ASTContext.cpp revision 788cd06cf8e868a67158aafec5de3a1f408d14f3
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" 18b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 19e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 202cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor#include "clang/AST/ExternalASTSource.h" 2119cc4abea06a9b49e0e16a50d335c064cd723572Anders Carlsson#include "clang/AST/RecordLayout.h" 221b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner#include "clang/Basic/Builtins.h" 23a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 25f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/ADT/SmallString.h" 2685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 276fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 28f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/Support/raw_ostream.h" 2929445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson#include "RecordLayoutBuilder.h" 3029445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3761710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 39e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 401b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool FreeMem, unsigned size_reserve) : 421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 43782fa308a765aeac2acb39c4e697c937ec21185bMike Stump ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), jmp_bufDecl(0), 44083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump sigjmp_bufDecl(0), BlockDescriptorType(0), BlockDescriptorExtendedType(0), 45083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceMgr(SM), LangOpts(LOpts), 461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump LoadedExternalComments(false), FreeMemory(FreeMem), Target(t), 472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 490f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCIdRedefinitionType = QualType(); 500f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCClassRedefinitionType = QualType(); 511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (size_reserve > 0) Types.reserve(size_reserve); 52e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 5314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 54e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 55e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 594b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 62b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSet<ExtQuals>::iterator 650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall I = ExtQualNodes.begin(), E = ExtQualNodes.end(); 660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall while (I != E) 670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Deallocate(&*I++); 680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall { 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 75b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 76b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 77b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 78b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 79b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 80b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 81b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 82b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 83b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 84b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 85b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 86b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 87b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 88ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 891ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 901ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNSEnd = NestedNameSpecifiers.end(); 921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS != NNSEnd; 931ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 941ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 95ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 96ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 97ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 98ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 99b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 1032cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 1042cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 1052cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 1062cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 1107c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 111dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 1121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump#define TYPE(Name, Parent) 0, 113dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 115dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 116dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 117c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 120dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 123dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 124dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 125dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 126dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 127dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 128dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 129dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 130dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 131dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 1321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 133dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1342cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1352cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1362cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1372cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1382cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 142e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallvoid ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) { 1436b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BuiltinType *Ty = new (*this, TypeAlignment) BuiltinType(K); 144e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall R = CanQualType::CreateUnsafe(QualType(Ty, 0)); 1456b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Types.push_back(Ty); 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 15715b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 17964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1802df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1812df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1822df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1832df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1843a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1853a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1863a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1873a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 18864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 189f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 190f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 191f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 192f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 193f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 194f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 195f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 196f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 197f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 198f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 1998e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 200898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 201898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 202898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 203898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 204898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 205898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 206898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 207898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2088e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Placeholder type for C++0x auto declarations whose real type has 210e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 211e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 2121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2178e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2187e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 2191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 220de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 221de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 222de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 2231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 224de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // Builtin types for 'id' and 'Class'. 225de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 226de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 22714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 228a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 2291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 23133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2326e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2336e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2346e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 237251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorMemberSpecializationInfo * 238663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas GregorASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { 2397caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member"); 240663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor llvm::DenseMap<const VarDecl *, MemberSpecializationInfo *>::iterator Pos 2417caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor = InstantiatedFromStaticDataMember.find(Var); 2427caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Pos == InstantiatedFromStaticDataMember.end()) 2437caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return 0; 2441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2457caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return Pos->second; 2467caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2477caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 249251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, 250251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor TemplateSpecializationKind TSK) { 2517caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Inst->isStaticDataMember() && "Not a static data member"); 2527caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Tmpl->isStaticDataMember() && "Not a static data member"); 2537caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(!InstantiatedFromStaticDataMember[Inst] && 2547caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor "Already noted what static data member was instantiated from"); 255251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor InstantiatedFromStaticDataMember[Inst] 256251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor = new (*this) MemberSpecializationInfo(Tmpl, TSK); 2577caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2587caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2590d8df780aef1acda5962347a32591efc629b6748Anders CarlssonUnresolvedUsingDecl * 2600d8df780aef1acda5962347a32591efc629b6748Anders CarlssonASTContext::getInstantiatedFromUnresolvedUsingDecl(UsingDecl *UUD) { 2613958b502404b4bd67f26fee398cb347abe89e6a8Jeffrey Yasskin llvm::DenseMap<UsingDecl *, UnresolvedUsingDecl *>::const_iterator Pos 2620d8df780aef1acda5962347a32591efc629b6748Anders Carlsson = InstantiatedFromUnresolvedUsingDecl.find(UUD); 2630d8df780aef1acda5962347a32591efc629b6748Anders Carlsson if (Pos == InstantiatedFromUnresolvedUsingDecl.end()) 2640d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return 0; 2651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2660d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return Pos->second; 2670d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2680d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 2690d8df780aef1acda5962347a32591efc629b6748Anders Carlssonvoid 2700d8df780aef1acda5962347a32591efc629b6748Anders CarlssonASTContext::setInstantiatedFromUnresolvedUsingDecl(UsingDecl *UD, 2710d8df780aef1acda5962347a32591efc629b6748Anders Carlsson UnresolvedUsingDecl *UUD) { 2720d8df780aef1acda5962347a32591efc629b6748Anders Carlsson assert(!InstantiatedFromUnresolvedUsingDecl[UD] && 2730d8df780aef1acda5962347a32591efc629b6748Anders Carlsson "Already noted what using decl what instantiated from"); 2740d8df780aef1acda5962347a32591efc629b6748Anders Carlsson InstantiatedFromUnresolvedUsingDecl[UD] = UUD; 2750d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2760d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 277d8b285fee4471f393da8ee30f552ceacdc362afaAnders CarlssonFieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { 278d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos 279d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson = InstantiatedFromUnnamedFieldDecl.find(Field); 280d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (Pos == InstantiatedFromUnnamedFieldDecl.end()) 281d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return 0; 2821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 283d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return Pos->second; 284d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 285d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 286d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlssonvoid ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, 287d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson FieldDecl *Tmpl) { 288d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed"); 289d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Tmpl->getDeclName() && "Template field decl is not unnamed"); 290d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!InstantiatedFromUnnamedFieldDecl[Inst] && 291d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson "Already noted what unnamed field was instantiated from"); 2921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 293d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; 294d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 295d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 2962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 2971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump class BeforeInTranslationUnit 2982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 2992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 3001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 3022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 3031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 3052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 3062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 3082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 3112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 3132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 3152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 3172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 3182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 3191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic bool 3201eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 3212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 3221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *BufferStart 3232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 3242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 3252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 3261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 3282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 3312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 3322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 3342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 3372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 3401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// it has one. 3412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 3422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 3432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 3462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 3471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::DenseMap<const Decl *, std::string>::iterator Pos 3482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 3492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 3502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 3512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we have an external AST source and have not yet loaded comments from 3532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 3552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 3562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 3571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 3592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 3602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 3611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 3632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If there are no comments anywhere, we won't find anything. 3662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 3702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 3712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 3722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 3732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 3762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 3771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = std::lower_bound(Comments.begin(), Comments.end(), 3782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 3792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 3801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 3822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 3831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<FileID, unsigned> DeclStartDecomp 3842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 3851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *FileBufferStart 3862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 3871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 3892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 3902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 3912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 3922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 3952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 3961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 3982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 3992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 4002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 4012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 4031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 4102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 4122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 4142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 4152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 4161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 4182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 4192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 4202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 4232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 4242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 4272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 4281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned DeclStartLine 4292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 4302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 4311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 4322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 4331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 4352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 4362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 4372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 4402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 4412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 4421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ExpectedLine 4432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 4442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 4452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 4462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 4472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 4482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 4492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 4522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 4532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 4582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 4592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 4642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 4652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 4662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 4711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExpectedLine 4722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 4732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 4762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 4772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 4782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 4792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 4812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 4822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 4832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 4842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 4862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 4872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 4911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 4921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 4932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 4962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 497464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 498464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 499464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 500a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 501b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 502b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 503b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 504183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const BuiltinType *BT = T->getAs<BuiltinType>(); 505b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 506b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 507b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 508b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 509b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 510b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 511b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 512b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 513b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 514196efbf095d75180305a45f3033caa1003746604Mike Stump/// getDeclAlignInBytes - Return a conservative estimate of the alignment of the 515af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 516af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 517b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 518dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 519dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 52040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 521dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 522dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 523af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 524af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 5256217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 5264cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 527f0930235ce58a91aa3b840bece9052f44d630536Anders Carlsson Align = Target.getPointerAlign(AS); 5284cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson } else if (!T->isIncompleteType() && !T->isFunctionType()) { 5294cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 530dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 531dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 532dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 533dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 534dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 535af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 536dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 537dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 538af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 539b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 540a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 541a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 5420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 5430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// FIXME: Pointers into different addr spaces could have different sizes and 5440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// alignment requirements: getPointerInfo should take an AddrSpace, this 5450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// should take a QualType, &c. 546d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 5471d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 5485e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 5495e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 550a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 55172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 55272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 55318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 55472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 55572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 55618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 55772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 55872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 5595d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 5605d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 56118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 56218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 56318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 56418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 56518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 56672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 567fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 56818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 56918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 57018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 57118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 572fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 5731d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 5741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 57598be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 5769e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 577030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 578030d8846c7e520330007087e949f621989876e3aChris Lattner break; 5795c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 580213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 581030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 5829fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner const VectorType *VT = cast<VectorType>(T); 5839fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(VT->getElementType()); 5849fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = EltInfo.first*VT->getNumElements(); 5854bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 5866fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 5876fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 5889fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner if (VT->getNumElements() & (VT->getNumElements()-1)) { 5899fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Align = llvm::NextPowerOf2(Align); 5909fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = llvm::RoundUpToAlignment(Width, Align); 5919fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner } 592030d8846c7e520330007087e949f621989876e3aChris Lattner break; 593030d8846c7e520330007087e949f621989876e3aChris Lattner } 5945d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 5959e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 596a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 597692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 598d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 59918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 60018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 60118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 60218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 60318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 6046f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 6059e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 6069e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 6076f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 608692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 609692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 610692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 6116f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 6129e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 6139e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 6146f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 61564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 61664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 61764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 61864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 619f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 620f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 621f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 622f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 623f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 624f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 625f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 626f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 627692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 6286f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 6299e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 6309e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 6316f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 632692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 6336f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 6349e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 6359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 6366f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 637692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 6386f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 6399e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 6409e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 6416f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 642692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 6436f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 6449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 6459e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 6466f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 647ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 648ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 649ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 650ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 651ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 6526f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 6539e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 6549e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 6556f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6566f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 6575426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 6585426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 6596f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6606f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 6619e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 6629e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 6636f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6646e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 6656e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 6666e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 6671590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 668a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 669bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 670f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 671f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 672f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 673f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 674736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 675f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 676f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 677d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 6785426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 679f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 6806f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 681485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 682485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 683485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 684485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 685485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 686485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 687f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 688f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 6895426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 690f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 691f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 692f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 6937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 6947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 6957ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 6965d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 6976f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 6986f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 699bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 700f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 7011cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // FIXME: This is ABI dependent. We use the Itanium C++ ABI. 7021cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // http://www.codesourcery.com/public/cxx-abi/abi.html#member-pointers 7031cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // If we ever want to support other ABIs this needs to be abstracted. 7041cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson 705f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 7061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> PtrDiffInfo = 7071cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 7081cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 709f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 710f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 7111cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 7121cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 713f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 7145d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 7155d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 7165d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 7171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 71898be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 7199e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 7205d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 7215d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 7225d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 72344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 7241d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 72544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 72644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 72744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 72844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 72944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 73072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 73172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 7321d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 7331d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 7341d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 7358389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 7368389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 7378389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 7388389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 7391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7401d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 7417176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 7427176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 7431d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 7447176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 7457176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 7467176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 747dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 748a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 7497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 7509fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::SubstTemplateTypeParm: 75149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> 75249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall getReplacementType().getTypePtr()); 75349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 7549fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::Elaborated: 7559fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner return getTypeInfo(cast<ElaboratedType>(T)->getUnderlyingType() 7569fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner .getTypePtr()); 7577da2431c23ef1ee8acb114e39692246e1801afc2John McCall 75818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 75918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 76040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 76118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = Aligned->getAlignment(); 76218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 76318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 76418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 7657532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 7667176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 76718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 76818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 76918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 77018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 77118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 77218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 77318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 77418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 775395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 776395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 777395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 778395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 77918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 78018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 7811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 78218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 7831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(getCanonicalType(T) != T && 78418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 78518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 78618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 78718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 78818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 78918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 7901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 791464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 7929e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 793a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 794a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 79534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 79634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 79734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 79834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 79934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 80034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 8011eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 8021eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 803183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType* CT = T->getAs<ComplexType>()) 8041eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 8051eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 8061eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 8071eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 8081eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 80934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 81034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 81134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 812a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 813a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 814a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 815a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 816a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 817f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 818a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 819a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 820a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 821a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 822a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 823a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 824a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 825a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 826a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 827a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 828a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 829a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 8308e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 8318e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 8328e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 8338e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 8348e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 8358e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 8368e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 8378e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 8388e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 8398e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8408e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 8418e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 8428e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8438e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8449820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 8459820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 84617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 84717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8489820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8499820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8519820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 8529820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8539820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8549820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 8559820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8569820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8579820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 8589820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 8599820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 8609820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 8619820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 86217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 86317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8649820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8659820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8669820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8679820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 8689820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 8699820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8709820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8719820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 8729820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 8739820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8749820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8759820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 876e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// CollectInheritedProtocols - Collect all protocols in current class and 877e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// those inherited by it. 878e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid ASTContext::CollectInheritedProtocols(const Decl *CDecl, 879e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVectorImpl<ObjCProtocolDecl*> &Protocols) { 880e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCInterfaceDecl *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { 881e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 882e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 883e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 884e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Protocols.push_back(Proto); 885e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 886e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 887e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 888e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 889e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 890e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // Categories of this Interface. 891e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (const ObjCCategoryDecl *CDeclChain = OI->getCategoryList(); 892e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CDeclChain; CDeclChain = CDeclChain->getNextClassCategory()) 893e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(CDeclChain, Protocols); 894e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (ObjCInterfaceDecl *SD = OI->getSuperClass()) 895e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian while (SD) { 896e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(SD, Protocols); 897e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian SD = SD->getSuperClass(); 898e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 899e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 900e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 901e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCCategoryDecl *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { 902e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OC->protocol_begin(), 903e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OC->protocol_end(); P != PE; ++P) { 904e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 905e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Protocols.push_back(Proto); 906e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 907e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 908e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 909e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 910e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 911e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 912e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCProtocolDecl *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { 913e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = OP->protocol_begin(), 914e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OP->protocol_end(); P != PE; ++P) { 915e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 916e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Protocols.push_back(Proto); 917e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 918e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 919e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 920e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 921e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 922e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 923e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 924e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 9258e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 9268e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 92717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 92817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 9298e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 9308e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 9318e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9328e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 9338e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 9348e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 9358e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 9368e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9378e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9388e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) { 9408e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 94117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 94217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 9438e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 9448e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 9458e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9468e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 9478e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 9488e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 9498e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 9508e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 9518e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 9528e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9538e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9548e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9558e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9568a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 9578a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 9588a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9598a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9608a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9618a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 9628a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 9638a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9648a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 9658a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 9668a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9678a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9688a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9698a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 9708a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 9718a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9728a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 9738a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 9748a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 9758a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 9768a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 9778a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 9788a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9798a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 9808a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 9818a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 9828a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 9838a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 9848a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9858a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 986b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \brief Allocate an uninitialized DeclaratorInfo. 987b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 988b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// The caller should initialize the memory held by DeclaratorInfo using 989b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// the TypeLoc wrappers. 990b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 991b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \param T the type that will be the basis for type source info. This type 992b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// should refer to how the declarator was written in source code, not to 993b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// what type semantic analysis resolved the declarator to. 994109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCallDeclaratorInfo *ASTContext::CreateDeclaratorInfo(QualType T, 995109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall unsigned DataSize) { 996109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall if (!DataSize) 997109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall DataSize = TypeLoc::getFullDataSizeForType(T); 998109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall else 999109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall assert(DataSize == TypeLoc::getFullDataSizeForType(T) && 1000109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall "incorrect data size provided to CreateDeclaratorInfo!"); 1001109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall 1002b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis DeclaratorInfo *DInfo = 1003b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis (DeclaratorInfo*)BumpAlloc.Allocate(sizeof(DeclaratorInfo) + DataSize, 8); 1004b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis new (DInfo) DeclaratorInfo(T); 1005b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis return DInfo; 1006b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis} 1007b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis 1008a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCallDeclaratorInfo *ASTContext::getTrivialDeclaratorInfo(QualType T, 1009a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall SourceLocation L) { 1010a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall DeclaratorInfo *DI = CreateDeclaratorInfo(T); 1011a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall DI->getTypeLoc().initialize(L); 1012a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall return DI; 1013a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall} 1014a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall 1015b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 1016b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 1017b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 1018b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 1019b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 102044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 1021b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 1022b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 1023532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 1024532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 102544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 10261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCContainerDecl *Key = 1027d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 1028d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 1029d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 103044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 1031453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 1032453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 103329445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson unsigned FieldCount = D->ivar_size(); 10348e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 10358e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian FieldCount += SynthCount; 1036d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 1037453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 1038453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 1039453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 10408e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 1041453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 1042453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 1043453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 10441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 104529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 104629445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 10471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 104844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 104944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 105044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 1051b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1052b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 1053b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 1054b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1055b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 1056b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1057b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 1058b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 1059b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1060b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 106188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 1062464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 1063464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 106498be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 10654b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 10664b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 10674bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 1068464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 1069ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 1070ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 1071ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 1072464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 10734bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 10741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 107529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 1076ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 10771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10785d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 1079464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1080464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1081a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1082a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1083a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1084a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 10850953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getExtQualType(const Type *TypeNode, Qualifiers Quals) { 10860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned Fast = Quals.getFastQualifiers(); 10870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeFastQualifiers(); 10880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Check if we've already instantiated this type. 10900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSetNodeID ID; 10910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQuals::Profile(ID, TypeNode, Quals); 10920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void *InsertPos = 0; 10930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ExtQuals *EQ = ExtQualNodes.FindNodeOrInsertPos(ID, InsertPos)) { 10940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(EQ->getQualifiers() == Quals); 10950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(EQ, Fast); 10960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 10970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 10980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10996b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtQuals *New = new (*this, TypeAlignment) ExtQuals(*this, TypeNode, Quals); 11000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQualNodes.InsertNode(New, InsertPos); 11010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(New, Fast); 11020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 11030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 11040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11050953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getVolatileType(QualType T) { 11060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanT = getCanonicalType(T); 11070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (CanT.isVolatileQualified()) return T; 11080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 11100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 11110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addVolatile(); 11120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 11140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 11150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1116f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1117f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1118f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1119f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1120b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 11210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 11220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 11230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 11240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 11251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an address space specified, it cannot get 11270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 11280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasAddressSpace() && 11290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot be in multiple addr spaces!"); 11300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addAddressSpace(AddressSpace); 11311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1133ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1134ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1135b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 11360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr) { 1137d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1138b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1139d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 11401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11414027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 11426217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 114358f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 11444027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 11454027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 11464027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 11474027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 11481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 11500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 11510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 11520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 11531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an ObjCGC specified, it cannot get 11550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 11560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasObjCGCAttr() && 11570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot have multiple ObjCGCs!"); 11580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addObjCGCAttr(GCAttr); 11591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1161d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1162a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 11632455636163fdd18581d7fdae816433f886d88213Mike StumpQualType ASTContext::getNoReturnType(QualType T) { 11640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType ResultType; 11652455636163fdd18581d7fdae816433f886d88213Mike Stump if (T->isPointerType()) { 11666217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 11670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType = getNoReturnType(Pointee); 11686dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getPointerType(ResultType); 11690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else if (T->isBlockPointerType()) { 11706217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<BlockPointerType>()->getPointeeType(); 11710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType = getNoReturnType(Pointee); 11726dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getBlockPointerType(ResultType); 11730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 11740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert (T->isFunctionType() 11750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall && "can't noreturn qualify non-pointer to function or block type"); 11761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1177bdbeeb50c5d182c591bd8797dc0485921df19e9dBenjamin Kramer if (const FunctionNoProtoType *FNPT = T->getAs<FunctionNoProtoType>()) { 1178bdbeeb50c5d182c591bd8797dc0485921df19e9dBenjamin Kramer ResultType = getFunctionNoProtoType(FNPT->getResultType(), true); 11790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 11800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const FunctionProtoType *F = T->getAs<FunctionProtoType>(); 11810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType 11820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall = getFunctionType(F->getResultType(), F->arg_type_begin(), 11830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall F->getNumArgs(), F->isVariadic(), F->getTypeQuals(), 11840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall F->hasExceptionSpec(), F->hasAnyExceptionSpec(), 11850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall F->getNumExceptions(), F->exception_begin(), true); 11860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 11872455636163fdd18581d7fdae816433f886d88213Mike Stump } 11880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(ResultType, T.getQualifiers()); 11902455636163fdd18581d7fdae816433f886d88213Mike Stump} 11912455636163fdd18581d7fdae816433f886d88213Mike Stump 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 11991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 12031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1207467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1208f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 12091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1212f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12146b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ComplexType *New = new (*this, TypeAlignment) ComplexType(T, Canonical); 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1220f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 1221f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 1222f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 1223f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 1224f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 1225f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 1226f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 1227f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 12361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 12401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1244467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1245f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 12461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1249f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12516b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall PointerType *New = new (*this, TypeAlignment) PointerType(T, Canonical); 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getBlockPointerType - Return the uniqued reference to the type for 12585618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 12595618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1260296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1261296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 12625618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 12635618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 12645618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 12651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12665618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 12675618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 12685618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 12695618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 12701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the block pointee type isn't canonical, this won't be a canonical 12725618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 12735618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 1274467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 12755618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 12761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12775618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 12785618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 12795618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1280f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12815618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 12826b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BlockPointerType *New 12836b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) BlockPointerType(T, Canonical); 12845618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 12855618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 12865618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 12875618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 12885618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 12907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 129154e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) { 12925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 129554e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, SpelledAsLValue); 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 12997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 13017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 130254e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 130354e14c4db764c0636160d26c5bbf491637c83a76John McCall 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 13055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 13065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 130754e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { 130854e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 130954e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); 13107c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13117c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 13127c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 13137c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 13147c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13157c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 13167c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13176b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall LValueReferenceType *New 131854e14c4db764c0636160d26c5bbf491637c83a76John McCall = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, 131954e14c4db764c0636160d26c5bbf491637c83a76John McCall SpelledAsLValue); 13207c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 13217c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 132254e14c4db764c0636160d26c5bbf491637c83a76John McCall 13237c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 13247c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 13257c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13267c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 13277c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 13287c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 13297c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 13307c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 13317c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 133254e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, false); 13337c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13347c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 13357c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 13367c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 13377c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 13387c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 133954e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 134054e14c4db764c0636160d26c5bbf491637c83a76John McCall 13417c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 13427c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 13437c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 134454e14c4db764c0636160d26c5bbf491637c83a76John McCall if (InnerRef || !T.isCanonical()) { 134554e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 134654e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); 13477c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 13507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1351f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13546b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall RValueReferenceType *New 13556b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); 13565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 13585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1361f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1362f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 13631eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 1364f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1365f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1366f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1367f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1368f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1369f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1370f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1371f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1372f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1373f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1374f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1375f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1376f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 137787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { 1378f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1379f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1380f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1381f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1382f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1383f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1384f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 13856b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall MemberPointerType *New 13866b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); 1387f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1388f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1389f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1390f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1391f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 13921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getConstantArrayType - Return the unique reference to the type for an 1393fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 13941eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getConstantArrayType(QualType EltTy, 139538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1396c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1397c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1398923d56d436f750bc1f29db50e641078725558a1bSebastian Redl assert((EltTy->isDependentType() || 1399923d56d436f750bc1f29db50e641078725558a1bSebastian Redl EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && 1400587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1401587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 140238aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 140338aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 140438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 140538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 14061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 14080be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 14091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 14111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ConstantArrayType *ATP = 14127192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 14135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 14141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 14165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 14175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1418467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 14191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1420c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 14215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 14221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantArrayType *NewIP = 14237192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1424f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14276b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType *New = new(*this,TypeAlignment) 14286b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 14297192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 14305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 14315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1434bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1435bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 14367e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 14377e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1438c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 14397e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14407e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1441c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1442c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1443c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 14446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType *New = new(*this, TypeAlignment) 14456b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType(EltTy, QualType(), NumElts, ASM, EltTypeQuals, Brackets); 1446c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1447c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1448c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1449c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1450c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1451c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1452898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1453898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 145404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 14557e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 14567e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1457898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 14587e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14597e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 14601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1461898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1462898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 146304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor llvm::FoldingSetNodeID ID; 14641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 146504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor EltTypeQuals, NumElts); 1466898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 146704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 146804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *Canon 146904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 147004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 147104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 147204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 147304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 14746b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14756b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(Canon, 0), 14766b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 147704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 147804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 147904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 14806b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14816b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(), 14826b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 148304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 148404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 148504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 148604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 148704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 14886b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14896b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, Canon, 14906b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 149104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 149204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 14931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1494898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1495898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1496898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1497898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1498c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1499c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1500c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1501c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 15020be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1503c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1504c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 15051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (IncompleteArrayType *ATP = 1506c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1507c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1508c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1509c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1510c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1511c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1512c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1513467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 1514f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 15152bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1516c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1517c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1518c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1519c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1520f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15212bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1522c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 15236b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType *New = new (*this, TypeAlignment) 15246b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType(EltTy, Canonical, ASM, EltTypeQuals); 1525c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1526c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1527c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1528c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1529fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1530fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 153173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 153273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 153373322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 15345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 15351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1536f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 153773322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 15381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 15405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 15411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::Vector); 15425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 15435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 15445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 15455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 15475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 15485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1549467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1550f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 15511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 15535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1554f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15566b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType *New = new (*this, TypeAlignment) 15576b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType(vecType, NumElts, Canonical); 15585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 15595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 15605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1563213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 156473322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1565213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 156673322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 15671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1568f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1569213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 15701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 157173322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 157273322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 15731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 157473322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 157573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 157673322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 157773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 157873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 157973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 158073322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 1581467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1582213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 15831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 158473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 158573322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1586f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 158773322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 15886b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType *New = new (*this, TypeAlignment) 15896b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType(vecType, NumElts, Canonical); 159073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 159173322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 159273322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 159373322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 159473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 15951eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 15969cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 15979cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 15982ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 15991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 16002ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 16011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16022ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 16032ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 16042ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 16052ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 16062ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 16072ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 16082ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 16096b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16106b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), 16116b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall SizeExpr, AttrLoc); 16122ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 16132ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 16142ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 16156b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16166b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, 16176b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall AttrLoc); 16182ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 16192ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 16202ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 16212ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 16226b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16236b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, Canon, SizeExpr, AttrLoc); 16242ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16252ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16279cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 16289cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 16299cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 16309cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 163172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 16325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 16332455636163fdd18581d7fdae816433f886d88213Mike StumpQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, bool NoReturn) { 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 16372455636163fdd18581d7fdae816433f886d88213Mike Stump FunctionNoProtoType::Profile(ID, ResultTy, NoReturn); 16381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionNoProtoType *FT = 164172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 16431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1645467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!ResultTy.isCanonical()) { 16462455636163fdd18581d7fdae816433f886d88213Mike Stump Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy), NoReturn); 16471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 164972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 165072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1651f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16546b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType *New = new (*this, TypeAlignment) 16556b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType(ResultTy, Canonical, NoReturn); 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 165772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 16585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 166361710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1664971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1665465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1666465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 16672455636163fdd18581d7fdae816433f886d88213Mike Stump const QualType *ExArray, bool NoReturn) { 16685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 167172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1672465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 16732455636163fdd18581d7fdae816433f886d88213Mike Stump NumExs, ExArray, NoReturn); 16745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionProtoType *FTP = 167772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1679465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1680465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 168154e14c4db764c0636160d26c5bbf491637c83a76John McCall bool isCanonical = !hasExceptionSpec && ResultTy.isCanonical(); 16825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 168354e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!ArgArray[i].isCanonicalAsParam()) 16845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 16855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1687465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 16885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 16895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 16905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 16915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 16925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 169354e14c4db764c0636160d26c5bbf491637c83a76John McCall CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); 1694465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1695f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1696beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 169747259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor isVariadic, TypeQuals, false, 169847259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor false, 0, 0, NoReturn); 1699465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 17005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 170172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 170272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1703f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 17045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1705465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 170672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1707465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1708465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 17091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionProtoType *FTP = 1710465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1711465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 17126b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumExs*sizeof(QualType), TypeAlignment); 171372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1714465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 17152455636163fdd18581d7fdae816433f886d88213Mike Stump ExArray, NumExs, Canonical, NoReturn); 17165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 171772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 17185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 17195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17212ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 17222ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 17234b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 17241e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 17252ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 17261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17271e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 17282ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1729fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1730fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 17319fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (ObjCInterfaceDecl *ObjCInterface 17329fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump = dyn_cast<ObjCInterfaceDecl>(Decl)) 17332ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 173449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1735c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1736566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1737566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1738f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 17396b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) RecordType(Record); 17409fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1741566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1742566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1743f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 17446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) EnumType(Enum); 17459fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 17462ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 174749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 17484b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 174949aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 17502ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 17512ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 17525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 17535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 17545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 17555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 17561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1757f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 17586b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new(*this, TypeAlignment) 17596b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypedefType(Type::Typedef, Decl, Canonical); 17605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 17615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 17625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 176449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Retrieve a substitution-result type. 176549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallQualType 176649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, 176749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 1768467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(Replacement.isCanonical() 176949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall && "replacement types must always be canonical"); 177049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 177149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall llvm::FoldingSetNodeID ID; 177249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); 177349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void *InsertPos = 0; 177449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType *SubstParm 177549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 177649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 177749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall if (!SubstParm) { 177849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstParm = new (*this, TypeAlignment) 177949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(Parm, Replacement); 178049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Types.push_back(SubstParm); 178149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); 178249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 178349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 178449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return QualType(SubstParm, 0); 178549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall} 178649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 1787fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 17881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter or parameter pack with the given depth, index, and (optionally) 178976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 17901eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 179176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1792fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1793fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 179476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1795fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 17961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType *TypeParm 1797fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1798fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1799fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1800fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 18011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 180276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 180376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 18046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 18056b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack, Name, Canon); 180676e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 18076b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 18086b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack); 1809fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1810fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1811fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1812fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1813fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1814fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1815fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 18161eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 18177532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 1818833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *Args, 1819833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall unsigned NumArgs, 1820833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall QualType Canon) { 1821833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall llvm::SmallVector<TemplateArgument, 4> ArgVec; 1822833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.reserve(NumArgs); 1823833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall for (unsigned i = 0; i != NumArgs; ++i) 1824833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.push_back(Args[i].getArgument()); 1825833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1826833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return getTemplateSpecializationType(Template, ArgVec.data(), NumArgs, Canon); 1827833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall} 1828833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1829833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallQualType 1830833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallASTContext::getTemplateSpecializationType(TemplateName Template, 18317532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 18327532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 18337532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 1834b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 1835b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 1836b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor else { 1837b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor // Build the canonical template specialization type. 18381275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateName CanonTemplate = getCanonicalTemplateName(Template); 18391275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::SmallVector<TemplateArgument, 4> CanonArgs; 18401275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.reserve(NumArgs); 18411275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (unsigned I = 0; I != NumArgs; ++I) 18421275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 18431275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 18441275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Determine whether this canonical template specialization type already 18451275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // exists. 18461275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::FoldingSetNodeID ID; 18471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType::Profile(ID, CanonTemplate, 1848828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor CanonArgs.data(), NumArgs, *this); 18491275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 18501275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *InsertPos = 0; 18511275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 18521275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 18531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18541275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor if (!Spec) { 18551275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate a new canonical template specialization type. 18561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 18571275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor sizeof(TemplateArgument) * NumArgs), 18586b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 18591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, 18601275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.data(), NumArgs, 1861b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon); 18621275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Types.push_back(Spec); 18631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 18641275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 18651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1866b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (Canon.isNull()) 1867b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = QualType(Spec, 0); 18681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(Canon->isDependentType() && 18691275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor "Non-dependent template-id type must have a canonical type"); 1870b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor } 1871fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 18721275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 18731275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 18741275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 18751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 187640808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 18776b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 18781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType *Spec 18791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = new (Mem) TemplateSpecializationType(*this, Template, Args, NumArgs, 1880828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 18811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 188255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 18831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(Spec, 0); 188455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 188555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 18861eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 1887ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1888e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1889e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1890ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1891e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1892e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 18931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualifiedNameType *T 1894e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1895e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1896e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1897e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 18981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T = new (*this) QualifiedNameType(NNS, NamedType, 1899ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1900e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1901e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1902e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1903e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1904e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 19051eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1906d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1907d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1908d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1909d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1910d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1911d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1912d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1913d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1914d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1915d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1916d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1917d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1918d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1919d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 19201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 1921d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1922d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1923d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1924d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1925d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1926d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1927d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 19281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 1929d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1930d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 19311eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 19321eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpASTContext::getTypenameType(NestedNameSpecifier *NNS, 19331734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 19341734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 19351734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 19361734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 19371734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 19381734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 19391734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 19401734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 19411734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 1942183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall = CanonType->getAs<TemplateSpecializationType>(); 19431734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 19441734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 19451734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 19461734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 19471734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 19481734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 19491734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 19501734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 19511734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 19521734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 19531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 19541734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 19551734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 19561734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 19571734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 19581734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 19591734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 19601734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 19611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 19621734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 19631734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 19647da2431c23ef1ee8acb114e39692246e1801afc2John McCallQualType 19657da2431c23ef1ee8acb114e39692246e1801afc2John McCallASTContext::getElaboratedType(QualType UnderlyingType, 19667da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::TagKind Tag) { 19677da2431c23ef1ee8acb114e39692246e1801afc2John McCall llvm::FoldingSetNodeID ID; 19687da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::Profile(ID, UnderlyingType, Tag); 19691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19707da2431c23ef1ee8acb114e39692246e1801afc2John McCall void *InsertPos = 0; 19717da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 19727da2431c23ef1ee8acb114e39692246e1801afc2John McCall if (T) 19737da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 19747da2431c23ef1ee8acb114e39692246e1801afc2John McCall 19757da2431c23ef1ee8acb114e39692246e1801afc2John McCall QualType Canon = getCanonicalType(UnderlyingType); 19767da2431c23ef1ee8acb114e39692246e1801afc2John McCall 19777da2431c23ef1ee8acb114e39692246e1801afc2John McCall T = new (*this) ElaboratedType(UnderlyingType, Tag, Canon); 19787da2431c23ef1ee8acb114e39692246e1801afc2John McCall Types.push_back(T); 19797da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedTypes.InsertNode(T, InsertPos); 19807da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 19817da2431c23ef1ee8acb114e39692246e1801afc2John McCall} 19827da2431c23ef1ee8acb114e39692246e1801afc2John McCall 198388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 198488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 198588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 198688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 19872e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 198888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 198988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 199054e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic bool areSortedAndUniqued(ObjCProtocolDecl **Protocols, 199154e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned NumProtocols) { 199254e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols == 0) return true; 199354e14c4db764c0636160d26c5bbf491637c83a76John McCall 199454e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 1; i != NumProtocols; ++i) 199554e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!CmpProtocolNames(Protocols[i-1], Protocols[i])) 199654e14c4db764c0636160d26c5bbf491637c83a76John McCall return false; 199754e14c4db764c0636160d26c5bbf491637c83a76John McCall return true; 199854e14c4db764c0636160d26c5bbf491637c83a76John McCall} 199954e14c4db764c0636160d26c5bbf491637c83a76John McCall 200054e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic void SortAndUniqueProtocols(ObjCProtocolDecl **Protocols, 200188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 200288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 20031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 200488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 200588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 200688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 200788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 200888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 200988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 201088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 201188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2012d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 2013d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 201414108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 20151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCProtocolDecl **Protocols, 2016d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 2017d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 201814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 2019d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 2020d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 2021d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 2022d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 2023d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QT, 0); 2024d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 202554e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 202654e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 202754e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!InterfaceT.isCanonical() || 202854e14c4db764c0636160d26c5bbf491637c83a76John McCall !areSortedAndUniqued(Protocols, NumProtocols)) { 202954e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!areSortedAndUniqued(Protocols, NumProtocols)) { 203054e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 203154e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 203254e14c4db764c0636160d26c5bbf491637c83a76John McCall 203354e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 203454e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 203554e14c4db764c0636160d26c5bbf491637c83a76John McCall 203654e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 203754e14c4db764c0636160d26c5bbf491637c83a76John McCall &Sorted[0], UniqueCount); 203854e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 203954e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 204054e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 204154e14c4db764c0636160d26c5bbf491637c83a76John McCall } 204254e14c4db764c0636160d26c5bbf491637c83a76John McCall 204354e14c4db764c0636160d26c5bbf491637c83a76John McCall // Regenerate InsertPos. 204454e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 204554e14c4db764c0636160d26c5bbf491637c83a76John McCall } 204654e14c4db764c0636160d26c5bbf491637c83a76John McCall 2047d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // No Match; 20486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ObjCObjectPointerType *QType = new (*this, TypeAlignment) 204954e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCObjectPointerType(Canonical, InterfaceT, Protocols, NumProtocols); 20501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2051d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 2052d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 2053d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 2054d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 205588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2056c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 2057c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 2058c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 2059a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 20604b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 2061c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 20621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20634b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 2064c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 2065c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 20664b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 20671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 206854e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 206954e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 207054e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols && !areSortedAndUniqued(Protocols, NumProtocols)) { 207154e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 207254e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 20734b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 207454e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 207554e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 207624fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 207754e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCInterfaceType(Decl, &Sorted[0], UniqueCount); 207854e14c4db764c0636160d26c5bbf491637c83a76John McCall 207954e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos); 208054e14c4db764c0636160d26c5bbf491637c83a76John McCall } 208154e14c4db764c0636160d26c5bbf491637c83a76John McCall 208254e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceType *QType = new (*this, TypeAlignment) 208354e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceType(Canonical, const_cast<ObjCInterfaceDecl*>(Decl), 208454e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 208524fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 208624fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis Types.push_back(QType); 208754e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.InsertNode(QType, InsertPos); 208824fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis return QualType(QType, 0); 208924fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis} 209024fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 209172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 209272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 20939752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 20941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// DeclRefExpr's. This doesn't effect the type checker, since it operates 20959752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 209672564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 2097dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 2098b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 2099b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 2100b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 21011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2102b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 2103b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 2104b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 2105b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 2106b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 2107b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 21086b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, 2109b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 2110b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2111b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 2112b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 21136b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon 21146b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); 2115b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 2116b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 2117b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2118b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 2119dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 21206b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); 2121dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 21229752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 21239752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 2124d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2125d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 21269752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 21279752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 21289752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 21291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 21309752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 2131d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 2132f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 21336b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeOfType *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); 21349752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 21359752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 2136d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2137d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 213860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 213960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 214060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 2141a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 2142a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 21431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 214460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 214560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 214660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 214760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 214860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 214960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 215060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 215160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 215260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 215360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 215460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 215560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 215660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 215760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 215860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 21591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 216060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 21611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 216360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 216460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 216560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 21661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 216760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 216860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 216960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 2170395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2171395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 2172395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 21731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 2174395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2175395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2176dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 21779d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 21789d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 21799d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 21801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21819d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 21829d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 21839d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 21849d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 21859d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 21869d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 21876b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, DependentTy, 21889d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 21899d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 21909d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 21919d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 21926b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); 21939d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 21949d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 21959d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 21969d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2197dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 21986b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, T, getCanonicalType(T)); 2199dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2200395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2201395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2202395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2203395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 22045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 22055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 2206e607ed068334bacb8d7b093996b4671c6ca79e25Mike StumpQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 2207d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 2208e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // FIXME: What is the design on getTagDeclType when it requires casting 2209e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // away const? mutable? 2210e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump return getTypeDeclType(const_cast<TagDecl*>(Decl)); 22115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 22125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 22141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 22151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// needs to agree with the definition in <stddef.h>. 22165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 2217b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 22185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 22195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 222064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 222164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 222264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 222364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 222464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 222564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 222664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 222764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 222864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 222964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 223064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 223164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 223264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 223364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 22348b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 22358b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 22368b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2237b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 22388b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 22398b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2240e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2241e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2242e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2243e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 224454e14c4db764c0636160d26c5bbf491637c83a76John McCallCanQualType ASTContext::getCanonicalParamType(QualType T) { 224554e14c4db764c0636160d26c5bbf491637c83a76John McCall // Push qualifiers into arrays, and then discard any remaining 224654e14c4db764c0636160d26c5bbf491637c83a76John McCall // qualifiers. 224754e14c4db764c0636160d26c5bbf491637c83a76John McCall T = getCanonicalType(T); 224854e14c4db764c0636160d26c5bbf491637c83a76John McCall const Type *Ty = T.getTypePtr(); 224954e14c4db764c0636160d26c5bbf491637c83a76John McCall 225054e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Result; 225154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (isa<ArrayType>(Ty)) { 225254e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getArrayDecayedType(QualType(Ty,0)); 225354e14c4db764c0636160d26c5bbf491637c83a76John McCall } else if (isa<FunctionType>(Ty)) { 225454e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getPointerType(QualType(Ty, 0)); 225554e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 225654e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = QualType(Ty, 0); 225754e14c4db764c0636160d26c5bbf491637c83a76John McCall } 225854e14c4db764c0636160d26c5bbf491637c83a76John McCall 225954e14c4db764c0636160d26c5bbf491637c83a76John McCall return CanQualType::CreateUnsafe(Result); 226054e14c4db764c0636160d26c5bbf491637c83a76John McCall} 226154e14c4db764c0636160d26c5bbf491637c83a76John McCall 226277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 226377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 226477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 226577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 226677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 226777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 226850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 22690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 22700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ptr = Quals.strip(T); 22710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanType = Ptr->getCanonicalTypeInternal(); 22720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 22730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // The canonical internal type will be the canonical type *except* 22740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // that we push type qualifiers down through array types. 22751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If there are no new qualifiers to push down, stop here. 22770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!Quals.hasQualifiers()) 227850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2279c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 22800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the type qualifiers are on an array type, get the canonical 22810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type of the array with the qualifiers applied to the element 22820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type. 2283c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2284c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 22850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return CanQualType::CreateUnsafe(getQualifiedType(CanType, Quals)); 22861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2287c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2288c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 22890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(AT->getElementType(), Quals); 2290c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 22911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2292c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 229350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 229450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 229550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 22960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2297c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 229850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 229950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 23000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 23011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2302898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 230350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 230450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 2305bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2306bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 230750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 23080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 230987a924e37dc40c6e3e2b33d1dbd646aeccf4c15bDouglas Gregor DSAT->getBracketsRange())->getCanonicalTypeInternal()); 2310898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2311c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 231250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2313bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2314bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 231550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 23160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 231750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2318c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2319c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 232025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 232125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 232225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 232325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 232497fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 232525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 23261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If this template name refers to a set of overloaded function templates, 2327d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor /// the canonical template name merely stores the set of function templates. 23286ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (OverloadedFunctionDecl *Ovl = Name.getAsOverloadedFunctionDecl()) { 23296ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor OverloadedFunctionDecl *CanonOvl = 0; 23306ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor for (OverloadedFunctionDecl::function_iterator F = Ovl->function_begin(), 23316ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor FEnd = Ovl->function_end(); 23326ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor F != FEnd; ++F) { 23336ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor Decl *Canon = F->get()->getCanonicalDecl(); 23346ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (CanonOvl || Canon != F->get()) { 23356ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (!CanonOvl) 23361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CanonOvl = OverloadedFunctionDecl::Create(*this, 23371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Ovl->getDeclContext(), 23386ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor Ovl->getDeclName()); 23391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23406ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor CanonOvl->addOverload( 23416ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor AnyFunctionDecl::getFromNamedDecl(cast<NamedDecl>(Canon))); 23426ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 23436ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 23441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23456ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor return TemplateName(CanonOvl? CanonOvl : Ovl); 23466ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 23471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 234825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 234925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 235025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 235125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 235225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 23531eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateArgument 23541275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 23551275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 23561275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 23571275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 23581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23591275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 23601275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 23611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23621275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 2363833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(Arg.getAsDecl()->getCanonicalDecl()); 23641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2365788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor case TemplateArgument::Template: 2366788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor return TemplateArgument(getCanonicalTemplateName(Arg.getAsTemplate())); 2367788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor 23681275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 2369833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(*Arg.getAsIntegral(), 23701275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 23711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23721275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 2373833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(getCanonicalType(Arg.getAsType())); 23741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23751275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 23761275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 23771275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 23781275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 23791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 23801275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 23811275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 23821275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 23831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23841275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 23851275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 23861275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 23871275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 23881275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 23891275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 23901275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 23911275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 23921275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 23931275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 23941275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2395d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2396d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 23971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!NNS) 2398d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2399d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2400d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2401d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2402d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 24031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 2404d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2405d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2406d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2407d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2408d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2409d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2410d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2411d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2412d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2413d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2414d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 24151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 0, 24161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2417d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2418d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2419d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2420d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2421d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2422d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2423d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2424d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2425d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2426d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2427d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2428d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2429c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2430c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2431c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 24320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T.hasQualifiers()) { 2433c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2434c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2435c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2436c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 24371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Handle the common negative case fast. 2439c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 24400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<ArrayType>(CType)) 2441c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 24421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Apply any qualifiers from the array type to the element type. This 2444c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2445c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 24461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2447c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2448c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 244950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 24500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 24510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 24520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ty = Qs.strip(T.getDesugaredType()); 24531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2454c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2455c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 24560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ATy == 0 || Qs.empty()) 2457c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 24581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2459c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2460c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2461c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2462c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 24630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(ATy->getElementType(), Qs); 24641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2465c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2466c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2467c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 24680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2469c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2470c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2471c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 24720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 2473898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 24741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const DependentSizedArrayType *DSAT 2475898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2476898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 24771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getDependentSizedArrayType(NewEltTy, 2478bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2479bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 2480898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 24810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 24827e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 24831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2484c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 24857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 2486bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 24870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getSizeExpr()->Retain() : 0, 2488c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 24890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 24907e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 249177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 249277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 249377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2494e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2495e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2496e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2497e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2498e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2499e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2500e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2501c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2502c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2503c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2504c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2505c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2506c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 25071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2508c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2509e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2510e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 25110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(PtrTy, PrettyArrayType->getIndexTypeQualifiers()); 2512e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2513e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 25145e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 25150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 25165e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 25170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *UT = Qs.strip(QT); 25185e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 25195e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 25206dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump } else { 25210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs.apply(QT); 25225e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 25235e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 25245e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 25255e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2526fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders CarlssonQualType ASTContext::getBaseElementType(const ArrayType *AT) { 2527fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson QualType ElemTy = AT->getElementType(); 25281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2529fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson if (const ArrayType *AT = getAsArrayType(ElemTy)) 2530fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson return getBaseElementType(AT); 25311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25326183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 25336183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 25346183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 25350de78998e7bda473b408437053e48661b510d453Fariborz Jahanian/// getConstantArrayElementCount - Returns number of constant array elements. 25361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpuint64_t 25370de78998e7bda473b408437053e48661b510d453Fariborz JahanianASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 25380de78998e7bda473b408437053e48661b510d453Fariborz Jahanian uint64_t ElementCount = 1; 25390de78998e7bda473b408437053e48661b510d453Fariborz Jahanian do { 25400de78998e7bda473b408437053e48661b510d453Fariborz Jahanian ElementCount *= CA->getSize().getZExtValue(); 25410de78998e7bda473b408437053e48661b510d453Fariborz Jahanian CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 25420de78998e7bda473b408437053e48661b510d453Fariborz Jahanian } while (CA); 25430de78998e7bda473b408437053e48661b510d453Fariborz Jahanian return ElementCount; 25440de78998e7bda473b408437053e48661b510d453Fariborz Jahanian} 25450de78998e7bda473b408437053e48661b510d453Fariborz Jahanian 25465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 25475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2548a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2549183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) 25505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2551a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2552183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall assert(T->getAs<BuiltinType>() && "getFloatingRank(): not a floating type"); 2553183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall switch (T->getAs<BuiltinType>()->getKind()) { 2554a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 25555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 25565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 25575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 25585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 25605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 25621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// point or a complex type (based on typeDomain/typeSize). 2563716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2564716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 25651361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 25661361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 25671361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 25681361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 25691361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2570716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2571f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2572f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2573f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2574f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2575f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 25761361b11066239ea15764a2a844405352d87296b3Chris Lattner 25771361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 25781361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 25791361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 25801361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 25811361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 25821361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 25835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 25855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 25877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 25887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 25891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 2590a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2591a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2592a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 25931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2594a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2595fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2596a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2597fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2598fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 25995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 26005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2601f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2602f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2603f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2604f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2605467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(T->isCanonicalUnqualified() && "T should be canonicalized"); 2606f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2607f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 2608f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2609a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2610a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2611a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2612f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2613f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2614f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2615f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2616f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2617f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2618f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 2619f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 2620f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 26211b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 2622f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 2623f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2624f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 26257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 26267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2627f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 26287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 26297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 26307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 26317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2632f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 26337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 26347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2635f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 26367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 26377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2638f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 26397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 26407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2641f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 26427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 26437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2644f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 26452df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 26462df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 26472df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2648f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2649f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2650f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 265104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \brief Whether this is a promotable bitfield reference according 265204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 265304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// 265404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \returns the type this bit-field will promote to, or NULL if no 265504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// promotion occurs. 265604e8357f6801e9ff52673e7e899a67bbabf9de93Eli FriedmanQualType ASTContext::isPromotableBitField(Expr *E) { 265704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman FieldDecl *Field = E->getBitField(); 265804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (!Field) 265904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 266004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 266104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman QualType FT = Field->getType(); 266204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 266304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 266404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t BitWidth = BitWidthAP.getZExtValue(); 266504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 266604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // GCC extension compatibility: if the bit-field size is less than or equal 266704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // to the size of int, it gets promoted no matter what its type is. 266804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // For instance, unsigned long bf : 4 gets promoted to signed int. 266904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth < IntSize) 267004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return IntTy; 267104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 267204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth == IntSize) 267304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 267404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 267504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // Types bigger than int are not subject to promotions, and therefore act 267604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // like the base type. 267704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // FIXME: This doesn't quite match what gcc does, but what gcc does here 267804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // is ridiculous. 267904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 268004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman} 268104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 2682a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// getPromotedIntegerType - Returns the type that Promotable will 2683a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 2684a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// integer type. 2685a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType ASTContext::getPromotedIntegerType(QualType Promotable) { 2686a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(!Promotable.isNull()); 2687a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isPromotableIntegerType()); 2688a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (Promotable->isSignedIntegerType()) 2689a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return IntTy; 2690a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t PromotableSize = getTypeSize(Promotable); 2691a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 2692a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 2693a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 2694a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 2695a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 26961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getIntegerTypeOrder - Returns the highest ranked integer type: 26977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 26981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 26997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2700f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2701f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 27027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 27031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2704f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2705f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 27061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 27087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 27091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 27117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 27127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 27137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 27141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 27167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 27177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 27187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 27197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 27201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 27227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 27231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 27247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 27257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 27267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 27277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 27287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 27297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 27301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 27327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 27331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 27347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 27355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 273671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 27371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// getCFConstantStringType - Return the type used for constant CFStrings. 273871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 273971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 27401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CFConstantStringTypeDecl = 27411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2742df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2743f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 27441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 274571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 27460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[0] = getPointerType(IntTy.withConst()); 2747f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2748f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 274971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 27500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[2] = getPointerType(CharTy.withConst()); 275171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 27521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = LongTy; 27531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 275444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 275544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 27561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 275744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 2758a1d5662d96465f0fddf8819d245da4d19b892effArgyrios Kyrtzidis FieldTypes[i], /*DInfo=*/0, 27591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 27604afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 276117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 276244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 276344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 276444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 276571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 27661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 276771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 27688467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2769b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2770319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 27716217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2772319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2773319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2774319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2775319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 27761eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getObjCFastEnumerationStateType() { 2777bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 277844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 277944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 278044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 27811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2782bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2783bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2784de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2785bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2786bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2787bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2788bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 27891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 279044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 27911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, 27921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCFastEnumerationStateTypeDecl, 27931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 0, 2794a1d5662d96465f0fddf8819d245da4d19b892effArgyrios Kyrtzidis FieldTypes[i], /*DInfo=*/0, 27951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 27964afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 279717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 279844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 27991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 280044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2801bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 28021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2803bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2804bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2805bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2806adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike StumpQualType ASTContext::getBlockDescriptorType() { 2807adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump if (BlockDescriptorType) 2808adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2809adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2810adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 2811adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Needs the FlagAppleBlock bit. 2812adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T = RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2813adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get("__block_descriptor")); 2814adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2815adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 2816adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2817adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2818adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2819adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2820adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 2821adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "reserved", 2822083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size" 2823adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2824adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2825adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 2; ++i) { 2826adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldDecl *Field = FieldDecl::Create(*this, 2827adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T, 2828adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump SourceLocation(), 2829adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 2830adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldTypes[i], /*DInfo=*/0, 2831adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*BitWidth=*/0, 2832adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*Mutable=*/false); 2833adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 2834adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 2835adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2836adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->completeDefinition(*this); 2837adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2838adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = T; 2839adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2840adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2841adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2842adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2843adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stumpvoid ASTContext::setBlockDescriptorType(QualType T) { 2844adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const RecordType *Rec = T->getAs<RecordType>(); 2845adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump assert(Rec && "Invalid BlockDescriptorType"); 2846adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = Rec->getDecl(); 2847adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2848adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2849083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike StumpQualType ASTContext::getBlockDescriptorExtendedType() { 2850083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump if (BlockDescriptorExtendedType) 2851083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 2852083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2853083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump RecordDecl *T; 2854083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump // FIXME: Needs the FlagAppleBlock bit. 2855083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T = RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2856083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump &Idents.get("__block_descriptor_withcopydispose")); 2857083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2858083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump QualType FieldTypes[] = { 2859083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 2860083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 2861083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy), 2862083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy) 2863083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 2864083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2865083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const char *FieldNames[] = { 2866083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "reserved", 2867083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size", 2868083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "CopyFuncPtr", 2869083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "DestroyFuncPtr" 2870083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 2871083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2872083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump for (size_t i = 0; i < 4; ++i) { 2873083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump FieldDecl *Field = FieldDecl::Create(*this, 2874083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T, 2875083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceLocation(), 2876083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump &Idents.get(FieldNames[i]), 2877083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump FieldTypes[i], /*DInfo=*/0, 2878083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*BitWidth=*/0, 2879083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*Mutable=*/false); 2880083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->addDecl(Field); 2881083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump } 2882083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2883083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->completeDefinition(*this); 2884083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2885083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = T; 2886083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2887083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 2888083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 2889083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2890083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stumpvoid ASTContext::setBlockDescriptorExtendedType(QualType T) { 2891083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const RecordType *Rec = T->getAs<RecordType>(); 2892083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump assert(Rec && "Invalid BlockDescriptorType"); 2893083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = Rec->getDecl(); 2894083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 2895083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2896af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stumpbool ASTContext::BlockRequiresCopying(QualType Ty) { 2897af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isBlockPointerType()) 2898af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2899af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (isObjCNSObjectType(Ty)) 2900af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2901af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isObjCObjectPointerType()) 2902af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2903af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return false; 2904af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump} 2905af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2906af7b44d847d3e44c43346d508b2e55a6254b6e9dMike StumpQualType ASTContext::BuildByRefType(const char *DeclName, QualType Ty) { 2907af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // type = struct __Block_byref_1_X { 2908ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // void *__isa; 2909af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // struct __Block_byref_1_X *__forwarding; 2910ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __flags; 2911ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __size; 291238e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__copy_helper; // as needed 291338e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__destroy_help // as needed 2914af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // int X; 2915ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // } * 2916ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2917af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump bool HasCopyAndDispose = BlockRequiresCopying(Ty); 2918af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2919af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // FIXME: Move up 29204d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockByRefTypeID = 0; 2921f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 2922f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__Block_byref_" << 2923f5942a44880be26878592eb052b737579349411eBenjamin Kramer ++UniqueBlockByRefTypeID << '_' << DeclName; 2924af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump RecordDecl *T; 2925af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T = RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2926f5942a44880be26878592eb052b737579349411eBenjamin Kramer &Idents.get(Name.str())); 2927af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->startDefinition(); 2928af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType Int32Ty = IntTy; 2929af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump assert(getIntWidth(IntTy) == 32 && "non-32bit int not supported"); 2930af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType FieldTypes[] = { 2931af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 2932af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(getTagDeclType(T)), 2933af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 2934af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 2935af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 2936af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 2937af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Ty 2938af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 2939af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2940af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump const char *FieldNames[] = { 2941af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__isa", 2942af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__forwarding", 2943af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__flags", 2944af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__size", 2945af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__copy_helper", 2946af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__destroy_helper", 2947af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump DeclName, 2948af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 2949af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2950af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump for (size_t i = 0; i < 7; ++i) { 2951af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (!HasCopyAndDispose && i >=4 && i <= 5) 2952af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump continue; 2953af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 2954af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(FieldNames[i]), 2955af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldTypes[i], /*DInfo=*/0, 2956af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump /*BitWidth=*/0, /*Mutable=*/false); 2957af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->addDecl(Field); 2958af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump } 2959af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2960af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->completeDefinition(*this); 2961af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2962af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return getPointerType(getTagDeclType(T)); 2963ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump} 2964ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2965ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2966ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike StumpQualType ASTContext::getBlockParmType( 2967083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump bool BlockHasCopyDispose, 2968ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump llvm::SmallVector<const Expr *, 8> &BlockDeclRefDecls) { 2969adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Move up 29704d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockParmTypeID = 0; 2971f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 2972f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__block_literal_" 2973f5942a44880be26878592eb052b737579349411eBenjamin Kramer << ++UniqueBlockParmTypeID; 2974adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 2975adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T = RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2976f5942a44880be26878592eb052b737579349411eBenjamin Kramer &Idents.get(Name.str())); 2977adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 2978adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 2979adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 2980adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 2981adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 2982083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump (BlockHasCopyDispose ? 2983083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorExtendedType()) : 2984083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorType())) 2985adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2986adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2987adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 2988adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__isa", 2989adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__flags", 2990adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__reserved", 2991adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__FuncPtr", 2992adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__descriptor" 2993adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2994adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2995adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 5; ++i) { 2996ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 2997adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 2998adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldTypes[i], /*DInfo=*/0, 2999ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3000ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump T->addDecl(Field); 3001ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3002ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3003ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump for (size_t i = 0; i < BlockDeclRefDecls.size(); ++i) { 3004ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const Expr *E = BlockDeclRefDecls[i]; 3005ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); 3006ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump clang::IdentifierInfo *Name = 0; 3007ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE) { 3008ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const ValueDecl *D = BDRE->getDecl(); 3009ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name = &Idents.get(D->getName()); 3010ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3011ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump QualType FieldType = E->getType(); 3012ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3013ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE && BDRE->isByRef()) 3014af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType = BuildByRefType(BDRE->getDecl()->getNameAsCString(), 3015af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType); 3016ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3017ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3018ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name, FieldType, /*DInfo=*/0, 3019ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3020adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3021adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3022adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3023adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->completeDefinition(*this); 3024ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3025ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump return getPointerType(getTagDeclType(T)); 3026adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3027adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3028319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 30296217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 3030319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 3031319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 3032319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 3033319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3034e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 3035e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 30362d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 3037e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 3038bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 3039bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 30401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 304185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 304285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 304385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 3044a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 304533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 3046a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 304798be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 30481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 304933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 305033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 305198be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 305233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 305333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 305498be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 305598be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 305633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 305733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 3058a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 305933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 30601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 3061e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3062c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3063ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 3064a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 306533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 30660d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 306733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 306833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 306933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 307033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 307198be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 307233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 307333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 307433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 307589951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 307689951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 307789951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 307889951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 3079a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 308033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 308133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 308233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 308333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 308433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 30851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 308633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 308733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 308889951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 308989951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 309089951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 30911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType PType = PVDecl->getOriginalType(); 30924306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 3093ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 3094ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 3095ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 3096bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 3097ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3098ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 3099ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3100ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 310133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 31024306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 31030d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 310433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 3105a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 310633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 310733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 310833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 3109c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 311083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 3111c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 3112c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 31131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Property attributes are stored as a comma-delimited C string. The simple 31141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// attributes readonly and bycopy are encoded as single characters. The 31151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parametrized attributes, getter=name, setter=name, and ivar=name, are 31161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// encoded as single characters, followed by an identifier. Property types 31171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// are also encoded as a parametrized attribute. The characters used to encode 311883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 311983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 312083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 312183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 312283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 312383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 312483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 312583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 312683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 312783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 312883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 312983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 313083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 313183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 313283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 313383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 31341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 3135c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 3136e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3137c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 3138c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 3139c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 3140c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3141c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 3142c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 31431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCCategoryImplDecl *CID = 3144c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 3145c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 314617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 3147653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3148c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3149c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3150c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3151c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3152c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3153c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3154c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3155c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3156c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3157c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 315861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 3159c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 316017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 3161653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3162c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3163c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3164c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3165c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3166c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3167c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3168c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3169c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 31701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3171c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3172c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3173c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3174c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3175c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 3176c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3177c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 3178090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 3179090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 31801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 3181090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 3182090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 3183c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3184c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 3185c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 3186c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3187c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 3188c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 3189c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 31901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case ObjCPropertyDecl::Retain: S += ",&"; break; 3191c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3192c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3193c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3194c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 3195c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 3196c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 3197c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 3198c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3199090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 3200090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 32011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3202c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 3203c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 3204077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 3205c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3206c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3207c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 3208c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 3209077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 3210c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3211c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3212c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 3213c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 3214c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 321539f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 3216c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3217c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3218c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 3219c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 3220c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3221a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 32221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Another legacy compatibility encoding: 32-bit longs are encoded as 32231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 'l' or 'L' , but not always. For typedefs, we need to use 3224a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 3225a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 3226a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 32278e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 3228183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = PointeeTy->getAs<BuiltinType>()) { 3229c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 3230c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3231a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 32321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else 3233c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 3234c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3235a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 3236a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3237a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3238a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 3239a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 32407d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 3241153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 324282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 324382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 324482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 324582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 32461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(T, S, true, true, Field, 32475b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 324882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 324982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 32501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void EncodeBitField(const ASTContext *Context, std::string& S, 3251153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 32528b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 32538b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 32548b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 32559a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 32568b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 32578b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 32588b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 32598b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 326001eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar// FIXME: Use SmallString for accumulating string. 326182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 326282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 326382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 3264153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 3265090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 32666ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 3267183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = T->getAs<BuiltinType>()) { 3268ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 3269ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 3270ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 3271ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 32721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: assert(0 && "Unhandled builtin type kind"); 3273ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 3274ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 3275ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 3276ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 3277ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 3278ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 32791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::ULong: 32801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 32811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 328272696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 3283ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 3284ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 3285ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 3286ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 3287ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 3288ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 32891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::Long: 32901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 32911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 3292ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 3293ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 3294ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 3295ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 3296ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 3297ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 329843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 32991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3300ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 3301ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3302ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3304183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) { 3305c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 33061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 3307c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 3308ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3309ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33116217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 331285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 3313a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 3314a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 3315a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 3316a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 33171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Also, do not emit the 'r' for anything but the outermost type! 33188e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 3319a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 3320a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3321a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3322a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 33239fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 3324a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 33256217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 33266217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 3327a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 3328a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3329a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3330a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3331a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3332a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 3333a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 3334a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 3335a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 3336a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 3337a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 3338a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 3339a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 3340a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 3341a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3342a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 334314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (isObjCSelType(PointeeTy)) { 33448baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 33458baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 3346c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 33471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 334885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 334985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 335085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 3351e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 335285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 335385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 335485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 33556217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 33569533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 33579533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 33589533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 33599533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 33609533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 33619533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 33629533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 33639533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 33649533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 33659533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 33669533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 336785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 336885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 3369a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 3370a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 33711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 337243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 3373ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3374ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3376ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 3377ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 3378ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3379559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 3380559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 3381559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 3382559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 33831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3384559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3385559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 3386559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 33871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3388559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3389559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 3390559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 3391559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 3392559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3393559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 3394559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 33951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3397559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3398559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 3399559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 3400ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3401ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3403183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (T->getAs<FunctionType>()) { 3404c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 3405ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3406ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34086217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 340982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 3410d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 3411502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 3412502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3413502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 3414502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 3415502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 3416502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 34170d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 34187d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 341917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 342017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 342144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 342243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 3423d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 342444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 3425d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 3426d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 34271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3428d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 342943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 34301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 343143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 3432d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 3433a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 3434a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 34351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(qt, S, false, true, 343643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 3437d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 34387d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 34396de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 3440d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 3441ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3442ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3444ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 34458b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 34468b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 34478b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 34488b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 3449ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3450ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3452ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 345321a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 3454ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3455ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>()) { 345843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 34590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ObjCInterfaceDecl *OI = OIT->getDecl(); 346043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 346143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 346243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 346343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3464f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 346543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3466f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 346743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 34681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 346943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 347043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 34711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 347243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 347343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 347443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3475ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 347643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 34771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3478183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = T->getAs<ObjCObjectPointerType>()) { 347914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 348014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 348114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3482ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 348427d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->isObjCClassType() || OPT->isObjCQualifiedClassType()) { 348527d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // FIXME: Consider if we need to output qualifiers for 'Class<p>'. 348627d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // Since this is a binary compatibility issue, need to consult with runtime 348727d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // folks. Fortunately, this is a *very* obsure construct. 348814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 348914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3490ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3492ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 34931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(getObjCIdType(), S, 349414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 349514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 349614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 349714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 349814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 349914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 350067ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 350167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 350214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 350314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 350414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 350514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 350614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 350714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 350814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3509ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3511ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3512ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3513ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3514ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 35151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We encode the underlying type which comes out as 3516ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3517ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 35181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, 35191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump false, ExpandPointedToStructures, 3520ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 352114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 352214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3523ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3524ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 352527d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->getInterfaceDecl() && (FD || EncodingProperty)) { 3526ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 352727d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff S += OPT->getInterfaceDecl()->getIdentifier()->getName(); 352867ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 352967ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3530ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3531ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3532ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 35331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3534ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3535ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3536ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3537ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3539ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 354085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 354185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 35421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3543ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3544ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3545ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3546ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3547ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3548ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3549ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3550ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3551ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3552ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3553ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3554ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3555ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3556ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3557ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3558ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3559b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 35601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3561b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3562b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3563b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3564ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3565de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 35667e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 35677e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3568ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 3569319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 3570319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3571183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const TypedefType *TT = T->getAs<TypedefType>(); 3572319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 3573319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 3574319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 3575b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3576b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 35776217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *ptr = TD->getUnderlyingType()->getAs<PointerType>(); 3578c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 3579c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3580b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 3581c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 3582c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3583b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 3584b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3585b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3586ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3587a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3588390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3589390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3590ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3591de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 35928baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 35938baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3594a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 35951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(ObjCConstantStringType.isNull() && 35962198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 35971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3598a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 35992198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 36002198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 36017532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 36027532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 36031eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 36047532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 36057532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 36067532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 36077532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 36087532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 36097532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 36107532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 36117532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 36127532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 36137532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 36147532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 36157532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 36167532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 36177532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 36187532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 36197532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3620d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 3621d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 36221eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3623d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 3624d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor OverloadedFunctionDecl *Template) { 3625d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 3626d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 36271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3628d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 3629d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 3630d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3631d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 3632d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3633d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3634d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 36351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3636d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 3637d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 3638d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 36397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 36407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 36411eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 36427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 36431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((!NNS || NNS->isDependent()) && 36443b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor "Nested name specifier must be dependent"); 36457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 36467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 36477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 36487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 36497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 36507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 36517532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 36527532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 36537532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 36547532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 36557532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 36567532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 36577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 36587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 36597532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 36607532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 36617532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 36627532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 36637532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 36647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 36657532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 36667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 36677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3668ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Retrieve the template name that represents a dependent 3669ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template name such as \c MetaFun::template operator+. 3670ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorTemplateName 3671ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 3672ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Operator) { 3673ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert((!NNS || NNS->isDependent()) && 3674ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor "Nested name specifier must be dependent"); 3675ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3676ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor llvm::FoldingSetNodeID ID; 3677ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateName::Profile(ID, NNS, Operator); 3678ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3679ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor void *InsertPos = 0; 3680ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateName *QTN = 3681ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3682ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3683ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (QTN) 3684ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3685ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3686ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 3687ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (CanonNNS == NNS) { 3688ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator); 3689ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 3690ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Operator); 3691ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator, Canon); 3692ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 3693ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3694ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 3695ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3696ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 3697ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3698b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3699d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3700d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3701e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallCanQualType ASTContext::getFromTargetType(unsigned Type) const { 3702b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 3703e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall case TargetInfo::NoInt: return CanQualType(); 3704b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3705b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3706b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3707b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3708b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3709b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3710b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3711b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3712b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3713b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3714b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3715e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall return CanQualType(); 3716b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3717b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3718b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3719b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3720b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3721b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3722fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3723fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3724fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3725f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 3726fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3727fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3728fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3729fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 373040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3731fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3732fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 37331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 3734fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3735fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 37364fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 37374fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 37384fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 37390953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualifiers::GC ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 37400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttrs = Qualifiers::GCNone; 37414fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 37424fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3743b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 37444fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 37451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (or pointers to them) be treated as though they were declared 3746a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 37470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GCAttrs == Qualifiers::GCNone) { 374875212ee91313bc1b6dd826d9b173541bc4016539Fariborz Jahanian if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) 37490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttrs = Qualifiers::Strong; 3750a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 37516217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 3752a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3753c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3754c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3755f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 37560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qualifiers::GCNone; 37574fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3758b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 37594fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 37604fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 37616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 37626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 37636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3764770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 37651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// areCompatVectorTypes - Return true if the two specified vector types are 37666ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 37676ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 37686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 3769467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()); 37706ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 377161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 37726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 37736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 37744084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 37754084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 37764084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 37774084c306635b70f37029dca938444e6013f08684Steve Naroff 37784084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 37794084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 37800fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanianbool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 37810fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian ObjCProtocolDecl *rProto) { 37824084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 378314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 37844084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 37854084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 37864084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 37874084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 37884084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 37894084c306635b70f37029dca938444e6013f08684Steve Naroff} 379014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 37914084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 37924084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 37934084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 37944084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 37954084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 37964084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 37974084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 37984084c306635b70f37029dca938444e6013f08684Steve Naroff} 37994084c306635b70f37029dca938444e6013f08684Steve Naroff 38004084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 38014084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 38024084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 38034084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 38044084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 38051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isVoidPointerType() || 38064084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 38074084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 38081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else if (rhs->isVoidPointerType() || 38094084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 38104084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 38114084c306635b70f37029dca938444e6013f08684Steve Naroff 38124084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 3813183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); 38141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38154084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 38161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38174084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 38181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a unqualified interface pointer "NSString*", 38194084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 38204084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 38214084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 38224084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 38234084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 38244084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 38254084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 38260fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (!rhsID->ClassImplementsProtocol(*I, true)) 38274084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 38284084c306635b70f37029dca938444e6013f08684Steve Naroff } 38294084c306635b70f37029dca938444e6013f08684Steve Naroff } 38304084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 38314084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 38324084c306635b70f37029dca938444e6013f08684Steve Naroff } 38331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 38344084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 38354084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 38364084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 38374084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 3838de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 3839de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 3840de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 3841de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 38424084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 38434084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 38444084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 38454084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 38464084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 38474084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 38488f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 38498f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 3850de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 38511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a qualified interface pointer "NSString<P>*", 38524084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 38534084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 38544084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 38554084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 38564084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 38574084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 38584084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 38590fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (rhsID->ClassImplementsProtocol(*I, true)) { 38604084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 38614084c306635b70f37029dca938444e6013f08684Steve Naroff break; 38624084c306635b70f37029dca938444e6013f08684Steve Naroff } 38634084c306635b70f37029dca938444e6013f08684Steve Naroff } 38644084c306635b70f37029dca938444e6013f08684Steve Naroff } 38654084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 3866de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 3867de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 38681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3869de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 3870de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 38711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38724084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 38734084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 38744084c306635b70f37029dca938444e6013f08684Steve Naroff 38751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCObjectPointerType *lhsOPT = 38764084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 38774084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 38784084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 38794084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 38804084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 38814084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 38824084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 38834084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 38844084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 38850fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (lhsID->ClassImplementsProtocol(*I, true)) { 38864084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 38874084c306635b70f37029dca938444e6013f08684Steve Naroff break; 38884084c306635b70f37029dca938444e6013f08684Steve Naroff } 38894084c306635b70f37029dca938444e6013f08684Steve Naroff } 38904084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 38914084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 38924084c306635b70f37029dca938444e6013f08684Steve Naroff } 38934084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 38944084c306635b70f37029dca938444e6013f08684Steve Naroff } 38951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 38964084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 38974084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 38984084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 38994084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 39004084c306635b70f37029dca938444e6013f08684Steve Naroff 39014084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 39024084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 39034084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 39044084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 39054084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 39064084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 39074084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 39084084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 39094084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 39104084c306635b70f37029dca938444e6013f08684Steve Naroff break; 39114084c306635b70f37029dca938444e6013f08684Steve Naroff } 39124084c306635b70f37029dca938444e6013f08684Steve Naroff } 39134084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 39144084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 39154084c306635b70f37029dca938444e6013f08684Steve Naroff } 39164084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39174084c306635b70f37029dca938444e6013f08684Steve Naroff } 39184084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 39194084c306635b70f37029dca938444e6013f08684Steve Naroff} 39204084c306635b70f37029dca938444e6013f08684Steve Naroff 39214084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 39224084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 39234084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 39244084c306635b70f37029dca938444e6013f08684Steve Naroff/// 39254084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 39264084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 39274084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 39284084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 39294084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39304084c306635b70f37029dca938444e6013f08684Steve Naroff 39314084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 39321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 39331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(RHSOPT,0), 39344084c306635b70f37029dca938444e6013f08684Steve Naroff false); 39354084c306635b70f37029dca938444e6013f08684Steve Naroff 39364084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 39374084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 39384084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 39394084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 39401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39414084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 394214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 394314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 3944e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// getIntersectionOfProtocols - This routine finds the intersection of set 3945e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// of protocols inherited from two distinct objective-c pointer objects. 3946e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// It is used to build composite qualifier list of the composite type of 3947e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// the conditional expression involving two objective-c pointer objects. 3948e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianstatic 3949e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid getIntersectionOfProtocols(ASTContext &Context, 3950e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 3951e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *RHSOPT, 3952e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVectorImpl<ObjCProtocolDecl *> &IntersectionOfProtocols) { 3953e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 3954e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 3955e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 3956e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 3957e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocolSet; 3958e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned LHSNumProtocols = LHS->getNumProtocols(); 3959e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (LHSNumProtocols > 0) 3960e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHS->qual_begin(), LHS->qual_end()); 3961e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 3962e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> LHSInheritedProtocols; 3963e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Context.CollectInheritedProtocols(LHS->getDecl(), LHSInheritedProtocols); 3964e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHSInheritedProtocols.begin(), 3965e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSInheritedProtocols.end()); 3966e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 3967e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 3968e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned RHSNumProtocols = RHS->getNumProtocols(); 3969e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (RHSNumProtocols > 0) { 3970e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl **RHSProtocols = (ObjCProtocolDecl **)RHS->qual_begin(); 3971e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (unsigned i = 0; i < RHSNumProtocols; ++i) 3972e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (InheritedProtocolSet.count(RHSProtocols[i])) 3973e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.push_back(RHSProtocols[i]); 3974e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 3975e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 3976e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> RHSInheritedProtocols; 3977e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Context.CollectInheritedProtocols(RHS->getDecl(), RHSInheritedProtocols); 3978e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // FIXME. This may cause duplication of protocols in the list, but should 3979e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // be harmless. 3980e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (unsigned i = 0, len = RHSInheritedProtocols.size(); i < len; ++i) 3981e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (InheritedProtocolSet.count(RHSInheritedProtocols[i])) 3982e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.push_back(RHSInheritedProtocols[i]); 3983e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 3984e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 3985e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 3986db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// areCommonBaseCompatible - Returns common base class of the two classes if 3987db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// one found. Note that this is O'2 algorithm. But it will be called as the 3988db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// last type comparison in a ?-exp of ObjC pointer types before a 3989db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// warning is issued. So, its invokation is extremely rare. 3990db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz JahanianQualType ASTContext::areCommonBaseCompatible( 3991db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 3992db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *RHSOPT) { 3993db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 3994db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 3995db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian if (!LHS || !RHS) 3996db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 3997db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 3998db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian while (const ObjCInterfaceDecl *LHSIDecl = LHS->getDecl()->getSuperClass()) { 3999db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian QualType LHSTy = getObjCInterfaceType(LHSIDecl); 4000db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian LHS = LHSTy->getAs<ObjCInterfaceType>(); 4001e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (canAssignObjCInterfaces(LHS, RHS)) { 4002e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> IntersectionOfProtocols; 4003e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian getIntersectionOfProtocols(*this, 4004e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSOPT, RHSOPT, IntersectionOfProtocols); 4005e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (IntersectionOfProtocols.empty()) 4006e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy); 4007e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else 4008e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy, &IntersectionOfProtocols[0], 4009e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.size()); 4010e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return LHSTy; 4011e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4012db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian } 4013db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4014db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4015db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian} 4016db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 40173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 40183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 40196ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 40206ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 40216ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 40226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 40231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 40256ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 4026c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 40276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 40281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 40306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 4031c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 40326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 40331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4034c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 4035c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 403691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 403791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 403891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 403991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 404091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 4041c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 40424084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 40438f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 40448f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 404591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 40468f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 40478f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 404891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 404991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 405091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 405191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 405291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 405391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 405491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 40556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 40566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 4057389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 4058389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 4059183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); 4060183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); 40611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 406214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 4063389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 406414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 406514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 406614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 4067389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 4068389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 40691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 4070ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 40711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C99 6.2.7p1: Two types have compatible types if their types are the 4072ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 40733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 40743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 40753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 40763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 40773d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 4078183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *lbase = lhs->getAs<FunctionType>(); 4079183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *rbase = rhs->getAs<FunctionType>(); 408072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 408172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 40823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 40833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 40843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 40853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 40863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 40873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 408861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 408961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 409061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 409161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 40926dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump // FIXME: double check this 40932455636163fdd18581d7fdae816433f886d88213Mike Stump bool NoReturn = lbase->getNoReturnAttr() || rbase->getNoReturnAttr(); 40942455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != lbase->getNoReturnAttr()) 40952455636163fdd18581d7fdae816433f886d88213Mike Stump allLTypes = false; 40962455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != rbase->getNoReturnAttr()) 40972455636163fdd18581d7fdae816433f886d88213Mike Stump allRTypes = false; 40981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 4100465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 4101465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 41023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 41033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 41043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 41053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 41063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 41073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 41083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 41093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 41103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 41113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 41123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 41137fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 41147fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 41157fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 41163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 41173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 41183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 41193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 41203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 41213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 41223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 41233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 412461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 412561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 412661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 412761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 41283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 41293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 41303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 41313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 41322455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 41332455636163fdd18581d7fdae816433f886d88213Mike Stump NoReturn); 41343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 41353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 41363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 41373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 41383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 413972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 41403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 4141465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 41423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 41433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 41443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 41453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 41463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 41473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 41483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 41493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 41503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 41513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 41523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 41533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 41543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 41553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 41563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 41573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 41583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 41592d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 41602d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getTypeQuals(), NoReturn); 41613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 41623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 41633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 41643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 41652455636163fdd18581d7fdae816433f886d88213Mike Stump return getFunctionNoProtoType(retType, NoReturn); 41663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 41673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 41683d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 416943d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 417043d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 417143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 41727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 41737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 41743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 41753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 41767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 41777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 41786217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = LHS->getAs<ReferenceType>()) 4179c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 41806217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = RHS->getAs<ReferenceType>()) 4181c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 41823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 41833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 41843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 41853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4186f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 41873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 41883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 41893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 41900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the qualifiers are different, the types aren't compatible... mostly. 41910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers LQuals = LHSCan.getQualifiers(); 41920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers RQuals = RHSCan.getQualifiers(); 41930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals != RQuals) { 41940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If any of these qualifiers are different, we have a type 41950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // mismatch. 41960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 41970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall LQuals.getAddressSpace() != RQuals.getAddressSpace()) 41980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 41990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 42000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Exactly one GC qualifier difference is allowed: __strong is 42010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // okay if the other type has no GC qualifier but is an Objective 42020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // C object pointer (i.e. implicitly strong by default). We fix 42030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // this by pretending that the unqualified type was actually 42040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // qualified __strong. 42050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 42060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 42070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 42080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 42090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 42100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 42110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 42120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { 42130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); 42140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 42150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { 42160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); 42170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 42183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 42190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 42200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 42210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Okay, qualifiers are equal. 42223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4223852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 4224852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 4225f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 42261adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 42271adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 42281adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 42291adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 42304c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 42314c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 4232a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 4233a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 4234a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 4235a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 42361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4237213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 4238213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 4239213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 42401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42414e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 42424e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 42431adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 42441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // a signed integer type, or an unsigned integer type. 4245183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = LHS->getAs<EnumType>()) { 42463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 42473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 4248bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 4249183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = RHS->getAs<EnumType>()) { 42503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 42513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 4252bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 42531adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 42543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 4255ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 42563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42574a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 42581adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 425972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 426072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 426172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 426272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 426372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 426472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 426572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 426672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 42677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 42687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 426972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 427072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 427172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 427272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 427372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 427472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 427572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 427672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 427772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 427872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 427972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 42801adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 42813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 42823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 42836217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 42846217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 42853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 42863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 428707d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 428861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 428907d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 429061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 42913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 42923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 4293c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 4294c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 4295c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 42966217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 42976217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 4298c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 4299c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 4300c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 4301c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 4302c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 4303c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 4304c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 4305c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 43061adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 43073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 43083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 43093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 43103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 43113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 43123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 43143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 43153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 43163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 431761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 431861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 431961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 432061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 43213bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 43223bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 43233bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 43243bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 43253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 43263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 432761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 432861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 432961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 433061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 43313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 43323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 43333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 43343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 43353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 43363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 43383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 43393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 43403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 43413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 43423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43433bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 43443bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 43457e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 43467e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 43473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43481adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 43493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 435072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 435172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 43523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 43531adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 43543cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 43553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 435664cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 435764cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 435864cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 43593cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 43605a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 4361183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (areCompatVectorTypes(LHS->getAs<VectorType>(), RHS->getAs<VectorType>())) 43623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 436361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 436461490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 43655fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 43665a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 43675a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 4368183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* LHSIface = LHS->getAs<ObjCInterfaceType>(); 4369183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* RHSIface = RHS->getAs<ObjCInterfaceType>(); 43705fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 43715fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 43725fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 43735fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 43743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 437561490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 437614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 4377183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (canAssignObjCInterfaces(LHS->getAs<ObjCObjectPointerType>(), 4378183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall RHS->getAs<ObjCObjectPointerType>())) 437914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 438014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4381bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 438214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 43835a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 43845a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 43855a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 43867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 43877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 43887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 4389ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 439072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 439172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 4392ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 43937192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 43945426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 4395ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 4396ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 439788054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 4398ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 4399632d772a78db7e2cd9b36f8a22aee49d44486fbfSebastian Redl if (T->isBooleanType()) 4400ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 44016a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (FixedWidthIntType *FWIT = dyn_cast<FixedWidthIntType>(T)) { 4402f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 4403f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 4404f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 4405ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 4406ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4407ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 4408ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 4409ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 44106a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 44116a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // Turn <4 x signed int> -> <4 x unsigned int> 44126a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const VectorType *VTy = T->getAs<VectorType>()) 44136a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), 44146a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner VTy->getNumElements()); 44156a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 44166a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // For enums, we return the unsigned version of the base type. 44176a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const EnumType *ETy = T->getAs<EnumType>()) 4418ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 44196a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 44206a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner const BuiltinType *BTy = T->getAs<BuiltinType>(); 44216a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner assert(BTy && "Unexpected signed integer type"); 4422ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 4423ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 4424ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 4425ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 4426ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 4427ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 4428ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 4429ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 4430ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 4431ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 4432ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 4433ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 44342df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 44352df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 4436ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 4437ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 4438ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 4439ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 4440ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4441ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 44422cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 44432cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 44442cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 444586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 444686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 444786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 444886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 444986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 445086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 445186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 445286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 44531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 445486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 445586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 445686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 445786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 445886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 44591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 446086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 446186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 446286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 446386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 44641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: Done = true; --Str; break; 446586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 446686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 446786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 446886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 446986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 447086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 447186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 447286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 447386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 447486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 447586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 447686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 447786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 447886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 447986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 448086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 448186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 448286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 44831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 448486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 448586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 448686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 448786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 448886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 448986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 449086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 449186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 449286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 449386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 449486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 449586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 449686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 449786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 449886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 449986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 450086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 450186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 450286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 450386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 450486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 450586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 450686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 450786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 450886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 450986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 451086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 451186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 451286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 451386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 451486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 451586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 451686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 451786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 451886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 451986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 452086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 452186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 452286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 452386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 452486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 452586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 452686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 452786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 452886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 452986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 453086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 453186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 453286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 453386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 453486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 453586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 453686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 453786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 453886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 453986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 454086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 454186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 454286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 454386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 454486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 454586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 454686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 454786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 454886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 454986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 455086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 455186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 455286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 455386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 455486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 455586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 455686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 455786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 455886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 455986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 456086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 456186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 456286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 456386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 456486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 456586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 456686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 45671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 456886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 45691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 457086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 457186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 457286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 457386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4574d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor case 'X': { 4575d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 4576d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor Type = Context.getComplexType(ElementType); 4577d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor break; 4578d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor } 45799a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 4580c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 4581c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 4582f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 458386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 458486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4585fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 45869a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 4587f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 4588782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 4589f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 4590f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 4591f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 4592fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 4593f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 4594fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 4595fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 4596fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 4597782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 45981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 459986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 460086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 46011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 460286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 460386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 460486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 460586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 460686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 460786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 460886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 460986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 461086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 461186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 461286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 461386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 46140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Type = Type.withConst(); 461586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 461686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 461786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 46181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 461986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 462086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 462186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 462286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 462386df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 462486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 462586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 46261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 462786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 46281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 462986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 463086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 463186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 463286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 463386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 463486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 463586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 463686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 463786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 463886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 463986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 464086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 46411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 464286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 464386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 464486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 464586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 464686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 464786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 464886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 464986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 465086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 465186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 465286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 465386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 4654a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4655a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType 4656a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 4657a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Perform the usual unary conversions. We do this early so that 4658a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // integral promotions to "int" can allow us to exit early, in the 4659a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // lhs == rhs check. Also, for conversion purposes, we ignore any 4660a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // qualifiers. For example, "const float" and "float" are 4661a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // equivalent. 4662a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isPromotableIntegerType()) 4663a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getPromotedIntegerType(lhs); 4664a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4665a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = lhs.getUnqualifiedType(); 4666a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isPromotableIntegerType()) 4667a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getPromotedIntegerType(rhs); 4668a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4669a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = rhs.getUnqualifiedType(); 4670a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4671a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If both types are identical, no conversion is needed. 4672a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs == rhs) 4673a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 46741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4675a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If either side is a non-arithmetic type (e.g. a pointer), we are done. 4676a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The caller can deal with this (e.g. pointer + int). 4677a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 4678a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 46791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 46801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // At this point, we have two different arithmetic types. 46811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4682a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle complex types first (C99 6.3.1.8p1). 4683a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexType() || rhs->isComplexType()) { 4684a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the complex type. 46851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 4686a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4687a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4688a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 46891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 4690a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4691a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4692a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4693a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // This handles complex/complex, complex/float, or float/complex. 46941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When both operands are complex, the shorter operand is converted to the 46951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type of the longer, and that is the type of the result. This corresponds 46961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to what is done when combining two real floating-point operands. 46971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The fun begins when size promotion occur across type domains. 4698a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // From H&S 6.3.4: When one operand is complex and the other is a real 46991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // floating-point type, the less precise type is converted, within it's 4700a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // real or complex domain, to the precision of the other type. For example, 47011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // when combining a "long double" with a "double _Complex", the 4702a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // "double _Complex" is promoted to "long double _Complex". 4703a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 47041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 47051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (result > 0) { // The left side is bigger, convert rhs. 4706a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 47071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (result < 0) { // The right side is bigger, convert lhs. 4708a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 47091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4710a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // At this point, lhs and rhs have the same rank/size. Now, make sure the 4711a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // domains match. This is a requirement for our implementation, C99 4712a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // does not require this promotion. 4713a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs != rhs) { // Domains don't match, we have complex/float mix. 4714a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 4715a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4716a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { // handle "_Complex double, double". 4717a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4718a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4719a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4720a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // The domain/size match exactly. 4721a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4722a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Now handle "real" floating types (i.e. float, double, long double). 4723a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 4724a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the real floating type. 4725a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isIntegerType()) { 4726a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the lhs floating point type. 4727a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4728a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4729a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isComplexIntegerType()) { 4730a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the complex floating point type. 4731a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(lhs); 4732a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4733a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isIntegerType()) { 4734a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the rhs floating point type. 4735a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4736a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 47371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isComplexIntegerType()) { 4738a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the complex floating point type. 4739a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(rhs); 4740a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4741a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // We have two real floating types, float/complex combos were handled above. 4742a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Convert the smaller operand to the bigger result. 4743a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 4744a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (result > 0) // convert the rhs 4745a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4746a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(result < 0 && "illegal float comparison"); 4747a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; // convert the lhs 4748a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4749a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 4750a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle GCC complex int extension. 4751a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 4752a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 4753a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4754a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsComplexInt && rhsComplexInt) { 47551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 4756a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsComplexInt->getElementType()) >= 0) 4757a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // convert the rhs 4758a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4759a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (lhsComplexInt && rhs->isIntegerType()) { 4760a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4761a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4762a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (rhsComplexInt && lhs->isIntegerType()) { 4763a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4764a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4765a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4766a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4767a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Finally, we have two differing integer types. 4768a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The rules for this case are in C99 6.3.1.8 4769a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int compare = getIntegerTypeOrder(lhs, rhs); 4770a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman bool lhsSigned = lhs->isSignedIntegerType(), 4771a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsSigned = rhs->isSignedIntegerType(); 4772a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman QualType destType; 4773a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsSigned == rhsSigned) { 4774a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Same signedness; use the higher-ranked type 4775a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = compare >= 0 ? lhs : rhs; 4776a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (compare != (lhsSigned ? 1 : -1)) { 4777a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The unsigned type has greater than or equal rank to the 4778a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // signed type, so use the unsigned type 4779a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? rhs : lhs; 4780a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 4781a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The two types are different widths; if we are here, that 4782a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // means the signed type is larger than the unsigned type, so 4783a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // use the signed type. 4784a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? lhs : rhs; 4785a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { 4786a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The signed type is higher-ranked than the unsigned type, 4787a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // but isn't actually any bigger (like unsigned int and long 4788a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // on most 32-bit systems). Use the unsigned type corresponding 4789a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // to the signed type. 4790a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 4791a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4792a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return destType; 4793a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 4794