type::ObjCInterface, Decl); 9133536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 9143536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 9153536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 9163536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 91788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 91888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 91988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 92088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 92188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner return strcmp(LHS->getName(), RHS->getName()) < 0; 92288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 92388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 92488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 92588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 92688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 92788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 92888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 92988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 93088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 93188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 93288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 93388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 93488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 93588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 93688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 937065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 938065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 939a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 940a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 94188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 94288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 94388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 9444b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 945b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 9464b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 9474b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 948a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 949a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 9504b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 9514b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 9524b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 953a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 954a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek new ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 9554b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 956a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 9574b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 9584b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 9594b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 96088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 96188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 96262f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 963c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 96488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 96588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 96688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 967c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 968a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 969c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 970c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 971a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 97262f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 973c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 974c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 975c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 97662f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdType *QType = new ObjCQualifiedIdType(Protocols, NumProtocols); 977c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 978a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 979c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 980c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 981c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 9829752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 9839752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 9849752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 9859752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 9869752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 9878d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 988f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 9899752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfExpr *toe = new TypeOfExpr(tofExpr, Canonical); 9909752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 9919752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 992d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 993d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 9949752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 9959752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 9969752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 9979752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 9989752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 999d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1000f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 10019752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfType *tot = new TypeOfType(tofType, Canonical); 10029752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 10039752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1004d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1005d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1009d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 10102ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // On Darwin, size_t is defined as a "long unsigned int". 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: should derive from "Target". 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return UnsignedLongTy; 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 102255f4b02bc71e7347986c6a5249bef635aac1901aArgyrios Kyrtzidis/// getWCharType - Return the unique type for "wchar_t" (C99 7.17), the 1023fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 1024fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 102555f4b02bc71e7347986c6a5249bef635aac1901aArgyrios KyrtzidisQualType ASTContext::getWCharType() const { 102664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (LangOpts.CPlusPlus) 102764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 102864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1029fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman // On Darwin, wchar_t is defined as a "int". 1030fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman // FIXME: should derive from "Target". 1031fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman return IntTy; 1032fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 1033fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 103464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 103564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 103664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 103764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 103864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 103964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 104064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 104164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 104264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 104364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 104464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 104564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 104664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 104764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 10488b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 10498b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 10508b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 10518b9023ba35a86838789e2c9034a6128728c547aaChris Lattner // On Darwin, ptrdiff_t is defined as a "int". This seems like a bug... 10528b9023ba35a86838789e2c9034a6128728c547aaChris Lattner // FIXME: should derive from "Target". 10538b9023ba35a86838789e2c9034a6128728c547aaChris Lattner return IntTy; 10548b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 10558b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1056e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1057e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1058e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1059e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 106077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 106177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 106277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 106377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 106477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 106577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 106677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 106777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1068c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1069c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1070c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1071c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1072c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1073c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1074c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1075c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1076c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1077c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1078c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1079c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1080c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1081c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1082c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1083c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1084c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1085c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1086c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1087c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1088c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1089c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1090c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1091c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // FIXME: What is the ownership of size expressions in VLAs? 1092c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1093c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1094c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1095c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1096c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1097c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1098c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1099c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1100c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1101c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1102c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1103c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1104c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1105c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1106c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1107c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1108c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1109c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1110c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Make sure to look through type qualifiers (like ASQuals) for the negative 1111c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1112c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1113c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1114c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1115c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1116c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1117c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1118c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1119c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1120c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1121c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1122c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1123c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1124c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1125c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1126c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1127c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Rip through ASQualType's and typedefs to get to a concrete type. 1128c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1129c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ASQualType *ASQT = dyn_cast<ASQualType>(Ty)) { 1130c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner AddrSpace = ASQT->getAddressSpace(); 1131c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = ASQT->getBaseType(); 1132c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1133c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1134c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1135c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1136c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1137c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1138c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1139c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1140c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1141c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1142c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1143c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1144c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1145c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1146c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1147c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1148c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1149c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1150c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1151c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1152c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getASQualType(NewEltTy, AddrSpace); 1153c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1154c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1155c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1156c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1157c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1158c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1159c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1160c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1161c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1162c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1163c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1164c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // FIXME: What is the ownership of size expressions in VLAs? 1165c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1166c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1167c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1168c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 116977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 117077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 117177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1172e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1173e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1174e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1175e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1176e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1177e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1178e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1179c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1180c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1181c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1182c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1183c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1184c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1185e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1186c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1187e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1188e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1189c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1190e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1191e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1194a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1195ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1197a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1198ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1199a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 12035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1206716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1207716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1208716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1209716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 12101361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 12111361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 12121361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 12131361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 12141361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1215716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1216f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1217f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1218f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1219f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1220f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 12211361b11066239ea15764a2a844405352d87296b3Chris Lattner 12221361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 12231361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 12241361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 12251361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 12261361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 12271361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 12327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 12337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 12347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1235a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1236a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1237a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1238a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1239a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1240fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1241a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1242fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1243fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1246f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1247f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1248f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1249f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1250f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1251f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1252f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1253f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1254f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 12557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 12567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 12577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 12587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 12597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 12607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 12617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 12627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 12637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 12647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 12657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 12667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 12677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 12687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 12697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 12707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 12717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 12727cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 12737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 12747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1275f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1276f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1277f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 12787cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 12797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 12807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 12817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1282f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1283f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 12847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 12855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1286f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1287f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 12907cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 12915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 12937cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 12947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 12957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 12967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 12977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 12987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 12997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 13007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 13017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 13027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 13037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 13047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 13057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 13067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 13077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 13087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 13097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 13107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 13117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 13147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 13157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 13167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 13175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 131871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 131971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 132071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 132171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 13226c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 132339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1324c63e660882ff93841fa234d70ef6757038302b92Chris Lattner &Idents.get("NSConstantString"), 0); 1325f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 132671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 132771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 132871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1329f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1330f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 133171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1332f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 133371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1334f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 133571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // Create fields 1336f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldDecl *FieldDecls[4]; 133771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 1338f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson for (unsigned i = 0; i < 4; ++i) 1339b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner FieldDecls[i] = FieldDecl::Create(*this, SourceLocation(), 0, 13408e25d8681822d8094bfeb97b2239363552548171Chris Lattner FieldTypes[i]); 134171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 134271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson CFConstantStringTypeDecl->defineBody(FieldDecls, 4); 134371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 134471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 134571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 13468467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1347b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1348e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1349e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 13502d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1351e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 13522d99833e8c956775f2183601cd120b65b569c867Chris Lattner return !strcmp(TT->getDecl()->getName(), "BOOL"); 135385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 135485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 135585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 135685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1357a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 135833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1359a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 136098be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 136133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 136233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 136333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 136498be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 136533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 136633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 136798be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 136898be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 136933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 137033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1371a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 137233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1373a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForMethodDecl(ObjCMethodDecl *Decl, 137433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian std::string& S) 137533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian{ 1376ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1377a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 137833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 13797d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(Decl->getResultType(), S, EncodingRecordTypes); 138033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 138133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 138233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 138333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 138498be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 138533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 138633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 138733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 138833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 138933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 139033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1391a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1392a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 139333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 139433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 139533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 139633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 139733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 139833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 139933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 140033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 140133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 140233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1403ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 140433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 1405a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier( 1406a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->getParamDecl(i)->getObjCDeclQualifier(), S); 14077d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(PType, S, EncodingRecordTypes); 140833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1409a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 141033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 141133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 141233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 14137d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 1414c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner llvm::SmallVector<const RecordType *, 8> &ERType) const { 1415e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // FIXME: This currently doesn't encode: 1416e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // @ An object (whether statically typed or typed id) 1417e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // # A class object (Class) 1418e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // : A method selector (SEL) 1419e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // {name=type...} A structure 1420e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // (name=type...) A union 1421e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // bnum A bit field of num bits 1422e8c49533521c40643653f943d47229e62d277f88Anders Carlsson 1423e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 142485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson char encoding; 142585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson switch (BT->getKind()) { 14267176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner default: assert(0 && "Unhandled builtin type kind"); 14277176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 14287176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 142985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_U: 14307176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 14317176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 14327176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 14337176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULong: encoding = 'L'; break; 14347176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 143585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_S: 14367176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 14377176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Short: encoding = 's'; break; 14387176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 14397176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Long: encoding = 'l'; break; 14407176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 14417176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 14427176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 14437176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 144485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 144585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 144685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += encoding; 1447c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1448a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1449c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // Treat id<P...> same as 'id' for encoding purposes. 14507d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian return getObjCEncodingForType(getObjCIdType(), S, ERType); 1451c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1452c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1453c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 145485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 1455a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (isObjCIdType(PointeeTy) || PointeeTy->isObjCInterfaceType()) { 1456c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 1457c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 1458a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 14598baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 14608baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1461a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 14628baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 14638baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1464c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 146585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 146685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 146785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 146885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 1469e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 147085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 147185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 147285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 147385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 147485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 147585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 14767d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(PT->getPointeeType(), S, ERType); 1477c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 1478c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 1479c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 148085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 148185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 148285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 148385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 148485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 148585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 148685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 14877d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(AT->getElementType(), S, ERType); 148885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 1489c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 1490c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 14916de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 14926de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian RecordDecl *RDecl= RTy->getDecl(); 14936de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += '{'; 14946de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += RDecl->getName(); 14957d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian bool found = false; 14967d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (unsigned i = 0, e = ERType.size(); i != e; ++i) 14977d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian if (ERType[i] == RTy) { 14987d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian found = true; 14997d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian break; 15007d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 15017d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian if (!found) { 15027d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian ERType.push_back(RTy); 15037d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 15047d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (int i = 0; i < RDecl->getNumMembers(); i++) { 15057d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian FieldDecl *field = RDecl->getMember(i); 15067d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(field->getType(), S, ERType); 15077d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 15087d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian assert(ERType.back() == RTy && "Record Type stack mismatch."); 15097d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian ERType.pop_back(); 15106de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 15116de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += '}'; 15125e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 15135e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff S += 'i'; 151485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } else 1515f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 151685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 151785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1518a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 1519ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 1520ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 1521ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 1522ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 1523ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 1524ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 1525ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 1526ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 1527ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 1528ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 1529ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 1530ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 1531ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 1532ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 1533ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 1534b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 1535b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 1536b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 1537b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1538b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 1539b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 1540b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1541a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 15427e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 1543a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCIdType.isNull() && "'id' type already set!"); 15447e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1545a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 15467e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 15477e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 15487e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 15497e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(ptr && "'id' incorrectly typed"); 15507e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 15517e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(rec && "'id' incorrectly typed"); 15527e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 15537e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 15547e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1555a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 1556b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 1557a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCSelType.isNull() && "'SEL' type already set!"); 1558b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1559a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 1560b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1561b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 1562b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 1563b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(ptr && "'SEL' incorrectly typed"); 1564b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 1565b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(rec && "'SEL' incorrectly typed"); 1566b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 1567b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 1568b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1569a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 1570390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 1571a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCProtoType.isNull() && "'Protocol' type already set!"); 1572a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 1573390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 1574390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 1575a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 15768baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 1577a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCClassType.isNull() && "'Class' type already set!"); 15788baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1579a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 15808baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 15818baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 15828baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 15838baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 15848baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 15858baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 15868baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 15878baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 15888baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1589a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 1590a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 15912198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 15922198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1593a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 15942198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 15952198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1596b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1597b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1598b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 1599b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1600b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1601b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 1602b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 1603b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 1604b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 1605b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 1606b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty->isObjCQualifiedIdType()) 1607b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1608b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1609b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 1610b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 1611b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1612b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 1613b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 1614b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 1615b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty == getObjCIdType() || Ty == getObjCClassType()) 1616b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1617b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1618b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 1619b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType(); 1620b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 1621b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 16226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 16236ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 16246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 1625770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 162678eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner/// C99 6.2.7p1: If both are complete types, then the following additional 162778eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner/// requirements apply. 162878eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner/// FIXME (handle compatibility across source files). 162978eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattnerstatic bool areCompatTagTypes(TagType *LHS, TagType *RHS, 163078eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner const ASTContext &C) { 1631ab373097926c4f24dd653e8b9aebcbf2eff17881Steve Naroff // "Class" and "id" are compatible built-in structure types. 163278eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner if (C.isObjCIdType(QualType(LHS, 0)) && C.isObjCClassType(QualType(RHS, 0)) || 163378eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner C.isObjCClassType(QualType(LHS, 0)) && C.isObjCIdType(QualType(RHS, 0))) 1634ab373097926c4f24dd653e8b9aebcbf2eff17881Steve Naroff return true; 1635d57405250498a1b5f23c97c6e089318f6f3eefd7Eli Friedman 163678eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner // Within a translation unit a tag type is only compatible with itself. Self 163778eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner // equality is already handled by the time we get here. 163878eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner assert(LHS != RHS && "Self equality not handled!"); 163978eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner return false; 1640ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1641ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1642ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroffbool ASTContext::pointerTypesAreCompatible(QualType lhs, QualType rhs) { 1643ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // C99 6.7.5.1p2: For two pointer types to be compatible, both shall be 1644ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // identically qualified and both shall be pointers to compatible types. 1645f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner if (lhs.getCVRQualifiers() != rhs.getCVRQualifiers() || 1646f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner lhs.getAddressSpace() != rhs.getAddressSpace()) 1647ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1648ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 164928be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner QualType ltype = lhs->getAsPointerType()->getPointeeType(); 165028be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner QualType rtype = rhs->getAsPointerType()->getPointeeType(); 1651ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1652ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return typesAreCompatible(ltype, rtype); 1653ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1654ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1655ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroffbool ASTContext::functionTypesAreCompatible(QualType lhs, QualType rhs) { 165628be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner const FunctionType *lbase = lhs->getAsFunctionType(); 165728be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner const FunctionType *rbase = rhs->getAsFunctionType(); 1658ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 1659ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 1660ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1661ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // first check the return types (common between C99 and K&R). 1662ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (!typesAreCompatible(lbase->getResultType(), rbase->getResultType())) 1663ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1664ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1665ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (lproto && rproto) { // two C99 style function prototypes 1666ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff unsigned lproto_nargs = lproto->getNumArgs(); 1667ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff unsigned rproto_nargs = rproto->getNumArgs(); 1668ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1669ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (lproto_nargs != rproto_nargs) 1670ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1671ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1672ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // both prototypes have the same number of arguments. 1673ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if ((lproto->isVariadic() && !rproto->isVariadic()) || 1674ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff (rproto->isVariadic() && !lproto->isVariadic())) 1675ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1676ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1677ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // The use of ellipsis agree...now check the argument types. 1678ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff for (unsigned i = 0; i < lproto_nargs; i++) 1679f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff // C99 6.7.5.3p15: ...and each parameter declared with qualified type 1680f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff // is taken as having the unqualified version of it's declared type. 1681ba03eda1599dd89da935a2b46da10659afe46addSteve Naroff if (!typesAreCompatible(lproto->getArgType(i).getUnqualifiedType(), 1682f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff rproto->getArgType(i).getUnqualifiedType())) 1683ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1684ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1685ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 16865426bf6456a5aeac416a9150de157904d101c819Chris Lattner 1687ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (!lproto && !rproto) // two K&R style function decls, nothing to do. 1688ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1689ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1690ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // we have a mixture of K&R style with C99 prototypes 1691ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff const FunctionTypeProto *proto = lproto ? lproto : rproto; 1692ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff if (proto->isVariadic()) 1693ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1694ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1695ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // FIXME: Each parameter type T in the prototype must be compatible with the 1696ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // type resulting from applying the usual argument conversions to T. 1697ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; 1698ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1699ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1700acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner// C99 6.7.5.2p6 1701acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattnerstatic bool areCompatArrayTypes(ArrayType *LHS, ArrayType *RHS, ASTContext &C) { 1702acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner // Constant arrays must be the same size to be compatible. 1703acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner if (const ConstantArrayType* LCAT = dyn_cast<ConstantArrayType>(LHS)) 1704acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner if (const ConstantArrayType* RCAT = dyn_cast<ConstantArrayType>(RHS)) 1705acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner if (RCAT->getSize() != LCAT->getSize()) 1706acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner return false; 17074e92acf3b747b994e50fbf7bfe8ef71cdda20c50Eli Friedman 17088c7bbb5347a74f7f470231a149dd3455fbe0bcc6Chris Lattner // Compatible arrays must have compatible element types 17098c7bbb5347a74f7f470231a149dd3455fbe0bcc6Chris Lattner return C.typesAreCompatible(LHS->getElementType(), RHS->getElementType()); 1710ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 1711ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 17126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 17136ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 17146ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 17156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 17166ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 17176ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 17186ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 17196ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 17206ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 17216ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatObjCInterfaces - Return true if the two interface types are 17226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 17236ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 17246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 17255426bf6456a5aeac416a9150de157904d101c819Chris Lattnerstatic bool areCompatObjCInterfaces(const ObjCInterfaceType *LHS, 17265426bf6456a5aeac416a9150de157904d101c819Chris Lattner const ObjCInterfaceType *RHS) { 17276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 17286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 17296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 17306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 17316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 17326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 17336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 17346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 17356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 17366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 17376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 17386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 17396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 17406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 17416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 17426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 17436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 17446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 17456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(); 17466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHSP->qual_end(); 17476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(); 17486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHSP->qual_end(); 17496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 17506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 17516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 17526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 17536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 17546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 17556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 17566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner while (RHSPI != RHSPE) { 17576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 17586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 17596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (RHSProto != LHSProto) 17606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner continue; 17616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 17626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Otherwise, the RHS does have this element. 17636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ++LHSPI; 17646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (LHSPI == LHSPE) 17656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // All protocols in LHS exist in RHS. 17666ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 17676ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHSProto = *LHSPI; 17686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner } 17696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 17706ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 17716ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 17726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 17736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 17746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 1775ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 1776ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 1777ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 1778ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 1779c4e405996217f4be20f73186da53b23b5c4783dcChris Lattnerbool ASTContext::typesAreCompatible(QualType LHS_NC, QualType RHS_NC) { 178028be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner QualType LHS = getCanonicalType(LHS_NC); 178128be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner QualType RHS = getCanonicalType(RHS_NC); 1782988ee6ef540d1203cf4aa52971f3c135c796bdf7Chris Lattner 178343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 178443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 178543d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 178643d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 1787c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (ReferenceType *RT = dyn_cast<ReferenceType>(LHS)) 1788c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 1789c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (ReferenceType *RT = dyn_cast<ReferenceType>(RHS)) 1790c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 17911adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 1792f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 1793f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner if (LHS == RHS) 1794f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner return true; 1795f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 1796f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If qualifiers differ, the types are different. 1797a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner unsigned LHSAS = LHS.getAddressSpace(), RHSAS = RHS.getAddressSpace(); 1798a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHS.getCVRQualifiers() != RHS.getCVRQualifiers() || LHSAS != RHSAS) 1799f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner return false; 1800a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 1801a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner // Strip off ASQual's if present. 1802a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSAS) { 1803a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHS = LHS.getUnqualifiedType(); 1804a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHS = RHS.getUnqualifiedType(); 1805a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner } 1806f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 1807c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner Type::TypeClass LHSClass = LHS->getTypeClass(); 1808c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner Type::TypeClass RHSClass = RHS->getTypeClass(); 18091adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 18101adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 18111adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 18121adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 18131adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 18144c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 18154c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 1816a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 1817a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 1818a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 1819a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 1820a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 1821213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 1822213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 1823213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 1824ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1825b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 1826b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 1827b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 1828b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner 1829a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner // If the canonical type classes don't match. 18301adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass != RHSClass) { 1831b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // ID is compatible with all interface types. 1832b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (isa<ObjCInterfaceType>(LHS)) 1833b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner return isObjCIdType(RHS); 1834b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (isa<ObjCInterfaceType>(RHS)) 1835b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner return isObjCIdType(LHS); 183697341620065b89f5197b846be94c4cfad5df2af4Steve Naroff 183797341620065b89f5197b846be94c4cfad5df2af4Steve Naroff // ID is compatible with all qualified id types. 183897341620065b89f5197b846be94c4cfad5df2af4Steve Naroff if (isa<ObjCQualifiedIdType>(LHS)) { 183997341620065b89f5197b846be94c4cfad5df2af4Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) 184097341620065b89f5197b846be94c4cfad5df2af4Steve Naroff return isObjCIdType(PT->getPointeeType()); 184197341620065b89f5197b846be94c4cfad5df2af4Steve Naroff } 184297341620065b89f5197b846be94c4cfad5df2af4Steve Naroff if (isa<ObjCQualifiedIdType>(RHS)) { 184397341620065b89f5197b846be94c4cfad5df2af4Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) 184497341620065b89f5197b846be94c4cfad5df2af4Steve Naroff return isObjCIdType(PT->getPointeeType()); 184597341620065b89f5197b846be94c4cfad5df2af4Steve Naroff } 18461adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 18471adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 1848c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (LHS->isEnumeralType() && RHS->isIntegralType()) { 1849c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner EnumDecl* EDecl = cast<EnumType>(LHS)->getDecl(); 1850c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return EDecl->getIntegerType() == RHS; 1851bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 1852c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner if (RHS->isEnumeralType() && LHS->isIntegralType()) { 1853c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner EnumDecl* EDecl = cast<EnumType>(RHS)->getDecl(); 1854c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return EDecl->getIntegerType() == LHS; 1855bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 18561adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 1857ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return false; 1858ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 1859a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 18604a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 18611adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 1862a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::ASQual: 1863a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::FunctionProto: 1864a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::VariableArray: 1865a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::IncompleteArray: 1866a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner case Type::Reference: 1867b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner case Type::ObjCQualifiedInterface: 1868a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner assert(0 && "Canonicalized away above"); 18691adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 1870c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return pointerTypesAreCompatible(LHS, RHS); 18711adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 1872acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner return areCompatArrayTypes(cast<ArrayType>(LHS), cast<ArrayType>(RHS), 1873acc9972da24df89ea283d6f979ffbd0e4fa0e1a5Chris Lattner *this); 18741adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 1875c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner return functionTypesAreCompatible(LHS, RHS); 18761adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Tagged: // handle structures, unions 187778eca286b0898e98bb2cee943b4ecbea9cc07dd6Chris Lattner return areCompatTagTypes(cast<TagType>(LHS), cast<TagType>(RHS), *this); 18781adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 18793cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 18803cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner return false; 18813cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 18823cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner return areCompatVectorTypes(cast<VectorType>(LHS), cast<VectorType>(RHS)); 18831adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 1884b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner return areCompatObjCInterfaces(cast<ObjCInterfaceType>(LHS), 1885b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner cast<ObjCInterfaceType>(RHS)); 18861adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 18871adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 1888ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 1889ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return true; // should never get here... 1890ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 18917192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 18925426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 1893ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 1894ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 1895ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 1896ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 1897ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 1898ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman // At the moment, only bool has padding bits 1899ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 1900ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 1901ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 1902ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 1903ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 1904ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 1905ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 1906ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 1907ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 1908ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 1909ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 1910ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 1911ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 1912ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 1913ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 1914ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 1915ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 1916ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 1917ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 1918ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 1919ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 1920ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 1921ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 1922ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 1923ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 1924ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 1925ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 1926ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 1927ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 19285426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 19295426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 19305426bf6456a5aeac416a9150de157904d101c819Chris Lattner 19317192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 19327192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 1933e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 19345451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 19355451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 19365451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 19375451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 19387192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 1939fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 1940fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 1941a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 1942a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 194303ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 194403ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 194503ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 1946a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 1947ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 1948ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 1949a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 19507192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 19517192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 19520f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 1953e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 1954e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 1955e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 1956e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 1957e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 1958fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 1959fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 1960fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 1961fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 19620ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 1963fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 1964fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 1965e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, size_reserve); 1966fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 196703ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 196803ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 19690ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 1970ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 1971ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 1972a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 1973fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 1974fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 1975fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 1976