ASTContext.cpp revision 40b598eea1310ec9ed554d56ce3e25b34c585458
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), 41e4f2142d00fa5fdb580c4e2413da91882d955381Chris Lattner BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 42e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 43e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 44e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 45e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 46e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 504b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 53b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 54b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 55b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 56b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 57b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 64b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 65b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 66b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 67b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 68b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 72ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 731ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 741ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 751ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNSEnd = NestedNameSpecifiers.end(); 76e7dcd782df0e1cc3a63e429a866098e69db39153Douglas Gregor NNS != NNSEnd; 771ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 781ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 79ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 80ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 81ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 82ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 83b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 862cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid 872cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 882cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 892cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 902cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 95dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 96dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) 0, 97dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 98dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 99dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 100dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 101c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 104dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 107dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 108dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 109dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 110dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 111dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 112dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 113dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 115dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 116dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 117dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1182cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1192cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1202cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1212cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1222cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 127f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Types.push_back((R = QualType(new (*this,8) BuiltinType(K),0)).getTypePtr()); 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 13915b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 16164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1622df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1632df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1642df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1652df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1663a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1673a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1683a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1693a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 17064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1718e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 172898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 173898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 174898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 175898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 176898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 177898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 178898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 179898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 1808e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 181e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // Placeholder type for C++0x auto declarations whose real type has 182e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 183e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 184e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 1898e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 1907e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 191a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 1927e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 193a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 1948baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 1958baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 196a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 19733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 19833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 19933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2006e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2016e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2026e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 205464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 206464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 207464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 208a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 209b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 210b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 211b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 212b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 213b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 214b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 215b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 216b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 217b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 218b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 219b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 220b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 221b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 222af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// getDeclAlign - Return a conservative estimate of the alignment of the 223af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 224af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 225b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 226dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 227dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 22840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 229dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 230dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 231af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 232af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 2334cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson if (const ReferenceType* RT = T->getAsReferenceType()) { 2344cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 235f0930235ce58a91aa3b840bece9052f44d630536Anders Carlsson Align = Target.getPointerAlign(AS); 2364cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson } else if (!T->isIncompleteType() && !T->isFunctionType()) { 2374cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 238dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 239dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 240dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 241dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 242dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 243af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 244dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 245dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 246af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 247b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 248a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 249a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 250d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 2511d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 2525e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 2535e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 254a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 25572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 25672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 25718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 25872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 25972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 26018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 26172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 26272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 2635d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 2645d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 26518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 26618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 26718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 26818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 26918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 27072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 271fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 27218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 27318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 27418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 27518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 276fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 2771d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 278030d8846c7e520330007087e949f621989876e3aChris Lattner 27998be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 2809e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 281030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 282030d8846c7e520330007087e949f621989876e3aChris Lattner break; 2835c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 284213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 285030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 286030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 28798be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 2889e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 2894bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 2906fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 2916fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 2926fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 2936fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 294030d8846c7e520330007087e949f621989876e3aChris Lattner break; 295030d8846c7e520330007087e949f621989876e3aChris Lattner } 2965d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 2979e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 298a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 299692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 300d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 30118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 30218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 30318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 30418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 30518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 3066f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 3079e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 3089e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 3096f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 310692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 311692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 312692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 3136f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 3149e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 3159e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 3166f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 31764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 31864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 31964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 32064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 321692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 3226f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 3239e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 3249e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 3256f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 326692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 3276f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 3289e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 3299e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 3306f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 331692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 3326f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 3339e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 3349e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 3356f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 336692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 3376f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 3389e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 3399e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 3406f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 341ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 342ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 343ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 344ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 345ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 3466f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 3479e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 3489e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 3496f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3506f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 3515426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 3525426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 3536f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3546f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 3559e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 3569e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 3576f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3586e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 3596e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 3606e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 3611590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 362a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 363bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 364f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 365f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 366f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 367f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 368736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 369f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 370f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 371f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian case Type::ExtQual: 37298be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 37398be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 374f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian return getTypeInfo(QualType(cast<ExtQualType>(T)->getBaseType(), 0)); 375d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 37672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 3775426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 378f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 3796f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 380485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 381485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 382485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 383485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 384485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 385485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 386f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 387f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 3885426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 389f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 390f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 391f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 3927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 3937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 3947ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 3955d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 3966f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 3976f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 398bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 399f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 4001cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // FIXME: This is ABI dependent. We use the Itanium C++ ABI. 4011cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // http://www.codesourcery.com/public/cxx-abi/abi.html#member-pointers 4021cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // If we ever want to support other ABIs this needs to be abstracted. 4031cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson 404f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 4051cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson std::pair<uint64_t, unsigned> PtrDiffInfo = 4061cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 4071cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 408f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 409f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 4101cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 4111cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 412f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 4135d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 4145d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 4155d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 4165d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 41798be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 4189e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 4195d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 4205d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 4215d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 42244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 4231d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 42444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 42544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 42644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 42744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 42844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 42972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 43072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 4311d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 4321d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 4331d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 4348389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 4358389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 4368389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 4378389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 4388389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 4391d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 4407176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 4417176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 4421d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 4437176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 4447176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 4457176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 446dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 447a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 4487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 44918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 45018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 45140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 45218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = Aligned->getAlignment(); 45318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 45418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 45518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 4567532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 4577176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 45818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 45918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 46018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 46118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 46218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 46318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 46418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 46518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 466395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 467395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 468395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 469395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 47018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 47118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 47218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 47318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 47418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(getCanonicalType(T) != T && 47518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 47618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 47718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 47818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 47918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 48018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 481d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 482464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 4839e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 484a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 485a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 48634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 48734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 48834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 48934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 49034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 49134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 4921eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 4931eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 4941eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (const ComplexType* CT = T->getAsComplexType()) 4951eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 4961eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 4971eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 4981eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 4991eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 50034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 50134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 50234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 50334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 5048b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 5058b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 5063b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 5078b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 5083b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 5098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 5108b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 5118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 5123b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 5133b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 5143b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 51540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 5163b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 5178b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 5198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 5208b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 5219a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman FieldSize = BitWidthExpr->EvaluateAsInt(Context).getZExtValue(); 5228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 5248b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 5258b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 5268b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5273b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 5283b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 5293b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 5303b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 5313b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 5328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 5333b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 5343b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 53540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 5368b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 5378b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5388b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 5398b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 5408b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 5418b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 5428b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5438b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 5448b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 5458b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 5468b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5478389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 5488389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 5498b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 5508b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 5518b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 5528b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 553c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 5548b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 5552f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson } else if (const ReferenceType *RT = FD->getType()->getAsReferenceType()) { 5562f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 5572f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson FieldSize = Context.Target.getPointerWidth(AS); 5582f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson FieldAlign = Context.Target.getPointerAlign(AS); 5598b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5608b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 5618b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 5628b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 5638b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 5648b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5658b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5663b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 5673b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 5683b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 5693b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 5703b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 5713b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 5723b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 5733b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 5743b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 57540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 5768b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 5778b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5788b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 5798b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 5808b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5818b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5828b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 5838b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 5848b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5858b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 5868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 5878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 5888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 5908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 592d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar // Remember the next available offset. 593d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar NextOffset = Size; 594d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar 5958b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 5968b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 5978b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 5988b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 599a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 600a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 601a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 602a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 603a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 604f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 605a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 606a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 607a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 608a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 609a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 610a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 611a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 612a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 613a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 614a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 615a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 616a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 6178e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 6188e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 6198e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 6208e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 6218e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 6228e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 6238e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 6248e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 6258e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 6268e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 6278e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 6288e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 6298e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 6308e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 6319820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 6329820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 6339820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(*this), 6349820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->prop_end(*this); I != E; ++I) 6359820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 6369820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 6379820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 6389820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 6399820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 6409820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 6419820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 6429820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 6439820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 6449820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 6459820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 6469820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 6479820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 6489820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 6499820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(*this), 6509820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = OI->prop_end(*this); I != E; ++I) { 6519820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 6529820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 6539820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 6549820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 6559820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 6569820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 6579820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 6589820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 6599820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 6609820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 6619820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 6629820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 6638e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 6648e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 6658e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(*this), 6668e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->prop_end(*this); I != E; ++I) 6678e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 6688e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 6698e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 6708e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 6718e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 6728e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 6738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 6748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 6758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 6768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 6778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) 6788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian{ 6798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 6808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(*this), 6818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->prop_end(*this); I != E; ++I) { 6828e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 6838e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 6848e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 6858e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 6868e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 6878e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 6888e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 6898e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 6908e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 6918e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 6928e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 6938e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 6948e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 695b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 696b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 697b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 698b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 699b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 70044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 701b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 702b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 703532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 704532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 70544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 706d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCContainerDecl *Key = 707d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 708d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 709d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 71044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 711453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar unsigned FieldCount = D->ivar_size(); 712453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 713453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 7148e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 7158e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian FieldCount += SynthCount; 716d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 717453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 718453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 719453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 7208e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 721453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 722453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 723453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 7246a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 7256a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 7266a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 7276a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 728d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar 729913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // We start laying out ivars not at the end of the superclass 730913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // structure, but at the next byte following the last field. 731913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar uint64_t Size = llvm::RoundUpToAlignment(SL.NextOffset, 8); 732d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar 733d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(Size, Alignment); 7346a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 7356a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 736d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(); 7376a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 7386a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 73944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 7403b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 74140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 7423b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 74344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 74440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 74544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 74644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 74744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 74844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 74944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 7508e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVector<ObjCIvarDecl*, 16> Ivars; 7518e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ShallowCollectObjCIvars(D, Ivars, Impl); 7528e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (unsigned k = 0, e = Ivars.size(); k != e; ++k) 7538e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian NewEntry->LayoutField(Ivars[k], i++, false, StructPacking, *this); 7548e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 75544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 75644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 75744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 75844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 75944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 76044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 761b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 762b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 763b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 764b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 765b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 766b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 767b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 768b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 769b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 770b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 77188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 772464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 773464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 77498be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 7754b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 7764b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 7774bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 778464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 77988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 780464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 7814bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 78288a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 78388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 78488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 785464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 7864bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 787e267ff35b2f4e9d2b0d8bf24109d41cc7398b61bDouglas Gregor // FIXME: Avoid linear walk through the fields, if possible. 7886ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor NewEntry->InitializeLayout(std::distance(D->field_begin(*this), 7896ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor D->field_end(*this))); 79039ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 791464175bba1318bef7905122e9fda20cff926df78Chris Lattner 7923b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 79340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 7943b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 7953b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 79640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 7978b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 7988b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 7994bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 8004bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 8014bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 80244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 8036ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (RecordDecl::field_iterator Field = D->field_begin(*this), 8046ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldEnd = D->field_end(*this); 80544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 80644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 8074bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 8084bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 8094bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 8101590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl NewEntry->FinalizeLayout(getLangOptions().CPlusPlus); 8115d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 812464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 813464175bba1318bef7905122e9fda20cff926df78Chris Lattner 814a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 815a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 816a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 817a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 818f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 819f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 820f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 821f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 822b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 823b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 824b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 825b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 826b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr = QualType::GCNone; 827b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 828b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 829b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 830b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 831b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 832b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getAddressSpace() == 0 && 833b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 834b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttr = EQT->getObjCGCAttr(); 835b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 836b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 837f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 838b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Check if we've already instantiated this type. 839ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 840b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 841ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 842f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 843b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 844b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 845ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 846ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 847ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 848b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (!TypeNode->isCanonical()) { 849f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Canonical = getAddrSpaceQualType(CanT, AddressSpace); 850ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 851b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 852f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 853f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 854ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 855b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 856b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 857f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 858ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 859b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 860ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 861ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 862b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 863b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr) { 864d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 865b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 866d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 867d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 8684027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 8694027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType Pointee = T->getAsPointerType()->getPointeeType(); 8704027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (Pointee->isPointerType()) { 8714027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 8724027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 8734027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 8744027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 875b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 876b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 877b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 878b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 879b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned AddressSpace = 0; 880b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 881b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 882b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 883b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 884b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getObjCGCAttr() == QualType::GCNone && 885b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 886b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner AddressSpace = EQT->getAddressSpace(); 887b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 888b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 889d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 890d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check if we've already instantiated an gc qual'd type of this type. 891d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian llvm::FoldingSetNodeID ID; 892b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 893d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian void *InsertPos = 0; 894d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 895b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 896d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 897d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // If the base type isn't canonical, this won't be a canonical type either, 898d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // so fill in the canonical type field. 8995a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: Isn't this also not canonical if the base type is a array 9005a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // or pointer type? I can't find any documentation for objc_gc, though... 901d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType Canonical; 902d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (!T->isCanonical()) { 903b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Canonical = getObjCGCQualType(CanT, GCAttr); 904d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 905b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 906d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 907d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 908d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 909b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 910b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 911d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 912d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Types.push_back(New); 913b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 914d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 915a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 9205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 932f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 936f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 938f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 944f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 945f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 946f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 947f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 948f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 949f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 950f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 951f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 9635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 9645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 969f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 9705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 973f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 975f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 9765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9815618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 9825618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 9835618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 984296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 985296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 9865618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 9875618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 9885618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 9895618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 9905618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 9915618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 9925618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 9935618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 9945618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 995296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 9965618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 9975618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 9985618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 9995618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 10005618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 10015618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 10025618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 10035618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1004f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10055618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 1006f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 10075618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 10085618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 10095618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 10105618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 10115618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 10127c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 10137c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 10147c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10217c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 10227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 10247c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 10297c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 10307c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10317c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 10327c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 10337c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 10347c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10357c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 10367c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10377c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *New = new (*this,8) LValueReferenceType(T, Canonical); 10387c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 10397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 10407c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 10417c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 10427c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10437c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 10447c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 10457c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 10467c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 10477c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 10487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 10497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 10507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 10527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 10537c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 10557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10567c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 10577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 10587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 10597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 10607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 10617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 10647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1065f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *New = new (*this,8) RValueReferenceType(T, Canonical); 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 10715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1074f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1075f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 1076f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 1077f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 1078f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1079f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1080f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1081f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1082f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1083f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1084f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1085f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1086f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1087f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1088f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1089f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1090f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1091f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1092f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1093f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1094f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1095f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1096f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1097f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1098f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1099f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 1100f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1101f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1102f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1103f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1104f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1105fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 1106fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 1107fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 110838aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1109c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1110c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1111587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman assert((EltTy->isDependentType() || EltTy->isConstantSizeType()) && 1112587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1113587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 111438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 111538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 111638aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 111738aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 111838aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11200be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11237192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 11247192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 11255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 11265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 1131f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1132c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11347192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 11357192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1136f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1139566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 1140f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 11417192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1146bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1147bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 1148c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 1149c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1150c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1151c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1152c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1153c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1154566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 1155f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)VariableArrayType(EltTy,QualType(), NumElts, ASM, EltTypeQuals); 1156c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1157c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1158c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1159c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1160c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1161c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1162898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1163898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 1164898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 1165898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 1166898574e7496ba8fd76290079d3a9d06954992734Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, Expr *NumElts, 1167898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 1168898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor unsigned EltTypeQuals) { 1169898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1170898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1171898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1172898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 1173898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 1174898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1175566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek DependentSizedArrayType *New = 1176f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) DependentSizedArrayType(EltTy, QualType(), NumElts, 1177f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ASM, EltTypeQuals); 1178898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1179898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 1180898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1181898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1182898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1183898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1184c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1185c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1186c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1187c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 11880be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1189c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1190c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 1191c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 1192c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1193c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1194c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1195c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1196c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1197c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1198c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1199c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1200f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 12012bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1202c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1203c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1204c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1205c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1206f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12072bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1208c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1209f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff IncompleteArrayType *New = new (*this,8) IncompleteArrayType(EltTy, Canonical, 1210566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ASM, EltTypeQuals); 1211c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1212c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1213c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1214c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1215fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1216fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 121773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 121873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 121973322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 12215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1222f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 122373322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 12245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 12265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 122773322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1236f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1240f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1242f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1248213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 124973322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1250213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 125173322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 125273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1253f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1254213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 125573322924127c873c13101b705dd823f5539ffa5fSteve Naroff 125673322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 125773322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1258213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 125973322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 126073322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 126173322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 126273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 126373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 126473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 126573322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 126673322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1267213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 126873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 126973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 127073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1271f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 127273322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1273f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 127473322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 127573322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 127673322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 127773322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 127873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 12799cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas GregorQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 12809cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 12819cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 12829cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor DependentSizedExtVectorType *New = 12839cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor new (*this,8) DependentSizedExtVectorType(vecType, QualType(), 12849cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SizeExpr, AttrLoc); 12859cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 12869cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor DependentSizedExtVectorTypes.push_back(New); 12879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 12889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 12899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 12909cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 129172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 12925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 129372564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy) { 12945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 129772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType::Profile(ID, ResultTy); 12985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 130072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionNoProtoType *FT = 130172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 13055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 130672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy)); 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 130972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 131072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1311f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 131472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *New =new(*this,8)FunctionNoProtoType(ResultTy,Canonical); 13155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 131672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 13175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 13215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 132261710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1323971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1324465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1325465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 1326465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl const QualType *ExArray) { 13275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 13285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 13295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 133072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1331465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1332465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs, ExArray); 13335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 133572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionProtoType *FTP = 133672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 13375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1338465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1339465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 13405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 1341465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl if (hasExceptionSpec) 1342465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl isCanonical = false; 13435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 13445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 13455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 13465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1348465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 13495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 13505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 13515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 13525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 13535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1354f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 1355465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1356f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1357beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 1358bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl isVariadic, TypeQuals); 1359465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 136172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 136272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1363f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1365465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 136672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1367465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1368465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 136972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *FTP = 1370465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1371465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 1372465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs*sizeof(QualType), 8); 137372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1374465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1375465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl ExArray, NumExs, Canonical); 13765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 137772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 13785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 13795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13812ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 13822ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 13834b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 13841e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 13852ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13862ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 13871e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 13882ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1389fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1390fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 1391fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 13922ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 139349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1394c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1395566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1396566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1397f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1398f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 1399566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1400566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1401566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1402566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1403f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1404f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 14054b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 140649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 14072ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 140849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 14094b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 141049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 14112ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 14122ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 14135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 14145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 14155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 14165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 14175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1418f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 141972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Decl->TypeForDecl = new(*this,8) TypedefType(Type::Typedef, Decl, Canonical); 14205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 14215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 14225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1424a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 14253536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 14263b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel DunbarQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl) { 14273536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 14283536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 14293b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar ObjCInterfaceDecl *OID = const_cast<ObjCInterfaceDecl*>(Decl); 14303b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar Decl->TypeForDecl = new(*this,8) ObjCInterfaceType(Type::ObjCInterface, OID); 14313536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 14323536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 14333536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 14343536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1435fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 143676e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// parameter or parameter pack with the given depth, index, and (optionally) 143776e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 1438fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas GregorQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 143976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1440fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1441fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 144276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1443fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 1444fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType *TypeParm 1445fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1446fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1447fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1448fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1449fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 145076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 145176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 145276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack, 145376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson Name, Canon); 145476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 145576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack); 1456fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1457fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1458fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1459fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1460fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1461fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1462fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 146355f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorQualType 14647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 14657532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 14667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 14677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 146840808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor if (!Canon.isNull()) 146940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor Canon = getCanonicalType(Canon); 1470fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 147155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor llvm::FoldingSetNodeID ID; 14727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType::Profile(ID, Template, Args, NumArgs); 147340808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 147455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void *InsertPos = 0; 14757532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType *Spec 14767532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 147755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 147855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (Spec) 147955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 148055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 14817532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *Mem = Allocate((sizeof(TemplateSpecializationType) + 148240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 148340808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 8); 14847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor Spec = new (Mem) TemplateSpecializationType(Template, Args, NumArgs, Canon); 148555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 14867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 148755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 148855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 148955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 149055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1491e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas GregorQualType 1492ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1493e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1494e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1495ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1496e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1497e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 1498e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameType *T 1499e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1500e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1501e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1502e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1503ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, 1504ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1505e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1506e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1507e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1508e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1509e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1510d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1511d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1512d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1513d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1514d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1515d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1516d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1517d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1518d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1519d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1520d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1521d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1522d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1523d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1524d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 1525d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType *T 1526d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1527d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1528d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1529d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1530d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1531d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1532d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 1533d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1534d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1535d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 15361734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorQualType 15371734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorASTContext::getTypenameType(NestedNameSpecifier *NNS, 15381734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 15391734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 15401734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 15411734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15421734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 15431734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 15441734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 15451734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 15461734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 15471734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = CanonType->getAsTemplateSpecializationType(); 15481734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 15491734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 15501734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 15511734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15521734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15531734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15541734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 15551734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 15561734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15571734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 15581734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType *T 15591734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 15601734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 15611734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 15621734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15631734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 15641734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 15651734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 15661734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 15671734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 15681734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 156988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 157088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 157188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 157288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 15732e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 157488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 157588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 157688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 157788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 157888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 157988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 158088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 158188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 158288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 158388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 158488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 158588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 158688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 158788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1588d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 1589d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 1590d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve NaroffQualType ASTContext::getObjCObjectPointerType(ObjCInterfaceDecl *Decl, 1591d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCProtocolDecl **Protocols, 1592d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 1593d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // Sort the protocol list alphabetically to canonicalize it. 1594d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (NumProtocols) 1595d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff SortAndUniqueProtocols(Protocols, NumProtocols); 1596d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1597d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 1598d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerType::Profile(ID, Decl, Protocols, NumProtocols); 1599d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1600d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 1601d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 1602d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1603d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QT, 0); 1604d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1605d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // No Match; 1606d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerType *QType = 1607d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff new (*this,8) ObjCObjectPointerType(Decl, Protocols, NumProtocols); 1608d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1609d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 1610d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 1611d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 1612d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 161388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1614065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1615065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1616a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1617a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 161888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 161988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 162088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 16214b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1622b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 16234b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 16244b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1625a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1626a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 16274b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 16284b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 16294b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1630a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1631f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 1632566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek 16334b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1634a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 16354b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 16364b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 16374b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 163872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 163972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 16409752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 16419752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 16429752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 164372564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 1644f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 164572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor TypeOfExprType *toe = new (*this,8) TypeOfExprType(tofExpr, Canonical); 16469752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 16479752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1648d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1649d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 16509752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 16519752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 16529752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 16539752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 16549752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1655d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1656f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1657f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 16589752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 16599752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1660d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1661d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 166260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 166360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 166460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 1665a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 1666a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 1667a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson 166860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 166960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 167060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 167160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 167260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 167360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 167460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 167560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 167660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 167760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 167860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 167960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 168060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 168160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 168260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 168360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 168460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 168560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 168660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 168760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 168860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 168960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 169060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 169160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 169260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 169360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 1694395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 1695395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 1696395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 1697395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// an issue. This doesn't effect the type checker, since it operates 1698395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 1699395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 170060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = getDecltypeForExpr(e, *this); 170160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson DecltypeType *dt = new (*this, 8) DecltypeType(e, getCanonicalType(T)); 1702395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 1703395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 1704395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 1705395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 17065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 17075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 17085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1709d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 17102ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 17115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 17145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 17155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 17165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1717b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 17185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 172064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 172164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 172264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 172364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 172464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 172564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 172664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 172764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 172864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 172964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 173064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 173164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 173264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 173364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 17348b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 17358b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 17368b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1737b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 17388b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 17398b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1740e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1741e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1742e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1743e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 174477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 174577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 174677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 174777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 174877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 174977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 175077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 175177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1752c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1753c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1754c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1755c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1756c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1757c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1758c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1759c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1760c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1761c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1762c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1763c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1764c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1765c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1766c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1767c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1768c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1769c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1770c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1771c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1772c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1773c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1774c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1775898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1776898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1777898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1778898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1779898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1780c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1781c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1782c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1783c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1784c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1785c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 17867da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas GregorDecl *ASTContext::getCanonicalDecl(Decl *D) { 1787c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor if (!D) 1788c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor return 0; 1789c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor 17907da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (TagDecl *Tag = dyn_cast<TagDecl>(D)) { 17917da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor QualType T = getTagDeclType(Tag); 17927da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return cast<TagDecl>(cast<TagType>(T.getTypePtr()->CanonicalType) 17937da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor ->getDecl()); 17947da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 17957da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 17967da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (ClassTemplateDecl *Template = dyn_cast<ClassTemplateDecl>(D)) { 17977da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Template->getPreviousDeclaration()) 17987da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Template = Template->getPreviousDeclaration(); 17997da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return Template; 18007da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 18017da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 18027da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (const FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) { 18037da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Function->getPreviousDeclaration()) 18047da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Function = Function->getPreviousDeclaration(); 18057da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return const_cast<FunctionDecl *>(Function); 18067da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 18077da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 1808127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(D)) { 1809127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor while (FunTmpl->getPreviousDeclaration()) 1810127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor FunTmpl = FunTmpl->getPreviousDeclaration(); 1811127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor return FunTmpl; 1812127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor } 1813127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor 18147da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (const VarDecl *Var = dyn_cast<VarDecl>(D)) { 18157da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Var->getPreviousDeclaration()) 18167da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Var = Var->getPreviousDeclaration(); 18177da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return const_cast<VarDecl *>(Var); 18187da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 18197da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 18207da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return D; 18217da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor} 18227da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 182325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 182425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 182525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 182625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 18277da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return TemplateName(cast<TemplateDecl>(getCanonicalDecl(Template))); 182825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 182925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 183025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 183125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 183225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 183325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 1834d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 1835d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 1836d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (!NNS) 1837d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1838d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1839d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 1840d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 1841d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 1842d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 1843d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 1844d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 1845d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1846d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 1847d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 1848d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 1849d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 1850d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1851d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 1852d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 1853d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 1854d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *Prefix = 0; 1855d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1856d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: This isn't the right check! 1857d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T->isDependentType()) 1858d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Prefix = getCanonicalNestedNameSpecifier(NNS->getPrefix()); 1859d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1860d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, Prefix, 1861d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 1862d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 1863d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1864d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1865d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 1866d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 1867d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 1868d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1869d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1870d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 1871d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1872d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1873d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1874c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1875c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1876c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1877c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1878c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1879c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1880c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1881c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1882c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1883c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1884c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1885c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1886f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Make sure to look through type qualifiers (like ExtQuals) for the negative 1887c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1888c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1889c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1890c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1891c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1892c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1893c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1894c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1895c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1896c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1897c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1898c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1899c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1900c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1901c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1902c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1903f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Rip through ExtQualType's and typedefs to get to a concrete type. 1904c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1905f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(Ty)) { 1906f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian AddrSpace = EXTQT->getAddressSpace(); 1907f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Ty = EXTQT->getBaseType(); 1908c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1909c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1910c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1911c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1912c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1913c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1914c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1915c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1916c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1917c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1918c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1919c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1920c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1921c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1922c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1923c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1924c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1925c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1926c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1927c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1928f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian NewEltTy = getAddrSpaceQualType(NewEltTy, AddrSpace); 1929c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1930c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1931c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1932c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1933c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1934c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1935c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1936c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1937c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1938c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1939898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1940898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1941898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1942898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1943898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1944898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1945898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1946898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1947c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1948c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1949c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1950c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1951c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 195277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 195377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 195477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1955e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1956e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1957e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1958e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1959e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1960e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1961e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1962c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1963c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1964c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1965c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1966c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1967c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1968e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1969c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1970e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1971e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1972c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1973e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1974e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1975d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 19766183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 19776183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 19786183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 19796183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 19806183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 19816183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 19826183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 19836183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 19845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 19855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1986a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1987ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 19885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1989a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1990d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 1991ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1992a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 19935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 19945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 19955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 19965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1999716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 2000716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 2001716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2002716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 20031361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 20041361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 20051361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 20061361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 20071361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2008716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2009f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2010f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2011f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2012f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2013f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 20141361b11066239ea15764a2a844405352d87296b3Chris Lattner 20151361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 20161361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 20171361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 20181361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 20191361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 20201361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 20215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 20235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 20257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 20267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 20277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 2028a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2029a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2030a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 2031a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2032a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2033fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2034a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2035fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2036fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 20375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 20385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2039f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2040f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2041f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2042f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2043f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 2044f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2045f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 2046f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2047f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 2048f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 2049f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 20501b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 2051f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 2052f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2053f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 20547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 20557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2056f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 20577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 20587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 20597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 20607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2061f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 20627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 20637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2064f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 20657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 20667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2067f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 20687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 20697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2070f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 20717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 20727cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2073f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 20742df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 20752df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 20762df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2077f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2078f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2079f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 20807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 20817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 20827cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 20837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2084f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2085f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 20867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 20875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2088f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2089f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 20905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 20927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 20935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 20957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 20967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 20977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 20987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 20997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 21007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 21017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 21027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 21037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 21047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 21057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 21067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 21077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 21087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 21097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 21107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 21117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 21127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 21137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 21145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 21167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 21177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 21187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 21195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 212071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 212171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 212271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 212371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 21246c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 212539ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2126df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2127f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 212871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 212971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 213071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 2131f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2132f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 213371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 2134f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 213571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 2136f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 213771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 213844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 213944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 214044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 214144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 214244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 21434afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 21446ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor CFConstantStringTypeDecl->addDecl(*this, Field); 214544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 214644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 214744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 214871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 214971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 215071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 21518467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2152b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2153319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 2154319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2155319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2156319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2157319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2158319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2159bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 2160bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 2161bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 216244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 216344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 216444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 216544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2166bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2167bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2168bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 2169bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2170bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2171bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2172bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 2173bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 217444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 217544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 217644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 217744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 217844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 21794afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 21806ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor ObjCFastEnumerationStateTypeDecl->addDecl(*this, Field); 218144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 2182bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 218344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2184bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 2185bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2186bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2187bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2188bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2189319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 2190319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2191319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2192319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2193319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2194319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2195e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2196e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 21972d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2198e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2199bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2200bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 220185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 220285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 220385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 220485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2205a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 220633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2207a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 220898be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 220933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 221033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 221133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 221298be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 221333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 221433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 221598be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 221698be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 221733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 221833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2219a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 222033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 2221c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2222e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2223c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2224ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2225a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 222633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 22270d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 222833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 222933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 223033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 223133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 223298be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 223333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 223433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 223533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 223689951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 223789951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 223889951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 223989951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 2240a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 224133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 224233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 224333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 224433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 224533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 224633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 224733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 224833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 224989951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 225089951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 225189951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 22524306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 22534306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 2254ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 2255ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 2256ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 2257bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 2258ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2259ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 2260ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2261ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 226233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 22634306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 22640d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 226533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2266a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 226733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 226833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 226933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2270c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 227183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2272c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2273c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 227483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 227583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 227683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 227783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 227883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 227983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 228083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 228183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 228283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 228383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 228483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 228583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 228683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 228783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 228883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 228983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 229083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 229183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 229283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 229383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 229483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 2295c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2296c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2297e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2298c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2299c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2300c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2301c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2302c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2303c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 2304c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 2305c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2306c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2307653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i = CID->propimpl_begin(*this), e = CID->propimpl_end(*this); 2308653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2309c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2310c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2311c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2312c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2313c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2314c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2315c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2316c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2317c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2318c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 231961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2320c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2321653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i = OID->propimpl_begin(*this), e = OID->propimpl_end(*this); 2322653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2323c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2324c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2325c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2326c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2327c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2328c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2329c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2330c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2331c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2332c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2333c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2334c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2335c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2336c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 2337c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2338c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 2339090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 2340090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 2341153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 2342090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 2343090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 2344c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2345c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 2346c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 2347c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2348c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 2349c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 2350c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 2351c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 2352c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2353c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2354c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2355c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 2356c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 2357c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 2358c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 2359c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2360090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2361090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 2362090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 2363c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2364c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 2365077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 2366c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2367c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2368c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2369c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 2370077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 2371c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2372c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2373c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 2374c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2375c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 237639f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 2377c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2378c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2379c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 2380c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 2381c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2382a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 2383a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 2384c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian/// 'l' or 'L' , but not always. For typedefs, we need to use 2385a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2386a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 2387a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 2388a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 2389a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 2390c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 2391c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2392a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 2393c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian else 2394c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 2395c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2396a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 2397a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2398a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2399a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 2400a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 24017d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 2402153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 240382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 240482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 240582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 240682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 24075b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 24085b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 240982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 241082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 24118b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 2412153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 24138b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 24148b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 24158b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 24169a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 24178b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 24188b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 24198b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 24208b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 242182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 242282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 242382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 2424153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 2425090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 24266ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 2427e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 242843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD && FD->isBitField()) { 24298b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 243085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 243143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else { 243243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian char encoding; 243343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian switch (BT->getKind()) { 243443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian default: assert(0 && "Unhandled builtin type kind"); 243543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Void: encoding = 'v'; break; 243643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Bool: encoding = 'B'; break; 243743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_U: 243843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UChar: encoding = 'C'; break; 243943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UShort: encoding = 'S'; break; 244043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UInt: encoding = 'I'; break; 244172696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::ULong: 244272696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 244372696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 244472696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 24452df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 244643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULongLong: encoding = 'Q'; break; 244743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_S: 244843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::SChar: encoding = 'c'; break; 244943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Short: encoding = 's'; break; 245043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Int: encoding = 'i'; break; 245172696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::Long: 245272696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 245372696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 245472696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 245543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongLong: encoding = 'q'; break; 24562df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 245743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Float: encoding = 'f'; break; 245843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Double: encoding = 'd'; break; 245943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongDouble: encoding = 'd'; break; 246043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 246185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 246243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += encoding; 246343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2464c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson } else if (const ComplexType *CT = T->getAsComplexType()) { 2465c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 2466c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 2467c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 2468c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson } else if (T->isObjCQualifiedIdType()) { 2469090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(getObjCIdType(), S, 2470090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandPointedToStructures, 2471090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandStructures, FD); 2472090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 2473090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Note that we do extended encoding of protocol qualifer list 2474090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Only when doing ivar or property encoding. 2475d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff const ObjCObjectPointerType *QIDT = T->getAsObjCQualifiedIdType(); 2476090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2477d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff for (ObjCObjectPointerType::qual_iterator I = QIDT->qual_begin(), 2478446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff E = QIDT->qual_end(); I != E; ++I) { 2479090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2480446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff S += (*I)->getNameAsString(); 2481090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2482090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2483090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2484090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2485090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian return; 2486c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 2487c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 248885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2489a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2490a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2491a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2492a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2493a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 2494a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(T.getTypePtr())) { 2495a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2496a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2497a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2498a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2499a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2500a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 2501a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 2502a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian while (P->getAsPointerType()) 2503a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian P = P->getAsPointerType()->getPointeeType(); 2504a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 2505a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2506a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2507a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2508a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2509a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 2510a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 2511a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 2512a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 2513a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 2514a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 2515a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2516a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 2517a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 2518a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2519a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2520389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(PointeeTy)) { 2521c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 2522c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 2523c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian } 2524c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian else if (PointeeTy->isObjCInterfaceType()) { 2525bb99bdec7d3e704485baffae85938d24d35f0e0fFariborz Jahanian if (!EncodingProperty && 2526225dfd7d6b0ed14e6b7ad8dc121161b9f34ecfceFariborz Jahanian isa<TypedefType>(PointeeTy.getTypePtr())) { 25273e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // Another historical/compatibility reason. 25283e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // We encode the underlying type which comes out as 25293e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // {...}; 25303e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian S += '^'; 25313e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 25323e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian false, ExpandPointedToStructures, 25333e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian NULL); 25343e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian return; 25353e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian } 2536c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian S += '@'; 2537090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 253886f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian const ObjCInterfaceType *OIT = 253986f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian PointeeTy.getUnqualifiedType()->getAsObjCInterfaceType(); 2540090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCInterfaceDecl *OI = OIT->getDecl(); 2541adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2542adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += OI->getNameAsCString(); 2543446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff for (ObjCInterfaceType::qual_iterator I = OIT->qual_begin(), 2544446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff E = OIT->qual_end(); I != E; ++I) { 2545090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2546446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff S += (*I)->getNameAsString(); 2547090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2548090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2549adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2550adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian } 2551c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian return; 2552389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff } else if (isObjCClassStructType(PointeeTy)) { 25538baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 25548baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2555a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 25568baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 25578baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2558c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 255985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 256085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 256185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 256285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2563e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 256485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 256585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 256685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 256785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 256885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 256985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2570a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2571a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2572a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 2573d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 257443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2575c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 2576c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 2577c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 2578559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 2579559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 2580559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 2581559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 2582559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2583559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2584559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 2585559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 258685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2587559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2588559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 2589559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 2590559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 2591559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 2592559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 2593559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 259485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2595559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2596559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2597559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 2598559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 2599c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 2600c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 26016de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 260282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2603d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2604502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2605502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2606502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2607502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2608502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2609502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 26100d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 26117d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 26126ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (RecordDecl::field_iterator Field = RDecl->field_begin(*this), 26136ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldEnd = RDecl->field_end(*this); 261444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 261543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2616d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 261744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2618d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2619d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2620d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2621d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 262243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 262343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 262443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2625d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2626a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2627a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2628a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 262943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2630d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 26317d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 26326de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2633d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 26345e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 26358b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 26368b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 26378b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 26388b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2639485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 264021a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 264143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } else if (T->isObjCInterfaceType()) { 264243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 264343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 264443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 264543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 264643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 264743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 2648f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 264943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 2650f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 265143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 265243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 265343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 265443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 265543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 265643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 265743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 265843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 265943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 266043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 2661f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 266285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 266385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2664a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 2665ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 2666ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 2667ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 2668ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 2669ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 2670ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 2671ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 2672ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 2673ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 2674ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 2675ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 2676ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 2677ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 2678ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 2679ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 2680b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 2681b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 2682b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 2683b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2684b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 2685b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 2686b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2687319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCIdType(QualType T) 26887e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 2689319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCIdType = T; 2690319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2691319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2692319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2693319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2694319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2695319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 26967e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 26977e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 26987e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2699c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2700c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2701c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 27027e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2703c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2704c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2705c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 27067e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 27077e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 27087e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 2709319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCSelType(QualType T) 2710b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 2711319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 2712319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2713319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2714319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2715319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2716319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 2717b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2718b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 2719b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2720c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2721c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2722b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2723c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2724c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2725b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 2726b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 2727b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2728a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 2729390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 2730a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 2731390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 2732390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 2733319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCClassType(QualType T) 27348baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 2735319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCClassType = T; 2736319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2737319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2738319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2739319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2740319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 27418baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 27428baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 27438baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 27448baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 27458baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 27468baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 27478baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 27488baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 27498baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 2750a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 2751a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 27522198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 27532198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2754a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 27552198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 27562198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 27577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 27587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 27597532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 27607532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 27617532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 27627532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 27637532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 27647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27657532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 27667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 27677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 27687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 27697532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 27707532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 27717532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 27727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27737532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 27747532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 27757532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27767532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 27777532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 27787532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 27797532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 27807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(NNS->isDependent() && "Nested name specifier must be dependent"); 27817532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 27837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 27847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 27867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 27877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 27887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27897532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 27907532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 27917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 27937532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 27947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 27957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 27967532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 27977532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 27987532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 27997532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 28007532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 28017532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 28027532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 28037532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 2804b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 2805d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 2806d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 2807d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 2808b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 2809b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 2810b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 2811b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 2812b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 2813b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 2814b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 2815b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 2816b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 2817b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 2818b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 2819b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 2820b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 2821b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 2822b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 2823b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2824b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2825b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 2826b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2827b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2828fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 2829fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 2830fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 2831fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 2832fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 2833fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 2834fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 283540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 2836fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2837fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2838fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 2839fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 2840fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2841b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 2842b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 2843b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 2844b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 2845b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 2846d461777e23204fe8c480302d8ff76f5847605da6Steve Naroff if (Ty->isObjCQualifiedIdType()) 2847b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2848b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 28496ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 28506ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 28516ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 28526ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 28536ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 285416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner const PointerType *PT = Ty->getAsPointerType(); 285516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (PT == 0) 2856b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 2857b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2858b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 285916ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (PT->getPointeeType()->isObjCInterfaceType() || 286016ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // If is has NSObject attribute, OK as well. 286116ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner isObjCNSObjectType(Ty)) 2862fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2863fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 286416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // Check to see if this is 'id' or 'Class', both of which are typedefs for 286516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // pointer types. This looks for the typedef specifically, not for the 286616ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // underlying type. Iteratively strip off typedefs so that we can handle 286716ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // typedefs of typedefs. 286816ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner while (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 286916ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (Ty.getUnqualifiedType() == getObjCIdType() || 287016ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner Ty.getUnqualifiedType() == getObjCClassType()) 287116ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner return true; 287216ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner 287316ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner Ty = TDT->getDecl()->getUnderlyingType(); 287416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner } 287516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner 287616ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner return false; 2877b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 2878b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 28794fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 28804fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 28814fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 28824fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz JahanianQualType::GCAttrTypes ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 2883b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttrs = QualType::GCNone; 28844fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 28854fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 2886b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 28874fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 2888a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // (or pointers to them) be treated as though they were declared 2889a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 2890a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (GCAttrs == QualType::GCNone) { 2891a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (isObjCObjectPointerType(Ty)) 2892a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian GCAttrs = QualType::Strong; 2893a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 2894a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian return getObjCGCAttrKind(Ty->getAsPointerType()->getPointeeType()); 2895a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 2896c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 2897c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 28988df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (!Ty->isPointerType() && !isObjCObjectPointerType(Ty)) 2899c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian return QualType::GCNone; 29004fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 2901b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 29024fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 29034fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 29046ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 29056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 29066ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 2907770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 29086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 29096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 29106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 29116ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 29126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 29136ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 291461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 29156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 29166ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 29173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 29186ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 29196ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 29206ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 29213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 29223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 29236ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 29246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 29256ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 29266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 29276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 29286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 29296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 29306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 29316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 29326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 29336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 29346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 29356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 29366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 29376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 29386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 29396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 29406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 29416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 294291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // All LHS protocols must have a presence on the RHS. 294391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff assert(LHSP->qual_begin() != LHSP->qual_end() && "Empty LHS protocol list?"); 294491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 294591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(), 294691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPE = LHSP->qual_end(); 294791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 294891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 294991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 295091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 295191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 295291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(), 295391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSPE = RHSP->qual_end(); 295491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff !RHSImplementsProtocol && (RHSPI != RHSPE); RHSPI++) { 295591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) 295691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 295791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 295891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 295991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 296091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 296191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 296291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 296391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 29646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 29656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 2966389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 2967389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 2968389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *LHSPT = LHS->getAsPointerType(); 2969389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *RHSPT = RHS->getAsPointerType(); 2970389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2971389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSPT || !RHSPT) 2972389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2973389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2974389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType lhptee = LHSPT->getPointeeType(); 2975389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType rhptee = RHSPT->getPointeeType(); 2976389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* LHSIface = lhptee->getAsObjCInterfaceType(); 2977389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* RHSIface = rhptee->getAsObjCInterfaceType(); 2978389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // ID acts sort of like void* for ObjC interfaces 2979389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (LHSIface && isObjCIdStructType(rhptee)) 2980389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2981389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (RHSIface && isObjCIdStructType(lhptee)) 2982389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2983389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSIface || !RHSIface) 2984389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2985389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return canAssignObjCInterfaces(LHSIface, RHSIface) || 2986389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff canAssignObjCInterfaces(RHSIface, LHSIface); 2987389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 2988389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2989ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 2990ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 2991ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 2992ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 29933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 29943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 29953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 29963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29973d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 29983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 29993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 300072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 300172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 30023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 30033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 30043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 30063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 30073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 300861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 300961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 301061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 301161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 30123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 3014465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 3015465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 30163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 30173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 30183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 30203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 30213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 30223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 30243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 30253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 30263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30277fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 30287fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 30297fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 30303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 30313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 30323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 30333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 30343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 30353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 30363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 30373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 303861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 303961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 304061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 304161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 30423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 30443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 30453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 30467fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 30473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 30503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 30513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 305272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 30533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 3054465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 30553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 30563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 30573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 30583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 30593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 30603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 30613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 30623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 30633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 30643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 30653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 30663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 30673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 30703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 30713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 30727fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 30737fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 30743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 30773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 307872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return getFunctionNoProtoType(retType); 30793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 30803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30813d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 308243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 308343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 308443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 30857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 30867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 30873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 30883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 30897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 30907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 30913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 3092c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 30933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 3094c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 30953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 30973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 30983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3099f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 31003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 31013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 31023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 31033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 31045a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Note that we handle extended qualifiers later, in the 31055a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // case for ExtQualType. 31065a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers()) 31073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 31083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3109852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 3110852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 3111f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 31121adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 31131adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 31141adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 31151adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 31164c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 311707d258756dc856c6987c394a0972884e6ed46765Eli Friedman // Strip off objc_gc attributes off the top level so they can be merged. 311807d258756dc856c6987c394a0972884e6ed46765Eli Friedman // This is a complete mess, but the attribute itself doesn't make much sense. 3119585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (RHSClass == Type::ExtQual) { 312007d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = RHSCan.getObjCGCAttr(); 312107d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 312286f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian QualType::GCAttrTypes GCLHSAttr = LHSCan.getObjCGCAttr(); 31238df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. 312486f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 312586f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 312686f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 312786f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCLHSAttr != GCAttr) || 312886f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCLHSAttr != GCAttr && 312986f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian LHSCan->isPointerType() && !isObjCObjectPointerType(LHSCan) && 313086f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian !isObjCIdStructType(LHSCan->getAsPointerType()->getPointeeType()))) 31318df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 31328df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian 313307d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS = QualType(cast<ExtQualType>(RHS.getDesugaredType())->getBaseType(), 313407d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS.getCVRQualifiers()); 313507d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 31368df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 31378df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 31388df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 31398df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 31408df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 31418df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 314207d258756dc856c6987c394a0972884e6ed46765Eli Friedman return Result; 314307d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3144585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3145585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (LHSClass == Type::ExtQual) { 314607d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = LHSCan.getObjCGCAttr(); 314707d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 31488df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian QualType::GCAttrTypes GCRHSAttr = RHSCan.getObjCGCAttr(); 31498df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. __strong 315086f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 315186f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 315286f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 315386f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCRHSAttr != GCAttr) || 315486f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCRHSAttr != GCAttr && 315586f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian RHSCan->isPointerType() && !isObjCObjectPointerType(RHSCan) && 315686f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian !isObjCIdStructType(RHSCan->getAsPointerType()->getPointeeType()))) 31578df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 315886f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian 315907d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS = QualType(cast<ExtQualType>(LHS.getDesugaredType())->getBaseType(), 316007d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS.getCVRQualifiers()); 316107d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 31628df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 31638df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 31648df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 31658df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 31668df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 31678df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 3168354e53da656237e25518b3fafa3bf84de6e6f57eEli Friedman return Result; 316907d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3170585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3171585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian 31724c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 3173a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 3174a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 3175a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 3176a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 3177a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 3178213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 3179213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 3180213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 3181ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 3182b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 3183b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 3184b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 31853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 31864e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 31874e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 31885fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 31895fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 3190c8d2e77288c07a69cabb755a4ab9feeb7b5a1287Fariborz Jahanian 3191d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff // 'id' and 'Class' act sort of like void* for ObjC interfaces 3192d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (LHSIface && (isObjCIdStructType(RHS) || isObjCClassStructType(RHS))) 31935fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 3194d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (RHSIface && (isObjCIdStructType(LHS) || isObjCClassStructType(LHS))) 31955fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return RHS; 31965fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 3197bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 3198bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 3199bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 3200bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 3201d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (isObjCIdStructType(pType) || isObjCClassStructType(pType)) 3202bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 3203bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 3204bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 3205bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 3206bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 3207bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 3208bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 3209bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3210bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3211bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 3212bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 3213bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 3214d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (isObjCIdStructType(pType) || isObjCClassStructType(pType)) 3215bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 3216bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 3217bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 3218bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 3219bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 3220bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 3221bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 3222bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3223bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 32241adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 32251adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 32263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 32273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 32283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 3229bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 32303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 32313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 32323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 3233bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 32341adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 32353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 3236ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 32373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32384a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 32391adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 324072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 324172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 324272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 324372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 324472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 324572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 324672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 324772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 32487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 32497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 325072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 325172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 325272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 325372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 325472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 325572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 325672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 325772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 325872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 325972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 326072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 326172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 32621adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 32633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 32643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 32653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 32663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 32673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 32683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 326907d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 327061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 327107d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 327261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 32733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 32743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 3275c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 3276c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 3277c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 3278c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 3279c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 3280c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3281c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 3282c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3283c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 3284c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3285c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 3286c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 3287c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 32881adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 32893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 32903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 32913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 32923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 32933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 32943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 32963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 32973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 32983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 329961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 330061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 330161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 330261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 33033bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 33043bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 33053bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 33063bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 33073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 33083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 330961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 331061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 331161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 331261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 33133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 33143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 33153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 33163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 33173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 33183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 33203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 33213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 33223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 33233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 33243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33253bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 33263bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 332761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 33283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33291adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 33303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 333172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 333272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 33333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 3334389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(LHS) && isObjCClassStructType(RHS)) return LHS; 3335389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCClassStructType(LHS) && isObjCIdStructType(RHS)) return LHS; 33363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 33371adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 33383cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 33393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 334064cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 334164cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 334264cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 33433cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 33445a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 33453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 33463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 334761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 334861490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 33495fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 33505a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 33515a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 33525fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 33535fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 33545fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 33555fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 33565fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 33575fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 33583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 335961490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 3360d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 3361d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // FIXME: finish 3362bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 3363bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 33645a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 33655a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 33665a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 33675a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ExtQual: 33685a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: ExtQual types can be compatible even if they're not 33695a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // identical! 33705a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 33715a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // First attempt at an implementation, but I'm not really sure it's 33725a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // right... 33735a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#if 0 33745a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* LQual = cast<ExtQualType>(LHSCan); 33755a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* RQual = cast<ExtQualType>(RHSCan); 33765a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LQual->getAddressSpace() != RQual->getAddressSpace() || 33775a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LQual->getObjCGCAttr() != RQual->getObjCGCAttr()) 33785a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 33795a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman QualType LHSBase, RHSBase, ResultType, ResCanUnqual; 33805a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LHSBase = QualType(LQual->getBaseType(), 0); 33815a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman RHSBase = QualType(RQual->getBaseType(), 0); 33825a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = mergeTypes(LHSBase, RHSBase); 33835a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (ResultType.isNull()) return QualType(); 33845a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResCanUnqual = getCanonicalType(ResultType).getUnqualifiedType(); 33855a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getUnqualifiedType() == ResCanUnqual) 33865a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return LHS; 33875a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (RHSCan.getUnqualifiedType() == ResCanUnqual) 33885a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return RHS; 33895a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getAddrSpaceQualType(ResultType, LQual->getAddressSpace()); 33905a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getObjCGCQualType(ResultType, LQual->getObjCGCAttr()); 33915a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType.setCVRQualifiers(LHSCan.getCVRQualifiers()); 33925a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return ResultType; 33935a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#endif 33947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 33957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 33967532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 33977532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 3398ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 339972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 340072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 3401ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 34027192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 34035426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 3404ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 3405ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 340688054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 3407ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 3408ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 3409ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 3410f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 3411f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 3412f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 3413f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 3414ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 3415ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3416ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3417ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 3418ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 3419ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 3420ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 3421ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 3422ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 3423ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 3424ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 3425ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 3426ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 3427ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 3428ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 3429ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 3430ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 3431ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 3432ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 3433ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 3434ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 34352df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 34362df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 3437ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 3438ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 3439ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 3440ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 3441ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3442ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 34432cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 34442cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 34452cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 344686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 344786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 344886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 344986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 345086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 345186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 345286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 345386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 345486df27bbdbb98c39ec2184695c0561209f91beddChris Lattnerstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 345586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 345686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 345786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 345886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 345986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 346086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 346186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 346286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 346386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 346486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 346586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 346686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 346786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 346886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 346986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 347086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 347186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 347286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 347386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 347486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 347586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 347686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 347786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 347886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 347986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 348086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 348186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 348286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 348386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 348486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 348586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 348686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 348786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 348886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 348986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 349086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 349186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 349286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 349386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 349486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 349586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 349686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 349786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 349886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 349986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 350086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 350186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 350286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 350386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 350486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 350586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 350686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 350786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 350886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 350986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 351086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 351186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 351286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 351386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 351486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 351586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 351686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 351786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 351886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 351986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 352086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 352186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 352286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 352386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 352486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 352586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 352686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 352786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 352886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 352986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 353086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 353186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 353286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 353386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 353486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 353586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 353686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 353786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 353886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 353986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 354086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 354186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 354286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 354386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 354486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 354586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 354686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 354786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 354886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 354986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 355086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 355186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 355286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 355386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 355486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 355586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 355686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 355786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 355886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 355986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 356086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 356186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 356286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 356386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 356486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 356586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 356686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 356786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 356886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 356986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 357086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 357186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 357286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 357386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 357486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 357586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 357686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'P': { 357786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner IdentifierInfo *II = &Context.Idents.get("FILE"); 357886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner DeclContext::lookup_result Lookup 357986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner = Context.getTranslationUnitDecl()->lookup(Context, II); 358086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Lookup.first != Lookup.second && isa<TypeDecl>(*Lookup.first)) { 358186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getTypeDeclType(cast<TypeDecl>(*Lookup.first)); 358286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 358386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 358486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else { 358586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = ASTContext::GE_Missing_FILE; 358686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 358786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 358886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 358986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 359086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 359186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 359286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 359386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 359486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 359586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 359686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 359786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 359886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 359986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 360086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 360186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 360286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 360386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 360486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 360586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 360686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Type.getQualifiedType(QualType::Const); 360786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 360886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 360986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 361086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 361186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 361286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 361386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 361486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 361586df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 361686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 361786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 361886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 361986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 362086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 362186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 362286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 362386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 362486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 362586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 362686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 362786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 362886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 362986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 363086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 363186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 363286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 363386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 363486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 363586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 363686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 363786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 363886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 363986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 364086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 364186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 364286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 364386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 364486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 364586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 3646