ASTContext.cpp revision 7e7eb3da052a6d80ddf2377cab0384c798f73f75
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), 402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments(false), FreeMemory(FreeMem), Target(t), 412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 42e4f2142d00fa5fdb580c4e2413da91882d955381Chris Lattner BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 43e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 44e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 45e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 46e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 47e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 514b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 54b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 55b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 56b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 57b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 65b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 66b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 67b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 68b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 73ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 741ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 751ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 761ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNSEnd = NestedNameSpecifiers.end(); 77e7dcd782df0e1cc3a63e429a866098e69db39153Douglas Gregor NNS != NNSEnd; 781ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 791ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 80ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 81ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 82ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 83ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 84b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 872cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid 882cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 892cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 902cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 912cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 957c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 96dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 97dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) 0, 98dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 99dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 100dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 101dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 102c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 105dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 108dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 109dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 110dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 111dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 112dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 113dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 115dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 116dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 117dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 118dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1192cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1202cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1212cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1222cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1232cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 128f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Types.push_back((R = QualType(new (*this,8) BuiltinType(K),0)).getTypePtr()); 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 14015b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 16264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1632df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1642df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1652df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1662df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1673a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1683a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1693a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1703a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 17164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1728e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 173898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 174898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 175898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 176898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 177898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 178898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 179898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 180898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 1818e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 182e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // Placeholder type for C++0x auto declarations whose real type has 183e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 184e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 185e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 1908e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 1917e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 192a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 1937e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 194a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 1958baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 1968baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 197a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 19833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 19933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 20033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2016e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2026e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2036e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 2072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor class BeforeInTranslationUnit 2082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 2092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 2102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 2122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 2132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 2152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 2162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 2172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 2182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 2192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 2212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 2232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 2252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 2272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 2282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 2292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorstatic bool 2302e22253e03e175144aeb9d13350a12fd83f858beDouglas GregorisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 2312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 2322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *BufferStart 2332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 2342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 2352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 2362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 2382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 2412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 2422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 2442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 2472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 2482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 2502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// it has one. 2512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 2522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 2532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 2542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 2562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 2572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor llvm::DenseMap<const Decl *, std::string>::iterator Pos 2582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 2592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 2602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 2612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If we have an external AST source and have not yet loaded comments from 2632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 2642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 2652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 2662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 2672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 2692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 2702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 2712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 2732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 2742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If there are no comments anywhere, we won't find anything. 2762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 2772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 2782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 2802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 2812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 2822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 2832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 2842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 2862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 2872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = std::lower_bound(Comments.begin(), Comments.end(), 2882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 2892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 2902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 2922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 2932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DeclStartDecomp 2942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 2952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *FileBufferStart 2962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 2972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 2992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 3002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 3012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 3022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 3052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 3062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 3082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 3092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 3102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 3112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 3122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + 3132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getFileOffset(LastComment->getBegin()), 3142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 3152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 3162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 3202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 3222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 3242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 3282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 3292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 3302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 3332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 3342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 3372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 3382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned DeclStartLine 3392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 3402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 3412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 3432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 3452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 3462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 3472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 3502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 3512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 3522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned ExpectedLine 3532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 3552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 3562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 3572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 3582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 3592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 3602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 3622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 3632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 3642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 3652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 3682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 3692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 3702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 3712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 3742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 3752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 3762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 3772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 3782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 3812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExpectedLine 3822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 3832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 3862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 3872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 3882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 3892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 3902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 3912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 3922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 3932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 3942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 3952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 3962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 3972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 3982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 4012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + 4022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getFileOffset(LastComment->getBegin()), 4032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 4062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 407464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 408464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 409464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 410a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 411b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 412b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 413b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 414b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 415b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 416b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 417b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 418b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 419b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 420b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 421b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 422b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 423b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 424af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// getDeclAlign - Return a conservative estimate of the alignment of the 425af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 426af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 427b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 428dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 429dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 43040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 431dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 432dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 433af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 434af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 4354cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson if (const ReferenceType* RT = T->getAsReferenceType()) { 4364cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 437f0930235ce58a91aa3b840bece9052f44d630536Anders Carlsson Align = Target.getPointerAlign(AS); 4384cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson } else if (!T->isIncompleteType() && !T->isFunctionType()) { 4394cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 440dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 441dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 442dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 443dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 444dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 445af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 446dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 447dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 448af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 449b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 450a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 451a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 452d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 4531d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 4545e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 4555e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 456a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 45772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 45872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 45918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 46072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 46172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 46218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 46372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 46472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 4655d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 4665d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 46718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 46818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 46918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 47018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 47118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 47272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 473fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 47418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 47518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 47618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 47718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 4787e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor case Type::ConstantArrayWithExpr: 4797e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor case Type::ConstantArrayWithoutExpr: 480fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 4811d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 482030d8846c7e520330007087e949f621989876e3aChris Lattner 48398be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 4849e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 485030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 486030d8846c7e520330007087e949f621989876e3aChris Lattner break; 4875c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 488213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 489030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 490030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 49198be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 4929e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 4934bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 4946fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 4956fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 4966fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 4976fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 498030d8846c7e520330007087e949f621989876e3aChris Lattner break; 499030d8846c7e520330007087e949f621989876e3aChris Lattner } 5005d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 5019e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 502a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 503692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 504d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 50518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 50618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 50718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 50818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 50918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 5106f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 5119e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 5129e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 5136f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 514692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 515692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 516692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 5176f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 5189e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 5199e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 5206f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 52164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 52264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 52364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 52464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 525692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 5266f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 5279e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 5289e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 5296f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 530692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 5316f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 5329e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 5339e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 5346f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 535692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 5366f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 5379e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 5389e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 5396f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 540692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 5416f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 5429e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 5439e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 5446f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 545ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 546ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 547ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 548ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 549ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 5506f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 5519e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 5529e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 5536f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5546f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 5555426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 5565426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 5576f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 5599e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 5609e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 5616f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5626e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 5636e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 5646e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 5651590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 566a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 567bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 568f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 569f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 570f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 571f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 572736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 573f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 574f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 575f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian case Type::ExtQual: 57698be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 57798be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 578f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian return getTypeInfo(QualType(cast<ExtQualType>(T)->getBaseType(), 0)); 579d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 58072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 5815426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 582f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 5836f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 584485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 585485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 586485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 587485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 588485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 589485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 590f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 591f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 5925426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 593f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 594f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 595f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 5967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 5977c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 5987ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 5995d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 6006f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 6016f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 602bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 603f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 6041cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // FIXME: This is ABI dependent. We use the Itanium C++ ABI. 6051cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // http://www.codesourcery.com/public/cxx-abi/abi.html#member-pointers 6061cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // If we ever want to support other ABIs this needs to be abstracted. 6071cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson 608f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 6091cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson std::pair<uint64_t, unsigned> PtrDiffInfo = 6101cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 6111cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 612f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 613f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 6141cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 6151cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 616f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 6175d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 6185d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 6195d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 6205d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 62198be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 6229e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 6235d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 6245d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 6255d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 62644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 6271d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 62844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 62944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 63044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 63144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 63244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 63372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 63472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 6351d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 6361d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 6371d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 6388389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 6398389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 6408389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 6418389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 6428389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 6431d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 6447176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 6457176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 6461d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 6477176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 6487176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 6497176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 650dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 651a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 6527532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 65318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 65418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 65540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 65618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = Aligned->getAlignment(); 65718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 65818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 65918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 6607532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 6617176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 66218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 66318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 66418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 66518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 66618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 66718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 66818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 66918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 670395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 671395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 672395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 673395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 67418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 67518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 67618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 67718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 67818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(getCanonicalType(T) != T && 67918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 68018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 68118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 68218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 68318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 68418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 685d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 686464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 6879e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 688a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 689a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 69034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 69134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 69234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 69334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 69434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 69534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 6961eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 6971eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 6981eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (const ComplexType* CT = T->getAsComplexType()) 6991eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 7001eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 7011eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 7021eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 7031eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 70434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 70534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 70634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 70734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 7088b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 7098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 7103b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 7118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 7123b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 7138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 7148b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 7158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 7163b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 7173b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 7183b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 71940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 7203b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 7218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 7238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 7248b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 7259a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman FieldSize = BitWidthExpr->EvaluateAsInt(Context).getZExtValue(); 7268b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7278b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 7288b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 7298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 7308b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7313b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 7323b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 7333b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 7343b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 7353b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 7368b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 7373b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 7383b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 73940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 7408b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 7418b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7428b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 7438b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 7448b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 7458b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 7468b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7478b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 7488b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 7498b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 7508b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 7518389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 7528389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 7538b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 7548b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 7558b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 7568b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 757c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 7588b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 7592f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson } else if (const ReferenceType *RT = FD->getType()->getAsReferenceType()) { 7602f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 7612f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson FieldSize = Context.Target.getPointerWidth(AS); 7622f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson FieldAlign = Context.Target.getPointerAlign(AS); 7638b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 7648b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 7658b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 7668b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 7678b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 7688b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 7698b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7703b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 7713b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 7723b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 7733b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 7743b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 7753b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 7763b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 7773b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 7783b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 77940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 7808b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 7818b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7828b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 7838b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 7848b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 7858b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 7878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 7888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 7908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 7918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 7928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 7938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 7948b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 7958b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 796d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar // Remember the next available offset. 797d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar NextOffset = Size; 798d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar 7998b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 8008b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 8018b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 8028b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 803a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 804a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 805a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 806a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 807a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 808f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 809a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 810a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 811a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 812a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 813a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 814a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 815a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 816a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 817a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 818a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 819a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 820a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 8218e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 8228e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 8238e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 8248e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 8258e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 8268e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 8278e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 8288e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 8298e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 8308e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8318e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 8328e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 8338e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8348e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8359820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 8369820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 83717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 83817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8399820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8409820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8419820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8429820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 8439820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8449820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8459820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 8469820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8479820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8489820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 8499820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 8509820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 8519820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 8529820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 85317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 85417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8559820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8569820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8579820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8589820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 8599820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 8609820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8619820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8629820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 8639820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 8649820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8659820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8669820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8678e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 8688e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 86917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 87017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8718e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8728e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 8758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 8788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) 8828e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian{ 8838e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 88417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 88517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8868e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8878e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8888e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8898e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 8908e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 8918e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8928e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8938e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 8948e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 8958e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8968e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8978e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8988e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 899b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 900b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 901b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 902b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 903b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 90444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 905b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 906b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 907532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 908532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 90944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 910d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCContainerDecl *Key = 911d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 912d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 913d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 91444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 915453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar unsigned FieldCount = D->ivar_size(); 916453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 917453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 9188e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 9198e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian FieldCount += SynthCount; 920d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 921453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 922453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 923453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 9248e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 925453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 926453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 927453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 9286a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 9296a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 9306a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 9316a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 932d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar 933913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // We start laying out ivars not at the end of the superclass 934913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // structure, but at the next byte following the last field. 935913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar uint64_t Size = llvm::RoundUpToAlignment(SL.NextOffset, 8); 936d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar 937d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(Size, Alignment); 9386a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 9396a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 940d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(); 9416a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 9426a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 94344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 9443b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 94540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 9463b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 94744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 94840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 94944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 95044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 95144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 95244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 95344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 9548e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVector<ObjCIvarDecl*, 16> Ivars; 9558e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ShallowCollectObjCIvars(D, Ivars, Impl); 9568e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (unsigned k = 0, e = Ivars.size(); k != e; ++k) 9578e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian NewEntry->LayoutField(Ivars[k], i++, false, StructPacking, *this); 9588e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 95944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 96044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 96144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 96244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 96344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 96444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 965b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 966b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 967b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 968b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 969b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 970b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 971b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 972b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 973b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 974b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 97588a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 976464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 977464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 97898be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 9794b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 9804b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 9814bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 982464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 98388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 984464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 9854bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 98688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 98788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 98888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 989464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 9904bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 991e267ff35b2f4e9d2b0d8bf24109d41cc7398b61bDouglas Gregor // FIXME: Avoid linear walk through the fields, if possible. 99217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis NewEntry->InitializeLayout(std::distance(D->field_begin(), D->field_end())); 99339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 994464175bba1318bef7905122e9fda20cff926df78Chris Lattner 9953b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 99640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 9973b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 9983b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 99940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 10008b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 10018b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 10024bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 10034bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 10044bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 100544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 100617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = D->field_begin(), 100717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = D->field_end(); 100844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 100944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 10104bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 10114bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 10124bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 10131590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl NewEntry->FinalizeLayout(getLangOptions().CPlusPlus); 10145d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 1015464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1016464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1017a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1018a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1019a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1020a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 1021f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1022f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1023f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1024f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1025b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 1026b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 1027b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 1028b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1029b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr = QualType::GCNone; 1030b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 1031b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 1032b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 1033b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 1034b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 1035b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getAddressSpace() == 0 && 1036b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 1037b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttr = EQT->getObjCGCAttr(); 1038b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 1039b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 1040f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 1041b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Check if we've already instantiated this type. 1042ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 1043b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 1044ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 1045f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 1046b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 1047b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 1048ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 1049ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 1050ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 1051b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (!TypeNode->isCanonical()) { 1052f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Canonical = getAddrSpaceQualType(CanT, AddressSpace); 1053ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1054b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 1055f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 1056f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1057ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 1058b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 1059b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 1060f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 1061ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 1062b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 1063ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1064ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1065b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 1066b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr) { 1067d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1068b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1069d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 1070d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 10714027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 10724027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType Pointee = T->getAsPointerType()->getPointeeType(); 10734027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (Pointee->isPointerType()) { 10744027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 10754027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 10764027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10774027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 1078b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 1079b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 1080b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1081b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 1082b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned AddressSpace = 0; 1083b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 1084b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 1085b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 1086b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 1087b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getObjCGCAttr() == QualType::GCNone && 1088b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 1089b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner AddressSpace = EQT->getAddressSpace(); 1090b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 1091b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 1092d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 1093d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check if we've already instantiated an gc qual'd type of this type. 1094d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian llvm::FoldingSetNodeID ID; 1095b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 1096d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian void *InsertPos = 0; 1097d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 1098b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 1099d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 1100d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // If the base type isn't canonical, this won't be a canonical type either, 1101d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // so fill in the canonical type field. 11025a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: Isn't this also not canonical if the base type is a array 11035a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // or pointer type? I can't find any documentation for objc_gc, though... 1104d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType Canonical; 1105d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (!T->isCanonical()) { 1106b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Canonical = getObjCGCQualType(CanT, GCAttr); 1107d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 1108b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 1109d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 1110d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1111d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 1112b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 1113b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 1114d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 1115d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Types.push_back(New); 1116b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 1117d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1118a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 11265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1135f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1139f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1141f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1147f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 1148f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 1149f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 1150f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 1151f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 1152f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 1153f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 1154f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 11575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1172f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1176f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1178f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11845618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 11855618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 11865618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1187296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1188296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 11895618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 11905618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 11915618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 11925618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 11935618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 11945618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 11955618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 11965618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 11975618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 1198296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 11995618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 12005618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 12015618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 12025618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 12035618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12045618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 12055618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 12065618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1207f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12085618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 1209f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 12105618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 12115618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 12125618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 12135618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 12145618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12157c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 12167c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 12177c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 12215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12247c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 12257c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 12277c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 12295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 12327c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 12337c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12347c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 12357c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 12367c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 12377c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12387c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 12397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12407c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *New = new (*this,8) LValueReferenceType(T, Canonical); 12417c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 12427c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 12437c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 12447c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 12457c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12467c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 12477c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 12487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 12497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 12507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 12517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 12527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 12537c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 12557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 12567c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 12587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 12607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 12617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 12627c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 12637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 12647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 12677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1268f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *New = new (*this,8) RValueReferenceType(T, Canonical); 12725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 12745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1277f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1278f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 1279f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 1280f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 1281f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1282f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1283f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1284f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1285f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1286f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1287f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1288f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1289f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1290f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1291f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1292f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1293f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1294f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1295f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1296f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1297f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1298f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1299f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1300f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1301f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1302f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 1303f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1304f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1305f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1306f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1307f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1308fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 1309fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 1310fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 131138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1312c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1313c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1314587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman assert((EltTy->isDependentType() || EltTy->isConstantSizeType()) && 1315587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1316587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 131738aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 131838aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 131938aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 132038aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 132138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner 13225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 13230be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 13245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13267192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 13277192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 13285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 13295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 13315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 13335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 1334f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1335c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 13365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13377192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 13387192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1339f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1342566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 1343f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 13447192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 13455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13497e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// getConstantArrayWithExprType - Return a reference to the type for 13507e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// an array of the specified element type. 13517e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType 13527e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorASTContext::getConstantArrayWithExprType(QualType EltTy, 13537e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &ArySizeIn, 13547e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *ArySizeExpr, 13557e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier ASM, 13567e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 13577e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 13587e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Convert the array size into a canonical width matching the pointer 13597e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // size for the target. 13607e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor llvm::APInt ArySize(ArySizeIn); 13617e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13627e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 13637e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Compute the canonical ConstantArrayType. 13647e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor QualType Canonical = getConstantArrayType(getCanonicalType(EltTy), 13657e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 13667e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Since we don't unique expressions, it isn't possible to unique VLA's 13677e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // that have an expression provided for their size. 13687e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayWithExprType *New = 13697e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)ConstantArrayWithExprType(EltTy, Canonical, 13707e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ArySizeExpr, 13717e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ASM, EltTypeQuals, Brackets); 13727e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Types.push_back(New); 13737e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return QualType(New, 0); 13747e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor} 13757e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 13767e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// getConstantArrayWithoutExprType - Return a reference to the type for 13777e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// an array of the specified element type. 13787e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType 13797e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorASTContext::getConstantArrayWithoutExprType(QualType EltTy, 13807e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &ArySizeIn, 13817e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier ASM, 13827e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals) { 13837e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Convert the array size into a canonical width matching the pointer 13847e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // size for the target. 13857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor llvm::APInt ArySize(ArySizeIn); 13867e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13877e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 13887e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Compute the canonical ConstantArrayType. 13897e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor QualType Canonical = getConstantArrayType(getCanonicalType(EltTy), 13907e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 13917e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayWithoutExprType *New = 13927e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)ConstantArrayWithoutExprType(EltTy, Canonical, 13937e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 13947e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Types.push_back(New); 13957e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return QualType(New, 0); 13967e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor} 13977e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 1398bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1399bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 14007e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 14017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1402c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 14037e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14047e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1405c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1406c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1407c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1408566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 14097e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)VariableArrayType(EltTy, QualType(), 14107e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor NumElts, ASM, EltTypeQuals, Brackets); 1411c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1412c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1413c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1414c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1415c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1416c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1417898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1418898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 1419898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 1420898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 14217e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 14227e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1423898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 14247e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14257e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1426898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1427898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1428898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1429898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 1430898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 1431898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1432566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek DependentSizedArrayType *New = 14337e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new (*this,8) DependentSizedArrayType(EltTy, QualType(), 14347e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor NumElts, ASM, EltTypeQuals, 14357e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Brackets); 1436898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1437898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 1438898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1439898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1440898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1441898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1442c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1443c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1444c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1445c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 14460be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1447c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1448c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 1449c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 1450c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1451c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1452c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1453c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1454c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1455c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1456c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1457c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1458f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 14592bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1460c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1461c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1462c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1463c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1464f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14652bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1466c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 14677e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor IncompleteArrayType *New 14687e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor = new (*this,8) IncompleteArrayType(EltTy, Canonical, 14697e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ASM, EltTypeQuals); 1470c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1471c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1472c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1473c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1474fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1475fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 147673322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 147773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 147873322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 14795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1481f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 148273322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 14835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 14855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 148673322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 14875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 14885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 14895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 14905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 14925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 14935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 14945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1495f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 14965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 14985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1499f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1501f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 15035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 15045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1507213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 150873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1509213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 151073322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 151173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1512f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1513213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 151473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 151573322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 151673322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1517213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 151873322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 151973322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 152073322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 152173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 152273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 152373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 152473322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 152573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1526213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 152773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 152873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 152973322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1530f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 153173322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1532f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 153373322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 153473322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 153573322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 153673322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 153773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 15389cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas GregorQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 15399cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 15409cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 15419cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor DependentSizedExtVectorType *New = 15429cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor new (*this,8) DependentSizedExtVectorType(vecType, QualType(), 15439cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SizeExpr, AttrLoc); 15449cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 15459cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor DependentSizedExtVectorTypes.push_back(New); 15469cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 15479cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 15489cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 15499cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 155072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 15515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 155272564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy) { 15535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 15545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 15555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 155672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType::Profile(ID, ResultTy); 15575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 155972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionNoProtoType *FT = 156072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 15615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 15625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 15645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 156572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy)); 15665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 156872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 156972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1570f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 157372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *New =new(*this,8)FunctionNoProtoType(ResultTy,Canonical); 15745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 157572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 15765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 158161710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1582971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1583465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1584465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 1585465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl const QualType *ExArray) { 15865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 15875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 15885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 158972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1590465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1591465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs, ExArray); 15925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 159472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionProtoType *FTP = 159572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 15965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1597465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1598465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 15995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 1600465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl if (hasExceptionSpec) 1601465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl isCanonical = false; 16025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 16035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 16045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 16055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1607465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 16085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 16095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 16105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 16115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 16125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1613f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 1614465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1615f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1616beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 1617bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl isVariadic, TypeQuals); 1618465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 16195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 162072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 162172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1622f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1624465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 162572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1626465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1627465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 162872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *FTP = 1629465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1630465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 1631465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs*sizeof(QualType), 8); 163272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1633465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1634465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl ExArray, NumExs, Canonical); 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 163672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 16375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 16385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16402ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 16412ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 16424b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 16431e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 16442ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 16452ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 16461e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 16472ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1648fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1649fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 1650fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 16512ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 165249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1653c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1654566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1655566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1656f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1657f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 1658566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1659566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1660566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1661566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1662f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1663f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 16644b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 166549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 16662ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 166749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 16684b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 166949aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 16702ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 16712ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 16725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 16735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 16745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 16755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 16765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1677f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 167872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Decl->TypeForDecl = new(*this,8) TypedefType(Type::Typedef, Decl, Canonical); 16795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 16805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 16815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1683a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 16843536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 16853b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel DunbarQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl) { 16863536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 16873536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 16883b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar ObjCInterfaceDecl *OID = const_cast<ObjCInterfaceDecl*>(Decl); 16893b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar Decl->TypeForDecl = new(*this,8) ObjCInterfaceType(Type::ObjCInterface, OID); 16903536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 16913536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 16923536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 16933536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1694fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 169576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// parameter or parameter pack with the given depth, index, and (optionally) 169676e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 1697fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas GregorQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 169876e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1699fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1700fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 170176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1702fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 1703fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType *TypeParm 1704fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1705fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1706fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1707fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1708fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 170976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 171076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 171176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack, 171276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson Name, Canon); 171376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 171476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack); 1715fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1716fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1717fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1718fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1719fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1720fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1721fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 172255f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorQualType 17237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 17247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 17257532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 17267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 172740808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor if (!Canon.isNull()) 172840808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor Canon = getCanonicalType(Canon); 1729fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 173055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor llvm::FoldingSetNodeID ID; 17317532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType::Profile(ID, Template, Args, NumArgs); 173240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 173355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void *InsertPos = 0; 17347532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType *Spec 17357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 173655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 173755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (Spec) 173855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 173955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 17407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *Mem = Allocate((sizeof(TemplateSpecializationType) + 174140808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 174240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 8); 17437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor Spec = new (Mem) TemplateSpecializationType(Template, Args, NumArgs, Canon); 174455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 17457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 174655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 174755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 174855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 174955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1750e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas GregorQualType 1751ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1752e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1753e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1754ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1755e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1756e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 1757e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameType *T 1758e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1759e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1760e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1761e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1762ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, 1763ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1764e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1765e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1766e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1767e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1768e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1769d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1770d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1771d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1772d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1773d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1774d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1775d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1776d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1777d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1778d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1779d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1780d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1781d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1782d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1783d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 1784d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType *T 1785d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1786d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1787d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1788d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1789d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1790d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1791d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 1792d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1793d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1794d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 17951734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorQualType 17961734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorASTContext::getTypenameType(NestedNameSpecifier *NNS, 17971734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 17981734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 17991734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 18001734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18011734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 18021734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 18031734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 18041734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 18051734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 18061734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = CanonType->getAsTemplateSpecializationType(); 18071734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 18081734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 18091734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 18101734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18111734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18121734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18131734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 18141734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 18151734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18161734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 18171734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType *T 18181734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 18191734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 18201734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 18211734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18221734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 18231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 18241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 18251734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 18261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 18271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 182888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 182988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 183088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 183188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 18322e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 183388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 183488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 183588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 183688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 183788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 183888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 183988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 184088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 184188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 184288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 184388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 184488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 184588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 184688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1847d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 1848d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 1849d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve NaroffQualType ASTContext::getObjCObjectPointerType(ObjCInterfaceDecl *Decl, 1850d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCProtocolDecl **Protocols, 1851d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 1852d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // Sort the protocol list alphabetically to canonicalize it. 1853d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (NumProtocols) 1854d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff SortAndUniqueProtocols(Protocols, NumProtocols); 1855d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1856d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 1857d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerType::Profile(ID, Decl, Protocols, NumProtocols); 1858d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1859d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 1860d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 1861d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1862d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QT, 0); 1863d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1864d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // No Match; 1865d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerType *QType = 1866d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff new (*this,8) ObjCObjectPointerType(Decl, Protocols, NumProtocols); 1867d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1868d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 1869d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 1870d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 1871d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 187288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1873065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1874065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1875a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1876a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 187788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 187888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 187988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 18804b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1881b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 18824b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 18834b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1884a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1885a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 18864b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 18874b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 18884b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1889a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1890f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 1891566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek 18924b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1893a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 18944b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 18954b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 18964b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 189772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 189872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 18999752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 19009752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 19019752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 190272564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 1903f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 190472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor TypeOfExprType *toe = new (*this,8) TypeOfExprType(tofExpr, Canonical); 19059752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 19069752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1907d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1908d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 19099752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 19109752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 19119752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 19129752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 19139752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1914d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1915f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1916f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 19179752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 19189752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1919d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1920d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 192160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 192260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 192360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 1924a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 1925a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 1926a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson 192760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 192860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 192960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 193060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 193160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 193260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 193360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 193460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 193560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 193660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 193760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 193860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 193960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 194060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 194160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 194260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 194360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 194460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 194560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 194660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 194760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 194860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 194960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 195060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 195160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 195260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 1953395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 1954395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 1955395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 1956395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// an issue. This doesn't effect the type checker, since it operates 1957395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 1958395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 195960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = getDecltypeForExpr(e, *this); 196060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson DecltypeType *dt = new (*this, 8) DecltypeType(e, getCanonicalType(T)); 1961395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 1962395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 1963395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 1964395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 19655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 19665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 19675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1968d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 19692ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 19705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 19735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 19745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 19755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1976b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 19775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 197964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 198064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 198164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 198264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 198364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 198464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 198564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 198664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 198764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 198864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 198964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 199064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 199164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 199264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 19938b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 19948b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 19958b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1996b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 19978b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 19988b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1999e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2000e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2001e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2002e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 200377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 200477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 200577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 200677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 200777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 200877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 200977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 201077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 2011c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2012c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 2013c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 2014c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 2015c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2016c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 2017c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 2018c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2019c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 2020c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 2021c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2022c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2023c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 2024c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 2025c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 2026c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2027c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2028c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 2029c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 2030c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 2031c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 2032c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 2033c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2034898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 20357e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getDependentSizedArrayType(NewEltTy, 20367e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getSizeExpr(), 2037898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 20387e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getIndexTypeQualifier(), 20397e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange()); 2040898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2041c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 20427e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getVariableArrayType(NewEltTy, 20437e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getSizeExpr(), 2044c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 20457e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getIndexTypeQualifier(), 20467e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange()); 2047c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2048c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 20497da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas GregorDecl *ASTContext::getCanonicalDecl(Decl *D) { 2050c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor if (!D) 2051c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor return 0; 2052c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor 20537da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (TagDecl *Tag = dyn_cast<TagDecl>(D)) { 20547da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor QualType T = getTagDeclType(Tag); 20557da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return cast<TagDecl>(cast<TagType>(T.getTypePtr()->CanonicalType) 20567da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor ->getDecl()); 20577da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 20587da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 20597da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (ClassTemplateDecl *Template = dyn_cast<ClassTemplateDecl>(D)) { 20607da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Template->getPreviousDeclaration()) 20617da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Template = Template->getPreviousDeclaration(); 20627da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return Template; 20637da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 20647da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 20657da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (const FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) { 20667da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Function->getPreviousDeclaration()) 20677da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Function = Function->getPreviousDeclaration(); 20687da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return const_cast<FunctionDecl *>(Function); 20697da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 20707da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 2071127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(D)) { 2072127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor while (FunTmpl->getPreviousDeclaration()) 2073127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor FunTmpl = FunTmpl->getPreviousDeclaration(); 2074127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor return FunTmpl; 2075127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor } 2076127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor 20777da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (const VarDecl *Var = dyn_cast<VarDecl>(D)) { 20787da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Var->getPreviousDeclaration()) 20797da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Var = Var->getPreviousDeclaration(); 20807da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return const_cast<VarDecl *>(Var); 20817da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 20827da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 20837da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return D; 20847da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor} 20857da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 208625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 208725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 208825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 208925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 20907da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return TemplateName(cast<TemplateDecl>(getCanonicalDecl(Template))); 209125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 209225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 209325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 209425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 209525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 209625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 2097d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2098d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 2099d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (!NNS) 2100d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2101d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2102d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2103d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2104d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 2105d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 2106d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2107d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2108d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2109d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2110d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2111d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2112d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2113d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2114d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2115d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2116d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 2117d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *Prefix = 0; 2118d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2119d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: This isn't the right check! 2120d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T->isDependentType()) 2121d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Prefix = getCanonicalNestedNameSpecifier(NNS->getPrefix()); 2122d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2123d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, Prefix, 2124d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2125d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2126d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2127d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2128d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2129d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2130d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2131d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2132d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2133d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2134d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2135d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2136d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2137c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2138c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2139c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2140c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 2141c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2142c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2143c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2144c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2145c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2146c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 2147c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 2148c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2149f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Make sure to look through type qualifiers (like ExtQuals) for the negative 2150c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 2151c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 2152c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 2153c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 2154c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2155c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 2156c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2157c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 2158c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2159c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2160c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 2161c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 2162c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 2163c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 2164c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 2165c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2166f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Rip through ExtQualType's and typedefs to get to a concrete type. 2167c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 2168f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(Ty)) { 2169f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian AddrSpace = EXTQT->getAddressSpace(); 2170f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Ty = EXTQT->getBaseType(); 2171c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 2172c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 2173c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 2174c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 2175c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 2176c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 2177c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2178c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2179c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2180c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2181c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 2182c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 2183c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 2184c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2185c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2186c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2187c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2188c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 2189c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 2190c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 2191f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian NewEltTy = getAddrSpaceQualType(NewEltTy, AddrSpace); 2192c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 2193c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2194c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2195c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2196c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 2197c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 2198c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2199c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2200c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 22017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor IAT->getIndexTypeQualifier())); 2202898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2203898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 2204898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2205898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 2206898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 2207898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 2208898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 22097e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getIndexTypeQualifier(), 22107e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 2211c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2212c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 22137e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 22147e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getSizeExpr(), 2215c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 22167e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getIndexTypeQualifier(), 22177e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 221877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 221977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 222077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2221e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2222e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2223e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2224e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2225e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2226e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2227e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2228c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2229c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2230c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2231c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2232c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2233c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 2234e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2235c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2236e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2237e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 2238c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 2239e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2240e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2241d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 22426183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 22436183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 22446183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 22456183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 22466183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 22476183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 22486183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 22496183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 22505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 22515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2252a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2253ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 22545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2255a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2256d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 2257ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 2258a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 22595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 22605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 22615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 22625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 22645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2265716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 2266716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 2267716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2268716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 22691361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 22701361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 22711361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 22721361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 22731361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2274716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2275f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2276f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2277f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2278f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2279f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 22801361b11066239ea15764a2a844405352d87296b3Chris Lattner 22811361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 22821361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 22831361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 22841361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 22851361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 22861361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 22875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 22895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22907cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 22917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 22927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 22937cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 2294a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2295a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2296a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 2297a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2298a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2299fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2300a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2301fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2302fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 23035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2305f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2306f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2307f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2308f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2309f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 2310f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2311f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 2312f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2313a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2314a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2315a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2316f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 2317f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 2318f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 23191b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 2320f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 2321f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2322f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 23237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 23247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2325f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 23267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 23277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 23287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 23297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2330f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 23317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 23327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2333f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 23347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 23357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2336f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 23377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 23387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2339f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 23407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 23417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2342f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 23432df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 23442df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 23452df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2346f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2347f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2348f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 23497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 23507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 23517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 23527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2353f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2354f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 23557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 23565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2357f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2358f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 23595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 23617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 23625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 23647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 23657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 23667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 23677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 23687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 23697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 23707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 23717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 23727cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 23737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 23747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 23757cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 23767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 23777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 23787cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 23797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 23807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 23817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 23827cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 23835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 23857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 23867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 23877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 23885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 238971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 239071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 239171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 239271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 23936c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 239439ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2395df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2396f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 239771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 239871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 239971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 2400f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2401f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 240271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 2403f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 240471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 2405f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 240671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 240744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 240844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 240944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 241044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 241144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 24124afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 241317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 241444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 241544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 241644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 241771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 241871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 241971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 24208467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2421b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2422319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 2423319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2424319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2425319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2426319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2427319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2428bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 2429bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 2430bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 243144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 243244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 243344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 243444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2435bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2436bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2437bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 2438bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2439bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2440bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2441bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 2442bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 244344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 244444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 244544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 244644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 244744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 24484afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 244917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 245044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 2451bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 245244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2453bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 2454bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2455bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2456bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2457bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2458319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 2459319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2460319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2461319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2462319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2463319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2464e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2465e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 24662d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2467e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2468bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2469bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 247085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 247185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 247285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 247385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2474a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 247533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2476a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 247798be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 247833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 247933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 248033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 248198be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 248233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 248333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 248498be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 248598be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 248633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 248733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2488a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 248933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 2490c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2491e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2492c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2493ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2494a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 249533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 24960d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 249733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 249833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 249933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 250033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 250198be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 250233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 250333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 250433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 250589951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 250689951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 250789951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 250889951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 2509a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 251033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 251133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 251233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 251333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 251433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 251533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 251633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 251733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 251889951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 251989951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 252089951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 25214306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 25224306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 2523ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 2524ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 2525ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 2526bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 2527ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2528ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 2529ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2530ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 253133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 25324306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 25330d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 253433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2535a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 253633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 253733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 253833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2539c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 254083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2541c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2542c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 254383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 254483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 254583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 254683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 254783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 254883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 254983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 255083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 255183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 255283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 255383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 255483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 255583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 255683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 255783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 255883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 255983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 256083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 256183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 256283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 256383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 2564c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2565c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2566e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2567c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2568c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2569c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2570c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2571c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2572c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 2573c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 2574c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2575c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 257617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 2577653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2578c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2579c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2580c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2581c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2582c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2583c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2584c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2585c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2586c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2587c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 258861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2589c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 259017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 2591653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2592c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2593c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2594c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2595c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2596c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2597c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2598c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2599c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2600c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2601c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2602c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2603c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2604c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2605c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 2606c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2607c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 2608090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 2609090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 2610153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 2611090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 2612090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 2613c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2614c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 2615c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 2616c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2617c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 2618c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 2619c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 2620c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 2621c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2622c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2623c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2624c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 2625c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 2626c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 2627c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 2628c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2629090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2630090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 2631090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 2632c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2633c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 2634077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 2635c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2636c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2637c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2638c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 2639077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 2640c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2641c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2642c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 2643c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2644c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 264539f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 2646c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2647c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2648c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 2649c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 2650c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2651a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 2652a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 2653c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian/// 'l' or 'L' , but not always. For typedefs, we need to use 2654a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2655a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 2656a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 2657a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 2658a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 2659c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 2660c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2661a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 2662c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian else 2663c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 2664c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2665a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 2666a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2667a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2668a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 2669a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 26707d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 2671153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 267282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 267382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 267482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 267582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 26765b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 26775b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 267882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 267982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 26808b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 2681153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 26828b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 26838b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 26848b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 26859a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 26868b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 26878b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 26888b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 26898b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 269082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 269182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 269282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 2693153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 2694090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 26956ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 2696e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 269743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD && FD->isBitField()) { 26988b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 269985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 270043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else { 270143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian char encoding; 270243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian switch (BT->getKind()) { 270343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian default: assert(0 && "Unhandled builtin type kind"); 270443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Void: encoding = 'v'; break; 270543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Bool: encoding = 'B'; break; 270643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_U: 270743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UChar: encoding = 'C'; break; 270843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UShort: encoding = 'S'; break; 270943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UInt: encoding = 'I'; break; 271072696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::ULong: 271172696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 271272696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 271372696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 27142df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 271543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULongLong: encoding = 'Q'; break; 271643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_S: 271743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::SChar: encoding = 'c'; break; 271843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Short: encoding = 's'; break; 271943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Int: encoding = 'i'; break; 272072696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::Long: 272172696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 272272696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 272372696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 272443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongLong: encoding = 'q'; break; 27252df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 272643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Float: encoding = 'f'; break; 272743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Double: encoding = 'd'; break; 272843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongDouble: encoding = 'd'; break; 272943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 273085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 273143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += encoding; 273243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2733c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson } else if (const ComplexType *CT = T->getAsComplexType()) { 2734c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 2735c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 2736c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 2737c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson } else if (T->isObjCQualifiedIdType()) { 2738090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(getObjCIdType(), S, 2739090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandPointedToStructures, 2740090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandStructures, FD); 2741090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 2742090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Note that we do extended encoding of protocol qualifer list 2743090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Only when doing ivar or property encoding. 2744d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff const ObjCObjectPointerType *QIDT = T->getAsObjCQualifiedIdType(); 2745090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2746d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff for (ObjCObjectPointerType::qual_iterator I = QIDT->qual_begin(), 2747446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff E = QIDT->qual_end(); I != E; ++I) { 2748090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2749446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff S += (*I)->getNameAsString(); 2750090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2751090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2752090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2753090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2754090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian return; 2755c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 2756c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 275785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2758a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2759a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2760a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2761a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2762a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 2763a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(T.getTypePtr())) { 2764a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2765a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2766a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2767a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2768a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2769a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 2770a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 2771a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian while (P->getAsPointerType()) 2772a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian P = P->getAsPointerType()->getPointeeType(); 2773a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 2774a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2775a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2776a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2777a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2778a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 2779a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 2780a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 2781a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 2782a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 2783a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 2784a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2785a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 2786a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 2787a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2788a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2789389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(PointeeTy)) { 2790c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 2791c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 2792c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian } 2793c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian else if (PointeeTy->isObjCInterfaceType()) { 2794bb99bdec7d3e704485baffae85938d24d35f0e0fFariborz Jahanian if (!EncodingProperty && 2795225dfd7d6b0ed14e6b7ad8dc121161b9f34ecfceFariborz Jahanian isa<TypedefType>(PointeeTy.getTypePtr())) { 27963e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // Another historical/compatibility reason. 27973e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // We encode the underlying type which comes out as 27983e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // {...}; 27993e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian S += '^'; 28003e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 28013e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian false, ExpandPointedToStructures, 28023e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian NULL); 28033e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian return; 28043e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian } 2805c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian S += '@'; 2806090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 280786f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian const ObjCInterfaceType *OIT = 280886f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian PointeeTy.getUnqualifiedType()->getAsObjCInterfaceType(); 2809090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCInterfaceDecl *OI = OIT->getDecl(); 2810adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2811adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += OI->getNameAsCString(); 2812446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff for (ObjCInterfaceType::qual_iterator I = OIT->qual_begin(), 2813446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff E = OIT->qual_end(); I != E; ++I) { 2814090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2815446ee4eb4fc4c705a59365252df7a5c253daafa1Steve Naroff S += (*I)->getNameAsString(); 2816090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2817090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2818adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2819adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian } 2820c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian return; 2821389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff } else if (isObjCClassStructType(PointeeTy)) { 28228baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 28238baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2824a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 28258baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 28268baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2827c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 282885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 282985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 283085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 283185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2832e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 283385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 283485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 283585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 283685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 283785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 283885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2839a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2840a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2841a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 2842d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 284343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2844c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 2845c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 2846c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 2847559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 2848559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 2849559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 2850559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 2851559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2852559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2853559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 2854559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 285585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2856559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2857559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 2858559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 2859559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 2860559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 2861559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 2862559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 286385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2864559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2865559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2866559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 2867559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 2868c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 2869c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 28706de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 287182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2872d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2873502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2874502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2875502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2876502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2877502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2878502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 28790d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 28807d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 288117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 288217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 288344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 288443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2885d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 288644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2887d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2888d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2889d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2890d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 289143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 289243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 289343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2894d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2895a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2896a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2897a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 289843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2899d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 29007d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 29016de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2902d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 29035e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 29048b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 29058b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 29068b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 29078b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2908485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 290921a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 291043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } else if (T->isObjCInterfaceType()) { 291143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 291243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 291343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 291443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 291543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 291643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 2917f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 291843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 2919f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 292043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 292143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 292243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 292343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 292443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 292543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 292643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 292743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 292843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 292943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 2930f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 293185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 293285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2933a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 2934ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 2935ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 2936ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 2937ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 2938ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 2939ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 2940ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 2941ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 2942ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 2943ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 2944ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 2945ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 2946ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 2947ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 2948ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 2949b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 2950b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 2951b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 2952b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2953b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 2954b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 2955b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2956319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCIdType(QualType T) 29577e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 2958319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCIdType = T; 2959319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2960319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2961319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2962319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2963319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2964319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 29657e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 29667e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 29677e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2968c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2969c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2970c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 29717e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2972c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2973c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2974c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 29757e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 29767e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 29777e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 2978319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCSelType(QualType T) 2979b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 2980319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 2981319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2982319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2983319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2984319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2985319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 2986b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2987b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 2988b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2989c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2990c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2991b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2992c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2993c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2994b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 2995b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 2996b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2997a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 2998390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 2999a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3000390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3001390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3002319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCClassType(QualType T) 30038baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 3004319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCClassType = T; 3005319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3006319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 3007319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 3008319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 3009319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 30108baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 30118baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 30128baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 30138baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 30148baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 30158baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 30168baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 30178baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 30188baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3019a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 3020a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 30212198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 30222198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 3023a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 30242198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 30252198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 30267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 30277532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 30287532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 30297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 30307532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 30317532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 30327532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 30337532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30347532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 30357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 30367532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 30377532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 30387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 30397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 30407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 30417532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 30437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 30447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 30467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 30477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 30487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 30497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(NNS->isDependent() && "Nested name specifier must be dependent"); 30507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30517532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 30527532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 30537532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30547532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 30557532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 30567532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 30577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 30597532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 30607532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30617532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 30627532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 30637532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 30647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 30657532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 30667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 30677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 30687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30697532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 30707532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 30717532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 30727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3073b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3074d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3075d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3076d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 3077b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 3078b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 3079b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3080b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3081b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3082b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3083b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3084b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3085b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3086b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3087b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3088b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3089b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3090b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 3091b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3092b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3093b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3094b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3095b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3096b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3097fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3098fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3099fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3100fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3101fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3102fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3103fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 310440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3105fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3106fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 3107fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 3108fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3109fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 3110b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 3111b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 3112b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 3113b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 3114b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 3115d461777e23204fe8c480302d8ff76f5847605da6Steve Naroff if (Ty->isObjCQualifiedIdType()) 3116b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 3117b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 31186ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 31196ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 31206ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 31216ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 31226ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 312316ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner const PointerType *PT = Ty->getAsPointerType(); 312416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (PT == 0) 3125b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 3126b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3127b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 312816ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (PT->getPointeeType()->isObjCInterfaceType() || 312916ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // If is has NSObject attribute, OK as well. 313016ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner isObjCNSObjectType(Ty)) 3131fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3132fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 313316ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // Check to see if this is 'id' or 'Class', both of which are typedefs for 313416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // pointer types. This looks for the typedef specifically, not for the 313516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // underlying type. Iteratively strip off typedefs so that we can handle 313616ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // typedefs of typedefs. 313716ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner while (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 313816ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (Ty.getUnqualifiedType() == getObjCIdType() || 313916ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner Ty.getUnqualifiedType() == getObjCClassType()) 314016ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner return true; 314116ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner 314216ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner Ty = TDT->getDecl()->getUnderlyingType(); 314316ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner } 314416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner 314516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner return false; 3146b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 3147b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 31484fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 31494fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 31504fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 31514fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz JahanianQualType::GCAttrTypes ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 3152b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttrs = QualType::GCNone; 31534fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 31544fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3155b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 31564fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 3157a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // (or pointers to them) be treated as though they were declared 3158a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 3159a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (GCAttrs == QualType::GCNone) { 3160a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (isObjCObjectPointerType(Ty)) 3161a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian GCAttrs = QualType::Strong; 3162a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 3163a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian return getObjCGCAttrKind(Ty->getAsPointerType()->getPointeeType()); 3164a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3165c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3166c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 31678df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (!Ty->isPointerType() && !isObjCObjectPointerType(Ty)) 3168c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian return QualType::GCNone; 31694fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3170b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 31714fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 31724fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 31736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 31746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 31756ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3176770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 31776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 31786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 31796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 31806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 31816ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 31826ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 318361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 31846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 31856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 31863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 31876ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 31886ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 31896ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 31903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 31913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 31926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 31936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 31946ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 31956ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 31966ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 31976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 31986ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 31996ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 32006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 32016ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 32026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 32036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 32046ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 32056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 32066ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 32076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 32086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 32096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 32106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 321191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // All LHS protocols must have a presence on the RHS. 321291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff assert(LHSP->qual_begin() != LHSP->qual_end() && "Empty LHS protocol list?"); 321391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 321491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(), 321591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPE = LHSP->qual_end(); 321691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 321791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 321891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 321991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 322091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 322191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(), 322291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSPE = RHSP->qual_end(); 322391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff !RHSImplementsProtocol && (RHSPI != RHSPE); RHSPI++) { 322491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) 322591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 322691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 322791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 322891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 322991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 323091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 323191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 323291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 32336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 32346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 3235389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 3236389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 3237389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *LHSPT = LHS->getAsPointerType(); 3238389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *RHSPT = RHS->getAsPointerType(); 3239389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 3240389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSPT || !RHSPT) 3241389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 3242389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 3243389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType lhptee = LHSPT->getPointeeType(); 3244389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType rhptee = RHSPT->getPointeeType(); 3245389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* LHSIface = lhptee->getAsObjCInterfaceType(); 3246389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* RHSIface = rhptee->getAsObjCInterfaceType(); 3247389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // ID acts sort of like void* for ObjC interfaces 3248389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (LHSIface && isObjCIdStructType(rhptee)) 3249389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 3250389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (RHSIface && isObjCIdStructType(lhptee)) 3251389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 3252389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSIface || !RHSIface) 3253389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 3254389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return canAssignObjCInterfaces(LHSIface, RHSIface) || 3255389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff canAssignObjCInterfaces(RHSIface, LHSIface); 3256389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 3257389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 3258ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 3259ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 3260ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 3261ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 32623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 32633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 32643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 32653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32663d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 32673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 32683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 326972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 327072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 32713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 32723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 32733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 32753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 32763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 327761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 327861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 327961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 328061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 32813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 3283465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 3284465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 32853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 32863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 32873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 32893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 32903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 32913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 32933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 32943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 32953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32967fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 32977fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 32987fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 32993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 33003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 33013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 33023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 33033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 33043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 33053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 33063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 330761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 330861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 330961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 331061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 33113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 33133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 33143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 33157fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 33163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 33193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 33203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 332172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 33223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 3323465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 33243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 33253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 33263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 33273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 33283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 33293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 33303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 33313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 33323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 33333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 33343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 33353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 33363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 33393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 33403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 33417fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 33427fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 33433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 33463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 334772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return getFunctionNoProtoType(retType); 33483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 33493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33503d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 335143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 335243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 335343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 33547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 33557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 33563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 33573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 33587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 33597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 33603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 3361c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 33623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 3363c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 33643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 33663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 33673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3368f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 33693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 33703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 33713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 33735a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Note that we handle extended qualifiers later, in the 33745a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // case for ExtQualType. 33755a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers()) 33763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 33773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3378852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 3379852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 3380f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 33811adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 33821adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 33831adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 33841adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 33854c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 338607d258756dc856c6987c394a0972884e6ed46765Eli Friedman // Strip off objc_gc attributes off the top level so they can be merged. 338707d258756dc856c6987c394a0972884e6ed46765Eli Friedman // This is a complete mess, but the attribute itself doesn't make much sense. 3388585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (RHSClass == Type::ExtQual) { 338907d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = RHSCan.getObjCGCAttr(); 339007d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 339186f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian QualType::GCAttrTypes GCLHSAttr = LHSCan.getObjCGCAttr(); 33928df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. 339386f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 339486f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 339586f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 339686f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCLHSAttr != GCAttr) || 339786f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCLHSAttr != GCAttr && 339886f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian LHSCan->isPointerType() && !isObjCObjectPointerType(LHSCan) && 339986f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian !isObjCIdStructType(LHSCan->getAsPointerType()->getPointeeType()))) 34008df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 34018df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian 340207d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS = QualType(cast<ExtQualType>(RHS.getDesugaredType())->getBaseType(), 340307d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS.getCVRQualifiers()); 340407d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 34058df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 34068df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 34078df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 34088df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 34098df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 34108df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 341107d258756dc856c6987c394a0972884e6ed46765Eli Friedman return Result; 341207d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3413585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3414585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (LHSClass == Type::ExtQual) { 341507d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = LHSCan.getObjCGCAttr(); 341607d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 34178df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian QualType::GCAttrTypes GCRHSAttr = RHSCan.getObjCGCAttr(); 34188df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. __strong 341986f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 342086f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 342186f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 342286f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCRHSAttr != GCAttr) || 342386f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCRHSAttr != GCAttr && 342486f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian RHSCan->isPointerType() && !isObjCObjectPointerType(RHSCan) && 342586f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian !isObjCIdStructType(RHSCan->getAsPointerType()->getPointeeType()))) 34268df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 342786f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian 342807d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS = QualType(cast<ExtQualType>(LHS.getDesugaredType())->getBaseType(), 342907d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS.getCVRQualifiers()); 343007d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 34318df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 34328df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 34338df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 34348df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 34358df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 34368df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 3437354e53da656237e25518b3fafa3bf84de6e6f57eEli Friedman return Result; 343807d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3439585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3440585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian 34414c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 3442a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 3443a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 3444a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 3445a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 3446a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 3447213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 3448213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 3449213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 3450ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 3451b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 3452b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 3453b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 34543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 34554e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 34564e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 34575fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 34585fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 3459c8d2e77288c07a69cabb755a4ab9feeb7b5a1287Fariborz Jahanian 3460d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff // 'id' and 'Class' act sort of like void* for ObjC interfaces 3461d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (LHSIface && (isObjCIdStructType(RHS) || isObjCClassStructType(RHS))) 34625fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 3463d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (RHSIface && (isObjCIdStructType(LHS) || isObjCClassStructType(LHS))) 34645fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return RHS; 34655fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 3466bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 3467bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 3468bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 3469bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 3470d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (isObjCIdStructType(pType) || isObjCClassStructType(pType)) 3471bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 3472bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 3473bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 3474bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 3475bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 3476bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 3477bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 3478bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3479bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3480bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 3481bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 3482bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 3483d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (isObjCIdStructType(pType) || isObjCClassStructType(pType)) 3484bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 3485bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 3486bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 3487bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 3488bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 3489bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 3490bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 3491bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3492bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 34931adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 34941adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 34953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 34963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 34973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 3498bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 34993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 35003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 35013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 3502bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 35031adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 35043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 3505ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 35063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 35074a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 35081adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 350972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 351072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 351172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 351272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 351372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 351472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 351572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 351672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 35177c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 35187c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 351972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 352072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 352172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 352272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 352372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 352472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 352572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 352672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 352772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 352872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 352972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 353072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 35311adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 35323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 35333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 35343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 35353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 35363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 35373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 353807d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 353961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 354007d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 354161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 35423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 35433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 3544c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 3545c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 3546c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 3547c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 3548c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 3549c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3550c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 3551c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3552c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 3553c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3554c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 3555c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 3556c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 35571adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 35583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 35593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 35603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 35613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 35623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 35633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 35643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 35653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 35663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 35673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 356861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 356961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 357061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 357161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 35723bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 35733bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 35743bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 35753bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 35763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 35773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 357861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 357961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 358061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 358161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 35823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 35833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 35843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 35853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 35863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 35873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 35883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 35893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 35903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 35913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 35923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 35933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 35943bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 35953bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 35967e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 35977e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 35983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 35991adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 36003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 360172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 360272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 36033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 3604389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(LHS) && isObjCClassStructType(RHS)) return LHS; 3605389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCClassStructType(LHS) && isObjCIdStructType(RHS)) return LHS; 36063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 36071adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 36083cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 36093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 361064cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 361164cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 361264cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 36133cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 36145a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 36153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 36163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 361761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 361861490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 36195fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 36205a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 36215a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 36225fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 36235fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 36245fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 36255fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 36265fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 36275fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 36283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 362961490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 3630d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 3631d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // FIXME: finish 3632bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 3633bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 36345a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 36355a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 36365a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 36375a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ExtQual: 36385a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: ExtQual types can be compatible even if they're not 36395a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // identical! 36405a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 36415a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // First attempt at an implementation, but I'm not really sure it's 36425a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // right... 36435a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#if 0 36445a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* LQual = cast<ExtQualType>(LHSCan); 36455a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* RQual = cast<ExtQualType>(RHSCan); 36465a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LQual->getAddressSpace() != RQual->getAddressSpace() || 36475a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LQual->getObjCGCAttr() != RQual->getObjCGCAttr()) 36485a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 36495a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman QualType LHSBase, RHSBase, ResultType, ResCanUnqual; 36505a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LHSBase = QualType(LQual->getBaseType(), 0); 36515a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman RHSBase = QualType(RQual->getBaseType(), 0); 36525a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = mergeTypes(LHSBase, RHSBase); 36535a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (ResultType.isNull()) return QualType(); 36545a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResCanUnqual = getCanonicalType(ResultType).getUnqualifiedType(); 36555a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getUnqualifiedType() == ResCanUnqual) 36565a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return LHS; 36575a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (RHSCan.getUnqualifiedType() == ResCanUnqual) 36585a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return RHS; 36595a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getAddrSpaceQualType(ResultType, LQual->getAddressSpace()); 36605a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getObjCGCQualType(ResultType, LQual->getObjCGCAttr()); 36615a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType.setCVRQualifiers(LHSCan.getCVRQualifiers()); 36625a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return ResultType; 36635a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#endif 36647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 36657532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 36667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 36677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 3668ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 366972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 367072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 3671ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 36727192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 36735426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 3674ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 3675ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 367688054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 3677ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 3678ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 3679ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 3680f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 3681f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 3682f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 3683f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 3684ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 3685ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3686ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3687ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 3688ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 3689ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 3690ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 3691ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 3692ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 3693ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 3694ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 3695ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 3696ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 3697ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 3698ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 3699ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 3700ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 3701ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 3702ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 3703ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 3704ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 37052df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 37062df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 3707ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 3708ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 3709ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 3710ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 3711ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3712ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 37132cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 37142cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 37152cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 371686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 371786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 371886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 371986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 372086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 372186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 372286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 372386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 372486df27bbdbb98c39ec2184695c0561209f91beddChris Lattnerstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 372586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 372686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 372786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 372886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 372986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 373086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 373186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 373286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 373386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 373486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 373586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 373686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 373786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 373886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 373986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 374086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 374186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 374286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 374386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 374486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 374586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 374686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 374786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 374886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 374986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 375086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 375186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 375286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 375386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 375486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 375586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 375686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 375786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 375886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 375986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 376086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 376186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 376286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 376386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 376486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 376586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 376686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 376786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 376886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 376986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 377086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 377186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 377286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 377386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 377486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 377586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 377686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 377786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 377886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 377986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 378086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 378186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 378286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 378386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 378486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 378586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 378686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 378786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 378886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 378986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 379086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 379186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 379286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 379386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 379486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 379586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 379686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 379786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 379886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 379986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 380086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 380186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 380286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 380386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 380486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 380586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 380686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 380786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 380886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 380986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 381086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 381186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 381286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 381386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 381486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 381586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 381686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 381786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 381886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 381986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 382086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 382186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 382286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 382386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 382486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 382586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 382686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 382786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 382886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 382986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 383086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 383186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 383286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 383386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 383486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 383586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 383686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 383786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 383886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 383986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 384086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 384186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 384286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 384386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 384486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 384586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 384686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'P': { 384786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner IdentifierInfo *II = &Context.Idents.get("FILE"); 384886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner DeclContext::lookup_result Lookup 384917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis = Context.getTranslationUnitDecl()->lookup(II); 385086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Lookup.first != Lookup.second && isa<TypeDecl>(*Lookup.first)) { 385186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getTypeDeclType(cast<TypeDecl>(*Lookup.first)); 385286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 385386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 385486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else { 385586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = ASTContext::GE_Missing_FILE; 385686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 385786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 385886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 385986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 386086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 386186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 386286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 386386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 386486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 386586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 386686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 386786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 386886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 386986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 387086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 387186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 387286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 387386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 387486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 387586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 387686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Type.getQualifiedType(QualType::Const); 387786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 387886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 387986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 388086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 388186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 388286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 388386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 388486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 388586df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 388686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 388786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 388886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 388986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 389086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 389186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 389286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 389386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 389486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 389586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 389686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 389786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 389886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 389986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 390086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 390186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 390286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 390386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 390486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 390586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 390686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 390786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 390886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 390986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 391086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 391186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 391286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 391386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 391486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 391586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 3916