ASTContext.cpp revision 1b63e4f732dbc73d90abf886b4d21f8e3a165f6d
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 1549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 16980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 17aaba5e346dffdbad5d1c42765a89e4a7afb0da67Douglas Gregor#include "clang/AST/DeclTemplate.h" 18e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 192cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor#include "clang/AST/ExternalASTSource.h" 20e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/RecordLayout.h" 211b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner#include "clang/Basic/Builtins.h" 22a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 2485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 256fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 26557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner#include "llvm/Support/MemoryBuffer.h" 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3361710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 35e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 361b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 371b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner bool FreeMem, unsigned size_reserve) : 38ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 39ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor ObjCFastEnumerationStateTypeDecl(0), SourceMgr(SM), LangOpts(LOpts), 402cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor FreeMemory(FreeMem), Target(t), Idents(idents), Selectors(sels), 411b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner BuiltinInfo(builtins), ExternalSource(0) { 42e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 43e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 44e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 45d249e1d1f1498b81314459ceda19d6ff25c278adDouglas Gregor PrintingPolicy.CPlusPlus = LangOpts.CPlusPlus; 46e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 47e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 514b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 54b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 55b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 56b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 57b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 65b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 66b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 67b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 68b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 73ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 741ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 751ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 761ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNSEnd = NestedNameSpecifiers.end(); 77e7dcd782df0e1cc3a63e429a866098e69db39153Douglas Gregor NNS != NNSEnd; 781ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 791ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 80ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 81ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 82ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 83ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 84b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 872cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid 882cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 892cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 902cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 912cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 957c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 96dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 97dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) 0, 98dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 99dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 100dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 101dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 102c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 105dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 108dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 109dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 110dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 111dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 112dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 113dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 115dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 116dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 117dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 118dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1192cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1202cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1212cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1222cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1232cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 128f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Types.push_back((R = QualType(new (*this,8) BuiltinType(K),0)).getTypePtr()); 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 14015b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 16264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1632df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1642df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1652df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1662df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1673a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1683a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1693a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1703a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 17164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1728e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 173898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 174898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 175898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 176898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 177898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 178898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 179898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 180898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 1818e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 1868e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 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); 1976e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 1986e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 1996e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 202464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 203464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 204464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 205a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 206b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 207b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 208b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 209b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 210b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 211b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 212b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 213b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 214b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 215b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 216b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 217b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 218b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 219af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// getDeclAlign - Return a conservative estimate of the alignment of the 220af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 221af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 222b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 223dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 224dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 225dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 226dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 227dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 228af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 229af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 2304cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson if (const ReferenceType* RT = T->getAsReferenceType()) { 2314cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 232f0930235ce58a91aa3b840bece9052f44d630536Anders Carlsson Align = Target.getPointerAlign(AS); 2334cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson } else if (!T->isIncompleteType() && !T->isFunctionType()) { 2344cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 235dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 236dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 237dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 238dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 239dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 240af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 241dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 242dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 243af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 244b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 245a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 246a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 247d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 2481d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 2495e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 2505e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 251a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 25272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 25372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 25418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 25572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 25672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 25718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 25872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 25972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 2605d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 2615d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 26218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 26318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 26418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 26518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 26618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 26772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 268fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 26918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 27018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 27118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 27218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 273fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 2741d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 275030d8846c7e520330007087e949f621989876e3aChris Lattner 27698be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 2779e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 278030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 279030d8846c7e520330007087e949f621989876e3aChris Lattner break; 2805c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 281213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 282030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 283030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 28498be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 2859e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 2864bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 2876fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 2886fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 2896fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 2906fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 291030d8846c7e520330007087e949f621989876e3aChris Lattner break; 292030d8846c7e520330007087e949f621989876e3aChris Lattner } 2935d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 2949e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 295a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 296692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 297d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 29818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 29918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 30018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 30118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 30218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 3036f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 3049e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 3059e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 3066f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 307692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 308692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 309692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 3106f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 3119e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 3129e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 3136f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 31464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 31564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 31664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 31764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 318692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 3196f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 3209e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 3219e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 3226f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 323692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 3246f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 3259e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 3269e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 3276f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 328692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 3296f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 3309e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 3319e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 3326f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 333692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 3346f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 3359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 3369e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 3376f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 338ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 339ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 340ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 341ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 342ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 3436f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 3449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 3459e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 3466f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3476f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 3485426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 3495426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 3506f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3516f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 3529e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 3539e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 3546f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3556e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 3566e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 3576e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 3581590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 359a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 360bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 361f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 362f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 363f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 364f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 365736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 366f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 367f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 368f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian case Type::ExtQual: 36998be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 37098be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 371f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian return getTypeInfo(QualType(cast<ExtQualType>(T)->getBaseType(), 0)); 372a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 37372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 3745426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 375f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 3766f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 377485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 378485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 379485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 380485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 381485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 382485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 383f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 384f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 3855426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 386f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 387f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 388f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 3897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 3907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 3917ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 3925d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 3936f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 3946f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 395bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 396f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 3971cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // FIXME: This is ABI dependent. We use the Itanium C++ ABI. 3981cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // http://www.codesourcery.com/public/cxx-abi/abi.html#member-pointers 3991cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // If we ever want to support other ABIs this needs to be abstracted. 4001cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson 401f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 4021cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson std::pair<uint64_t, unsigned> PtrDiffInfo = 4031cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 4041cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 405f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 406f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 4071cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 4081cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 409f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 4105d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 4115d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 4125d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 4135d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 41498be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 4159e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 4165d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 4175d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 4185d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 41944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 4201d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 42144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 42244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 42344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 42444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 42544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 42672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 42772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 4281d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 4291d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 4301d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 4318389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 4328389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 4338389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 4348389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 4358389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 4361d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 4377176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 4387176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 4391d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 4407176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 4417176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 4427176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 443dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 444a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 4457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 44618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 44718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 44818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 44918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = Aligned->getAlignment(); 45018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 45118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 45218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 4537532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 4547176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 45518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 45618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 45718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 45818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 45918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 46018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 46118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 46218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 46318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 46418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 46518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 46618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 46718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(getCanonicalType(T) != T && 46818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 46918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 47018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 47118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 47218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 47318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 474d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 475464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 4769e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 477a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 478a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 47934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 48034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 48134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 48234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 48334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 48434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 4851eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 4861eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 4871eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (const ComplexType* CT = T->getAsComplexType()) 4881eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 4891eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 4901eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 4911eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 4921eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 49334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 49434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 49534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 49634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 4978b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 4988b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 4993b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 5008b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 5013b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 5028b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 5038b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 5048b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 5053b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 5063b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 5073b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 5083b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 5093b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 5108b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 5128b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 5138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 5149a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman FieldSize = BitWidthExpr->EvaluateAsInt(Context).getZExtValue(); 5158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5168b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 5178b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 5188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 5198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5203b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 5213b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 5223b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 5233b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 5243b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 5258b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 5263b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 5273b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 5288b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 5298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 5308b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5318b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 5328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 5338b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 5348b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 5358b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5368b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 5378b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 5388b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 5398b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5408389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 5418389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 5428b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 5438b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 5448b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 5458b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 546c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 5478b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 5482f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson } else if (const ReferenceType *RT = FD->getType()->getAsReferenceType()) { 5492f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 5502f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson FieldSize = Context.Target.getPointerWidth(AS); 5512f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson FieldAlign = Context.Target.getPointerAlign(AS); 5528b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5538b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 5548b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 5558b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 5568b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 5578b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5588b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5593b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 5603b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 5613b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 5623b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 5633b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 5643b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 5653b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 5663b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 5673b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 5688b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 5698b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 5708b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5718b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 5728b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 5738b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5748b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5758b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 5768b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 5778b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5788b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 5798b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 5808b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 5818b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5828b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 5838b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5848b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 585d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar // Remember the next available offset. 586d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar NextOffset = Size; 587d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar 5888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 5898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 5908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 5918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 592a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 593a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 594a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 595a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 596a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 597f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 598a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 599a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 600a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 601a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 602a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 603a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 604a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 605a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 606a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 607a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 608a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 609a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 6108e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 6118e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 6128e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 6138e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 6148e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 6158e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 6168e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 6178e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 6188e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 6198e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 6208e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 6218e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 6228e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 6238e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 6249820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 6259820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 6269820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(*this), 6279820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->prop_end(*this); I != E; ++I) 6289820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 6299820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 6309820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 6319820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 6329820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 6339820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 6349820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 6359820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 6369820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 6379820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 6389820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 6399820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 6409820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 6419820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 6429820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(*this), 6439820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = OI->prop_end(*this); I != E; ++I) { 6449820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 6459820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 6469820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 6479820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 6489820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 6499820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 6509820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 6519820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 6529820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 6539820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 6549820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 6559820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 6568e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 6578e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 6588e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(*this), 6598e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->prop_end(*this); I != E; ++I) 6608e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 6618e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 6628e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 6638e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 6648e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 6658e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 6668e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 6678e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 6688e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 6698e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 6708e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) 6718e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian{ 6728e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 6738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(*this), 6748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->prop_end(*this); I != E; ++I) { 6758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 6768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 6778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 6788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 6798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 6808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 6818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 6828e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 6838e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 6848e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 6858e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 6868e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 6878e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 688b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 689b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 690b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 691b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 692b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 69344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 694b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 695b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 696532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 697532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 69844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 699d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCContainerDecl *Key = 700d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 701d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 702d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 70344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 704453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar unsigned FieldCount = D->ivar_size(); 705453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 706453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 7078e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 7088e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian FieldCount += SynthCount; 709d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 710453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 711453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 712453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 7138e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 714453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 715453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 716453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 7176a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 7186a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 7196a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 7206a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 721d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar 722913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // We start laying out ivars not at the end of the superclass 723913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // structure, but at the next byte following the last field. 724913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar uint64_t Size = llvm::RoundUpToAlignment(SL.NextOffset, 8); 725d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar 726d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(Size, Alignment); 7276a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 7286a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 729d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(); 7306a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 7316a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 73244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 7333b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 7343b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 7353b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 73644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 73744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 73844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 73944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 74044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 74144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 74244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 7438e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVector<ObjCIvarDecl*, 16> Ivars; 7448e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ShallowCollectObjCIvars(D, Ivars, Impl); 7458e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (unsigned k = 0, e = Ivars.size(); k != e; ++k) 7468e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian NewEntry->LayoutField(Ivars[k], i++, false, StructPacking, *this); 7478e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 74844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 74944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 75044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 75144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 75244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 75344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 754b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 755b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 756b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 757b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 758b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 759b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 760b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 761b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 762b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 763b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 76488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 765464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 766464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 76798be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 7684b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 7694b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 7704bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 771464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 77288a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 773464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 7744bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 77588a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 77688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 77788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 778464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 7794bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 780e267ff35b2f4e9d2b0d8bf24109d41cc7398b61bDouglas Gregor // FIXME: Avoid linear walk through the fields, if possible. 7816ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor NewEntry->InitializeLayout(std::distance(D->field_begin(*this), 7826ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor D->field_end(*this))); 78339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 784464175bba1318bef7905122e9fda20cff926df78Chris Lattner 7853b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 7863b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 7873b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 7883b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 7894bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 7908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 7918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 7924bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 7934bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 7944bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 79544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 7966ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (RecordDecl::field_iterator Field = D->field_begin(*this), 7976ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldEnd = D->field_end(*this); 79844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 79944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 8004bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 8014bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 8024bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 8031590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl NewEntry->FinalizeLayout(getLangOptions().CPlusPlus); 8045d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 805464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 806464175bba1318bef7905122e9fda20cff926df78Chris Lattner 807a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 808a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 809a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 810a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 811f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 812f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 813f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 814f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 815b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 816b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 817b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 818b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 819b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr = QualType::GCNone; 820b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 821b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 822b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 823b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 824b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 825b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getAddressSpace() == 0 && 826b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 827b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttr = EQT->getObjCGCAttr(); 828b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 829b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 830f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 831b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Check if we've already instantiated this type. 832ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 833b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 834ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 835f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 836b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 837b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 838ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 839ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 840ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 841b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (!TypeNode->isCanonical()) { 842f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Canonical = getAddrSpaceQualType(CanT, AddressSpace); 843ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 844b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 845f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 846f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 847ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 848b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 849b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 850f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 851ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 852b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 853ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 854ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 855b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 856b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr) { 857d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 858b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 859d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 860d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 8614027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 8624027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType Pointee = T->getAsPointerType()->getPointeeType(); 8634027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (Pointee->isPointerType()) { 8644027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 8654027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 8664027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 8674027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 868b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 869b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 870b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 871b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 872b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned AddressSpace = 0; 873b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 874b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 875b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 876b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 877b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getObjCGCAttr() == QualType::GCNone && 878b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 879b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner AddressSpace = EQT->getAddressSpace(); 880b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 881b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 882d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 883d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check if we've already instantiated an gc qual'd type of this type. 884d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian llvm::FoldingSetNodeID ID; 885b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 886d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian void *InsertPos = 0; 887d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 888b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 889d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 890d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // If the base type isn't canonical, this won't be a canonical type either, 891d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // so fill in the canonical type field. 8925a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: Isn't this also not canonical if the base type is a array 8935a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // or pointer type? I can't find any documentation for objc_gc, though... 894d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType Canonical; 895d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (!T->isCanonical()) { 896b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Canonical = getObjCGCQualType(CanT, GCAttr); 897d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 898b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 899d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 900d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 901d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 902b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 903b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 904d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 905d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Types.push_back(New); 906b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 907d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 908a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 9205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 925f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 929f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 931f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 937f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 938f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 939f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 940f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 941f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 942f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 943f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 944f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 962f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 9635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 966f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 968f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9745618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 9755618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 9765618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 977296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 978296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 9795618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 9805618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 9815618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 9825618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 9835618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 9845618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 9855618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 9865618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 9875618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 988296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 9895618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 9905618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 9915618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 9925618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 9935618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 9945618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 9955618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 9965618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 997f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9985618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 999f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 10005618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 10015618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 10025618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 10035618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 10045618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 10057c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 10067c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 10077c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 10125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10147c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 10157c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 10177c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 10227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 10237c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10247c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 10257c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 10267c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 10277c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10287c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 10297c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10307c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *New = new (*this,8) LValueReferenceType(T, Canonical); 10317c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 10327c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 10337c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 10347c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 10357c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10367c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 10377c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 10387c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 10397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 10407c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 10417c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 10427c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 10437c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10447c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 10457c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 10467c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10477c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 10487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 10507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 10517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 10527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 10537c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 10547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10567c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 10577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1058f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *New = new (*this,8) RValueReferenceType(T, Canonical); 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1067f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1068f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 1069f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 1070f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 1071f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1072f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1073f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1074f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1075f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1076f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1077f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1078f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1079f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1080f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1081f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1082f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1083f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1084f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1085f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1086f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1087f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1088f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1089f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1090f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1091f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1092f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 1093f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1094f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1095f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1096f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1097f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1098fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 1099fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 1100fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 110138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1102c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1103c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1104587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman assert((EltTy->isDependentType() || EltTy->isConstantSizeType()) && 1105587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1106587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 110738aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 110838aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 110938aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 111038aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 111138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11130be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11167192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 11177192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 1124f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1125c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 11265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11277192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 11287192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1129f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1132566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 1133f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 11347192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1139bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1140bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 1141c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 1142c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1143c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1144c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1145c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1146c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1147566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 1148f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)VariableArrayType(EltTy,QualType(), NumElts, ASM, EltTypeQuals); 1149c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1150c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1151c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1152c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1153c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1154c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1155898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1156898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 1157898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 1158898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 1159898574e7496ba8fd76290079d3a9d06954992734Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, Expr *NumElts, 1160898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 1161898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor unsigned EltTypeQuals) { 1162898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1163898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1164898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1165898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 1166898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 1167898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1168566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek DependentSizedArrayType *New = 1169f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) DependentSizedArrayType(EltTy, QualType(), NumElts, 1170f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ASM, EltTypeQuals); 1171898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1172898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 1173898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1174898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1175898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1176898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1177c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1178c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1179c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1180c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 11810be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1182c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1183c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 1184c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 1185c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1186c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1187c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1188c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1189c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1190c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1191c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1192c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1193f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 11942bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1195c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1196c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1197c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1198c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1199f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12002bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1201c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1202f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff IncompleteArrayType *New = new (*this,8) IncompleteArrayType(EltTy, Canonical, 1203566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ASM, EltTypeQuals); 1204c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1205c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1206c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1207c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1208fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1209fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 121073322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 121173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 121273322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1215f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 121673322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 122073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 12215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 12235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 12245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 12265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1229f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1233f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1235f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1241213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 124273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1243213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 124473322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 124573322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1246f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1247213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 124873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 124973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 125073322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1251213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 125273322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 125373322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 125473322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 125573322924127c873c13101b705dd823f5539ffa5fSteve Naroff 125673322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 125773322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 125873322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 125973322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1260213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 126173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 126273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 126373322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1264f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 126573322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1266f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 126773322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 126873322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 126973322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 127073322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 127173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 127272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 12735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 127472564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy) { 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 12765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 127872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType::Profile(ID, ResultTy); 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 128172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionNoProtoType *FT = 128272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 12845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 128772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy)); 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 129072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 129172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1292f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 129572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *New =new(*this,8)FunctionNoProtoType(ResultTy,Canonical); 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 129772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 12985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 130361710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1304971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1305465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1306465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 1307465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl const QualType *ExArray) { 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 13095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 13105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 131172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1312465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1313465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs, ExArray); 13145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 131672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionProtoType *FTP = 131772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1319465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1320465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 13215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 1322465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl if (hasExceptionSpec) 1323465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl isCanonical = false; 13245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 13255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 13265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 13275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1329465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 13305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 13315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 13325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 13335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 13345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1335f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 1336465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1337f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1338beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 1339bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl isVariadic, TypeQuals); 1340465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 13415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 134272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 134372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1344f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1346465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 134772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1348465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1349465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 135072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *FTP = 1351465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1352465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 1353465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs*sizeof(QualType), 8); 135472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1355465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1356465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl ExArray, NumExs, Canonical); 13575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 135872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 13595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13622ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 13632ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 13644b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 13651e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 13662ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13672ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 13681e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 13692ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1370fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1371fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 1372fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 13732ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 137449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1375c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1376566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1377566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1378f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1379f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 1380566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1381566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1382566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1383566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1384f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1385f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 13864b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 138749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 13882ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 138949aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 13904b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 139149aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 13922ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 13932ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 13945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 13955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 13965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 13975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1399f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 140072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Decl->TypeForDecl = new(*this,8) TypedefType(Type::Typedef, Decl, Canonical); 14015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 14025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 14035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1405a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 14063536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 14073b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel DunbarQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl) { 14083536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 14093536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 14103b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar ObjCInterfaceDecl *OID = const_cast<ObjCInterfaceDecl*>(Decl); 14113b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar Decl->TypeForDecl = new(*this,8) ObjCInterfaceType(Type::ObjCInterface, OID); 14123536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 14133536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 14143536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 14153536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1416fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 1417fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// parameter with the given depth, index, and (optionally) name. 1418fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas GregorQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 1419fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1420fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 1421fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType::Profile(ID, Depth, Index, Name); 1422fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 1423fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType *TypeParm 1424fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1425fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1426fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1427fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1428fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1429fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (Name) 1430fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, Name, 1431fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor getTemplateTypeParmType(Depth, Index)); 1432fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else 1433fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index); 1434fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1435fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1436fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1437fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1438fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1439fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1440fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 144155f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorQualType 14427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 14437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 14447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 14457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 144640808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor if (!Canon.isNull()) 144740808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor Canon = getCanonicalType(Canon); 1448fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 144955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor llvm::FoldingSetNodeID ID; 14507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType::Profile(ID, Template, Args, NumArgs); 145140808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 145255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void *InsertPos = 0; 14537532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType *Spec 14547532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 145555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 145655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (Spec) 145755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 145855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 14597532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *Mem = Allocate((sizeof(TemplateSpecializationType) + 146040808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 146140808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 8); 14627532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor Spec = new (Mem) TemplateSpecializationType(Template, Args, NumArgs, Canon); 146355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 14647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 146555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 146655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 146755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 146855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1469e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas GregorQualType 1470ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1471e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1472e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1473ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1474e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1475e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 1476e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameType *T 1477e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1478e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1479e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1480e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1481ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, 1482ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1483e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1484e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1485e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1486e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1487e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1488d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1489d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1490d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1491d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1492d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1493d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1494d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1495d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1496d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1497d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1498d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1499d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1500d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1501d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1502d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 1503d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType *T 1504d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1505d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1506d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1507d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1508d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1509d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1510d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 1511d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1512d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1513d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 15141734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorQualType 15151734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorASTContext::getTypenameType(NestedNameSpecifier *NNS, 15161734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 15171734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 15181734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 15191734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15201734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 15211734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 15221734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 15231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 15241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 15251734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = CanonType->getAsTemplateSpecializationType(); 15261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 15271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 15281734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 15291734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15301734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15321734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 15331734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 15341734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15351734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 15361734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType *T 15371734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 15381734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 15391734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 15401734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15411734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 15421734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 15431734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 15441734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 15451734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 15461734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 154788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 154888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 154988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 155088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 15512e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 155288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 155388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 155488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 155588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 155688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 155788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 155888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 155988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 156088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 156188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 156288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 156388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 156488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 156588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 156688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1567065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1568065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1569a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1570a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 157188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 157288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 157388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 15744b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1575b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 15764b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 15774b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1578a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1579a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 15804b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 15814b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 15824b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1583a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1584f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 1585566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek 15864b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1587a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 15884b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 15894b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 15904b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 159188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 159288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 159362f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1594c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 159588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 159688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 159788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1598c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1599a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1600c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1601c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1602a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 160362f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1604c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1605c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1606c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 1607566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ObjCQualifiedIdType *QType = 1608f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedIdType(Protocols, NumProtocols); 1609c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1610a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1611c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1612c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1613c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 161472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 161572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 16169752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 16179752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 16189752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 161972564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 1620f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 162172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor TypeOfExprType *toe = new (*this,8) TypeOfExprType(tofExpr, Canonical); 16229752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 16239752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1624d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1625d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 16269752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 16279752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 16289752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 16299752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 16309752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1631d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1632f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1633f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 16349752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 16359752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1636d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1637d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 16385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 16405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1641d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 16422ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 16435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 16465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 16475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1649b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 16505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 165264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 165364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 165464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 165564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 165664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 165764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 165864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 165964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 166064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 166164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 166264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 166364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 166464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 166564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 16668b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 16678b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 16688b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1669b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 16708b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 16718b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1672e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1673e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1674e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1675e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 167677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 167777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 167877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 167977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 168077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 168177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 168277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 168377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1684c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1685c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1686c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1687c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1688c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1689c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1690c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1691c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1692c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1693c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1694c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1695c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1696c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1697c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1698c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1699c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1700c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1701c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1702c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1703c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1704c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1705c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1706c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1707898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1708898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1709898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1710898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1711898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1712c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1713c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1714c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1715c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1716c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1717c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 17187da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas GregorDecl *ASTContext::getCanonicalDecl(Decl *D) { 1719c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor if (!D) 1720c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor return 0; 1721c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor 17227da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (TagDecl *Tag = dyn_cast<TagDecl>(D)) { 17237da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor QualType T = getTagDeclType(Tag); 17247da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return cast<TagDecl>(cast<TagType>(T.getTypePtr()->CanonicalType) 17257da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor ->getDecl()); 17267da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 17277da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 17287da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (ClassTemplateDecl *Template = dyn_cast<ClassTemplateDecl>(D)) { 17297da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Template->getPreviousDeclaration()) 17307da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Template = Template->getPreviousDeclaration(); 17317da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return Template; 17327da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 17337da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 17347da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (const FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) { 17357da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Function->getPreviousDeclaration()) 17367da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Function = Function->getPreviousDeclaration(); 17377da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return const_cast<FunctionDecl *>(Function); 17387da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 17397da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 17407da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (const VarDecl *Var = dyn_cast<VarDecl>(D)) { 17417da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Var->getPreviousDeclaration()) 17427da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Var = Var->getPreviousDeclaration(); 17437da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return const_cast<VarDecl *>(Var); 17447da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 17457da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 17467da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return D; 17477da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor} 17487da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 174925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 175025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 175125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 175225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 17537da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return TemplateName(cast<TemplateDecl>(getCanonicalDecl(Template))); 175425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 175525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 175625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 175725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 175825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 175925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 1760d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 1761d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 1762d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (!NNS) 1763d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1764d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1765d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 1766d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 1767d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 1768d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 1769d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 1770d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 1771d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1772d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 1773d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 1774d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 1775d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 1776d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1777d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 1778d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 1779d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 1780d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *Prefix = 0; 1781d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1782d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: This isn't the right check! 1783d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T->isDependentType()) 1784d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Prefix = getCanonicalNestedNameSpecifier(NNS->getPrefix()); 1785d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1786d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, Prefix, 1787d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 1788d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 1789d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1790d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1791d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 1792d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 1793d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 1794d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1795d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1796d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 1797d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1798d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1799d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1800c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1801c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1802c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1803c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1804c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1805c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1806c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1807c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1808c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1809c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1810c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1811c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1812f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Make sure to look through type qualifiers (like ExtQuals) for the negative 1813c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1814c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1815c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1816c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1817c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1818c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1819c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1820c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1821c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1822c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1823c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1824c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1825c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1826c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1827c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1828c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1829f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Rip through ExtQualType's and typedefs to get to a concrete type. 1830c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1831f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(Ty)) { 1832f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian AddrSpace = EXTQT->getAddressSpace(); 1833f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Ty = EXTQT->getBaseType(); 1834c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1835c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1836c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1837c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1838c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1839c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1840c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1841c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1842c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1843c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1844c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1845c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1846c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1847c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1848c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1849c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1850c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1851c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1852c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1853c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1854f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian NewEltTy = getAddrSpaceQualType(NewEltTy, AddrSpace); 1855c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1856c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1857c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1858c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1859c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1860c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1861c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1862c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1863c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1864c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1865898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1866898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1867898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1868898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1869898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1870898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1871898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1872898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1873c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1874c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1875c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1876c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1877c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 187877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 187977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 188077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1881e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1882e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1883e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1884e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1885e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1886e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1887e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1888c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1889c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1890c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1891c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1892c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1893c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1894e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1895c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1896e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1897e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1898c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1899e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1900e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1901d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 19026183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 19036183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 19046183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 19056183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 19066183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 19076183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 19086183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 19096183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 19105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 19115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1912a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1913ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 19145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1915a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1916d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 1917ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1918a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 19195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 19205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 19215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 19225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1925716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1926716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1927716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1928716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 19291361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 19301361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 19311361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 19321361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 19331361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1934716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1935f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1936f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1937f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1938f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1939f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 19401361b11066239ea15764a2a844405352d87296b3Chris Lattner 19411361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 19421361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 19431361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 19441361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 19451361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 19461361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 19475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 19517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 19527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 19537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1954a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1955a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1956a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1957a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1958a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1959fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1960a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1961fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1962fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 19635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1965f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1966f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1967f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1968f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 1969f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1970f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 1971f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 1972f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 1973f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 1974f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 1975f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 19761b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 1977f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 1978f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 1979f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 19807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 19817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 1982f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 19837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 19847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 19857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 19867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 1987f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 19887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 19897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 1990f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 19917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 19927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 1993f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 19947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 19957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 1996f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 19977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 19987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 1999f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 20002df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 20012df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 20022df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2003f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2004f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2005f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 20067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 20077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 20087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 20097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2010f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2011f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 20127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 20135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2014f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2015f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 20165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 20187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 20195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 20217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 20227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 20237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 20247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 20257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 20267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 20277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 20287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 20297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 20307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 20317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 20327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 20337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 20347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 20357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 20367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 20377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 20387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 20397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 20405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 20427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 20437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 20447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 20455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 204671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 204771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 204871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 204971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 20506c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 205139ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2052df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2053f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 205471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 205571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 205671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 2057f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2058f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 205971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 2060f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 206171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 2062f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 206371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 206444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 206544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 206644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 206744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 206844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 20694afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 20706ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor CFConstantStringTypeDecl->addDecl(*this, Field); 207144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 207244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 207344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 207471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 207571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 207671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 20778467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2078b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2079319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 2080319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2081319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2082319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2083319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2084319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2085bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 2086bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 2087bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 208844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 208944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 209044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 209144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2092bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2093bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2094bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 2095bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2096bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2097bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2098bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 2099bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 210044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 210144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 210244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 210344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 210444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 21054afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 21066ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor ObjCFastEnumerationStateTypeDecl->addDecl(*this, Field); 210744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 2108bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 210944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2110bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 2111bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2112bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2113bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2114bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2115319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 2116319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2117319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2118319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2119319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2120319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2121e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2122e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 21232d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2124e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2125bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2126bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 212785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 212885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 212985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 213085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2131a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 213233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2133a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 213498be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 213533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 213633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 213733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 213898be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 213933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 214033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 214198be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 214298be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 214333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 214433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2145a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 214633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 2147c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2148e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2149c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2150ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2151a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 215233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 21530d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 215433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 215533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 215633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 215733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 215898be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 215933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 216033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 216133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 216289951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 216389951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 216489951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 216589951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 2166a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 216733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 216833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 216933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 217033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 217133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 217233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 217333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 217433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 217589951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 217689951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 217789951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 21784306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 21794306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 2180ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 2181ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 2182ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 2183bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 2184ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2185ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 2186ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2187ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 218833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 21894306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 21900d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 219133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2192a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 219333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 219433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 219533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2196c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 219783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2198c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2199c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 220083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 220183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 220283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 220383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 220483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 220583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 220683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 220783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 220883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 220983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 221083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 221183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 221283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 221383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 221483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 221583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 221683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 221783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 221883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 221983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 222083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 2221c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2222c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2223e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2224c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2225c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2226c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2227c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2228c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2229c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 2230c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 2231c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2232c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2233653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i = CID->propimpl_begin(*this), e = CID->propimpl_end(*this); 2234653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2235c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2236c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2237c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2238c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2239c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2240c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2241c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2242c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2243c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2244c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 224561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2246c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2247653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i = OID->propimpl_begin(*this), e = OID->propimpl_end(*this); 2248653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2249c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2250c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2251c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2252c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2253c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2254c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2255c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2256c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2257c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2258c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2259c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2260c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2261c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2262c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 2263c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2264c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 2265090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 2266090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 2267153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 2268090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 2269090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 2270c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2271c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 2272c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 2273c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2274c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 2275c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 2276c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 2277c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 2278c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2279c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2280c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2281c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 2282c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 2283c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 2284c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 2285c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2286090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2287090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 2288090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 2289c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2290c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 2291077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 2292c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2293c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2294c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2295c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 2296077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 2297c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2298c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2299c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 2300c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2301c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 230239f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 2303c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2304c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2305c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 2306c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 2307c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2308a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 2309a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 2310c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian/// 'l' or 'L' , but not always. For typedefs, we need to use 2311a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2312a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 2313a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 2314a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 2315a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 2316c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 2317c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2318a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 2319c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian else 2320c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 2321c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2322a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 2323a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2324a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2325a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 2326a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 23277d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 2328153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 232982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 233082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 233182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 233282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 23335b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 23345b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 233582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 233682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 23378b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 2338153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 23398b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 23408b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 23418b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 23429a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 23438b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 23448b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 23458b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 23468b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 234782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 234882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 234982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 2350153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 2351090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 23526ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 2353e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 235443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD && FD->isBitField()) { 23558b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 235685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 235743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else { 235843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian char encoding; 235943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian switch (BT->getKind()) { 236043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian default: assert(0 && "Unhandled builtin type kind"); 236143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Void: encoding = 'v'; break; 236243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Bool: encoding = 'B'; break; 236343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_U: 236443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UChar: encoding = 'C'; break; 236543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UShort: encoding = 'S'; break; 236643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UInt: encoding = 'I'; break; 236772696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::ULong: 236872696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 236972696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 237072696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 23712df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 237243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULongLong: encoding = 'Q'; break; 237343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_S: 237443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::SChar: encoding = 'c'; break; 237543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Short: encoding = 's'; break; 237643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Int: encoding = 'i'; break; 237772696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::Long: 237872696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 237972696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 238072696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 238143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongLong: encoding = 'q'; break; 23822df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 238343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Float: encoding = 'f'; break; 238443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Double: encoding = 'd'; break; 238543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongDouble: encoding = 'd'; break; 238643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 238785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 238843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += encoding; 238943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2390c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson } else if (const ComplexType *CT = T->getAsComplexType()) { 2391c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 2392c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 2393c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 2394c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson } else if (T->isObjCQualifiedIdType()) { 2395090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(getObjCIdType(), S, 2396090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandPointedToStructures, 2397090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandStructures, FD); 2398090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 2399090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Note that we do extended encoding of protocol qualifer list 2400090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Only when doing ivar or property encoding. 2401090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian const ObjCQualifiedIdType *QIDT = T->getAsObjCQualifiedIdType(); 2402090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2403446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff for (ObjCQualifiedIdType::qual_iterator I = QIDT->qual_begin(), 2404446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff E = QIDT->qual_end(); I != E; ++I) { 2405090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2406446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff S += (*I)->getNameAsString(); 2407090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2408090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2409090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2410090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2411090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian return; 2412c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 2413c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 241485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2415a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2416a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2417a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2418a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2419a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 2420a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(T.getTypePtr())) { 2421a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2422a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2423a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2424a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2425a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2426a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 2427a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 2428a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian while (P->getAsPointerType()) 2429a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian P = P->getAsPointerType()->getPointeeType(); 2430a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 2431a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2432a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2433a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2434a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2435a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 2436a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 2437a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 2438a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 2439a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 2440a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 2441a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2442a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 2443a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 2444a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2445a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2446389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(PointeeTy)) { 2447c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 2448c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 2449c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian } 2450c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian else if (PointeeTy->isObjCInterfaceType()) { 2451bb99bdec7d3e704485baffae85938d24d35f0e0fFariborz Jahanian if (!EncodingProperty && 2452225dfd7d6b0ed14e6b7ad8dc121161b9f34ecfceFariborz Jahanian isa<TypedefType>(PointeeTy.getTypePtr())) { 24533e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // Another historical/compatibility reason. 24543e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // We encode the underlying type which comes out as 24553e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // {...}; 24563e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian S += '^'; 24573e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 24583e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian false, ExpandPointedToStructures, 24593e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian NULL); 24603e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian return; 24613e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian } 2462c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian S += '@'; 2463090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 246486f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian const ObjCInterfaceType *OIT = 246586f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian PointeeTy.getUnqualifiedType()->getAsObjCInterfaceType(); 2466090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCInterfaceDecl *OI = OIT->getDecl(); 2467adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2468adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += OI->getNameAsCString(); 2469446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff for (ObjCInterfaceType::qual_iterator I = OIT->qual_begin(), 2470446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff E = OIT->qual_end(); I != E; ++I) { 2471090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2472446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff S += (*I)->getNameAsString(); 2473090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2474090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2475adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2476adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian } 2477c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian return; 2478389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff } else if (isObjCClassStructType(PointeeTy)) { 24798baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 24808baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2481a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 24828baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 24838baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2484c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 248585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 248685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 248785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 248885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2489e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 249085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 249185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 249285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 249385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 249485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 249585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2496a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2497a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2498a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 2499d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 250043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2501c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 2502c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 2503c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 2504559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 2505559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 2506559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 2507559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 2508559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2509559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2510559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 2511559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 251285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2513559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2514559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 2515559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 2516559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 2517559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 2518559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 2519559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 252085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2521559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2522559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2523559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 2524559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 2525c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 2526c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 25276de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 252882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2529d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2530502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2531502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2532502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2533502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2534502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2535502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 25360d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 25377d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 25386ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (RecordDecl::field_iterator Field = RDecl->field_begin(*this), 25396ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldEnd = RDecl->field_end(*this); 254044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 254143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2542d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 254344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2544d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2545d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2546d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2547d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 254843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 254943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 255043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2551d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2552a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2553a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2554a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 255543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2556d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 25577d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 25586de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2559d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 25605e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 25618b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 25628b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 25638b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 25648b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2565485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 256621a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 256743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } else if (T->isObjCInterfaceType()) { 256843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 256943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 257043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 257143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 257243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 257343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 2574f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 257543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 2576f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 257743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 257843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 257943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 258043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 258143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 258243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 258343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 258443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 258543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 258643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 2587f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 258885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 258985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2590a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 2591ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 2592ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 2593ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 2594ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 2595ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 2596ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 2597ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 2598ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 2599ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 2600ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 2601ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 2602ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 2603ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 2604ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 2605ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 2606b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 2607b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 2608b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 2609b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2610b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 2611b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 2612b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2613319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCIdType(QualType T) 26147e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 2615319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCIdType = T; 2616319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2617319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2618319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2619319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2620319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2621319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 26227e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 26237e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 26247e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2625c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2626c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2627c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 26287e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2629c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2630c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2631c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 26327e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 26337e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 26347e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 2635319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCSelType(QualType T) 2636b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 2637319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 2638319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2639319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2640319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2641319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2642319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 2643b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2644b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 2645b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2646c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2647c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2648b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2649c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2650c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2651b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 2652b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 2653b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2654a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 2655390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 2656a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 2657390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 2658390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 2659319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCClassType(QualType T) 26608baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 2661319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCClassType = T; 2662319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2663319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2664319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2665319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2666319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 26678baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 26688baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 26698baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 26708baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 26718baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 26728baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 26738baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 26748baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 26758baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 2676a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 2677a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 26782198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 26792198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2680a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 26812198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 26822198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 26837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 26847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 26857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 26867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 26877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 26887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 26897532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 26907532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 26917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 26927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 26937532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 26947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 26957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 26967532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 26977532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 26987532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 26997532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 27007532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 27017532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27027532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 27037532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 27047532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 27057532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 27067532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(NNS->isDependent() && "Nested name specifier must be dependent"); 27077532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27087532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 27097532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 27107532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27117532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 27127532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 27137532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 27147532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27157532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 27167532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 27177532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27187532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 27197532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 27207532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 27217532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 27227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 27237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 27247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 27257532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 27277532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 27287532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 27297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 2730b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 2731d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 2732d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 2733d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 2734b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 2735b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 2736b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 2737b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 2738b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 2739b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 2740b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 2741b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 2742b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 2743b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 2744b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 2745b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 2746b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 2747b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 2748b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 2749b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2750b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2751b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 2752b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2753b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2754fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 2755fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 2756fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 2757fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 2758fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 2759fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 2760fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 2761fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TD->getAttr<ObjCNSObjectAttr>()) 2762fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2763fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2764fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 2765fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 2766fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2767b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 2768b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 2769b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 2770b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 2771b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 2772d461777e23204fe8c480302d8ff76f5847605da6Steve Naroff if (Ty->isObjCQualifiedIdType()) 2773b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2774b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 27756ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 27766ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 27776ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 27786ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 27796ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 278016ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner const PointerType *PT = Ty->getAsPointerType(); 278116ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (PT == 0) 2782b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 2783b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2784b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 278516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (PT->getPointeeType()->isObjCInterfaceType() || 278616ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // If is has NSObject attribute, OK as well. 278716ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner isObjCNSObjectType(Ty)) 2788fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2789fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 279016ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // Check to see if this is 'id' or 'Class', both of which are typedefs for 279116ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // pointer types. This looks for the typedef specifically, not for the 279216ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // underlying type. Iteratively strip off typedefs so that we can handle 279316ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // typedefs of typedefs. 279416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner while (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 279516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (Ty.getUnqualifiedType() == getObjCIdType() || 279616ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner Ty.getUnqualifiedType() == getObjCClassType()) 279716ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner return true; 279816ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner 279916ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner Ty = TDT->getDecl()->getUnderlyingType(); 280016ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner } 280116ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner 280216ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner return false; 2803b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 2804b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 28054fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 28064fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 28074fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 28084fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz JahanianQualType::GCAttrTypes ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 2809b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttrs = QualType::GCNone; 28104fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 28114fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 2812b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 28134fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 2814a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // (or pointers to them) be treated as though they were declared 2815a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 2816a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (GCAttrs == QualType::GCNone) { 2817a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (isObjCObjectPointerType(Ty)) 2818a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian GCAttrs = QualType::Strong; 2819a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 2820a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian return getObjCGCAttrKind(Ty->getAsPointerType()->getPointeeType()); 2821a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 2822c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 2823c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 28248df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (!Ty->isPointerType() && !isObjCObjectPointerType(Ty)) 2825c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian return QualType::GCNone; 28264fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 2827b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 28284fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 28294fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 28306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 28316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 28326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 2833770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 28346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 28356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 28366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 28376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 28386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 28396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 284061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 28416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 28426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 28433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 28446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 28456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 28466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 28473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 28483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 28496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 28506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 28516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 28526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 28536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 28546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 28556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 28566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 28576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 28586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 28596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 28606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 28616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 28626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 28636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 28646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 28656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 28666ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 28676ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 286891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // All LHS protocols must have a presence on the RHS. 286991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff assert(LHSP->qual_begin() != LHSP->qual_end() && "Empty LHS protocol list?"); 287091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 287191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(), 287291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPE = LHSP->qual_end(); 287391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 287491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 287591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 287691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 287791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 287891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(), 287991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSPE = RHSP->qual_end(); 288091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff !RHSImplementsProtocol && (RHSPI != RHSPE); RHSPI++) { 288191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) 288291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 288391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 288491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 288591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 288691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 288791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 288891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 288991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 28906ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 28916ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 2892389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 2893389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 2894389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *LHSPT = LHS->getAsPointerType(); 2895389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *RHSPT = RHS->getAsPointerType(); 2896389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2897389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSPT || !RHSPT) 2898389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2899389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2900389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType lhptee = LHSPT->getPointeeType(); 2901389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType rhptee = RHSPT->getPointeeType(); 2902389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* LHSIface = lhptee->getAsObjCInterfaceType(); 2903389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* RHSIface = rhptee->getAsObjCInterfaceType(); 2904389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // ID acts sort of like void* for ObjC interfaces 2905389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (LHSIface && isObjCIdStructType(rhptee)) 2906389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2907389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (RHSIface && isObjCIdStructType(lhptee)) 2908389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2909389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSIface || !RHSIface) 2910389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2911389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return canAssignObjCInterfaces(LHSIface, RHSIface) || 2912389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff canAssignObjCInterfaces(RHSIface, LHSIface); 2913389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 2914389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2915ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 2916ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 2917ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 2918ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 29193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 29203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 29213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 29223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29233d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 29243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 29253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 292672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 292772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 29283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 29293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 29303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 29323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 29333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 293461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 293561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 293661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 293761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 29383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 2940465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 2941465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 29423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 29433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 29443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 29463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 29473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 29483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 29503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 29513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 29523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29537fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 29547fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 29557fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 29563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 29573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 29583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 29593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 29603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 29613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 29623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 29633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 296461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 296561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 296661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 296761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 29683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 29693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 29703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 29713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 29727fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 29733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 29743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 29763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 29773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 297872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 29793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 2980465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 29813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 29823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 29833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 29843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 29853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 29863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 29873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 29883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 29893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 29903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 29913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 29923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 29933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 29943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 29963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 29973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 29987fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 29997fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 30003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 30033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 300472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return getFunctionNoProtoType(retType); 30053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 30063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30073d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 300843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 300943d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 301043d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 30117c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 30127c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 30133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 30143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 30157c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 30167c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 30173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 3018c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 30193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 3020c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 30213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 30233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 30243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3025f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 30263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 30273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 30283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 30305a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Note that we handle extended qualifiers later, in the 30315a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // case for ExtQualType. 30325a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers()) 30333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 30343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3035852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 3036852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 3037f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 30381adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 30391adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 30401adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 30411adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 30424c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 304307d258756dc856c6987c394a0972884e6ed46765Eli Friedman // Strip off objc_gc attributes off the top level so they can be merged. 304407d258756dc856c6987c394a0972884e6ed46765Eli Friedman // This is a complete mess, but the attribute itself doesn't make much sense. 3045585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (RHSClass == Type::ExtQual) { 304607d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = RHSCan.getObjCGCAttr(); 304707d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 304886f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian QualType::GCAttrTypes GCLHSAttr = LHSCan.getObjCGCAttr(); 30498df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. 305086f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 305186f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 305286f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 305386f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCLHSAttr != GCAttr) || 305486f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCLHSAttr != GCAttr && 305586f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian LHSCan->isPointerType() && !isObjCObjectPointerType(LHSCan) && 305686f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian !isObjCIdStructType(LHSCan->getAsPointerType()->getPointeeType()))) 30578df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 30588df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian 305907d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS = QualType(cast<ExtQualType>(RHS.getDesugaredType())->getBaseType(), 306007d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS.getCVRQualifiers()); 306107d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 30628df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 30638df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 30648df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 30658df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 30668df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 30678df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 306807d258756dc856c6987c394a0972884e6ed46765Eli Friedman return Result; 306907d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3070585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3071585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (LHSClass == Type::ExtQual) { 307207d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = LHSCan.getObjCGCAttr(); 307307d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 30748df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian QualType::GCAttrTypes GCRHSAttr = RHSCan.getObjCGCAttr(); 30758df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. __strong 307686f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 307786f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 307886f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 307986f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCRHSAttr != GCAttr) || 308086f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCRHSAttr != GCAttr && 308186f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian RHSCan->isPointerType() && !isObjCObjectPointerType(RHSCan) && 308286f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian !isObjCIdStructType(RHSCan->getAsPointerType()->getPointeeType()))) 30838df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 308486f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian 308507d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS = QualType(cast<ExtQualType>(LHS.getDesugaredType())->getBaseType(), 308607d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS.getCVRQualifiers()); 308707d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 30888df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 30898df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 30908df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 30918df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 30928df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 30938df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 3094354e53da656237e25518b3fafa3bf84de6e6f57eEli Friedman return Result; 309507d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3096585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3097585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian 30984c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 3099a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 3100a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 3101a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 3102a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 3103a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 3104213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 3105213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 3106213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 3107ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 3108b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 3109b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 3110b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 31113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 31124e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 31134e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 31145fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 31155fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 3116c8d2e77288c07a69cabb755a4ab9feeb7b5a1287Fariborz Jahanian 3117d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff // 'id' and 'Class' act sort of like void* for ObjC interfaces 3118d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (LHSIface && (isObjCIdStructType(RHS) || isObjCClassStructType(RHS))) 31195fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 3120d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (RHSIface && (isObjCIdStructType(LHS) || isObjCClassStructType(LHS))) 31215fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return RHS; 31225fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 3123bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 3124bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 3125bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 3126bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 3127d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (isObjCIdStructType(pType) || isObjCClassStructType(pType)) 3128bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 3129bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 3130bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 3131bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 3132bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 3133bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 3134bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 3135bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3136bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3137bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 3138bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 3139bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 3140d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (isObjCIdStructType(pType) || isObjCClassStructType(pType)) 3141bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 3142bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 3143bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 3144bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 3145bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 3146bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 3147bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 3148bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3149bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 31501adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 31511adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 31523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 31533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 31543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 3155bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 31563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 31573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 31583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 3159bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 31601adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 31613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 3162ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 31633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 31644a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 31651adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 316672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 316772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 316872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 316972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 317072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 317172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 317272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 317372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 31747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 31757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 317672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 317772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 317872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 317972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 318072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 318172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 318272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 318372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 318472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 318572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 318672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 318772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 31881adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 31893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 31903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 31913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 31923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 31933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 31943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 319507d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 319661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 319707d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 319861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 31993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 32003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 3201c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 3202c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 3203c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 3204c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 3205c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 3206c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3207c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 3208c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3209c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 3210c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3211c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 3212c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 3213c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 32141adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 32153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 32163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 32173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 32183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 32193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 32203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 32223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 32233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 32243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 322561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 322661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 322761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 322861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 32293bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 32303bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 32313bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 32323bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 32333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 32343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 323561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 323661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 323761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 323861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 32393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 32403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 32413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 32423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 32433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 32443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 32453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 32463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 32473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 32483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 32493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 32503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 32513bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 32523bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 325361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 32543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 32551adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 32563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 325772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 325872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 32593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 3260389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(LHS) && isObjCClassStructType(RHS)) return LHS; 3261389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCClassStructType(LHS) && isObjCIdStructType(RHS)) return LHS; 32623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 32631adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 32643cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 32653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 326664cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 326764cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 326864cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 32693cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 32705a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 32713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 32723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 327361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 327461490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 32755fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 32765a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 32775a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 32785fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 32795fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 32805fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 32815fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 32825fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 32835fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 32843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 328561490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 3286bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff case Type::ObjCQualifiedId: 3287bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 3288bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 32895a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 32905a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 32915a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 32925a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ExtQual: 32935a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: ExtQual types can be compatible even if they're not 32945a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // identical! 32955a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 32965a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // First attempt at an implementation, but I'm not really sure it's 32975a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // right... 32985a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#if 0 32995a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* LQual = cast<ExtQualType>(LHSCan); 33005a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* RQual = cast<ExtQualType>(RHSCan); 33015a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LQual->getAddressSpace() != RQual->getAddressSpace() || 33025a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LQual->getObjCGCAttr() != RQual->getObjCGCAttr()) 33035a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 33045a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman QualType LHSBase, RHSBase, ResultType, ResCanUnqual; 33055a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LHSBase = QualType(LQual->getBaseType(), 0); 33065a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman RHSBase = QualType(RQual->getBaseType(), 0); 33075a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = mergeTypes(LHSBase, RHSBase); 33085a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (ResultType.isNull()) return QualType(); 33095a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResCanUnqual = getCanonicalType(ResultType).getUnqualifiedType(); 33105a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getUnqualifiedType() == ResCanUnqual) 33115a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return LHS; 33125a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (RHSCan.getUnqualifiedType() == ResCanUnqual) 33135a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return RHS; 33145a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getAddrSpaceQualType(ResultType, LQual->getAddressSpace()); 33155a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getObjCGCQualType(ResultType, LQual->getObjCGCAttr()); 33165a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType.setCVRQualifiers(LHSCan.getCVRQualifiers()); 33175a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return ResultType; 33185a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#endif 33197532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 33207532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 33217532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 33227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 3323ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 332472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 332572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 3326ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 33277192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 33285426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 3329ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 3330ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 333188054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 3332ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 3333ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 3334ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 3335f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 3336f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 3337f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 3338f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 3339ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 3340ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3341ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3342ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 3343ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 3344ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 3345ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 3346ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 3347ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 3348ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 3349ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 3350ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 3351ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 3352ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 3353ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 3354ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 3355ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 3356ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 3357ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 3358ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 3359ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 33602df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 33612df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 3362ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 3363ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 3364ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 3365ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 3366ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3367ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 33682cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 33692cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 33702cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 337186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 337286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 337386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 337486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 337586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 337686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 337786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 337886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 337986df27bbdbb98c39ec2184695c0561209f91beddChris Lattnerstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 338086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 338186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 338286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 338386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 338486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 338586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 338686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 338786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 338886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 338986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 339086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 339186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 339286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 339386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 339486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 339586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 339686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 339786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 339886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 339986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 340086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 340186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 340286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 340386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 340486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 340586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 340686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 340786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 340886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 340986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 341086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 341186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 341286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 341386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 341486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 341586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 341686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 341786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 341886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 341986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 342086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 342186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 342286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 342386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 342486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 342586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 342686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 342786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 342886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 342986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 343086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 343186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 343286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 343386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 343486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 343586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 343686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 343786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 343886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 343986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 344086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 344186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 344286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 344386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 344486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 344586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 344686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 344786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 344886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 344986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 345086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 345186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 345286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 345386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 345486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 345586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 345686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 345786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 345886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 345986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 346086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 346186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 346286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 346386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 346486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 346586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 346686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 346786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 346886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 346986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 347086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 347186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 347286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 347386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 347486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 347586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 347686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 347786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 347886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 347986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 348086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 348186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 348286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 348386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 348486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 348586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 348686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 348786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 348886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 348986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 349086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 349186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 349286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 349386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 349486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 349586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 349686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 349786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 349886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 349986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 350086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 350186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'P': { 350286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner IdentifierInfo *II = &Context.Idents.get("FILE"); 350386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner DeclContext::lookup_result Lookup 350486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner = Context.getTranslationUnitDecl()->lookup(Context, II); 350586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Lookup.first != Lookup.second && isa<TypeDecl>(*Lookup.first)) { 350686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getTypeDeclType(cast<TypeDecl>(*Lookup.first)); 350786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 350886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 350986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else { 351086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = ASTContext::GE_Missing_FILE; 351186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 351286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 351386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 351486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 351586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 351686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 351786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 351886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 351986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 352086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 352186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 352286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 352386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 352486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 352586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 352686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 352786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 352886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 352986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 353086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 353186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Type.getQualifiedType(QualType::Const); 353286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 353386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 353486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 353586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 353686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 353786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 353886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 353986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 354086df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 354186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 354286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 354386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 354486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 354586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 354686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 354786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 354886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 354986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 355086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 355186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 355286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 355386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 355486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 355586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 355686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 355786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 355886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 355986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 356086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 356186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 356286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 356386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 356486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 356586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 356686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 356786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 356886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 356986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 357086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 3571