ASTContext.cpp revision 50d62d1b4a98adbc83de8f8cd1379ea1c25656f7
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" 2019cc4abea06a9b49e0e16a50d335c064cd723572Anders Carlsson#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" 2729445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson#include "RecordLayoutBuilder.h" 2829445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3561710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 37e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 381b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 391b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner bool FreeMem, unsigned size_reserve) : 40ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 41782fa308a765aeac2acb39c4e697c937ec21185bMike Stump ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), jmp_bufDecl(0), 42782fa308a765aeac2acb39c4e697c937ec21185bMike Stump sigjmp_bufDecl(0), SourceMgr(SM), LangOpts(LOpts), 432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments(false), FreeMemory(FreeMem), Target(t), 442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 45e4f2142d00fa5fdb580c4e2413da91882d955381Chris Lattner BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 46e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 47e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 4814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 49e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 50e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 544b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 57b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 65b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 66b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 67b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 68b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 69b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 75b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 76ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 771ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 781ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 791ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNSEnd = NestedNameSpecifiers.end(); 80e7dcd782df0e1cc3a63e429a866098e69db39153Douglas Gregor NNS != NNSEnd; 811ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 821ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 83ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 84ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 85ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 86ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 87b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 902cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid 912cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 922cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 932cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 942cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 99dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 100dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) 0, 101dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 102dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 103dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 104dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 105c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 108dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 111dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 112dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 113dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 115dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 116dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 117dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 118dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 119dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 120dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 121dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1222cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1232cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1242cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1252cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1262cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 131f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Types.push_back((R = QualType(new (*this,8) BuiltinType(K),0)).getTypePtr()); 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 14315b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 16564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1662df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1672df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1682df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1692df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1703a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1713a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1723a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1733a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 17464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 175f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 176f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 177f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 178f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 179f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 180f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 181f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 182f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 183f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 184f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 1858e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 186898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 187898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 188898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 189898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 190898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 191898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 192898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 193898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 1948e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 195e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // Placeholder type for C++0x auto declarations whose real type has 196e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 197e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 198e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2038e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2047e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 20514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 206de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 207de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 208de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 209de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 210de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // Builtin types for 'id' and 'Class'. 211de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 212de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 21314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 214a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 21533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 21633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 21733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2186e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2196e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2206e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2237caa6825f42a0f7e97d6fc06233133c42b218e46Douglas GregorVarDecl *ASTContext::getInstantiatedFromStaticDataMember(VarDecl *Var) { 2247caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member"); 2257caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor llvm::DenseMap<VarDecl *, VarDecl *>::iterator Pos 2267caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor = InstantiatedFromStaticDataMember.find(Var); 2277caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Pos == InstantiatedFromStaticDataMember.end()) 2287caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return 0; 2297caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2307caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return Pos->second; 2317caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2327caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2337caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregorvoid 2347caa6825f42a0f7e97d6fc06233133c42b218e46Douglas GregorASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl) { 2357caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Inst->isStaticDataMember() && "Not a static data member"); 2367caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Tmpl->isStaticDataMember() && "Not a static data member"); 2377caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(!InstantiatedFromStaticDataMember[Inst] && 2387caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor "Already noted what static data member was instantiated from"); 2397caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor InstantiatedFromStaticDataMember[Inst] = Tmpl; 2407caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2417caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 2432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor class BeforeInTranslationUnit 2442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 2452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 2462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 2482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 2492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 2512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 2522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 2532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 2542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 2552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 2572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 2592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 2612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 2632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 2642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 2652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorstatic bool 2662e22253e03e175144aeb9d13350a12fd83f858beDouglas GregorisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 2672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 2682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *BufferStart 2692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 2702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 2712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 2722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 2742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 2772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 2782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 2802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 2832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 2842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 2862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// it has one. 2872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 2882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 2892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 2902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 2922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 2932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor llvm::DenseMap<const Decl *, std::string>::iterator Pos 2942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 2952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 2962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 2972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If we have an external AST source and have not yet loaded comments from 2992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 3002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 3012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 3022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 3032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 3052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 3062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 3072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 3092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If there are no comments anywhere, we won't find anything. 3122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 3132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 3162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 3172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 3182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 3192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 3222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 3232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = std::lower_bound(Comments.begin(), Comments.end(), 3242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 3252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 3262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 3282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 3292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DeclStartDecomp 3302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 3312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *FileBufferStart 3322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 3332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 3352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 3362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 3372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 3382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 3412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 3422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 3442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 3452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 3462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 3472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 3482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + 3492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getFileOffset(LastComment->getBegin()), 3502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 3512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 3522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 3562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 3582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 3602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 3642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 3652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 3662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 3692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 3702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 3732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 3742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned DeclStartLine 3752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 3762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 3772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 3792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 3812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 3822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 3832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 3862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 3872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 3882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned ExpectedLine 3892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 3902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 3912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 3922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 3932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 3942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 3952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 3962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 3982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 3992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 4052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 4102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 4112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 4122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 4172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExpectedLine 4182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 4192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 4222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 4232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 4242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 4252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 4272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 4282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 4292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 4302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 4322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 4332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 4372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + 4382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getFileOffset(LastComment->getBegin()), 4392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 4422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 443464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 444464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 445464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 446a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 447b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 448b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 449b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 450b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 451b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 452b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 453b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 454b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 455b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 456b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 457b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 458b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 459b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 460af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// getDeclAlign - Return a conservative estimate of the alignment of the 461af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 462af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 463b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 464dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 465dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 46640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 467dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 468dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 469af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 470af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 4716217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 4724cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 473f0930235ce58a91aa3b840bece9052f44d630536Anders Carlsson Align = Target.getPointerAlign(AS); 4744cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson } else if (!T->isIncompleteType() && !T->isFunctionType()) { 4754cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 476dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 477dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 478dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 479dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 480dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 481af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 482dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 483dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 484af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 485b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 486a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 487a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 488d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 4891d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 4905e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 4915e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 492a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 49372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 49472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 49518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 49672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 49772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 49818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 49972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 50072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 5015d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 5025d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 50318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 50418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 50518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 50618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 50718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 50872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 509fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 51018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 51118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 51218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 51318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 5147e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor case Type::ConstantArrayWithExpr: 5157e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor case Type::ConstantArrayWithoutExpr: 516fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 5171d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 518030d8846c7e520330007087e949f621989876e3aChris Lattner 51998be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 5209e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 521030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 522030d8846c7e520330007087e949f621989876e3aChris Lattner break; 5235c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 524213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 525030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 526030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 52798be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 5289e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 5294bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 5306fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 5316fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 5326fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 5336fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 534030d8846c7e520330007087e949f621989876e3aChris Lattner break; 535030d8846c7e520330007087e949f621989876e3aChris Lattner } 5365d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 5379e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 538a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 539692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 540d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 54118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 54218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 54318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 54418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 54518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 5466f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 5479e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 5489e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 5496f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 550692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 551692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 552692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 5536f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 5549e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 5559e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 5566f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 55764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 55864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 55964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 56064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 561f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 562f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 563f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 564f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 565f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 566f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 567f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 568f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 569692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 5706f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 5719e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 5729e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 5736f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 574692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 5756f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 5769e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 5779e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 5786f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 579692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 5806f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 5819e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 5829e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 5836f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 584692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 5856f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 5869e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 5879e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 5886f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 589ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 590ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 591ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 592ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 593ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 5946f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 5959e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 5969e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 5976f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5986f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 5995426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 6005426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 6016f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6026f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 6039e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 6049e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 6056f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6066e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 6076e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 6086e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 6091590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 610a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 611bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 612f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 613f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 614f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 615f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 616736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 617f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 618f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 619f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian case Type::ExtQual: 62098be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 62198be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 622f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian return getTypeInfo(QualType(cast<ExtQualType>(T)->getBaseType(), 0)); 623d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 6245426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 625f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 6266f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 627485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 628485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 629485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 630485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 631485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 632485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 633f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 634f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 6355426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 636f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 637f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 638f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 6397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 6407c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 6417ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 6425d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 6436f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 6446f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 645bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 646f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 6471cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // FIXME: This is ABI dependent. We use the Itanium C++ ABI. 6481cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // http://www.codesourcery.com/public/cxx-abi/abi.html#member-pointers 6491cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // If we ever want to support other ABIs this needs to be abstracted. 6501cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson 651f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 6521cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson std::pair<uint64_t, unsigned> PtrDiffInfo = 6531cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 6541cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 655f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 656f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 6571cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 6581cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 659f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 6605d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 6615d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 6625d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 6635d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 66498be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 6659e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 6665d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 6675d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 6685d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 66944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 6701d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 67144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 67244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 67344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 67444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 67544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 67672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 67772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 6781d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 6791d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 6801d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 6818389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 6828389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 6838389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 6848389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 6858389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 6861d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 6877176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 6887176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 6891d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 6907176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 6917176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 6927176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 693dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 694a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 6957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 69618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 69718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 69840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 69918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = Aligned->getAlignment(); 70018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 70118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 70218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 7037532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 7047176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 70518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 70618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 70718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 70818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 70918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 71018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 71118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 71218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 713395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 714395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 715395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 716395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 71718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 71818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 71918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 72018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 72118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(getCanonicalType(T) != T && 72218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 72318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 72418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 72518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 72618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 72718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 728d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 729464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 7309e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 731a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 732a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 73334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 73434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 73534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 73634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 73734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 73834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 7391eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 7401eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 7411eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (const ComplexType* CT = T->getAsComplexType()) 7421eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 7431eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 7441eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 7451eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 7461eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 74734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 74834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 74934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 750a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 751a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 752a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 753a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 754a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 755f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 756a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 757a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 758a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 759a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 760a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 761a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 762a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 763a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 764a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 765a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 766a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 767a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 7688e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 7698e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 7708e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 7718e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 7728e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 7738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 7748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 7758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 7768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 7778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 7788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 7798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 7808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 7818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 7829820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 7839820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 78417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 78517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 7869820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 7879820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 7889820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 7899820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 7909820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 7919820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 7929820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 7939820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 7949820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 7959820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 7969820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 7979820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 7989820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 7999820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 80017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 80117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8029820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8039820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8049820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8059820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 8069820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 8079820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8089820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8099820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 8109820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 8119820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8129820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8139820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8148e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 8158e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 81617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 81717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8188e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8198e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8208e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8218e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 8228e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8238e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8248e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 8258e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8268e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8278e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8288e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) 8298e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian{ 8308e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 83117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 83217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8338e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8348e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8358e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8368e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 8378e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 8388e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8398e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8408e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 8418e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 8428e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8438e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8448e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8458e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8468a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 8478a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 8488a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 8498a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 8508a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 8518a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 8528a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 8538a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8548a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 8558a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 8568a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 8578a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 8588a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 8598a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 8608a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 8618a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8628a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 8638a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 8648a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 8658a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 8668a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 8678a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 8688a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8698a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 8708a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 8718a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 8728a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 8738a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 8748a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8758a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 876b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 877b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 878b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 879b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 880b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 88144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 882b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 883b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 884532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 885532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 88644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 887d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCContainerDecl *Key = 888d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 889d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 890d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 89144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 892453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 893453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 89429445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson unsigned FieldCount = D->ivar_size(); 8958e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 8968e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian FieldCount += SynthCount; 897d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 898453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 899453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 900453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 9018e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 902453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 903453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 904453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 90529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson const ASTRecordLayout *NewEntry = 90629445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 90729445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 90829445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 90944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 91044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 91144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 912b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 913b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 914b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 915b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 916b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 917b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 918b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 919b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 920b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 921b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 92288a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 923464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 924464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 92598be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 9264b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 9274b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 9284bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 929464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 930ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 931ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 932ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 933464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 9344bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 93529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson const ASTRecordLayout *NewEntry = 93629445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 937ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 93829445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 9395d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 940464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 941464175bba1318bef7905122e9fda20cff926df78Chris Lattner 942a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 943a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 944a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 945a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 946f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 947f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 948f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 949f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 950b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 951b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 952b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 953b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 954b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr = QualType::GCNone; 955b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 956b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 957b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 958b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 959b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 960b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getAddressSpace() == 0 && 961b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 962b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttr = EQT->getObjCGCAttr(); 963b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 964b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 965f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 966b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Check if we've already instantiated this type. 967ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 9682455636163fdd18581d7fdae816433f886d88213Mike Stump ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 969ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 970f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 971b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 972b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 973ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 974ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 975ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 976b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (!TypeNode->isCanonical()) { 977f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Canonical = getAddrSpaceQualType(CanT, AddressSpace); 978ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 979b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 980f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 981f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 982ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 983b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 984b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 985f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 986ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 987b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 988ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 989ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 990b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 991b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr) { 992d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 993b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 994d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 995d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 9964027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 9976217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 99858f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 9994027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 10004027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 10014027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10024027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 1003b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 1004b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 1005b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1006b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 1007b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned AddressSpace = 0; 1008b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 1009b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 10102455636163fdd18581d7fdae816433f886d88213Mike Stump // If this type already has an ObjCGC specified, it cannot get 1011b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 1012b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getObjCGCAttr() == QualType::GCNone && 10132455636163fdd18581d7fdae816433f886d88213Mike Stump "Type cannot have multiple ObjCGCs!"); 1014b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner AddressSpace = EQT->getAddressSpace(); 1015b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 1016b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 1017d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 1018d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check if we've already instantiated an gc qual'd type of this type. 1019d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian llvm::FoldingSetNodeID ID; 10202455636163fdd18581d7fdae816433f886d88213Mike Stump ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 1021d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian void *InsertPos = 0; 1022d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 1023b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 1024d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 1025d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // If the base type isn't canonical, this won't be a canonical type either, 1026d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // so fill in the canonical type field. 10275a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: Isn't this also not canonical if the base type is a array 10285a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // or pointer type? I can't find any documentation for objc_gc, though... 1029d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType Canonical; 1030d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (!T->isCanonical()) { 1031b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Canonical = getObjCGCQualType(CanT, GCAttr); 1032d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 1033b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 1034d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 1035d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1036d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 1037b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 1038b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 1039d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 1040d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Types.push_back(New); 1041b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 1042d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1043a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 10442455636163fdd18581d7fdae816433f886d88213Mike StumpQualType ASTContext::getNoReturnType(QualType T) { 10456dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump QualifierSet qs; 10466dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump qs.strip(T); 10472455636163fdd18581d7fdae816433f886d88213Mike Stump if (T->isPointerType()) { 10486217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 10492455636163fdd18581d7fdae816433f886d88213Mike Stump QualType ResultType = getNoReturnType(Pointee); 10506dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getPointerType(ResultType); 10516dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType.setCVRQualifiers(T.getCVRQualifiers()); 10526dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump return qs.apply(ResultType, *this); 10532455636163fdd18581d7fdae816433f886d88213Mike Stump } 10542455636163fdd18581d7fdae816433f886d88213Mike Stump if (T->isBlockPointerType()) { 10556217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<BlockPointerType>()->getPointeeType(); 10562455636163fdd18581d7fdae816433f886d88213Mike Stump QualType ResultType = getNoReturnType(Pointee); 10576dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getBlockPointerType(ResultType); 10586dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType.setCVRQualifiers(T.getCVRQualifiers()); 10596dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump return qs.apply(ResultType, *this); 10602455636163fdd18581d7fdae816433f886d88213Mike Stump } 10612455636163fdd18581d7fdae816433f886d88213Mike Stump if (!T->isFunctionType()) 10622455636163fdd18581d7fdae816433f886d88213Mike Stump assert(0 && "can't noreturn qualify non-pointer to function or block type"); 10632455636163fdd18581d7fdae816433f886d88213Mike Stump 1064e24aea225ec87b935ede6c21c964dd47a4afb810Mike Stump if (const FunctionNoProtoType *F = T->getAsFunctionNoProtoType()) { 10652455636163fdd18581d7fdae816433f886d88213Mike Stump return getFunctionNoProtoType(F->getResultType(), true); 10662455636163fdd18581d7fdae816433f886d88213Mike Stump } 1067e24aea225ec87b935ede6c21c964dd47a4afb810Mike Stump const FunctionProtoType *F = T->getAsFunctionProtoType(); 10682455636163fdd18581d7fdae816433f886d88213Mike Stump return getFunctionType(F->getResultType(), F->arg_type_begin(), 10692455636163fdd18581d7fdae816433f886d88213Mike Stump F->getNumArgs(), F->isVariadic(), F->getTypeQuals(), 10702455636163fdd18581d7fdae816433f886d88213Mike Stump F->hasExceptionSpec(), F->hasAnyExceptionSpec(), 10712455636163fdd18581d7fdae816433f886d88213Mike Stump F->getNumExceptions(), F->exception_begin(), true); 10722455636163fdd18581d7fdae816433f886d88213Mike Stump} 10732455636163fdd18581d7fdae816433f886d88213Mike Stump 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 10755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 10765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 10785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 10815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1090f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1094f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1096f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1102f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 1103f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 1104f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 1105f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 1106f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 1107f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 1108f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 1109f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 11105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1127f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1131f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1133f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11395618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 11405618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 11415618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1142296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1143296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 11445618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 11455618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 11465618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 11475618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 11485618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 11495618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 11505618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 11515618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 11525618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 1153296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 11545618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 11555618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 11565618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 11575618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 11585618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 11595618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 11605618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 11615618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1162f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11635618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 1164f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 11655618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 11665618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 11675618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 11685618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 11695618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 11707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 11717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 11727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 11807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 11827c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 11877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 11887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 11897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 11907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 11917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 11927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 11947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 11957c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *New = new (*this,8) LValueReferenceType(T, Canonical); 11967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 11977c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 11987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 11997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 12007c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 12027c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 12037c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 12047c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 12057c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 12067c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 12077c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 12087c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12097c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 12107c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 12117c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12127c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 12137c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12147c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 12157c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 12167c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 12177c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 12187c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 12197c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12217c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 12227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1223f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12267c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *New = new (*this,8) RValueReferenceType(T, Canonical); 12275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12287c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 12295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1232f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1233f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 1234f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 1235f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 1236f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1237f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1238f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1239f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1240f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1241f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1242f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1243f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1244f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1245f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1246f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1247f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1248f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1249f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1250f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1251f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1252f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1253f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1254f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1255f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1256f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1257f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 1258f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1259f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1260f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1261f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1262f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1263fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 1264fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 1265fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 126638aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1267c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1268c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1269587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman assert((EltTy->isDependentType() || EltTy->isConstantSizeType()) && 1270587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1271587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 127238aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 127338aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 127438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 127538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 127638aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner 12775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 12780be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12817192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 12827192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 12845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 1289f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1290c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 12915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12927192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 12937192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1294f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1297566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 1298f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 12997192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13047e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// getConstantArrayWithExprType - Return a reference to the type for 13057e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// an array of the specified element type. 13067e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType 13077e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorASTContext::getConstantArrayWithExprType(QualType EltTy, 13087e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &ArySizeIn, 13097e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *ArySizeExpr, 13107e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier ASM, 13117e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 13127e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 13137e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Convert the array size into a canonical width matching the pointer 13147e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // size for the target. 13157e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor llvm::APInt ArySize(ArySizeIn); 13167e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13177e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 13187e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Compute the canonical ConstantArrayType. 13197e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor QualType Canonical = getConstantArrayType(getCanonicalType(EltTy), 13207e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 13217e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Since we don't unique expressions, it isn't possible to unique VLA's 13227e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // that have an expression provided for their size. 13237e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayWithExprType *New = 13247e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)ConstantArrayWithExprType(EltTy, Canonical, 13257e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ArySizeExpr, 13267e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ASM, EltTypeQuals, Brackets); 13277e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Types.push_back(New); 13287e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return QualType(New, 0); 13297e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor} 13307e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 13317e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// getConstantArrayWithoutExprType - Return a reference to the type for 13327e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// an array of the specified element type. 13337e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType 13347e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorASTContext::getConstantArrayWithoutExprType(QualType EltTy, 13357e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &ArySizeIn, 13367e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier ASM, 13377e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals) { 13387e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Convert the array size into a canonical width matching the pointer 13397e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // size for the target. 13407e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor llvm::APInt ArySize(ArySizeIn); 13417e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13427e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 13437e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Compute the canonical ConstantArrayType. 13447e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor QualType Canonical = getConstantArrayType(getCanonicalType(EltTy), 13457e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 13467e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayWithoutExprType *New = 13477e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)ConstantArrayWithoutExprType(EltTy, Canonical, 13487e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 13497e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Types.push_back(New); 13507e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return QualType(New, 0); 13517e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor} 13527e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 1353bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1354bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 13557e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 13567e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1357c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 13587e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 13597e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1360c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1361c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1362c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1363566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 13647e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)VariableArrayType(EltTy, QualType(), 13657e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor NumElts, ASM, EltTypeQuals, Brackets); 1366c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1367c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1368c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1369c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1370c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1371c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1372898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1373898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 137404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 13757e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 13767e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1377898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 13787e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 13797e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1380898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1381898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1382898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 138304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor llvm::FoldingSetNodeID ID; 138404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 138504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor EltTypeQuals, NumElts); 1386898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 138704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 138804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *Canon 138904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 139004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 139104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 139204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 139304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 139404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor New = new (*this,8) DependentSizedArrayType(*this, EltTy, 139504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType(Canon, 0), 139604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor NumElts, ASM, EltTypeQuals, 139704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor Brackets); 139804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 139904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 140004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 140104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor New = new (*this,8) DependentSizedArrayType(*this, EltTy, QualType(), 140204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor NumElts, ASM, EltTypeQuals, 140304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor Brackets); 140404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 140504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 140604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 140704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 140804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 140904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor New = new (*this,8) DependentSizedArrayType(*this, EltTy, Canon, 141004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor NumElts, ASM, EltTypeQuals, 141104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor Brackets); 141204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 141304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 141404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor 1415898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1416898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1417898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1418898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1419c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1420c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1421c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1422c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 14230be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1424c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1425c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 1426c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 1427c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1428c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1429c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1430c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1431c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1432c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1433c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1434c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1435f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 14362bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1437c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1438c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1439c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1440c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1441f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14422bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1443c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 14447e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor IncompleteArrayType *New 14457e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor = new (*this,8) IncompleteArrayType(EltTy, Canonical, 14467e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ASM, EltTypeQuals); 1447c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1448c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1449c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1450c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1451fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1452fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 145373322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 145473322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 145573322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 14565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 14575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1458f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 145973322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 14605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 14625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 146373322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 14645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 14655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 14665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 14675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 14695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 14715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1472f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 14735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 14755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1476f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1478f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 14795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 14815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1484213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 148573322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1486213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 148773322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 148873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1489f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1490213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 149173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 149273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 149373322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1494213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 149573322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 149673322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 149773322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 149873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 149973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 150073322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 150173322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 150273322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1503213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 150473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 150573322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 150673322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1507f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 150873322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1509f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 151073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 151173322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 151273322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 151373322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 151473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 15159cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas GregorQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 15169cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 15179cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 15182ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 15192ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 15202ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 15212ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor 15222ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 15232ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 15242ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 15252ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 15262ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 15272ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 15282ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 15292ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor New = new (*this,8) DependentSizedExtVectorType(*this, vecType, 15302ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType(Canon, 0), 15312ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr, AttrLoc); 15322ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 15332ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 15342ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 15352ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor New = new (*this,8) DependentSizedExtVectorType(*this, vecType, 15362ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType(), SizeExpr, 15372ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor AttrLoc); 15382ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 15392ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 15402ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 15412ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 15422ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor New = new (*this,8) DependentSizedExtVectorType(*this, vecType, Canon, 15432ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr, AttrLoc); 15442ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 15452ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 15462ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor 15479cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 15489cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 15499cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 15509cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 155172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 15525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 15532455636163fdd18581d7fdae816433f886d88213Mike StumpQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, bool NoReturn) { 15545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 15555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 15565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 15572455636163fdd18581d7fdae816433f886d88213Mike Stump FunctionNoProtoType::Profile(ID, ResultTy, NoReturn); 15585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 156072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionNoProtoType *FT = 156172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 15625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 15635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 15655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 15662455636163fdd18581d7fdae816433f886d88213Mike Stump Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy), NoReturn); 15675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 156972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 157072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1571f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15742455636163fdd18581d7fdae816433f886d88213Mike Stump FunctionNoProtoType *New 15752455636163fdd18581d7fdae816433f886d88213Mike Stump = new (*this,8) FunctionNoProtoType(ResultTy, Canonical, NoReturn); 15765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 157772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 15825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 158361710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1584971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1585465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1586465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 15872455636163fdd18581d7fdae816433f886d88213Mike Stump const QualType *ExArray, bool NoReturn) { 15885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 15895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 15905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 159172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1592465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 15932455636163fdd18581d7fdae816433f886d88213Mike Stump NumExs, ExArray, NoReturn); 15945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 159672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionProtoType *FTP = 159772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 15985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1599465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1600465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 16015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 1602465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl if (hasExceptionSpec) 1603465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl isCanonical = false; 16045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 16055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 16065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 16075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1609465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 16105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 16115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 16125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 16135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 16145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1615f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 1616465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1617f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1618beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 16192455636163fdd18581d7fdae816433f886d88213Mike Stump isVariadic, TypeQuals, NoReturn); 1620465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 16215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 162272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 162372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1624f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1626465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 162772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1628465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1629465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 163072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *FTP = 1631465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1632465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 1633465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs*sizeof(QualType), 8); 163472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1635465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 16362455636163fdd18581d7fdae816433f886d88213Mike Stump ExArray, NumExs, Canonical, NoReturn); 16375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 163872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 16405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16422ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 16432ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 16444b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 16451e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 16462ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 16472ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 16481e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 16492ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1650fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1651fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 16529fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (ObjCInterfaceDecl *ObjCInterface 16539fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump = dyn_cast<ObjCInterfaceDecl>(Decl)) 16542ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 165549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1656c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1657566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1658566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1659f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1660f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 16619fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1662566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1663566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1664f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1665f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 16669fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 16672ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 166849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 16694b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 167049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 16712ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 16722ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 16735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 16745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 16755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 16765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 16775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1678f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 167972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Decl->TypeForDecl = new(*this,8) TypedefType(Type::Typedef, Decl, Canonical); 16805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 16815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 16825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1684fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 168576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// parameter or parameter pack with the given depth, index, and (optionally) 168676e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 1687fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas GregorQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 168876e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1689fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1690fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 169176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1692fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 1693fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType *TypeParm 1694fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1695fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1696fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1697fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1698fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 169976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 170076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 170176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack, 170276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson Name, Canon); 170376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 170476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack); 1705fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1706fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1707fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1708fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1709fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1710fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1711fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 171255f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorQualType 17137532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 17147532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 17157532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 17167532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 1717b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 1718b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 1719b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor else { 1720b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor // Build the canonical template specialization type. 17211275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateName CanonTemplate = getCanonicalTemplateName(Template); 17221275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::SmallVector<TemplateArgument, 4> CanonArgs; 17231275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.reserve(NumArgs); 17241275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (unsigned I = 0; I != NumArgs; ++I) 17251275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 17261275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 17271275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Determine whether this canonical template specialization type already 17281275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // exists. 17291275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::FoldingSetNodeID ID; 17301275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType::Profile(ID, CanonTemplate, 1731828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor CanonArgs.data(), NumArgs, *this); 17321275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 17331275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *InsertPos = 0; 17341275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 17351275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 17361275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 17371275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor if (!Spec) { 17381275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate a new canonical template specialization type. 17391275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *Mem = Allocate((sizeof(TemplateSpecializationType) + 17401275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor sizeof(TemplateArgument) * NumArgs), 17411275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 8); 1742828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, 17431275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.data(), NumArgs, 1744b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon); 17451275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Types.push_back(Spec); 17461275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 17471275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 17481275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 1749b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (Canon.isNull()) 1750b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = QualType(Spec, 0); 17511275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(Canon->isDependentType() && 17521275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor "Non-dependent template-id type must have a canonical type"); 1753b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor } 1754fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 17551275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 17561275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 17571275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 17587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *Mem = Allocate((sizeof(TemplateSpecializationType) + 175940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 176040808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 8); 17611275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 1762828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor = new (Mem) TemplateSpecializationType(*this, Template, Args, NumArgs, 1763828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 17641275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 176555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 176655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 176755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 176855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1769e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas GregorQualType 1770ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1771e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1772e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1773ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1774e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1775e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 1776e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameType *T 1777e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1778e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1779e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1780e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1781ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, 1782ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1783e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1784e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1785e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1786e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1787e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1788d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1789d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1790d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1791d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1792d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1793d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1794d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1795d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1796d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1797d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1798d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1799d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1800d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1801d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1802d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 1803d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType *T 1804d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1805d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1806d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1807d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1808d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1809d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1810d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 1811d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1812d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1813d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 18141734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorQualType 18151734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorASTContext::getTypenameType(NestedNameSpecifier *NNS, 18161734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 18171734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 18181734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 18191734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18201734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 18211734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 18221734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 18231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 18241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 18251734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = CanonType->getAsTemplateSpecializationType(); 18261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 18271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 18281734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 18291734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18301734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18321734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 18331734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 18341734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18351734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 18361734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType *T 18371734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 18381734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 18391734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 18401734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18411734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 18421734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 18431734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 18441734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 18451734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 18461734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 184788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 184888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 184988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 185088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 18512e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 185288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 185388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 185488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 185588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 185688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 185788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 185888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 185988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 186088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 186188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 186288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 186388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 186488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 186588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1866d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 1867d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 186814108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 1869d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCProtocolDecl **Protocols, 1870d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 1871d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // Sort the protocol list alphabetically to canonicalize it. 1872d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (NumProtocols) 1873d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff SortAndUniqueProtocols(Protocols, NumProtocols); 1874d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1875d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 187614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 1877d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1878d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 1879d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 1880d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1881d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QT, 0); 1882d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1883d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // No Match; 1884d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerType *QType = 188514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff new (*this,8) ObjCObjectPointerType(InterfaceT, Protocols, NumProtocols); 1886d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1887d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 1888d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 1889d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 1890d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 189188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1892c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 1893c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 1894c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 1895a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 1896c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (NumProtocols) 1897c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff // Sort the protocol list alphabetically to canonicalize it. 1898c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff SortAndUniqueProtocols(Protocols, NumProtocols); 189988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 19004b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1901c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 19024b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 19034b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1904c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 1905c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 19064b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 19074b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 19084b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1909c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType *QType = 1910c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff new (*this,8) ObjCInterfaceType(const_cast<ObjCInterfaceDecl*>(Decl), 1911c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff Protocols, NumProtocols); 19124b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1913c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.InsertNode(QType, InsertPos); 19144b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 19154b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 19164b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 191772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 191872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 19199752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 19209752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 19219752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 192272564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 1923dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 1924b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 1925b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 1926b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 1927b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor 1928b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 1929b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 1930b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 1931b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 1932b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 1933b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 1934b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = new (*this, 8) TypeOfExprType(tofExpr, 1935b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 1936b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 1937b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 1938b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 1939b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor Canon = new (*this, 8) DependentTypeOfExprType(*this, tofExpr); 1940b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 1941b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 1942b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 1943b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 1944dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 1945dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor toe = new (*this,8) TypeOfExprType(tofExpr, Canonical); 1946dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 19479752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 19489752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1949d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1950d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 19519752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 19529752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 19539752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 19549752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 19559752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1956d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1957f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1958f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 19599752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 19609752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1961d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1962d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 196360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 196460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 196560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 1966a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 1967a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 1968a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson 196960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 197060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 197160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 197260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 197360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 197460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 197560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 197660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 197760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 197860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 197960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 198060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 198160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 198260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 198360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 198460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 198560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 198660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 198760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 198860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 198960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 199060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 199160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 199260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 199360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 199460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 1995395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 1996395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 1997395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 1998395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// an issue. This doesn't effect the type checker, since it operates 1999395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2000395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2001dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 20029d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 20039d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 20049d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 20059d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor 20069d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 20079d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 20089d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 20099d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 20109d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 20119d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 20129d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = new (*this, 8) DecltypeType(e, DependentTy, 20139d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 20149d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 20159d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 20169d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 20179d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor Canon = new (*this, 8) DependentDecltypeType(*this, e); 20189d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 20199d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 20209d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 20219d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2022dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 2023563a03b1338d31c2462def43253a722bc885d384Anders Carlsson dt = new (*this, 8) DecltypeType(e, T, getCanonicalType(T)); 2024dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2025395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2026395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2027395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2028395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 20295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 20305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 20315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 2032d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 20332ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 20345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 20355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 20375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 20385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 20395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 2040b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 20415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 20425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 204364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 204464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 204564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 204664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 204764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 204864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 204964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 205064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 205164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 205264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 205364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 205464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 205564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 205664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 20578b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 20588b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 20598b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2060b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 20618b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 20628b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2063e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2064e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2065e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2066e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 206777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 206877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 206977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 207077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 207177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 207277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 207350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 207477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 2075c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2076c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 2077c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 207850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor if (TypeQuals == 0) 207950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2080c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2081c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 2082c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 2083c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2084c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 208550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType.getQualifiedType(TypeQuals)); 2086c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2087c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2088c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 2089c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 2090c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 2091c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2092c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 209350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 209450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 209550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 209650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getIndexTypeQualifier())); 2097c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 209850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 209950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 210050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor IAT->getIndexTypeQualifier())); 2101c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 210350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 210450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 210550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeExpr(), 210650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 210750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getIndexTypeQualifier(), 210850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getBracketsRange())); 2109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2110c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 211150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 211250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeExpr(), 211350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 211450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getIndexTypeQualifier(), 211550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2116c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2117c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 211825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 211925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 212025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 212125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 212297fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 212325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 2124d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor // If this template name refers to a set of overloaded function templates, 2125d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor /// the canonical template name merely stores the set of function templates. 21266ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (OverloadedFunctionDecl *Ovl = Name.getAsOverloadedFunctionDecl()) { 21276ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor OverloadedFunctionDecl *CanonOvl = 0; 21286ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor for (OverloadedFunctionDecl::function_iterator F = Ovl->function_begin(), 21296ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor FEnd = Ovl->function_end(); 21306ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor F != FEnd; ++F) { 21316ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor Decl *Canon = F->get()->getCanonicalDecl(); 21326ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (CanonOvl || Canon != F->get()) { 21336ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (!CanonOvl) 21346ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor CanonOvl = OverloadedFunctionDecl::Create(*this, 21356ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor Ovl->getDeclContext(), 21366ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor Ovl->getDeclName()); 21376ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor 21386ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor CanonOvl->addOverload( 21396ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor AnyFunctionDecl::getFromNamedDecl(cast<NamedDecl>(Canon))); 21406ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 21416ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 21426ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor 21436ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor return TemplateName(CanonOvl? CanonOvl : Ovl); 21446ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 2145d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 214625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 214725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 214825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 214925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 215025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 21511275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorTemplateArgument 21521275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 21531275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 21541275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 21551275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 21561275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 21571275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 21581275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Build canonical expression? 21591275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 21601275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 21611275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 21621275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 21631275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Arg.getAsDecl()->getCanonicalDecl()); 21641275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 21651275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 21661275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 21671275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor *Arg.getAsIntegral(), 21681275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 21691275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 21701275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 21711275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 21721275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getAsType())); 21731275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 21741275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 21751275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 21761275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 21771275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 21781275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 21791275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 21801275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 21811275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 21821275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 21831275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 21841275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 21851275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 21861275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 21871275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 21881275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 21891275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 21901275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 21911275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 21921275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 21931275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2194d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2195d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 2196d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (!NNS) 2197d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2198d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2199d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2200d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2201d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 2202d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 2203d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2204d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2205d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2206d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2207d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2208d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2209d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2210d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2211d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2212d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2213d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 2214d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *Prefix = 0; 2215d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2216d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: This isn't the right check! 2217d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T->isDependentType()) 2218d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Prefix = getCanonicalNestedNameSpecifier(NNS->getPrefix()); 2219d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2220d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, Prefix, 2221d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2222d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2223d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2224d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2225d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2226d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2227d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2228d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2229d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2230d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2231d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2232d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2233d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2234c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2235c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2236c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2237c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 2238c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2239c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2240c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2241c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2242c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2243c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 2244c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 2245c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2246f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Make sure to look through type qualifiers (like ExtQuals) for the negative 2247c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 2248c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 2249c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 2250c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 2251c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2252c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 2253c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2254c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 2255c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2256c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2257c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 225850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 2259c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 2260c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 2261c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 2262c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2263f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Rip through ExtQualType's and typedefs to get to a concrete type. 2264c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 2265f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(Ty)) { 2266f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian AddrSpace = EXTQT->getAddressSpace(); 2267f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Ty = EXTQT->getBaseType(); 2268c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 2269c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 2270c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 2271c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 2272c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 2273c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 2274c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2275c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2276c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2277c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2278c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 2279c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 2280c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 2281c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2282c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2283c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2284c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2285c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 2286c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 2287c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 2288f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian NewEltTy = getAddrSpaceQualType(NewEltTy, AddrSpace); 2289c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 2290c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2291c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2292c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2293c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 2294c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 2295c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2296c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2297c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 22987e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor IAT->getIndexTypeQualifier())); 2299898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2300898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 2301898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2302898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 2303898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 2304898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 2305898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 23067e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getIndexTypeQualifier(), 23077e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 2308c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2309c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 23107e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 23117e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getSizeExpr(), 2312c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 23137e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getIndexTypeQualifier(), 23147e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 231577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 231677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 231777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2318e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2319e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2320e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2321e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2322e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2323e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2324e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2325c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2326c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2327c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2328c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2329c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2330c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 2331e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2332c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2333e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2334e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 2335c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 2336e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2337e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 23385e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 23395e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QualifierSet qualifiers; 23405e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 23415e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor const Type *UT = qualifiers.strip(QT); 23425e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 23435e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 23446dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump } else { 23455e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor return qualifiers.apply(QT, *this); 23465e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 23475e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 23485e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 23495e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2350d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 23516183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 23526183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 23536183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 23546183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 23556183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 23566183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 23576183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 23586183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 23595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 23605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2361a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2362ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 23635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2364a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2365d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 2366ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 2367a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 23685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 23695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 23705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 23715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2374716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 2375716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 2376716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2377716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 23781361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 23791361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 23801361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 23811361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 23821361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2383716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2384f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2385f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2386f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2387f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2388f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 23891361b11066239ea15764a2a844405352d87296b3Chris Lattner 23901361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 23911361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 23921361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 23931361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 23941361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 23951361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 23965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 24007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 24017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 24027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 2403a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2404a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2405a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 2406a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2407a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2408fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2409a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2410fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2411fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 24125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 24135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2414f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2415f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2416f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2417f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2418f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 2419f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2420f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 2421f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2422a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2423a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2424a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2425f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2426f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2427f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2428f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2429f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2430f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2431f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 2432f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 2433f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 24341b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 2435f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 2436f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2437f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 24387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 24397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2440f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 24417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 24427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 24437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 24447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2445f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 24467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 24477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2448f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 24497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 24507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2451f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 24527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 24537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2454f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 24557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 24567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2457f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 24582df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 24592df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 24602df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2461f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2462f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2463f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 24647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 24657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 24667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 24677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2468f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2469f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 24707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 24715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2472f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2473f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 24745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24757cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 24767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 24775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24787cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 24797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 24807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 24817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 24827cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 24837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 24847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 24857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 24867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 24877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 24887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 24897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 24907cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 24917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 24927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 24937cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 24947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 24957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 24967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 24977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 24985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 25007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 25017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 25027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 25035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 250471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 250571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 250671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 250771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 25086c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 250939ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2510df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2511f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 251271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 251371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 251471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 2515f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2516f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 251771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 2518f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 251971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 2520f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 252171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 252244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 252344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 252444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 252544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 252644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 25274afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 252817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 252944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 253044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 253144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 253271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 253371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 253471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 25358467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2536b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2537319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 25386217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2539319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2540319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2541319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2542319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2543bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 2544bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 2545bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 254644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 254744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 254844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 254944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2550bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2551bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2552de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2553bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2554bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2555bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2556bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 2557bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 255844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 255944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 256044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 256144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 256244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 25634afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 256417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 256544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 2566bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 256744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2568bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 2569bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2570bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2571bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2572bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2573319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 25746217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2575319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2576319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2577319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2578319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2579e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2580e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 25812d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2582e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2583bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2584bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 258585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 258685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 258785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 258885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2589a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 259033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2591a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 259298be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 259333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 259433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 259533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 259698be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 259733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 259833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 259998be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 260098be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 260133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 260233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2603a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 260433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 2605c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2606e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2607c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2608ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2609a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 261033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 26110d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 261233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 261333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 261433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 261533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 261698be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 261733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 261833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 261933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 262089951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 262189951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 262289951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 262389951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 2624a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 262533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 262633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 262733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 262833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 262933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 263033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 263133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 263233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 263389951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 263489951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 263589951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 26364306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 26374306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 2638ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 2639ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 2640ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 2641bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 2642ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2643ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 2644ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2645ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 264633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 26474306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 26480d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 264933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2650a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 265133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 265233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 265333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2654c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 265583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2656c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2657c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 265883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 265983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 266083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 266183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 266283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 266383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 266483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 266583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 266683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 266783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 266883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 266983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 267083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 267183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 267283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 267383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 267483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 267583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 267683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 267783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 267883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 2679c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2680c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2681e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2682c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2683c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2684c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2685c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2686c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2687c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 2688c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 2689c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2690c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 269117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 2692653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2693c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2694c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2695c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2696c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2697c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2698c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2699c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2700c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2701c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2702c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 270361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2704c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 270517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 2706653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2707c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2708c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2709c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2710c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2711c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2712c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2713c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2714c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2715c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2716c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2717c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2718c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2719c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2720c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 2721c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2722c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 2723090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 2724090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 2725153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 2726090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 2727090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 2728c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2729c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 2730c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 2731c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2732c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 2733c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 2734c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 2735c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 2736c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2737c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2738c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2739c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 2740c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 2741c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 2742c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 2743c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2744090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2745090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 2746090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 2747c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2748c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 2749077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 2750c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2751c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2752c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2753c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 2754077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 2755c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2756c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2757c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 2758c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2759c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 276039f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 2761c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2762c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2763c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 2764c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 2765c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2766a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 2767a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 2768c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian/// 'l' or 'L' , but not always. For typedefs, we need to use 2769a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2770a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 2771a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 27728e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 2773a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 2774c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 2775c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2776a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 2777c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian else 2778c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 2779c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2780a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 2781a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2782a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2783a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 2784a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 27857d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 2786153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 278782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 278882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 278982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 279082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 27915b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 27925b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 279382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 279482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 27958b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 2796153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 27978b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 27988b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 27998b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 28009a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 28018b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 28028b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 28038b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 28048b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 280582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 280682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 280782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 2808153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 2809090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 28106ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 2811e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 2812ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 2813ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 2814ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 2815ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 2816ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner default: assert(0 && "Unhandled builtin type kind"); 2817ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 2818ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 2819ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 2820ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 2821ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 2822ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 2823ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULong: 282472696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 2825ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 282672696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 2827ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 2828ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 2829ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 2830ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 2831ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 2832ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 2833ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Long: 2834ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner encoding = 2835ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 2836ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 2837ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 2838ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 2839ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 2840ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 2841ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 284243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2843ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2844ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 2845ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2846ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2847ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2848ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ComplexType *CT = T->getAsComplexType()) { 2849c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 2850c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 2851c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 2852ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2853ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2854ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 28556217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 285685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2857a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2858a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2859a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2860a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2861a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 28628e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 2863a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2864a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2865a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2866a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 28679fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 2868a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 28696217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 28706217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 2871a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 2872a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2873a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2874a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2875a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2876a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 2877a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 2878a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 2879a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 2880a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 2881a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 2882a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2883a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 2884a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 2885a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2886a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 288714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (isObjCSelType(PointeeTy)) { 28888baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 28898baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2890c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 289185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 289285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 289385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 289485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2895e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 289685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 289785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 289885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 28996217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 29009533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 29019533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 29029533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 29039533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 29049533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 29059533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 29069533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 29079533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 29089533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 29099533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 29109533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 291185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 291285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2913a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2914a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2915ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 291643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2917ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2918ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2919ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2920ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 2921ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 2922ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 2923559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 2924559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 2925559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 2926559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 2927559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2928559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2929559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 2930559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 293185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2932559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2933559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 2934559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 2935559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 2936559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 2937559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 2938559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 293985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2940559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2941559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2942559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 2943559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 2944ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2945ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2946ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2947ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->getAsFunctionType()) { 2948c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 2949ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2950ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2951ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 29526217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 295382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2954d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2955502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2956502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2957502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2958502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2959502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2960502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 29610d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 29627d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 296317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 296417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 296544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 296643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2967d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 296844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2969d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2970d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2971d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2972d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 297343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 297443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 297543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2976d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2977a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2978a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2979a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 298043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2981d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 29827d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 29836de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2984d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 2985ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2986ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2987ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2988ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 29898b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 29908b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 29918b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 29928b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2993ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2994ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2995ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2996ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 299721a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 2998ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2999ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3000ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3001ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isObjCInterfaceType()) { 300243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 300343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 300443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 300543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 300643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 300743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3008f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 300943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3010f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 301143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 301243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 301343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 301443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 301543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 301643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 301743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 301843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3019ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 302043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 3021ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3022ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ObjCObjectPointerType *OPT = T->getAsObjCObjectPointerType()) { 302314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 302414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 302514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3026ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3027ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3028ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCClassType()) { 302914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 303014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3031ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3032ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3033ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 303414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff getObjCEncodingForTypeImpl(getObjCIdType(), S, 303514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 303614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 303714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 303814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 303914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 304014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 304167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 304267ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 304314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 304414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 304514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 304614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 304714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 304814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 304914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3050ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3051ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3052ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3053ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3054ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3055ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 3056ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // We encode the underlying type which comes out as 3057ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3058ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 3059ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner getObjCEncodingForTypeImpl(PointeeTy, S, 3060ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner false, ExpandPointedToStructures, 3061ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 306214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 306314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3064ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3065ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 3066ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD || EncodingProperty) { 3067ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 306867ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff S += OPT->getInterfaceDecl()->getNameAsCString(); 306967ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 307067ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3071ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3072ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3073ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 3074ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3075ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3076ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3077ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3078ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3079ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3080ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 308185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 308285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 3083a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3084ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3085ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3086ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3087ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3088ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3089ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3090ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3091ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3092ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3093ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3094ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3095ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3096ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3097ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3098ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3099ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3100b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 3101b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3102b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3103b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3104b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3105ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3106de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 31077e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 31087e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3109ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 3110319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 3111319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3112319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 3113319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 3114319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 3115319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 3116b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3117b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 31186217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *ptr = TD->getUnderlyingType()->getAs<PointerType>(); 3119c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 3120c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3121b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 3122c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 3123c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3124b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 3125b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3126b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3127ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3128a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3129390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3130390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3131ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3132de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 31338baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 31348baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3135a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 3136a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 31372198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 31382198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 3139a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 31402198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 31412198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 31427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 31437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 31447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 31457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 31467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 31477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 31487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 31497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 31507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 31517532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 31527532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 31537532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 31547532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 31557532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 31567532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 31577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 31587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 31597532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 31607532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3161d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 3162d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 3163d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas GregorTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3164d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 3165d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor OverloadedFunctionDecl *Template) { 3166d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 3167d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 3168d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 3169d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 3170d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 3171d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3172d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 3173d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3174d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3175d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 3176d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 3177d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 3178d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 3179d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 31807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 31817532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 31827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 31837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 31847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(NNS->isDependent() && "Nested name specifier must be dependent"); 31857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 31867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 31877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 31887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 31897532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 31907532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 31917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 31927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 31937532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 31947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 31957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 31967532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 31977532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 31987532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 31997532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 32007532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 32017532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 32027532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 32037532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 32047532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 32057532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 32067532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 32077532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3208b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3209d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3210d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3211d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 3212b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 3213b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 3214b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3215b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3216b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3217b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3218b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3219b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3220b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3221b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3222b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3223b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3224b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3225b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 3226b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3227b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3228b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3229b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3230b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3231b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3232fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3233fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3234fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3235f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 3236fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3237fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3238fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3239fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 324040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3241fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3242fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 3243fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 3244fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3245fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 32464fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 32474fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 32484fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 32494fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz JahanianQualType::GCAttrTypes ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 3250b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttrs = QualType::GCNone; 32514fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 32524fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3253b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 32544fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 3255a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // (or pointers to them) be treated as though they were declared 3256a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 3257a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (GCAttrs == QualType::GCNone) { 3258f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff if (Ty->isObjCObjectPointerType()) 3259a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian GCAttrs = QualType::Strong; 3260a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 32616217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 3262a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3263c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3264c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3265f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 3266c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian return QualType::GCNone; 32674fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3268b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 32694fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 32704fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 32716ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 32726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 32736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3274770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 32756ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 32766ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 32776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 32786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 32796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 32806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 328161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 32826ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 32836ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 32844084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 32854084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 32864084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 32874084c306635b70f37029dca938444e6013f08684Steve Naroff 32884084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 32894084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 32904084c306635b70f37029dca938444e6013f08684Steve Naroffstatic bool ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 32914084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rProto) { 32924084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 329314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 32944084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 32954084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 32964084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 32974084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 32984084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 32994084c306635b70f37029dca938444e6013f08684Steve Naroff} 330014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 33014084c306635b70f37029dca938444e6013f08684Steve Naroff/// ClassImplementsProtocol - Checks that 'lProto' protocol 33024084c306635b70f37029dca938444e6013f08684Steve Naroff/// has been implemented in IDecl class, its super class or categories (if 33034084c306635b70f37029dca938444e6013f08684Steve Naroff/// lookupCategory is true). 33044084c306635b70f37029dca938444e6013f08684Steve Naroffstatic bool ClassImplementsProtocol(ObjCProtocolDecl *lProto, 33054084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCInterfaceDecl *IDecl, 33064084c306635b70f37029dca938444e6013f08684Steve Naroff bool lookupCategory, 33074084c306635b70f37029dca938444e6013f08684Steve Naroff bool RHSIsQualifiedID = false) { 33084084c306635b70f37029dca938444e6013f08684Steve Naroff 33094084c306635b70f37029dca938444e6013f08684Steve Naroff // 1st, look up the class. 33104084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCList<ObjCProtocolDecl> &Protocols = 33114084c306635b70f37029dca938444e6013f08684Steve Naroff IDecl->getReferencedProtocols(); 33124084c306635b70f37029dca938444e6013f08684Steve Naroff 33134084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCList<ObjCProtocolDecl>::iterator PI = Protocols.begin(), 33144084c306635b70f37029dca938444e6013f08684Steve Naroff E = Protocols.end(); PI != E; ++PI) { 33154084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 33164084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 33174084c306635b70f37029dca938444e6013f08684Steve Naroff // This is dubious and is added to be compatible with gcc. In gcc, it is 33184084c306635b70f37029dca938444e6013f08684Steve Naroff // also allowed assigning a protocol-qualified 'id' type to a LHS object 33194084c306635b70f37029dca938444e6013f08684Steve Naroff // when protocol in qualified LHS is in list of protocols in the rhs 'id' 33204084c306635b70f37029dca938444e6013f08684Steve Naroff // object. This IMO, should be a bug. 33214084c306635b70f37029dca938444e6013f08684Steve Naroff // FIXME: Treat this as an extension, and flag this as an error when GCC 33224084c306635b70f37029dca938444e6013f08684Steve Naroff // extensions are not enabled. 33234084c306635b70f37029dca938444e6013f08684Steve Naroff if (RHSIsQualifiedID && ProtocolCompatibleWithProtocol(*PI, lProto)) 33244084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 33254084c306635b70f37029dca938444e6013f08684Steve Naroff } 33264084c306635b70f37029dca938444e6013f08684Steve Naroff 33274084c306635b70f37029dca938444e6013f08684Steve Naroff // 2nd, look up the category. 33284084c306635b70f37029dca938444e6013f08684Steve Naroff if (lookupCategory) 33294084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCCategoryDecl *CDecl = IDecl->getCategoryList(); CDecl; 33304084c306635b70f37029dca938444e6013f08684Steve Naroff CDecl = CDecl->getNextClassCategory()) { 33314084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCCategoryDecl::protocol_iterator PI = CDecl->protocol_begin(), 33324084c306635b70f37029dca938444e6013f08684Steve Naroff E = CDecl->protocol_end(); PI != E; ++PI) 33334084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 33344084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 33354084c306635b70f37029dca938444e6013f08684Steve Naroff } 33364084c306635b70f37029dca938444e6013f08684Steve Naroff 33374084c306635b70f37029dca938444e6013f08684Steve Naroff // 3rd, look up the super class(s) 33384084c306635b70f37029dca938444e6013f08684Steve Naroff if (IDecl->getSuperClass()) 33394084c306635b70f37029dca938444e6013f08684Steve Naroff return 33404084c306635b70f37029dca938444e6013f08684Steve Naroff ClassImplementsProtocol(lProto, IDecl->getSuperClass(), lookupCategory, 33414084c306635b70f37029dca938444e6013f08684Steve Naroff RHSIsQualifiedID); 33424084c306635b70f37029dca938444e6013f08684Steve Naroff 33434084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 33444084c306635b70f37029dca938444e6013f08684Steve Naroff} 33454084c306635b70f37029dca938444e6013f08684Steve Naroff 33464084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 33474084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 33484084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 33494084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 33504084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 33514084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 33524084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 33534084c306635b70f37029dca938444e6013f08684Steve Naroff} 33544084c306635b70f37029dca938444e6013f08684Steve Naroff 33554084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 33564084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 33574084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 33584084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 33594084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 33604084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isVoidPointerType() || 33614084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 33624084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 33634084c306635b70f37029dca938444e6013f08684Steve Naroff else if (rhs->isVoidPointerType() || 33644084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 33654084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 33664084c306635b70f37029dca938444e6013f08684Steve Naroff 33674084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 33684084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsOPT = rhs->getAsObjCObjectPointerType(); 33694084c306635b70f37029dca938444e6013f08684Steve Naroff 33704084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 33714084c306635b70f37029dca938444e6013f08684Steve Naroff 33724084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 33734084c306635b70f37029dca938444e6013f08684Steve Naroff // If the RHS is a unqualified interface pointer "NSString*", 33744084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 33754084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 33764084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 33774084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 33784084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 33794084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 33804084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 33814084c306635b70f37029dca938444e6013f08684Steve Naroff if (!ClassImplementsProtocol(*I, rhsID, true)) 33824084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 33834084c306635b70f37029dca938444e6013f08684Steve Naroff } 33844084c306635b70f37029dca938444e6013f08684Steve Naroff } 33854084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 33864084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 33874084c306635b70f37029dca938444e6013f08684Steve Naroff } 3388de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // Both the right and left sides have qualifiers. 33894084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 33904084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 33914084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 33924084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 3393de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 3394de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 3395de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 3396de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 33974084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 33984084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 33994084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 34004084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 34014084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 34024084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 34038f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 34048f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 3405de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 34064084c306635b70f37029dca938444e6013f08684Steve Naroff // If the RHS is a qualified interface pointer "NSString<P>*", 34074084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 34084084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 34094084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 34104084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 34114084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 34124084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 34134084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 34144084c306635b70f37029dca938444e6013f08684Steve Naroff if (ClassImplementsProtocol(*I, rhsID, true)) { 34154084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 34164084c306635b70f37029dca938444e6013f08684Steve Naroff break; 34174084c306635b70f37029dca938444e6013f08684Steve Naroff } 34184084c306635b70f37029dca938444e6013f08684Steve Naroff } 34194084c306635b70f37029dca938444e6013f08684Steve Naroff } 34204084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 3421de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 3422de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 34234084c306635b70f37029dca938444e6013f08684Steve Naroff 3424de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 3425de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 34264084c306635b70f37029dca938444e6013f08684Steve Naroff 34274084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 34284084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 34294084c306635b70f37029dca938444e6013f08684Steve Naroff 34304084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsOPT = 34314084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 34324084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 34334084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 34344084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 34354084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 34364084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 34374084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 34384084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 34394084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 34404084c306635b70f37029dca938444e6013f08684Steve Naroff if (ClassImplementsProtocol(*I, lhsID, true)) { 34414084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 34424084c306635b70f37029dca938444e6013f08684Steve Naroff break; 34434084c306635b70f37029dca938444e6013f08684Steve Naroff } 34444084c306635b70f37029dca938444e6013f08684Steve Naroff } 34454084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 34464084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 34474084c306635b70f37029dca938444e6013f08684Steve Naroff } 34484084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 34494084c306635b70f37029dca938444e6013f08684Steve Naroff } 34504084c306635b70f37029dca938444e6013f08684Steve Naroff // Both the right and left sides have qualifiers. 34514084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 34524084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 34534084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 34544084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 34554084c306635b70f37029dca938444e6013f08684Steve Naroff 34564084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 34574084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 34584084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 34594084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 34604084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 34614084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 34624084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 34634084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 34644084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 34654084c306635b70f37029dca938444e6013f08684Steve Naroff break; 34664084c306635b70f37029dca938444e6013f08684Steve Naroff } 34674084c306635b70f37029dca938444e6013f08684Steve Naroff } 34684084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 34694084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 34704084c306635b70f37029dca938444e6013f08684Steve Naroff } 34714084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 34724084c306635b70f37029dca938444e6013f08684Steve Naroff } 34734084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 34744084c306635b70f37029dca938444e6013f08684Steve Naroff} 34754084c306635b70f37029dca938444e6013f08684Steve Naroff 34764084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 34774084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 34784084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 34794084c306635b70f37029dca938444e6013f08684Steve Naroff/// 34804084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 34814084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 34824084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 34834084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 34844084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 34854084c306635b70f37029dca938444e6013f08684Steve Naroff 34864084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 34874084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 34884084c306635b70f37029dca938444e6013f08684Steve Naroff QualType(RHSOPT,0), 34894084c306635b70f37029dca938444e6013f08684Steve Naroff false); 34904084c306635b70f37029dca938444e6013f08684Steve Naroff 34914084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 34924084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 34934084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 34944084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 34954084c306635b70f37029dca938444e6013f08684Steve Naroff 34964084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 349714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 349814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 34993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 35003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 35016ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 35026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 35036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 35046ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 35056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 35066ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 35076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 3508c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 35096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 35106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 35116ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 35126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 3513c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 35146ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 35156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 3516c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 3517c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 351891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 351991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 352091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 352191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 352291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 3523c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 35244084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 35258f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 35268f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 352791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 35288f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 35298f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 353091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 353191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 353291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 353391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 353491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 353591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 353691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 35376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 35386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 3539389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 3540389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 354114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *LHSOPT = LHS->getAsObjCObjectPointerType(); 354214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *RHSOPT = RHS->getAsObjCObjectPointerType(); 3543389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 354414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 3545389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 354614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 354714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 354814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 3549389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 3550389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 3551ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 3552ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 3553ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 3554ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 35553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 35563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 35573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 35583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 35593d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 35603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 35613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 356272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 356372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 35643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 35653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 35663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 35673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 35683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 35693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 357061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 357161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 357261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 357361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 35746dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump // FIXME: double check this 35752455636163fdd18581d7fdae816433f886d88213Mike Stump bool NoReturn = lbase->getNoReturnAttr() || rbase->getNoReturnAttr(); 35762455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != lbase->getNoReturnAttr()) 35772455636163fdd18581d7fdae816433f886d88213Mike Stump allLTypes = false; 35782455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != rbase->getNoReturnAttr()) 35792455636163fdd18581d7fdae816433f886d88213Mike Stump allRTypes = false; 35802455636163fdd18581d7fdae816433f886d88213Mike Stump 35813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 3582465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 3583465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 35843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 35853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 35863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 35873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 35883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 35893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 35903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 35913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 35923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 35933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 35943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 35957fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 35967fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 35977fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 35983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 35993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 36003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 36013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 36023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 36033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 36043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 36053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 360661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 360761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 360861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 360961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 36103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 36113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 36123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 36133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 36142455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 36152455636163fdd18581d7fdae816433f886d88213Mike Stump NoReturn); 36163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 36173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 36183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 36193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 36203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 362172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 36223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 3623465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 36243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 36253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 36263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 36273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 36283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 36293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 36303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 36313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 36323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 36333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 36343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 36353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 36363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 36373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 36383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 36393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 36403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 36412d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 36422d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getTypeQuals(), NoReturn); 36433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 36443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 36453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 36463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 36472455636163fdd18581d7fdae816433f886d88213Mike Stump return getFunctionNoProtoType(retType, NoReturn); 36483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 36493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 36503d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 365143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 365243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 365343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 36547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 36557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 36563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 36573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 36587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 36597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 36606217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = LHS->getAs<ReferenceType>()) 3661c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 36626217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = RHS->getAs<ReferenceType>()) 3663c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 36643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 36653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 36663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 36673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3668f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 36693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 36703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 36713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 36723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 36735a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Note that we handle extended qualifiers later, in the 36745a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // case for ExtQualType. 36755a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers()) 36763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 36773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3678852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 3679852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 3680f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 36811adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 36821adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 36831adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 36841adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 36854c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 368607d258756dc856c6987c394a0972884e6ed46765Eli Friedman // Strip off objc_gc attributes off the top level so they can be merged. 368707d258756dc856c6987c394a0972884e6ed46765Eli Friedman // This is a complete mess, but the attribute itself doesn't make much sense. 3688585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (RHSClass == Type::ExtQual) { 368907d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = RHSCan.getObjCGCAttr(); 369007d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 369186f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian QualType::GCAttrTypes GCLHSAttr = LHSCan.getObjCGCAttr(); 36928df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. 369386f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 369486f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 369586f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 369686f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCLHSAttr != GCAttr) || 369786f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCLHSAttr != GCAttr && 369814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff !LHSCan->isObjCObjectPointerType())) 36998df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 37008df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian 370107d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS = QualType(cast<ExtQualType>(RHS.getDesugaredType())->getBaseType(), 370207d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS.getCVRQualifiers()); 370307d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 37048df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 37058df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 37068df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 37078df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 37088df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 37098df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 371007d258756dc856c6987c394a0972884e6ed46765Eli Friedman return Result; 371107d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3712585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3713585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (LHSClass == Type::ExtQual) { 371407d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = LHSCan.getObjCGCAttr(); 371507d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 37168df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian QualType::GCAttrTypes GCRHSAttr = RHSCan.getObjCGCAttr(); 37178df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. __strong 371886f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 371986f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 372086f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 372186f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCRHSAttr != GCAttr) || 372286f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCRHSAttr != GCAttr && 372314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff !RHSCan->isObjCObjectPointerType())) 37248df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 372586f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian 372607d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS = QualType(cast<ExtQualType>(LHS.getDesugaredType())->getBaseType(), 372707d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS.getCVRQualifiers()); 372807d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 37298df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 37308df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 37318df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 37328df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 37338df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 37348df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 3735354e53da656237e25518b3fafa3bf84de6e6f57eEli Friedman return Result; 373607d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3737585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3738585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian 37394c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 3740a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 3741a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 3742a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 3743a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 3744a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 3745213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 3746213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 3747213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 3748ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 37494e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 37504e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 37511adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 37521adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 37533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 37543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 37553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 3756bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 37573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 37583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 37593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 3760bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 37611adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 37623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 3763ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 37643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 37654a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 37661adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 376772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 376872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 376972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 377072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 377172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 377272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 377372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 377472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 37757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 37767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 377772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 377872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 377972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 378072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 378172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 378272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 378372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 378472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 378572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 378672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 378772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 37881adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 37893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 37903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 37916217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 37926217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 37933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 37943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 379507d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 379661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 379707d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 379861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 37993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 38003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 3801c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 3802c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 3803c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 38046217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 38056217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 3806c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3807c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 3808c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3809c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 3810c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3811c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 3812c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 3813c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 38141adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 38153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 38163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 38173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 38183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 38193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 38203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 38213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 38223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 38233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 38243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 382561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 382661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 382761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 382861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 38293bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 38303bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 38313bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 38323bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 38333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 38343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 383561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 383661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 383761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 383861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 38393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 38403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 38413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 38423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 38433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 38443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 38453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 38463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 38473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 38483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 38493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 38503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 38513bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 38523bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 38537e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 38547e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 38553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 38561adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 38573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 385872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 385972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 38603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 38611adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 38623cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 38633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 386464cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 386564cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 386664cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 38673cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 38685a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 38693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 38703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 387161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 387261490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 38735fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 38745a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 38755a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 38765fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 38775fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 38785fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 38795fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 38805fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 38815fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 38823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 388361490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 388414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 388514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (canAssignObjCInterfaces(LHS->getAsObjCObjectPointerType(), 388614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff RHS->getAsObjCObjectPointerType())) 388714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 388814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 3889bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 389014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 38915a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 38925a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 38935a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 38945a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ExtQual: 38955a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: ExtQual types can be compatible even if they're not 38965a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // identical! 38975a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 38985a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // First attempt at an implementation, but I'm not really sure it's 38995a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // right... 39005a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#if 0 39015a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* LQual = cast<ExtQualType>(LHSCan); 39025a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* RQual = cast<ExtQualType>(RHSCan); 39035a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LQual->getAddressSpace() != RQual->getAddressSpace() || 39045a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LQual->getObjCGCAttr() != RQual->getObjCGCAttr()) 39055a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 39065a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman QualType LHSBase, RHSBase, ResultType, ResCanUnqual; 39075a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LHSBase = QualType(LQual->getBaseType(), 0); 39085a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman RHSBase = QualType(RQual->getBaseType(), 0); 39095a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = mergeTypes(LHSBase, RHSBase); 39105a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (ResultType.isNull()) return QualType(); 39115a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResCanUnqual = getCanonicalType(ResultType).getUnqualifiedType(); 39125a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getUnqualifiedType() == ResCanUnqual) 39135a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return LHS; 39145a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (RHSCan.getUnqualifiedType() == ResCanUnqual) 39155a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return RHS; 39165a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getAddrSpaceQualType(ResultType, LQual->getAddressSpace()); 39175a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getObjCGCQualType(ResultType, LQual->getObjCGCAttr()); 39185a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType.setCVRQualifiers(LHSCan.getCVRQualifiers()); 39195a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return ResultType; 39205a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#endif 39217532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 39227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 39237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 39247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 3925ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 392672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 392772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 3928ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 39297192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 39305426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 3931ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 3932ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 393388054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 3934ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 3935ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 3936ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 3937f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 3938f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 3939f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 3940f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 3941ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 3942ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3943ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3944ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 3945ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 3946ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 3947ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 3948ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 3949ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 3950ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 3951ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 3952ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 3953ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 3954ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 3955ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 3956ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 3957ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 3958ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 3959ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 3960ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 3961ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 39622df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 39632df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 3964ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 3965ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 3966ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 3967ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 3968ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3969ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 39702cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 39712cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 39722cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 397386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 397486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 397586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 397686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 397786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 397886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 397986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 398086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 398186df27bbdbb98c39ec2184695c0561209f91beddChris Lattnerstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 398286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 398386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 398486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 398586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 398686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 398786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 398886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 398986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 399086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 399186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 399286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 399386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 399486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 399586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 399686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 399786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 399886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 399986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 400086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 400186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 400286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 400386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 400486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 400586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 400686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 400786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 400886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 400986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 401086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 401186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 401286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 401386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 401486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 401586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 401686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 401786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 401886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 401986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 402086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 402186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 402286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 402386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 402486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 402586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 402686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 402786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 402886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 402986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 403086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 403186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 403286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 403386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 403486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 403586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 403686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 403786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 403886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 403986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 404086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 404186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 404286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 404386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 404486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 404586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 404686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 404786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 404886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 404986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 405086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 405186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 405286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 405386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 405486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 405586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 405686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 405786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 405886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 405986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 406086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 406186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 406286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 406386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 406486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 406586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 406686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 406786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 406886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 406986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 407086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 407186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 407286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 407386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 407486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 407586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 407686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 407786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 407886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 407986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 408086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 408186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 408286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 408386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 408486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 408586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 408686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 408786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 408886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 408986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 409086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 409186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 409286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 409386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 409486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 409586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 409686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 409786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 409886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 409986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 410086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 410186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 41029a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 4103c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 4104c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 4105f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 410686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 410786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4108fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 41099a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 4110f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 4111782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 4112f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 4113f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 4114f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 4115fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 4116f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 4117fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 4118fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 4119fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 4120782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 412186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 412286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 412386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 412486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 412586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 412686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 412786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 412886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 412986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 413086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 413186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 413286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 413386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 413486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 413586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 413686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 413786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Type.getQualifiedType(QualType::Const); 413886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 413986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 414086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 414186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 414286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 414386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 414486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 414586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 414686df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 414786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 414886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 414986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 415086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 415186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 415286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 415386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 415486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 415586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 415686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 415786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 415886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 415986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 416086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 416186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 416286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 416386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 416486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 416586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 416686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 416786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 416886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 416986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 417086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 417186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 417286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 417386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 417486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 417586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 417686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 4177