ASTContext.cpp revision 8f16756441450ed9fb39316e47d107fc2a1ef35b
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" 153d598a5ab3c8aabce0a03a2f5dea65eee643e5acAnders Carlsson#include "clang/AST/ASTRecordLayout.h" 1649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 17980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 18aaba5e346dffdbad5d1c42765a89e4a7afb0da67Douglas Gregor#include "clang/AST/DeclTemplate.h" 19e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 202cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor#include "clang/AST/ExternalASTSource.h" 211b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner#include "clang/Basic/Builtins.h" 22a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 2485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 256fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 26557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner#include "llvm/Support/MemoryBuffer.h" 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3361710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 35e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 361b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 371b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner bool FreeMem, unsigned size_reserve) : 38ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 39c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), 40c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor SourceMgr(SM), LangOpts(LOpts), 412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments(false), FreeMemory(FreeMem), Target(t), 422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 43e4f2142d00fa5fdb580c4e2413da91882d955381Chris Lattner BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 44e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 45e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 4614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 47e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 48e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 524b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 55b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 56b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 57b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 65b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 66b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 67b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 68b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 74ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 751ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 761ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 771ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNSEnd = NestedNameSpecifiers.end(); 78e7dcd782df0e1cc3a63e429a866098e69db39153Douglas Gregor NNS != NNSEnd; 791ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 801ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 81ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 82ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 83ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 84ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 85b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 882cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid 892cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 902cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 912cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 922cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 97dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 98dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) 0, 99dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 100dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 101dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 102dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 103c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 106dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 109dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 110dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 111dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 112dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 113dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 115dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 116dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 117dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 118dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 119dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1202cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1212cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1222cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1232cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1242cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 129f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Types.push_back((R = QualType(new (*this,8) BuiltinType(K),0)).getTypePtr()); 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 14115b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 16364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1642df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1652df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1662df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1672df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1683a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1693a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1703a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1713a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 17264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 173f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 174f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 175f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 176f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 177f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 178f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 179f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 180f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 181f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 182f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 1838e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 184898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 185898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 186898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 187898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 188898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 189898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 190898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 191898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 1928e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 193e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // Placeholder type for C++0x auto declarations whose real type has 194e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 195e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 196e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2018e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2027e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 20314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 204de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 205de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 206de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 207de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 208de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // Builtin types for 'id' and 'Class'. 209de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 210de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 21114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 212a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 21333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 21433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 21533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2166e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2176e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2186e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 2222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor class BeforeInTranslationUnit 2232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 2242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 2252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 2272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 2282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 2302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 2312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 2322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 2332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 2342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 2362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 2382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 2402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 2422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 2432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 2442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorstatic bool 2452e22253e03e175144aeb9d13350a12fd83f858beDouglas GregorisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 2462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 2472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *BufferStart 2482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 2492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 2502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 2512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 2532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 2562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 2572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 2592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 2622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 2632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 2652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// it has one. 2662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 2672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 2682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 2692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 2712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 2722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor llvm::DenseMap<const Decl *, std::string>::iterator Pos 2732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 2742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 2752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 2762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If we have an external AST source and have not yet loaded comments from 2782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 2792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 2802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 2812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 2822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 2842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 2852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 2862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 2882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 2892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If there are no comments anywhere, we won't find anything. 2912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 2922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 2932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 2952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 2962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 2972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 2982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 2992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 3012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 3022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = std::lower_bound(Comments.begin(), Comments.end(), 3032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 3042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 3052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 3072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 3082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DeclStartDecomp 3092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 3102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *FileBufferStart 3112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 3122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 3142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 3152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 3162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 3172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 3202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 3212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 3232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 3242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 3252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 3262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 3272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + 3282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getFileOffset(LastComment->getBegin()), 3292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 3302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 3312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 3352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 3372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 3392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 3432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 3442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 3452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 3482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 3492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 3522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 3532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned DeclStartLine 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 3552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 3562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 3582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 3602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 3612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 3622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 3652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 3662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned ExpectedLine 3682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 3692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 3702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 3712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 3722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 3732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 3742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 3752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 3772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 3782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 3792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 3802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 3832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 3842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 3852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 3862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 3892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 3902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 3912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 3922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 3932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 3962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExpectedLine 3972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 3982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 4012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 4022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 4032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 4062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 4072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 4082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 4092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 4112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 4122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 4162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + 4172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getFileOffset(LastComment->getBegin()), 4182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 4212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 422464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 423464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 424464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 425a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 426b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 427b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 428b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 429b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 430b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 431b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 432b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 433b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 434b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 435b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 436b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 437b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 438b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 439af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// getDeclAlign - Return a conservative estimate of the alignment of the 440af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 441af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 442b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 443dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 444dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 44540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 446dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 447dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 448af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 449af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 4504cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson if (const ReferenceType* RT = T->getAsReferenceType()) { 4514cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 452f0930235ce58a91aa3b840bece9052f44d630536Anders Carlsson Align = Target.getPointerAlign(AS); 4534cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson } else if (!T->isIncompleteType() && !T->isFunctionType()) { 4544cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 455dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 456dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 457dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 458dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 459dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 460af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 461dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 462dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 463af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 464b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 465a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 466a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 467d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 4681d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 4695e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 4705e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 471a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 47272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 47372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 47418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 47572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 47672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 47718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 47872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 47972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 4805d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 4815d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 48218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 48318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 48418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 48518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 48618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 48772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 488fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 48918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 49018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 49118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 49218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 4937e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor case Type::ConstantArrayWithExpr: 4947e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor case Type::ConstantArrayWithoutExpr: 495fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 4961d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 497030d8846c7e520330007087e949f621989876e3aChris Lattner 49898be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 4999e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 500030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 501030d8846c7e520330007087e949f621989876e3aChris Lattner break; 5025c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 503213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 504030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 505030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 50698be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 5079e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 5084bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 5096fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 5106fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 5116fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 5126fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 513030d8846c7e520330007087e949f621989876e3aChris Lattner break; 514030d8846c7e520330007087e949f621989876e3aChris Lattner } 5155d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 5169e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 517a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 518692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 519d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 52018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 52118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 52218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 52318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 52418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 5256f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 5269e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 5279e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 5286f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 529692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 530692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 531692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 5326f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 5339e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 5349e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 5356f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 53664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 53764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 53864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 53964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 540f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 541f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 542f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 543f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 544f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 545f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 546f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 547f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 548692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 5496f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 5509e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 5519e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 5526f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 553692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 5546f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 5559e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 5569e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 5576f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 558692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 5596f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 5609e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 5619e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 5626f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 563692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 5646f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 5659e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 5669e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 5676f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 568ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 569ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 570ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 571ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 572ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 5736f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 5749e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 5759e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 5766f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5776f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 5785426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 5795426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 5806f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5816f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 5829e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 5839e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 5846f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5856e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 5866e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 5876e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 5881590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 589a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 590bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 591f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 592f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 593f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 594f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 595736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 596f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 597f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 598f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian case Type::ExtQual: 59998be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 60098be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 601f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian return getTypeInfo(QualType(cast<ExtQualType>(T)->getBaseType(), 0)); 602d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 60372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 6045426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 605f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 6066f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 607485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 608485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 609485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 610485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 611485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 612485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 613f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 614f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 6155426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 616f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 617f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 618f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 6197c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 6207c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 6217ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 6225d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 6236f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 6246f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 625bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 626f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 6271cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // FIXME: This is ABI dependent. We use the Itanium C++ ABI. 6281cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // http://www.codesourcery.com/public/cxx-abi/abi.html#member-pointers 6291cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // If we ever want to support other ABIs this needs to be abstracted. 6301cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson 631f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 6321cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson std::pair<uint64_t, unsigned> PtrDiffInfo = 6331cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 6341cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 635f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 636f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 6371cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 6381cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 639f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 6405d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 6415d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 6425d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 6435d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 64498be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 6459e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 6465d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 6475d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 6485d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 64944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 6501d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 65144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 65244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 65344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 65444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 65544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 65672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 65772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 6581d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 6591d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 6601d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 6618389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 6628389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 6638389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 6648389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 6658389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 6661d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 6677176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 6687176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 6691d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 6707176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 6717176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 6727176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 673dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 674a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 6757532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 67618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 67718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 67840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 67918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = Aligned->getAlignment(); 68018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 68118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 68218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 6837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 6847176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 68518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 68618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 68718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 68818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 68918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 69018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 69118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 69218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 693395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 694395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 695395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 696395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 69718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 69818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 69918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 70018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 70118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(getCanonicalType(T) != T && 70218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 70318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 70418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 70518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 70618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 70718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 708d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 709464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 7109e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 711a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 712a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 71334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 71434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 71534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 71634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 71734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 71834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 7191eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 7201eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 7211eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (const ComplexType* CT = T->getAsComplexType()) 7221eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 7231eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 7241eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 7251eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 7261eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 72734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 72834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 72934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 73034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 7318b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 7328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 7333b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 7348b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 7353b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 7368b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 7378b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 7388b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 7393b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 7403b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 7413b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 74240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 7433b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 7448b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7458b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 7468b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 7478b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 7489a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman FieldSize = BitWidthExpr->EvaluateAsInt(Context).getZExtValue(); 7498b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7508b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 7518b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 7528b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 7538b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7543b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 7553b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 7563b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 7573b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 7583b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 7598b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 7603b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 7613b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 76240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 7638b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 7648b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7658b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 7668b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 7678b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 7688b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 7698b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7708b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 7718b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 7728b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 7738b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 7748389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 7758389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 7768b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 7778b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 7788b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 7798b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 780c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 7818b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 7822f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson } else if (const ReferenceType *RT = FD->getType()->getAsReferenceType()) { 7832f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 7842f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson FieldSize = Context.Target.getPointerWidth(AS); 7852f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson FieldAlign = Context.Target.getPointerAlign(AS); 7868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 7878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 7888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 7898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 7908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 7918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 7928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 7933b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 7943b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 7953b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 7963b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 7973b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 7983b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 7993b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 8003b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 8013b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 80240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 8038b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 8048b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 8058b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 8068b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 8078b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 8088b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 8098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 8108b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 8118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 8128b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 8138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 8148b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 8158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 8168b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 8178b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 8188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 819d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar // Remember the next available offset. 820d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar NextOffset = Size; 821d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar 8228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 8238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 8248b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 8258b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 826a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 827a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 828a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 829a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 830a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 831f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 832a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 833a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 834a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 835a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 836a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 837a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 838a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 839a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 840a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 841a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 842a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 843a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 8448e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 8458e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 8468e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 8478e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 8488e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 8498e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 8508e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 8518e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 8528e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 8538e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8548e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 8558e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 8568e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8578e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8589820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 8599820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 86017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 86117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8629820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8639820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8649820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8659820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 8669820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8679820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8689820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 8699820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8709820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8719820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 8729820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 8739820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 8749820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 8759820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 87617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 87717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8789820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8799820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8809820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8819820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 8829820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 8839820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8849820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8859820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 8869820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 8879820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8889820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8899820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8908e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 8918e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 89217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 89317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8948e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8958e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8968e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8978e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 8988e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8998e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 9008e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 9018e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9028e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9038e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9048e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) 9058e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian{ 9068e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 90717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 90817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 9098e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 9108e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 9118e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9128e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 9138e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 9148e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 9158e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 9168e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 9178e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 9188e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9198e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9208e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9218e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 922b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 923b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 924b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 925b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 926b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 92744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 928b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 929b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 930532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 931532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 93244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 933d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCContainerDecl *Key = 934d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 935d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 936d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 93744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 938453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar unsigned FieldCount = D->ivar_size(); 939453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 940453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 9418e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 9428e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian FieldCount += SynthCount; 943d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 944453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 945453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 946453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 9478e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 948453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 949453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 950453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 9516a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 9526a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 9536a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 9546a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 955d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar 956913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // We start laying out ivars not at the end of the superclass 957913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // structure, but at the next byte following the last field. 958913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar uint64_t Size = llvm::RoundUpToAlignment(SL.NextOffset, 8); 959d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar 960d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(Size, Alignment); 9616a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 9626a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 963d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(); 9646a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 9656a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 96644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 9673b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 96840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 9693b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 97044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 97140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 97244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 97344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 97444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 97544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 97644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 9778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVector<ObjCIvarDecl*, 16> Ivars; 9788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ShallowCollectObjCIvars(D, Ivars, Impl); 9798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (unsigned k = 0, e = Ivars.size(); k != e; ++k) 9808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian NewEntry->LayoutField(Ivars[k], i++, false, StructPacking, *this); 9818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 98244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 98344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 98444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 98544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 98644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 98744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 988b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 989b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 990b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 991b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 992b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 993b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 994b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 995b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 996b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 997b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 99888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 999464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 1000464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 100198be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 10024b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 10034b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 10044bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 1005464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 100688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 1007464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 10084bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 100988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 101088a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 101188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 1012464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 10134bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 1014e267ff35b2f4e9d2b0d8bf24109d41cc7398b61bDouglas Gregor // FIXME: Avoid linear walk through the fields, if possible. 101517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis NewEntry->InitializeLayout(std::distance(D->field_begin(), D->field_end())); 101639ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 1017464175bba1318bef7905122e9fda20cff926df78Chris Lattner 10183b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 101940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 10203b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 10213b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 102240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 10238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 10248b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 10254bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 10264bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 10274bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 102844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 102917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = D->field_begin(), 103017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = D->field_end(); 103144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 103244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 10334bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 10344bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 10354bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 10361590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl NewEntry->FinalizeLayout(getLangOptions().CPlusPlus); 10375d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 1038464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1039464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1040a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1041a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1042a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1043a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 1044f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1045f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1046f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1047f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1048b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 1049b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 1050b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 1051b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1052b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr = QualType::GCNone; 1053b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 1054b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 1055b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 1056b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 1057b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 1058b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getAddressSpace() == 0 && 1059b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 1060b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttr = EQT->getObjCGCAttr(); 1061b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 1062b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 1063f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 1064b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Check if we've already instantiated this type. 1065ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 1066b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 1067ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 1068f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 1069b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 1070b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 1071ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 1072ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 1073ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 1074b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (!TypeNode->isCanonical()) { 1075f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Canonical = getAddrSpaceQualType(CanT, AddressSpace); 1076ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1077b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 1078f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 1079f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1080ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 1081b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 1082b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 1083f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 1084ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 1085b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 1086ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1087ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1088b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 1089b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr) { 1090d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1091b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1092d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 1093d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 10944027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 10954027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType Pointee = T->getAsPointerType()->getPointeeType(); 109658f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 10974027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 10984027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 10994027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 11004027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 1101b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 1102b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 1103b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1104b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 1105b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned AddressSpace = 0; 1106b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 1107b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 1108b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 1109b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 1110b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getObjCGCAttr() == QualType::GCNone && 1111b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 1112b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner AddressSpace = EQT->getAddressSpace(); 1113b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 1114b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 1115d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 1116d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check if we've already instantiated an gc qual'd type of this type. 1117d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian llvm::FoldingSetNodeID ID; 1118b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 1119d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian void *InsertPos = 0; 1120d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 1121b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 1122d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 1123d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // If the base type isn't canonical, this won't be a canonical type either, 1124d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // so fill in the canonical type field. 11255a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: Isn't this also not canonical if the base type is a array 11265a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // or pointer type? I can't find any documentation for objc_gc, though... 1127d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType Canonical; 1128d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (!T->isCanonical()) { 1129b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Canonical = getObjCGCQualType(CanT, GCAttr); 1130d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 1131b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 1132d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 1133d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1134d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 1135b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 1136b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 1137d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 1138d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Types.push_back(New); 1139b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 1140d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1141a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 11535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1158f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1162f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1164f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1170f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 1171f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 1172f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 1173f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 1174f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 1175f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 1176f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 1177f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 11905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1195f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1199f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1201f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12075618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 12085618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 12095618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1210296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1211296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 12125618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 12135618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 12145618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 12155618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12165618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 12175618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 12185618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 12195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 12205618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 1221296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 12225618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 12235618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 12245618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 12255618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 12265618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 12285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 12295618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1230f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12315618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 1232f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 12335618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 12345618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 12355618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 12365618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 12375618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12387c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 12397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 12407c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12477c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 12487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 12507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 12557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 12567c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 12587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 12597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 12607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 12627c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *New = new (*this,8) LValueReferenceType(T, Canonical); 12647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 12657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 12667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 12677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 12687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12697c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 12707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 12717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 12727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 12737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 12747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 12757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 12767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 12787c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 12797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 12817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12827c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 12837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 12847c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 12857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 12867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 12877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 12907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1291f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *New = new (*this,8) RValueReferenceType(T, Canonical); 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 12975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1300f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1301f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 1302f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 1303f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 1304f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1305f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1306f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1307f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1308f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1309f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1310f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1311f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1312f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1313f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1314f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1315f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1316f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1317f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1318f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1319f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1320f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1321f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1322f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1323f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1324f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1325f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 1326f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1327f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1328f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1329f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1330f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1331fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 1332fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 1333fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 133438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1335c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1336c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1337587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman assert((EltTy->isDependentType() || EltTy->isConstantSizeType()) && 1338587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1339587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 134038aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 134138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 134238aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 134338aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 134438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner 13455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 13460be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13497192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 13507192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 13515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 13525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 13545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 13565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 1357f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1358c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 13595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13607192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 13617192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1362f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1365566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 1366f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 13677192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 13685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13727e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// getConstantArrayWithExprType - Return a reference to the type for 13737e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// an array of the specified element type. 13747e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType 13757e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorASTContext::getConstantArrayWithExprType(QualType EltTy, 13767e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &ArySizeIn, 13777e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *ArySizeExpr, 13787e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier ASM, 13797e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 13807e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 13817e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Convert the array size into a canonical width matching the pointer 13827e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // size for the target. 13837e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor llvm::APInt ArySize(ArySizeIn); 13847e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 13867e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Compute the canonical ConstantArrayType. 13877e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor QualType Canonical = getConstantArrayType(getCanonicalType(EltTy), 13887e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 13897e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Since we don't unique expressions, it isn't possible to unique VLA's 13907e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // that have an expression provided for their size. 13917e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayWithExprType *New = 13927e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)ConstantArrayWithExprType(EltTy, Canonical, 13937e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ArySizeExpr, 13947e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ASM, EltTypeQuals, Brackets); 13957e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Types.push_back(New); 13967e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return QualType(New, 0); 13977e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor} 13987e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 13997e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// getConstantArrayWithoutExprType - Return a reference to the type for 14007e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// an array of the specified element type. 14017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType 14027e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorASTContext::getConstantArrayWithoutExprType(QualType EltTy, 14037e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &ArySizeIn, 14047e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier ASM, 14057e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals) { 14067e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Convert the array size into a canonical width matching the pointer 14077e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // size for the target. 14087e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor llvm::APInt ArySize(ArySizeIn); 14097e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 14107e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 14117e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Compute the canonical ConstantArrayType. 14127e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor QualType Canonical = getConstantArrayType(getCanonicalType(EltTy), 14137e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 14147e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayWithoutExprType *New = 14157e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)ConstantArrayWithoutExprType(EltTy, Canonical, 14167e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 14177e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Types.push_back(New); 14187e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return QualType(New, 0); 14197e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor} 14207e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 1421bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1422bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 14237e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 14247e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1425c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 14267e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14277e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1428c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1429c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1430c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1431566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 14327e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)VariableArrayType(EltTy, QualType(), 14337e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor NumElts, ASM, EltTypeQuals, Brackets); 1434c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1435c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1436c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1437c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1438c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1439c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1440898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1441898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 1442898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 1443898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 14447e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 14457e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1446898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 14477e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14487e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1449898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1450898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1451898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1452898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 1453898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 1454898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1455566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek DependentSizedArrayType *New = 14567e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new (*this,8) DependentSizedArrayType(EltTy, QualType(), 14577e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor NumElts, ASM, EltTypeQuals, 14587e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Brackets); 1459898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1460898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 1461898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1462898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1463898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1464898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1465c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1466c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1467c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1468c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 14690be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1470c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1471c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 1472c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 1473c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1474c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1475c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1476c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1477c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1478c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1479c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1480c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1481f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 14822bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1483c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1484c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1485c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1486c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1487f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14882bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1489c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 14907e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor IncompleteArrayType *New 14917e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor = new (*this,8) IncompleteArrayType(EltTy, Canonical, 14927e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ASM, EltTypeQuals); 1493c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1494c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1495c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1496c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1497fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1498fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 149973322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 150073322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 150173322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 15035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1504f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 150573322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 15065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 15085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 150973322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 15105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 15115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 15125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 15135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 15155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 15165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 15175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1518f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 15195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 15215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1522f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1524f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 15255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 15265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 15275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1530213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 153173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1532213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 153373322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 153473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1535f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1536213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 153773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 153873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 153973322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1540213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 154173322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 154273322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 154373322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 154473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 154573322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 154673322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 154773322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 154873322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1549213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 155073322924127c873c13101b705dd823f5539ffa5fSteve Naroff 155173322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 155273322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1553f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 155473322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1555f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 155673322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 155773322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 155873322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 155973322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 156073322924127c873c13101b705dd823f5539ffa5fSteve Naroff 15619cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas GregorQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 15629cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 15639cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 15649cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor DependentSizedExtVectorType *New = 15659cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor new (*this,8) DependentSizedExtVectorType(vecType, QualType(), 15669cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SizeExpr, AttrLoc); 15679cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 15689cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor DependentSizedExtVectorTypes.push_back(New); 15699cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 15709cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 15719cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 15729cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 157372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 15745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 157572564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy) { 15765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 15775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 157972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType::Profile(ID, ResultTy); 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 158272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionNoProtoType *FT = 158372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 15845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 15855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 15875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 158872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy)); 15895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 159172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 159272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1593f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 159672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *New =new(*this,8)FunctionNoProtoType(ResultTy,Canonical); 15975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 159872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 15995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 16005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 16035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 160461710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1605971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1606465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1607465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 1608465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl const QualType *ExArray) { 16095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 161272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1613465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1614465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs, ExArray); 16155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 161772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionProtoType *FTP = 161872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1620465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1621465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 16225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 1623465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl if (hasExceptionSpec) 1624465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl isCanonical = false; 16255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 16265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 16275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 16285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1630465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 16325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1636f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 1637465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1638f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1639beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 1640bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl isVariadic, TypeQuals); 1641465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 16425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 164372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 164472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1645f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1647465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 164872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1649465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1650465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 165172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *FTP = 1652465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1653465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 1654465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs*sizeof(QualType), 8); 165572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1656465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1657465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl ExArray, NumExs, Canonical); 16585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 165972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 16615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16632ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 16642ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 16654b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 16661e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 16672ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 16682ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 16691e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 16702ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1671fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1672fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 1673fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 16742ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 167549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1676c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1677566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1678566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1679f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1680f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 1681566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1682566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1683566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1684566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1685f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1686f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 16874b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 168849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 16892ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 169049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 16914b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 169249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 16932ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 16942ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 16955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 16965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 16975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 16985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 16995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1700f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 170172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Decl->TypeForDecl = new(*this,8) TypedefType(Type::Typedef, Decl, Canonical); 17025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 17035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 17045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1706a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 17073536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 17083b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel DunbarQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl) { 17093536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 17103536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 17113b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar ObjCInterfaceDecl *OID = const_cast<ObjCInterfaceDecl*>(Decl); 17123b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar Decl->TypeForDecl = new(*this,8) ObjCInterfaceType(Type::ObjCInterface, OID); 17133536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 17143536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 17153536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 17163536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1717fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 171876e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// parameter or parameter pack with the given depth, index, and (optionally) 171976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 1720fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas GregorQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 172176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1722fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1723fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 172476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1725fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 1726fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType *TypeParm 1727fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1728fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1729fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1730fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1731fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 173276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 173376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 173476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack, 173576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson Name, Canon); 173676e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 173776e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack); 1738fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1739fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1740fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1741fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1742fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1743fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1744fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 174555f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorQualType 17467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 17477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 17487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 17497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 175040808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor if (!Canon.isNull()) 175140808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor Canon = getCanonicalType(Canon); 1752fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 175355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor llvm::FoldingSetNodeID ID; 17547532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType::Profile(ID, Template, Args, NumArgs); 175540808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 175655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void *InsertPos = 0; 17577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType *Spec 17587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 175955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 176055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (Spec) 176155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 176255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 17637532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *Mem = Allocate((sizeof(TemplateSpecializationType) + 176440808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 176540808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 8); 17667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor Spec = new (Mem) TemplateSpecializationType(Template, Args, NumArgs, Canon); 176755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 17687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 176955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 177055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 177155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 177255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1773e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas GregorQualType 1774ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1775e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1776e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1777ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1778e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1779e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 1780e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameType *T 1781e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1782e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1783e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1784e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1785ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, 1786ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1787e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1788e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1789e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1790e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1791e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1792d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1793d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1794d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1795d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1796d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1797d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1798d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1799d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1800d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1801d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1802d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1803d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1804d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1805d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1806d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 1807d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType *T 1808d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1809d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1810d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1811d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1812d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1813d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1814d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 1815d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1816d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1817d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 18181734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorQualType 18191734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorASTContext::getTypenameType(NestedNameSpecifier *NNS, 18201734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 18211734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 18221734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 18231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 18251734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 18261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 18271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 18281734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 18291734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = CanonType->getAsTemplateSpecializationType(); 18301734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 18311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 18321734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 18331734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18341734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18351734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18361734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 18371734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 18381734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18391734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 18401734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType *T 18411734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 18421734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 18431734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 18441734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18451734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 18461734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 18471734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 18481734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 18491734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 18501734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 185188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 185288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 185388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 185488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 18552e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 185688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 185788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 185888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 185988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 186088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 186188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 186288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 186388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 186488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 186588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 186688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 186788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 186888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 186988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1870d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 1871d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 187214108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 1873d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCProtocolDecl **Protocols, 1874d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 187514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (InterfaceT.isNull()) 1876de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InterfaceT = ObjCBuiltinIdTy; 187714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 1878d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // Sort the protocol list alphabetically to canonicalize it. 1879d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (NumProtocols) 1880d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff SortAndUniqueProtocols(Protocols, NumProtocols); 1881d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1882d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 188314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 1884d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1885d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 1886d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 1887d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1888d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QT, 0); 1889d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1890d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // No Match; 1891d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerType *QType = 189214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff new (*this,8) ObjCObjectPointerType(InterfaceT, Protocols, NumProtocols); 1893d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1894d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 1895d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 1896d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 1897d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 189888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1899065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1900065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1901a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1902a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 190388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 190488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 190588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 19064b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1907b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 19084b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 19094b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1910a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1911a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 19124b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 19134b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 19144b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1915a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1916f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 1917566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek 19184b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1919a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 19204b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 19214b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 19224b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 192372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 192472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 19259752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 19269752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 19279752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 192872564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 1929dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 1930dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor if (tofExpr->isTypeDependent()) 1931dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor toe = new (*this, 8) TypeOfExprType(tofExpr); 1932dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor else { 1933dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 1934dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor toe = new (*this,8) TypeOfExprType(tofExpr, Canonical); 1935dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 19369752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 19379752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1938d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1939d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 19409752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 19419752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 19429752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 19439752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 19449752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1945d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1946f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1947f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 19489752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 19499752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1950d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1951d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 195260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 195360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 195460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 1955a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 1956a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 1957a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson 195860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 195960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 196060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 196160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 196260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 196360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 196460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 196560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 196660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 196760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 196860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 196960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 197060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 197160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 197260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 197360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 197460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 197560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 197660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 197760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 197860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 197960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 198060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 198160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 198260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 198360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 1984395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 1985395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 1986395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 1987395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// an issue. This doesn't effect the type checker, since it operates 1988395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 1989395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 1990dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 1991dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor if (e->isTypeDependent()) // FIXME: canonicalize the expression 1992563a03b1338d31c2462def43253a722bc885d384Anders Carlsson dt = new (*this, 8) DecltypeType(e, DependentTy); 1993dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor else { 1994dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 1995563a03b1338d31c2462def43253a722bc885d384Anders Carlsson dt = new (*this, 8) DecltypeType(e, T, getCanonicalType(T)); 1996dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 1997395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 1998395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 1999395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2000395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 20015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 20025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 20035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 2004d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 20052ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 20065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 20075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 20095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 20105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 20115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 2012b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 20135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 20145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 201564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 201664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 201764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 201864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 201964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 202064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 202164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 202264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 202364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 202464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 202564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 202664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 202764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 202864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 20298b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 20308b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 20318b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2032b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 20338b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 20348b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2035e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2036e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2037e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2038e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 203977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 204077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 204177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 204277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 204377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 204477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 204577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 204677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 2047c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2048c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 2049c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 2050c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 2051c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2052c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 2053c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 2054c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2055c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 2056c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 2057c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2058c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2059c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 2060c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 2061c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 2062c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2063c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2064c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 2065c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 2066c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 2067c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 2068c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 2069c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2070898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 20717e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getDependentSizedArrayType(NewEltTy, 20727e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getSizeExpr(), 2073898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 20747e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getIndexTypeQualifier(), 20757e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange()); 2076898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2077c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 20787e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getVariableArrayType(NewEltTy, 20797e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getSizeExpr(), 2080c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 20817e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getIndexTypeQualifier(), 20827e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange()); 2083c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2084c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 20857da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas GregorDecl *ASTContext::getCanonicalDecl(Decl *D) { 2086c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor if (!D) 2087c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor return 0; 2088c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor 20897da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (TagDecl *Tag = dyn_cast<TagDecl>(D)) { 20907da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor QualType T = getTagDeclType(Tag); 20917da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return cast<TagDecl>(cast<TagType>(T.getTypePtr()->CanonicalType) 20927da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor ->getDecl()); 20937da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 20947da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 20957da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (ClassTemplateDecl *Template = dyn_cast<ClassTemplateDecl>(D)) { 20967da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Template->getPreviousDeclaration()) 20977da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Template = Template->getPreviousDeclaration(); 20987da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return Template; 20997da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 21007da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 21017da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (const FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) { 21027da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Function->getPreviousDeclaration()) 21037da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Function = Function->getPreviousDeclaration(); 21047da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return const_cast<FunctionDecl *>(Function); 21057da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 21067da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 2107127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(D)) { 2108127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor while (FunTmpl->getPreviousDeclaration()) 2109127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor FunTmpl = FunTmpl->getPreviousDeclaration(); 2110127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor return FunTmpl; 2111127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor } 2112127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor 21137da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (const VarDecl *Var = dyn_cast<VarDecl>(D)) { 21147da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Var->getPreviousDeclaration()) 21157da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Var = Var->getPreviousDeclaration(); 21167da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return const_cast<VarDecl *>(Var); 21177da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 21187da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 21197da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return D; 21207da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor} 21217da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 212225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 212325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 212425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 212525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 21267da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return TemplateName(cast<TemplateDecl>(getCanonicalDecl(Template))); 212725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 212825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 212925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 213025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 213125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 213225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 2133d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2134d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 2135d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (!NNS) 2136d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2137d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2138d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2139d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2140d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 2141d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 2142d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2143d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2144d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2145d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2146d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2147d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2148d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2149d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2150d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2151d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2152d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 2153d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *Prefix = 0; 2154d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2155d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: This isn't the right check! 2156d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T->isDependentType()) 2157d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Prefix = getCanonicalNestedNameSpecifier(NNS->getPrefix()); 2158d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2159d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, Prefix, 2160d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2161d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2162d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2163d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2164d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2165d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2166d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2167d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2168d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2169d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2170d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2171d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2172d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2173c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2174c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2175c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2176c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 2177c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2178c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2179c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2180c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2181c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2182c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 2183c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 2184c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2185f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Make sure to look through type qualifiers (like ExtQuals) for the negative 2186c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 2187c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 2188c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 2189c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 2190c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2191c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 2192c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2193c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 2194c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2195c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2196c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 2197c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 2198c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 2199c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 2200c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 2201c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2202f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Rip through ExtQualType's and typedefs to get to a concrete type. 2203c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 2204f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(Ty)) { 2205f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian AddrSpace = EXTQT->getAddressSpace(); 2206f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Ty = EXTQT->getBaseType(); 2207c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 2208c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 2209c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 2210c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 2211c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 2212c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 2213c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2214c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2215c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2216c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2217c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 2218c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 2219c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 2220c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2221c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2222c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2223c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2224c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 2225c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 2226c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 2227f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian NewEltTy = getAddrSpaceQualType(NewEltTy, AddrSpace); 2228c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 2229c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2230c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2231c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2232c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 2233c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 2234c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2235c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2236c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 22377e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor IAT->getIndexTypeQualifier())); 2238898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2239898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 2240898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2241898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 2242898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 2243898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 2244898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 22457e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getIndexTypeQualifier(), 22467e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 2247c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2248c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 22497e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 22507e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getSizeExpr(), 2251c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 22527e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getIndexTypeQualifier(), 22537e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 225477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 225577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 225677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2257e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2258e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2259e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2260e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2261e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2262e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2263e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2264c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2265c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2266c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2267c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2268c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2269c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 2270e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2271c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2272e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2273e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 2274c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 2275e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2276e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2277d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 22786183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 22796183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 22806183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 22816183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 22826183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 22836183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 22846183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 22856183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 22865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 22875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2288a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2289ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 22905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2291a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2292d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 2293ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 2294a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 22955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 22965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 22975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 22985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2301716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 2302716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 2303716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2304716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 23051361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 23061361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 23071361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 23081361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 23091361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2310716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2311f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2312f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2313f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2314f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2315f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 23161361b11066239ea15764a2a844405352d87296b3Chris Lattner 23171361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 23181361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 23191361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 23201361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 23211361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 23221361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 23235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 23277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 23287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 23297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 2330a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2331a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2332a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 2333a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2334a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2335fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2336a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2337fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2338fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 23395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2341f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2342f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2343f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2344f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2345f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 2346f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2347f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 2348f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2349a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2350a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2351a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2352f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2353f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2354f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2355f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2356f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2357f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2358f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 2359f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 2360f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 23611b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 2362f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 2363f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2364f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 23657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 23667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2367f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 23687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 23697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 23707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 23717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2372f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 23737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 23747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2375f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 23767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 23777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2378f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 23797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 23807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2381f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 23827cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 23837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2384f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 23852df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 23862df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 23872df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2388f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2389f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2390f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 23917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 23927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 23937cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 23947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2395f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2396f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 23977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 23985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2399f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2400f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 24015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 24037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 24045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 24067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 24077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 24087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 24097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 24107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 24117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 24127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 24137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 24147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 24157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 24167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 24177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 24187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 24197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 24207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 24217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 24227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 24237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 24247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 24255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 24277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 24287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 24297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 24305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 243171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 243271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 243371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 243471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 24356c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 243639ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2437df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2438f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 243971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 244071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 244171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 2442f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2443f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 244471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 2445f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 244671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 2447f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 244871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 244944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 245044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 245144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 245244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 245344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 24544afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 245517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 245644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 245744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 245844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 245971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 246071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 246171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 24628467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2463b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2464319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 2465319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2466319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2467319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2468319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2469319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2470bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 2471bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 2472bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 247344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 247444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 247544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 247644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2477bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2478bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2479de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2480bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2481bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2482bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2483bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 2484bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 248544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 248644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 248744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 248844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 248944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 24904afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 249117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 249244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 2493bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 249444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2495bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 2496bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2497bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2498bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2499bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2500319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 2501319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2502319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2503319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2504319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2505319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2506e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2507e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 25082d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2509e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2510bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2511bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 251285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 251385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 251485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 251585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2516a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 251733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2518a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 251998be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 252033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 252133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 252233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 252398be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 252433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 252533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 252698be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 252798be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 252833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 252933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2530a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 253133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 2532c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2533e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2534c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2535ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2536a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 253733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 25380d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 253933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 254033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 254133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 254233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 254398be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 254433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 254533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 254633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 254789951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 254889951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 254989951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 255089951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 2551a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 255233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 255333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 255433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 255533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 255633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 255733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 255833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 255933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 256089951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 256189951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 256289951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 25634306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 25644306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 2565ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 2566ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 2567ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 2568bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 2569ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2570ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 2571ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2572ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 257333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 25744306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 25750d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 257633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2577a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 257833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 257933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 258033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2581c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 258283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2583c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2584c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 258583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 258683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 258783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 258883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 258983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 259083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 259183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 259283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 259383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 259483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 259583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 259683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 259783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 259883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 259983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 260083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 260183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 260283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 260383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 260483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 260583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 2606c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2607c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2608e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2609c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2610c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2611c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2612c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2613c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2614c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 2615c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 2616c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2617c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 261817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 2619653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2620c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2621c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2622c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2623c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2624c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2625c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2626c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2627c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2628c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2629c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 263061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2631c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 263217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 2633653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2634c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2635c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2636c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2637c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2638c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2639c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2640c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2641c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2642c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2643c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2644c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2645c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2646c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2647c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 2648c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2649c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 2650090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 2651090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 2652153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 2653090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 2654090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 2655c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2656c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 2657c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 2658c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2659c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 2660c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 2661c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 2662c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 2663c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2664c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2665c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2666c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 2667c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 2668c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 2669c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 2670c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2671090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2672090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 2673090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 2674c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2675c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 2676077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 2677c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2678c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2679c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2680c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 2681077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 2682c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2683c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2684c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 2685c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2686c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 268739f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 2688c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2689c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2690c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 2691c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 2692c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2693a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 2694a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 2695c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian/// 'l' or 'L' , but not always. For typedefs, we need to use 2696a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2697a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 2698a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 2699a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 2700a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 2701c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 2702c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2703a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 2704c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian else 2705c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 2706c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2707a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 2708a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2709a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2710a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 2711a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 27127d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 2713153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 271482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 271582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 271682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 271782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 27185b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 27195b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 272082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 272182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 27228b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 2723153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 27248b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 27258b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 27268b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 27279a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 27288b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 27298b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 27308b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 27318b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 273282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 273382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 273482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 2735153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 2736090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 27376ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 2738e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 2739ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 2740ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 2741ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 2742ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 2743ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner default: assert(0 && "Unhandled builtin type kind"); 2744ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 2745ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 2746ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 2747ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 2748ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 2749ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 2750ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULong: 275172696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 2752ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 275372696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 2754ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 2755ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 2756ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 2757ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 2758ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 2759ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 2760ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Long: 2761ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner encoding = 2762ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 2763ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 2764ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 2765ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 2766ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 2767ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 2768ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 276943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2770ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2771ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 2772ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2773ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2774ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2775ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ComplexType *CT = T->getAsComplexType()) { 2776c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 2777c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 2778c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 2779ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2780ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2781ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2782ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const PointerType *PT = T->getAsPointerType()) { 278385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2784a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2785a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2786a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2787a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2788a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 2789a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(T.getTypePtr())) { 2790a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2791a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2792a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2793a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2794a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2795a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 2796a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 2797a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian while (P->getAsPointerType()) 2798a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian P = P->getAsPointerType()->getPointeeType(); 2799a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 2800a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2801a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2802a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2803a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2804a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 2805a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 2806a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 2807a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 2808a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 2809a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 2810a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2811a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 2812a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 2813a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2814a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 281514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (isObjCSelType(PointeeTy)) { 28168baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 28178baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2818c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 281985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 282085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 282185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 282285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2823e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 282485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 282585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 282685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 282785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 282885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 282985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2830a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2831a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2832ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 283343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2834ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2835ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2836ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2837ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 2838ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 2839ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 2840559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 2841559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 2842559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 2843559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 2844559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2845559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2846559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 2847559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 284885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2849559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2850559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 2851559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 2852559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 2853559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 2854559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 2855559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 285685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2857559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2858559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2859559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 2860559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 2861ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2862ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2863ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2864ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->getAsFunctionType()) { 2865c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 2866ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2867ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2868ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2869ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const RecordType *RTy = T->getAsRecordType()) { 287082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2871d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2872502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2873502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2874502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2875502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2876502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2877502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 28780d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 28797d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 288017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 288117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 288244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 288343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2884d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 288544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2886d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2887d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2888d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2889d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 289043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 289143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 289243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2893d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2894a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2895a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2896a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 289743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2898d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 28997d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 29006de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2901d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 2902ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2903ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2904ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2905ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 29068b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 29078b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 29088b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 29098b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2910ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2911ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2912ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2913ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 291421a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 2915ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2916ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2917ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2918ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isObjCInterfaceType()) { 291943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 292043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 292143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 292243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 292343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 292443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 2925f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 292643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 2927f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 292843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 292943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 293043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 293143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 293243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 293343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 293443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 293543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 2936ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 293743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2938ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2939ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ObjCObjectPointerType *OPT = T->getAsObjCObjectPointerType()) { 294014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 294114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 294214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 2943ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2944ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2945ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCClassType()) { 294614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 294714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 2948ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2949ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2950ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 295114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff getObjCEncodingForTypeImpl(getObjCIdType(), S, 295214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 295314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 295414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 295514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 295614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 295714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *QIDT = T->getAsObjCQualifiedIdType(); 295814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 295914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff for (ObjCObjectPointerType::qual_iterator I = QIDT->qual_begin(), 296014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff E = QIDT->qual_end(); I != E; ++I) { 296114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 296214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 296314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 296414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 296514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 296614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 296714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 2968ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2969ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2970ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 2971ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 2972ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 2973ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 2974ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // We encode the underlying type which comes out as 2975ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 2976ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 2977ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner getObjCEncodingForTypeImpl(PointeeTy, S, 2978ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner false, ExpandPointedToStructures, 2979ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 298014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 298114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 2982ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2983ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 2984ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD || EncodingProperty) { 2985ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner const ObjCInterfaceType *OIT = OPT->getInterfaceType(); 2986ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner ObjCInterfaceDecl *OI = OIT->getDecl(); 2987ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 2988ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += OI->getNameAsCString(); 2989ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner for (ObjCInterfaceType::qual_iterator I = OIT->qual_begin(), 2990ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner E = OIT->qual_end(); I != E; ++I) { 2991ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 2992ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 2993ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 2994ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2995ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 2996ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2997ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2998ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2999ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3000ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 300185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 300285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 3003a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3004ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3005ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3006ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3007ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3008ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3009ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3010ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3011ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3012ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3013ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3014ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3015ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3016ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3017ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3018ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3019ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3020b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 3021b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3022b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3023b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3024b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3025ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3026de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 30277e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 30287e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3029ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 3030319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 3031319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3032319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 3033319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 3034319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 3035319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 3036b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3037b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 3038b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 3039c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 3040c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3041b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 3042c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 3043c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3044b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 3045b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3046b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3047ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3048a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3049390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3050390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3051ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3052de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 30538baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 30548baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3055a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 3056a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 30572198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 30582198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 3059a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 30602198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 30612198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 30627532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 30637532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 30647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 30657532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 30667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 30677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 30687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 30697532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30707532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 30717532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 30727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 30737532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 30747532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 30757532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 30767532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 30777532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30787532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 30797532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 30807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30817532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 30827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 30837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 30847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 30857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(NNS->isDependent() && "Nested name specifier must be dependent"); 30867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 30887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 30897532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30907532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 30917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 30927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 30937532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 30957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 30967532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 30977532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 30987532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 30997532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 31007532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 31017532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 31027532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 31037532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 31047532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 31057532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 31067532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 31077532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 31087532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3109b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3110d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3111d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3112d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 3113b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 3114b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 3115b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3116b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3117b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3118b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3119b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3120b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3121b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3122b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3123b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3124b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3125b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3126b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 3127b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3128b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3129b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3130b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3131b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3132b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3133fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3134fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3135fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3136f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 3137fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3138fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3139fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3140fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 314140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3142fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3143fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 3144fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 3145fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3146fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 31474fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 31484fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 31494fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 31504fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz JahanianQualType::GCAttrTypes ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 3151b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttrs = QualType::GCNone; 31524fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 31534fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3154b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 31554fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 3156a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // (or pointers to them) be treated as though they were declared 3157a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 3158a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (GCAttrs == QualType::GCNone) { 3159f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff if (Ty->isObjCObjectPointerType()) 3160a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian GCAttrs = QualType::Strong; 3161a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 3162a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian return getObjCGCAttrKind(Ty->getAsPointerType()->getPointeeType()); 3163a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3164c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3165c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3166f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 3167c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian return QualType::GCNone; 31684fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3169b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 31704fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 31714fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 31726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 31736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 31746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3175770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 31766ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 31776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 31786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 31796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 31806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 31816ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 318261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 31836ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 31846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 31853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 31866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 31876ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 31886ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 318914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff/// FIXME: Move the following to ObjCObjectPointerType/ObjCInterfaceType. 319014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 319114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *RHSOPT) { 3192de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 3193de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 319414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 319514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 319614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 319714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 3198de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff if (!LHS || !RHS) { 3199de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // We have qualified builtin types. 3200de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // Both the right and left sides have qualifiers. 3201de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff for (ObjCObjectPointerType::qual_iterator I = LHSOPT->qual_begin(), 3202de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff E = LHSOPT->qual_end(); I != E; ++I) { 3203de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff bool RHSImplementsProtocol = false; 3204de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 3205de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 3206de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 3207de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 3208de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff for (ObjCObjectPointerType::qual_iterator J = RHSOPT->qual_begin(), 3209de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff E = RHSOPT->qual_end(); J != E; ++J) { 32108f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*J)->lookupProtocolNamed((*I)->getIdentifier())) { 3211de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff RHSImplementsProtocol = true; 32128f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 32138f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 3214de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 3215de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff if (!RHSImplementsProtocol) 3216de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 3217de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 3218de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // The RHS implements all protocols listed on the LHS. 3219de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 3220de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 322114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 322214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 322314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 32243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 32253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 32266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 32276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 32286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 32296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 32306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 32316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 32326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 32336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 32346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 32356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 32366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 32376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 32386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 32396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 32406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 32416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 32426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 32436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 32446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 324591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // All LHS protocols must have a presence on the RHS. 324691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff assert(LHSP->qual_begin() != LHSP->qual_end() && "Empty LHS protocol list?"); 324791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 324891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(), 324991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPE = LHSP->qual_end(); 325091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 325191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 325291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 325391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 325491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 325591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(), 325691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSPE = RHSP->qual_end(); 32578f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 32588f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 325991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 32608f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 32618f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 326291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 326391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 326491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 326591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 326691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 326791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 326891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 32696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 32706ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 3271389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 3272389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 327314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *LHSOPT = LHS->getAsObjCObjectPointerType(); 327414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *RHSOPT = RHS->getAsObjCObjectPointerType(); 3275389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 327614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 3277389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 327814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 327914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 328014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 3281389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 3282389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 3283ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 3284ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 3285ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 3286ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 32873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 32883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 32893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 32903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32913d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 32923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 32933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 329472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 329572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 32963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 32973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 32983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 33003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 33013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 330261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 330361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 330461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 330561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 33063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 3308465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 3309465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 33103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 33113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 33123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 33143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 33153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 33163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 33183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 33193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 33203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33217fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 33227fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 33237fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 33243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 33253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 33263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 33273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 33283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 33293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 33303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 33313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 333261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 333361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 333461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 333561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 33363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 33383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 33393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 33407fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 33413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 33443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 33453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 334672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 33473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 3348465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 33493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 33503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 33513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 33523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 33533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 33543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 33553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 33563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 33573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 33583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 33593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 33603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 33613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 33643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 33653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 33667fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 33677fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 33683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 33713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 337272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return getFunctionNoProtoType(retType); 33733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 33743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33753d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 337643d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 337743d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 337843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 33797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 33807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 33813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 33823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 33837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 33847c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 33853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 3386c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 33873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 3388c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 33893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 33913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 33923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3393f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 33943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 33953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 33963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 33985a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Note that we handle extended qualifiers later, in the 33995a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // case for ExtQualType. 34005a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers()) 34013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 34023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3403852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 3404852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 3405f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 34061adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 34071adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 34081adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 34091adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 34104c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 341107d258756dc856c6987c394a0972884e6ed46765Eli Friedman // Strip off objc_gc attributes off the top level so they can be merged. 341207d258756dc856c6987c394a0972884e6ed46765Eli Friedman // This is a complete mess, but the attribute itself doesn't make much sense. 3413585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (RHSClass == Type::ExtQual) { 341407d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = RHSCan.getObjCGCAttr(); 341507d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 341686f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian QualType::GCAttrTypes GCLHSAttr = LHSCan.getObjCGCAttr(); 34178df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. 341886f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 341986f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 342086f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 342186f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCLHSAttr != GCAttr) || 342286f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCLHSAttr != GCAttr && 342314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff !LHSCan->isObjCObjectPointerType())) 34248df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 34258df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian 342607d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS = QualType(cast<ExtQualType>(RHS.getDesugaredType())->getBaseType(), 342707d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS.getCVRQualifiers()); 342807d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 34298df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 34308df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 34318df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 34328df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 34338df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 34348df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 343507d258756dc856c6987c394a0972884e6ed46765Eli Friedman return Result; 343607d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3437585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3438585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (LHSClass == Type::ExtQual) { 343907d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = LHSCan.getObjCGCAttr(); 344007d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 34418df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian QualType::GCAttrTypes GCRHSAttr = RHSCan.getObjCGCAttr(); 34428df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. __strong 344386f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 344486f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 344586f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 344686f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCRHSAttr != GCAttr) || 344786f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCRHSAttr != GCAttr && 344814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff !RHSCan->isObjCObjectPointerType())) 34498df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 345086f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian 345107d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS = QualType(cast<ExtQualType>(LHS.getDesugaredType())->getBaseType(), 345207d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS.getCVRQualifiers()); 345307d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 34548df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 34558df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 34568df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 34578df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 34588df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 34598df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 3460354e53da656237e25518b3fafa3bf84de6e6f57eEli Friedman return Result; 346107d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3462585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3463585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian 34644c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 3465a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 3466a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 3467a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 3468a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 3469a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 3470213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 3471213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 3472213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 3473ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 3474b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 347514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // FIXME: Remove (ObjCObjectPointerType should obsolete this funny business). 3476b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 3477b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 34783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 34794e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 34804e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 34811adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 34821adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 34833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 34843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 34853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 3486bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 34873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 34883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 34893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 3490bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 34911adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 34923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 3493ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 34943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 34954a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 34961adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 349772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 349872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 349972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 350072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 350172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 350272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 350372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 350472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 35057c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 35067c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 350772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 350872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 350972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 351072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 351172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 351272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 351372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 351472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 351572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 351672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 351772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 351872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 35191adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 35203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 35213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 35223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 35233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 35243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 35253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 352607d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 352761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 352807d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 352961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 35303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 35313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 3532c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 3533c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 3534c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 3535c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 3536c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 3537c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3538c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 3539c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3540c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 3541c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3542c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 3543c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 3544c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 35451adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 35463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 35473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 35483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 35493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 35503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 35513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 35523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 35533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 35543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 35553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 355661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 355761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 355861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 355961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 35603bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 35613bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 35623bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 35633bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 35643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 35653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 356661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 356761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 356861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 356961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 35703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 35713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 35723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 35733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 35743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 35753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 35763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 35773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 35783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 35793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 35803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 35813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 35823bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 35833bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 35847e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 35857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 35863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 35871adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 35883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 358972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 359072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 35913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 35921adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 35933cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 35943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 359564cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 359664cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 359764cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 35983cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 35995a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 36003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 36013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 360261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 360361490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 36045fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 36055a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 36065a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 36075fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 36085fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 36095fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 36105fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 36115fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 36125fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 36133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 361461490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 361514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 361614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // FIXME: Incorporate tests from Sema::ObjCQualifiedIdTypesAreCompatible(). 361714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (LHS->isObjCQualifiedIdType() && RHS->isObjCQualifiedIdType()) 361814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return QualType(); 361914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 362014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (canAssignObjCInterfaces(LHS->getAsObjCObjectPointerType(), 362114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff RHS->getAsObjCObjectPointerType())) 362214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 362314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 3624bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 362514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 36265a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 36275a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 36285a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 36295a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ExtQual: 36305a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: ExtQual types can be compatible even if they're not 36315a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // identical! 36325a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 36335a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // First attempt at an implementation, but I'm not really sure it's 36345a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // right... 36355a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#if 0 36365a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* LQual = cast<ExtQualType>(LHSCan); 36375a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* RQual = cast<ExtQualType>(RHSCan); 36385a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LQual->getAddressSpace() != RQual->getAddressSpace() || 36395a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LQual->getObjCGCAttr() != RQual->getObjCGCAttr()) 36405a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 36415a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman QualType LHSBase, RHSBase, ResultType, ResCanUnqual; 36425a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LHSBase = QualType(LQual->getBaseType(), 0); 36435a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman RHSBase = QualType(RQual->getBaseType(), 0); 36445a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = mergeTypes(LHSBase, RHSBase); 36455a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (ResultType.isNull()) return QualType(); 36465a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResCanUnqual = getCanonicalType(ResultType).getUnqualifiedType(); 36475a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getUnqualifiedType() == ResCanUnqual) 36485a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return LHS; 36495a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (RHSCan.getUnqualifiedType() == ResCanUnqual) 36505a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return RHS; 36515a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getAddrSpaceQualType(ResultType, LQual->getAddressSpace()); 36525a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getObjCGCQualType(ResultType, LQual->getObjCGCAttr()); 36535a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType.setCVRQualifiers(LHSCan.getCVRQualifiers()); 36545a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return ResultType; 36555a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#endif 36567532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 36577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 36587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 36597532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 3660ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 366172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 366272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 3663ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 36647192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 36655426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 3666ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 3667ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 366888054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 3669ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 3670ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 3671ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 3672f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 3673f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 3674f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 3675f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 3676ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 3677ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3678ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3679ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 3680ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 3681ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 3682ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 3683ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 3684ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 3685ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 3686ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 3687ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 3688ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 3689ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 3690ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 3691ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 3692ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 3693ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 3694ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 3695ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 3696ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 36972df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 36982df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 3699ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 3700ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 3701ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 3702ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 3703ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3704ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 37052cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 37062cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 37072cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 370886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 370986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 371086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 371186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 371286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 371386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 371486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 371586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 371686df27bbdbb98c39ec2184695c0561209f91beddChris Lattnerstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 371786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 371886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 371986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 372086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 372186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 372286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 372386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 372486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 372586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 372686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 372786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 372886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 372986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 373086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 373186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 373286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 373386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 373486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 373586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 373686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 373786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 373886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 373986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 374086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 374186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 374286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 374386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 374486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 374586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 374686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 374786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 374886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 374986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 375086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 375186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 375286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 375386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 375486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 375586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 375686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 375786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 375886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 375986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 376086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 376186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 376286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 376386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 376486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 376586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 376686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 376786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 376886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 376986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 377086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 377186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 377286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 377386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 377486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 377586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 377686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 377786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 377886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 377986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 378086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 378186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 378286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 378386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 378486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 378586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 378686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 378786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 378886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 378986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 379086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 379186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 379286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 379386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 379486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 379586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 379686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 379786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 379886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 379986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 380086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 380186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 380286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 380386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 380486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 380586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 380686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 380786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 380886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 380986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 381086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 381186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 381286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 381386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 381486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 381586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 381686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 381786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 381886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 381986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 382086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 382186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 382286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 382386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 382486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 382586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 382686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 382786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 382886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 382986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 383086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 383186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 383286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 383386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 383486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 383586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 383686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 383786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 383886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'P': { 3839c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 3840c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 384186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = ASTContext::GE_Missing_FILE; 384286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 3843c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor } else { 3844c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor break; 384586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 384686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 384786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 384886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 384986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 385086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 385186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 385286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 385386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 385486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 385586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 385686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 385786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 385886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 385986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 386086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 386186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 386286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 386386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 386486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Type.getQualifiedType(QualType::Const); 386586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 386686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 386786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 386886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 386986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 387086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 387186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 387286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 387386df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 387486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 387586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 387686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 387786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 387886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 387986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 388086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 388186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 388286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 388386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 388486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 388586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 388686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 388786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 388886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 388986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 389086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 389186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 389286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 389386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 389486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 389586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 389686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 389786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 389886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 389986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 390086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 390186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 390286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 390386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 3904