ASTContext.cpp revision 5e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 1549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 16980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 17aaba5e346dffdbad5d1c42765a89e4a7afb0da67Douglas Gregor#include "clang/AST/DeclTemplate.h" 18e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 192cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor#include "clang/AST/ExternalASTSource.h" 2019cc4abea06a9b49e0e16a50d335c064cd723572Anders Carlsson#include "clang/AST/RecordLayout.h" 211b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner#include "clang/Basic/Builtins.h" 22a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 2485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 256fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 26557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner#include "llvm/Support/MemoryBuffer.h" 2729445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson#include "RecordLayoutBuilder.h" 2829445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3561710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 37e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 381b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 391b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner bool FreeMem, unsigned size_reserve) : 40ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 41c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), 42c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor SourceMgr(SM), LangOpts(LOpts), 432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments(false), FreeMemory(FreeMem), Target(t), 442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 45e4f2142d00fa5fdb580c4e2413da91882d955381Chris Lattner BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 46e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 47e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 4814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 49e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 50e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 544b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 57b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 65b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 66b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 67b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 68b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 69b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 75b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 76ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 771ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 781ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 791ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNSEnd = NestedNameSpecifiers.end(); 80e7dcd782df0e1cc3a63e429a866098e69db39153Douglas Gregor NNS != NNSEnd; 811ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 821ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 83ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 84ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 85ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 86ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 87b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 902cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid 912cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 922cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 932cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 942cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 99dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 100dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) 0, 101dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 102dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 103dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 104dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 105c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 108dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 111dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 112dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 113dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 115dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 116dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 117dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 118dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 119dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 120dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 121dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1222cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1232cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1242cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1252cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1262cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 131f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Types.push_back((R = QualType(new (*this,8) BuiltinType(K),0)).getTypePtr()); 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 14315b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 16564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1662df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1672df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1682df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1692df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1703a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1713a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1723a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1733a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 17464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 175f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 176f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 177f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 178f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 179f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 180f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 181f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 182f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 183f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 184f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 1858e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 186898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 187898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 188898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 189898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 190898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 191898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 192898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 193898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 1948e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 195e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // Placeholder type for C++0x auto declarations whose real type has 196e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 197e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 198e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2038e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2047e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 20514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 206de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 207de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 208de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 209de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 210de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // Builtin types for 'id' and 'Class'. 211de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 212de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 21314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 214a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 21533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 21633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 21733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2186e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2196e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2206e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 2242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor class BeforeInTranslationUnit 2252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 2262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 2272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 2292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 2302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 2322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 2332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 2342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 2352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 2362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 2382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 2402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 2422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 2442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 2452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 2462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorstatic bool 2472e22253e03e175144aeb9d13350a12fd83f858beDouglas GregorisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 2482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 2492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *BufferStart 2502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 2512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 2522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 2532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 2552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 2582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 2592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 2612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 2622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 2642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 2652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 2672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// it has one. 2682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 2692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 2702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 2712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 2732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 2742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor llvm::DenseMap<const Decl *, std::string>::iterator Pos 2752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 2762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 2772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 2782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If we have an external AST source and have not yet loaded comments from 2802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 2812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 2822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 2832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 2842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 2862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 2872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 2882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 2902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 2912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If there are no comments anywhere, we won't find anything. 2932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 2942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 2952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 2972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 2982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 2992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 3002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 3032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 3042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = std::lower_bound(Comments.begin(), Comments.end(), 3052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 3062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 3072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 3092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 3102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DeclStartDecomp 3112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 3122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *FileBufferStart 3132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 3142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 3162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 3172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 3182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 3192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 3222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 3232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 3252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 3262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 3272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 3282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 3292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + 3302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getFileOffset(LastComment->getBegin()), 3312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 3322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 3332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 3372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 3392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 3412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 3452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 3462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 3472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 3502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 3512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 3552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned DeclStartLine 3562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 3572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 3582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 3602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 3622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 3632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 3642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 3682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 3692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned ExpectedLine 3702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 3712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 3722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 3732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 3742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 3752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 3762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 3772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 3792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 3802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 3812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 3822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 3852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 3862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 3872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 3882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 3912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 3922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 3932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 3942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 3952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 3982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExpectedLine 3992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 4002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 4032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 4052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 4062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 4082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 4092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 4102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 4112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 4132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 4142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 4182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + 4192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getFileOffset(LastComment->getBegin()), 4202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 4232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 424464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 425464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 426464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 427a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 428b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 429b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 430b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 431b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 432b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 433b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 434b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 435b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 436b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 437b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 438b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 439b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 440b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 441af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// getDeclAlign - Return a conservative estimate of the alignment of the 442af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 443af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 444b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 445dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 446dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 44740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 448dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 449dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 450af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 451af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 45235366a67baa970c287c714c957cf78a4131cf60dTed Kremenek if (const ReferenceType* RT = T->getAsReferenceType()) { 4534cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 454f0930235ce58a91aa3b840bece9052f44d630536Anders Carlsson Align = Target.getPointerAlign(AS); 4554cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson } else if (!T->isIncompleteType() && !T->isFunctionType()) { 4564cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 457dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 458dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 459dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 460dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 461dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 462af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 463dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 464dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 465af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 466b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 467a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 468a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 469d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 4701d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 4715e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 4725e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 473a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 47472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 47572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 47618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 47772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 47872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 47918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 48072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 48172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 4825d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 4835d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 48418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 48518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 48618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 48718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 48818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 48972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 490fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 49118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 49218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 49318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 49418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 4957e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor case Type::ConstantArrayWithExpr: 4967e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor case Type::ConstantArrayWithoutExpr: 497fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 4981d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 499030d8846c7e520330007087e949f621989876e3aChris Lattner 50098be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 5019e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 502030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 503030d8846c7e520330007087e949f621989876e3aChris Lattner break; 5045c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 505213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 506030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 507030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 50898be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 5099e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 5104bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 5116fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 5126fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 5136fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 5146fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 515030d8846c7e520330007087e949f621989876e3aChris Lattner break; 516030d8846c7e520330007087e949f621989876e3aChris Lattner } 5175d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 5189e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 519a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 520692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 521d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 52218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 52318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 52418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 52518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 52618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 5276f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 5289e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 5299e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 5306f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 531692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 532692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 533692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 5346f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 5359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 5369e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 5376f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 53864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 53964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 54064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 54164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 542f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 543f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 544f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 545f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 546f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 547f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 548f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 549f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 550692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 5516f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 5529e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 5539e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 5546f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 555692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 5566f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 5579e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 5589e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 5596f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 560692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 5616f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 5629e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 5639e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 5646f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 565692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 5666f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 5679e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 5689e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 5696f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 570ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 571ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 572ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 573ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 574ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 5756f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 5769e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 5779e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 5786f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5796f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 5805426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 5815426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 5826f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5836f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 5849e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 5859e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 5866f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5876e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 5886e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 5896e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 5901590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 591a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 592bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 593f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 594f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 595f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 596f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 597736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 598f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 599f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 600f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian case Type::ExtQual: 60198be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 60298be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 603f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian return getTypeInfo(QualType(cast<ExtQualType>(T)->getBaseType(), 0)); 604d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 6055426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 606f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 6076f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 608485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 609485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 610485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 611485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 612485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 613485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 614f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 615f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 6165426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 617f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 618f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 619f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 6207c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 6217c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 6227ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 6235d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 6246f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 6256f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 626bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 627f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 6281cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // FIXME: This is ABI dependent. We use the Itanium C++ ABI. 6291cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // http://www.codesourcery.com/public/cxx-abi/abi.html#member-pointers 6301cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // If we ever want to support other ABIs this needs to be abstracted. 6311cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson 632f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 6331cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson std::pair<uint64_t, unsigned> PtrDiffInfo = 6341cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 6351cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 636f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 637f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 6381cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 6391cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 640f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 6415d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 6425d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 6435d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 6445d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 64598be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 6469e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 6475d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 6485d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 6495d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 65044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 6511d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 65244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 65344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 65444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 65544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 65644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 65772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 65872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 6591d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 6601d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 6611d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 6628389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 6638389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 6648389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 6658389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 6668389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 6671d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 6687176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 6697176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 6701d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 6717176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 6727176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 6737176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 674dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 675a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 6767532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 67718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 67818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 67940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 68018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = Aligned->getAlignment(); 68118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 68218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 68318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 6847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 6857176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 68618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 68718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 68818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 68918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 69018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 69118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 69218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 69318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 694395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 695395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 696395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 697395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 69818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 69918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 70018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 70118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 70218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(getCanonicalType(T) != T && 70318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 70418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 70518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 70618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 70718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 70818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 709d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 710464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 7119e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 712a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 713a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 71434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 71534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 71634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 71734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 71834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 71934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 7201eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 7211eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 7221eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (const ComplexType* CT = T->getAsComplexType()) 7231eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 7241eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 7251eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 7261eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 7271eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 72834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 72934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 73034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 731a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 732a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 733a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 734a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 735a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 736f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 737a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 738a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 739a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 740a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 741a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 742a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 743a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 744a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 745a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 746a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 747a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 748a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 7498e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 7508e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 7518e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 7528e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 7538e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 7548e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 7558e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 7568e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 7578e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 7588e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 7598e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 7608e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 7618e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 7628e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 7639820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 7649820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 76517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 76617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 7679820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 7689820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 7699820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 7709820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 7719820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 7729820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 7739820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 7749820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 7759820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 7769820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 7779820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 7789820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 7799820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 7809820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 78117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 78217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 7839820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 7849820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 7859820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 7869820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 7879820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 7889820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 7899820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 7909820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 7919820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 7929820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 7939820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 7949820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 7958e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 7968e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 79717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 79817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 7998e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8008e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8018e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8028e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 8038e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8048e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8058e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 8068e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8078e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8088e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8098e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) 8108e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian{ 8118e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 81217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 81317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8148e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8158e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8168e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8178e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 8188e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 8198e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8208e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8218e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 8228e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 8238e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8248e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8258e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8268e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8278a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 8288a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 8298a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 8308a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 8318a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 8328a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 8338a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 8348a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8358a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 8368a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 8378a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 8388a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 8398a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 8408a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 8418a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 8428a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8438a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 8448a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 8458a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 8468a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 8478a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 8488a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 8498a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8508a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 8518a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 8528a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 8538a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 8548a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 8558a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8568a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 857b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 858b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 859b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 860b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 861b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 86244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 863b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 864b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 865532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 866532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 86744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 868d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCContainerDecl *Key = 869d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 870d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 871d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 87244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 873453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 874453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 87529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson unsigned FieldCount = D->ivar_size(); 8768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 8778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian FieldCount += SynthCount; 878d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 879453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 880453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 881453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 8828e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 883453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 884453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 885453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 88629445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson const ASTRecordLayout *NewEntry = 88729445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 88829445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 88929445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 89044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 89144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 89244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 893b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 894b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 895b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 896b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 897b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 898b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 899b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 900b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 901b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 902b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 90388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 904464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 905464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 90698be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 9074b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 9084b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 9094bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 910464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 911ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 912ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 913ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 914464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 9154bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 91629445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson const ASTRecordLayout *NewEntry = 91729445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 918ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 91929445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 9205d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 921464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 922464175bba1318bef7905122e9fda20cff926df78Chris Lattner 923a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 924a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 925a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 926a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 927f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 928f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 929f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 930f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 931b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 932b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 933b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 934b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 935b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr = QualType::GCNone; 936b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 937b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 938b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 939b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 940b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 941b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getAddressSpace() == 0 && 942b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 943b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttr = EQT->getObjCGCAttr(); 944b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 945b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 946f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 947b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Check if we've already instantiated this type. 948ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 949b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 950ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 951f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 952b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 953b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 954ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 955ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 956ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 957b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (!TypeNode->isCanonical()) { 958f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Canonical = getAddrSpaceQualType(CanT, AddressSpace); 959ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 960b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 961f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 962f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 963ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 964b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 965b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 966f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 967ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 968b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 969ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 970ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 971b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 972b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr) { 973d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 974b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 975d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 976d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 9774027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 97835366a67baa970c287c714c957cf78a4131cf60dTed Kremenek QualType Pointee = T->getAsPointerType()->getPointeeType(); 97958f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 9804027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 9814027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 9824027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 9834027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 984b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 985b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 986b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 987b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 988b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned AddressSpace = 0; 989b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 990b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 991b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 992b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 993b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getObjCGCAttr() == QualType::GCNone && 994b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 995b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner AddressSpace = EQT->getAddressSpace(); 996b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 997b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 998d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 999d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check if we've already instantiated an gc qual'd type of this type. 1000d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian llvm::FoldingSetNodeID ID; 1001b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 1002d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian void *InsertPos = 0; 1003d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 1004b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 1005d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 1006d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // If the base type isn't canonical, this won't be a canonical type either, 1007d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // so fill in the canonical type field. 10085a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: Isn't this also not canonical if the base type is a array 10095a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // or pointer type? I can't find any documentation for objc_gc, though... 1010d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType Canonical; 1011d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (!T->isCanonical()) { 1012b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Canonical = getObjCGCQualType(CanT, GCAttr); 1013d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 1014b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 1015d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 1016d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1017d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 1018b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 1019b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 1020d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 1021d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Types.push_back(New); 1022b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 1023d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1024a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 10295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1041f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1045f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1047f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 10485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 10505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1053f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 1054f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 1055f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 1056f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 1057f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 1058f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 1059f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 1060f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 10615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 10685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 10735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 10755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 10765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1078f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 10795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1082f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1084f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10905618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 10915618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 10925618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1093296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1094296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 10955618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 10965618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 10975618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 10985618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 10995618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 11005618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 11015618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 11025618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 11035618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 1104296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 11055618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 11065618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 11075618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 11085618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 11095618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 11105618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 11115618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 11125618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1113f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11145618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 1115f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 11165618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 11175618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 11185618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 11195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 11205618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 11217c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 11227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 11237c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 11245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11307c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 11317c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 11337c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 11387c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 11397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 11407c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 11417c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 11427c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 11437c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11447c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 11457c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 11467c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *New = new (*this,8) LValueReferenceType(T, Canonical); 11477c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 11487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 11497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 11507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 11517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 11527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 11537c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 11547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 11557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 11567c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 11577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 11587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 11597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 11607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 11617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 11627c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 11637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 11647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 11657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 11667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 11677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 11687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 11697c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 11707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 11737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1174f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *New = new (*this,8) RValueReferenceType(T, Canonical); 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1183f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1184f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 1185f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 1186f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 1187f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1188f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1189f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1190f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1191f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1192f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1193f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1194f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1195f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1196f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1197f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1198f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1199f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1200f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1201f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1202f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1203f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1204f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1205f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1206f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1207f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1208f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 1209f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1210f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1211f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1212f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1213f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1214fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 1215fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 1216fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 121738aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1218c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1219c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1220587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman assert((EltTy->isDependentType() || EltTy->isConstantSizeType()) && 1221587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1222587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 122338aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 122438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 122538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 122638aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 122738aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 12290be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12327192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 12337192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 1240f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1241c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12437192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 12447192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1245f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1248566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 1249f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 12507192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 12515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12557e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// getConstantArrayWithExprType - Return a reference to the type for 12567e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// an array of the specified element type. 12577e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType 12587e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorASTContext::getConstantArrayWithExprType(QualType EltTy, 12597e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &ArySizeIn, 12607e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *ArySizeExpr, 12617e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier ASM, 12627e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 12637e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 12647e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Convert the array size into a canonical width matching the pointer 12657e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // size for the target. 12667e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor llvm::APInt ArySize(ArySizeIn); 12677e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 12687e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 12697e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Compute the canonical ConstantArrayType. 12707e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor QualType Canonical = getConstantArrayType(getCanonicalType(EltTy), 12717e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 12727e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Since we don't unique expressions, it isn't possible to unique VLA's 12737e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // that have an expression provided for their size. 12747e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayWithExprType *New = 12757e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)ConstantArrayWithExprType(EltTy, Canonical, 12767e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ArySizeExpr, 12777e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ASM, EltTypeQuals, Brackets); 12787e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Types.push_back(New); 12797e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return QualType(New, 0); 12807e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor} 12817e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 12827e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// getConstantArrayWithoutExprType - Return a reference to the type for 12837e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// an array of the specified element type. 12847e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType 12857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorASTContext::getConstantArrayWithoutExprType(QualType EltTy, 12867e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &ArySizeIn, 12877e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier ASM, 12887e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals) { 12897e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Convert the array size into a canonical width matching the pointer 12907e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // size for the target. 12917e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor llvm::APInt ArySize(ArySizeIn); 12927e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 12937e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 12947e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Compute the canonical ConstantArrayType. 12957e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor QualType Canonical = getConstantArrayType(getCanonicalType(EltTy), 12967e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 12977e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayWithoutExprType *New = 12987e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)ConstantArrayWithoutExprType(EltTy, Canonical, 12997e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 13007e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Types.push_back(New); 13017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return QualType(New, 0); 13027e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor} 13037e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 1304bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1305bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 13067e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 13077e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1308c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 13097e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 13107e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1311c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1312c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1313c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1314566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 13157e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)VariableArrayType(EltTy, QualType(), 13167e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor NumElts, ASM, EltTypeQuals, Brackets); 1317c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1318c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1319c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1320c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1321c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1322c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1323898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1324898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 1325898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 1326898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 13277e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 13287e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1329898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 13307e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 13317e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1332898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1333898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1334898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1335898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 1336898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 1337898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1338566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek DependentSizedArrayType *New = 13397e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new (*this,8) DependentSizedArrayType(EltTy, QualType(), 13407e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor NumElts, ASM, EltTypeQuals, 13417e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Brackets); 1342898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1343898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 1344898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1345898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1346898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1347898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1348c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1349c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1350c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1351c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 13520be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1353c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1354c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 1355c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 1356c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1357c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1358c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1359c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1360c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1361c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1362c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1363c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1364f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 13652bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1366c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1367c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1368c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1369c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1370f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13712bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1372c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 13737e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor IncompleteArrayType *New 13747e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor = new (*this,8) IncompleteArrayType(EltTy, Canonical, 13757e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ASM, EltTypeQuals); 1376c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1377c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1378c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1379c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1380fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1381fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 138273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 138373322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 138473322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 13855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 13865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1387f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 138873322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 13895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 13915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 139273322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 13935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 13955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 13965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 13985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 14005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1401f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 14025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 14045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1405f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1407f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 14085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 14095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 14105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1413213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 141473322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1415213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 141673322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 141773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1418f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1419213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 142073322924127c873c13101b705dd823f5539ffa5fSteve Naroff 142173322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 142273322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1423213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 142473322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 142573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 142673322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 142773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 142873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 142973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 143073322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 143173322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1432213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 143373322924127c873c13101b705dd823f5539ffa5fSteve Naroff 143473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 143573322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1436f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 143773322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1438f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 143973322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 144073322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 144173322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 144273322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 144373322924127c873c13101b705dd823f5539ffa5fSteve Naroff 14449cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas GregorQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 14459cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 14469cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 14479cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor DependentSizedExtVectorType *New = 14489cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor new (*this,8) DependentSizedExtVectorType(vecType, QualType(), 14499cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SizeExpr, AttrLoc); 14509cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 14519cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor DependentSizedExtVectorTypes.push_back(New); 14529cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 14539cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 14549cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 14559cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 145672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 14575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 145872564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy) { 14595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 14605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 14615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 146272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType::Profile(ID, ResultTy); 14635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 146572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionNoProtoType *FT = 146672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 14675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 14685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 147172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy)); 14725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 147472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 147572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1476f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 147972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *New =new(*this,8)FunctionNoProtoType(ResultTy,Canonical); 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 148172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 14825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 14865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 148761710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1488971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1489465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1490465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 1491465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl const QualType *ExArray) { 14925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 14935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 14945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 149572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1496465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1497465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs, ExArray); 14985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 150072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionProtoType *FTP = 150172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1503465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1504465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 15055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 1506465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl if (hasExceptionSpec) 1507465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl isCanonical = false; 15085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 15095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 15105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 15115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1513465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 15145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 15155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 15165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 15175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 15185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1519f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 1520465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1521f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1522beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 1523bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl isVariadic, TypeQuals); 1524465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 15255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 152672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 152772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1528f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1530465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 153172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1532465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1533465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 153472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *FTP = 1535465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1536465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 1537465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs*sizeof(QualType), 8); 153872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1539465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1540465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl ExArray, NumExs, Canonical); 15415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 154272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 15435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 15445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15462ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 15472ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 15484b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 15491e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 15502ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 15512ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 15521e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 15532ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1554fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1555fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 1556fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 15572ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 155849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1559c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1560566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1561566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1562f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1563f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 1564566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1565566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1566566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1567566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1568f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1569f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 15704b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 157149aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 15722ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 157349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 15744b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 157549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 15762ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 15772ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 15795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 15825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1583f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 158472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Decl->TypeForDecl = new(*this,8) TypedefType(Type::Typedef, Decl, Canonical); 15855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 15865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 15875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1589fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 159076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// parameter or parameter pack with the given depth, index, and (optionally) 159176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 1592fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas GregorQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 159376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1594fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1595fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 159676e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1597fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 1598fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType *TypeParm 1599fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1600fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1601fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1602fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1603fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 160476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 160576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 160676e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack, 160776e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson Name, Canon); 160876e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 160976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack); 1610fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1611fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1612fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1613fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1614fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1615fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1616fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 161755f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorQualType 16187532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 16197532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 16207532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 16217532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 162240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor if (!Canon.isNull()) 162340808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor Canon = getCanonicalType(Canon); 1624fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 162555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor llvm::FoldingSetNodeID ID; 16267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType::Profile(ID, Template, Args, NumArgs); 162740808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 162855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void *InsertPos = 0; 16297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType *Spec 16307532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 163155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 163255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (Spec) 163355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 163455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 16357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *Mem = Allocate((sizeof(TemplateSpecializationType) + 163640808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 163740808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 8); 16387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor Spec = new (Mem) TemplateSpecializationType(Template, Args, NumArgs, Canon); 163955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 16407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 164155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 164255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 164355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 164455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1645e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas GregorQualType 1646ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1647e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1648e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1649ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1650e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1651e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 1652e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameType *T 1653e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1654e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1655e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1656e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1657ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, 1658ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1659e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1660e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1661e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1662e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1663e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1664d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1665d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1666d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1667d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1668d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1669d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1670d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1671d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1672d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1673d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1674d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1675d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1676d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1677d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1678d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 1679d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType *T 1680d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1681d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1682d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1683d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1684d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1685d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1686d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 1687d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1688d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1689d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 16901734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorQualType 16911734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorASTContext::getTypenameType(NestedNameSpecifier *NNS, 16921734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 16931734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 16941734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 16951734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 16961734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 16971734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 16981734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 16991734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 17001734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 17011734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = CanonType->getAsTemplateSpecializationType(); 17021734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 17031734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 17041734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 17051734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 17061734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 17071734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 17081734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 17091734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 17101734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 17111734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 17121734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType *T 17131734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 17141734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 17151734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 17161734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 17171734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 17181734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 17191734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 17201734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 17211734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 17221734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 172388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 172488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 172588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 172688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 17272e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 172888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 172988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 173088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 173188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 173288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 173388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 173488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 173588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 173688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 173788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 173888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 173988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 174088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 174188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1742d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 1743d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 174414108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 1745d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCProtocolDecl **Protocols, 1746d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 1747d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // Sort the protocol list alphabetically to canonicalize it. 1748d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (NumProtocols) 1749d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff SortAndUniqueProtocols(Protocols, NumProtocols); 1750d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1751d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 175214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 1753d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1754d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 1755d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 1756d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1757d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QT, 0); 1758d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1759d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // No Match; 1760d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerType *QType = 176114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff new (*this,8) ObjCObjectPointerType(InterfaceT, Protocols, NumProtocols); 1762d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1763d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 1764d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 1765d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 1766d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 176788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1768c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 1769c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 1770c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 1771a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 1772c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (NumProtocols) 1773c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff // Sort the protocol list alphabetically to canonicalize it. 1774c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff SortAndUniqueProtocols(Protocols, NumProtocols); 177588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 17764b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1777c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 17784b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 17794b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1780c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 1781c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 17824b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 17834b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 17844b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1785c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType *QType = 1786c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff new (*this,8) ObjCInterfaceType(const_cast<ObjCInterfaceDecl*>(Decl), 1787c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff Protocols, NumProtocols); 17884b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1789c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.InsertNode(QType, InsertPos); 17904b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 17914b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 17924b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 179372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 179472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 17959752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 17969752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 17979752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 179872564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 1799dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 1800dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor if (tofExpr->isTypeDependent()) 1801dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor toe = new (*this, 8) TypeOfExprType(tofExpr); 1802dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor else { 1803dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 1804dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor toe = new (*this,8) TypeOfExprType(tofExpr, Canonical); 1805dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 18069752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 18079752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1808d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1809d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 18109752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 18119752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 18129752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 18139752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 18149752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1815d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1816f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1817f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 18189752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 18199752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1820d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1821d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 182260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 182360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 182460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 1825a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 1826a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 1827a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson 182860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 182960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 183060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 183160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 183260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 183360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 183460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 183560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 183660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 183760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 183860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 183960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 184060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 184160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 184260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 184360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 184460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 184560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 184660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 184760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 184860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 184960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 185060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 185160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 185260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 185360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 1854395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 1855395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 1856395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 1857395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// an issue. This doesn't effect the type checker, since it operates 1858395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 1859395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 1860dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 1861dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor if (e->isTypeDependent()) // FIXME: canonicalize the expression 1862563a03b1338d31c2462def43253a722bc885d384Anders Carlsson dt = new (*this, 8) DecltypeType(e, DependentTy); 1863dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor else { 1864dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 1865563a03b1338d31c2462def43253a722bc885d384Anders Carlsson dt = new (*this, 8) DecltypeType(e, T, getCanonicalType(T)); 1866dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 1867395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 1868395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 1869395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 1870395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 18715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 18725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 18735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1874d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 18752ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 18765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 18795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 18805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 18815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1882b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 18835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 188564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 188664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 188764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 188864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 188964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 189064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 189164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 189264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 189364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 189464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 189564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 189664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 189764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 189864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 18998b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 19008b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 19018b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1902b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 19038b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 19048b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1905e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1906e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1907e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1908e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 190977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 191077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 191177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 191277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 191377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 191477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 191577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 191677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1917c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1918c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1919c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1920c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1921c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1922c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1923c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1924c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1925c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1926c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1927c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1928c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1929c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1930c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1931c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1932c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1933c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1934c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1935c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1936c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1937c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1938c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1939c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1940898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 19417e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getDependentSizedArrayType(NewEltTy, 19427e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getSizeExpr(), 1943898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 19447e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getIndexTypeQualifier(), 19457e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange()); 1946898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1947c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 19487e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getVariableArrayType(NewEltTy, 19497e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getSizeExpr(), 1950c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 19517e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getIndexTypeQualifier(), 19527e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange()); 1953c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1954c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 195525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 195625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 195725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 195825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 195997fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 196025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 196125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 196225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 196325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 196425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 196525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 1966d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 1967d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 1968d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (!NNS) 1969d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1970d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1971d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 1972d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 1973d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 1974d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 1975d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 1976d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 1977d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1978d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 1979d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 1980d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 1981d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 1982d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1983d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 1984d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 1985d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 1986d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *Prefix = 0; 1987d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1988d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: This isn't the right check! 1989d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T->isDependentType()) 1990d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Prefix = getCanonicalNestedNameSpecifier(NNS->getPrefix()); 1991d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1992d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, Prefix, 1993d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 1994d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 1995d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1996d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1997d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 1998d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 1999d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2000d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2001d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2002d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2003d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2004d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2005d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2006c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2007c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2008c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2009c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 2010c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2011c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2012c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2013c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2014c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2015c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 2016c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 2017c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2018f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Make sure to look through type qualifiers (like ExtQuals) for the negative 2019c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 2020c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 2021c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 2022c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 2023c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2024c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 2025c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2026c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 2027c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2028c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2029c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 2030c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 2031c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 2032c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 2033c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 2034c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2035f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Rip through ExtQualType's and typedefs to get to a concrete type. 2036c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 2037f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(Ty)) { 2038f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian AddrSpace = EXTQT->getAddressSpace(); 2039f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Ty = EXTQT->getBaseType(); 2040c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 2041c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 2042c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 2043c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 2044c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 2045c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 2046c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2047c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2048c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2049c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2050c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 2051c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 2052c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 2053c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2054c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2055c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2056c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2057c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 2058c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 2059c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 2060f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian NewEltTy = getAddrSpaceQualType(NewEltTy, AddrSpace); 2061c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 2062c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2063c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2064c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2065c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 2066c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 2067c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2068c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2069c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 20707e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor IAT->getIndexTypeQualifier())); 2071898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2072898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 2073898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2074898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 2075898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 2076898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 2077898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 20787e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getIndexTypeQualifier(), 20797e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 2080c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2081c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 20827e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 20837e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getSizeExpr(), 2084c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 20857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getIndexTypeQualifier(), 20867e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 208777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 208877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 208977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2090e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2091e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2092e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2093e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2094e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2095e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2096e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2097c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2098c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2099c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2100c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2101c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2102c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 2103e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2104c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2105e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2106e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 2107c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 2108e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2109e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 21105e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 21115e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QualifierSet qualifiers; 21125e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 21135e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor const Type *UT = qualifiers.strip(QT); 21145e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 21155e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 21165e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor }else { 21175e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor return qualifiers.apply(QT, *this); 21185e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 21195e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 21205e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 21215e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2122d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 21236183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 21246183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 21256183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 21266183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 21276183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 21286183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 21296183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 21306183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 21315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 21325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2133a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2134ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 21355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2136a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2137d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 2138ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 2139a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 21405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 21415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 21425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 21435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 21455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2146716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 2147716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 2148716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2149716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 21501361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 21511361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 21521361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 21531361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 21541361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2155716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2156f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2157f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2158f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2159f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2160f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 21611361b11066239ea15764a2a844405352d87296b3Chris Lattner 21621361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 21631361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 21641361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 21651361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 21661361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 21671361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 21685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 21705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 21727cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 21737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 21747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 2175a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2176a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2177a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 2178a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2179a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2180fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2181a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2182fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2183fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 21845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 21855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2186f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2187f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2188f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2189f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2190f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 2191f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2192f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 2193f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2194a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2195a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2196a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2197f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2198f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2199f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2200f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2201f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2202f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2203f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 2204f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 2205f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 22061b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 2207f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 2208f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2209f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 22107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 22117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2212f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 22137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 22147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 22157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 22167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2217f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 22187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 22197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2220f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 22217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 22227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2223f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 22247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 22257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2226f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 22277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 22287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2229f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 22302df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 22312df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 22322df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2233f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2234f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2235f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 22367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 22377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 22387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 22397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2240f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2241f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 22427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 22435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2244f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2245f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 22465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 22487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 22495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 22517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 22527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 22537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 22547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 22557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 22567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 22577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 22587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 22597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 22607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 22617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 22627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 22637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 22647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 22657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 22667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 22677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 22687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 22697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 22705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 22727cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 22737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 22747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 22755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 227671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 227771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 227871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 227971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 22806c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 228139ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2282df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2283f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 228471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 228571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 228671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 2287f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2288f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 228971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 2290f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 229171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 2292f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 229371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 229444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 229544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 229644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 229744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 229844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 22994afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 230017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 230144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 230244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 230344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 230471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 230571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 230671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 23078467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2308b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2309319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 231035366a67baa970c287c714c957cf78a4131cf60dTed Kremenek const RecordType *Rec = T->getAsRecordType(); 2311319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2312319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2313319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2314319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2315bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 2316bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 2317bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 231844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 231944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 232044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 232144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2322bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2323bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2324de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2325bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2326bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2327bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2328bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 2329bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 233044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 233144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 233244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 233344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 233444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 23354afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 233617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 233744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 2338bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 233944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2340bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 2341bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2342bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2343bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2344bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2345319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 234635366a67baa970c287c714c957cf78a4131cf60dTed Kremenek const RecordType *Rec = T->getAsRecordType(); 2347319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2348319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2349319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2350319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2351e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2352e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 23532d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2354e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2355bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2356bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 235785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 235885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 235985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 236085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2361a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 236233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2363a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 236498be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 236533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 236633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 236733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 236898be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 236933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 237033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 237198be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 237298be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 237333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 237433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2375a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 237633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 2377c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2378e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2379c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2380ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2381a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 238233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 23830d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 238433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 238533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 238633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 238733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 238898be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 238933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 239033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 239133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 239289951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 239389951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 239489951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 239589951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 2396a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 239733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 239833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 239933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 240033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 240133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 240233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 240333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 240433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 240589951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 240689951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 240789951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 24084306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 24094306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 2410ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 2411ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 2412ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 2413bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 2414ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2415ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 2416ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2417ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 241833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 24194306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 24200d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 242133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2422a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 242333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 242433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 242533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2426c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 242783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2428c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2429c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 243083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 243183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 243283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 243383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 243483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 243583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 243683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 243783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 243883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 243983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 244083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 244183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 244283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 244383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 244483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 244583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 244683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 244783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 244883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 244983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 245083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 2451c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2452c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2453e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2454c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2455c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2456c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2457c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2458c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2459c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 2460c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 2461c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2462c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 246317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 2464653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2465c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2466c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2467c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2468c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2469c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2470c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2471c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2472c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2473c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2474c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 247561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2476c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 247717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 2478653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2479c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2480c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2481c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2482c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2483c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2484c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2485c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2486c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2487c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2488c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2489c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2490c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2491c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2492c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 2493c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2494c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 2495090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 2496090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 2497153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 2498090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 2499090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 2500c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2501c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 2502c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 2503c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2504c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 2505c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 2506c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 2507c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 2508c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2509c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2510c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2511c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 2512c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 2513c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 2514c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 2515c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2516090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2517090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 2518090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 2519c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2520c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 2521077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 2522c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2523c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2524c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2525c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 2526077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 2527c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2528c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2529c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 2530c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2531c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 253239f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 2533c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2534c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2535c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 2536c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 2537c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2538a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 2539a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 2540c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian/// 'l' or 'L' , but not always. For typedefs, we need to use 2541a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2542a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 2543a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 25448e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 2545a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 2546c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 2547c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2548a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 2549c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian else 2550c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 2551c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2552a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 2553a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2554a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2555a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 2556a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 25577d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 2558153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 255982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 256082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 256182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 256282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 25635b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 25645b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 256582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 256682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 25678b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 2568153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 25698b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 25708b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 25718b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 25729a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 25738b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 25748b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 25758b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 25768b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 257782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 257882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 257982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 2580153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 2581090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 25826ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 2583e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 2584ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 2585ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 2586ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 2587ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 2588ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner default: assert(0 && "Unhandled builtin type kind"); 2589ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 2590ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 2591ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 2592ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 2593ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 2594ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 2595ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULong: 259672696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 2597ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 259872696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 2599ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 2600ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 2601ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 2602ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 2603ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 2604ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 2605ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Long: 2606ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner encoding = 2607ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 2608ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 2609ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 2610ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 2611ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 2612ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 2613ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 261443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2615ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2616ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 2617ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2618ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2619ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2620ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ComplexType *CT = T->getAsComplexType()) { 2621c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 2622c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 2623c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 2624ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2625ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2626ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 262735366a67baa970c287c714c957cf78a4131cf60dTed Kremenek if (const PointerType *PT = T->getAsPointerType()) { 262885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2629a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2630a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2631a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2632a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2633a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 26348e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 2635a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2636a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2637a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2638a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2639a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2640a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 2641a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 264235366a67baa970c287c714c957cf78a4131cf60dTed Kremenek while (P->getAsPointerType()) 264335366a67baa970c287c714c957cf78a4131cf60dTed Kremenek P = P->getAsPointerType()->getPointeeType(); 2644a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 2645a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2646a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2647a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2648a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2649a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 2650a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 2651a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 2652a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 2653a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 2654a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 2655a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2656a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 2657a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 2658a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2659a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 266014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (isObjCSelType(PointeeTy)) { 26618baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 26628baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2663c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 266485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 266585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 266685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 266785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2668e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 266985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 267085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 267185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 26729533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } else if (const RecordType *RTy = PointeeTy->getAsRecordType()) { 26739533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 26749533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 26759533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 26769533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 26779533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 26789533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 26799533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 26809533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 26819533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 26829533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 26839533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 268485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 268585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2686a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2687a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2688ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 268943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2690ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2691ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2692ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2693ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 2694ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 2695ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 2696559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 2697559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 2698559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 2699559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 2700559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2701559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2702559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 2703559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 270485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2705559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2706559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 2707559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 2708559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 2709559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 2710559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 2711559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 271285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2713559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2714559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2715559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 2716559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 2717ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2718ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2719ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2720ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->getAsFunctionType()) { 2721c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 2722ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2723ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2724ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 272535366a67baa970c287c714c957cf78a4131cf60dTed Kremenek if (const RecordType *RTy = T->getAsRecordType()) { 272682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2727d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2728502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2729502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2730502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2731502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2732502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2733502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 27340d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 27357d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 273617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 273717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 273844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 273943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2740d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 274144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2742d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2743d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2744d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2745d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 274643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 274743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 274843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2749d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2750a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2751a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2752a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 275343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2754d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 27557d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 27566de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2757d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 2758ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2759ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2760ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2761ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 27628b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 27638b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 27648b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 27658b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2766ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2767ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2768ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2769ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 277021a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 2771ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2772ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2773ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2774ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isObjCInterfaceType()) { 277543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 277643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 277743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 277843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 277943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 278043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 2781f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 278243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 2783f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 278443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 278543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 278643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 278743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 278843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 278943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 279043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 279143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 2792ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 279343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2794ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2795ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ObjCObjectPointerType *OPT = T->getAsObjCObjectPointerType()) { 279614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 279714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 279814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 2799ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2800ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2801ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCClassType()) { 280214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 280314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 2804ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2805ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2806ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 280714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff getObjCEncodingForTypeImpl(getObjCIdType(), S, 280814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 280914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 281014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 281114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 281214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 281314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 281467ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 281567ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 281614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 281714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 281814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 281914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 282014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 282114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 282214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 2823ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2824ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2825ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 2826ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 2827ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 2828ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 2829ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // We encode the underlying type which comes out as 2830ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 2831ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 2832ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner getObjCEncodingForTypeImpl(PointeeTy, S, 2833ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner false, ExpandPointedToStructures, 2834ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 283514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 283614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 2837ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2838ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 2839ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD || EncodingProperty) { 2840ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 284167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff S += OPT->getInterfaceDecl()->getNameAsCString(); 284267ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 284367ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 2844ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 2845ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 2846ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 2847ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2848ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 2849ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2850ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2851ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 2852ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 2853ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 285485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 285585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2856a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 2857ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 2858ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 2859ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 2860ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 2861ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 2862ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 2863ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 2864ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 2865ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 2866ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 2867ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 2868ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 2869ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 2870ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 2871ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 2872ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 2873b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 2874b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2875b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 2876b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 2877b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2878ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 2879de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 28807e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 28817e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 2882ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 2883319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 2884319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2885319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2886319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2887319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2888319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 2889b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2890b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 289135366a67baa970c287c714c957cf78a4131cf60dTed Kremenek const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2892c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2893c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2894b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2895c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2896c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2897b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 2898b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 2899b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2900ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 2901a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 2902390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 2903390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 2904ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 2905de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 29068baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 29078baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 2908a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 2909a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 29102198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 29112198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2912a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 29132198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 29142198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 29157532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 29167532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 29177532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 29187532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 29197532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 29207532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 29217532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 29227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 29237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 29247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 29257532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 29267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 29277532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 29287532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 29297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 29307532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 29317532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 29327532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 29337532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 29347532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 29357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 29367532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 29377532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 29387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(NNS->isDependent() && "Nested name specifier must be dependent"); 29397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 29407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 29417532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 29427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 29437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 29447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 29457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 29467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 29477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 29487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 29497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 29507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 29517532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 29527532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 29537532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 29547532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 29557532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 29567532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 29577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 29587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 29597532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 29607532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 29617532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 2962b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 2963d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 2964d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 2965d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 2966b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 2967b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 2968b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 2969b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 2970b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 2971b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 2972b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 2973b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 2974b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 2975b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 2976b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 2977b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 2978b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 2979b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 2980b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 2981b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2982b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2983b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 2984b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2985b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2986fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 2987fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 2988fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 2989f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 2990fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 2991fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 2992fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 2993fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 299440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 2995fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2996fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2997fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 2998fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 2999fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 30004fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 30014fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 30024fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 30034fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz JahanianQualType::GCAttrTypes ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 3004b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttrs = QualType::GCNone; 30054fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 30064fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3007b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 30084fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 3009a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // (or pointers to them) be treated as though they were declared 3010a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 3011a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (GCAttrs == QualType::GCNone) { 3012f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff if (Ty->isObjCObjectPointerType()) 3013a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian GCAttrs = QualType::Strong; 3014a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 301535366a67baa970c287c714c957cf78a4131cf60dTed Kremenek return getObjCGCAttrKind(Ty->getAsPointerType()->getPointeeType()); 3016a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3017c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3018c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3019f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 3020c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian return QualType::GCNone; 30214fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3022b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 30234fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 30244fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 30256ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 30266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 30276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3028770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 30296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 30306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 30316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 30326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 30336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 30346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 303561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 30366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 30376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 30384084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 30394084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 30404084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 30414084c306635b70f37029dca938444e6013f08684Steve Naroff 30424084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 30434084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 30444084c306635b70f37029dca938444e6013f08684Steve Naroffstatic bool ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 30454084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rProto) { 30464084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 304714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 30484084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 30494084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 30504084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 30514084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 30524084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 30534084c306635b70f37029dca938444e6013f08684Steve Naroff} 305414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 30554084c306635b70f37029dca938444e6013f08684Steve Naroff/// ClassImplementsProtocol - Checks that 'lProto' protocol 30564084c306635b70f37029dca938444e6013f08684Steve Naroff/// has been implemented in IDecl class, its super class or categories (if 30574084c306635b70f37029dca938444e6013f08684Steve Naroff/// lookupCategory is true). 30584084c306635b70f37029dca938444e6013f08684Steve Naroffstatic bool ClassImplementsProtocol(ObjCProtocolDecl *lProto, 30594084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCInterfaceDecl *IDecl, 30604084c306635b70f37029dca938444e6013f08684Steve Naroff bool lookupCategory, 30614084c306635b70f37029dca938444e6013f08684Steve Naroff bool RHSIsQualifiedID = false) { 30624084c306635b70f37029dca938444e6013f08684Steve Naroff 30634084c306635b70f37029dca938444e6013f08684Steve Naroff // 1st, look up the class. 30644084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCList<ObjCProtocolDecl> &Protocols = 30654084c306635b70f37029dca938444e6013f08684Steve Naroff IDecl->getReferencedProtocols(); 30664084c306635b70f37029dca938444e6013f08684Steve Naroff 30674084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCList<ObjCProtocolDecl>::iterator PI = Protocols.begin(), 30684084c306635b70f37029dca938444e6013f08684Steve Naroff E = Protocols.end(); PI != E; ++PI) { 30694084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 30704084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 30714084c306635b70f37029dca938444e6013f08684Steve Naroff // This is dubious and is added to be compatible with gcc. In gcc, it is 30724084c306635b70f37029dca938444e6013f08684Steve Naroff // also allowed assigning a protocol-qualified 'id' type to a LHS object 30734084c306635b70f37029dca938444e6013f08684Steve Naroff // when protocol in qualified LHS is in list of protocols in the rhs 'id' 30744084c306635b70f37029dca938444e6013f08684Steve Naroff // object. This IMO, should be a bug. 30754084c306635b70f37029dca938444e6013f08684Steve Naroff // FIXME: Treat this as an extension, and flag this as an error when GCC 30764084c306635b70f37029dca938444e6013f08684Steve Naroff // extensions are not enabled. 30774084c306635b70f37029dca938444e6013f08684Steve Naroff if (RHSIsQualifiedID && ProtocolCompatibleWithProtocol(*PI, lProto)) 30784084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 30794084c306635b70f37029dca938444e6013f08684Steve Naroff } 30804084c306635b70f37029dca938444e6013f08684Steve Naroff 30814084c306635b70f37029dca938444e6013f08684Steve Naroff // 2nd, look up the category. 30824084c306635b70f37029dca938444e6013f08684Steve Naroff if (lookupCategory) 30834084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCCategoryDecl *CDecl = IDecl->getCategoryList(); CDecl; 30844084c306635b70f37029dca938444e6013f08684Steve Naroff CDecl = CDecl->getNextClassCategory()) { 30854084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCCategoryDecl::protocol_iterator PI = CDecl->protocol_begin(), 30864084c306635b70f37029dca938444e6013f08684Steve Naroff E = CDecl->protocol_end(); PI != E; ++PI) 30874084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 30884084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 30894084c306635b70f37029dca938444e6013f08684Steve Naroff } 30904084c306635b70f37029dca938444e6013f08684Steve Naroff 30914084c306635b70f37029dca938444e6013f08684Steve Naroff // 3rd, look up the super class(s) 30924084c306635b70f37029dca938444e6013f08684Steve Naroff if (IDecl->getSuperClass()) 30934084c306635b70f37029dca938444e6013f08684Steve Naroff return 30944084c306635b70f37029dca938444e6013f08684Steve Naroff ClassImplementsProtocol(lProto, IDecl->getSuperClass(), lookupCategory, 30954084c306635b70f37029dca938444e6013f08684Steve Naroff RHSIsQualifiedID); 30964084c306635b70f37029dca938444e6013f08684Steve Naroff 30974084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 30984084c306635b70f37029dca938444e6013f08684Steve Naroff} 30994084c306635b70f37029dca938444e6013f08684Steve Naroff 31004084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 31014084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 31024084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 31034084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 31044084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 31054084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 31064084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 31074084c306635b70f37029dca938444e6013f08684Steve Naroff} 31084084c306635b70f37029dca938444e6013f08684Steve Naroff 31094084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 31104084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 31114084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 31124084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 31134084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 31144084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isVoidPointerType() || 31154084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 31164084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 31174084c306635b70f37029dca938444e6013f08684Steve Naroff else if (rhs->isVoidPointerType() || 31184084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 31194084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 31204084c306635b70f37029dca938444e6013f08684Steve Naroff 31214084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 31224084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsOPT = rhs->getAsObjCObjectPointerType(); 31234084c306635b70f37029dca938444e6013f08684Steve Naroff 31244084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 31254084c306635b70f37029dca938444e6013f08684Steve Naroff 31264084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 31274084c306635b70f37029dca938444e6013f08684Steve Naroff // If the RHS is a unqualified interface pointer "NSString*", 31284084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 31294084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 31304084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 31314084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 31324084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 31334084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 31344084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 31354084c306635b70f37029dca938444e6013f08684Steve Naroff if (!ClassImplementsProtocol(*I, rhsID, true)) 31364084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 31374084c306635b70f37029dca938444e6013f08684Steve Naroff } 31384084c306635b70f37029dca938444e6013f08684Steve Naroff } 31394084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 31404084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 31414084c306635b70f37029dca938444e6013f08684Steve Naroff } 3142de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // Both the right and left sides have qualifiers. 31434084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 31444084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 31454084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 31464084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 3147de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 3148de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 3149de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 3150de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 31514084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 31524084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 31534084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 31544084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 31554084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 31564084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 31578f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 31588f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 3159de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 31604084c306635b70f37029dca938444e6013f08684Steve Naroff // If the RHS is a qualified interface pointer "NSString<P>*", 31614084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 31624084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 31634084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 31644084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 31654084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 31664084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 31674084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 31684084c306635b70f37029dca938444e6013f08684Steve Naroff if (ClassImplementsProtocol(*I, rhsID, true)) { 31694084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 31704084c306635b70f37029dca938444e6013f08684Steve Naroff break; 31714084c306635b70f37029dca938444e6013f08684Steve Naroff } 31724084c306635b70f37029dca938444e6013f08684Steve Naroff } 31734084c306635b70f37029dca938444e6013f08684Steve Naroff } 31744084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 3175de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 3176de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 31774084c306635b70f37029dca938444e6013f08684Steve Naroff 3178de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 3179de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 31804084c306635b70f37029dca938444e6013f08684Steve Naroff 31814084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 31824084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 31834084c306635b70f37029dca938444e6013f08684Steve Naroff 31844084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsOPT = 31854084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 31864084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 31874084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 31884084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 31894084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 31904084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 31914084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 31924084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 31934084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 31944084c306635b70f37029dca938444e6013f08684Steve Naroff if (ClassImplementsProtocol(*I, lhsID, true)) { 31954084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 31964084c306635b70f37029dca938444e6013f08684Steve Naroff break; 31974084c306635b70f37029dca938444e6013f08684Steve Naroff } 31984084c306635b70f37029dca938444e6013f08684Steve Naroff } 31994084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 32004084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 32014084c306635b70f37029dca938444e6013f08684Steve Naroff } 32024084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 32034084c306635b70f37029dca938444e6013f08684Steve Naroff } 32044084c306635b70f37029dca938444e6013f08684Steve Naroff // Both the right and left sides have qualifiers. 32054084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 32064084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 32074084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 32084084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 32094084c306635b70f37029dca938444e6013f08684Steve Naroff 32104084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 32114084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 32124084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 32134084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 32144084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 32154084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 32164084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 32174084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 32184084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 32194084c306635b70f37029dca938444e6013f08684Steve Naroff break; 32204084c306635b70f37029dca938444e6013f08684Steve Naroff } 32214084c306635b70f37029dca938444e6013f08684Steve Naroff } 32224084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 32234084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 32244084c306635b70f37029dca938444e6013f08684Steve Naroff } 32254084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 32264084c306635b70f37029dca938444e6013f08684Steve Naroff } 32274084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 32284084c306635b70f37029dca938444e6013f08684Steve Naroff} 32294084c306635b70f37029dca938444e6013f08684Steve Naroff 32304084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 32314084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 32324084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 32334084c306635b70f37029dca938444e6013f08684Steve Naroff/// 32344084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 32354084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 32364084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 32374084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 32384084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 32394084c306635b70f37029dca938444e6013f08684Steve Naroff 32404084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 32414084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 32424084c306635b70f37029dca938444e6013f08684Steve Naroff QualType(RHSOPT,0), 32434084c306635b70f37029dca938444e6013f08684Steve Naroff false); 32444084c306635b70f37029dca938444e6013f08684Steve Naroff 32454084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 32464084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 32474084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 32484084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 32494084c306635b70f37029dca938444e6013f08684Steve Naroff 32504084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 325114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 325214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 32533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 32543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 32556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 32566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 32576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 32586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 32596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 32606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 32616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 3262c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 32636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 32646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 32656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 32666ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 3267c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 32686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 32696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 3270c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 3271c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 327291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 327391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 327491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 327591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 327691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 3277c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 32784084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 32798f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 32808f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 328191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 32828f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 32838f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 328491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 328591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 328691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 328791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 328891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 328991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 329091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 32916ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 32926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 3293389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 3294389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 329514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *LHSOPT = LHS->getAsObjCObjectPointerType(); 329614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *RHSOPT = RHS->getAsObjCObjectPointerType(); 3297389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 329814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 3299389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 330014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 330114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 330214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 3303389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 3304389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 3305ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 3306ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 3307ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 3308ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 33093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 33103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 33113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 33123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33133d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 33143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 33153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 331672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 331772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 33183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 33193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 33203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 33223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 33233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 332461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 332561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 332661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 332761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 33283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 3330465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 3331465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 33323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 33333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 33343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 33363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 33373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 33383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 33403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 33413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 33423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33437fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 33447fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 33457fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 33463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 33473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 33483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 33493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 33503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 33513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 33523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 33533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 335461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 335561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 335661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 335761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 33583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 33603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 33613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 33627fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 33633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 33663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 33673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 336872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 33693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 3370465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 33713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 33723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 33733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 33743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 33753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 33763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 33773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 33783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 33793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 33803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 33813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 33823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 33833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 33863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 33873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 33887fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 33897fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 33903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 33913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 33933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 339472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return getFunctionNoProtoType(retType); 33953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 33963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 33973d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 339843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 339943d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 340043d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 34017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 34027c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 34033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 34043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 34057c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 34067c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 340735366a67baa970c287c714c957cf78a4131cf60dTed Kremenek if (const ReferenceType *RT = LHS->getAsReferenceType()) 3408c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 340935366a67baa970c287c714c957cf78a4131cf60dTed Kremenek if (const ReferenceType *RT = RHS->getAsReferenceType()) 3410c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 34113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 34123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 34133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 34143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3415f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 34163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 34173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 34183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 34193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 34205a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Note that we handle extended qualifiers later, in the 34215a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // case for ExtQualType. 34225a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers()) 34233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 34243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3425852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 3426852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 3427f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 34281adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 34291adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 34301adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 34311adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 34324c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 343307d258756dc856c6987c394a0972884e6ed46765Eli Friedman // Strip off objc_gc attributes off the top level so they can be merged. 343407d258756dc856c6987c394a0972884e6ed46765Eli Friedman // This is a complete mess, but the attribute itself doesn't make much sense. 3435585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (RHSClass == Type::ExtQual) { 343607d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = RHSCan.getObjCGCAttr(); 343707d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 343886f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian QualType::GCAttrTypes GCLHSAttr = LHSCan.getObjCGCAttr(); 34398df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. 344086f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 344186f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 344286f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 344386f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCLHSAttr != GCAttr) || 344486f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCLHSAttr != GCAttr && 344514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff !LHSCan->isObjCObjectPointerType())) 34468df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 34478df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian 344807d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS = QualType(cast<ExtQualType>(RHS.getDesugaredType())->getBaseType(), 344907d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS.getCVRQualifiers()); 345007d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 34518df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 34528df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 34538df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 34548df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 34558df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 34568df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 345707d258756dc856c6987c394a0972884e6ed46765Eli Friedman return Result; 345807d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3459585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3460585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (LHSClass == Type::ExtQual) { 346107d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = LHSCan.getObjCGCAttr(); 346207d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 34638df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian QualType::GCAttrTypes GCRHSAttr = RHSCan.getObjCGCAttr(); 34648df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. __strong 346586f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // __strong attribue is redundant if other decl is an objective-c 346686f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 346786f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 346886f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCRHSAttr != GCAttr) || 346986f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCRHSAttr != GCAttr && 347014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff !RHSCan->isObjCObjectPointerType())) 34718df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 347286f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian 347307d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS = QualType(cast<ExtQualType>(LHS.getDesugaredType())->getBaseType(), 347407d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS.getCVRQualifiers()); 347507d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 34768df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 34778df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 34788df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 34798df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 34808df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 34818df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 3482354e53da656237e25518b3fafa3bf84de6e6f57eEli Friedman return Result; 348307d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3484585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3485585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian 34864c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 3487a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 3488a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 3489a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 3490a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 3491a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 3492213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 3493213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 3494213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 3495ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 34964e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 34974e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 34981adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 34991adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 35003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 35013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 35023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 3503bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 35043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 35053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 35063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 3507bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 35081adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 35093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 3510ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 35113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 35124a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 35131adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 351472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 351572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 351672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 351772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 351872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 351972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 352072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 352172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 35227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 35237c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 352472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 352572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 352672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 352772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 352872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 352972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 353072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 353172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 353272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 353372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 353472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 35351adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 35363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 35373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 353835366a67baa970c287c714c957cf78a4131cf60dTed Kremenek QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 353935366a67baa970c287c714c957cf78a4131cf60dTed Kremenek QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 35403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 35413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 354207d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 354361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 354407d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 354561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 35463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 35473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 3548c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 3549c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 3550c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 355135366a67baa970c287c714c957cf78a4131cf60dTed Kremenek QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 355235366a67baa970c287c714c957cf78a4131cf60dTed Kremenek QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 3553c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3554c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 3555c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3556c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 3557c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3558c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 3559c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 3560c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 35611adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 35623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 35633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 35643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 35653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 35663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 35673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 35683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 35693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 35703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 35713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 357261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 357361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 357461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 357561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 35763bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 35773bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 35783bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 35793bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 35803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 35813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 358261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 358361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 358461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 358561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 35863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 35873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 35883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 35893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 35903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 35913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 35923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 35933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 35943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 35953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 35963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 35973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 35983bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 35993bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 36007e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 36017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 36023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 36031adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 36043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 360572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 360672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 36073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 36081adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 36093cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 36103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 361164cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 361264cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 361364cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 36143cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 36155a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 36163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 36173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 361861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 361961490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 36205fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 36215a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 36225a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 36235fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 36245fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 36255fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 36265fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 36275fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 36285fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 36293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 363061490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 363114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 363214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (canAssignObjCInterfaces(LHS->getAsObjCObjectPointerType(), 363314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff RHS->getAsObjCObjectPointerType())) 363414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 363514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 3636bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 363714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 36385a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 36395a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 36405a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 36415a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ExtQual: 36425a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: ExtQual types can be compatible even if they're not 36435a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // identical! 36445a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 36455a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // First attempt at an implementation, but I'm not really sure it's 36465a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // right... 36475a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#if 0 36485a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* LQual = cast<ExtQualType>(LHSCan); 36495a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* RQual = cast<ExtQualType>(RHSCan); 36505a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LQual->getAddressSpace() != RQual->getAddressSpace() || 36515a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LQual->getObjCGCAttr() != RQual->getObjCGCAttr()) 36525a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 36535a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman QualType LHSBase, RHSBase, ResultType, ResCanUnqual; 36545a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LHSBase = QualType(LQual->getBaseType(), 0); 36555a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman RHSBase = QualType(RQual->getBaseType(), 0); 36565a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = mergeTypes(LHSBase, RHSBase); 36575a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (ResultType.isNull()) return QualType(); 36585a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResCanUnqual = getCanonicalType(ResultType).getUnqualifiedType(); 36595a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getUnqualifiedType() == ResCanUnqual) 36605a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return LHS; 36615a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (RHSCan.getUnqualifiedType() == ResCanUnqual) 36625a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return RHS; 36635a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getAddrSpaceQualType(ResultType, LQual->getAddressSpace()); 36645a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getObjCGCQualType(ResultType, LQual->getObjCGCAttr()); 36655a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType.setCVRQualifiers(LHSCan.getCVRQualifiers()); 36665a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return ResultType; 36675a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#endif 36687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 36697532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 36707532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 36717532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 3672ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 367372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 367472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 3675ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 36767192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 36775426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 3678ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 3679ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 368088054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 3681ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 3682ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 3683ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 3684f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 3685f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 3686f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 3687f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 3688ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 3689ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3690ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3691ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 3692ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 3693ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 3694ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 3695ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 3696ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 3697ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 3698ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 3699ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 3700ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 3701ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 3702ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 3703ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 3704ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 3705ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 3706ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 3707ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 3708ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 37092df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 37102df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 3711ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 3712ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 3713ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 3714ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 3715ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3716ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 37172cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 37182cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 37192cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 372086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 372186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 372286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 372386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 372486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 372586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 372686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 372786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 372886df27bbdbb98c39ec2184695c0561209f91beddChris Lattnerstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 372986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 373086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 373186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 373286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 373386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 373486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 373586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 373686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 373786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 373886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 373986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 374086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 374186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 374286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 374386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 374486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 374586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 374686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 374786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 374886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 374986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 375086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 375186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 375286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 375386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 375486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 375586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 375686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 375786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 375886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 375986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 376086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 376186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 376286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 376386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 376486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 376586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 376686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 376786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 376886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 376986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 377086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 377186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 377286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 377386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 377486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 377586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 377686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 377786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 377886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 377986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 378086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 378186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 378286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 378386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 378486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 378586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 378686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 378786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 378886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 378986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 379086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 379186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 379286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 379386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 379486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 379586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 379686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 379786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 379886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 379986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 380086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 380186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 380286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 380386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 380486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 380586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 380686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 380786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 380886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 380986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 381086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 381186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 381286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 381386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 381486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 381586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 381686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 381786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 381886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 381986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 382086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 382186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 382286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 382386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 382486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 382586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 382686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 382786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 382886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 382986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 383086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 383186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 383286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 383386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 383486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 383586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 383686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 383786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 383886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 383986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 384086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 384186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 384286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 384386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 384486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 384586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 384686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 384786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 384886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 384986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 385086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'P': { 3851c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 3852c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 385386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = ASTContext::GE_Missing_FILE; 385486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 3855c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor } else { 3856c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor break; 385786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 385886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 385986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 386086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 386186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 386286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 386386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 386486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 386586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 386686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 386786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 386886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 386986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 387086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 387186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 387286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 387386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 387486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 387586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 387686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Type.getQualifiedType(QualType::Const); 387786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 387886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 387986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 388086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 388186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 388286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 388386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 388486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 388586df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 388686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 388786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 388886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 388986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 389086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 389186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 389286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 389386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 389486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 389586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 389686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 389786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 389886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 389986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 390086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 390186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 390286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 390386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 390486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 390586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 390686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 390786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 390886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 390986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 391086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 391186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 391286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 391386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 391486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 391586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 3916